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authorAlexandru Gagniuc <mr.nuke.me@gmail.com>2020-09-15 14:51:46 -0500
committerPatrick Delaunay <patrick.delaunay@st.com>2020-10-21 09:57:14 +0200
commitf80b8ac69bbbd38636562e8d8f4123d2633aa448 (patch)
treef4c1229556fd35a26a0507beed85477e5bfd2de9
parent7ec87e4192215815b658c3f8b34e4be010103149 (diff)
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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>
-rw-r--r--drivers/mmc/mmc-uclass.c2
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"))