From: Jerome Brunet Date: Thu, 26 Apr 2018 10:50:46 +0000 (+0200) Subject: ARM64: dts: meson: disable sd-uhs modes on the libretech-cc X-Git-Tag: v4.14.53~105 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=728ea2302acc19cd83164b38408fd5f84e5153b2;p=platform%2Fkernel%2Flinux-rpi.git 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 Cc: stable@vger.kernel.org Signed-off-by: Kevin Hilman Signed-off-by: Greg Kroah-Hartman --- 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 64c54c9..d71cbf5 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;