diff options
| author | Jerome Brunet <jbrunet@baylibre.com> | 2018-04-26 12:50:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-03 11:24:52 +0200 |
| commit | 728ea2302acc19cd83164b38408fd5f84e5153b2 (patch) | |
| tree | 65dea5815bd25444bd40114124b2ea8215ed29ff /arch/arm64/boot/dts/amlogic | |
| parent | 64df84dcf1e4dd3b63c60dd6f36473d19060af48 (diff) | |
ARM64: dts: meson: disable sd-uhs modes on the libretech-cc
commit d5b4885b1dff72ac670b518cfeaac719d768bd4d upstream.
There is a problem with the sd-uhs mode when doing a soft reboot.
Switching back from 1.8v to 3.3v messes with the card, which no longer
respond (timeout errors). According to the specification, we should
perform a card reset (power cycling the card) but this is something we
cannot control on this design.
Then the only solution to restore the communication with the card is an
"unplug-plug" which is not acceptable
Until we find a solution, if any, disable the sd-uhs modes on this design.
For the people using uhs at the moment, there will a performance drop as
a result.
Fixes: 3cde63ebc85c ("ARM64: dts: meson-gxl: libretech-cc: enable high speed modes")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Cc: stable@vger.kernel.org
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm64/boot/dts/amlogic')
| -rw-r--r-- | arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts index 64c54c92e214..d71cbf596d1f 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts +++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts @@ -205,9 +205,6 @@ bus-width = <4>; cap-sd-highspeed; - sd-uhs-sdr12; - sd-uhs-sdr25; - sd-uhs-sdr50; max-frequency = <100000000>; disable-wp; |