Hi Peng,
From: Uboot-stm32 uboot-stm32-bounces@st-md-mailman.stormreply.com On Behalf Of Patrick DELAUNAY
Hi,
From: Alexandru Gagniuc mr.nuke.me@gmail.com Sent: mardi 15 septembre 2020 21:52
"cap-mmc-highspeed" enables support for 26 MHz MMC, but there is no additional flag to enable 52 MHz MMC. In Linux. "cap-mmc-highspeed" is used for MMC HS at both 26MHz and 52MHz.
Use the same approach and enable MMC_CAP(MMC_HS_52) host capability when "cap-mmc-highspeed" is found in the devicetree. In the event an MMC card doesn't support 52 MHz, it will be clocked at a speed based on its EXT CSD, even on 52 MHz host controllers
Signed-off-by: Alexandru Gagniuc mr.nuke.me@gmail.com
drivers/mmc/mmc-uclass.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Patrick Delaunay patrick.delaunay@st.com Tested-by: Patrick Delaunay patrick.delaunay@st.com
Tested on STM32MP157C-EV1, for mmc 1 = emmc with patch [1]
Mode: MMC High Speed (52MHz)
[1]: mmc: stm32_sdmmc2: Use mmc_of_parse() to read host capabilities http://patchwork.ozlabs.org/project/uboot/patch/20200909215402.366561-1- mr.nuke.me@gmail.com/
Today this patch is delegate to me in patchwork even it is a mmc core patch:
http://patchwork.ozlabs.org/project/uboot/list/?series=201912
You are OK if I integrate this patch in my stm32 pull request for v2020.01-rc1 or I delegate to you ?
Thanks
Patrick _______________________________________________ Uboot-stm32 mailing list Uboot-stm32@st-md-mailman.stormreply.com https://st-md-mailman.stormreply.com/mailman/listinfo/uboot-stm32