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Merge branch 'hsmmc' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into omap/hsmmc

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This commit is contained in:
Olof Johansson 2011-12-13 12:09:28 -08:00
commit 28e20403a9
6 changed files with 86 additions and 24 deletions
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1
arch/arm/mach-omap2/board-4430sdp.c
View File

@ -404,6 +404,7 @@ static struct omap2_hsmmc_info mmc[] = {
{
.mmc = 5,
.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
.pm_caps = MMC_PM_KEEP_POWER,
.gpio_cd = -EINVAL,
.gpio_wp = -EINVAL,
.ocr_mask = MMC_VDD_165_195,

22
arch/arm/mach-omap2/board-am3517evm.c
View File

@ -24,6 +24,7 @@
#include <linux/i2c/pca953x.h>
#include <linux/can/platform/ti_hecc.h>
#include <linux/davinci_emac.h>
#include <linux/mmc/host.h>
#include <mach/hardware.h>
#include <mach/am35xx.h>
@ -40,6 +41,7 @@
#include "mux.h"
#include "control.h"
#include "hsmmc.h"
#define AM35XX_EVM_MDIO_FREQUENCY (1000000)
@ -455,6 +457,23 @@ static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
};
static struct omap2_hsmmc_info mmc[] = {
{
.mmc = 1,
.caps = MMC_CAP_4_BIT_DATA,
.gpio_cd = 127,
.gpio_wp = 126,
},
{
.mmc = 2,
.caps = MMC_CAP_4_BIT_DATA,
.gpio_cd = 128,
.gpio_wp = 129,
},
{} /* Terminator */
};
static void __init am3517_evm_init(void)
{
omap_board_config = am3517_evm_config;
@ -483,6 +502,9 @@ static void __init am3517_evm_init(void)
/* MUSB */
am3517_evm_musb_init();
/* MMC init function */
omap2_hsmmc_init(mmc);
}
MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")

59
arch/arm/mach-omap2/hsmmc.c
View File

@ -171,6 +171,17 @@ static void omap4_hsmmc1_after_set_reg(struct device *dev, int slot,
}
}
static void hsmmc2_select_input_clk_src(struct omap_mmc_platform_data *mmc)
{
u32 reg;
if (mmc->slots[0].internal_clock) {
reg = omap_ctrl_readl(control_devconf1_offset);
reg |= OMAP2_MMCSDIO2ADPCLKISEL;
omap_ctrl_writel(reg, control_devconf1_offset);
}
}
static void hsmmc23_before_set_reg(struct device *dev, int slot,
int power_on, int vdd)
{
@ -179,16 +190,19 @@ static void hsmmc23_before_set_reg(struct device *dev, int slot,
if (mmc->slots[0].remux)
mmc->slots[0].remux(dev, slot, power_on);
if (power_on) {
/* Only MMC2 supports a CLKIN */
if (mmc->slots[0].internal_clock) {
u32 reg;
if (power_on)
hsmmc2_select_input_clk_src(mmc);
}
reg = omap_ctrl_readl(control_devconf1_offset);
reg |= OMAP2_MMCSDIO2ADPCLKISEL;
omap_ctrl_writel(reg, control_devconf1_offset);
}
}
static int am35x_hsmmc2_set_power(struct device *dev, int slot,
int power_on, int vdd)
{
struct omap_mmc_platform_data *mmc = dev->platform_data;
if (power_on)
hsmmc2_select_input_clk_src(mmc);
return 0;
}
static int nop_mmc_set_power(struct device *dev, int slot, int power_on,
@ -200,10 +214,12 @@ static int nop_mmc_set_power(struct device *dev, int slot, int power_on,
static inline void omap_hsmmc_mux(struct omap_mmc_platform_data *mmc_controller,
int controller_nr)
{
if (gpio_is_valid(mmc_controller->slots[0].switch_pin))
if (gpio_is_valid(mmc_controller->slots[0].switch_pin) &&
(mmc_controller->slots[0].switch_pin < OMAP_MAX_GPIO_LINES))
omap_mux_init_gpio(mmc_controller->slots[0].switch_pin,
OMAP_PIN_INPUT_PULLUP);
if (gpio_is_valid(mmc_controller->slots[0].gpio_wp))
if (gpio_is_valid(mmc_controller->slots[0].gpio_wp) &&
(mmc_controller->slots[0].gpio_wp < OMAP_MAX_GPIO_LINES))
omap_mux_init_gpio(mmc_controller->slots[0].gpio_wp,
OMAP_PIN_INPUT_PULLUP);
if (cpu_is_omap34xx()) {
@ -296,6 +312,7 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
mmc->slots[0].name = hc_name;
mmc->nr_slots = 1;
mmc->slots[0].caps = c->caps;
mmc->slots[0].pm_caps = c->pm_caps;
mmc->slots[0].internal_clock = !c->ext_clock;
mmc->dma_mask = 0xffffffff;
if (cpu_is_omap44xx())
@ -336,11 +353,17 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
*
* temporary HACK: ocr_mask instead of fixed supply
*/
mmc->slots[0].ocr_mask = c->ocr_mask;
if (cpu_is_omap3517() || cpu_is_omap3505())
mmc->slots[0].set_power = nop_mmc_set_power;
if (cpu_is_omap3505() || cpu_is_omap3517())
mmc->slots[0].ocr_mask = MMC_VDD_165_195 |
MMC_VDD_26_27 |
MMC_VDD_27_28 |
MMC_VDD_29_30 |
MMC_VDD_30_31 |
MMC_VDD_31_32;
else
mmc->slots[0].ocr_mask = c->ocr_mask;
if (!cpu_is_omap3517() && !cpu_is_omap3505())
mmc->slots[0].features |= HSMMC_HAS_PBIAS;
if (cpu_is_omap44xx() && (omap_rev() > OMAP4430_REV_ES1_0))
@ -363,6 +386,9 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
}
}
if (cpu_is_omap3517() || cpu_is_omap3505())
mmc->slots[0].set_power = nop_mmc_set_power;
/* OMAP3630 HSMMC1 supports only 4-bit */
if (cpu_is_omap3630() &&
(c->caps & MMC_CAP_8_BIT_DATA)) {
@ -372,6 +398,9 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
}
break;
case 2:
if (cpu_is_omap3517() || cpu_is_omap3505())
mmc->slots[0].set_power = am35x_hsmmc2_set_power;
if (c->ext_clock)
c->transceiver = 1;
if (c->transceiver && (c->caps & MMC_CAP_8_BIT_DATA)) {

1
arch/arm/mach-omap2/hsmmc.h
View File

@ -12,6 +12,7 @@ struct omap2_hsmmc_info {
u8 mmc; /* controller 1/2/3 */
u32 caps; /* 4/8 wires and any additional host
* capabilities OR'd (ref. linux/mmc/host.h) */
u32 pm_caps; /* PM capabilities */
bool transceiver; /* MMC-2 option */
bool ext_clock; /* use external pin for input clock */
bool cover_only; /* No card detect - just cover switch */

1
arch/arm/plat-omap/include/plat/mmc.h
View File

@ -96,6 +96,7 @@ struct omap_mmc_platform_data {
*/
u8 wires; /* Used for the MMC driver on omap1 and 2420 */
u32 caps; /* Used for the MMC driver on 2430 and later */
u32 pm_caps; /* PM capabilities of the mmc */
/*
* nomux means "standard" muxing is wrong on this board, and

26
drivers/mmc/host/omap_hsmmc.c
View File

@ -1988,6 +1988,8 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
if (mmc_slot(host).nonremovable)
mmc->caps |= MMC_CAP_NONREMOVABLE;
mmc->pm_caps = mmc_slot(host).pm_caps;
omap_hsmmc_conf_bus_power(host);
/* Select DMA lines */
@ -2176,13 +2178,7 @@ static int omap_hsmmc_suspend(struct device *dev)
cancel_work_sync(&host->mmc_carddetect_work);
ret = mmc_suspend_host(host->mmc);
if (ret == 0) {
omap_hsmmc_disable_irq(host);
OMAP_HSMMC_WRITE(host->base, HCTL,
OMAP_HSMMC_READ(host->base, HCTL) & ~SDBP);
if (host->got_dbclk)
clk_disable(host->dbclk);
} else {
if (ret) {
host->suspended = 0;
if (host->pdata->resume) {
ret = host->pdata->resume(&pdev->dev,
@ -2191,9 +2187,20 @@ static int omap_hsmmc_suspend(struct device *dev)
dev_dbg(mmc_dev(host->mmc),
"Unmask interrupt failed\n");
}
goto err;
}
pm_runtime_put_sync(host->dev);
if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER)) {
omap_hsmmc_disable_irq(host);
OMAP_HSMMC_WRITE(host->base, HCTL,
OMAP_HSMMC_READ(host->base, HCTL) & ~SDBP);
}
if (host->got_dbclk)
clk_disable(host->dbclk);
}
err:
pm_runtime_put_sync(host->dev);
return ret;
}
@ -2213,7 +2220,8 @@ static int omap_hsmmc_resume(struct device *dev)
if (host->got_dbclk)
clk_enable(host->dbclk);
omap_hsmmc_conf_bus_power(host);
if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER))
omap_hsmmc_conf_bus_power(host);
if (host->pdata->resume) {
ret = host->pdata->resume(&pdev->dev, host->slot_id);