Messages in this thread | | | From | Heiko Stübner <> | Subject | Re: mmc: core: Fix access to HS400-ES devices | Date | Fri, 10 Mar 2017 09:46:08 +0100 |
| |
Am Mittwoch, 1. März 2017, 14:11:47 CET schrieb Guenter Roeck: > HS400-ES devices fail to initialize with the following error messages. > > mmc1: power class selection to bus width 8 ddr 0 failed > mmc1: error -110 whilst initialising MMC card > > This was seen on Samsung Chromebook Plus. Code analysis points to > commit 3d4ef329757c ("mmc: core: fix multi-bit bus width without > high-speed mode"), which attempts to set the bus width for all but > HS200 devices unconditionally. However, for HS400-ES, the bus width > is already selected. > > Cc: Anssi Hannula <anssi.hannula@bitwise.fi> > Cc: Douglas Anderson <dianders@chromium.org> > Cc: Brian Norris <briannorris@chromium.org> > Fixes: 3d4ef329757c ("mmc: core: fix multi-bit bus width ...") > Signed-off-by: Guenter Roeck <linux@roeck-us.net> > Reviewed-by: Douglas Anderson <dianders@chromium.org> > Reviewed-by: Shawn Lin <shawn.lin@rock-chip.com>
On a rk3399-kevin and the current mainline kernel from 20170309 it makes the issue go away and the emmc work again, so
Tested-by: Heiko Stuebner <heiko@sntech.de>
| |