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Tue, 26 Jul 2022 17:31:34 +0900 (KST) Received: from [10.113.113.235] (unknown [10.113.113.235]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20220726083134epsmtip15a2f4f3fd188120165baf3df33c140f6~FU_g7lhyh0119001190epsmtip1t; Tue, 26 Jul 2022 08:31:34 +0000 (GMT) Message-ID: <90f75b3f-e770-8ea4-d865-e69e110d2bdb@samsung.com> Date: Tue, 26 Jul 2022 17:31:34 +0900 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [PATCH] drivers: mmc: Reset watchdog when accessing mmc device Content-Language: en-US To: qianfanguijin@163.com, u-boot@lists.denx.de Cc: Peng Fan From: Jaehoon Chung In-Reply-To: <20220713073221.26183-1-qianfanguijin@163.com> Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrNKsWRmVeSWpSXmKPExsWy7bCmrm76svtJBn8X8lr8WPWF1eLOnW+s Fm/3drI7MHssXjGF1ePsnR2MHhvf7WAKYI7KtslITUxJLVJIzUvOT8nMS7dV8g6Od443NTMw 1DW0tDBXUshLzE21VXLxCdB1y8wB2qSkUJaYUwoUCkgsLlbSt7Mpyi8tSVXIyC8usVVKLUjJ KTAt0CtOzC0uzUvXy0stsTI0MDAyBSpMyM7Y87m44Apnxcqrj5kbGI+ydzFyckgImEgsm7gc zBYS2MEo8e1WehcjF5D9iVHi4Ot3bBDOZ0aJR0uOMMJ07Ju7hhkisYtR4mvjJyYI5z2jxI7e XawgVbwCdhIfu7+BdbAIqEp0P2hjh4gLSpyc+YQFxBYViJRYs/ssWFxYwFti684NYL3MAuIS t57MZwKxRQT0JQ78n8sOEZeXmP5qHVgNm4COxPZvx8FqOAWsJdpWz2GEqdn+dg7YdRICt9gl mh7cgDrbReLM6zNsELawxKvjW6ABICXxsh/kOJCGZkaJpUsOskI4PYwS/xquQ3UYS+xfOhlo HQfQCk2J9bv0IcKKEjt/z4XazCfx7msPK0iJhACvREebEESJisSl1y+ZYHbdffKfFcL2kFjc MIF1AqPiLKRwmYXk/1lI/pmFsHgBI8sqRrHUguLc9NRiwwITeGwn5+duYgSnQi2LHYxz337Q O8TIxMF4iFGCg1lJhDch+n6SEG9KYmVValF+fFFpTmrxIUZTYOxMZJYSTc4HJuO8knhDE0sD EzMjYxMLQzNDJXHe3qmnE4UE0hNLUrNTUwtSi2D6mDg4pRqYrCJu2ufsEVazvNgS+kmqvORv 5PSjQh47J/x4Isbz5/HKFQc7Y9cV2HGXxZwMOZiXO5EvevucJraEtO7KT5suL9yddzL2kd/n qwuuHj/5Xrrw98Y5JRl5Et+38T//4/Rpz+1z/8UuvbkrH13w/ejsQ+dmst8I/x3Efmb3pQBG 2/sGx3KEvu/rmMkSeOy22uGUeU9D9htnVRjqpRxdHVi3n8X4Q2SblKgG85qZwVsyD97qMLfy ChULfd0YkMG0XEr+9LH+7HVa/yVVN/9eLNXs+vnsHlWeezIcF0y+6Tx9sczkxt2vPAvXBGy4 GWsuLfhD+kduPcei2uPbjuUJF6klRL3XVFWflqqSdcR2x/QV+kosxRmJhlrMRcWJAIQH/zwO BAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrGLMWRmVeSWpSXmKPExsWy7bCSnG7asvtJBosazC1+rPrCanHnzjdW i7d7O9kdmD0Wr5jC6nH2zg5Gj43vdjAFMEdx2aSk5mSWpRbp2yVwZez5XFxwhbNi5dXHzA2M R9m7GDk5JARMJPbNXcPcxcjFISSwg1Hi24G1LBAJKYnPT6eydTFyANnCEocPF0PUvGWU2Nmx mxGkhlfATuJj9zcwm0VAVaL7QRs7RFxQ4uTMJ2BzRAUiJR4ua2ICsYUFvCW27tzACmIzC4hL 3HoyHywuIqAvceD/XHaIuLzE9FfrwGqEBKwkPt7fADafTUBHYvu342D1nALWEm2r5zCC3MYs oC6xfp4QTOv2t3OYJzAKzUJyxSwk22YhdMxC0rGAkWUVo2RqQXFuem6xYYFRXmq5XnFibnFp Xrpecn7uJkZw0Gtp7WDcs+qD3iFGJg7GQ4wSHMxKIrwJ0feThHhTEiurUovy44tKc1KLDzFK c7AoifNe6DoZLySQnliSmp2aWpBaBJNl4uCUamBiuqn5Y1GNTfr5fqHs2bO6g8sXxX0v2dop 2/xbdSY3R1N5YqeT9c55gX73ToTPmlMVb/lgywdNzzkt+3qSt2zXldB+v0p8uWqOsFy/U80V Tv8SwajYLuUkQ+v8mRJT+6SiQ5StN37YvbE+/lSMQeoBEx2jGR8y2/f2slkafY0yE+ZwZ11w b/XGm3/beLq2leUlHF7N3Hadb2ph5Kb/dhvWeFx3DV6dNYdn67//Uz43ih7vjJ8aMivxqwYD h97SCS9/2DG9XDzxzqnFmgVx2663qio850vdNbE6aueWk+YdJzmljvSxSwQKOi1QcioRluGw /igh5nBY5wL/Y6ttWxfxMNdv7at+sCj09+PnFkosxRmJhlrMRcWJALXUERXpAgAA X-CMS-MailID: 20220726083134epcas1p1da8e13a4364d556e820f3d45b1686b8a X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: SVC_REQ_APPROVE CMS-TYPE: 101P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20220726083134epcas1p1da8e13a4364d556e820f3d45b1686b8a References: <20220713073221.26183-1-qianfanguijin@163.com> 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 0.103.6 at phobos.denx.de X-Virus-Status: Clean On 7/13/22 16:32, qianfanguijin@163.com wrote: > From: qianfan Zhao > > watchdog will reset when 'mmc read' or 'ext4load' a large file from mmc > device. Reset watchdog when accessing mmc device. I don't know why this patch is need. Best Regards, Jaehoon Chung > > Signed-off-by: qianfan Zhao > --- > drivers/mmc/mmc.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c > index 4d9871d69f..27ffdb7fa7 100644 > --- a/drivers/mmc/mmc.c > +++ b/drivers/mmc/mmc.c > @@ -24,6 +24,7 @@ > #include > #include > #include > +#include > #include "mmc_private.h" > > #define DEFAULT_CMD6_TIMEOUT_MS 500 > @@ -297,6 +298,7 @@ int mmc_poll_for_busy(struct mmc *mmc, int timeout_ms) > if (timeout_ms-- <= 0) > break; > > + WATCHDOG_RESET(); > udelay(1000); > } > > @@ -500,6 +502,8 @@ ulong mmc_bread(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt, > blocks_todo -= cur; > start += cur; > dst += cur * mmc->read_bl_len; > + > + WATCHDOG_RESET(); > } while (blocks_todo > 0); > > return blkcnt;