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arm64: tegra: Disable CQE Support for SDMMC4 on Tegra186 

Enabling CQE support on Tegra186 Jetson TX2 has introduced a regression
that is causing accesses to the file-system on the eMMC to fail. Errors
such as the following have been observed ...

 mmc2: running CQE recovery
 mmc2: mmc_select_hs400 failed, error -110
 print_req_error: I/O error, dev mmcblk2, sector 8 flags 80700
 mmc2: cqhci: CQE failed to exit halt state

For now disable CQE support for Tegra186 until this issue is resolved.

Fixes: dfd3cb6feb arm64: tegra: Add CQE Support for SDMMC4
Signed-off-by: Jonathan Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
hifive-unleashed-5.1
Jonathan Hunter 2019-03-25 12:28:07 +01:00 committed by Arnd Bergmann
parent 2e8c54db3b
commit 9395874219
1 changed files with 0 additions and 1 deletions
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arch/arm64/boot/dts/nvidia/tegra186.dtsi
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@ -321,7 +321,6 @@
nvidia,default-trim = <0x9>;
nvidia,dqs-trim = <63>;
mmc-hs400-1_8v;
supports-cqe;
status = "disabled";
};