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Mon, 30 Sep 2024 05:44:40 -0700 (PDT) From: neil.armstrong@linaro.org Date: Mon, 30 Sep 2024 14:44:30 +0200 Subject: [PATCH v3 08/13] ufs: Clear UECPA once due to LINERESET has happened during LINK_STARTUP MIME-Version: 1.0 Message-Id: <20240930-topic-ufs-enhancements-v3-8-58234f84ab89@linaro.org> References: <20240930-topic-ufs-enhancements-v3-0-58234f84ab89@linaro.org> In-Reply-To: <20240930-topic-ufs-enhancements-v3-0-58234f84ab89@linaro.org> To: Tom Rini , Bhupesh Sharma , Neha Malcom Francis Cc: Michal Simek , Marek Vasut , bmeng.cn@gmail.com, u-boot@lists.denx.de, u-boot-qcom@groups.io, Neil Armstrong , Venkatesh Yadav Abbarapu , Bhupesh Sharma X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=901; i=neil.armstrong@linaro.org; h=from:subject:message-id; bh=H/JIMlu6LXL5TwiLe2RHNPxjiY85MChmdMxPyHH9Kvk=; b=owEBbQKS/ZANAwAKAXfc29rIyEnRAcsmYgBm+p0r+Lr48jKRU2C6KU0llUr6CxWX+jXBtz4CfaJ4 Xi9P1saJAjMEAAEKAB0WIQQ9U8YmyFYF/h30LIt33NvayMhJ0QUCZvqdKwAKCRB33NvayMhJ0awAD/ 9FlMjmV6ocdZZsgIP9C28mJ9wso7ZjEVqCPq/5107XSirYf4cJVxRqS5mpwGHMM19URdcz7AHYpWl7 OBl9c777F7GFGpw6ZyA3lRe3eu8d69uGmVyE9epTSY3QEB4yfyld0OAyg7ABsu0svlYhBIwMFq/71P kAFIlaldVUxOWecx/a8zqmz8hCYYwYkBzCRrlWLumLXhYPEiUI20UcArVAOrwvmIhUe8eAYtcAJn4o /3dBoEYxnXi9bKqyT3VhhL34tMBRoevqZubkfSnZrDOEII8oGjs60JEAmMXVvuG6VPXCL1YD96jXAS 000lNiQePGSjghJlb9IBhkjmKXCy883lCoc5HAjM/j64lYxO0lhZ8Ni8y2zzD6NKcZOyK3TAqp5R+u RqHjhxYpG7C90AlxPDYsCgKyMeq0XYpiHTZxjp4qSnMNNm+pqcQaHTTHYXk4YOvk+UJJAXBpN5AcqE 6RkYtgYnN3xS1dR+Ma/Euezwhsoec675HQpLGHb3jx8xOtGDPGZHJgzIIKkjssTuGNPtEChNKTxivQ I8HOoPQJD2JMRoH9tPfzKI9+2U4Y8H0rUMEuV/JkiWQrWdPe+5a+d+KkgoNxrIXuxYJLM8B/gkwtQN knvwKKRm8tTzST6zU7CUDt3W6rF9qZrpwJLPZpkZFEkuuV2ObyFOHSwHCO8g== X-Developer-Key: i=neil.armstrong@linaro.org; a=openpgp; fpr=89EC3D058446217450F22848169AB7B1A4CFF8AE X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean From: Bhupesh Sharma 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 Tested-by: Venkatesh Yadav Abbarapu --- drivers/ufs/ufs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/ufs/ufs.c b/drivers/ufs/ufs.c index d99dcdef7d0..565a6af1404 100644 --- a/drivers/ufs/ufs.c +++ b/drivers/ufs/ufs.c @@ -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)