> Subject: RE: [PATCH 1/2] mmc: mmc_of_parse: Enable 52 MHz support with > "cap-mmc-highspeed" > > Hi Peng, > > > From: Uboot-stm32 > <[email protected]> > > On Behalf Of Patrick DELAUNAY > > > > Hi, > > > > > From: Alexandru Gagniuc <[email protected]> > > > 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 <[email protected]> > > > --- > > > drivers/mmc/mmc-uclass.c | 2 +- > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > > Reviewed-by: Patrick Delaunay <[email protected]> > > Tested-by: Patrick Delaunay <[email protected]> > > > > 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 > > > > https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpatch > > > work.ozlabs.org%2Fproject%2Fuboot%2Fpatch%2F20200909215402.366561- > 1-&a > > > mp;data=02%7C01%7Cpeng.fan%40nxp.com%7C2242885f15fb4bc5a38508d > 866d261c > > > e%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63737240105383 > 8309& > > > sdata=NJ1fDTquBTBOQVMdxYf3gTExxkNEHeZ9mnazXAKY0GQ%3D&rese > rved=0 > > [email protected]/ > > Today this patch is delegate to me in patchwork even it is a mmc core patch: > > https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpatchw > ork.ozlabs.org%2Fproject%2Fuboot%2Flist%2F%3Fseries%3D201912&da > ta=02%7C01%7Cpeng.fan%40nxp.com%7C2242885f15fb4bc5a38508d866d2 > 61ce%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63737240105 > 3848304&sdata=J4b9Dy%2FnujRrpiYtaQbIq68w%2F2FfKlKoMheH8Mtae > P8%3D&reserved=0 > > You are OK if I integrate this patch in my stm32 pull request for v2020.01-rc1 > or I delegate to you ?
You could take that first. My PR will be later. Thanks, Peng. > > > > > Thanks > > > > Patrick > > _______________________________________________ > > Uboot-stm32 mailing list > > [email protected] > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fst-m > > > d-mailman.stormreply.com%2Fmailman%2Flistinfo%2Fuboot-stm32&dat > a=0 > > > 2%7C01%7Cpeng.fan%40nxp.com%7C2242885f15fb4bc5a38508d866d261ce > %7C686ea > > > 1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C637372401053848304& > sdata=DDw > > > sEwf%2F%2B3JOeITkO2pnUjJFu4hpru5DqY5FUGNnXdM%3D&reserved= > 0
