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| author | Alexandru Gagniuc <mr.nuke.me@gmail.com> | 2020-09-15 14:51:46 -0500 |
|---|---|---|
| committer | Patrick Delaunay <patrick.delaunay@st.com> | 2020-10-21 09:57:14 +0200 |
| commit | f80b8ac69bbbd38636562e8d8f4123d2633aa448 (patch) | |
| tree | f4c1229556fd35a26a0507beed85477e5bfd2de9 /drivers | |
| parent | 7ec87e4192215815b658c3f8b34e4be010103149 (diff) | |
| download | u-boot-f80b8ac69bbbd38636562e8d8f4123d2633aa448.zip u-boot-f80b8ac69bbbd38636562e8d8f4123d2633aa448.tar.gz u-boot-f80b8ac69bbbd38636562e8d8f4123d2633aa448.tar.bz2 | |
mmc: mmc_of_parse: Enable 52 MHz support with "cap-mmc-highspeed"
"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>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Tested-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/mmc-uclass.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mmc/mmc-uclass.c b/drivers/mmc/mmc-uclass.c index ec59bcd..285ac48 100644 --- a/drivers/mmc/mmc-uclass.c +++ b/drivers/mmc/mmc-uclass.c @@ -228,7 +228,7 @@ int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg) if (dev_read_bool(dev, "cap-sd-highspeed")) cfg->host_caps |= MMC_CAP(SD_HS); if (dev_read_bool(dev, "cap-mmc-highspeed")) - cfg->host_caps |= MMC_CAP(MMC_HS); + cfg->host_caps |= MMC_CAP(MMC_HS) | MMC_CAP(MMC_HS_52); if (dev_read_bool(dev, "sd-uhs-sdr12")) cfg->host_caps |= MMC_CAP(UHS_SDR12); if (dev_read_bool(dev, "sd-uhs-sdr25")) |