[U-Boot] [PATCH v5 1/1] mmc: Add MMC support for stm32h7 Socs

[Jaehoon Chung]

On 09/09/2017 01:51 PM, Simon Glass wrote:
> On 4 September 2017 at 09:56,  <patrice.chotard at st.com> wrote:
>> From: Patrice Chotard <patrice.chotard at st.com>
>>
>> This patch adds SD/MMC support for STM32H7 SoCs.
>>
>> Here is an extraction of SDMMC main features, embedded in
>> STM32H7 SoCs.
>> The SD/MMC block include the following:
>>  _ Full compliance with MultiMediaCard System Specification
>>    Version 4.51. Card support for three different databus modes:
>>    1-bit (default), 4-bit and 8-bit.
>>  _ Full compatibility with previous versions of MultiMediaCards
>>    (backward compatibility).
>>  _ Full compliance with SD memory card specifications version 4.1.
>>    (SDR104 SDMMC_CK speed limited to maximum allowed IO speed,
>>     SPI mode and UHS-II mode not supported).
>>  _ Full compliance with SDIO card specification version 4.0.
>>    Card support for two different databus modes: 1-bit (default)
>>    and 4-bit. (SDR104 SDMMC_CK speed limited to maximum allowed IO
>>    speed, SPI mode and UHS-II mode not supported).
>>  _ Data transfer up to 208 Mbyte/s for the 8 bit mode.
>>    (depending maximum allowed IO speed).
>>  _ Data and command output enable signals to control external
>>    bidirectional drivers.
>>
>> The current version of the SDMMC supports only one SD/SDIO/MMC card
>> at any one time and a stack of MMC Version 4.51 or previous.
>>
>> Signed-off-by: Christophe Kerello <christophe.kerello at st.com>
>> Signed-off-by: Patrice Chotard <patrice.chotard at st.com>
>> ---
>>
>> v5: _ give a more meaningful name to stm32_sdmmc2_start_cmd() last param
>>     _ use readl_poll_timeout() instead of using while in stm32_sdmmc2_end_cmd()
>> v4: _ replace mmc_create() usage by mmc_bind() callback
>>     _ rename struct stm32_sdmmc2_host to stm32_sdmmc2_priv
>> v3: _ use registers offset instead of registers struct description
>>     _ rename clk_reg_add and pwr_reg_add to respectively clk_reg_msk and pwr_reg_msk
>>     _ don't exit in error if DT bus-width value is not correct, force it to 1
>>       and continue
>> v2: _ add .get_cd() callback support
>>
>>  drivers/mmc/Kconfig        |   8 +
>>  drivers/mmc/Makefile       |   1 +
>>  drivers/mmc/stm32_sdmmc2.c | 608 +++++++++++++++++++++++++++++++++++++++++++++
>>  3 files changed, 617 insertions(+)
>>  create mode 100644 drivers/mmc/stm32_sdmmc2.c
> 
> Reviewed-by: Simon Glass <sjg at chromium.org>

Applied to u-boot-mmc. Thanks!

Best Regards,
Jaehoon Chung

> 
> 
>