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ufs: Clear UECPA once due to LINERESET has happened during LINK_STARTUP

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Clear UECPA once in u-boot UFS driver due to LINERESET has happened
during LINK_STARTUP. This makes the u-boot ufs driver behavior related
to UECPA similar to Linux UFS driver.

Ported from Linux kernel commit:
2355b66ed20c ("scsi: ufs: Handle LINERESET indication in err handler")

Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Tested-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Tested-by: Julius Lehmann <lehmanju@devpi.de>
Link: https://lore.kernel.org/r/20240930-topic-ufs-enhancements-v3-8-58234f84ab89@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
This commit is contained in:
Bhupesh Sharma
2024-10-14 08:55:28 +02:00
committed by Neil Armstrong
parent fdd33a7f14
commit 002afccdaf
1 changed files with 2 additions and 0 deletions
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drivers/ufs/ufs.c
+2
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@@ -504,6 +504,8 @@ link_startup:
if (ret)
goto out;
/* Clear UECPA once due to LINERESET has happened during LINK_STARTUP */
ufshcd_readl(hba, REG_UIC_ERROR_CODE_PHY_ADAPTER_LAYER);
ret = ufshcd_make_hba_operational(hba);
out:
if (ret)