tag c526e7bf45a5e4137ccf90cd9a5a8a7e8802f464
tagger Ulf Hansson <ulf.hansson@linaro.org> Fri Jun 16 08:15:32 2017 +0200
object 24835611a96e9b41ad57dd5024915106293be7e9

MMC host:
 - meson-gx: work around broken SDIO with certain WiFi chips

commit 24835611a96e9b41ad57dd5024915106293be7e9
author Heiner Kallweit <hkallweit1@gmail.com> Sat Jun 10 13:36:38 2017 +0200
committer Ulf Hansson <ulf.hansson@linaro.org> Mon Jun 12 08:58:16 2017 +0200
tree 02712b8f6363937cec0dd4ad6bcb9fba079a243d
parent 32c1431eea4881a6b17bd7c639315010aeefa452

mmc: meson-gx: work around broken SDIO with certain WiFi chips

There have been reports about SDIO failing with certain WiFi chips in
descriptor chain mode. SD / eMMC are working fine.

So let's fall back to bounce buffer mode for command SD_IO_RW_EXTENDED.
This was reported to fix the error.

Fixes: 79ed05e329c3 "mmc: meson-gx: add support for descriptor chain mode"
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>