arm64: tegra: Disable CQE Support for SDMMC4 on Tegra186
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Message ID 1550063849-24719-1-git-send-email-jonathanh@nvidia.com
State New
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Series
  • arm64: tegra: Disable CQE Support for SDMMC4 on Tegra186
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Commit Message

Jon Hunter Feb. 13, 2019, 1:17 p.m. UTC
From: Jonathan Hunter <jonathanh@nvidia.com>

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: dfd3cb6feb73 arm64: tegra: Add CQE Support for SDMMC4
Signed-off-by: Jonathan Hunter <jonathanh@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra186.dtsi | 1 -
 1 file changed, 1 deletion(-)

Patch
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diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index bb2045be8814..97aeb946ed5e 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -321,7 +321,6 @@ 
 		nvidia,default-trim = <0x9>;
 		nvidia,dqs-trim = <63>;
 		mmc-hs400-1_8v;
-		supports-cqe;
 		status = "disabled";
 	};