From: qianfan Zhao <qianfangui...@163.com>
watchdog will reset when 'mmc read' or 'ext4load' a large file from mmc
device. Reset watchdog when accessing mmc device.
Signed-off-by: qianfan Zhao <qianfangui...@163.com>
---
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 <memalign.h>
#include <linux/list.h>
#include <div64.h>
+#include <watchdog.h>
#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;
--
2.25.1
