From 5988575a9006e4171a5a59721a537a51f12fabe6 Mon Sep 17 00:00:00 2001
From: Patrice Chotard <patrice.chotard@foss.st.com>
Date: Wed, 20 Jan 2021 14:42:01 +0100
Subject: [PATCH] mtd: spi-nor: Add WATCHDOG_RESET() in spi_nor_core callbacks
In case of big area write/erase on spi nor, watchdog timeout may occurs.
Issue reproduced on stm32mp157c-ev1 with following commands:
sf write 0xC0000000 0 0x3000000
or
sf erase 0 0x1000000
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
---
drivers/mtd/spi/spi-nor-core.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c
index ef426dac02..e0efebc355 100644
--- a/drivers/mtd/spi/spi-nor-core.c
+++ b/drivers/mtd/spi/spi-nor-core.c
@@ -11,6 +11,7 @@
#include <common.h>
#include <log.h>
+#include <watchdog.h>
#include <dm.h>
#include <dm/device_compat.h>
#include <dm/devres.h>
@@ -566,6 +567,7 @@ static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr)
len = instr->len;
while (len) {
+ WATCHDOG_RESET();
#ifdef CONFIG_SPI_FLASH_BAR
ret = write_bar(nor, addr);
if (ret < 0)
@@ -1250,6 +1252,7 @@ static int spi_nor_write(struct mtd_info *mtd, loff_t to, size_t len,
for (i = 0; i < len; ) {
ssize_t written;
loff_t addr = to + i;
+ WATCHDOG_RESET();
/*
* If page_size is a power of two, the offset can be quickly
--
2.39.5