The module defines a duplicate uclass driver for UCLASS_SIMPLE_BUS, but
it is not allowed. This breaks of-platdata and makes the result
non-deterministic.
The driver does not need to be an uclass driver, so lets remove it. I
had turned it into an uclass driver because I thought wrongly it had to
call the dm_scan_fdt_dev routine to work properly, but some tests on the
board have shown otherwise.
Signed-off-by: Dario Binacchi <dariobin@libero.it>
Reviewed-by: Simon Glass <sjg@chromium.org>
building with MTK_AHCI enabled results in implicit declaration and
undefined reference of dev_err followed by a segfault of gcc
drivers/ata/mtk_ahci.c: In function 'mtk_ahci_parse_property':
drivers/ata/mtk_ahci.c:65:4: warning:
implicit declaration of function 'dev_err'
drivers/ata/mtk_ahci.c:65: undefined reference to `dev_err'
in function `mtk_ahci_probe':
drivers/ata/mtk_ahci.c:92: undefined reference to `dev_err'
Segmentation fault
fix this by adding the dm/device_compat.h to includes
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
commit e58e68d9 ("mmc: mtk-sd: assign plat->cfg.f_max with a correct value")
wrongly assumed that plat->cfg.f_max is always unset at the time
mscd_drv_probe() is run. This is not true in case max-frequency being
defined in device tree, as it is then already set by mmc_of_parse()
in msdc_of_to_plat().
Only set plat->cfg.f_max to the default maximum value in case it is
not already set to a sane value.
Fixes: e58e68d93e ("mmc: mtk-sd: assign plat->cfg.f_max with a correct value")
Cc: Stefan Roese <sr@denx.de>
Cc: Weijie Gao <weijie.gao@mediatek.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
- stm32mp1_trusted_defconfig rely on SCMI support
- Remove the nand MTD configuration for NOR boot in stm32mp1 board
- STM32programmer update
- Bsec: manage clock when present in device tree
- stm32mp15: move bootdelay configuration in defconfig
- Update for stm32 dsi and dw_mipi_dsi
- STM32 MCU's cleanup
- Fix compilation issue depending on SYS_DCACHE_OFF and SYS_ICACHE_OFF flags
- Update stm32mp1 doc
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Merge tag 'u-boot-stm32-20210312' of https://source.denx.de/u-boot/custodians/u-boot-stm
- Add WATCHDOG_RESET() in MTD framework and STM32 QSPI driver
- stm32mp1_trusted_defconfig rely on SCMI support
- Remove the nand MTD configuration for NOR boot in stm32mp1 board
- STM32programmer update
- Bsec: manage clock when present in device tree
- stm32mp15: move bootdelay configuration in defconfig
- Update for stm32 dsi and dw_mipi_dsi
- STM32 MCU's cleanup
- Fix compilation issue depending on SYS_DCACHE_OFF and SYS_ICACHE_OFF flags
- Update stm32mp1 doc
Config option ARMADA_39X is never set so remove all dead code hidden under
ifdef CONFIG_ARMADA_39X blocks.
Also remove useless checks for CONFIG_ARMADA_38X define as this macro is
always defined for a38x code path.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Marvell Armada 3720 Functional Errata, Guidelines, and Restrictions
document describes in erratum 4.1 PCIe value of vendor ID (Ref #: 243):
The readback value of VEND_ID (RD0070000h [15:0]) is 1B4Bh, while it
should read 11ABh.
The firmware can write the correct value, 11ABh, through VEND_ID
(RD0076044h [15:0]).
Implement this workaround in U-Boot PCIe controller driver aardvark for
both PCI vendor id and PCI subsystem vendor id.
This change affects PCI vendor id of PCIe root bridge emulated by Linux
kernel. With this change Linux kernel reports correct vendor id 11AB.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
The arrays `pbs_dq_mapping`, `div_ratio1to1` and `div_ratio2to1` have
different bounds declared in header files where these variables are also
defined from the ones declared in source files.
This causes the compiler to complain (when building with LTO):
ddr3_sdram.c:24:12: warning: type of ‘pbs_dq_mapping’ does not match
original declaration
[-Wlto-type-mismatch]
ddr3_patterns_64bit.h:911:5: note: array types have different bounds
ddr3_patterns_64bit.h:911:5: note: ‘pbs_dq_mapping’ was previously
declared here
ddr3_dfs.c:45:11: warning: type of ‘div_ratio1to1’ does not match
original declaration [-Wlto-type-mismatch]
ddr3_axp_vars.h:167:4: note: array types have different bounds
ddr3_axp_vars.h:167:4: note: ‘div_ratio1to1’ was previously declared
here
ddr3_dfs.c:46:11: warning: type of ‘div_ratio2to1’ does not match
original declaration [-Wlto-type-mismatch]
ddr3_axp_vars.h:196:4: note: array types have different bounds
ddr3_axp_vars.h:196:4: note: ‘div_ratio2to1’ was previously declared
here
CI managed to trigger this as an error when compiling with LTO for AXP.
Fix this by using values from the header files, which seem to be the
correct ones.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
In arch/arm/mach-mvebu/dram.c we always include axp's xor.h for common
XOR definitions, regardless whether we compile for axp or a38x.
But the declaration of this function has a different signature in axp's
xor.h from the one used in a38x' implementation - one parameter is u64
instead of u32. This can result in wrong argument's being passed to that
function on a38x with no one the wiser.
I discovered this when building U-Boot for Turris Omnia with LTO. The
compiler complains about the different signatures being thrown into the
same linking process:
axp/xor.h:67:5: warning: type of ‘mv_xor_mem_init’ does not match
original declaration [-Wlto-type-mismatch]
67 | int mv_xor_mem_init(u32 chan, u32 start_ptr, u32 block_size,
| ^
a38x/xor.c:165:5: note: type mismatch in parameter 3
165 | int mv_xor_mem_init(u32 chan, u32 start_ptr, unsigned long long
| ^
a38x/xor.c:165:5: note: type ‘long long unsigned int’ should match
type ‘u32’
Fix this by changing the type of the block_size argument in the axp's
implementation and header file to the one used in a38x (and upstream
mv-ddr-marvell).
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
This syncs drivers/ddr/marvell/a38x/ with the master branch of repository
https://github.com/MarvellEmbeddedProcessors/mv-ddr-marvell.git up to the
commit 7c351731d196 ("Merge pull request #29 from pali/sync-a38x-uboot").
This patch was created by following steps:
1. Replace all a38x files in U-Boot tree by files from upstream github
Marvell mv-ddr-marvell repository.
2. Run following command to omit portions not relevant for a38x and ddr3:
files=drivers/ddr/marvell/a38x/*
sed 's/#if defined(CONFIG_ARMADA_38X) || defined(CONFIG_ARMADA_39X)/#ifdef TRUE/' -i $files
unifdef -m -UMV_DDR -UMV_DDR_ATF -UCONFIG_DDR4 -UCONFIG_APN806 \
-UCONFIG_MC_STATIC -UCONFIG_MC_STATIC_PRINT -UCONFIG_PHY_STATIC \
-UCONFIG_PHY_STATIC_PRINT -UCONFIG_CUSTOMER_BOARD_SUPPORT \
-UCONFIG_A3700 -UA3900 -UA80X0 -UA70X0 -DTRUE $files
3. Manually omit SPDX-License-Identifier changes from this patch as
upstream license in upstream github repository contains long license
texts and U-Boot is using just SPDX-License-Identifier.
After applying this patch, a38x ddr3 code in upstream Marvell github
repository and in U-Boot would be fully identical. So in future applying
above steps could be used to sync code again.
The only change in this patch is removal of dead code and some fixes with
include files.
Signed-off-by: Pali Rohár <pali@kernel.org>
Tested-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
commit 258be123226f8f5cd516b7813fe201fb7d7416e9 upstream.
At this moment, only page 0 of SPD is being read but to support
smbios, we need to read page 1 also which has more info. In order
to do that, we need to allocate more space.
Signed-off-by: Sujeet Baranwal <sujeet.baranwal@cavium.com>
Tested-by: sa_ip-sw-jenkins <sa_ip-sw-jenkins@marvell.com>
Reviewed-by: Sujeet Kumar Baranwal <Sujeet.Baranwal@cavium.com>
Reviewed-by: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <judge.packham@gmail.com>
The DSI phy can be turned on from the DSI digital interface in
the dphy_enable() function or from a dedicated DSI phy "wrapper"
in phy_ops->init() function. If the STM32MP1 case, the wrapper
is used then the dphy_enable() "warning" traces are not relevant.
This patch moves these "warning" traces to "debug" traces so
they are still available for DSI phy based on the digital
interface in debug logging mode, but not there in normal mode
for both cases.
Note: The related Linux kernel driver uses a "debug"
message too.
Signed-off-by: Yannick Fertre <yannick.fertre@foss.st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Acked-by: Yannick Fertre <yannick.fertre@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Remove the child device of the STM32 DSI bridge when the driver probe
failed to stop futher probe request on panels used with STMicroelectronics
board (orisetech_otm8009a.c or raydium-rm68200.c driver).
This patch avoid the trace "cannot get reset GPIO" when
STM32MP157 device tree is used on stm32MP151 SOC without DSI support.
In this hw_version value is 0, as DSI bridge is absent and the panel
ofdata_to_platdata is called for each try of panel probe,
the gpio reset pin is requested but after dsi father probe failed).
For the next request, the PANEL ofdata_to_platdata failed as the gpio
is already used.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reorder include files in expected order.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Define LOG_CATEGORY to allow filtering with log command.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Include the file needed for log function prototype, this patch solves the
compilation issue for undefined reference to `dev_err'.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
This change makes stm32mp1 clock driver to get the root clocks
reference from the device node in the FDT rather than fetching
straight these clocks by their name. Driver now stores the
clock reference and use it to know if a root clock is present,
get its rate or gets its related udevice reference.
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
In case of big area read/write on spi nand, watchdog timeout may occurs.
To fix that, add WATCHDOG_RESET() in spinand_mtd_read() and
spinand_mtd_write() to ensure that watchdog is reset.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
In case of big area erased on nand, watchdog timeout may occurs.
To fix that, add WATCHDOG_RESET() in nanddev_mtd_erase() to ensure that
watchdog is reset.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
In case of reading large area and memory-map mode is misconfigured
(memory-map size declared lower than the real size of the memory chip)
watchdog can be triggered.
Add WATCHDOG_RESET() in _stm32_qspi_read_fifo to fix it.
Issue reproduced with stm32mp157c-ev1 board and memory map size set to
1, with following command:
sf read 0xC0000000 0 0x4000000
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
In case of big area write/erase on spi nor, watchdog timeout may occurs.
Issue reproduced on stm32mp157c-ev1 with following commands:
sf write 0xC0000000 0 0x3000000
or
sf erase 0 0x1000000
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
When flush cache of the current GPD and resume QMU, the controller
will try to access the next GPD after processing the current one,
if not flush the next GPD, the controller may get wrong GPD status.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
This option is better placed in the x86 code since it is not generic
enough to be in the core code. Move it.
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: fixed a typo in arch/x86/Kconfig]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Fix the treshold typo in code by threshold.
Fixes: c0165c85c3 ("button: add a simple Analog to Digital Converter device based button driver")
Suggested-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
sysreset uclass driver provides an implementation of 'reset'
command using the sysreset_ APIs unconditionally. It also
supports the 'poweroff' command using the sysreset_ APIs,
but under a Kconfig option CONFIG_SYSRESET_CMD_POWEROFF.
Let's do the same for the 'reset' command, by introducing a
new Kconfig option CONFIG_SYSRESET_CMD_RESET, and set it to
on by default, to allow a board that don't have a sysreset
reset driver yet, but have a sysreset poweroff driver to
compile without any issue.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
dev_read_addr_size_index() returns fdt_addr_t which might be a
64-bit physical address. This might be true for some 85xx SoCs
whose CCSBAR is mapped beyond 4 GiB.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
The VirtIO BLK driver depends on the blk uclass driver.
Add the dependency in the Kconfig.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
At present the driver only supports 32-bit bus and cpu address.
The controller's outbound registers/fields for extended address
are not programmed. Let's program them to support 64-bit bus and
cpu address.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
devfdt_get_addr_index() returns fdt_addr_t which might be a 64-bit
physical address. Use map_physmem() to return the virtual address
that can be used by a 32-bit machine.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
For the QEMU ppce500 machine, LAW registers are not implemented
hence CONFIG_FSL_LAW is not turned on and all LAW APIs are not
available. We should wrap all LAW registers programming in the
mpc85xx PCI driver with CONFIG_FSL_LAW.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Commit e002474158 ("pci: pci-uclass: Dynamically allocate the PCI regions")
changes 'struct pci_controller'.regions from pre-allocated array of
regions to dynamically allocated, which unfortunately broken lots of
boards that still use the non-DM PCI driver.
This patch changes the non-DM fsl_pci_init driver to dynamically
allocate the regions, just like what's done in the pci uclass driver.
Fixes: e002474158 ("pci: pci-uclass: Dynamically allocate the PCI regions")
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
A working device tree node of ns16550 should never be populated
with value zero for the <clock-frequency> property. Unfortunately
this is the case for the QEMU ppce500 target.
Let's try to assign plat->clock to CONFIG_SYS_NS16550_CLK as the
last resort to handle such case.
This commit should be reverted when:
- The following QEMU patch [1] is merged, and
- U-Boot CI has upgraded its QEMU version that contains the fix
[1] http://patchwork.ozlabs.org/project/qemu-devel/patch/1612362288-22216-2-git-send-email-bmeng.cn@gmail.com/
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Currently ns16550_serial_assign_base() treats the argument 'base'
with type `ulong`. This is incorrect because the base address was
obtained from device tree with type `fdt_addr_t` that can represent
a physical address larger than 32-bit in a 32-bit system.
Fixes: 9e6ce62190 ("serial: ns16550: Fix ordering of getting base address")
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Each invocation of the 'host bind' command with a file name argument opens
a file descriptor. The next invocation of the 'host bind' command destroys
the block device but the file descriptor remains open. The same holds true
for the 'unbind blk' command.
Close the file descriptor when unbinding the host block device.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
At present device_bind() does some unnecessary work if a device fails to
bind in SPL. Add the missing conditions.
Also fix a style nit in the same function while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
With of-platdata we always have a dtv struct that holds the platform data
provided by the driver_info record. However, this struct can be empty if
there are no actual devicetree properties provided.
The upshot of empty platform data is that it will end up as a zero-size
member in the BSS section, which is fine. But if the driver specifies
plat_auto then it expects the correct amount of space to be allocated.
At present this does not happen, since device_bind() assumes that the
platform-data size will always be >0. As a result we end up not
allocating the space and just use the BSS region, overwriting whatever
other contents are present.
Fix this by removing the condition that platform data be non-empty, always
allocating space if requested.
This fixes a strange bug that has been lurking since of-platdata was
implemented. It has likely never been noticed since devices normally have
at least some devicetree properties, BSS is seldom used on SPL, the dtv
structs are normally at the end of bss and the overwriting only happens
if a driver changes its platform data.
It was discovered using sandbox_spl, which exercises more features than
a normal board might, and the critical global_data variable 'gd' happened
to be at the end of BSS.
Fixes: 9fa2819009 ("dm: core: Expand platdata for of-platdata devices")
Signed-off-by: Simon Glass <sjg@chromium.org>
All debug messages from ep0.c except a few are printed by dbg_ep0() macro.
So for remaining few exceptions use also dbg_ep0() instead of serial_printf().
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
If we do not set FIFO buffer address and size for some endpoint which is in
use then default programmed address 0x0 would be used which is in conflict
with address of FIFO buffer for endpoint 0. Moreover address of FIFO buffer
for endpoint 0 cannot be programmed, it is fixed to 0x0. Sharing address
space between more endpoints cause data loss and unexpected errors.
This patch is fixing transmission of characters over usbtty serial console
and allows using of usbtty for debugging purposes on Nokia N900.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Interrupt for EP0 is indicated in intrtx register via first bit. This bit
is set for both RX and TX despite register has only TX in its name. First
bit in intrrx register is reserved, not used and never set.
So remove calling musb_peri_ep0() function at every iteration of udc_irq()
and musb_peri_rx() and call it only from musb_peri_tx() when correct
interrupt bit in initrtx it set.
Address from SET ADDRESS command must be set to faddr register only after
acknowledging SERV_RXPKTRDY followed by received EP0 interrupt. So prior
calling musb_peri_ep0_set_address() check for EP0 interrupt instead of
(incorrect) MUSB_INTR_SOF interrupt.
This patch fixes issue that host (computer) cannot register U-Boot USB
device and is failing with errors:
usb 1-1: new full-speed USB device number 86 using xhci_hcd
usb 1-1: Device not responding to setup address.
usb 1-1: Device not responding to setup address.
usb 1-1: device not accepting address 86, error -71
U-Boot was writing address to faddr register too early and did not wait for
correct interrupt after which should update address.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
If musb_peri_rx_ep() was called to process received HW buffer but U-Boot
cannot read it yet (e.g. because U-Boot SW buffer is full) then interrupt
was marked as processed also when HW buffer stayed unprocessed.
U-Boot tried to process this buffer again when it received interrupt again,
but it can receive it only when sender (host) sends a new data. As sender
(host) is not going to send a new data until U-Boot process current data
this issue caused a deadlock in case sender (host) is emitting data faster
than U-Boot can process it.
Reading musb intrrx register automatically clears this register and marks
interrupt as processed. So to prevent marking interrupt in U-Boot as
processed, adds a new variable pending_intrrx which would contain
unprocessed bits of intrrx register.
For a second step, every time when musb_peri_rx_ep() is called and there
are waiting data to be processed (signaled by MUSB_RXCSR_RXPKTRDY) either
acknowledge sender (via musb_peri_rx_ack()) that whole HW buffer was
processed or set corresponding bit in pending_intrrx that HW buffer was not
fully processed yet and next iteration is required after U-Boot allocates
space for reading HW buffer.
This patch fixes receiving large usb buffers, e.g. file transfer via Kermit
protocol implemented by 'loadb' U-Boot command over usbtty serial console.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
If udc_endpoint_write() was called with bigger payload which does not fit
into one USB packet it is needed to transmit payload in more USB packets.
First packet is transmitted by udc_endpoint_write() call itself and other
packets are put into waiting queue.
Implement function musb_peri_tx() which checks if endpoints are ready for
transmit and continue transmission of waiting queue.
This patch fixes sending big output from printenv command over usbtty
serial console.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>>
PERI_RXCSR is 16bit register so store its value into 16bit local variable.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
This patch fixes configuring FIFOs for one-directional endpoints which have
only one queue (either RX or TX, but noth both).
Size of FIFO buffer is 2^(idx+3) bytes and starting address is 2^(addr+3).
Moreover first 64 bytes are reserved for EP0.
Without this patch if FIFO size specified by caller was zero then idx was
incorrectly calculated (expr. ffs(0)-1) and size overflowed in fifosz
register. This register uses has only 4 bits for FIFO size. Moreover
specifying zero buffer size is not possible (with idx=0 is minimal buffer
size 8 bytes).
So even for one-directional endpoints we need to correctly specify both
(RX and TX) FIFO buffer sizes and its addresses.
This patch is fixing calculation of start address and buffer size to
minimal value and ensures that it would not overlap with buffer reserved
for EP0.
This issue caused loose of packets on USB bus in both directions and
basically usbtty was unusable.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Without this patch clearing was done only when U-Boot was compiled with
MUSB Host Controller. But clearing of data toggle bit is needed also for
MUSB Device Controller otherwise Device Controller does not work correctly.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Function next_urb() selects the last urb data buffer from linked list to
which next data from usbtty's puts function should be appended.
But to check if TX data still exists it is needed to look at the first urb
data buffer from linked list. So check for endpoint->tx_urb (first from the
linked list) instead of current_urb (the last from the linked list).
Successful call to udc_endpoint_write() may invalidate active urb and
allocate new urb in queue which invalidates pointer returned by next_urb()
function.
So call next_urb() prior putting data into urb buffer and call it every
time after using udc_endpoint_write() function to prevent sending data from
usbtty's puts function in incorrect order.
This patch fixes issue that usbtty code does not transmit data when they
are waiting in the tx queue.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
This function has incorrect implementation of prepending CR prior LF.
Without this patch it prepended CR prior whole string which is going to be
written and let LF without leading CR. Fix this issue by inserting CR at
correct place to make output on usbtty serial console more readable.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
