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MMC core:

Browse Source 
- Add support to enable irq wake for slot gpio
  - Remove MMC_CAP2_HC_ERASE_SZ and make it the default behaviour
  - Improve R1 response error checks for stop commands
  - Cleanup and clarify some MMC specific code
  - Keep card runtime resumed while adding SDIO function devices
  - Use device_property_read instead of of_property_read in mmc_of_parse()
  - Move boot partition locking into a driver op to enable proper I/O scheduling
  - Move multi/single-ioctl() to use block layer to enable proper I/O scheduling
  - Delete bounce buffer Kconfig option
  - Improve the eMMC HW reset support provided via the eMMC pwrseq
  - Add host API to manage SDIO IRQs from a workqueue
 
 MMC host:
  - dw_mmc: Drop support for multiple slots
  - dw_mmc: Use device_property_read instead of of_property_read
  - dw_mmc-rockchip: Optional improved tuning to greatly decrease tuning time
  - dw_mmc: Prevent rpm suspend for SDIO IRQs instead of always for SDIO cards
  - dw_mmc: Convert to use MMC_CAP2_SDIO_IRQ_NOTHREAD for SDIO IRQs
  - omap_hsmmc: Convert to mmc regulator APIs to consolidate code
  - omap_hsmmc: Deprecate "vmmc_aux" in DT and use "vqmmc" instead
  - tmio: make sure SDIO gets reinitialized after resume
  - sdhi: add CMD23 support to R-Car Gen2 & Gen3
  - tmio: add CMD23 support
  - sdhi/tmio: Refactor code and rename files to simplify Kconfig options
  - sdhci-pci: Enable card detect wake for Intel BYT-related SD controllers
  - sdhci-pci: Add support for Intel CNP
  - sdhci-esdhc-imx: Remove ENGcm07207 workaround - allow multi block transfers
  - sdhci-esdhc-imx: Allow all supported prescaler values
  - sdhci-esdhc-imx: Fix DAT line software reset
  - sdhci-esdhc: Add SDHCI_QUIRK_32BIT_DMA_ADDR
  - atmel-mci: Drop AVR32 support
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Merge tag 'mmc-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Add support to enable irq wake for slot gpio
   - Remove MMC_CAP2_HC_ERASE_SZ and make it the default behaviour
   - Improve R1 response error checks for stop commands
   - Cleanup and clarify some MMC specific code
   - Keep card runtime resumed while adding SDIO function devices
   - Use device_property_read instead of of_property_read in mmc_of_parse()
   - Move boot partition locking into a driver op to enable proper I/O scheduling
   - Move multi/single-ioctl() to use block layer to enable proper I/O scheduling
   - Delete bounce buffer Kconfig option
   - Improve the eMMC HW reset support provided via the eMMC pwrseq
   - Add host API to manage SDIO IRQs from a workqueue

  MMC host:
   - dw_mmc: Drop support for multiple slots
   - dw_mmc: Use device_property_read instead of of_property_read
   - dw_mmc-rockchip: Optional improved tuning to greatly decrease tuning time
   - dw_mmc: Prevent rpm suspend for SDIO IRQs instead of always for SDIO cards
   - dw_mmc: Convert to use MMC_CAP2_SDIO_IRQ_NOTHREAD for SDIO IRQs
   - omap_hsmmc: Convert to mmc regulator APIs to consolidate code
   - omap_hsmmc: Deprecate "vmmc_aux" in DT and use "vqmmc" instead
   - tmio: make sure SDIO gets reinitialized after resume
   - sdhi: add CMD23 support to R-Car Gen2 & Gen3
   - tmio: add CMD23 support
   - sdhi/tmio: Refactor code and rename files to simplify Kconfig options
   - sdhci-pci: Enable card detect wake for Intel BYT-related SD controllers
   - sdhci-pci: Add support for Intel CNP
   - sdhci-esdhc-imx: Remove ENGcm07207 workaround - allow multi block transfers
   - sdhci-esdhc-imx: Allow all supported prescaler values
   - sdhci-esdhc-imx: Fix DAT line software reset
   - sdhci-esdhc: Add SDHCI_QUIRK_32BIT_DMA_ADDR
   - atmel-mci: Drop AVR32 support"

* tag 'mmc-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (86 commits)
  mmc: dw_mmc: remove the unnecessary slot variable
  mmc: dw_mmc: use the 'slot' instead of 'cur_slot'
  mmc: dw_mmc: remove the 'id' arguments about functions relevant to slot
  mmc: dw_mmc: change the array of slots
  mmc: dw_mmc: remove the loop about finding slots
  mmc: dw_mmc: deprecated the "num-slots" property
  mmc: dw_mmc-rockchip: parse rockchip, desired-num-phases from DT
  dt-bindings: rockchip-dw-mshc: add optional rockchip, desired-num-phases
  mmc: renesas-sdhi: improve checkpatch cleanness
  mmc: tmio: improve checkpatch cleanness
  mmc: sdhci-pci: Enable card detect wake for Intel BYT-related SD controllers
  mmc: slot-gpio: Add support to enable irq wake on cd_irq
  mmc: core: Remove MMC_CAP2_HC_ERASE_SZ
  mmc: core: for data errors, take response of stop cmd into account
  mmc: core: check also R1 response for stop commands
  mmc: core: Clarify code for sending CSD
  mmc: core: Drop mmc_all_send_cid() and use mmc_send_cxd_native() instead
  mmc: core: Re-factor code for sending CID
  mmc: core: Remove redundant code in mmc_send_cid()
  mmc: core: Make mmc_can_reset() static
  ...
This commit is contained in:
Linus Torvalds 2017-07-04 11:11:56 -07:00
commit 17ece345a0
52 changed files with 1566 additions and 1938 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt
View File

@ -15,6 +15,7 @@ Required Properties:
- "rockchip,rk3288-dw-mshc": for Rockchip RK3288
- "rockchip,rv1108-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RV1108
- "rockchip,rk3036-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3036
- "rockchip,rk3328-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3328
- "rockchip,rk3368-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3368
- "rockchip,rk3399-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3399
@ -31,6 +32,10 @@ Optional Properties:
probing, low speeds or in case where all phases work at tuning time.
If not specified 0 deg will be used.
* rockchip,desired-num-phases: The desired number of times that the host
execute tuning when needed. If not specified, the host will do tuning
for 360 times, namely tuning for each degree.
Example:
rkdwmmc0@12200000 {

2
Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
View File

@ -18,7 +18,7 @@ Required properties:
Optional properties:
ti,dual-volt: boolean, supports dual voltage cards
<supply-name>-supply: phandle to the regulator device tree node
"supply-name" examples are "vmmc", "vmmc_aux" etc
"supply-name" examples are "vmmc", "vmmc_aux"(deprecated)/"vqmmc" etc
ti,non-removable: non-removable slot (like eMMC)
ti,needs-special-reset: Requires a special softreset sequence
ti,needs-special-hs-handling: HSMMC IP needs special setting for handling High Speed

2
MAINTAINERS
View File

@ -12915,7 +12915,7 @@ M: Wolfram Sang <wsa+renesas@sang-engineering.com>
L: linux-mmc@vger.kernel.org
S: Supported
F: drivers/mmc/host/tmio_mmc*
F: drivers/mmc/host/sh_mobile_sdhi.c
F: drivers/mmc/host/renesas_sdhi*
F: include/linux/mfd/tmio.h
TMP401 HARDWARE MONITOR DRIVER

11
arch/arm/boot/dts/omap3-overo-base.dtsi
View File

@ -74,16 +74,6 @@
gpio = <&gpio1 16 GPIO_ACTIVE_HIGH>; /* gpio_16: WiFi nReset */
startup-delay-us = <10000>;
};
/* Regulator to trigger the nReset signal of the Bluetooth module */
w3cbw003c_bt_nreset: regulator-w3cbw003c-bt-nreset {
compatible = "regulator-fixed";
regulator-name = "regulator-w3cbw003c-bt-nreset";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio6 4 GPIO_ACTIVE_HIGH>; /* gpio_164: BT nReset */
startup-delay-us = <10000>;
};
};
&omap3_pmx_core {
@ -191,7 +181,6 @@
pinctrl-names = "default";
pinctrl-0 = <&mmc2_pins>;
vmmc-supply = <&w3cbw003c_npoweron>;
vqmmc-supply = <&w3cbw003c_bt_nreset>;
vmmc_aux-supply = <&w3cbw003c_wifi_nreset>;
bus-width = <4>;
cap-sdio-irq;

18
drivers/mmc/core/Kconfig
View File

@ -61,24 +61,6 @@ config MMC_BLOCK_MINORS
If unsure, say 8 here.
config MMC_BLOCK_BOUNCE
bool "Use bounce buffer for simple hosts"
depends on MMC_BLOCK
default y
help
SD/MMC is a high latency protocol where it is crucial to
send large requests in order to get high performance. Many
controllers, however, are restricted to continuous memory
(i.e. they can't do scatter-gather), something the kernel
rarely can provide.
Say Y here to help these restricted hosts by bouncing
requests back and forth from a large buffer. You will get
a big performance gain at the cost of up to 64 KiB of
physical memory.
If unsure, say Y here.
config SDIO_UART
tristate "SDIO UART/GPS class support"
depends on TTY

269
drivers/mmc/core/block.c
View File

@ -127,14 +127,6 @@ MODULE_PARM_DESC(perdev_minors, "Minors numbers to allocate per device");
static inline int mmc_blk_part_switch(struct mmc_card *card,
struct mmc_blk_data *md);
static int get_card_status(struct mmc_card *card, u32 *status, int retries);
static void mmc_blk_requeue(struct request_queue *q, struct request *req)
{
spin_lock_irq(q->queue_lock);
blk_requeue_request(q, req);
spin_unlock_irq(q->queue_lock);
}
static struct mmc_blk_data *mmc_blk_get(struct gendisk *disk)
{
@ -197,6 +189,8 @@ static ssize_t power_ro_lock_store(struct device *dev,
int ret;
struct mmc_blk_data *md, *part_md;
struct mmc_card *card;
struct mmc_queue *mq;
struct request *req;
unsigned long set;
if (kstrtoul(buf, 0, &set))
@ -206,20 +200,14 @@ static ssize_t power_ro_lock_store(struct device *dev,
return count;
md = mmc_blk_get(dev_to_disk(dev));
mq = &md->queue;
card = md->queue.card;
mmc_get_card(card);
ret = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BOOT_WP,
card->ext_csd.boot_ro_lock |
EXT_CSD_BOOT_WP_B_PWR_WP_EN,
card->ext_csd.part_time);
if (ret)
pr_err("%s: Locking boot partition ro until next power on failed: %d\n", md->disk->disk_name, ret);
else
card->ext_csd.boot_ro_lock |= EXT_CSD_BOOT_WP_B_PWR_WP_EN;
mmc_put_card(card);
/* Dispatch locking to the block layer */
req = blk_get_request(mq->queue, REQ_OP_DRV_OUT, __GFP_RECLAIM);
req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_BOOT_WP;
blk_execute_rq(mq->queue, NULL, req, 0);
ret = req_to_mmc_queue_req(req)->drv_op_result;
if (!ret) {
pr_info("%s: Locking boot partition ro until next power on\n",
@ -392,7 +380,7 @@ static int ioctl_rpmb_card_status_poll(struct mmc_card *card, u32 *status,
return -EINVAL;
do {
err = get_card_status(card, status, 5);
err = __mmc_send_status(card, status, 5);
if (err)
break;
@ -450,7 +438,7 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
struct mmc_request mrq = {};
struct scatterlist sg;
int err;
int is_rpmb = false;
bool is_rpmb = false;
u32 status = 0;
if (!card || !md || !idata)
@ -570,9 +558,12 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev,
struct mmc_ioc_cmd __user *ic_ptr)
{
struct mmc_blk_ioc_data *idata;
struct mmc_blk_ioc_data *idatas[1];
struct mmc_blk_data *md;
struct mmc_queue *mq;
struct mmc_card *card;
int err = 0, ioc_err = 0;
struct request *req;
/*
* The caller must have CAP_SYS_RAWIO, and must be calling this on the
@ -598,17 +589,21 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev,
goto cmd_done;
}
mmc_get_card(card);
ioc_err = __mmc_blk_ioctl_cmd(card, md, idata);
/* Always switch back to main area after RPMB access */
if (md->area_type & MMC_BLK_DATA_AREA_RPMB)
mmc_blk_part_switch(card, dev_get_drvdata(&card->dev));
mmc_put_card(card);
/*
* Dispatch the ioctl() into the block request queue.
*/
mq = &md->queue;
req = blk_get_request(mq->queue,
idata->ic.write_flag ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN,
__GFP_RECLAIM);
idatas[0] = idata;
req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_IOCTL;
req_to_mmc_queue_req(req)->idata = idatas;
req_to_mmc_queue_req(req)->ioc_count = 1;
blk_execute_rq(mq->queue, NULL, req, 0);
ioc_err = req_to_mmc_queue_req(req)->drv_op_result;
err = mmc_blk_ioctl_copy_to_user(ic_ptr, idata);
blk_put_request(req);
cmd_done:
mmc_blk_put(md);
@ -625,8 +620,10 @@ static int mmc_blk_ioctl_multi_cmd(struct block_device *bdev,
struct mmc_ioc_cmd __user *cmds = user->cmds;
struct mmc_card *card;
struct mmc_blk_data *md;
struct mmc_queue *mq;
int i, err = 0, ioc_err = 0;
__u64 num_of_cmds;
struct request *req;
/*
* The caller must have CAP_SYS_RAWIO, and must be calling this on the
@ -668,21 +665,26 @@ static int mmc_blk_ioctl_multi_cmd(struct block_device *bdev,
goto cmd_done;
}
mmc_get_card(card);
for (i = 0; i < num_of_cmds && !ioc_err; i++)
ioc_err = __mmc_blk_ioctl_cmd(card, md, idata[i]);
/* Always switch back to main area after RPMB access */
if (md->area_type & MMC_BLK_DATA_AREA_RPMB)
mmc_blk_part_switch(card, dev_get_drvdata(&card->dev));
mmc_put_card(card);
/*
* Dispatch the ioctl()s into the block request queue.
*/
mq = &md->queue;
req = blk_get_request(mq->queue,
idata[0]->ic.write_flag ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN,
__GFP_RECLAIM);
req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_IOCTL;
req_to_mmc_queue_req(req)->idata = idata;
req_to_mmc_queue_req(req)->ioc_count = num_of_cmds;
blk_execute_rq(mq->queue, NULL, req, 0);
ioc_err = req_to_mmc_queue_req(req)->drv_op_result;
/* copy to user if data and response */
for (i = 0; i < num_of_cmds && !err; i++)
err = mmc_blk_ioctl_copy_to_user(&cmds[i], idata[i]);
blk_put_request(req);
cmd_done:
mmc_blk_put(md);
cmd_err:
@ -852,21 +854,6 @@ static int mmc_sd_num_wr_blocks(struct mmc_card *card, u32 *written_blocks)
return 0;
}
static int get_card_status(struct mmc_card *card, u32 *status, int retries)
{
struct mmc_command cmd = {};
int err;
cmd.opcode = MMC_SEND_STATUS;
if (!mmc_host_is_spi(card->host))
cmd.arg = card->rca << 16;
cmd.flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC;
err = mmc_wait_for_cmd(card->host, &cmd, retries);
if (err == 0)
*status = cmd.resp[0];
return err;
}
static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms,
bool hw_busy_detect, struct request *req, bool *gen_err)
{
@ -875,7 +862,7 @@ static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms,
u32 status;
do {
err = get_card_status(card, &status, 5);
err = __mmc_send_status(card, &status, 5);
if (err) {
pr_err("%s: error %d requesting status\n",
req->rq_disk->disk_name, err);
@ -1043,7 +1030,7 @@ static int mmc_blk_cmd_recovery(struct mmc_card *card, struct request *req,
* we can't be sure the returned status is for the r/w command.
*/
for (retry = 2; retry >= 0; retry--) {
err = get_card_status(card, &status, 0);
err = __mmc_send_status(card, &status, 0);
if (!err)
break;
@ -1178,6 +1165,54 @@ int mmc_access_rpmb(struct mmc_queue *mq)
return false;
}
/*
* The non-block commands come back from the block layer after it queued it and
* processed it with all other requests and then they get issued in this
* function.
*/
static void mmc_blk_issue_drv_op(struct mmc_queue *mq, struct request *req)
{
struct mmc_queue_req *mq_rq;
struct mmc_card *card = mq->card;
struct mmc_blk_data *md = mq->blkdata;
int ret;
int i;
mq_rq = req_to_mmc_queue_req(req);
switch (mq_rq->drv_op) {
case MMC_DRV_OP_IOCTL:
for (i = 0; i < mq_rq->ioc_count; i++) {
ret = __mmc_blk_ioctl_cmd(card, md, mq_rq->idata[i]);
if (ret)
break;
}
/* Always switch back to main area after RPMB access */
if (md->area_type & MMC_BLK_DATA_AREA_RPMB)
mmc_blk_part_switch(card, dev_get_drvdata(&card->dev));
break;
case MMC_DRV_OP_BOOT_WP:
ret = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BOOT_WP,
card->ext_csd.boot_ro_lock |
EXT_CSD_BOOT_WP_B_PWR_WP_EN,
card->ext_csd.part_time);
if (ret)
pr_err("%s: Locking boot partition ro until next power on failed: %d\n",
md->disk->disk_name, ret);
else
card->ext_csd.boot_ro_lock |=
EXT_CSD_BOOT_WP_B_PWR_WP_EN;
break;
default:
pr_err("%s: unknown driver specific operation\n",
md->disk->disk_name);
ret = -EINVAL;
break;
}
mq_rq->drv_op_result = ret;
blk_end_request_all(req, ret);
}
static void mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req)
{
struct mmc_blk_data *md = mq->blkdata;
@ -1329,16 +1364,25 @@ static inline void mmc_apply_rel_rw(struct mmc_blk_request *brq,
R1_ADDRESS_ERROR | /* Misaligned address */ \
R1_BLOCK_LEN_ERROR | /* Transferred block length incorrect */\
R1_WP_VIOLATION | /* Tried to write to protected block */ \
R1_CARD_ECC_FAILED | /* Card ECC failed */ \
R1_CC_ERROR | /* Card controller error */ \
R1_ERROR) /* General/unknown error */
static bool mmc_blk_has_cmd_err(struct mmc_command *cmd)
{
if (!cmd->error && cmd->resp[0] & CMD_ERRORS)
cmd->error = -EIO;
return cmd->error;
}
static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card,
struct mmc_async_req *areq)
{
struct mmc_queue_req *mq_mrq = container_of(areq, struct mmc_queue_req,
areq);
struct mmc_blk_request *brq = &mq_mrq->brq;
struct request *req = mq_mrq->req;
struct request *req = mmc_queue_req_to_req(mq_mrq);
int need_retune = card->host->need_retune;
bool ecc_err = false;
bool gen_err = false;
@ -1353,7 +1397,7 @@ static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card,
* stop.error indicates a problem with the stop command. Data
* may have been transferred, or may still be transferring.
*/
if (brq->sbc.error || brq->cmd.error || brq->stop.error ||
if (brq->sbc.error || brq->cmd.error || mmc_blk_has_cmd_err(&brq->stop) ||
brq->data.error) {
switch (mmc_blk_cmd_recovery(card, req, brq, &ecc_err, &gen_err)) {
case ERR_RETRY:
@ -1407,7 +1451,8 @@ static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card,
return MMC_BLK_RETRY;
}
if (brq->data.error) {
/* Some errors (ECC) are flagged on the next commmand, so check stop, too */
if (brq->data.error || brq->stop.error) {
if (need_retune && !brq->retune_retry_done) {
pr_debug("%s: retrying because a re-tune was needed\n",
req->rq_disk->disk_name);
@ -1415,7 +1460,7 @@ static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card,
return MMC_BLK_RETRY;
}
pr_err("%s: error %d transferring data, sector %u, nr %u, cmd response %#x, card status %#x\n",
req->rq_disk->disk_name, brq->data.error,
req->rq_disk->disk_name, brq->data.error ?: brq->stop.error,
(unsigned)blk_rq_pos(req),
(unsigned)blk_rq_sectors(req),
brq->cmd.resp[0], brq->stop.resp[0]);
@ -1445,7 +1490,7 @@ static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq,
struct mmc_blk_data *md = mq->blkdata;
struct mmc_card *card = md->queue.card;
struct mmc_blk_request *brq = &mqrq->brq;
struct request *req = mqrq->req;
struct request *req = mmc_queue_req_to_req(mqrq);
/*
* Reliable writes are used to implement Forced Unit Access and
@ -1550,7 +1595,7 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
{
u32 readcmd, writecmd;
struct mmc_blk_request *brq = &mqrq->brq;
struct request *req = mqrq->req;
struct request *req = mmc_queue_req_to_req(mqrq);
struct mmc_blk_data *md = mq->blkdata;
bool do_rel_wr, do_data_tag;
@ -1647,7 +1692,7 @@ static void mmc_blk_rw_cmd_abort(struct mmc_queue *mq, struct mmc_card *card,
if (mmc_card_removed(card))
req->rq_flags |= RQF_QUIET;
while (blk_end_request(req, BLK_STS_IOERR, blk_rq_cur_bytes(req)));
mmc_queue_req_free(mq, mqrq);
mq->qcnt--;
}
/**
@ -1667,7 +1712,7 @@ static void mmc_blk_rw_try_restart(struct mmc_queue *mq, struct request *req,
if (mmc_card_removed(mq->card)) {
req->rq_flags |= RQF_QUIET;
blk_end_request_all(req, BLK_STS_IOERR);
mmc_queue_req_free(mq, mqrq);
mq->qcnt--; /* FIXME: just set to 0? */
return;
}
/* Else proceed and try to restart the current async request */
@ -1690,12 +1735,8 @@ static void mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *new_req)
bool req_pending = true;
if (new_req) {
mqrq_cur = mmc_queue_req_find(mq, new_req);
if (!mqrq_cur) {
WARN_ON(1);
mmc_blk_requeue(mq->queue, new_req);
new_req = NULL;
}
mqrq_cur = req_to_mmc_queue_req(new_req);
mq->qcnt++;
}
if (!mq->qcnt)
@ -1736,7 +1777,7 @@ static void mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *new_req)
*/
mq_rq = container_of(old_areq, struct mmc_queue_req, areq);
brq = &mq_rq->brq;
old_req = mq_rq->req;
old_req = mmc_queue_req_to_req(mq_rq);
type = rq_data_dir(old_req) == READ ? MMC_BLK_READ : MMC_BLK_WRITE;
mmc_queue_bounce_post(mq_rq);
@ -1769,12 +1810,12 @@ static void mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *new_req)
if (req_pending)
mmc_blk_rw_cmd_abort(mq, card, old_req, mq_rq);
else
mmc_queue_req_free(mq, mq_rq);
mq->qcnt--;
mmc_blk_rw_try_restart(mq, new_req, mqrq_cur);
return;
}
if (!req_pending) {
mmc_queue_req_free(mq, mq_rq);
mq->qcnt--;
mmc_blk_rw_try_restart(mq, new_req, mqrq_cur);
return;
}
@ -1819,7 +1860,7 @@ static void mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *new_req)
req_pending = blk_end_request(old_req, BLK_STS_IOERR,
brq->data.blksz);
if (!req_pending) {
mmc_queue_req_free(mq, mq_rq);
mq->qcnt--;
mmc_blk_rw_try_restart(mq, new_req, mqrq_cur);
return;
}
@ -1849,7 +1890,7 @@ static void mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *new_req)
}
} while (req_pending);
mmc_queue_req_free(mq, mq_rq);
mq->qcnt--;
}
void mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
@ -1870,23 +1911,54 @@ void mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
goto out;
}
if (req && req_op(req) == REQ_OP_DISCARD) {
/* complete ongoing async transfer before issuing discard */
if (mq->qcnt)
mmc_blk_issue_rw_rq(mq, NULL);
mmc_blk_issue_discard_rq(mq, req);
} else if (req && req_op(req) == REQ_OP_SECURE_ERASE) {
/* complete ongoing async transfer before issuing secure erase*/
if (mq->qcnt)
mmc_blk_issue_rw_rq(mq, NULL);
mmc_blk_issue_secdiscard_rq(mq, req);
} else if (req && req_op(req) == REQ_OP_FLUSH) {
/* complete ongoing async transfer before issuing flush */
if (mq->qcnt)
mmc_blk_issue_rw_rq(mq, NULL);
mmc_blk_issue_flush(mq, req);
if (req) {
switch (req_op(req)) {
case REQ_OP_DRV_IN:
case REQ_OP_DRV_OUT:
/*
* Complete ongoing async transfer before issuing
* ioctl()s
*/
if (mq->qcnt)
mmc_blk_issue_rw_rq(mq, NULL);
mmc_blk_issue_drv_op(mq, req);
break;
case REQ_OP_DISCARD:
/*
* Complete ongoing async transfer before issuing
* discard.
*/
if (mq->qcnt)
mmc_blk_issue_rw_rq(mq, NULL);
mmc_blk_issue_discard_rq(mq, req);
break;
case REQ_OP_SECURE_ERASE:
/*
* Complete ongoing async transfer before issuing
* secure erase.
*/
if (mq->qcnt)
mmc_blk_issue_rw_rq(mq, NULL);
mmc_blk_issue_secdiscard_rq(mq, req);
break;
case REQ_OP_FLUSH:
/*
* Complete ongoing async transfer before issuing
* flush.
*/
if (mq->qcnt)
mmc_blk_issue_rw_rq(mq, NULL);
mmc_blk_issue_flush(mq, req);
break;
default:
/* Normal request, just issue it */
mmc_blk_issue_rw_rq(mq, req);
card->host->context_info.is_waiting_last_req = false;
break;
}
} else {
mmc_blk_issue_rw_rq(mq, req);
/* No request, flushing the pipeline with NULL */
mmc_blk_issue_rw_rq(mq, NULL);
card->host->context_info.is_waiting_last_req = false;
}
@ -2171,7 +2243,6 @@ static int mmc_blk_probe(struct mmc_card *card)
{
struct mmc_blk_data *md, *part_md;
char cap_str[10];
int ret;
/*
* Check that the card supports the command class(es) we need.
@ -2181,15 +2252,9 @@ static int mmc_blk_probe(struct mmc_card *card)
mmc_fixup_device(card, mmc_blk_fixups);
ret = mmc_queue_alloc_shared_queue(card);
if (ret)
return ret;
md = mmc_blk_alloc(card);
if (IS_ERR(md)) {
mmc_queue_free_shared_queue(card);
if (IS_ERR(md))
return PTR_ERR(md);
}
string_get_size((u64)get_capacity(md->disk), 512, STRING_UNITS_2,
cap_str, sizeof(cap_str));
@ -2227,7 +2292,6 @@ static int mmc_blk_probe(struct mmc_card *card)
out:
mmc_blk_remove_parts(card, md);
mmc_blk_remove_req(md);
mmc_queue_free_shared_queue(card);
return 0;
}
@ -2245,7 +2309,6 @@ static void mmc_blk_remove(struct mmc_card *card)
pm_runtime_put_noidle(&card->dev);
mmc_blk_remove_req(md);
dev_set_drvdata(&card->dev, NULL);
mmc_queue_free_shared_queue(card);
}
static int _mmc_blk_suspend(struct mmc_card *card)

214
drivers/mmc/core/core.c
View File

@ -53,12 +53,6 @@
/* If the device is not responding */
#define MMC_CORE_TIMEOUT_MS (10 * 60 * 1000) /* 10 minute timeout */
/*
* Background operations can take a long time, depending on the housekeeping
* operations the card has to perform.
*/
#define MMC_BKOPS_MAX_TIMEOUT (4 * 60 * 1000) /* max time to wait in ms */
/* The max erase timeout, used when host->max_busy_timeout isn't specified */
#define MMC_ERASE_TIMEOUT_MS (60 * 1000) /* 60 s */
@ -362,74 +356,6 @@ static int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
return 0;
}
/**
* mmc_start_bkops - start BKOPS for supported cards
* @card: MMC card to start BKOPS
* @form_exception: A flag to indicate if this function was
* called due to an exception raised by the card
*
* Start background operations whenever requested.
* When the urgent BKOPS bit is set in a R1 command response
* then background operations should be started immediately.
*/
void mmc_start_bkops(struct mmc_card *card, bool from_exception)
{
int err;
int timeout;
bool use_busy_signal;
if (!card->ext_csd.man_bkops_en || mmc_card_doing_bkops(card))
return;
err = mmc_read_bkops_status(card);
if (err) {
pr_err("%s: Failed to read bkops status: %d\n",
mmc_hostname(card->host), err);
return;
}
if (!card->ext_csd.raw_bkops_status)
return;
if (card->ext_csd.raw_bkops_status < EXT_CSD_BKOPS_LEVEL_2 &&
from_exception)
return;
mmc_claim_host(card->host);
if (card->ext_csd.raw_bkops_status >= EXT_CSD_BKOPS_LEVEL_2) {
timeout = MMC_BKOPS_MAX_TIMEOUT;
use_busy_signal = true;
} else {
timeout = 0;
use_busy_signal = false;
}
mmc_retune_hold(card->host);
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_BKOPS_START, 1, timeout, 0,
use_busy_signal, true, false);
if (err) {
pr_warn("%s: Error %d starting bkops\n",
mmc_hostname(card->host), err);
mmc_retune_release(card->host);
goto out;
}
/*
* For urgent bkops status (LEVEL_2 and more)
* bkops executed synchronously, otherwise
* the operation is in progress
*/
if (!use_busy_signal)
mmc_card_set_doing_bkops(card);
else
mmc_retune_release(card->host);
out:
mmc_release_host(card->host);
}
EXPORT_SYMBOL(mmc_start_bkops);
/*
* mmc_wait_data_done() - done callback for data request
* @mrq: done data request
@ -748,71 +674,6 @@ void mmc_wait_for_req(struct mmc_host *host, struct mmc_request *mrq)
}
EXPORT_SYMBOL(mmc_wait_for_req);
/**
* mmc_interrupt_hpi - Issue for High priority Interrupt
* @card: the MMC card associated with the HPI transfer
*
* Issued High Priority Interrupt, and check for card status
* until out-of prg-state.
*/
int mmc_interrupt_hpi(struct mmc_card *card)
{
int err;
u32 status;
unsigned long prg_wait;
if (!card->ext_csd.hpi_en) {
pr_info("%s: HPI enable bit unset\n", mmc_hostname(card->host));
return 1;
}
mmc_claim_host(card->host);
err = mmc_send_status(card, &status);
if (err) {
pr_err("%s: Get card status fail\n", mmc_hostname(card->host));
goto out;
}
switch (R1_CURRENT_STATE(status)) {
case R1_STATE_IDLE:
case R1_STATE_READY:
case R1_STATE_STBY:
case R1_STATE_TRAN:
/*
* In idle and transfer states, HPI is not needed and the caller
* can issue the next intended command immediately
*/
goto out;
case R1_STATE_PRG:
break;
default:
/* In all other states, it's illegal to issue HPI */
pr_debug("%s: HPI cannot be sent. Card state=%d\n",
mmc_hostname(card->host), R1_CURRENT_STATE(status));
err = -EINVAL;
goto out;
}
err = mmc_send_hpi_cmd(card, &status);
if (err)
goto out;
prg_wait = jiffies + msecs_to_jiffies(card->ext_csd.out_of_int_time);
do {
err = mmc_send_status(card, &status);
if (!err && R1_CURRENT_STATE(status) == R1_STATE_TRAN)
break;
if (time_after(jiffies, prg_wait))
err = -ETIMEDOUT;
} while (!err);
out:
mmc_release_host(card->host);
return err;
}
EXPORT_SYMBOL(mmc_interrupt_hpi);
/**
* mmc_wait_for_cmd - start a command and wait for completion
* @host: MMC host to start command
@ -842,53 +703,6 @@ int mmc_wait_for_cmd(struct mmc_host *host, struct mmc_command *cmd, int retries
EXPORT_SYMBOL(mmc_wait_for_cmd);
/**
* mmc_stop_bkops - stop ongoing BKOPS
* @card: MMC card to check BKOPS
*
* Send HPI command to stop ongoing background operations to
* allow rapid servicing of foreground operations, e.g. read/
* writes. Wait until the card comes out of the programming state
* to avoid errors in servicing read/write requests.
*/
int mmc_stop_bkops(struct mmc_card *card)
{
int err = 0;
err = mmc_interrupt_hpi(card);
/*
* If err is EINVAL, we can't issue an HPI.
* It should complete the BKOPS.
*/
if (!err || (err == -EINVAL)) {
mmc_card_clr_doing_bkops(card);
mmc_retune_release(card->host);
err = 0;
}
return err;
}
EXPORT_SYMBOL(mmc_stop_bkops);
int mmc_read_bkops_status(struct mmc_card *card)
{
int err;
u8 *ext_csd;
mmc_claim_host(card->host);
err = mmc_get_ext_csd(card, &ext_csd);
mmc_release_host(card->host);
if (err)
return err;
card->ext_csd.raw_bkops_status = ext_csd[EXT_CSD_BKOPS_STATUS];
card->ext_csd.raw_exception_status = ext_csd[EXT_CSD_EXP_EVENTS_STATUS];
kfree(ext_csd);
return 0;
}
EXPORT_SYMBOL(mmc_read_bkops_status);
/**
* mmc_set_data_timeout - set the timeout for a data command
* @data: data phase for command
@ -2597,6 +2411,8 @@ EXPORT_SYMBOL(mmc_set_blockcount);
static void mmc_hw_reset_for_init(struct mmc_host *host)
{
mmc_pwrseq_reset(host);
if (!(host->caps & MMC_CAP_HW_RESET) || !host->ops->hw_reset)
return;
host->ops->hw_reset(host);
@ -2836,8 +2652,11 @@ void mmc_stop_host(struct mmc_host *host)
host->removed = 1;
spin_unlock_irqrestore(&host->lock, flags);
#endif
if (host->slot.cd_irq >= 0)
if (host->slot.cd_irq >= 0) {
if (host->slot.cd_wake_enabled)
disable_irq_wake(host->slot.cd_irq);
disable_irq(host->slot.cd_irq);
}
host->rescan_disable = 1;
cancel_delayed_work_sync(&host->detect);
@ -2913,27 +2732,6 @@ int mmc_power_restore_host(struct mmc_host *host)
}
EXPORT_SYMBOL(mmc_power_restore_host);
/*
* Flush the cache to the non-volatile storage.
*/
int mmc_flush_cache(struct mmc_card *card)
{
int err = 0;
if (mmc_card_mmc(card) &&
(card->ext_csd.cache_size > 0) &&
(card->ext_csd.cache_ctrl & 1)) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_FLUSH_CACHE, 1, 0);
if (err)
pr_err("%s: cache flush error %d\n",
mmc_hostname(card->host), err);
}
return err;
}
EXPORT_SYMBOL(mmc_flush_cache);
#ifdef CONFIG_PM_SLEEP
/* Do the card removal on suspend if card is assumed removeable
* Do that in pm notifier while userspace isn't yet frozen, so we will be able

74
drivers/mmc/core/host.c
View File

@ -30,6 +30,7 @@
#include "host.h"
#include "slot-gpio.h"
#include "pwrseq.h"
#include "sdio_ops.h"
#define cls_dev_to_mmc_host(d) container_of(d, struct mmc_host, class_dev)
@ -176,19 +177,17 @@ static void mmc_retune_timer(unsigned long data)
*/
int mmc_of_parse(struct mmc_host *host)
{
struct device_node *np;
struct device *dev = host->parent;
u32 bus_width;
int ret;
bool cd_cap_invert, cd_gpio_invert = false;
bool ro_cap_invert, ro_gpio_invert = false;
if (!host->parent || !host->parent->of_node)
if (!dev || !dev_fwnode(dev))
return 0;
np = host->parent->of_node;
/* "bus-width" is translated to MMC_CAP_*_BIT_DATA flags */
if (of_property_read_u32(np, "bus-width", &bus_width) < 0) {
if (device_property_read_u32(dev, "bus-width", &bus_width) < 0) {
dev_dbg(host->parent,
"\"bus-width\" property is missing, assuming 1 bit.\n");
bus_width = 1;
@ -210,7 +209,7 @@ int mmc_of_parse(struct mmc_host *host)
}
/* f_max is obtained from the optional "max-frequency" property */
of_property_read_u32(np, "max-frequency", &host->f_max);
device_property_read_u32(dev, "max-frequency", &host->f_max);
/*
* Configure CD and WP pins. They are both by default active low to
@ -225,12 +224,12 @@ int mmc_of_parse(struct mmc_host *host)
*/
/* Parse Card Detection */
if (of_property_read_bool(np, "non-removable")) {
if (device_property_read_bool(dev, "non-removable")) {
host->caps |= MMC_CAP_NONREMOVABLE;
} else {
cd_cap_invert = of_property_read_bool(np, "cd-inverted");
cd_cap_invert = device_property_read_bool(dev, "cd-inverted");
if (of_property_read_bool(np, "broken-cd"))
if (device_property_read_bool(dev, "broken-cd"))
host->caps |= MMC_CAP_NEEDS_POLL;
ret = mmc_gpiod_request_cd(host, "cd", 0, true,
@ -256,7 +255,7 @@ int mmc_of_parse(struct mmc_host *host)
}
/* Parse Write Protection */
ro_cap_invert = of_property_read_bool(np, "wp-inverted");
ro_cap_invert = device_property_read_bool(dev, "wp-inverted");
ret = mmc_gpiod_request_ro(host, "wp", 0, false, 0, &ro_gpio_invert);
if (!ret)
@ -264,64 +263,64 @@ int mmc_of_parse(struct mmc_host *host)
else if (ret != -ENOENT && ret != -ENOSYS)
return ret;
if (of_property_read_bool(np, "disable-wp"))
if (device_property_read_bool(dev, "disable-wp"))
host->caps2 |= MMC_CAP2_NO_WRITE_PROTECT;
/* See the comment on CD inversion above */
if (ro_cap_invert ^ ro_gpio_invert)
host->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
if (of_property_read_bool(np, "cap-sd-highspeed"))
if (device_property_read_bool(dev, "cap-sd-highspeed"))
host->caps |= MMC_CAP_SD_HIGHSPEED;
if (of_property_read_bool(np, "cap-mmc-highspeed"))
if (device_property_read_bool(dev, "cap-mmc-highspeed"))
host->caps |= MMC_CAP_MMC_HIGHSPEED;
if (of_property_read_bool(np, "sd-uhs-sdr12"))
if (device_property_read_bool(dev, "sd-uhs-sdr12"))
host->caps |= MMC_CAP_UHS_SDR12;
if (of_property_read_bool(np, "sd-uhs-sdr25"))
if (device_property_read_bool(dev, "sd-uhs-sdr25"))
host->caps |= MMC_CAP_UHS_SDR25;
if (of_property_read_bool(np, "sd-uhs-sdr50"))
if (device_property_read_bool(dev, "sd-uhs-sdr50"))
host->caps |= MMC_CAP_UHS_SDR50;
if (of_property_read_bool(np, "sd-uhs-sdr104"))
if (device_property_read_bool(dev, "sd-uhs-sdr104"))
host->caps |= MMC_CAP_UHS_SDR104;
if (of_property_read_bool(np, "sd-uhs-ddr50"))
if (device_property_read_bool(dev, "sd-uhs-ddr50"))
host->caps |= MMC_CAP_UHS_DDR50;
if (of_property_read_bool(np, "cap-power-off-card"))
if (device_property_read_bool(dev, "cap-power-off-card"))
host->caps |= MMC_CAP_POWER_OFF_CARD;
if (of_property_read_bool(np, "cap-mmc-hw-reset"))
if (device_property_read_bool(dev, "cap-mmc-hw-reset"))
host->caps |= MMC_CAP_HW_RESET;
if (of_property_read_bool(np, "cap-sdio-irq"))
if (device_property_read_bool(dev, "cap-sdio-irq"))
host->caps |= MMC_CAP_SDIO_IRQ;
if (of_property_read_bool(np, "full-pwr-cycle"))
if (device_property_read_bool(dev, "full-pwr-cycle"))
host->caps2 |= MMC_CAP2_FULL_PWR_CYCLE;
if (of_property_read_bool(np, "keep-power-in-suspend"))
if (device_property_read_bool(dev, "keep-power-in-suspend"))
host->pm_caps |= MMC_PM_KEEP_POWER;
if (of_property_read_bool(np, "wakeup-source") ||
of_property_read_bool(np, "enable-sdio-wakeup")) /* legacy */
if (device_property_read_bool(dev, "wakeup-source") ||
device_property_read_bool(dev, "enable-sdio-wakeup")) /* legacy */
host->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
if (of_property_read_bool(np, "mmc-ddr-3_3v"))
if (device_property_read_bool(dev, "mmc-ddr-3_3v"))
host->caps |= MMC_CAP_3_3V_DDR;
if (of_property_read_bool(np, "mmc-ddr-1_8v"))
if (device_property_read_bool(dev, "mmc-ddr-1_8v"))
host->caps |= MMC_CAP_1_8V_DDR;
if (of_property_read_bool(np, "mmc-ddr-1_2v"))
if (device_property_read_bool(dev, "mmc-ddr-1_2v"))
host->caps |= MMC_CAP_1_2V_DDR;
if (of_property_read_bool(np, "mmc-hs200-1_8v"))
if (device_property_read_bool(dev, "mmc-hs200-1_8v"))
host->caps2 |= MMC_CAP2_HS200_1_8V_SDR;
if (of_property_read_bool(np, "mmc-hs200-1_2v"))
if (device_property_read_bool(dev, "mmc-hs200-1_2v"))
host->caps2 |= MMC_CAP2_HS200_1_2V_SDR;
if (of_property_read_bool(np, "mmc-hs400-1_8v"))
if (device_property_read_bool(dev, "mmc-hs400-1_8v"))
host->caps2 |= MMC_CAP2_HS400_1_8V | MMC_CAP2_HS200_1_8V_SDR;
if (of_property_read_bool(np, "mmc-hs400-1_2v"))
if (device_property_read_bool(dev, "mmc-hs400-1_2v"))
host->caps2 |= MMC_CAP2_HS400_1_2V | MMC_CAP2_HS200_1_2V_SDR;
if (of_property_read_bool(np, "mmc-hs400-enhanced-strobe"))
if (device_property_read_bool(dev, "mmc-hs400-enhanced-strobe"))
host->caps2 |= MMC_CAP2_HS400_ES;
if (of_property_read_bool(np, "no-sdio"))
if (device_property_read_bool(dev, "no-sdio"))
host->caps2 |= MMC_CAP2_NO_SDIO;
if (of_property_read_bool(np, "no-sd"))
if (device_property_read_bool(dev, "no-sd"))
host->caps2 |= MMC_CAP2_NO_SD;
if (of_property_read_bool(np, "no-mmc"))
if (device_property_read_bool(dev, "no-mmc"))
host->caps2 |= MMC_CAP2_NO_MMC;
host->dsr_req = !of_property_read_u32(np, "dsr", &host->dsr);
host->dsr_req = !device_property_read_u32(dev, "dsr", &host->dsr);
if (host->dsr_req && (host->dsr & ~0xffff)) {
dev_err(host->parent,
"device tree specified broken value for DSR: 0x%x, ignoring\n",
@ -379,6 +378,7 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
spin_lock_init(&host->lock);
init_waitqueue_head(&host->wq);
INIT_DELAYED_WORK(&host->detect, mmc_rescan);
INIT_DELAYED_WORK(&host->sdio_irq_work, sdio_irq_work);
setup_timer(&host->retune_timer, mmc_retune_timer, (unsigned long)host);
/*

18
drivers/mmc/core/mmc.c
View File

@ -27,6 +27,7 @@
#include "mmc_ops.h"
#include "quirks.h"
#include "sd_ops.h"
#include "pwrseq.h"
#define DEFAULT_CMD6_TIMEOUT_MS 500
@ -1555,10 +1556,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
/*
* Fetch CID from card.
*/
if (mmc_host_is_spi(host))
err = mmc_send_cid(host, cid);
else
err = mmc_all_send_cid(host, cid);
err = mmc_send_cid(host, cid);
if (err)
goto err;
@ -1653,12 +1651,8 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
mmc_set_erase_size(card);
}
/*
* If enhanced_area_en is TRUE, host needs to enable ERASE_GRP_DEF
* bit. This bit will be lost every time after a reset or power off.
*/
if (card->ext_csd.partition_setting_completed ||
(card->ext_csd.rev >= 3 && (host->caps2 & MMC_CAP2_HC_ERASE_SZ))) {
/* Enable ERASE_GRP_DEF. This bit is lost after a reset or power off. */
if (card->ext_csd.rev >= 3) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_ERASE_GROUP_DEF, 1,
card->ext_csd.generic_cmd6_time);
@ -2096,7 +2090,7 @@ static int mmc_runtime_resume(struct mmc_host *host)
return 0;
}
int mmc_can_reset(struct mmc_card *card)
static int mmc_can_reset(struct mmc_card *card)
{
u8 rst_n_function;
@ -2105,7 +2099,6 @@ int mmc_can_reset(struct mmc_card *card)
return 0;
return 1;
}
EXPORT_SYMBOL(mmc_can_reset);
static int mmc_reset(struct mmc_host *host)
{
@ -2127,6 +2120,7 @@ static int mmc_reset(struct mmc_host *host)
} else {
/* Do a brute force power cycle */
mmc_power_cycle(host, card->ocr);
mmc_pwrseq_reset(host);
}
return mmc_init_card(host, card->ocr, card);
}

260
drivers/mmc/core/mmc_ops.c
View File

@ -19,6 +19,7 @@
#include <linux/mmc/mmc.h>
#include "core.h"
#include "card.h"
#include "host.h"
#include "mmc_ops.h"
@ -54,7 +55,7 @@ static const u8 tuning_blk_pattern_8bit[] = {
0xff, 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee,
};
int mmc_send_status(struct mmc_card *card, u32 *status)
int __mmc_send_status(struct mmc_card *card, u32 *status, unsigned int retries)
{
int err;
struct mmc_command cmd = {};
@ -64,7 +65,7 @@ int mmc_send_status(struct mmc_card *card, u32 *status)
cmd.arg = card->rca << 16;
cmd.flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC;
err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES);
err = mmc_wait_for_cmd(card->host, &cmd, retries);
if (err)
return err;
@ -76,6 +77,12 @@ int mmc_send_status(struct mmc_card *card, u32 *status)
return 0;
}
EXPORT_SYMBOL_GPL(__mmc_send_status);
int mmc_send_status(struct mmc_card *card, u32 *status)
{
return __mmc_send_status(card, status, MMC_CMD_RETRIES);
}
static int _mmc_select_card(struct mmc_host *host, struct mmc_card *card)
{
@ -200,24 +207,6 @@ int mmc_send_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr)
return err;
}
int mmc_all_send_cid(struct mmc_host *host, u32 *cid)
{
int err;
struct mmc_command cmd = {};
cmd.opcode = MMC_ALL_SEND_CID;
cmd.arg = 0;
cmd.flags = MMC_RSP_R2 | MMC_CMD_BCR;
err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
if (err)
return err;
memcpy(cid, cmd.resp, sizeof(u32) * 4);
return 0;
}
int mmc_set_relative_addr(struct mmc_card *card)
{
struct mmc_command cmd = {};
@ -302,15 +291,11 @@ mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host,
return 0;
}
int mmc_send_csd(struct mmc_card *card, u32 *csd)
static int mmc_spi_send_csd(struct mmc_card *card, u32 *csd)
{
int ret, i;
__be32 *csd_tmp;
if (!mmc_host_is_spi(card->host))
return mmc_send_cxd_native(card->host, card->rca << 16,
csd, MMC_SEND_CSD);
csd_tmp = kzalloc(16, GFP_KERNEL);
if (!csd_tmp)
return -ENOMEM;
@ -327,18 +312,20 @@ err:
return ret;
}
int mmc_send_cid(struct mmc_host *host, u32 *cid)
int mmc_send_csd(struct mmc_card *card, u32 *csd)
{
if (mmc_host_is_spi(card->host))
return mmc_spi_send_csd(card, csd);
return mmc_send_cxd_native(card->host, card->rca << 16, csd,
MMC_SEND_CSD);
}
static int mmc_spi_send_cid(struct mmc_host *host, u32 *cid)
{
int ret, i;
__be32 *cid_tmp;
if (!mmc_host_is_spi(host)) {
if (!host->card)
return -EINVAL;
return mmc_send_cxd_native(host, host->card->rca << 16,
cid, MMC_SEND_CID);
}
cid_tmp = kzalloc(16, GFP_KERNEL);
if (!cid_tmp)
return -ENOMEM;
@ -355,6 +342,14 @@ err:
return ret;
}
int mmc_send_cid(struct mmc_host *host, u32 *cid)
{
if (mmc_host_is_spi(host))
return mmc_spi_send_cid(host, cid);
return mmc_send_cxd_native(host, 0, cid, MMC_ALL_SEND_CID);
}
int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd)
{
int err;
@ -800,7 +795,7 @@ int mmc_bus_test(struct mmc_card *card, u8 bus_width)
return mmc_send_bus_test(card, card->host, MMC_BUS_TEST_R, width);
}
int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status)
static int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status)
{
struct mmc_command cmd = {};
unsigned int opcode;
@ -834,11 +829,208 @@ int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status)
return 0;
}
/**
* mmc_interrupt_hpi - Issue for High priority Interrupt
* @card: the MMC card associated with the HPI transfer
*
* Issued High Priority Interrupt, and check for card status
* until out-of prg-state.
*/
int mmc_interrupt_hpi(struct mmc_card *card)
{
int err;
u32 status;
unsigned long prg_wait;
if (!card->ext_csd.hpi_en) {
pr_info("%s: HPI enable bit unset\n", mmc_hostname(card->host));
return 1;
}
mmc_claim_host(card->host);
err = mmc_send_status(card, &status);
if (err) {
pr_err("%s: Get card status fail\n", mmc_hostname(card->host));
goto out;
}
switch (R1_CURRENT_STATE(status)) {
case R1_STATE_IDLE:
case R1_STATE_READY:
case R1_STATE_STBY:
case R1_STATE_TRAN:
/*
* In idle and transfer states, HPI is not needed and the caller
* can issue the next intended command immediately
*/
goto out;
case R1_STATE_PRG:
break;
default:
/* In all other states, it's illegal to issue HPI */
pr_debug("%s: HPI cannot be sent. Card state=%d\n",
mmc_hostname(card->host), R1_CURRENT_STATE(status));
err = -EINVAL;
goto out;
}
err = mmc_send_hpi_cmd(card, &status);
if (err)
goto out;
prg_wait = jiffies + msecs_to_jiffies(card->ext_csd.out_of_int_time);
do {
err = mmc_send_status(card, &status);
if (!err && R1_CURRENT_STATE(status) == R1_STATE_TRAN)
break;
if (time_after(jiffies, prg_wait))
err = -ETIMEDOUT;
} while (!err);
out:
mmc_release_host(card->host);
return err;
}
int mmc_can_ext_csd(struct mmc_card *card)
{
return (card && card->csd.mmca_vsn > CSD_SPEC_VER_3);
}
/**
* mmc_stop_bkops - stop ongoing BKOPS
* @card: MMC card to check BKOPS
*
* Send HPI command to stop ongoing background operations to
* allow rapid servicing of foreground operations, e.g. read/
* writes. Wait until the card comes out of the programming state
* to avoid errors in servicing read/write requests.
*/
int mmc_stop_bkops(struct mmc_card *card)
{
int err = 0;
err = mmc_interrupt_hpi(card);
/*
* If err is EINVAL, we can't issue an HPI.
* It should complete the BKOPS.
*/
if (!err || (err == -EINVAL)) {
mmc_card_clr_doing_bkops(card);
mmc_retune_release(card->host);
err = 0;
}
return err;
}
static int mmc_read_bkops_status(struct mmc_card *card)
{
int err;
u8 *ext_csd;
mmc_claim_host(card->host);
err = mmc_get_ext_csd(card, &ext_csd);
mmc_release_host(card->host);
if (err)
return err;
card->ext_csd.raw_bkops_status = ext_csd[EXT_CSD_BKOPS_STATUS];
card->ext_csd.raw_exception_status = ext_csd[EXT_CSD_EXP_EVENTS_STATUS];
kfree(ext_csd);
return 0;
}
/**
* mmc_start_bkops - start BKOPS for supported cards
* @card: MMC card to start BKOPS
* @form_exception: A flag to indicate if this function was
* called due to an exception raised by the card
*
* Start background operations whenever requested.
* When the urgent BKOPS bit is set in a R1 command response
* then background operations should be started immediately.
*/
void mmc_start_bkops(struct mmc_card *card, bool from_exception)
{
int err;
int timeout;
bool use_busy_signal;
if (!card->ext_csd.man_bkops_en || mmc_card_doing_bkops(card))
return;
err = mmc_read_bkops_status(card);
if (err) {
pr_err("%s: Failed to read bkops status: %d\n",
mmc_hostname(card->host), err);
return;
}
if (!card->ext_csd.raw_bkops_status)
return;
if (card->ext_csd.raw_bkops_status < EXT_CSD_BKOPS_LEVEL_2 &&
from_exception)
return;
mmc_claim_host(card->host);
if (card->ext_csd.raw_bkops_status >= EXT_CSD_BKOPS_LEVEL_2) {
timeout = MMC_OPS_TIMEOUT_MS;
use_busy_signal = true;
} else {
timeout = 0;
use_busy_signal = false;
}
mmc_retune_hold(card->host);
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_BKOPS_START, 1, timeout, 0,
use_busy_signal, true, false);
if (err) {
pr_warn("%s: Error %d starting bkops\n",
mmc_hostname(card->host), err);
mmc_retune_release(card->host);
goto out;
}
/*
* For urgent bkops status (LEVEL_2 and more)
* bkops executed synchronously, otherwise
* the operation is in progress
*/
if (!use_busy_signal)
mmc_card_set_doing_bkops(card);
else
mmc_retune_release(card->host);
out:
mmc_release_host(card->host);
}
/*
* Flush the cache to the non-volatile storage.
*/
int mmc_flush_cache(struct mmc_card *card)
{
int err = 0;
if (mmc_card_mmc(card) &&
(card->ext_csd.cache_size > 0) &&
(card->ext_csd.cache_ctrl & 1)) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_FLUSH_CACHE, 1, 0);
if (err)
pr_err("%s: cache flush error %d\n",
mmc_hostname(card->host), err);
}
return err;
}
EXPORT_SYMBOL(mmc_flush_cache);
static int mmc_cmdq_switch(struct mmc_card *card, bool enable)
{
u8 val = enable ? EXT_CSD_CMDQ_MODE_ENABLED : 0;

5
drivers/mmc/core/mmc_ops.h
View File

@ -22,15 +22,14 @@ int mmc_deselect_cards(struct mmc_host *host);
int mmc_set_dsr(struct mmc_host *host);
int mmc_go_idle(struct mmc_host *host);
int mmc_send_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr);
int mmc_all_send_cid(struct mmc_host *host, u32 *cid);
int mmc_set_relative_addr(struct mmc_card *card);
int mmc_send_csd(struct mmc_card *card, u32 *csd);
int __mmc_send_status(struct mmc_card *card, u32 *status, unsigned int retries);
int mmc_send_status(struct mmc_card *card, u32 *status);
int mmc_send_cid(struct mmc_host *host, u32 *cid);
int mmc_spi_read_ocr(struct mmc_host *host, int highcap, u32 *ocrp);
int mmc_spi_set_crc(struct mmc_host *host, int use_crc);
int mmc_bus_test(struct mmc_card *card, u8 bus_width);
int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status);
int mmc_interrupt_hpi(struct mmc_card *card);
int mmc_can_ext_csd(struct mmc_card *card);
int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd);
@ -42,9 +41,7 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
unsigned int timeout_ms);
int mmc_stop_bkops(struct mmc_card *card);
int mmc_read_bkops_status(struct mmc_card *card);
void mmc_start_bkops(struct mmc_card *card, bool from_exception);
int mmc_can_reset(struct mmc_card *card);
int mmc_flush_cache(struct mmc_card *card);
int mmc_cmdq_enable(struct mmc_card *card);
int mmc_cmdq_disable(struct mmc_card *card);

2
drivers/mmc/core/mmc_test.c
View File

@ -3220,8 +3220,6 @@ static int __mmc_test_register_dbgfs_file(struct mmc_card *card,
df = kmalloc(sizeof(*df), GFP_KERNEL);
if (!df) {
debugfs_remove(file);
dev_err(&card->dev,
"Can't allocate memory for internal usage.\n");
return -ENOMEM;
}

8
drivers/mmc/core/pwrseq.c
View File

@ -76,6 +76,14 @@ void mmc_pwrseq_power_off(struct mmc_host *host)
pwrseq->ops->power_off(host);
}
void mmc_pwrseq_reset(struct mmc_host *host)
{
struct mmc_pwrseq *pwrseq = host->pwrseq;
if (pwrseq && pwrseq->ops->reset)
pwrseq->ops->reset(host);
}
void mmc_pwrseq_free(struct mmc_host *host)
{
struct mmc_pwrseq *pwrseq = host->pwrseq;

3
drivers/mmc/core/pwrseq.h
View File

@ -18,6 +18,7 @@ struct mmc_pwrseq_ops {
void (*pre_power_on)(struct mmc_host *host);
void (*post_power_on)(struct mmc_host *host);
void (*power_off)(struct mmc_host *host);
void (*reset)(struct mmc_host *host);
};
struct mmc_pwrseq {
@ -36,6 +37,7 @@ int mmc_pwrseq_alloc(struct mmc_host *host);
void mmc_pwrseq_pre_power_on(struct mmc_host *host);
void mmc_pwrseq_post_power_on(struct mmc_host *host);
void mmc_pwrseq_power_off(struct mmc_host *host);
void mmc_pwrseq_reset(struct mmc_host *host);
void mmc_pwrseq_free(struct mmc_host *host);
#else
@ -49,6 +51,7 @@ static inline int mmc_pwrseq_alloc(struct mmc_host *host) { return 0; }
static inline void mmc_pwrseq_pre_power_on(struct mmc_host *host) {}
static inline void mmc_pwrseq_post_power_on(struct mmc_host *host) {}
static inline void mmc_pwrseq_power_off(struct mmc_host *host) {}
static inline void mmc_pwrseq_reset(struct mmc_host *host) {}
static inline void mmc_pwrseq_free(struct mmc_host *host) {}
#endif

2
drivers/mmc/core/pwrseq_emmc.c
View File

@ -56,7 +56,7 @@ static int mmc_pwrseq_emmc_reset_nb(struct notifier_block *this,
}
static const struct mmc_pwrseq_ops mmc_pwrseq_emmc_ops = {
.post_power_on = mmc_pwrseq_emmc_reset,
.reset = mmc_pwrseq_emmc_reset,
};
static int mmc_pwrseq_emmc_probe(struct platform_device *pdev)

242
drivers/mmc/core/queue.c
View File

@ -40,35 +40,6 @@ static int mmc_prep_request(struct request_queue *q, struct request *req)
return BLKPREP_OK;
}
struct mmc_queue_req *mmc_queue_req_find(struct mmc_queue *mq,
struct request *req)
{
struct mmc_queue_req *mqrq;
int i = ffz(mq->qslots);
if (i >= mq->qdepth)
return NULL;
mqrq = &mq->mqrq[i];
WARN_ON(mqrq->req || mq->qcnt >= mq->qdepth ||
test_bit(mqrq->task_id, &mq->qslots));
mqrq->req = req;
mq->qcnt += 1;
__set_bit(mqrq->task_id, &mq->qslots);
return mqrq;
}
void mmc_queue_req_free(struct mmc_queue *mq,
struct mmc_queue_req *mqrq)
{
WARN_ON(!mqrq->req || mq->qcnt < 1 ||
!test_bit(mqrq->task_id, &mq->qslots));
mqrq->req = NULL;
mq->qcnt -= 1;
__clear_bit(mqrq->task_id, &mq->qslots);
}
static int mmc_queue_thread(void *d)
{
struct mmc_queue *mq = d;
@ -149,11 +120,11 @@ static void mmc_request_fn(struct request_queue *q)
wake_up_process(mq->thread);
}
static struct scatterlist *mmc_alloc_sg(int sg_len)
static struct scatterlist *mmc_alloc_sg(int sg_len, gfp_t gfp)
{
struct scatterlist *sg;
sg = kmalloc_array(sg_len, sizeof(*sg), GFP_KERNEL);
sg = kmalloc_array(sg_len, sizeof(*sg), gfp);
if (sg)
sg_init_table(sg, sg_len);
@ -179,86 +150,11 @@ static void mmc_queue_setup_discard(struct request_queue *q,
queue_flag_set_unlocked(QUEUE_FLAG_SECERASE, q);
}
static void mmc_queue_req_free_bufs(struct mmc_queue_req *mqrq)
{
kfree(mqrq->bounce_sg);
mqrq->bounce_sg = NULL;
kfree(mqrq->sg);
mqrq->sg = NULL;
kfree(mqrq->bounce_buf);
mqrq->bounce_buf = NULL;
}
static void mmc_queue_reqs_free_bufs(struct mmc_queue_req *mqrq, int qdepth)
{
int i;
for (i = 0; i < qdepth; i++)
mmc_queue_req_free_bufs(&mqrq[i]);
}
static void mmc_queue_free_mqrqs(struct mmc_queue_req *mqrq, int qdepth)
{
mmc_queue_reqs_free_bufs(mqrq, qdepth);
kfree(mqrq);
}
static struct mmc_queue_req *mmc_queue_alloc_mqrqs(int qdepth)
{
struct mmc_queue_req *mqrq;
int i;
mqrq = kcalloc(qdepth, sizeof(*mqrq), GFP_KERNEL);
if (mqrq) {
for (i = 0; i < qdepth; i++)
mqrq[i].task_id = i;
}
return mqrq;
}
#ifdef CONFIG_MMC_BLOCK_BOUNCE
static int mmc_queue_alloc_bounce_bufs(struct mmc_queue_req *mqrq, int qdepth,
unsigned int bouncesz)
{
int i;
for (i = 0; i < qdepth; i++) {
mqrq[i].bounce_buf = kmalloc(bouncesz, GFP_KERNEL);
if (!mqrq[i].bounce_buf)
return -ENOMEM;
mqrq[i].sg = mmc_alloc_sg(1);
if (!mqrq[i].sg)
return -ENOMEM;
mqrq[i].bounce_sg = mmc_alloc_sg(bouncesz / 512);
if (!mqrq[i].bounce_sg)
return -ENOMEM;
}
return 0;
}
static bool mmc_queue_alloc_bounce(struct mmc_queue_req *mqrq, int qdepth,
unsigned int bouncesz)
{
int ret;
ret = mmc_queue_alloc_bounce_bufs(mqrq, qdepth, bouncesz);
if (ret)
mmc_queue_reqs_free_bufs(mqrq, qdepth);
return !ret;
}
static unsigned int mmc_queue_calc_bouncesz(struct mmc_host *host)
{
unsigned int bouncesz = MMC_QUEUE_BOUNCESZ;
if (host->max_segs != 1)
if (host->max_segs != 1 || (host->caps & MMC_CAP_NO_BOUNCE_BUFF))
return 0;
if (bouncesz > host->max_req_size)
@ -273,84 +169,58 @@ static unsigned int mmc_queue_calc_bouncesz(struct mmc_host *host)
return bouncesz;
}
#else
static inline bool mmc_queue_alloc_bounce(struct mmc_queue_req *mqrq,
int qdepth, unsigned int bouncesz)
{
return false;
}
static unsigned int mmc_queue_calc_bouncesz(struct mmc_host *host)
/**
* mmc_init_request() - initialize the MMC-specific per-request data
* @q: the request queue
* @req: the request
* @gfp: memory allocation policy
*/
static int mmc_init_request(struct request_queue *q, struct request *req,
gfp_t gfp)
{
return 0;
}
#endif
struct mmc_queue_req *mq_rq = req_to_mmc_queue_req(req);
struct mmc_queue *mq = q->queuedata;
struct mmc_card *card = mq->card;
struct mmc_host *host = card->host;
static int mmc_queue_alloc_sgs(struct mmc_queue_req *mqrq, int qdepth,
int max_segs)
{
int i;
for (i = 0; i < qdepth; i++) {
mqrq[i].sg = mmc_alloc_sg(max_segs);
if (!mqrq[i].sg)
if (card->bouncesz) {
mq_rq->bounce_buf = kmalloc(card->bouncesz, gfp);
if (!mq_rq->bounce_buf)
return -ENOMEM;
if (card->bouncesz > 512) {
mq_rq->sg = mmc_alloc_sg(1, gfp);
if (!mq_rq->sg)
return -ENOMEM;
mq_rq->bounce_sg = mmc_alloc_sg(card->bouncesz / 512,
gfp);
if (!mq_rq->bounce_sg)
return -ENOMEM;
}
} else {
mq_rq->bounce_buf = NULL;
mq_rq->bounce_sg = NULL;
mq_rq->sg = mmc_alloc_sg(host->max_segs, gfp);
if (!mq_rq->sg)
return -ENOMEM;
}
return 0;
}
void mmc_queue_free_shared_queue(struct mmc_card *card)
static void mmc_exit_request(struct request_queue *q, struct request *req)
{
if (card->mqrq) {
mmc_queue_free_mqrqs(card->mqrq, card->qdepth);
card->mqrq = NULL;
}
}
struct mmc_queue_req *mq_rq = req_to_mmc_queue_req(req);
static int __mmc_queue_alloc_shared_queue(struct mmc_card *card, int qdepth)
{
struct mmc_host *host = card->host;
struct mmc_queue_req *mqrq;
unsigned int bouncesz;
int ret = 0;
/* It is OK to kfree(NULL) so this will be smooth */
kfree(mq_rq->bounce_sg);
mq_rq->bounce_sg = NULL;
if (card->mqrq)
return -EINVAL;
kfree(mq_rq->bounce_buf);
mq_rq->bounce_buf = NULL;
mqrq = mmc_queue_alloc_mqrqs(qdepth);
if (!mqrq)
return -ENOMEM;
card->mqrq = mqrq;
card->qdepth = qdepth;
bouncesz = mmc_queue_calc_bouncesz(host);
if (bouncesz && !mmc_queue_alloc_bounce(mqrq, qdepth, bouncesz)) {
bouncesz = 0;
pr_warn("%s: unable to allocate bounce buffers\n",
mmc_card_name(card));
}
card->bouncesz = bouncesz;
if (!bouncesz) {
ret = mmc_queue_alloc_sgs(mqrq, qdepth, host->max_segs);
if (ret)
goto out_err;
}
return ret;
out_err:
mmc_queue_free_shared_queue(card);
return ret;
}
int mmc_queue_alloc_shared_queue(struct mmc_card *card)
{
return __mmc_queue_alloc_shared_queue(card, 2);
kfree(mq_rq->sg);
mq_rq->sg = NULL;
}
/**
@ -373,13 +243,21 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
limit = (u64)dma_max_pfn(mmc_dev(host)) << PAGE_SHIFT;
mq->card = card;
mq->queue = blk_init_queue(mmc_request_fn, lock);
mq->queue = blk_alloc_queue(GFP_KERNEL);
if (!mq->queue)
return -ENOMEM;
mq->mqrq = card->mqrq;
mq->qdepth = card->qdepth;
mq->queue->queue_lock = lock;
mq->queue->request_fn = mmc_request_fn;
mq->queue->init_rq_fn = mmc_init_request;
mq->queue->exit_rq_fn = mmc_exit_request;
mq->queue->cmd_size = sizeof(struct mmc_queue_req);
mq->queue->queuedata = mq;
mq->qcnt = 0;
ret = blk_init_allocated_queue(mq->queue);
if (ret) {
blk_cleanup_queue(mq->queue);
return ret;
}
blk_queue_prep_rq(mq->queue, mmc_prep_request);
queue_flag_set_unlocked(QUEUE_FLAG_NONROT, mq->queue);
@ -387,6 +265,7 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
if (mmc_can_erase(card))
mmc_queue_setup_discard(mq->queue, card);
card->bouncesz = mmc_queue_calc_bouncesz(host);
if (card->bouncesz) {
blk_queue_max_hw_sectors(mq->queue, card->bouncesz / 512);
blk_queue_max_segments(mq->queue, card->bouncesz / 512);
@ -412,7 +291,6 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
return 0;
cleanup_queue:
mq->mqrq = NULL;
blk_cleanup_queue(mq->queue);
return ret;
}
@ -434,7 +312,6 @@ void mmc_cleanup_queue(struct mmc_queue *mq)
blk_start_queue(q);
spin_unlock_irqrestore(q->queue_lock, flags);
mq->mqrq = NULL;
mq->card = NULL;
}
EXPORT_SYMBOL(mmc_cleanup_queue);
@ -491,12 +368,13 @@ unsigned int mmc_queue_map_sg(struct mmc_queue *mq, struct mmc_queue_req *mqrq)
unsigned int sg_len;
size_t buflen;
struct scatterlist *sg;
struct request *req = mmc_queue_req_to_req(mqrq);
int i;
if (!mqrq->bounce_buf)
return blk_rq_map_sg(mq->queue, mqrq->req, mqrq->sg);
return blk_rq_map_sg(mq->queue, req, mqrq->sg);
sg_len = blk_rq_map_sg(mq->queue, mqrq->req, mqrq->bounce_sg);
sg_len = blk_rq_map_sg(mq->queue, req, mqrq->bounce_sg);
mqrq->bounce_sg_len = sg_len;
@ -518,7 +396,7 @@ void mmc_queue_bounce_pre(struct mmc_queue_req *mqrq)
if (!mqrq->bounce_buf)
return;
if (rq_data_dir(mqrq->req) != WRITE)
if (rq_data_dir(mmc_queue_req_to_req(mqrq)) != WRITE)
return;
sg_copy_to_buffer(mqrq->bounce_sg, mqrq->bounce_sg_len,
@ -534,7 +412,7 @@ void mmc_queue_bounce_post(struct mmc_queue_req *mqrq)
if (!mqrq->bounce_buf)
return;
if (rq_data_dir(mqrq->req) != READ)
if (rq_data_dir(mmc_queue_req_to_req(mqrq)) != READ)
return;
sg_copy_from_buffer(mqrq->bounce_sg, mqrq->bounce_sg_len,

47
drivers/mmc/core/queue.h
View File

@ -3,19 +3,25 @@
#include <linux/types.h>
#include <linux/blkdev.h>
#include <linux/blk-mq.h>
#include <linux/mmc/core.h>
#include <linux/mmc/host.h>
static inline bool mmc_req_is_special(struct request *req)
static inline struct mmc_queue_req *req_to_mmc_queue_req(struct request *rq)
{
return req &&
(req_op(req) == REQ_OP_FLUSH ||
req_op(req) == REQ_OP_DISCARD ||
req_op(req) == REQ_OP_SECURE_ERASE);
return blk_mq_rq_to_pdu(rq);
}
struct mmc_queue_req;
static inline struct request *mmc_queue_req_to_req(struct mmc_queue_req *mqr)
{
return blk_mq_rq_from_pdu(mqr);
}
struct task_struct;
struct mmc_blk_data;
struct mmc_blk_ioc_data;
struct mmc_blk_request {
struct mmc_request mrq;
@ -26,15 +32,27 @@ struct mmc_blk_request {
int retune_retry_done;
};
/**
* enum mmc_drv_op - enumerates the operations in the mmc_queue_req
* @MMC_DRV_OP_IOCTL: ioctl operation
* @MMC_DRV_OP_BOOT_WP: write protect boot partitions
*/
enum mmc_drv_op {
MMC_DRV_OP_IOCTL,
MMC_DRV_OP_BOOT_WP,
};
struct mmc_queue_req {
struct request *req;
struct mmc_blk_request brq;
struct scatterlist *sg;
char *bounce_buf;
struct scatterlist *bounce_sg;
unsigned int bounce_sg_len;
struct mmc_async_req areq;
int task_id;
enum mmc_drv_op drv_op;
int drv_op_result;
struct mmc_blk_ioc_data **idata;
unsigned int ioc_count;
};
struct mmc_queue {
@ -45,14 +63,15 @@ struct mmc_queue {
bool asleep;
struct mmc_blk_data *blkdata;
struct request_queue *queue;
struct mmc_queue_req *mqrq;
int qdepth;
/*
* FIXME: this counter is not a very reliable way of keeping
* track of how many requests that are ongoing. Switch to just
* letting the block core keep track of requests and per-request
* associated mmc_queue_req data.
*/
int qcnt;
unsigned long qslots;
};
extern int mmc_queue_alloc_shared_queue(struct mmc_card *card);
extern void mmc_queue_free_shared_queue(struct mmc_card *card);
extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *,
const char *);
extern void mmc_cleanup_queue(struct mmc_queue *);
@ -66,8 +85,4 @@ extern void mmc_queue_bounce_post(struct mmc_queue_req *);
extern int mmc_access_rpmb(struct mmc_queue *);
extern struct mmc_queue_req *mmc_queue_req_find(struct mmc_queue *,
struct request *);
extern void mmc_queue_req_free(struct mmc_queue *, struct mmc_queue_req *);
#endif

22
drivers/mmc/core/sd.c
View File

@ -294,12 +294,8 @@ static int mmc_read_switch(struct mmc_card *card)
err = -EIO;
status = kmalloc(64, GFP_KERNEL);
if (!status) {
pr_err("%s: could not allocate a buffer for "
"switch capabilities.\n",
mmc_hostname(card->host));
if (!status)
return -ENOMEM;
}
/*
* Find out the card's support bits with a mode 0 operation.
@ -359,11 +355,8 @@ int mmc_sd_switch_hs(struct mmc_card *card)
return 0;
status = kmalloc(64, GFP_KERNEL);
if (!status) {
pr_err("%s: could not allocate a buffer for "
"switch capabilities.\n", mmc_hostname(card->host));
if (!status)
return -ENOMEM;
}
err = mmc_sd_switch(card, 1, 0, 1, status);
if (err)
@ -596,11 +589,8 @@ static int mmc_sd_init_uhs_card(struct mmc_card *card)
return 0;
status = kmalloc(64, GFP_KERNEL);
if (!status) {
pr_err("%s: could not allocate a buffer for "
"switch capabilities.\n", mmc_hostname(card->host));
if (!status)
return -ENOMEM;
}
/* Set 4-bit bus width */
if ((card->host->caps & MMC_CAP_4_BIT_DATA) &&
@ -798,11 +788,7 @@ try_again:
}
}
if (mmc_host_is_spi(host))
err = mmc_send_cid(host, cid);
else
err = mmc_all_send_cid(host, cid);
err = mmc_send_cid(host, cid);
return err;
}

24
drivers/mmc/core/sdio.c
View File

@ -1103,6 +1103,12 @@ int mmc_attach_sdio(struct mmc_host *host)
* Enable runtime PM only if supported by host+card+board
*/
if (host->caps & MMC_CAP_POWER_OFF_CARD) {
/*
* Do not allow runtime suspend until after SDIO function
* devices are added.
*/
pm_runtime_get_noresume(&card->dev);
/*
* Let runtime PM core know our card is active
*/
@ -1155,19 +1161,23 @@ int mmc_attach_sdio(struct mmc_host *host)
goto remove_added;
}
if (host->caps & MMC_CAP_POWER_OFF_CARD)
pm_runtime_put(&card->dev);
mmc_claim_host(host);
return 0;
remove_added:
/* Remove without lock if the device has been added. */
mmc_sdio_remove(host);
mmc_claim_host(host);
remove:
/* And with lock if it hasn't been added. */
mmc_release_host(host);
if (host->card)
mmc_sdio_remove(host);
remove_added:
/*
* The devices are being deleted so it is not necessary to disable
* runtime PM. Similarly we also don't pm_runtime_put() the SDIO card
* because it needs to be active to remove any function devices that
* were probed, and after that it gets deleted.
*/
mmc_sdio_remove(host);
mmc_claim_host(host);
err:
mmc_detach_bus(host);

22
drivers/mmc/core/sdio_irq.c
View File

@ -95,12 +95,30 @@ static int process_sdio_pending_irqs(struct mmc_host *host)
void sdio_run_irqs(struct mmc_host *host)
{
mmc_claim_host(host);
host->sdio_irq_pending = true;
process_sdio_pending_irqs(host);
if (host->sdio_irqs) {
host->sdio_irq_pending = true;
process_sdio_pending_irqs(host);
if (host->ops->ack_sdio_irq)
host->ops->ack_sdio_irq(host);
}
mmc_release_host(host);
}
EXPORT_SYMBOL_GPL(sdio_run_irqs);
void sdio_irq_work(struct work_struct *work)
{
struct mmc_host *host =
container_of(work, struct mmc_host, sdio_irq_work.work);
sdio_run_irqs(host);
}
void sdio_signal_irq(struct mmc_host *host)
{
queue_delayed_work(system_wq, &host->sdio_irq_work, 0);
}
EXPORT_SYMBOL_GPL(sdio_signal_irq);
static int sdio_irq_thread(void *_host)
{
struct mmc_host *host = _host;

2
drivers/mmc/core/sdio_ops.h
View File

@ -17,6 +17,7 @@
struct mmc_host;
struct mmc_card;
struct work_struct;
int mmc_send_io_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr);
int mmc_io_rw_direct(struct mmc_card *card, int write, unsigned fn,
@ -25,6 +26,7 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
unsigned addr, int incr_addr, u8 *buf, unsigned blocks, unsigned blksz);
int sdio_reset(struct mmc_host *host);
unsigned int mmc_align_data_size(struct mmc_card *card, unsigned int sz);
void sdio_irq_work(struct work_struct *work);
static inline bool sdio_is_io_busy(u32 opcode, u32 arg)
{

2
drivers/mmc/core/slot-gpio.c
View File

@ -151,6 +151,8 @@ void mmc_gpiod_request_cd_irq(struct mmc_host *host)
if (irq < 0)
host->caps |= MMC_CAP_NEEDS_POLL;
else if ((host->caps & MMC_CAP_CD_WAKE) && !enable_irq_wake(irq))
host->slot.cd_wake_enabled = true;
}
EXPORT_SYMBOL(mmc_gpiod_request_cd_irq);

12
drivers/mmc/host/Kconfig
View File

@ -408,11 +408,11 @@ config MMC_AU1X
config MMC_ATMELMCI
tristate "Atmel SD/MMC Driver (Multimedia Card Interface)"
depends on AVR32 || ARCH_AT91
depends on ARCH_AT91
help
This selects the Atmel Multimedia Card Interface driver. If
you have an AT32 (AVR32) or AT91 platform with a Multimedia
Card slot, say Y or M here.
This selects the Atmel Multimedia Card Interface driver.
If you have an AT91 platform with a Multimedia Card slot,
say Y or M here.
If unsure, say N.
@ -571,13 +571,13 @@ config MMC_TMIO
T7L66XB and also HTC ASIC3
config MMC_SDHI
tristate "SH-Mobile SDHI SD/SDIO controller support"
tristate "Renesas SDHI SD/SDIO controller support"
depends on SUPERH || ARM || ARM64
depends on SUPERH || ARCH_RENESAS || COMPILE_TEST
select MMC_TMIO_CORE
help
This provides support for the SDHI SD/SDIO controller found in
SuperH and ARM SH-Mobile SoCs
Renesas SuperH, ARM and ARM64 based SoCs
config MMC_CB710
tristate "ENE CB710 MMC/SD Interface support"

4
drivers/mmc/host/Makefile
View File

@ -36,9 +36,7 @@ obj-$(CONFIG_MMC_S3C) += s3cmci.o
obj-$(CONFIG_MMC_SDRICOH_CS) += sdricoh_cs.o
obj-$(CONFIG_MMC_TMIO) += tmio_mmc.o
obj-$(CONFIG_MMC_TMIO_CORE) += tmio_mmc_core.o
tmio_mmc_core-y := tmio_mmc_pio.o
tmio_mmc_core-$(subst m,y,$(CONFIG_MMC_SDHI)) += tmio_mmc_dma.o
obj-$(CONFIG_MMC_SDHI) += sh_mobile_sdhi.o
obj-$(CONFIG_MMC_SDHI) += renesas_sdhi_core.o renesas_sdhi_sys_dmac.o
obj-$(CONFIG_MMC_CB710) += cb710-mmc.o
obj-$(CONFIG_MMC_VIA_SDMMC) += via-sdmmc.o
obj-$(CONFIG_SDH_BFIN) += bfin_sdh.o

28
drivers/mmc/host/atmel-mci.c
View File

@ -44,7 +44,7 @@
#include <asm/unaligned.h>
/*
* Superset of MCI IP registers integrated in Atmel AVR32 and AT91 Processors
* Superset of MCI IP registers integrated in Atmel AT91 Processor
* Registers and bitfields marked with [2] are only available in MCI2
*/
@ -172,13 +172,6 @@
#define atmci_writel(port, reg, value) \
__raw_writel((value), (port)->regs + reg)
/* On AVR chips the Peripheral DMA Controller is not connected to MCI. */
#ifdef CONFIG_AVR32
# define ATMCI_PDC_CONNECTED 0
#else
# define ATMCI_PDC_CONNECTED 1
#endif
#define AUTOSUSPEND_DELAY 50
#define ATMCI_DATA_ERROR_FLAGS (ATMCI_DCRCE | ATMCI_DTOE | ATMCI_OVRE | ATMCI_UNRE)
@ -667,10 +660,8 @@ atmci_of_init(struct platform_device *pdev)
}
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata) {
dev_err(&pdev->dev, "could not allocate memory for pdata\n");
if (!pdata)
return ERR_PTR(-ENOMEM);
}
for_each_child_of_node(np, cnp) {
if (of_property_read_u32(cnp, "reg", &slot_id)) {
@ -1549,21 +1540,8 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd);
break;
default:
/*
* TODO: None of the currently available AVR32-based
* boards allow MMC power to be turned off. Implement
* power control when this can be tested properly.
*
* We also need to hook this into the clock management
* somehow so that newly inserted cards aren't
* subjected to a fast clock before we have a chance
* to figure out what the maximum rate is. Currently,
* there's no way to avoid this, and there never will
* be for boards that don't support power control.
*/
break;
}
}
static int atmci_get_ro(struct mmc_host *mmc)
@ -2464,7 +2442,7 @@ static void atmci_get_cap(struct atmel_mci *host)
"version: 0x%x\n", version);
host->caps.has_dma_conf_reg = 0;
host->caps.has_pdc = ATMCI_PDC_CONNECTED;
host->caps.has_pdc = 1;
host->caps.has_cfg_reg = 0;
host->caps.has_cstor_reg = 0;
host->caps.has_highspeed = 0;

12
drivers/mmc/host/bcm2835.c
View File

@ -1172,7 +1172,10 @@ static void bcm2835_request(struct mmc_host *mmc, struct mmc_request *mrq)
if (mrq->data && !is_power_of_2(mrq->data->blksz)) {
dev_err(dev, "unsupported block size (%d bytes)\n",
mrq->data->blksz);
mrq->cmd->error = -EINVAL;
if (mrq->cmd)
mrq->cmd->error = -EINVAL;
mmc_request_done(mmc, mrq);
return;
}
@ -1194,7 +1197,10 @@ static void bcm2835_request(struct mmc_host *mmc, struct mmc_request *mrq)
readl(host->ioaddr + SDCMD) & SDCMD_CMD_MASK,
edm);
bcm2835_dumpregs(host);
mrq->cmd->error = -EILSEQ;
if (mrq->cmd)
mrq->cmd->error = -EILSEQ;
bcm2835_finish_request(host);
mutex_unlock(&host->mutex);
return;
@ -1207,7 +1213,7 @@ static void bcm2835_request(struct mmc_host *mmc, struct mmc_request *mrq)
if (!host->use_busy)
bcm2835_finish_command(host);
}
} else if (bcm2835_send_command(host, mrq->cmd)) {
} else if (mrq->cmd && bcm2835_send_command(host, mrq->cmd)) {
if (host->data && host->dma_desc) {
/* DMA transfer starts now, PIO starts after irq */
bcm2835_start_dma(host);

4
drivers/mmc/host/cavium.c
View File

@ -1035,10 +1035,12 @@ int cvm_mmc_of_slot_probe(struct device *dev, struct cvm_mmc_host *host)
* We only have a 3.3v supply, we cannot support any
* of the UHS modes. We do support the high speed DDR
* modes up to 52MHz.
*
* Disable bounce buffers for max_segs = 1
*/
mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
MMC_CAP_ERASE | MMC_CAP_CMD23 | MMC_CAP_POWER_OFF_CARD |
MMC_CAP_3_3V_DDR;
MMC_CAP_3_3V_DDR | MMC_CAP_NO_BOUNCE_BUFF;
if (host->use_sg)
mmc->max_segs = 16;

4
drivers/mmc/host/dw_mmc-exynos.c
View File

@ -157,8 +157,8 @@ static void dw_mci_exynos_set_clksel_timing(struct dw_mci *host, u32 timing)
* HOLD register should be bypassed in case there is no phase shift
* applied on CMD/DATA that is sent to the card.
*/
if (!SDMMC_CLKSEL_GET_DRV_WD3(clksel) && host->cur_slot)
set_bit(DW_MMC_CARD_NO_USE_HOLD, &host->cur_slot->flags);
if (!SDMMC_CLKSEL_GET_DRV_WD3(clksel) && host->slot)
set_bit(DW_MMC_CARD_NO_USE_HOLD, &host->slot->flags);
}
#ifdef CONFIG_PM

48
drivers/mmc/host/dw_mmc-rockchip.c
View File

@ -25,6 +25,7 @@ struct dw_mci_rockchip_priv_data {
struct clk *drv_clk;
struct clk *sample_clk;
int default_sample_phase;
int num_phases;
};
static void dw_mci_rk3288_set_ios(struct dw_mci *host, struct mmc_ios *ios)
@ -133,8 +134,8 @@ static void dw_mci_rk3288_set_ios(struct dw_mci *host, struct mmc_ios *ios)
}
}
#define NUM_PHASES 360
#define TUNING_ITERATION_TO_PHASE(i) (DIV_ROUND_UP((i) * 360, NUM_PHASES))
#define TUNING_ITERATION_TO_PHASE(i, num_phases) \
(DIV_ROUND_UP((i) * 360, num_phases))
static int dw_mci_rk3288_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
{
@ -159,13 +160,15 @@ static int dw_mci_rk3288_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
return -EIO;
}
ranges = kmalloc_array(NUM_PHASES / 2 + 1, sizeof(*ranges), GFP_KERNEL);
ranges = kmalloc_array(priv->num_phases / 2 + 1,
sizeof(*ranges), GFP_KERNEL);
if (!ranges)
return -ENOMEM;
/* Try each phase and extract good ranges */
for (i = 0; i < NUM_PHASES; ) {
clk_set_phase(priv->sample_clk, TUNING_ITERATION_TO_PHASE(i));
for (i = 0; i < priv->num_phases; ) {
clk_set_phase(priv->sample_clk,
TUNING_ITERATION_TO_PHASE(i, priv->num_phases));
v = !mmc_send_tuning(mmc, opcode, NULL);
@ -179,7 +182,7 @@ static int dw_mci_rk3288_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
if (v) {
ranges[range_count-1].end = i;
i++;
} else if (i == NUM_PHASES - 1) {
} else if (i == priv->num_phases - 1) {
/* No extra skipping rules if we're at the end */
i++;
} else {
@ -188,11 +191,11 @@ static int dw_mci_rk3288_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
* one since testing bad phases is slow. Skip
* 20 degrees.
*/
i += DIV_ROUND_UP(20 * NUM_PHASES, 360);
i += DIV_ROUND_UP(20 * priv->num_phases, 360);
/* Always test the last one */
if (i >= NUM_PHASES)
i = NUM_PHASES - 1;
if (i >= priv->num_phases)
i = priv->num_phases - 1;
}
prev_v = v;
@ -210,7 +213,7 @@ static int dw_mci_rk3288_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
range_count--;
}
if (ranges[0].start == 0 && ranges[0].end == NUM_PHASES - 1) {
if (ranges[0].start == 0 && ranges[0].end == priv->num_phases - 1) {
clk_set_phase(priv->sample_clk, priv->default_sample_phase);
dev_info(host->dev, "All phases work, using default phase %d.",
priv->default_sample_phase);
@ -222,7 +225,7 @@ static int dw_mci_rk3288_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
int len = (ranges[i].end - ranges[i].start + 1);
if (len < 0)
len += NUM_PHASES;
len += priv->num_phases;
if (longest_range_len < len) {
longest_range_len = len;
@ -230,25 +233,30 @@ static int dw_mci_rk3288_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
}
dev_dbg(host->dev, "Good phase range %d-%d (%d len)\n",
TUNING_ITERATION_TO_PHASE(ranges[i].start),
TUNING_ITERATION_TO_PHASE(ranges[i].end),
TUNING_ITERATION_TO_PHASE(ranges[i].start,
priv->num_phases),
TUNING_ITERATION_TO_PHASE(ranges[i].end,
priv->num_phases),
len
);
}
dev_dbg(host->dev, "Best phase range %d-%d (%d len)\n",
TUNING_ITERATION_TO_PHASE(ranges[longest_range].start),
TUNING_ITERATION_TO_PHASE(ranges[longest_range].end),
TUNING_ITERATION_TO_PHASE(ranges[longest_range].start,
priv->num_phases),
TUNING_ITERATION_TO_PHASE(ranges[longest_range].end,
priv->num_phases),
longest_range_len
);
middle_phase = ranges[longest_range].start + longest_range_len / 2;
middle_phase %= NUM_PHASES;
middle_phase %= priv->num_phases;
dev_info(host->dev, "Successfully tuned phase to %d\n",
TUNING_ITERATION_TO_PHASE(middle_phase));
TUNING_ITERATION_TO_PHASE(middle_phase, priv->num_phases));
clk_set_phase(priv->sample_clk,
TUNING_ITERATION_TO_PHASE(middle_phase));
TUNING_ITERATION_TO_PHASE(middle_phase,
priv->num_phases));
free:
kfree(ranges);
@ -264,6 +272,10 @@ static int dw_mci_rk3288_parse_dt(struct dw_mci *host)
if (!priv)
return -ENOMEM;
if (of_property_read_u32(np, "rockchip,desired-num-phases",
&priv->num_phases))
priv->num_phases = 360;
if (of_property_read_u32(np, "rockchip,default-sample-phase",
&priv->default_sample_phase))
priv->default_sample_phase = 0;

225
drivers/mmc/host/dw_mmc.c
View File

@ -392,7 +392,7 @@ static u32 dw_mci_prep_stop_abort(struct dw_mci *host, struct mmc_command *cmd)
cmdr = stop->opcode | SDMMC_CMD_STOP |
SDMMC_CMD_RESP_CRC | SDMMC_CMD_RESP_EXP;
if (!test_bit(DW_MMC_CARD_NO_USE_HOLD, &host->cur_slot->flags))
if (!test_bit(DW_MMC_CARD_NO_USE_HOLD, &host->slot->flags))
cmdr |= SDMMC_CMD_USE_HOLD_REG;
return cmdr;
@ -480,7 +480,7 @@ static void dw_mci_dmac_complete_dma(void *arg)
if ((host->use_dma == TRANS_MODE_EDMAC) &&
data && (data->flags & MMC_DATA_READ))
/* Invalidate cache after read */
dma_sync_sg_for_cpu(mmc_dev(host->cur_slot->mmc),
dma_sync_sg_for_cpu(mmc_dev(host->slot->mmc),
data->sg,
data->sg_len,
DMA_FROM_DEVICE);
@ -820,7 +820,7 @@ static int dw_mci_edmac_start_dma(struct dw_mci *host,
/* Flush cache before write */
if (host->data->flags & MMC_DATA_WRITE)
dma_sync_sg_for_device(mmc_dev(host->cur_slot->mmc), sgl,
dma_sync_sg_for_device(mmc_dev(host->slot->mmc), sgl,
sg_elems, DMA_TO_DEVICE);
dma_async_issue_pending(host->dms->ch);
@ -1282,7 +1282,6 @@ static void __dw_mci_start_request(struct dw_mci *host,
mrq = slot->mrq;
host->cur_slot = slot;
host->mrq = mrq;
host->pending_events = 0;
@ -1621,16 +1620,10 @@ static void dw_mci_init_card(struct mmc_host *mmc, struct mmc_card *card)
if (card->type == MMC_TYPE_SDIO ||
card->type == MMC_TYPE_SD_COMBO) {
if (!test_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags)) {
pm_runtime_get_noresume(mmc->parent);
set_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
}
set_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
clk_en_a = clk_en_a_old & ~clken_low_pwr;
} else {
if (test_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags)) {
pm_runtime_put_noidle(mmc->parent);
clear_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
}
clear_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
clk_en_a = clk_en_a_old | clken_low_pwr;
}
@ -1642,9 +1635,8 @@ static void dw_mci_init_card(struct mmc_host *mmc, struct mmc_card *card)
}
}
static void dw_mci_enable_sdio_irq(struct mmc_host *mmc, int enb)
static void __dw_mci_enable_sdio_irq(struct dw_mci_slot *slot, int enb)
{
struct dw_mci_slot *slot = mmc_priv(mmc);
struct dw_mci *host = slot->host;
unsigned long irqflags;
u32 int_mask;
@ -1662,6 +1654,27 @@ static void dw_mci_enable_sdio_irq(struct mmc_host *mmc, int enb)
spin_unlock_irqrestore(&host->irq_lock, irqflags);
}
static void dw_mci_enable_sdio_irq(struct mmc_host *mmc, int enb)
{
struct dw_mci_slot *slot = mmc_priv(mmc);
struct dw_mci *host = slot->host;
__dw_mci_enable_sdio_irq(slot, enb);
/* Avoid runtime suspending the device when SDIO IRQ is enabled */
if (enb)
pm_runtime_get_noresume(host->dev);
else
pm_runtime_put_noidle(host->dev);
}
static void dw_mci_ack_sdio_irq(struct mmc_host *mmc)
{
struct dw_mci_slot *slot = mmc_priv(mmc);
__dw_mci_enable_sdio_irq(slot, 1);
}
static int dw_mci_execute_tuning(struct mmc_host *mmc, u32 opcode)
{
struct dw_mci_slot *slot = mmc_priv(mmc);
@ -1749,7 +1762,7 @@ static bool dw_mci_reset(struct dw_mci *host)
ciu_out:
/* After a CTRL reset we need to have CIU set clock registers */
mci_send_cmd(host->cur_slot, SDMMC_CMD_UPD_CLK, 0);
mci_send_cmd(host->slot, SDMMC_CMD_UPD_CLK, 0);
return ret;
}
@ -1763,6 +1776,7 @@ static const struct mmc_host_ops dw_mci_ops = {
.get_cd = dw_mci_get_cd,
.hw_reset = dw_mci_hw_reset,
.enable_sdio_irq = dw_mci_enable_sdio_irq,
.ack_sdio_irq = dw_mci_ack_sdio_irq,
.execute_tuning = dw_mci_execute_tuning,
.card_busy = dw_mci_card_busy,
.start_signal_voltage_switch = dw_mci_switch_voltage,
@ -1775,11 +1789,11 @@ static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq)
__acquires(&host->lock)
{
struct dw_mci_slot *slot;
struct mmc_host *prev_mmc = host->cur_slot->mmc;
struct mmc_host *prev_mmc = host->slot->mmc;
WARN_ON(host->cmd || host->data);
host->cur_slot->mrq = NULL;
host->slot->mrq = NULL;
host->mrq = NULL;
if (!list_empty(&host->queue)) {
slot = list_entry(host->queue.next,
@ -1929,7 +1943,7 @@ static void dw_mci_tasklet_func(unsigned long priv)
err = dw_mci_command_complete(host, cmd);
if (cmd == mrq->sbc && !err) {
prev_state = state = STATE_SENDING_CMD;
__dw_mci_start_request(host, host->cur_slot,
__dw_mci_start_request(host, host->slot,
mrq->cmd);
goto unlock;
}
@ -2548,26 +2562,19 @@ static void dw_mci_cmd_interrupt(struct dw_mci *host, u32 status)
static void dw_mci_handle_cd(struct dw_mci *host)
{
int i;
struct dw_mci_slot *slot = host->slot;
for (i = 0; i < host->num_slots; i++) {
struct dw_mci_slot *slot = host->slot[i];
if (!slot)
continue;
if (slot->mmc->ops->card_event)
slot->mmc->ops->card_event(slot->mmc);
mmc_detect_change(slot->mmc,
msecs_to_jiffies(host->pdata->detect_delay_ms));
}
if (slot->mmc->ops->card_event)
slot->mmc->ops->card_event(slot->mmc);
mmc_detect_change(slot->mmc,
msecs_to_jiffies(host->pdata->detect_delay_ms));
}
static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
{
struct dw_mci *host = dev_id;
u32 pending;
int i;
struct dw_mci_slot *slot = host->slot;
pending = mci_readl(host, MINTSTS); /* read-only mask reg */
@ -2644,18 +2651,11 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
dw_mci_handle_cd(host);
}
/* Handle SDIO Interrupts */
for (i = 0; i < host->num_slots; i++) {
struct dw_mci_slot *slot = host->slot[i];
if (!slot)
continue;
if (pending & SDMMC_INT_SDIO(slot->sdio_id)) {
mci_writel(host, RINTSTS,
SDMMC_INT_SDIO(slot->sdio_id));
mmc_signal_sdio_irq(slot->mmc);
}
if (pending & SDMMC_INT_SDIO(slot->sdio_id)) {
mci_writel(host, RINTSTS,
SDMMC_INT_SDIO(slot->sdio_id));
__dw_mci_enable_sdio_irq(slot, 0);
sdio_signal_irq(slot->mmc);
}
}
@ -2687,7 +2687,7 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
static int dw_mci_init_slot(struct dw_mci *host)
{
struct mmc_host *mmc;
struct dw_mci_slot *slot;
@ -2700,15 +2700,15 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
return -ENOMEM;
slot = mmc_priv(mmc);
slot->id = id;
slot->sdio_id = host->sdio_id0 + id;
slot->id = 0;
slot->sdio_id = host->sdio_id0 + slot->id;
slot->mmc = mmc;
slot->host = host;
host->slot[id] = slot;
host->slot = slot;
mmc->ops = &dw_mci_ops;
if (of_property_read_u32_array(host->dev->of_node,
"clock-freq-min-max", freq, 2)) {
if (device_property_read_u32_array(host->dev, "clock-freq-min-max",
freq, 2)) {
mmc->f_min = DW_MCI_FREQ_MIN;
mmc->f_max = DW_MCI_FREQ_MAX;
} else {
@ -2755,6 +2755,10 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
if (ret)
goto err_host_allocated;
/* Process SDIO IRQs through the sdio_irq_work. */
if (mmc->caps & MMC_CAP_SDIO_IRQ)
mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD;
/* Useful defaults if platform data is unset. */
if (host->use_dma == TRANS_MODE_IDMAC) {
mmc->max_segs = host->ring_size;
@ -2796,11 +2800,11 @@ err_host_allocated:
return ret;
}
static void dw_mci_cleanup_slot(struct dw_mci_slot *slot, unsigned int id)
static void dw_mci_cleanup_slot(struct dw_mci_slot *slot)
{
/* Debugfs stuff is cleaned up by mmc core */
mmc_remove_host(slot->mmc);
slot->host->slot[id] = NULL;
slot->host->slot = NULL;
mmc_free_host(slot->mmc);
}
@ -2808,7 +2812,6 @@ static void dw_mci_init_dma(struct dw_mci *host)
{
int addr_config;
struct device *dev = host->dev;
struct device_node *np = dev->of_node;
/*
* Check tansfer mode from HCON[17:16]
@ -2869,8 +2872,9 @@ static void dw_mci_init_dma(struct dw_mci *host)
dev_info(host->dev, "Using internal DMA controller.\n");
} else {
/* TRANS_MODE_EDMAC: check dma bindings again */
if ((of_property_count_strings(np, "dma-names") < 0) ||
(!of_find_property(np, "dmas", NULL))) {
if ((device_property_read_string_array(dev, "dma-names",
NULL, 0) < 0) ||
!device_property_present(dev, "dmas")) {
goto no_dma;
}
host->dma_ops = &dw_mci_edmac_ops;
@ -2937,7 +2941,6 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
{
struct dw_mci_board *pdata;
struct device *dev = host->dev;
struct device_node *np = dev->of_node;
const struct dw_mci_drv_data *drv_data = host->drv_data;
int ret;
u32 clock_frequency;
@ -2954,20 +2957,22 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
}
/* find out number of slots supported */
of_property_read_u32(np, "num-slots", &pdata->num_slots);
if (device_property_read_u32(dev, "num-slots", &pdata->num_slots))
dev_info(dev, "'num-slots' was deprecated.\n");
if (of_property_read_u32(np, "fifo-depth", &pdata->fifo_depth))
if (device_property_read_u32(dev, "fifo-depth", &pdata->fifo_depth))
dev_info(dev,
"fifo-depth property not found, using value of FIFOTH register as default\n");
of_property_read_u32(np, "card-detect-delay", &pdata->detect_delay_ms);
device_property_read_u32(dev, "card-detect-delay",
&pdata->detect_delay_ms);
of_property_read_u32(np, "data-addr", &host->data_addr_override);
device_property_read_u32(dev, "data-addr", &host->data_addr_override);
if (of_get_property(np, "fifo-watermark-aligned", NULL))
if (device_property_present(dev, "fifo-watermark-aligned"))
host->wm_aligned = true;
if (!of_property_read_u32(np, "clock-frequency", &clock_frequency))
if (!device_property_read_u32(dev, "clock-frequency", &clock_frequency))
pdata->bus_hz = clock_frequency;
if (drv_data && drv_data->parse_dt) {
@ -2990,29 +2995,21 @@ static void dw_mci_enable_cd(struct dw_mci *host)
{
unsigned long irqflags;
u32 temp;
int i;
struct dw_mci_slot *slot;
/*
* No need for CD if all slots have a non-error GPIO
* as well as broken card detection is found.
*/
for (i = 0; i < host->num_slots; i++) {
slot = host->slot[i];
if (slot->mmc->caps & MMC_CAP_NEEDS_POLL)
return;
if (mmc_gpio_get_cd(slot->mmc) < 0)
break;
}
if (i == host->num_slots)
if (host->slot->mmc->caps & MMC_CAP_NEEDS_POLL)
return;
spin_lock_irqsave(&host->irq_lock, irqflags);
temp = mci_readl(host, INTMASK);
temp |= SDMMC_INT_CD;
mci_writel(host, INTMASK, temp);
spin_unlock_irqrestore(&host->irq_lock, irqflags);
if (mmc_gpio_get_cd(host->slot->mmc) < 0) {
spin_lock_irqsave(&host->irq_lock, irqflags);
temp = mci_readl(host, INTMASK);
temp |= SDMMC_INT_CD;
mci_writel(host, INTMASK, temp);
spin_unlock_irqrestore(&host->irq_lock, irqflags);
}
}
int dw_mci_probe(struct dw_mci *host)
@ -3020,7 +3017,6 @@ int dw_mci_probe(struct dw_mci *host)
const struct dw_mci_drv_data *drv_data = host->drv_data;
int width, i, ret = 0;
u32 fifo_size;
int init_slots = 0;
if (!host->pdata) {
host->pdata = dw_mci_parse_dt(host);
@ -3183,19 +3179,6 @@ int dw_mci_probe(struct dw_mci *host)
if (ret)
goto err_dmaunmap;
if (host->pdata->num_slots)
host->num_slots = host->pdata->num_slots;
else
host->num_slots = 1;
if (host->num_slots < 1 ||
host->num_slots > SDMMC_GET_SLOT_NUM(mci_readl(host, HCON))) {
dev_err(host->dev,
"Platform data must supply correct num_slots.\n");
ret = -ENODEV;
goto err_clk_ciu;
}
/*
* Enable interrupts for command done, data over, data empty,
* receive ready and error such as transmit, receive timeout, crc error
@ -3211,20 +3194,9 @@ int dw_mci_probe(struct dw_mci *host)
host->irq, width, fifo_size);
/* We need at least one slot to succeed */
for (i = 0; i < host->num_slots; i++) {
ret = dw_mci_init_slot(host, i);
if (ret)
dev_dbg(host->dev, "slot %d init failed\n", i);
else
init_slots++;
}
if (init_slots) {
dev_info(host->dev, "%d slots initialized\n", init_slots);
} else {
dev_dbg(host->dev,
"attempted to initialize %d slots, but failed on all\n",
host->num_slots);
ret = dw_mci_init_slot(host);
if (ret) {
dev_dbg(host->dev, "slot %d init failed\n", i);
goto err_dmaunmap;
}
@ -3252,13 +3224,9 @@ EXPORT_SYMBOL(dw_mci_probe);
void dw_mci_remove(struct dw_mci *host)
{
int i;
for (i = 0; i < host->num_slots; i++) {
dev_dbg(host->dev, "remove slot %d\n", i);
if (host->slot[i])
dw_mci_cleanup_slot(host->slot[i], i);
}
dev_dbg(host->dev, "remove slot\n");
if (host->slot)
dw_mci_cleanup_slot(host->slot);
mci_writel(host, RINTSTS, 0xFFFFFFFF);
mci_writel(host, INTMASK, 0); /* disable all mmc interrupt first */
@ -3290,9 +3258,9 @@ int dw_mci_runtime_suspend(struct device *dev)
clk_disable_unprepare(host->ciu_clk);
if (host->cur_slot &&
(mmc_can_gpio_cd(host->cur_slot->mmc) ||
!mmc_card_is_removable(host->cur_slot->mmc)))
if (host->slot &&
(mmc_can_gpio_cd(host->slot->mmc) ||
!mmc_card_is_removable(host->slot->mmc)))
clk_disable_unprepare(host->biu_clk);
return 0;
@ -3301,12 +3269,12 @@ EXPORT_SYMBOL(dw_mci_runtime_suspend);
int dw_mci_runtime_resume(struct device *dev)
{
int i, ret = 0;
int ret = 0;
struct dw_mci *host = dev_get_drvdata(dev);
if (host->cur_slot &&
(mmc_can_gpio_cd(host->cur_slot->mmc) ||
!mmc_card_is_removable(host->cur_slot->mmc))) {
if (host->slot &&
(mmc_can_gpio_cd(host->slot->mmc) ||
!mmc_card_is_removable(host->slot->mmc))) {
ret = clk_prepare_enable(host->biu_clk);
if (ret)
return ret;
@ -3341,17 +3309,12 @@ int dw_mci_runtime_resume(struct device *dev)
DW_MCI_ERROR_FLAGS);
mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE);
for (i = 0; i < host->num_slots; i++) {
struct dw_mci_slot *slot = host->slot[i];
if (!slot)
continue;
if (slot->mmc->pm_flags & MMC_PM_KEEP_POWER)
dw_mci_set_ios(slot->mmc, &slot->mmc->ios);
if (host->slot->mmc->pm_flags & MMC_PM_KEEP_POWER)
dw_mci_set_ios(host->slot->mmc, &host->slot->mmc->ios);
/* Force setup bus to guarantee available clock output */
dw_mci_setup_bus(slot, true);
}
/* Force setup bus to guarantee available clock output */
dw_mci_setup_bus(host->slot, true);
/* Now that slots are all setup, we can enable card detect */
dw_mci_enable_cd(host);
@ -3359,9 +3322,9 @@ int dw_mci_runtime_resume(struct device *dev)
return 0;
err:
if (host->cur_slot &&
(mmc_can_gpio_cd(host->cur_slot->mmc) ||
!mmc_card_is_removable(host->cur_slot->mmc)))
if (host->slot &&
(mmc_can_gpio_cd(host->slot->mmc) ||
!mmc_card_is_removable(host->slot->mmc)))
clk_disable_unprepare(host->biu_clk);
return ret;

7
drivers/mmc/host/dw_mmc.h
View File

@ -20,8 +20,6 @@
#include <linux/reset.h>
#include <linux/interrupt.h>
#define MAX_MCI_SLOTS 2
enum dw_mci_state {
STATE_IDLE = 0,
STATE_SENDING_CMD,
@ -134,7 +132,6 @@ struct dw_mci_dma_slave {
* =======
*
* @lock is a softirq-safe spinlock protecting @queue as well as
* @cur_slot, @mrq and @state. These must always be updated
* at the same time while holding @lock.
*
* @irq_lock is an irq-safe spinlock protecting the INTMASK register
@ -170,7 +167,6 @@ struct dw_mci {
struct scatterlist *sg;
struct sg_mapping_iter sg_miter;
struct dw_mci_slot *cur_slot;
struct mmc_request *mrq;
struct mmc_command *cmd;
struct mmc_data *data;
@ -206,7 +202,6 @@ struct dw_mci {
u32 bus_hz;
u32 current_speed;
u32 num_slots;
u32 fifoth_val;
u16 verid;
struct device *dev;
@ -215,7 +210,7 @@ struct dw_mci {
void *priv;
struct clk *biu_clk;
struct clk *ciu_clk;
struct dw_mci_slot *slot[MAX_MCI_SLOTS];
struct dw_mci_slot *slot;
/* FIFO push and pull */
int fifo_depth;

2
drivers/mmc/host/mtk-sd.c
View File

@ -1774,7 +1774,7 @@ static int msdc_drv_remove(struct platform_device *pdev)
pm_runtime_disable(host->dev);
pm_runtime_put_noidle(host->dev);
dma_free_coherent(&pdev->dev,
sizeof(struct mt_gpdma_desc),
2 * sizeof(struct mt_gpdma_desc),
host->dma.gpd, host->dma.gpd_addr);
dma_free_coherent(&pdev->dev, MAX_BD_NUM * sizeof(struct mt_bdma_desc),
host->dma.bd, host->dma.bd_addr);

55
drivers/mmc/host/omap_hsmmc.c
View File

@ -250,14 +250,14 @@ static int omap_hsmmc_enable_supply(struct mmc_host *mmc)
struct omap_hsmmc_host *host = mmc_priv(mmc);
struct mmc_ios *ios = &mmc->ios;
if (mmc->supply.vmmc) {
if (!IS_ERR(mmc->supply.vmmc)) {
ret = mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd);
if (ret)
return ret;
}
/* Enable interface voltage rail, if needed */
if (mmc->supply.vqmmc && !host->vqmmc_enabled) {
if (!IS_ERR(mmc->supply.vqmmc) && !host->vqmmc_enabled) {
ret = regulator_enable(mmc->supply.vqmmc);
if (ret) {
dev_err(mmc_dev(mmc), "vmmc_aux reg enable failed\n");
@ -269,7 +269,7 @@ static int omap_hsmmc_enable_supply(struct mmc_host *mmc)
return 0;
err_vqmmc:
if (mmc->supply.vmmc)
if (!IS_ERR(mmc->supply.vmmc))
mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
return ret;
@ -281,7 +281,7 @@ static int omap_hsmmc_disable_supply(struct mmc_host *mmc)
int status;
struct omap_hsmmc_host *host = mmc_priv(mmc);
if (mmc->supply.vqmmc && host->vqmmc_enabled) {
if (!IS_ERR(mmc->supply.vqmmc) && host->vqmmc_enabled) {
ret = regulator_disable(mmc->supply.vqmmc);
if (ret) {
dev_err(mmc_dev(mmc), "vmmc_aux reg disable failed\n");
@ -290,7 +290,7 @@ static int omap_hsmmc_disable_supply(struct mmc_host *mmc)
host->vqmmc_enabled = 0;
}
if (mmc->supply.vmmc) {
if (!IS_ERR(mmc->supply.vmmc)) {
ret = mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
if (ret)
goto err_set_ocr;
@ -299,7 +299,7 @@ static int omap_hsmmc_disable_supply(struct mmc_host *mmc)
return 0;
err_set_ocr:
if (mmc->supply.vqmmc) {
if (!IS_ERR(mmc->supply.vqmmc)) {
status = regulator_enable(mmc->supply.vqmmc);
if (status)
dev_err(mmc_dev(mmc), "vmmc_aux re-enable failed\n");
@ -313,7 +313,7 @@ static int omap_hsmmc_set_pbias(struct omap_hsmmc_host *host, bool power_on,
{
int ret;
if (!host->pbias)
if (IS_ERR(host->pbias))
return 0;
if (power_on) {
@ -363,7 +363,7 @@ static int omap_hsmmc_set_power(struct omap_hsmmc_host *host, int power_on,
* If we don't see a Vcc regulator, assume it's a fixed
* voltage always-on regulator.
*/
if (!mmc->supply.vmmc)
if (IS_ERR(mmc->supply.vmmc))
return 0;
if (mmc_pdata(host)->before_set_reg)
@ -415,7 +415,7 @@ static int omap_hsmmc_disable_boot_regulator(struct regulator *reg)
{
int ret;
if (!reg)
if (IS_ERR(reg))
return 0;
if (regulator_is_enabled(reg)) {
@ -466,36 +466,27 @@ static int omap_hsmmc_disable_boot_regulators(struct omap_hsmmc_host *host)
static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
{
int ocr_value = 0;
int ret;
struct mmc_host *mmc = host->mmc;
if (mmc_pdata(host)->set_power)
return 0;
mmc->supply.vmmc = devm_regulator_get_optional(host->dev, "vmmc");
if (IS_ERR(mmc->supply.vmmc)) {
ret = PTR_ERR(mmc->supply.vmmc);
if ((ret != -ENODEV) && host->dev->of_node)
return ret;
dev_dbg(host->dev, "unable to get vmmc regulator %ld\n",
PTR_ERR(mmc->supply.vmmc));
mmc->supply.vmmc = NULL;
} else {
ocr_value = mmc_regulator_get_ocrmask(mmc->supply.vmmc);
if (ocr_value > 0)
mmc_pdata(host)->ocr_mask = ocr_value;
}
ret = mmc_regulator_get_supply(mmc);
if (ret == -EPROBE_DEFER)
return ret;
/* Allow an aux regulator */
mmc->supply.vqmmc = devm_regulator_get_optional(host->dev, "vmmc_aux");
if (IS_ERR(mmc->supply.vqmmc)) {
ret = PTR_ERR(mmc->supply.vqmmc);
if ((ret != -ENODEV) && host->dev->of_node)
return ret;
dev_dbg(host->dev, "unable to get vmmc_aux regulator %ld\n",
PTR_ERR(mmc->supply.vqmmc));
mmc->supply.vqmmc = NULL;
mmc->supply.vqmmc = devm_regulator_get_optional(host->dev,
"vmmc_aux");
if (IS_ERR(mmc->supply.vqmmc)) {
ret = PTR_ERR(mmc->supply.vqmmc);
if ((ret != -ENODEV) && host->dev->of_node)
return ret;
dev_dbg(host->dev, "unable to get vmmc_aux regulator %ld\n",
PTR_ERR(mmc->supply.vqmmc));
}
}
host->pbias = devm_regulator_get_optional(host->dev, "pbias");
@ -508,7 +499,6 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
}
dev_dbg(host->dev, "unable to get pbias regulator %ld\n",
PTR_ERR(host->pbias));
host->pbias = NULL;
}
/* For eMMC do not power off when not in sleep state */
@ -2146,7 +2136,8 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
if (ret)
goto err_irq;
mmc->ocr_avail = mmc_pdata(host)->ocr_mask;
if (!mmc->ocr_avail)
mmc->ocr_avail = mmc_pdata(host)->ocr_mask;
omap_hsmmc_disable_irq(host);

6
drivers/mmc/host/pxamci.c
View File

@ -702,7 +702,11 @@ static int pxamci_probe(struct platform_device *pdev)
pxamci_init_ocr(host);
mmc->caps = 0;
/*
* This architecture used to disable bounce buffers through its
* defconfig, now it is done at runtime as a host property.
*/
mmc->caps = MMC_CAP_NO_BOUNCE_BUFF;
host->cmdat = 0;
if (!cpu_is_pxa25x()) {
mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;

39
drivers/mmc/host/renesas_sdhi.h Normal file
View File

@ -0,0 +1,39 @@
/*
* Renesas Mobile SDHI
*
* Copyright (C) 2017 Horms Solutions Ltd., Simon Horman
* Copyright (C) 2017 Renesas Electronics Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef RENESAS_SDHI_H
#define RENESAS_SDHI_H
#include <linux/platform_device.h>
#include "tmio_mmc.h"
struct renesas_sdhi_scc {
unsigned long clk_rate; /* clock rate for SDR104 */
u32 tap; /* sampling clock position for SDR104 */
};
struct renesas_sdhi_of_data {
unsigned long tmio_flags;
u32 tmio_ocr_mask;
unsigned long capabilities;
unsigned long capabilities2;
enum dma_slave_buswidth dma_buswidth;
dma_addr_t dma_rx_offset;
unsigned int bus_shift;
int scc_offset;
struct renesas_sdhi_scc *taps;
int taps_num;
};
int renesas_sdhi_probe(struct platform_device *pdev,
const struct tmio_mmc_dma_ops *dma_ops);
int renesas_sdhi_remove(struct platform_device *pdev);
#endif

273
drivers/mmc/host/sh_mobile_sdhi.c → drivers/mmc/host/renesas_sdhi_core.c
View File

@ -1,8 +1,9 @@
/*
* SuperH Mobile SDHI
* Renesas SDHI
*
* Copyright (C) 2016 Sang Engineering, Wolfram Sang
* Copyright (C) 2015-16 Renesas Electronics Corporation
* Copyright (C) 2015-17 Renesas Electronics Corporation
* Copyright (C) 2016-17 Sang Engineering, Wolfram Sang
* Copyright (C) 2016-17 Horms Solutions, Simon Horman
* Copyright (C) 2009 Magnus Damm
*
* This program is free software; you can redistribute it and/or modify
@ -23,8 +24,6 @@
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/slab.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/mmc/host.h>
@ -35,6 +34,7 @@
#include <linux/pinctrl/pinctrl-state.h>
#include <linux/regulator/consumer.h>
#include "renesas_sdhi.h"
#include "tmio_mmc.h"
#define EXT_ACC 0xe4
@ -45,103 +45,10 @@
#define SDHI_VER_GEN3_SD 0xcc10
#define SDHI_VER_GEN3_SDMMC 0xcd10
#define host_to_priv(host) container_of((host)->pdata, struct sh_mobile_sdhi, mmc_data)
#define host_to_priv(host) \
container_of((host)->pdata, struct renesas_sdhi, mmc_data)
struct sh_mobile_sdhi_scc {
unsigned long clk_rate; /* clock rate for SDR104 */
u32 tap; /* sampling clock position for SDR104 */
};
struct sh_mobile_sdhi_of_data {
unsigned long tmio_flags;
u32 tmio_ocr_mask;
unsigned long capabilities;
unsigned long capabilities2;
enum dma_slave_buswidth dma_buswidth;
dma_addr_t dma_rx_offset;
unsigned bus_shift;
int scc_offset;
struct sh_mobile_sdhi_scc *taps;
int taps_num;
};
static const struct sh_mobile_sdhi_of_data of_default_cfg = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
};
static const struct sh_mobile_sdhi_of_data of_rz_compatible = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_32BIT_DATA_PORT,
.tmio_ocr_mask = MMC_VDD_32_33,
.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
};
static const struct sh_mobile_sdhi_of_data of_rcar_gen1_compatible = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
TMIO_MMC_CLK_ACTUAL,
.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
};
/* Definitions for sampling clocks */
static struct sh_mobile_sdhi_scc rcar_gen2_scc_taps[] = {
{
.clk_rate = 156000000,
.tap = 0x00000703,
},
{
.clk_rate = 0,
.tap = 0x00000300,
},
};
static const struct sh_mobile_sdhi_of_data of_rcar_gen2_compatible = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2,
.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
.dma_buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES,
.dma_rx_offset = 0x2000,
.scc_offset = 0x0300,
.taps = rcar_gen2_scc_taps,
.taps_num = ARRAY_SIZE(rcar_gen2_scc_taps),
};
/* Definitions for sampling clocks */
static struct sh_mobile_sdhi_scc rcar_gen3_scc_taps[] = {
{
.clk_rate = 0,
.tap = 0x00000300,
},
};
static const struct sh_mobile_sdhi_of_data of_rcar_gen3_compatible = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2,
.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
.bus_shift = 2,
.scc_offset = 0x1000,
.taps = rcar_gen3_scc_taps,
.taps_num = ARRAY_SIZE(rcar_gen3_scc_taps),
};
static const struct of_device_id sh_mobile_sdhi_of_match[] = {
{ .compatible = "renesas,sdhi-shmobile" },
{ .compatible = "renesas,sdhi-sh73a0", .data = &of_default_cfg, },
{ .compatible = "renesas,sdhi-r8a73a4", .data = &of_default_cfg, },
{ .compatible = "renesas,sdhi-r8a7740", .data = &of_default_cfg, },
{ .compatible = "renesas,sdhi-r7s72100", .data = &of_rz_compatible, },
{ .compatible = "renesas,sdhi-r8a7778", .data = &of_rcar_gen1_compatible, },
{ .compatible = "renesas,sdhi-r8a7779", .data = &of_rcar_gen1_compatible, },
{ .compatible = "renesas,sdhi-r8a7790", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7791", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7792", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7793", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7794", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7795", .data = &of_rcar_gen3_compatible, },
{ .compatible = "renesas,sdhi-r8a7796", .data = &of_rcar_gen3_compatible, },
{},
};
MODULE_DEVICE_TABLE(of, sh_mobile_sdhi_of_match);
struct sh_mobile_sdhi {
struct renesas_sdhi {
struct clk *clk;
struct clk *clk_cd;
struct tmio_mmc_data mmc_data;
@ -151,13 +58,13 @@ struct sh_mobile_sdhi {
void __iomem *scc_ctl;
};
static void sh_mobile_sdhi_sdbuf_width(struct tmio_mmc_host *host, int width)
static void renesas_sdhi_sdbuf_width(struct tmio_mmc_host *host, int width)
{
u32 val;
/*
* see also
* sh_mobile_sdhi_of_data :: dma_buswidth
* renesas_sdhi_of_data :: dma_buswidth
*/
switch (sd_ctrl_read16(host, CTL_VERSION)) {
case SDHI_VER_GEN2_SDR50:
@ -183,11 +90,12 @@ static void sh_mobile_sdhi_sdbuf_width(struct tmio_mmc_host *host, int width)
sd_ctrl_write16(host, EXT_ACC, val);
}
static int sh_mobile_sdhi_clk_enable(struct tmio_mmc_host *host)
static int renesas_sdhi_clk_enable(struct tmio_mmc_host *host)
{
struct mmc_host *mmc = host->mmc;
struct sh_mobile_sdhi *priv = host_to_priv(host);
struct renesas_sdhi *priv = host_to_priv(host);
int ret = clk_prepare_enable(priv->clk);
if (ret < 0)
return ret;
@ -213,19 +121,19 @@ static int sh_mobile_sdhi_clk_enable(struct tmio_mmc_host *host)
mmc->f_min = max(clk_round_rate(priv->clk, 1) / 512, 1L);
/* enable 16bit data access on SDBUF as default */
sh_mobile_sdhi_sdbuf_width(host, 16);
renesas_sdhi_sdbuf_width(host, 16);
return 0;
}
static unsigned int sh_mobile_sdhi_clk_update(struct tmio_mmc_host *host,
unsigned int new_clock)
static unsigned int renesas_sdhi_clk_update(struct tmio_mmc_host *host,
unsigned int new_clock)
{
struct sh_mobile_sdhi *priv = host_to_priv(host);
struct renesas_sdhi *priv = host_to_priv(host);
unsigned int freq, diff, best_freq = 0, diff_min = ~0;
int i, ret;
/* tested only on RCar Gen2+ currently; may work for others */
/* tested only on R-Car Gen2+ currently; may work for others */
if (!(host->pdata->flags & TMIO_MMC_MIN_RCAR2))
return clk_get_rate(priv->clk);
@ -257,26 +165,27 @@ static unsigned int sh_mobile_sdhi_clk_update(struct tmio_mmc_host *host,
return ret == 0 ? best_freq : clk_get_rate(priv->clk);
}
static void sh_mobile_sdhi_clk_disable(struct tmio_mmc_host *host)
static void renesas_sdhi_clk_disable(struct tmio_mmc_host *host)
{
struct sh_mobile_sdhi *priv = host_to_priv(host);
struct renesas_sdhi *priv = host_to_priv(host);
clk_disable_unprepare(priv->clk);
clk_disable_unprepare(priv->clk_cd);
}
static int sh_mobile_sdhi_card_busy(struct mmc_host *mmc)
static int renesas_sdhi_card_busy(struct mmc_host *mmc)
{
struct tmio_mmc_host *host = mmc_priv(mmc);
return !(sd_ctrl_read16_and_16_as_32(host, CTL_STATUS) & TMIO_STAT_DAT0);
return !(sd_ctrl_read16_and_16_as_32(host, CTL_STATUS) &
TMIO_STAT_DAT0);
}
static int sh_mobile_sdhi_start_signal_voltage_switch(struct mmc_host *mmc,
struct mmc_ios *ios)
static int renesas_sdhi_start_signal_voltage_switch(struct mmc_host *mmc,
struct mmc_ios *ios)
{
struct tmio_mmc_host *host = mmc_priv(mmc);
struct sh_mobile_sdhi *priv = host_to_priv(host);
struct renesas_sdhi *priv = host_to_priv(host);
struct pinctrl_state *pin_state;
int ret;
@ -327,21 +236,21 @@ static int sh_mobile_sdhi_start_signal_voltage_switch(struct mmc_host *mmc,
#define SH_MOBILE_SDHI_SCC_RVSREQ_RVSERR BIT(2)
static inline u32 sd_scc_read32(struct tmio_mmc_host *host,
struct sh_mobile_sdhi *priv, int addr)
struct renesas_sdhi *priv, int addr)
{
return readl(priv->scc_ctl + (addr << host->bus_shift));
}
static inline void sd_scc_write32(struct tmio_mmc_host *host,
struct sh_mobile_sdhi *priv,
struct renesas_sdhi *priv,
int addr, u32 val)
{
writel(val, priv->scc_ctl + (addr << host->bus_shift));
}
static unsigned int sh_mobile_sdhi_init_tuning(struct tmio_mmc_host *host)
static unsigned int renesas_sdhi_init_tuning(struct tmio_mmc_host *host)
{
struct sh_mobile_sdhi *priv;
struct renesas_sdhi *priv;
priv = host_to_priv(host);
@ -378,10 +287,10 @@ static unsigned int sh_mobile_sdhi_init_tuning(struct tmio_mmc_host *host)
SH_MOBILE_SDHI_SCC_DTCNTL_TAPNUM_MASK;
}
static void sh_mobile_sdhi_prepare_tuning(struct tmio_mmc_host *host,
unsigned long tap)
static void renesas_sdhi_prepare_tuning(struct tmio_mmc_host *host,
unsigned long tap)
{
struct sh_mobile_sdhi *priv = host_to_priv(host);
struct renesas_sdhi *priv = host_to_priv(host);
/* Set sampling clock position */
sd_scc_write32(host, priv, SH_MOBILE_SDHI_SCC_TAPSET, tap);
@ -389,9 +298,9 @@ static void sh_mobile_sdhi_prepare_tuning(struct tmio_mmc_host *host,
#define SH_MOBILE_SDHI_MAX_TAP 3
static int sh_mobile_sdhi_select_tuning(struct tmio_mmc_host *host)
static int renesas_sdhi_select_tuning(struct tmio_mmc_host *host)
{
struct sh_mobile_sdhi *priv = host_to_priv(host);
struct renesas_sdhi *priv = host_to_priv(host);
unsigned long tap_cnt; /* counter of tuning success */
unsigned long tap_set; /* tap position */
unsigned long tap_start;/* start position of tuning success */
@ -412,9 +321,9 @@ static int sh_mobile_sdhi_select_tuning(struct tmio_mmc_host *host)
tap_start = 0;
tap_end = 0;
for (i = 0; i < host->tap_num * 2; i++) {
if (test_bit(i, host->taps))
if (test_bit(i, host->taps)) {
ntap++;
else {
} else {
if (ntap > tap_cnt) {
tap_start = i - ntap;
tap_end = i - 1;
@ -446,10 +355,9 @@ static int sh_mobile_sdhi_select_tuning(struct tmio_mmc_host *host)
return 0;
}
static bool sh_mobile_sdhi_check_scc_error(struct tmio_mmc_host *host)
static bool renesas_sdhi_check_scc_error(struct tmio_mmc_host *host)
{
struct sh_mobile_sdhi *priv = host_to_priv(host);
struct renesas_sdhi *priv = host_to_priv(host);
/* Check SCC error */
if (sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL) &
@ -464,9 +372,9 @@ static bool sh_mobile_sdhi_check_scc_error(struct tmio_mmc_host *host)
return false;
}
static void sh_mobile_sdhi_hw_reset(struct tmio_mmc_host *host)
static void renesas_sdhi_hw_reset(struct tmio_mmc_host *host)
{
struct sh_mobile_sdhi *priv;
struct renesas_sdhi *priv;
priv = host_to_priv(host);
@ -490,7 +398,7 @@ static void sh_mobile_sdhi_hw_reset(struct tmio_mmc_host *host)
sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL));
}
static int sh_mobile_sdhi_wait_idle(struct tmio_mmc_host *host)
static int renesas_sdhi_wait_idle(struct tmio_mmc_host *host)
{
int timeout = 1000;
@ -506,10 +414,9 @@ static int sh_mobile_sdhi_wait_idle(struct tmio_mmc_host *host)
return 0;
}
static int sh_mobile_sdhi_write16_hook(struct tmio_mmc_host *host, int addr)
static int renesas_sdhi_write16_hook(struct tmio_mmc_host *host, int addr)
{
switch (addr)
{
switch (addr) {
case CTL_SD_CMD:
case CTL_STOP_INTERNAL_ACTION:
case CTL_XFER_BLK_COUNT:
@ -519,14 +426,14 @@ static int sh_mobile_sdhi_write16_hook(struct tmio_mmc_host *host, int addr)
case CTL_TRANSACTION_CTL:
case CTL_DMA_ENABLE:
case EXT_ACC:
return sh_mobile_sdhi_wait_idle(host);
return renesas_sdhi_wait_idle(host);
}
return 0;
}
static int sh_mobile_sdhi_multi_io_quirk(struct mmc_card *card,
unsigned int direction, int blk_size)
static int renesas_sdhi_multi_io_quirk(struct mmc_card *card,
unsigned int direction, int blk_size)
{
/*
* In Renesas controllers, when performing a
@ -543,30 +450,34 @@ static int sh_mobile_sdhi_multi_io_quirk(struct mmc_card *card,
return blk_size;
}
static void sh_mobile_sdhi_enable_dma(struct tmio_mmc_host *host, bool enable)
static void renesas_sdhi_enable_dma(struct tmio_mmc_host *host, bool enable)
{
sd_ctrl_write16(host, CTL_DMA_ENABLE, enable ? 2 : 0);
/* enable 32bit access if DMA mode if possibile */
sh_mobile_sdhi_sdbuf_width(host, enable ? 32 : 16);
renesas_sdhi_sdbuf_width(host, enable ? 32 : 16);
}
static int sh_mobile_sdhi_probe(struct platform_device *pdev)
int renesas_sdhi_probe(struct platform_device *pdev,
const struct tmio_mmc_dma_ops *dma_ops)
{
const struct sh_mobile_sdhi_of_data *of_data = of_device_get_match_data(&pdev->dev);
struct sh_mobile_sdhi *priv;
struct tmio_mmc_data *mmc_data;
struct tmio_mmc_data *mmd = pdev->dev.platform_data;
const struct renesas_sdhi_of_data *of_data;
struct tmio_mmc_data *mmc_data;
struct tmio_mmc_dma *dma_priv;
struct tmio_mmc_host *host;
struct renesas_sdhi *priv;
struct resource *res;
int irq, ret, i;
struct tmio_mmc_dma *dma_priv;
of_data = of_device_get_match_data(&pdev->dev);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -EINVAL;
priv = devm_kzalloc(&pdev->dev, sizeof(struct sh_mobile_sdhi), GFP_KERNEL);
priv = devm_kzalloc(&pdev->dev, sizeof(struct renesas_sdhi),
GFP_KERNEL);
if (!priv)
return -ENOMEM;
@ -609,7 +520,6 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
goto eprobe;
}
if (of_data) {
mmc_data->flags |= of_data->tmio_flags;
mmc_data->ocr_mask = of_data->tmio_ocr_mask;
@ -621,18 +531,18 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
}
host->dma = dma_priv;
host->write16_hook = sh_mobile_sdhi_write16_hook;
host->clk_enable = sh_mobile_sdhi_clk_enable;
host->clk_update = sh_mobile_sdhi_clk_update;
host->clk_disable = sh_mobile_sdhi_clk_disable;
host->multi_io_quirk = sh_mobile_sdhi_multi_io_quirk;
host->write16_hook = renesas_sdhi_write16_hook;
host->clk_enable = renesas_sdhi_clk_enable;
host->clk_update = renesas_sdhi_clk_update;
host->clk_disable = renesas_sdhi_clk_disable;
host->multi_io_quirk = renesas_sdhi_multi_io_quirk;
/* SDR speeds are only available on Gen2+ */
if (mmc_data->flags & TMIO_MMC_MIN_RCAR2) {
/* card_busy caused issues on r8a73a4 (pre-Gen2) CD-less SDHI */
host->card_busy = sh_mobile_sdhi_card_busy;
host->card_busy = renesas_sdhi_card_busy;
host->start_signal_voltage_switch =
sh_mobile_sdhi_start_signal_voltage_switch;
renesas_sdhi_start_signal_voltage_switch;
}
/* Orginally registers were 16 bit apart, could be 32 or 64 nowadays */
@ -643,7 +553,7 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
*mmc_data = *mmd;
dma_priv->filter = shdma_chan_filter;
dma_priv->enable = sh_mobile_sdhi_enable_dma;
dma_priv->enable = renesas_sdhi_enable_dma;
mmc_data->alignment_shift = 1; /* 2-byte alignment */
mmc_data->capabilities |= MMC_CAP_MMC_HIGHSPEED;
@ -659,15 +569,13 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
*/
mmc_data->flags |= TMIO_MMC_SDIO_IRQ;
/*
* All SDHI have CMD12 controll bit
*/
/* All SDHI have CMD12 control bit */
mmc_data->flags |= TMIO_MMC_HAVE_CMD12_CTRL;
/* All SDHI have SDIO status bits which must be 1 */
mmc_data->flags |= TMIO_MMC_SDIO_STATUS_SETBITS;
ret = tmio_mmc_host_probe(host, mmc_data);
ret = tmio_mmc_host_probe(host, mmc_data, dma_ops);
if (ret < 0)
goto efree;
@ -675,7 +583,7 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
if (of_data && of_data->scc_offset &&
(host->mmc->caps & MMC_CAP_UHS_SDR104 ||
host->mmc->caps2 & MMC_CAP2_HS200_1_8V_SDR)) {
const struct sh_mobile_sdhi_scc *taps = of_data->taps;
const struct renesas_sdhi_scc *taps = of_data->taps;
bool hit = false;
host->mmc->caps |= MMC_CAP_HW_RESET;
@ -693,11 +601,11 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
dev_warn(&host->pdev->dev, "Unknown clock rate for SDR104\n");
priv->scc_ctl = host->ctl + of_data->scc_offset;
host->init_tuning = sh_mobile_sdhi_init_tuning;
host->prepare_tuning = sh_mobile_sdhi_prepare_tuning;
host->select_tuning = sh_mobile_sdhi_select_tuning;
host->check_scc_error = sh_mobile_sdhi_check_scc_error;
host->hw_reset = sh_mobile_sdhi_hw_reset;
host->init_tuning = renesas_sdhi_init_tuning;
host->prepare_tuning = renesas_sdhi_prepare_tuning;
host->select_tuning = renesas_sdhi_select_tuning;
host->check_scc_error = renesas_sdhi_check_scc_error;
host->hw_reset = renesas_sdhi_hw_reset;
}
i = 0;
@ -707,7 +615,7 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
break;
i++;
ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_irq, 0,
dev_name(&pdev->dev), host);
dev_name(&pdev->dev), host);
if (ret)
goto eirq;
}
@ -732,8 +640,9 @@ efree:
eprobe:
return ret;
}
EXPORT_SYMBOL_GPL(renesas_sdhi_probe);
static int sh_mobile_sdhi_remove(struct platform_device *pdev)
int renesas_sdhi_remove(struct platform_device *pdev)
{
struct mmc_host *mmc = platform_get_drvdata(pdev);
struct tmio_mmc_host *host = mmc_priv(mmc);
@ -742,28 +651,4 @@ static int sh_mobile_sdhi_remove(struct platform_device *pdev)
return 0;
}
static const struct dev_pm_ops tmio_mmc_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
SET_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend,
tmio_mmc_host_runtime_resume,
NULL)
};
static struct platform_driver sh_mobile_sdhi_driver = {
.driver = {
.name = "sh_mobile_sdhi",
.pm = &tmio_mmc_dev_pm_ops,
.of_match_table = sh_mobile_sdhi_of_match,
},
.probe = sh_mobile_sdhi_probe,
.remove = sh_mobile_sdhi_remove,
};
module_platform_driver(sh_mobile_sdhi_driver);
MODULE_DESCRIPTION("SuperH Mobile SDHI driver");
MODULE_AUTHOR("Magnus Damm");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:sh_mobile_sdhi");
EXPORT_SYMBOL_GPL(renesas_sdhi_remove);

186
drivers/mmc/host/tmio_mmc_dma.c → drivers/mmc/host/renesas_sdhi_sys_dmac.c
View File

@ -1,13 +1,14 @@
/*
* linux/drivers/mmc/tmio_mmc_dma.c
* DMA function for TMIO MMC implementations
*
* Copyright (C) 2016-17 Renesas Electronics Corporation
* Copyright (C) 2016-17 Sang Engineering, Wolfram Sang
* Copyright (C) 2017 Horms Solutions, Simon Horman
* Copyright (C) 2010-2011 Guennadi Liakhovetski
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* DMA function for TMIO MMC implementations
*/
#include <linux/device.h>
@ -15,14 +16,96 @@
#include <linux/dmaengine.h>
#include <linux/mfd/tmio.h>
#include <linux/mmc/host.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/pagemap.h>
#include <linux/scatterlist.h>
#include "renesas_sdhi.h"
#include "tmio_mmc.h"
#define TMIO_MMC_MIN_DMA_LEN 8
void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
static const struct renesas_sdhi_of_data of_default_cfg = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
};
static const struct renesas_sdhi_of_data of_rz_compatible = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_32BIT_DATA_PORT,
.tmio_ocr_mask = MMC_VDD_32_33,
.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
};
static const struct renesas_sdhi_of_data of_rcar_gen1_compatible = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
TMIO_MMC_CLK_ACTUAL,
.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
};
/* Definitions for sampling clocks */
static struct renesas_sdhi_scc rcar_gen2_scc_taps[] = {
{
.clk_rate = 156000000,
.tap = 0x00000703,
},
{
.clk_rate = 0,
.tap = 0x00000300,
},
};
static const struct renesas_sdhi_of_data of_rcar_gen2_compatible = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2,
.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
MMC_CAP_CMD23,
.dma_buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES,
.dma_rx_offset = 0x2000,
.scc_offset = 0x0300,
.taps = rcar_gen2_scc_taps,
.taps_num = ARRAY_SIZE(rcar_gen2_scc_taps),
};
/* Definitions for sampling clocks */
static struct renesas_sdhi_scc rcar_gen3_scc_taps[] = {
{
.clk_rate = 0,
.tap = 0x00000300,
},
};
static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2,
.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
MMC_CAP_CMD23,
.bus_shift = 2,
.scc_offset = 0x1000,
.taps = rcar_gen3_scc_taps,
.taps_num = ARRAY_SIZE(rcar_gen3_scc_taps),
};
static const struct of_device_id renesas_sdhi_sys_dmac_of_match[] = {
{ .compatible = "renesas,sdhi-shmobile" },
{ .compatible = "renesas,sdhi-sh73a0", .data = &of_default_cfg, },
{ .compatible = "renesas,sdhi-r8a73a4", .data = &of_default_cfg, },
{ .compatible = "renesas,sdhi-r8a7740", .data = &of_default_cfg, },
{ .compatible = "renesas,sdhi-r7s72100", .data = &of_rz_compatible, },
{ .compatible = "renesas,sdhi-r8a7778", .data = &of_rcar_gen1_compatible, },
{ .compatible = "renesas,sdhi-r8a7779", .data = &of_rcar_gen1_compatible, },
{ .compatible = "renesas,sdhi-r8a7790", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7791", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7792", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7793", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7794", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7795", .data = &of_rcar_gen3_compatible, },
{ .compatible = "renesas,sdhi-r8a7796", .data = &of_rcar_gen3_compatible, },
{},
};
MODULE_DEVICE_TABLE(of, renesas_sdhi_sys_dmac_of_match);
static void renesas_sdhi_sys_dmac_enable_dma(struct tmio_mmc_host *host,
bool enable)
{
if (!host->chan_tx || !host->chan_rx)
return;
@ -31,19 +114,19 @@ void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
host->dma->enable(host, enable);
}
void tmio_mmc_abort_dma(struct tmio_mmc_host *host)
static void renesas_sdhi_sys_dmac_abort_dma(struct tmio_mmc_host *host)
{
tmio_mmc_enable_dma(host, false);
renesas_sdhi_sys_dmac_enable_dma(host, false);
if (host->chan_rx)
dmaengine_terminate_all(host->chan_rx);
if (host->chan_tx)
dmaengine_terminate_all(host->chan_tx);
tmio_mmc_enable_dma(host, true);
renesas_sdhi_sys_dmac_enable_dma(host, true);
}
static void tmio_mmc_dma_callback(void *arg)
static void renesas_sdhi_sys_dmac_dma_callback(void *arg)
{
struct tmio_mmc_host *host = arg;
@ -71,7 +154,7 @@ out:
spin_unlock_irq(&host->lock);
}
static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host)
static void renesas_sdhi_sys_dmac_start_dma_rx(struct tmio_mmc_host *host)
{
struct scatterlist *sg = host->sg_ptr, *sg_tmp;
struct dma_async_tx_descriptor *desc = NULL;
@ -112,12 +195,12 @@ static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host)
ret = dma_map_sg(chan->device->dev, sg, host->sg_len, DMA_FROM_DEVICE);
if (ret > 0)
desc = dmaengine_prep_slave_sg(chan, sg, ret,
DMA_DEV_TO_MEM, DMA_CTRL_ACK);
desc = dmaengine_prep_slave_sg(chan, sg, ret, DMA_DEV_TO_MEM,
DMA_CTRL_ACK);
if (desc) {
reinit_completion(&host->dma_dataend);
desc->callback = tmio_mmc_dma_callback;
desc->callback = renesas_sdhi_sys_dmac_dma_callback;
desc->callback_param = host;
cookie = dmaengine_submit(desc);
@ -129,7 +212,7 @@ static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host)
pio:
if (!desc) {
/* DMA failed, fall back to PIO */
tmio_mmc_enable_dma(host, false);
renesas_sdhi_sys_dmac_enable_dma(host, false);
if (ret >= 0)
ret = -EIO;
host->chan_rx = NULL;
@ -145,7 +228,7 @@ pio:
}
}
static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host)
static void renesas_sdhi_sys_dmac_start_dma_tx(struct tmio_mmc_host *host)
{
struct scatterlist *sg = host->sg_ptr, *sg_tmp;
struct dma_async_tx_descriptor *desc = NULL;
@ -181,6 +264,7 @@ static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host)
if (!aligned) {
unsigned long flags;
void *sg_vaddr = tmio_mmc_kmap_atomic(sg, &flags);
sg_init_one(&host->bounce_sg, host->bounce_buf, sg->length);
memcpy(host->bounce_buf, sg_vaddr, host->bounce_sg.length);
tmio_mmc_kunmap_atomic(sg, &flags, sg_vaddr);
@ -190,12 +274,12 @@ static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host)
ret = dma_map_sg(chan->device->dev, sg, host->sg_len, DMA_TO_DEVICE);
if (ret > 0)
desc = dmaengine_prep_slave_sg(chan, sg, ret,
DMA_MEM_TO_DEV, DMA_CTRL_ACK);
desc = dmaengine_prep_slave_sg(chan, sg, ret, DMA_MEM_TO_DEV,
DMA_CTRL_ACK);
if (desc) {
reinit_completion(&host->dma_dataend);
desc->callback = tmio_mmc_dma_callback;
desc->callback = renesas_sdhi_sys_dmac_dma_callback;
desc->callback_param = host;
cookie = dmaengine_submit(desc);
@ -207,7 +291,7 @@ static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host)
pio:
if (!desc) {
/* DMA failed, fall back to PIO */
tmio_mmc_enable_dma(host, false);
renesas_sdhi_sys_dmac_enable_dma(host, false);
if (ret >= 0)
ret = -EIO;
host->chan_tx = NULL;
@ -223,19 +307,19 @@ pio:
}
}
void tmio_mmc_start_dma(struct tmio_mmc_host *host,
struct mmc_data *data)
static void renesas_sdhi_sys_dmac_start_dma(struct tmio_mmc_host *host,
struct mmc_data *data)
{
if (data->flags & MMC_DATA_READ) {
if (host->chan_rx)
tmio_mmc_start_dma_rx(host);
renesas_sdhi_sys_dmac_start_dma_rx(host);
} else {
if (host->chan_tx)
tmio_mmc_start_dma_tx(host);
renesas_sdhi_sys_dmac_start_dma_tx(host);
}
}
static void tmio_mmc_issue_tasklet_fn(unsigned long priv)
static void renesas_sdhi_sys_dmac_issue_tasklet_fn(unsigned long priv)
{
struct tmio_mmc_host *host = (struct tmio_mmc_host *)priv;
struct dma_chan *chan = NULL;
@ -257,11 +341,12 @@ static void tmio_mmc_issue_tasklet_fn(unsigned long priv)
dma_async_issue_pending(chan);
}
void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdata)
static void renesas_sdhi_sys_dmac_request_dma(struct tmio_mmc_host *host,
struct tmio_mmc_data *pdata)
{
/* We can only either use DMA for both Tx and Rx or not use it at all */
if (!host->dma || (!host->pdev->dev.of_node &&
(!pdata->chan_priv_tx || !pdata->chan_priv_rx)))
(!pdata->chan_priv_tx || !pdata->chan_priv_rx)))
return;
if (!host->chan_tx && !host->chan_rx) {
@ -287,7 +372,8 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat
return;
cfg.direction = DMA_MEM_TO_DEV;
cfg.dst_addr = res->start + (CTL_SD_DATA_PORT << host->bus_shift);
cfg.dst_addr = res->start +
(CTL_SD_DATA_PORT << host->bus_shift);
cfg.dst_addr_width = host->dma->dma_buswidth;
if (!cfg.dst_addr_width)
cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
@ -320,10 +406,12 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat
goto ebouncebuf;
init_completion(&host->dma_dataend);
tasklet_init(&host->dma_issue, tmio_mmc_issue_tasklet_fn, (unsigned long)host);
tasklet_init(&host->dma_issue,
renesas_sdhi_sys_dmac_issue_tasklet_fn,
(unsigned long)host);
}
tmio_mmc_enable_dma(host, true);
renesas_sdhi_sys_dmac_enable_dma(host, true);
return;
@ -337,15 +425,17 @@ ecfgtx:
host->chan_tx = NULL;
}
void tmio_mmc_release_dma(struct tmio_mmc_host *host)
static void renesas_sdhi_sys_dmac_release_dma(struct tmio_mmc_host *host)
{
if (host->chan_tx) {
struct dma_chan *chan = host->chan_tx;
host->chan_tx = NULL;
dma_release_channel(chan);
}
if (host->chan_rx) {
struct dma_chan *chan = host->chan_rx;
host->chan_rx = NULL;
dma_release_channel(chan);
}
@ -354,3 +444,41 @@ void tmio_mmc_release_dma(struct tmio_mmc_host *host)
host->bounce_buf = NULL;
}
}
static const struct tmio_mmc_dma_ops renesas_sdhi_sys_dmac_dma_ops = {
.start = renesas_sdhi_sys_dmac_start_dma,
.enable = renesas_sdhi_sys_dmac_enable_dma,
.request = renesas_sdhi_sys_dmac_request_dma,
.release = renesas_sdhi_sys_dmac_release_dma,
.abort = renesas_sdhi_sys_dmac_abort_dma,
};
static int renesas_sdhi_sys_dmac_probe(struct platform_device *pdev)
{
return renesas_sdhi_probe(pdev, &renesas_sdhi_sys_dmac_dma_ops);
}
static const struct dev_pm_ops renesas_sdhi_sys_dmac_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
SET_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend,
tmio_mmc_host_runtime_resume,
NULL)
};
static struct platform_driver renesas_sys_dmac_sdhi_driver = {
.driver = {
.name = "sh_mobile_sdhi",
.pm = &renesas_sdhi_sys_dmac_dev_pm_ops,
.of_match_table = renesas_sdhi_sys_dmac_of_match,
},
.probe = renesas_sdhi_sys_dmac_probe,
.remove = renesas_sdhi_remove,
};
module_platform_driver(renesas_sys_dmac_sdhi_driver);
MODULE_DESCRIPTION("Renesas SDHI driver");
MODULE_AUTHOR("Magnus Damm");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:sh_mobile_sdhi");

4
drivers/mmc/host/sdhci-acpi.c
View File

@ -274,7 +274,6 @@ static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = {
.caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR |
MMC_CAP_CMD_DURING_TFR | MMC_CAP_WAIT_WHILE_BUSY,
.caps2 = MMC_CAP2_HC_ERASE_SZ,
.flags = SDHCI_ACPI_RUNTIME_PM,
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
@ -396,9 +395,6 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
if (child->status.present && child->status.enabled)
acpi_device_fix_up_power(child);
if (acpi_bus_get_status(device) || !device->status.present)
return -ENODEV;
if (sdhci_acpi_byt_defer(dev))
return -EPROBE_DEFER;

3
drivers/mmc/host/sdhci-brcmstb.c
View File

@ -89,9 +89,6 @@ static int sdhci_brcmstb_probe(struct platform_device *pdev)
goto err_clk;
}
/* Enable MMC_CAP2_HC_ERASE_SZ for better max discard calculations */
host->mmc->caps2 |= MMC_CAP2_HC_ERASE_SZ;
sdhci_get_of_property(pdev);
mmc_of_parse(host->mmc);

192
drivers/mmc/host/sdhci-esdhc-imx.c
View File

@ -95,7 +95,7 @@
#define ESDHC_CTRL_BUSWIDTH_MASK (0x3 << 1)
/*
* There is an INT DMA ERR mis-match between eSDHC and STD SDHC SPEC:
* There is an INT DMA ERR mismatch between eSDHC and STD SDHC SPEC:
* Bit25 is used in STD SPEC, and is reserved in fsl eSDHC design,
* but bit28 is used as the INT DMA ERR in fsl eSDHC design.
* Define this macro DMA error INT for fsl eSDHC
@ -110,15 +110,10 @@
* In exact block transfer, the controller doesn't complete the
* operations automatically as required at the end of the
* transfer and remains on hold if the abort command is not sent.
* As a result, the TC flag is not asserted and SW received timeout
* exeception. Bit1 of Vendor Spec registor is used to fix it.
* As a result, the TC flag is not asserted and SW received timeout
* exception. Bit1 of Vendor Spec register is used to fix it.
*/
#define ESDHC_FLAG_MULTIBLK_NO_INT BIT(1)
/*
* The flag enables the workaround for ESDHC errata ENGcm07207 which
* affects i.MX25 and i.MX35.
*/
#define ESDHC_FLAG_ENGCM07207 BIT(2)
/*
* The flag tells that the ESDHC controller is an USDHC block that is
* integrated on the i.MX6 series.
@ -131,9 +126,11 @@
/* The IP has SDHCI_CAPABILITIES_1 register */
#define ESDHC_FLAG_HAVE_CAP1 BIT(6)
/*
* The IP has errata ERR004536
* The IP has erratum ERR004536
* uSDHC: ADMA Length Mismatch Error occurs if the AHB read access is slow,
* when reading data from the card
* This flag is also set for i.MX25 and i.MX35 in order to get
* SDHCI_QUIRK_BROKEN_ADMA, but for different reasons (ADMA capability bits).
*/
#define ESDHC_FLAG_ERR004536 BIT(7)
/* The IP supports HS200 mode */
@ -141,7 +138,7 @@
/* The IP supports HS400 mode */
#define ESDHC_FLAG_HS400 BIT(9)
/* A higher clock ferquency than this rate requires strobell dll control */
/* A clock frequency higher than this rate requires strobe dll control */
#define ESDHC_STROBE_DLL_CLK_FREQ 100000000
struct esdhc_soc_data {
@ -149,11 +146,11 @@ struct esdhc_soc_data {
};
static struct esdhc_soc_data esdhc_imx25_data = {
.flags = ESDHC_FLAG_ENGCM07207,
.flags = ESDHC_FLAG_ERR004536,
};
static struct esdhc_soc_data esdhc_imx35_data = {
.flags = ESDHC_FLAG_ENGCM07207,
.flags = ESDHC_FLAG_ERR004536,
};
static struct esdhc_soc_data esdhc_imx51_data = {
@ -197,7 +194,7 @@ struct pltfm_imx_data {
struct clk *clk_ahb;
struct clk *clk_per;
enum {
NO_CMD_PENDING, /* no multiblock command pending*/
NO_CMD_PENDING, /* no multiblock command pending */
MULTIBLK_IN_PROCESS, /* exact multiblock cmd in process */
WAIT_FOR_INT, /* sent CMD12, waiting for response INT */
} multiblock_status;
@ -286,7 +283,7 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg)
* ADMA2 capability of esdhc, but this bit is messed up on
* some SOCs (e.g. on MX25, MX35 this bit is set, but they
* don't actually support ADMA2). So set the BROKEN_ADMA
* uirk on MX25/35 platforms.
* quirk on MX25/35 platforms.
*/
if (val & SDHCI_CAN_DO_ADMA1) {
@ -351,7 +348,7 @@ static void esdhc_writel_le(struct sdhci_host *host, u32 val, int reg)
if ((val & SDHCI_INT_CARD_INT) && !esdhc_is_usdhc(imx_data)) {
/*
* Clear and then set D3CD bit to avoid missing the
* card interrupt. This is a eSDHC controller problem
* card interrupt. This is an eSDHC controller problem
* so we need to apply the following workaround: clear
* and set D3CD bit will make eSDHC re-sample the card
* interrupt. In case a card interrupt was lost,
@ -579,7 +576,7 @@ static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
u32 new_val;
u32 new_val = 0;
u32 mask;
switch (reg) {
@ -604,35 +601,52 @@ static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg)
* Do not touch buswidth bits here. This is done in
* esdhc_pltfm_bus_width.
* Do not touch the D3CD bit either which is used for the
* SDIO interrupt errata workaround.
* SDIO interrupt erratum workaround.
*/
mask = 0xffff & ~(ESDHC_CTRL_BUSWIDTH_MASK | ESDHC_CTRL_D3CD);
esdhc_clrset_le(host, mask, new_val, reg);
return;
case SDHCI_SOFTWARE_RESET:
if (val & SDHCI_RESET_DATA)
new_val = readl(host->ioaddr + SDHCI_HOST_CONTROL);
break;
}
esdhc_clrset_le(host, 0xff, val, reg);
/*
* The esdhc has a design violation to SDHC spec which tells
* that software reset should not affect card detection circuit.
* But esdhc clears its SYSCTL register bits [0..2] during the
* software reset. This will stop those clocks that card detection
* circuit relies on. To work around it, we turn the clocks on back
* to keep card detection circuit functional.
*/
if ((reg == SDHCI_SOFTWARE_RESET) && (val & 1)) {
esdhc_clrset_le(host, 0x7, 0x7, ESDHC_SYSTEM_CONTROL);
/*
* The reset on usdhc fails to clear MIX_CTRL register.
* Do it manually here.
*/
if (esdhc_is_usdhc(imx_data)) {
/* the tuning bits should be kept during reset */
new_val = readl(host->ioaddr + ESDHC_MIX_CTRL);
writel(new_val & ESDHC_MIX_CTRL_TUNING_MASK,
host->ioaddr + ESDHC_MIX_CTRL);
imx_data->is_ddr = 0;
if (reg == SDHCI_SOFTWARE_RESET) {
if (val & SDHCI_RESET_ALL) {
/*
* The esdhc has a design violation to SDHC spec which
* tells that software reset should not affect card
* detection circuit. But esdhc clears its SYSCTL
* register bits [0..2] during the software reset. This
* will stop those clocks that card detection circuit
* relies on. To work around it, we turn the clocks on
* back to keep card detection circuit functional.
*/
esdhc_clrset_le(host, 0x7, 0x7, ESDHC_SYSTEM_CONTROL);
/*
* The reset on usdhc fails to clear MIX_CTRL register.
* Do it manually here.
*/
if (esdhc_is_usdhc(imx_data)) {
/*
* the tuning bits should be kept during reset
*/
new_val = readl(host->ioaddr + ESDHC_MIX_CTRL);
writel(new_val & ESDHC_MIX_CTRL_TUNING_MASK,
host->ioaddr + ESDHC_MIX_CTRL);
imx_data->is_ddr = 0;
}
} else if (val & SDHCI_RESET_DATA) {
/*
* The eSDHC DAT line software reset clears at least the
* data transfer width on i.MX25, so make sure that the
* Host Control register is unaffected.
*/
esdhc_clrset_le(host, 0xff, new_val,
SDHCI_HOST_CONTROL);
}
}
}
@ -657,7 +671,8 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
unsigned int host_clock = pltfm_host->clock;
int pre_div = 2;
int ddr_pre_div = imx_data->is_ddr ? 2 : 1;
int pre_div = 1;
int div = 1;
u32 temp, val;
@ -672,28 +687,23 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
return;
}
if (esdhc_is_usdhc(imx_data) && !imx_data->is_ddr)
pre_div = 1;
temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
temp &= ~(ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN
| ESDHC_CLOCK_MASK);
sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
while (host_clock / pre_div / 16 > clock && pre_div < 256)
while (host_clock / (16 * pre_div * ddr_pre_div) > clock &&
pre_div < 256)
pre_div *= 2;
while (host_clock / pre_div / div > clock && div < 16)
while (host_clock / (div * pre_div * ddr_pre_div) > clock && div < 16)
div++;
host->mmc->actual_clock = host_clock / pre_div / div;
host->mmc->actual_clock = host_clock / (div * pre_div * ddr_pre_div);
dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n",
clock, host->mmc->actual_clock);
if (imx_data->is_ddr)
pre_div >>= 2;
else
pre_div >>= 1;
pre_div >>= 1;
div--;
temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
@ -763,7 +773,7 @@ static void esdhc_prepare_tuning(struct sdhci_host *host, u32 val)
writel(reg, host->ioaddr + ESDHC_MIX_CTRL);
writel(val << 8, host->ioaddr + ESDHC_TUNE_CTRL_STATUS);
dev_dbg(mmc_dev(host->mmc),
"tunning with delay 0x%x ESDHC_TUNE_CTRL_STATUS 0x%x\n",
"tuning with delay 0x%x ESDHC_TUNE_CTRL_STATUS 0x%x\n",
val, readl(host->ioaddr + ESDHC_TUNE_CTRL_STATUS));
}
@ -807,7 +817,7 @@ static int esdhc_executing_tuning(struct sdhci_host *host, u32 opcode)
ret = mmc_send_tuning(host->mmc, opcode, NULL);
esdhc_post_tuning(host);
dev_dbg(mmc_dev(host->mmc), "tunning %s at 0x%x ret %d\n",
dev_dbg(mmc_dev(host->mmc), "tuning %s at 0x%x ret %d\n",
ret ? "failed" : "passed", avg, ret);
return ret;
@ -847,15 +857,15 @@ static int esdhc_change_pinstate(struct sdhci_host *host,
}
/*
* For HS400 eMMC, there is a data_strobe line, this signal is generated
* For HS400 eMMC, there is a data_strobe line. This signal is generated
* by the device and used for data output and CRC status response output
* in HS400 mode. The frequency of this signal follows the frequency of
* CLK generated by host. Host receive the data which is aligned to the
* CLK generated by host. The host receives the data which is aligned to the
* edge of data_strobe line. Due to the time delay between CLK line and
* data_strobe line, if the delay time is larger than one clock cycle,
* then CLK and data_strobe line will misaligned, read error shows up.
* then CLK and data_strobe line will be misaligned, read error shows up.
* So when the CLK is higher than 100MHz, each clock cycle is short enough,
* host should config the delay target.
* host should configure the delay target.
*/
static void esdhc_set_strobe_dll(struct sdhci_host *host)
{
@ -895,7 +905,7 @@ static void esdhc_reset_tuning(struct sdhci_host *host)
struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
u32 ctrl;
/* Rest the tuning circurt */
/* Reset the tuning circuit */
if (esdhc_is_usdhc(imx_data)) {
if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) {
ctrl = readl(host->ioaddr + ESDHC_MIX_CTRL);
@ -976,7 +986,7 @@ static unsigned int esdhc_get_max_timeout_count(struct sdhci_host *host)
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
/* Doc Errata: the uSDHC actual maximum timeout count is 1 << 29 */
/* Doc Erratum: the uSDHC actual maximum timeout count is 1 << 29 */
return esdhc_is_usdhc(imx_data) ? 1 << 29 : 1 << 27;
}
@ -1032,10 +1042,10 @@ static void sdhci_esdhc_imx_hwinit(struct sdhci_host *host)
/*
* ROM code will change the bit burst_length_enable setting
* to zero if this usdhc is choosed to boot system. Change
* to zero if this usdhc is chosen to boot system. Change
* it back here, otherwise it will impact the performance a
* lot. This bit is used to enable/disable the burst length
* for the external AHB2AXI bridge, it's usefully especially
* for the external AHB2AXI bridge. It's useful especially
* for INCR transfer because without burst length indicator,
* the AHB2AXI bridge does not know the burst length in
* advance. And without burst length indicator, AHB INCR
@ -1045,7 +1055,7 @@ static void sdhci_esdhc_imx_hwinit(struct sdhci_host *host)
| ESDHC_BURST_LEN_EN_INCR,
host->ioaddr + SDHCI_HOST_CONTROL);
/*
* errata ESDHC_FLAG_ERR004536 fix for MX6Q TO1.2 and MX6DL
* erratum ESDHC_FLAG_ERR004536 fix for MX6Q TO1.2 and MX6DL
* TO1.1, it's harmless for MX6SL
*/
writel(readl(host->ioaddr + 0x6c) | BIT(7),
@ -1104,7 +1114,7 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
mmc_of_parse_voltage(np, &host->ocr_mask);
/* sdr50 and sdr104 needs work on 1.8v signal voltage */
/* sdr50 and sdr104 need work on 1.8v signal voltage */
if ((boarddata->support_vsel) && esdhc_is_usdhc(imx_data) &&
!IS_ERR(imx_data->pins_default)) {
imx_data->pins_100mhz = pinctrl_lookup_state(imx_data->pinctrl,
@ -1116,7 +1126,8 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
dev_warn(mmc_dev(host->mmc),
"could not get ultra high speed state, work on normal mode\n");
/*
* fall back to not support uhs by specify no 1.8v quirk
* fall back to not supporting uhs by specifying no
* 1.8v quirk
*/
host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
}
@ -1250,14 +1261,20 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
pltfm_host->clk = imx_data->clk_per;
pltfm_host->clock = clk_get_rate(pltfm_host->clk);
clk_prepare_enable(imx_data->clk_per);
clk_prepare_enable(imx_data->clk_ipg);
clk_prepare_enable(imx_data->clk_ahb);
err = clk_prepare_enable(imx_data->clk_per);
if (err)
goto free_sdhci;
err = clk_prepare_enable(imx_data->clk_ipg);
if (err)
goto disable_per_clk;
err = clk_prepare_enable(imx_data->clk_ahb);
if (err)
goto disable_ipg_clk;
imx_data->pinctrl = devm_pinctrl_get(&pdev->dev);
if (IS_ERR(imx_data->pinctrl)) {
err = PTR_ERR(imx_data->pinctrl);
goto disable_clk;
goto disable_ahb_clk;
}
imx_data->pins_default = pinctrl_lookup_state(imx_data->pinctrl,
@ -1265,11 +1282,6 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
if (IS_ERR(imx_data->pins_default))
dev_warn(mmc_dev(host->mmc), "could not get default state\n");
if (imx_data->socdata->flags & ESDHC_FLAG_ENGCM07207)
/* Fix errata ENGcm07207 present on i.MX25 and i.MX35 */
host->quirks |= SDHCI_QUIRK_NO_MULTIBLOCK
| SDHCI_QUIRK_BROKEN_ADMA;
if (esdhc_is_usdhc(imx_data)) {
host->quirks2 |= SDHCI_QUIRK2_PRESET_VALUE_BROKEN;
host->mmc->caps |= MMC_CAP_1_8V_DDR;
@ -1297,13 +1309,13 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
else
err = sdhci_esdhc_imx_probe_nondt(pdev, host, imx_data);
if (err)
goto disable_clk;
goto disable_ahb_clk;
sdhci_esdhc_imx_hwinit(host);
err = sdhci_add_host(host);
if (err)
goto disable_clk;
goto disable_ahb_clk;
pm_runtime_set_active(&pdev->dev);
pm_runtime_set_autosuspend_delay(&pdev->dev, 50);
@ -1313,10 +1325,12 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
return 0;
disable_clk:
clk_disable_unprepare(imx_data->clk_per);
clk_disable_unprepare(imx_data->clk_ipg);
disable_ahb_clk:
clk_disable_unprepare(imx_data->clk_ahb);
disable_ipg_clk:
clk_disable_unprepare(imx_data->clk_ipg);
disable_per_clk:
clk_disable_unprepare(imx_data->clk_per);
free_sdhci:
sdhci_pltfm_free(pdev);
return err;
@ -1393,14 +1407,34 @@ static int sdhci_esdhc_runtime_resume(struct device *dev)
struct sdhci_host *host = dev_get_drvdata(dev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
int err;
if (!sdhci_sdio_irq_enabled(host)) {
clk_prepare_enable(imx_data->clk_per);
clk_prepare_enable(imx_data->clk_ipg);
err = clk_prepare_enable(imx_data->clk_per);
if (err)
return err;
err = clk_prepare_enable(imx_data->clk_ipg);
if (err)
goto disable_per_clk;
}
clk_prepare_enable(imx_data->clk_ahb);
err = clk_prepare_enable(imx_data->clk_ahb);
if (err)
goto disable_ipg_clk;
err = sdhci_runtime_resume_host(host);
if (err)
goto disable_ahb_clk;
return sdhci_runtime_resume_host(host);
return 0;
disable_ahb_clk:
clk_disable_unprepare(imx_data->clk_ahb);
disable_ipg_clk:
if (!sdhci_sdio_irq_enabled(host))
clk_disable_unprepare(imx_data->clk_ipg);
disable_per_clk:
if (!sdhci_sdio_irq_enabled(host))
clk_disable_unprepare(imx_data->clk_per);
return err;
}
#endif

1
drivers/mmc/host/sdhci-esdhc.h
View File

@ -19,6 +19,7 @@
*/
#define ESDHC_DEFAULT_QUIRKS (SDHCI_QUIRK_FORCE_BLK_SZ_2048 | \
SDHCI_QUIRK_32BIT_DMA_ADDR | \
SDHCI_QUIRK_NO_BUSY_IRQ | \
SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | \
SDHCI_QUIRK_PIO_NEEDS_DELAY | \

2
drivers/mmc/host/sdhci-of-arasan.c
View File

@ -638,7 +638,7 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
ret = mmc_of_parse(host->mmc);
if (ret) {
dev_err(&pdev->dev, "parsing dt failed (%u)\n", ret);
dev_err(&pdev->dev, "parsing dt failed (%d)\n", ret);
goto unreg_clk;
}

668
drivers/mmc/host/sdhci-pci-core.c
View File

@ -347,8 +347,7 @@ static inline void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot)
{
slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE;
slot->host->mmc->caps2 |= MMC_CAP2_BOOTPART_NOACC |
MMC_CAP2_HC_ERASE_SZ;
slot->host->mmc->caps2 |= MMC_CAP2_BOOTPART_NOACC;
return 0;
}
@ -542,6 +541,23 @@ static void sdhci_intel_set_power(struct sdhci_host *host, unsigned char mode,
}
}
#define INTEL_HS400_ES_REG 0x78
#define INTEL_HS400_ES_BIT BIT(0)
static void intel_hs400_enhanced_strobe(struct mmc_host *mmc,
struct mmc_ios *ios)
{
struct sdhci_host *host = mmc_priv(mmc);
u32 val;
val = sdhci_readl(host, INTEL_HS400_ES_REG);
if (ios->enhanced_strobe)
val |= INTEL_HS400_ES_BIT;
else
val &= ~INTEL_HS400_ES_BIT;
sdhci_writel(host, val, INTEL_HS400_ES_REG);
}
static const struct sdhci_ops sdhci_intel_byt_ops = {
.set_clock = sdhci_set_clock,
.set_power = sdhci_intel_set_power,
@ -569,7 +585,6 @@ static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR |
MMC_CAP_CMD_DURING_TFR |
MMC_CAP_WAIT_WHILE_BUSY;
slot->host->mmc->caps2 |= MMC_CAP2_HC_ERASE_SZ;
slot->hw_reset = sdhci_pci_int_hw_reset;
if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BSW_EMMC)
slot->host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */
@ -578,6 +593,19 @@ static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
return 0;
}
static int glk_emmc_probe_slot(struct sdhci_pci_slot *slot)
{
int ret = byt_emmc_probe_slot(slot);
if (slot->chip->pdev->device != PCI_DEVICE_ID_INTEL_GLK_EMMC) {
slot->host->mmc->caps2 |= MMC_CAP2_HS400_ES,
slot->host->mmc_host_ops.hs400_enhanced_strobe =
intel_hs400_enhanced_strobe;
}
return ret;
}
#ifdef CONFIG_ACPI
static int ni_set_max_freq(struct sdhci_pci_slot *slot)
{
@ -630,7 +658,7 @@ static int byt_sd_probe_slot(struct sdhci_pci_slot *slot)
{
byt_read_dsm(slot);
slot->host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY |
MMC_CAP_AGGRESSIVE_PM;
MMC_CAP_AGGRESSIVE_PM | MMC_CAP_CD_WAKE;
slot->cd_idx = 0;
slot->cd_override_level = true;
if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXT_SD ||
@ -653,6 +681,17 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = {
.priv_size = sizeof(struct intel_host),
};
static const struct sdhci_pci_fixes sdhci_intel_glk_emmc = {
.allow_runtime_pm = true,
.probe_slot = glk_emmc_probe_slot,
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 |
SDHCI_QUIRK2_STOP_WITH_TC,
.ops = &sdhci_intel_byt_ops,
.priv_size = sizeof(struct intel_host),
};
static const struct sdhci_pci_fixes sdhci_ni_byt_sdio = {
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
.quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON |
@ -1170,554 +1209,79 @@ static const struct sdhci_pci_fixes sdhci_amd = {
};
static const struct pci_device_id pci_ids[] = {
{
.vendor = PCI_VENDOR_ID_RICOH,
.device = PCI_DEVICE_ID_RICOH_R5C822,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_ricoh,
},
{
.vendor = PCI_VENDOR_ID_RICOH,
.device = 0x843,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc,
},
{
.vendor = PCI_VENDOR_ID_RICOH,
.device = 0xe822,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc,
},
{
.vendor = PCI_VENDOR_ID_RICOH,
.device = 0xe823,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc,
},
{
.vendor = PCI_VENDOR_ID_ENE,
.device = PCI_DEVICE_ID_ENE_CB712_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_ene_712,
},
{
.vendor = PCI_VENDOR_ID_ENE,
.device = PCI_DEVICE_ID_ENE_CB712_SD_2,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_ene_712,
},
{
.vendor = PCI_VENDOR_ID_ENE,
.device = PCI_DEVICE_ID_ENE_CB714_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_ene_714,
},
{
.vendor = PCI_VENDOR_ID_ENE,
.device = PCI_DEVICE_ID_ENE_CB714_SD_2,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_ene_714,
},
{
.vendor = PCI_VENDOR_ID_MARVELL,
.device = PCI_DEVICE_ID_MARVELL_88ALP01_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_cafe,
},
{
.vendor = PCI_VENDOR_ID_JMICRON,
.device = PCI_DEVICE_ID_JMICRON_JMB38X_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_jmicron,
},
{
.vendor = PCI_VENDOR_ID_JMICRON,
.device = PCI_DEVICE_ID_JMICRON_JMB38X_MMC,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_jmicron,
},
{
.vendor = PCI_VENDOR_ID_JMICRON,
.device = PCI_DEVICE_ID_JMICRON_JMB388_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_jmicron,
},
{
.vendor = PCI_VENDOR_ID_JMICRON,
.device = PCI_DEVICE_ID_JMICRON_JMB388_ESD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_jmicron,
},
{
.vendor = PCI_VENDOR_ID_SYSKONNECT,
.device = 0x8000,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_syskt,
},
{
.vendor = PCI_VENDOR_ID_VIA,
.device = 0x95d0,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_via,
},
{
.vendor = PCI_VENDOR_ID_REALTEK,
.device = 0x5250,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_rtsx,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_QRK_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_qrk,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_MRST_SD0,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc0,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_MRST_SD1,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc1_hc2,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_MRST_SD2,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc1_hc2,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_MFD_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sd,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_MFD_SDIO1,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_MFD_SDIO2,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_MFD_EMMC0,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_MFD_EMMC1,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_PCH_SDIO0,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_pch_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_PCH_SDIO1,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_pch_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BYT_EMMC,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BYT_SDIO,
.subvendor = PCI_VENDOR_ID_NI,
.subdevice = 0x7884,
.driver_data = (kernel_ulong_t)&sdhci_ni_byt_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BYT_SDIO,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BYT_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BYT_EMMC2,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BSW_EMMC,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BSW_SDIO,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BSW_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_CLV_SDIO0,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sd,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_CLV_SDIO1,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_CLV_SDIO2,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_CLV_EMMC0,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_CLV_EMMC1,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_MRFLD_MMC,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_mrfld_mmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_SPT_EMMC,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_SPT_SDIO,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_SPT_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_DNV_EMMC,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BXT_EMMC,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BXT_SDIO,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BXT_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BXTM_EMMC,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BXTM_SDIO,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BXTM_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_APL_EMMC,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_APL_SDIO,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_APL_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_GLK_EMMC,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_GLK_SDIO,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_GLK_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
},
{
.vendor = PCI_VENDOR_ID_O2,
.device = PCI_DEVICE_ID_O2_8120,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_o2,
},
{
.vendor = PCI_VENDOR_ID_O2,
.device = PCI_DEVICE_ID_O2_8220,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_o2,
},
{
.vendor = PCI_VENDOR_ID_O2,
.device = PCI_DEVICE_ID_O2_8221,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_o2,
},
{
.vendor = PCI_VENDOR_ID_O2,
.device = PCI_DEVICE_ID_O2_8320,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_o2,
},
{
.vendor = PCI_VENDOR_ID_O2,
.device = PCI_DEVICE_ID_O2_8321,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_o2,
},
{
.vendor = PCI_VENDOR_ID_O2,
.device = PCI_DEVICE_ID_O2_FUJIN2,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_o2,
},
{
.vendor = PCI_VENDOR_ID_O2,
.device = PCI_DEVICE_ID_O2_SDS0,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_o2,
},
{
.vendor = PCI_VENDOR_ID_O2,
.device = PCI_DEVICE_ID_O2_SDS1,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_o2,
},
{
.vendor = PCI_VENDOR_ID_O2,
.device = PCI_DEVICE_ID_O2_SEABIRD0,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_o2,
},
{
.vendor = PCI_VENDOR_ID_O2,
.device = PCI_DEVICE_ID_O2_SEABIRD1,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_o2,
},
{
.vendor = PCI_VENDOR_ID_AMD,
.device = PCI_ANY_ID,
.class = PCI_CLASS_SYSTEM_SDHCI << 8,
.class_mask = 0xFFFF00,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_amd,
},
{ /* Generic SD host controller */
PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00)
},
SDHCI_PCI_DEVICE(RICOH, R5C822, ricoh),
SDHCI_PCI_DEVICE(RICOH, R5C843, ricoh_mmc),
SDHCI_PCI_DEVICE(RICOH, R5CE822, ricoh_mmc),
SDHCI_PCI_DEVICE(RICOH, R5CE823, ricoh_mmc),
SDHCI_PCI_DEVICE(ENE, CB712_SD, ene_712),
SDHCI_PCI_DEVICE(ENE, CB712_SD_2, ene_712),
SDHCI_PCI_DEVICE(ENE, CB714_SD, ene_714),
SDHCI_PCI_DEVICE(ENE, CB714_SD_2, ene_714),
SDHCI_PCI_DEVICE(MARVELL, 88ALP01_SD, cafe),
SDHCI_PCI_DEVICE(JMICRON, JMB38X_SD, jmicron),
SDHCI_PCI_DEVICE(JMICRON, JMB38X_MMC, jmicron),
SDHCI_PCI_DEVICE(JMICRON, JMB388_SD, jmicron),
SDHCI_PCI_DEVICE(JMICRON, JMB388_ESD, jmicron),
SDHCI_PCI_DEVICE(SYSKONNECT, 8000, syskt),
SDHCI_PCI_DEVICE(VIA, 95D0, via),
SDHCI_PCI_DEVICE(REALTEK, 5250, rtsx),
SDHCI_PCI_DEVICE(INTEL, QRK_SD, intel_qrk),
SDHCI_PCI_DEVICE(INTEL, MRST_SD0, intel_mrst_hc0),
SDHCI_PCI_DEVICE(INTEL, MRST_SD1, intel_mrst_hc1_hc2),
SDHCI_PCI_DEVICE(INTEL, MRST_SD2, intel_mrst_hc1_hc2),
SDHCI_PCI_DEVICE(INTEL, MFD_SD, intel_mfd_sd),
SDHCI_PCI_DEVICE(INTEL, MFD_SDIO1, intel_mfd_sdio),
SDHCI_PCI_DEVICE(INTEL, MFD_SDIO2, intel_mfd_sdio),
SDHCI_PCI_DEVICE(INTEL, MFD_EMMC0, intel_mfd_emmc),
SDHCI_PCI_DEVICE(INTEL, MFD_EMMC1, intel_mfd_emmc),
SDHCI_PCI_DEVICE(INTEL, PCH_SDIO0, intel_pch_sdio),
SDHCI_PCI_DEVICE(INTEL, PCH_SDIO1, intel_pch_sdio),
SDHCI_PCI_DEVICE(INTEL, BYT_EMMC, intel_byt_emmc),
SDHCI_PCI_SUBDEVICE(INTEL, BYT_SDIO, NI, 7884, ni_byt_sdio),
SDHCI_PCI_DEVICE(INTEL, BYT_SDIO, intel_byt_sdio),
SDHCI_PCI_DEVICE(INTEL, BYT_SD, intel_byt_sd),
SDHCI_PCI_DEVICE(INTEL, BYT_EMMC2, intel_byt_emmc),
SDHCI_PCI_DEVICE(INTEL, BSW_EMMC, intel_byt_emmc),
SDHCI_PCI_DEVICE(INTEL, BSW_SDIO, intel_byt_sdio),
SDHCI_PCI_DEVICE(INTEL, BSW_SD, intel_byt_sd),
SDHCI_PCI_DEVICE(INTEL, CLV_SDIO0, intel_mfd_sd),
SDHCI_PCI_DEVICE(INTEL, CLV_SDIO1, intel_mfd_sdio),
SDHCI_PCI_DEVICE(INTEL, CLV_SDIO2, intel_mfd_sdio),
SDHCI_PCI_DEVICE(INTEL, CLV_EMMC0, intel_mfd_emmc),
SDHCI_PCI_DEVICE(INTEL, CLV_EMMC1, intel_mfd_emmc),
SDHCI_PCI_DEVICE(INTEL, MRFLD_MMC, intel_mrfld_mmc),
SDHCI_PCI_DEVICE(INTEL, SPT_EMMC, intel_byt_emmc),
SDHCI_PCI_DEVICE(INTEL, SPT_SDIO, intel_byt_sdio),
SDHCI_PCI_DEVICE(INTEL, SPT_SD, intel_byt_sd),
SDHCI_PCI_DEVICE(INTEL, DNV_EMMC, intel_byt_emmc),
SDHCI_PCI_DEVICE(INTEL, BXT_EMMC, intel_byt_emmc),
SDHCI_PCI_DEVICE(INTEL, BXT_SDIO, intel_byt_sdio),
SDHCI_PCI_DEVICE(INTEL, BXT_SD, intel_byt_sd),
SDHCI_PCI_DEVICE(INTEL, BXTM_EMMC, intel_byt_emmc),
SDHCI_PCI_DEVICE(INTEL, BXTM_SDIO, intel_byt_sdio),
SDHCI_PCI_DEVICE(INTEL, BXTM_SD, intel_byt_sd),
SDHCI_PCI_DEVICE(INTEL, APL_EMMC, intel_byt_emmc),
SDHCI_PCI_DEVICE(INTEL, APL_SDIO, intel_byt_sdio),
SDHCI_PCI_DEVICE(INTEL, APL_SD, intel_byt_sd),
SDHCI_PCI_DEVICE(INTEL, GLK_EMMC, intel_glk_emmc),
SDHCI_PCI_DEVICE(INTEL, GLK_SDIO, intel_byt_sdio),
SDHCI_PCI_DEVICE(INTEL, GLK_SD, intel_byt_sd),
SDHCI_PCI_DEVICE(INTEL, CNP_EMMC, intel_glk_emmc),
SDHCI_PCI_DEVICE(INTEL, CNP_SD, intel_byt_sd),
SDHCI_PCI_DEVICE(INTEL, CNPH_SD, intel_byt_sd),
SDHCI_PCI_DEVICE(O2, 8120, o2),
SDHCI_PCI_DEVICE(O2, 8220, o2),
SDHCI_PCI_DEVICE(O2, 8221, o2),
SDHCI_PCI_DEVICE(O2, 8320, o2),
SDHCI_PCI_DEVICE(O2, 8321, o2),
SDHCI_PCI_DEVICE(O2, FUJIN2, o2),
SDHCI_PCI_DEVICE(O2, SDS0, o2),
SDHCI_PCI_DEVICE(O2, SDS1, o2),
SDHCI_PCI_DEVICE(O2, SEABIRD0, o2),
SDHCI_PCI_DEVICE(O2, SEABIRD1, o2),
SDHCI_PCI_DEVICE_CLASS(AMD, SYSTEM_SDHCI, PCI_CLASS_MASK, amd),
/* Generic SD host controller */
{PCI_DEVICE_CLASS(SYSTEM_SDHCI, PCI_CLASS_MASK)},
{ /* end: all zeroes */ },
};

46
drivers/mmc/host/sdhci-pci.h
View File

@ -2,7 +2,7 @@
#define __SDHCI_PCI_H
/*
* PCI device IDs
* PCI device IDs, sub IDs
*/
#define PCI_DEVICE_ID_INTEL_PCH_SDIO0 0x8809
@ -37,6 +37,50 @@
#define PCI_DEVICE_ID_INTEL_GLK_SD 0x31ca
#define PCI_DEVICE_ID_INTEL_GLK_EMMC 0x31cc
#define PCI_DEVICE_ID_INTEL_GLK_SDIO 0x31d0
#define PCI_DEVICE_ID_INTEL_CNP_EMMC 0x9dc4
#define PCI_DEVICE_ID_INTEL_CNP_SD 0x9df5
#define PCI_DEVICE_ID_INTEL_CNPH_SD 0xa375
#define PCI_DEVICE_ID_SYSKONNECT_8000 0x8000
#define PCI_DEVICE_ID_VIA_95D0 0x95d0
#define PCI_DEVICE_ID_REALTEK_5250 0x5250
#define PCI_SUBDEVICE_ID_NI_7884 0x7884
/*
* PCI device class and mask
*/
#define SYSTEM_SDHCI (PCI_CLASS_SYSTEM_SDHCI << 8)
#define PCI_CLASS_MASK 0xFFFF00
/*
* Macros for PCI device-description
*/
#define _PCI_VEND(vend) PCI_VENDOR_ID_##vend
#define _PCI_DEV(vend, dev) PCI_DEVICE_ID_##vend##_##dev
#define _PCI_SUBDEV(subvend, subdev) PCI_SUBDEVICE_ID_##subvend##_##subdev
#define SDHCI_PCI_DEVICE(vend, dev, cfg) { \
.vendor = _PCI_VEND(vend), .device = _PCI_DEV(vend, dev), \
.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, \
.driver_data = (kernel_ulong_t)&(sdhci_##cfg) \
}
#define SDHCI_PCI_SUBDEVICE(vend, dev, subvend, subdev, cfg) { \
.vendor = _PCI_VEND(vend), .device = _PCI_DEV(vend, dev), \
.subvendor = _PCI_VEND(subvend), \
.subdevice = _PCI_SUBDEV(subvend, subdev), \
.driver_data = (kernel_ulong_t)&(sdhci_##cfg) \
}
#define SDHCI_PCI_DEVICE_CLASS(vend, cl, cl_msk, cfg) { \
.vendor = _PCI_VEND(vend), .device = PCI_ANY_ID, \
.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, \
.class = (cl), .class_mask = (cl_msk), \
.driver_data = (kernel_ulong_t)&(sdhci_##cfg) \
}
/*
* PCI registers

3
drivers/mmc/host/sdricoh_cs.c
View File

@ -256,9 +256,6 @@ static int sdricoh_blockio(struct sdricoh_host *host, int read,
}
}
if (len)
return -EIO;
return 0;
}

20
drivers/mmc/host/tmio_mmc.c
View File

@ -1,16 +1,16 @@
/*
* linux/drivers/mmc/host/tmio_mmc.c
* Driver for the MMC / SD / SDIO cell found in:
*
* TC6393XB TC6391XB TC6387XB T7L66XB ASIC3
*
* Copyright (C) 2017 Renesas Electronics Corporation
* Copyright (C) 2017 Horms Solutions, Simon Horman
* Copyright (C) 2007 Ian Molton
* Copyright (C) 2004 Ian Molton
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Driver for the MMC / SD / SDIO cell found in:
*
* TC6393XB TC6391XB TC6387XB T7L66XB ASIC3
*/
#include <linux/device.h>
@ -99,13 +99,13 @@ static int tmio_mmc_probe(struct platform_device *pdev)
/* SD control register space size is 0x200, 0x400 for bus_shift=1 */
host->bus_shift = resource_size(res) >> 10;
ret = tmio_mmc_host_probe(host, pdata);
ret = tmio_mmc_host_probe(host, pdata, NULL);
if (ret)
goto host_free;
ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_irq,
IRQF_TRIGGER_FALLING,
dev_name(&pdev->dev), host);
IRQF_TRIGGER_FALLING,
dev_name(&pdev->dev), host);
if (ret)
goto host_remove;
@ -132,6 +132,7 @@ static int tmio_mmc_remove(struct platform_device *pdev)
if (mmc) {
struct tmio_mmc_host *host = mmc_priv(mmc);
tmio_mmc_host_remove(host);
if (cell->disable)
cell->disable(pdev);
@ -145,8 +146,7 @@ static int tmio_mmc_remove(struct platform_device *pdev)
static const struct dev_pm_ops tmio_mmc_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(tmio_mmc_suspend, tmio_mmc_resume)
SET_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend,
tmio_mmc_host_runtime_resume,
NULL)
tmio_mmc_host_runtime_resume, NULL)
};
static struct platform_driver tmio_mmc_driver = {

75
drivers/mmc/host/tmio_mmc.h
View File

@ -1,8 +1,11 @@
/*
* linux/drivers/mmc/host/tmio_mmc.h
* Driver for the MMC / SD / SDIO cell found in:
*
* Copyright (C) 2016 Sang Engineering, Wolfram Sang
* Copyright (C) 2015-16 Renesas Electronics Corporation
* TC6393XB TC6391XB TC6387XB T7L66XB ASIC3
*
* Copyright (C) 2015-17 Renesas Electronics Corporation
* Copyright (C) 2016-17 Sang Engineering, Wolfram Sang
* Copyright (C) 2016-17 Horms Solutions, Simon Horman
* Copyright (C) 2007 Ian Molton
* Copyright (C) 2004 Ian Molton
*
@ -10,9 +13,6 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Driver for the MMC / SD / SDIO cell found in:
*
* TC6393XB TC6391XB TC6387XB T7L66XB ASIC3
*/
#ifndef TMIO_MMC_H
@ -115,6 +115,15 @@ struct tmio_mmc_dma {
void (*enable)(struct tmio_mmc_host *host, bool enable);
};
struct tmio_mmc_dma_ops {
void (*start)(struct tmio_mmc_host *host, struct mmc_data *data);
void (*enable)(struct tmio_mmc_host *host, bool enable);
void (*request)(struct tmio_mmc_host *host,
struct tmio_mmc_data *pdata);
void (*release)(struct tmio_mmc_host *host);
void (*abort)(struct tmio_mmc_host *host);
};
struct tmio_mmc_host {
void __iomem *ctl;
struct mmc_command *cmd;
@ -189,12 +198,15 @@ struct tmio_mmc_host {
/* Tuning values: 1 for success, 0 for failure */
DECLARE_BITMAP(taps, BITS_PER_BYTE * sizeof(long));
unsigned int tap_num;
const struct tmio_mmc_dma_ops *dma_ops;
};
struct tmio_mmc_host *tmio_mmc_host_alloc(struct platform_device *pdev);
void tmio_mmc_host_free(struct tmio_mmc_host *host);
int tmio_mmc_host_probe(struct tmio_mmc_host *host,
struct tmio_mmc_data *pdata);
struct tmio_mmc_data *pdata,
const struct tmio_mmc_dma_ops *dma_ops);
void tmio_mmc_host_remove(struct tmio_mmc_host *host);
void tmio_mmc_do_data_irq(struct tmio_mmc_host *host);
@ -216,38 +228,6 @@ static inline void tmio_mmc_kunmap_atomic(struct scatterlist *sg,
local_irq_restore(*flags);
}
#if defined(CONFIG_MMC_SDHI) || defined(CONFIG_MMC_SDHI_MODULE)
void tmio_mmc_start_dma(struct tmio_mmc_host *host, struct mmc_data *data);
void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable);
void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdata);
void tmio_mmc_release_dma(struct tmio_mmc_host *host);
void tmio_mmc_abort_dma(struct tmio_mmc_host *host);
#else
static inline void tmio_mmc_start_dma(struct tmio_mmc_host *host,
struct mmc_data *data)
{
}
static inline void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
{
}
static inline void tmio_mmc_request_dma(struct tmio_mmc_host *host,
struct tmio_mmc_data *pdata)
{
host->chan_tx = NULL;
host->chan_rx = NULL;
}
static inline void tmio_mmc_release_dma(struct tmio_mmc_host *host)
{
}
static inline void tmio_mmc_abort_dma(struct tmio_mmc_host *host)
{
}
#endif
#ifdef CONFIG_PM
int tmio_mmc_host_runtime_suspend(struct device *dev);
int tmio_mmc_host_runtime_resume(struct device *dev);
@ -259,24 +239,26 @@ static inline u16 sd_ctrl_read16(struct tmio_mmc_host *host, int addr)
}
static inline void sd_ctrl_read16_rep(struct tmio_mmc_host *host, int addr,
u16 *buf, int count)
u16 *buf, int count)
{
readsw(host->ctl + (addr << host->bus_shift), buf, count);
}
static inline u32 sd_ctrl_read16_and_16_as_32(struct tmio_mmc_host *host, int addr)
static inline u32 sd_ctrl_read16_and_16_as_32(struct tmio_mmc_host *host,
int addr)
{
return readw(host->ctl + (addr << host->bus_shift)) |
readw(host->ctl + ((addr + 2) << host->bus_shift)) << 16;
}
static inline void sd_ctrl_read32_rep(struct tmio_mmc_host *host, int addr,
u32 *buf, int count)
u32 *buf, int count)
{
readsl(host->ctl + (addr << host->bus_shift), buf, count);
}
static inline void sd_ctrl_write16(struct tmio_mmc_host *host, int addr, u16 val)
static inline void sd_ctrl_write16(struct tmio_mmc_host *host, int addr,
u16 val)
{
/* If there is a hook and it returns non-zero then there
* is an error and the write should be skipped
@ -287,19 +269,20 @@ static inline void sd_ctrl_write16(struct tmio_mmc_host *host, int addr, u16 val
}
static inline void sd_ctrl_write16_rep(struct tmio_mmc_host *host, int addr,
u16 *buf, int count)
u16 *buf, int count)
{
writesw(host->ctl + (addr << host->bus_shift), buf, count);
}
static inline void sd_ctrl_write32_as_16_and_16(struct tmio_mmc_host *host, int addr, u32 val)
static inline void sd_ctrl_write32_as_16_and_16(struct tmio_mmc_host *host,
int addr, u32 val)
{
writew(val & 0xffff, host->ctl + (addr << host->bus_shift));
writew(val >> 16, host->ctl + ((addr + 2) << host->bus_shift));
}
static inline void sd_ctrl_write32_rep(struct tmio_mmc_host *host, int addr,
const u32 *buf, int count)
const u32 *buf, int count)
{
writesl(host->ctl + (addr << host->bus_shift), buf, count);
}

284
drivers/mmc/host/tmio_mmc_pio.c → drivers/mmc/host/tmio_mmc_core.c
View File

@ -1,8 +1,11 @@
/*
* linux/drivers/mmc/host/tmio_mmc_pio.c
* Driver for the MMC / SD / SDIO IP found in:
*
* Copyright (C) 2016 Sang Engineering, Wolfram Sang
* Copyright (C) 2015-16 Renesas Electronics Corporation
* TC6393XB, TC6391XB, TC6387XB, T7L66XB, ASIC3, SH-Mobile SoCs
*
* Copyright (C) 2015-17 Renesas Electronics Corporation
* Copyright (C) 2016-17 Sang Engineering, Wolfram Sang
* Copyright (C) 2017 Horms Solutions, Simon Horman
* Copyright (C) 2011 Guennadi Liakhovetski
* Copyright (C) 2007 Ian Molton
* Copyright (C) 2004 Ian Molton
@ -11,10 +14,6 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Driver for the MMC / SD / SDIO IP found in:
*
* TC6393XB, TC6391XB, TC6387XB, T7L66XB, ASIC3, SH-Mobile SoCs
*
* This driver draws mainly on scattered spec sheets, Reverse engineering
* of the toshiba e800 SD driver and some parts of the 2.4 ASIC3 driver (4 bit
* support). (Further 4 bit support from a later datasheet).
@ -52,17 +51,55 @@
#include "tmio_mmc.h"
static inline void tmio_mmc_start_dma(struct tmio_mmc_host *host,
struct mmc_data *data)
{
if (host->dma_ops)
host->dma_ops->start(host, data);
}
static inline void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
{
if (host->dma_ops)
host->dma_ops->enable(host, enable);
}
static inline void tmio_mmc_request_dma(struct tmio_mmc_host *host,
struct tmio_mmc_data *pdata)
{
if (host->dma_ops) {
host->dma_ops->request(host, pdata);
} else {
host->chan_tx = NULL;
host->chan_rx = NULL;
}
}
static inline void tmio_mmc_release_dma(struct tmio_mmc_host *host)
{
if (host->dma_ops)
host->dma_ops->release(host);
}
static inline void tmio_mmc_abort_dma(struct tmio_mmc_host *host)
{
if (host->dma_ops)
host->dma_ops->abort(host);
}
void tmio_mmc_enable_mmc_irqs(struct tmio_mmc_host *host, u32 i)
{
host->sdcard_irq_mask &= ~(i & TMIO_MASK_IRQ);
sd_ctrl_write32_as_16_and_16(host, CTL_IRQ_MASK, host->sdcard_irq_mask);
}
EXPORT_SYMBOL_GPL(tmio_mmc_enable_mmc_irqs);
void tmio_mmc_disable_mmc_irqs(struct tmio_mmc_host *host, u32 i)
{
host->sdcard_irq_mask |= (i & TMIO_MASK_IRQ);
sd_ctrl_write32_as_16_and_16(host, CTL_IRQ_MASK, host->sdcard_irq_mask);
}
EXPORT_SYMBOL_GPL(tmio_mmc_disable_mmc_irqs);
static void tmio_mmc_ack_mmc_irqs(struct tmio_mmc_host *host, u32 i)
{
@ -90,16 +127,17 @@ static int tmio_mmc_next_sg(struct tmio_mmc_host *host)
#define STATUS_TO_TEXT(a, status, i) \
do { \
if (status & TMIO_STAT_##a) { \
if (i++) \
printk(" | "); \
printk(#a); \
if ((status) & TMIO_STAT_##a) { \
if ((i)++) \
printk(KERN_DEBUG " | "); \
printk(KERN_DEBUG #a); \
} \
} while (0)
static void pr_debug_status(u32 status)
{
int i = 0;
pr_debug("status: %08x = ", status);
STATUS_TO_TEXT(CARD_REMOVE, status, i);
STATUS_TO_TEXT(CARD_INSERT, status, i);
@ -140,8 +178,7 @@ static void tmio_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
pm_runtime_get_sync(mmc_dev(mmc));
host->sdio_irq_enabled = true;
host->sdio_irq_mask = TMIO_SDIO_MASK_ALL &
~TMIO_SDIO_STAT_IOIRQ;
host->sdio_irq_mask = TMIO_SDIO_MASK_ALL & ~TMIO_SDIO_STAT_IOIRQ;
/* Clear obsolete interrupts before enabling */
sdio_status = sd_ctrl_read16(host, CTL_SDIO_STATUS) & ~TMIO_SDIO_MASK_ALL;
@ -185,7 +222,7 @@ static void tmio_mmc_clk_stop(struct tmio_mmc_host *host)
}
static void tmio_mmc_set_clock(struct tmio_mmc_host *host,
unsigned int new_clock)
unsigned int new_clock)
{
u32 clk = 0, clock;
@ -229,6 +266,12 @@ static void tmio_mmc_reset(struct tmio_mmc_host *host)
if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG)
sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0001);
msleep(10);
if (host->pdata->flags & TMIO_MMC_SDIO_IRQ) {
sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, host->sdio_irq_mask);
sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0001);
}
}
static void tmio_mmc_reset_work(struct work_struct *work)
@ -246,16 +289,16 @@ static void tmio_mmc_reset_work(struct work_struct *work)
* cancel_delayed_work(), it can happen, that a .set_ios() call preempts
* us, so, have to check for IS_ERR(host->mrq)
*/
if (IS_ERR_OR_NULL(mrq)
|| time_is_after_jiffies(host->last_req_ts +
msecs_to_jiffies(CMDREQ_TIMEOUT))) {
if (IS_ERR_OR_NULL(mrq) ||
time_is_after_jiffies(host->last_req_ts +
msecs_to_jiffies(CMDREQ_TIMEOUT))) {
spin_unlock_irqrestore(&host->lock, flags);
return;
}
dev_warn(&host->pdev->dev,
"timeout waiting for hardware interrupt (CMD%u)\n",
mrq->cmd->opcode);
"timeout waiting for hardware interrupt (CMD%u)\n",
mrq->cmd->opcode);
if (host->data)
host->data->error = -ETIMEDOUT;
@ -279,45 +322,6 @@ static void tmio_mmc_reset_work(struct work_struct *work)
mmc_request_done(host->mmc, mrq);
}
/* called with host->lock held, interrupts disabled */
static void tmio_mmc_finish_request(struct tmio_mmc_host *host)
{
struct mmc_request *mrq;
unsigned long flags;
spin_lock_irqsave(&host->lock, flags);
mrq = host->mrq;
if (IS_ERR_OR_NULL(mrq)) {
spin_unlock_irqrestore(&host->lock, flags);
return;
}
host->cmd = NULL;
host->data = NULL;
host->force_pio = false;
cancel_delayed_work(&host->delayed_reset_work);
host->mrq = NULL;
spin_unlock_irqrestore(&host->lock, flags);
if (mrq->cmd->error || (mrq->data && mrq->data->error))
tmio_mmc_abort_dma(host);
if (host->check_scc_error)
host->check_scc_error(host);
mmc_request_done(host->mmc, mrq);
}
static void tmio_mmc_done_work(struct work_struct *work)
{
struct tmio_mmc_host *host = container_of(work, struct tmio_mmc_host,
done);
tmio_mmc_finish_request(host);
}
/* These are the bitmasks the tmio chip requires to implement the MMC response
* types. Note that R1 and R6 are the same in this scheme. */
#define APP_CMD 0x0040
@ -332,7 +336,8 @@ static void tmio_mmc_done_work(struct work_struct *work)
#define SECURITY_CMD 0x4000
#define NO_CMD12_ISSUE 0x4000 /* TMIO_MMC_HAVE_CMD12_CTRL */
static int tmio_mmc_start_command(struct tmio_mmc_host *host, struct mmc_command *cmd)
static int tmio_mmc_start_command(struct tmio_mmc_host *host,
struct mmc_command *cmd)
{
struct mmc_data *data = host->data;
int c = cmd->opcode;
@ -371,11 +376,11 @@ static int tmio_mmc_start_command(struct tmio_mmc_host *host, struct mmc_command
c |= TRANSFER_MULTI;
/*
* Disable auto CMD12 at IO_RW_EXTENDED when
* multiple block transfer
* Disable auto CMD12 at IO_RW_EXTENDED and
* SET_BLOCK_COUNT when doing multiple block transfer
*/
if ((host->pdata->flags & TMIO_MMC_HAVE_CMD12_CTRL) &&
(cmd->opcode == SD_IO_RW_EXTENDED))
(cmd->opcode == SD_IO_RW_EXTENDED || host->mrq->sbc))
c |= NO_CMD12_ISSUE;
}
if (data->flags & MMC_DATA_READ)
@ -497,8 +502,6 @@ static void tmio_mmc_pio_irq(struct tmio_mmc_host *host)
if (host->sg_off == host->sg_ptr->length)
tmio_mmc_next_sg(host);
return;
}
static void tmio_mmc_check_bounce_buffer(struct tmio_mmc_host *host)
@ -506,6 +509,7 @@ static void tmio_mmc_check_bounce_buffer(struct tmio_mmc_host *host)
if (host->sg_ptr == &host->bounce_sg) {
unsigned long flags;
void *sg_vaddr = tmio_mmc_kmap_atomic(host->sg_orig, &flags);
memcpy(sg_vaddr, host->bounce_buf, host->bounce_sg.length);
tmio_mmc_kunmap_atomic(host->sg_orig, &flags, sg_vaddr);
}
@ -552,7 +556,7 @@ void tmio_mmc_do_data_irq(struct tmio_mmc_host *host)
host->mrq);
}
if (stop) {
if (stop && !host->mrq->sbc) {
if (stop->opcode != MMC_STOP_TRANSMISSION || stop->arg)
dev_err(&host->pdev->dev, "unsupported stop: CMD%u,0x%x. We did CMD12,0\n",
stop->opcode, stop->arg);
@ -565,10 +569,12 @@ void tmio_mmc_do_data_irq(struct tmio_mmc_host *host)
schedule_work(&host->done);
}
EXPORT_SYMBOL_GPL(tmio_mmc_do_data_irq);
static void tmio_mmc_data_irq(struct tmio_mmc_host *host, unsigned int stat)
{
struct mmc_data *data;
spin_lock(&host->lock);
data = host->data;
@ -613,8 +619,7 @@ out:
spin_unlock(&host->lock);
}
static void tmio_mmc_cmd_irq(struct tmio_mmc_host *host,
unsigned int stat)
static void tmio_mmc_cmd_irq(struct tmio_mmc_host *host, unsigned int stat)
{
struct mmc_command *cmd = host->cmd;
int i, addr;
@ -675,7 +680,7 @@ out:
}
static bool __tmio_mmc_card_detect_irq(struct tmio_mmc_host *host,
int ireg, int status)
int ireg, int status)
{
struct mmc_host *mmc = host->mmc;
@ -693,14 +698,13 @@ static bool __tmio_mmc_card_detect_irq(struct tmio_mmc_host *host,
return false;
}
static bool __tmio_mmc_sdcard_irq(struct tmio_mmc_host *host,
int ireg, int status)
static bool __tmio_mmc_sdcard_irq(struct tmio_mmc_host *host, int ireg,
int status)
{
/* Command completion */
if (ireg & (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT)) {
tmio_mmc_ack_mmc_irqs(host,
TMIO_STAT_CMDRESPEND |
TMIO_STAT_CMDTIMEOUT);
tmio_mmc_ack_mmc_irqs(host, TMIO_STAT_CMDRESPEND |
TMIO_STAT_CMDTIMEOUT);
tmio_mmc_cmd_irq(host, status);
return true;
}
@ -768,10 +772,10 @@ irqreturn_t tmio_mmc_irq(int irq, void *devid)
return IRQ_HANDLED;
}
EXPORT_SYMBOL(tmio_mmc_irq);
EXPORT_SYMBOL_GPL(tmio_mmc_irq);
static int tmio_mmc_start_data(struct tmio_mmc_host *host,
struct mmc_data *data)
struct mmc_data *data)
{
struct tmio_mmc_data *pdata = host->pdata;
@ -826,7 +830,7 @@ static int tmio_mmc_execute_tuning(struct mmc_host *mmc, u32 opcode)
if (host->tap_num * 2 >= sizeof(host->taps) * BITS_PER_BYTE) {
dev_warn_once(&host->pdev->dev,
"Too many taps, skipping tuning. Please consider updating size of taps field of tmio_mmc_host\n");
"Too many taps, skipping tuning. Please consider updating size of taps field of tmio_mmc_host\n");
goto out;
}
@ -857,12 +861,43 @@ out:
return ret;
}
static void tmio_process_mrq(struct tmio_mmc_host *host,
struct mmc_request *mrq)
{
struct mmc_command *cmd;
int ret;
if (mrq->sbc && host->cmd != mrq->sbc) {
cmd = mrq->sbc;
} else {
cmd = mrq->cmd;
if (mrq->data) {
ret = tmio_mmc_start_data(host, mrq->data);
if (ret)
goto fail;
}
}
ret = tmio_mmc_start_command(host, cmd);
if (ret)
goto fail;
schedule_delayed_work(&host->delayed_reset_work,
msecs_to_jiffies(CMDREQ_TIMEOUT));
return;
fail:
host->force_pio = false;
host->mrq = NULL;
mrq->cmd->error = ret;
mmc_request_done(host->mmc, mrq);
}
/* Process requests from the MMC layer */
static void tmio_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
{
struct tmio_mmc_host *host = mmc_priv(mmc);
unsigned long flags;
int ret;
spin_lock_irqsave(&host->lock, flags);
@ -882,24 +917,54 @@ static void tmio_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
spin_unlock_irqrestore(&host->lock, flags);
if (mrq->data) {
ret = tmio_mmc_start_data(host, mrq->data);
if (ret)
goto fail;
}
tmio_process_mrq(host, mrq);
}
ret = tmio_mmc_start_command(host, mrq->cmd);
if (!ret) {
schedule_delayed_work(&host->delayed_reset_work,
msecs_to_jiffies(CMDREQ_TIMEOUT));
static void tmio_mmc_finish_request(struct tmio_mmc_host *host)
{
struct mmc_request *mrq;
unsigned long flags;
spin_lock_irqsave(&host->lock, flags);
mrq = host->mrq;
if (IS_ERR_OR_NULL(mrq)) {
spin_unlock_irqrestore(&host->lock, flags);
return;
}
fail:
host->force_pio = false;
host->mrq = NULL;
mrq->cmd->error = ret;
mmc_request_done(mmc, mrq);
/* If not SET_BLOCK_COUNT, clear old data */
if (host->cmd != mrq->sbc) {
host->cmd = NULL;
host->data = NULL;
host->force_pio = false;
host->mrq = NULL;
}
cancel_delayed_work(&host->delayed_reset_work);
spin_unlock_irqrestore(&host->lock, flags);
if (mrq->cmd->error || (mrq->data && mrq->data->error))
tmio_mmc_abort_dma(host);
if (host->check_scc_error)
host->check_scc_error(host);
/* If SET_BLOCK_COUNT, continue with main command */
if (host->mrq) {
tmio_process_mrq(host, mrq);
return;
}
mmc_request_done(host->mmc, mrq);
}
static void tmio_mmc_done_work(struct work_struct *work)
{
struct tmio_mmc_host *host = container_of(work, struct tmio_mmc_host,
done);
tmio_mmc_finish_request(host);
}
static int tmio_mmc_clk_enable(struct tmio_mmc_host *host)
@ -965,7 +1030,7 @@ static void tmio_mmc_power_off(struct tmio_mmc_host *host)
}
static void tmio_mmc_set_bus_width(struct tmio_mmc_host *host,
unsigned char bus_width)
unsigned char bus_width)
{
u16 reg = sd_ctrl_read16(host, CTL_SD_MEM_CARD_OPT)
& ~(CARD_OPT_WIDTH | CARD_OPT_WIDTH8);
@ -1005,7 +1070,8 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
dev_dbg(dev,
"%s.%d: CMD%u active since %lu, now %lu!\n",
current->comm, task_pid_nr(current),
host->mrq->cmd->opcode, host->last_req_ts, jiffies);
host->mrq->cmd->opcode, host->last_req_ts,
jiffies);
}
spin_unlock_irqrestore(&host->lock, flags);
@ -1052,6 +1118,7 @@ static int tmio_mmc_get_ro(struct mmc_host *mmc)
struct tmio_mmc_host *host = mmc_priv(mmc);
struct tmio_mmc_data *pdata = host->pdata;
int ret = mmc_gpio_get_ro(mmc);
if (ret >= 0)
return ret;
@ -1108,6 +1175,7 @@ static void tmio_mmc_of_parse(struct platform_device *pdev,
struct tmio_mmc_data *pdata)
{
const struct device_node *np = pdev->dev.of_node;
if (!np)
return;
@ -1131,16 +1199,17 @@ tmio_mmc_host_alloc(struct platform_device *pdev)
return host;
}
EXPORT_SYMBOL(tmio_mmc_host_alloc);
EXPORT_SYMBOL_GPL(tmio_mmc_host_alloc);
void tmio_mmc_host_free(struct tmio_mmc_host *host)
{
mmc_free_host(host->mmc);
}
EXPORT_SYMBOL(tmio_mmc_host_free);
EXPORT_SYMBOL_GPL(tmio_mmc_host_free);
int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
struct tmio_mmc_data *pdata)
struct tmio_mmc_data *pdata,
const struct tmio_mmc_dma_ops *dma_ops)
{
struct platform_device *pdev = _host->pdev;
struct mmc_host *mmc = _host->mmc;
@ -1177,7 +1246,8 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
return -ENOMEM;
tmio_mmc_ops.card_busy = _host->card_busy;
tmio_mmc_ops.start_signal_voltage_switch = _host->start_signal_voltage_switch;
tmio_mmc_ops.start_signal_voltage_switch =
_host->start_signal_voltage_switch;
mmc->ops = &tmio_mmc_ops;
mmc->caps |= MMC_CAP_4_BIT_DATA | pdata->capabilities;
@ -1221,6 +1291,10 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
if (_host->native_hotplug)
pm_runtime_get_noresume(&pdev->dev);
_host->sdio_irq_enabled = false;
if (pdata->flags & TMIO_MMC_SDIO_IRQ)
_host->sdio_irq_mask = TMIO_SDIO_MASK_ALL;
tmio_mmc_clk_stop(_host);
tmio_mmc_reset(_host);
@ -1237,13 +1311,6 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
_host->sdcard_irq_mask &= ~irq_mask;
_host->sdio_irq_enabled = false;
if (pdata->flags & TMIO_MMC_SDIO_IRQ) {
_host->sdio_irq_mask = TMIO_SDIO_MASK_ALL;
sd_ctrl_write16(_host, CTL_SDIO_IRQ_MASK, _host->sdio_irq_mask);
sd_ctrl_write16(_host, CTL_TRANSACTION_CTL, 0x0001);
}
spin_lock_init(&_host->lock);
mutex_init(&_host->ios_lock);
@ -1252,6 +1319,7 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
INIT_WORK(&_host->done, tmio_mmc_done_work);
/* See if we also get DMA */
_host->dma_ops = dma_ops;
tmio_mmc_request_dma(_host, pdata);
pm_runtime_set_active(&pdev->dev);
@ -1278,7 +1346,7 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
return 0;
}
EXPORT_SYMBOL(tmio_mmc_host_probe);
EXPORT_SYMBOL_GPL(tmio_mmc_host_probe);
void tmio_mmc_host_remove(struct tmio_mmc_host *host)
{
@ -1303,7 +1371,7 @@ void tmio_mmc_host_remove(struct tmio_mmc_host *host)
tmio_mmc_clk_disable(host);
}
EXPORT_SYMBOL(tmio_mmc_host_remove);
EXPORT_SYMBOL_GPL(tmio_mmc_host_remove);
#ifdef CONFIG_PM
int tmio_mmc_host_runtime_suspend(struct device *dev)
@ -1320,7 +1388,7 @@ int tmio_mmc_host_runtime_suspend(struct device *dev)
return 0;
}
EXPORT_SYMBOL(tmio_mmc_host_runtime_suspend);
EXPORT_SYMBOL_GPL(tmio_mmc_host_runtime_suspend);
static bool tmio_mmc_can_retune(struct tmio_mmc_host *host)
{
@ -1345,7 +1413,7 @@ int tmio_mmc_host_runtime_resume(struct device *dev)
return 0;
}
EXPORT_SYMBOL(tmio_mmc_host_runtime_resume);
EXPORT_SYMBOL_GPL(tmio_mmc_host_runtime_resume);
#endif
MODULE_LICENSE("GPL v2");

3
drivers/mmc/host/vub300.c
View File

@ -2107,7 +2107,8 @@ static int vub300_probe(struct usb_interface *interface,
usb_string(udev, udev->descriptor.iSerialNumber, serial_number,
sizeof(serial_number));
dev_info(&udev->dev, "probing VID:PID(%04X:%04X) %s %s %s\n",
udev->descriptor.idVendor, udev->descriptor.idProduct,
le16_to_cpu(udev->descriptor.idVendor),
le16_to_cpu(udev->descriptor.idProduct),
manufacturer, product, serial_number);
command_out_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!command_out_urb) {

35
include/linux/mfd/tmio.h
View File

@ -13,15 +13,15 @@
#define tmio_ioread16(addr) readw(addr)
#define tmio_ioread16_rep(r, b, l) readsw(r, b, l)
#define tmio_ioread32(addr) \
(((u32) readw((addr))) | (((u32) readw((addr) + 2)) << 16))
(((u32)readw((addr))) | (((u32)readw((addr) + 2)) << 16))
#define tmio_iowrite8(val, addr) writeb((val), (addr))
#define tmio_iowrite16(val, addr) writew((val), (addr))
#define tmio_iowrite16_rep(r, b, l) writesw(r, b, l)
#define tmio_iowrite32(val, addr) \
do { \
writew((val), (addr)); \
writew((val) >> 16, (addr) + 2); \
writew((val), (addr)); \
writew((val) >> 16, (addr) + 2); \
} while (0)
#define CNF_CMD 0x04
@ -55,57 +55,57 @@
} while (0)
/* tmio MMC platform flags */
#define TMIO_MMC_WRPROTECT_DISABLE (1 << 0)
#define TMIO_MMC_WRPROTECT_DISABLE BIT(0)
/*
* Some controllers can support a 2-byte block size when the bus width
* is configured in 4-bit mode.
*/
#define TMIO_MMC_BLKSZ_2BYTES (1 << 1)
#define TMIO_MMC_BLKSZ_2BYTES BIT(1)
/*
* Some controllers can support SDIO IRQ signalling.
*/
#define TMIO_MMC_SDIO_IRQ (1 << 2)
#define TMIO_MMC_SDIO_IRQ BIT(2)
/* Some features are only available or tested on RCar Gen2 or later */
#define TMIO_MMC_MIN_RCAR2 (1 << 3)
/* Some features are only available or tested on R-Car Gen2 or later */
#define TMIO_MMC_MIN_RCAR2 BIT(3)
/*
* Some controllers require waiting for the SD bus to become
* idle before writing to some registers.
*/
#define TMIO_MMC_HAS_IDLE_WAIT (1 << 4)
#define TMIO_MMC_HAS_IDLE_WAIT BIT(4)
/*
* A GPIO is used for card hotplug detection. We need an extra flag for this,
* because 0 is a valid GPIO number too, and requiring users to specify
* cd_gpio < 0 to disable GPIO hotplug would break backwards compatibility.
*/
#define TMIO_MMC_USE_GPIO_CD (1 << 5)
#define TMIO_MMC_USE_GPIO_CD BIT(5)
/*
* Some controllers doesn't have over 0x100 register.
* it is used to checking accessibility of
* CTL_SD_CARD_CLK_CTL / CTL_CLK_AND_WAIT_CTL
*/
#define TMIO_MMC_HAVE_HIGH_REG (1 << 6)
#define TMIO_MMC_HAVE_HIGH_REG BIT(6)
/*
* Some controllers have CMD12 automatically
* issue/non-issue register
*/
#define TMIO_MMC_HAVE_CMD12_CTRL (1 << 7)
#define TMIO_MMC_HAVE_CMD12_CTRL BIT(7)
/* Controller has some SDIO status bits which must be 1 */
#define TMIO_MMC_SDIO_STATUS_SETBITS (1 << 8)
#define TMIO_MMC_SDIO_STATUS_SETBITS BIT(8)
/*
* Some controllers have a 32-bit wide data port register
*/
#define TMIO_MMC_32BIT_DATA_PORT (1 << 9)
#define TMIO_MMC_32BIT_DATA_PORT BIT(9)
/*
* Some controllers allows to set SDx actual clock
*/
#define TMIO_MMC_CLK_ACTUAL (1 << 10)
#define TMIO_MMC_CLK_ACTUAL BIT(10)
int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base);
int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base);
@ -146,9 +146,9 @@ struct tmio_nand_data {
struct tmio_fb_data {
int (*lcd_set_power)(struct platform_device *fb_dev,
bool on);
bool on);
int (*lcd_mode)(struct platform_device *fb_dev,
const struct fb_videomode *mode);
const struct fb_videomode *mode);
int num_modes;
struct fb_videomode *modes;
@ -157,5 +157,4 @@ struct tmio_fb_data {
int width;
};
#endif

2
include/linux/mmc/card.h
View File

@ -305,9 +305,7 @@ struct mmc_card {
struct mmc_part part[MMC_NUM_PHY_PARTITION]; /* physical partitions */
unsigned int nr_parts;
struct mmc_queue_req *mqrq; /* Shared queue structure */
unsigned int bouncesz; /* Bounce buffer size */
int qdepth; /* Shared queue depth */
};
static inline bool mmc_large_sector(struct mmc_card *card)

7
include/linux/mmc/host.h
View File

@ -130,6 +130,7 @@ struct mmc_host_ops {
int (*get_cd)(struct mmc_host *host);
void (*enable_sdio_irq)(struct mmc_host *host, int enable);
void (*ack_sdio_irq)(struct mmc_host *host);
/* optional callback for HC quirks */
void (*init_card)(struct mmc_host *host, struct mmc_card *card);
@ -184,6 +185,7 @@ struct mmc_async_req {
*/
struct mmc_slot {
int cd_irq;
bool cd_wake_enabled;
void *handler_priv;
};
@ -270,9 +272,11 @@ struct mmc_host {
#define MMC_CAP_UHS_SDR50 (1 << 18) /* Host supports UHS SDR50 mode */
#define MMC_CAP_UHS_SDR104 (1 << 19) /* Host supports UHS SDR104 mode */
#define MMC_CAP_UHS_DDR50 (1 << 20) /* Host supports UHS DDR50 mode */
#define MMC_CAP_NO_BOUNCE_BUFF (1 << 21) /* Disable bounce buffers on host */
#define MMC_CAP_DRIVER_TYPE_A (1 << 23) /* Host supports Driver Type A */
#define MMC_CAP_DRIVER_TYPE_C (1 << 24) /* Host supports Driver Type C */
#define MMC_CAP_DRIVER_TYPE_D (1 << 25) /* Host supports Driver Type D */
#define MMC_CAP_CD_WAKE (1 << 28) /* Enable card detect wake */
#define MMC_CAP_CMD_DURING_TFR (1 << 29) /* Commands during data transfer */
#define MMC_CAP_CMD23 (1 << 30) /* CMD23 supported. */
#define MMC_CAP_HW_RESET (1 << 31) /* Hardware reset */
@ -285,7 +289,6 @@ struct mmc_host {
#define MMC_CAP2_HS200_1_2V_SDR (1 << 6) /* can support */
#define MMC_CAP2_HS200 (MMC_CAP2_HS200_1_8V_SDR | \
MMC_CAP2_HS200_1_2V_SDR)
#define MMC_CAP2_HC_ERASE_SZ (1 << 9) /* High-capacity erase size */
#define MMC_CAP2_CD_ACTIVE_HIGH (1 << 10) /* Card-detect signal active high */
#define MMC_CAP2_RO_ACTIVE_HIGH (1 << 11) /* Write-protect signal active high */
#define MMC_CAP2_PACKED_RD (1 << 12) /* Allow packed read */
@ -358,6 +361,7 @@ struct mmc_host {
unsigned int sdio_irqs;
struct task_struct *sdio_irq_thread;
struct delayed_work sdio_irq_work;
bool sdio_irq_pending;
atomic_t sdio_irq_thread_abort;
@ -428,6 +432,7 @@ static inline void mmc_signal_sdio_irq(struct mmc_host *host)
}
void sdio_run_irqs(struct mmc_host *host);
void sdio_signal_irq(struct mmc_host *host);
#ifdef CONFIG_REGULATOR
int mmc_regulator_get_ocrmask(struct regulator *supply);