diff options
| author | Patrice Chotard <patrice.chotard@st.com> | 2017-09-04 17:56:22 +0200 |
|---|---|---|
| committer | Jaehoon Chung <jh80.chung@samsung.com> | 2017-09-28 20:23:19 +0900 |
| commit | b312c590bcd836d2596afcf4f0c16a1bf6b21465 (patch) | |
| tree | 40607ab5300042ca86a25700464732a0d0062902 /drivers/mmc/Kconfig | |
| parent | 6e9b109aa9bcdd094e77da9fb03de8b44da8eb9d (diff) | |
mmc: Add MMC support for stm32h7 Socs
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@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/mmc/Kconfig')
| -rw-r--r-- | drivers/mmc/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index fa24c52351..24b4eadd2a 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -384,6 +384,14 @@ 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 && BLK && OF_CONTROL && DM_MMC_OPS + 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 config TEGRA124_MMC_DISABLE_EXT_LOOPBACK |