Hi Simon On 08/06/2017 07:15 AM, Simon Glass wrote: > Hi Patrice, > > On 20 July 2017 at 02:34, <patrice.chot...@st.com> wrote: >> From: Patrice Chotard <patrice.chot...@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.kere...@st.com> >> Signed-off-by: Patrice Chotard <patrice.chot...@st.com> >> --- >> 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 | 598 >> +++++++++++++++++++++++++++++++++++++++++++++ >> 3 files changed, 607 insertions(+) >> create mode 100644 drivers/mmc/stm32_sdmmc2.c >> >> diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig >> index 82b8d75..f2e4c26 100644 >> --- a/drivers/mmc/Kconfig >> +++ b/drivers/mmc/Kconfig >> @@ -377,6 +377,14 @@ config GENERIC_ATMEL_MCI >> the SD Memory Card Specification V2.0, the SDIO V2.0 specification >> and CE-ATA V1.1. >> >> +config STM32_SDMMC2 >> + bool "STMicroelectronics STM32H7 SD/MMC Host Controller support" >> + depends on DM_MMC && OF_CONTROL && DM_MMC_OPS > > I don't see a call to mmc_bind() anywhere. I'm not sure how this > driver actually works without that?
We use the mmc_create() API. Patrice > >> + help >> + This selects support for the SD/MMC controller on STM32H7 SoCs. >> + If you have a board based on such a SoC and with a SD/MMC slot, >> + say Y or M here. >> + >> endif > > Regards, > Simon > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
