[Uboot-stm32] [PATCH 1/4] mtd: spi-nor: Add WATCHDOG_RESET() in spi_nor_core callbacks

[Patrick DELAUNAY]

Hi Patrice,

On 1/20/21 2:42 PM, Patrice Chotard wrote:
> 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 at 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 eb49a6c11c..51e0613d4c 100644
> --- a/drivers/mtd/spi/spi-nor-core.c
> +++ b/drivers/mtd/spi/spi-nor-core.c
> @@ -10,6 +10,7 @@
>    */
>   
>   #include <common.h>
> +#include <watchdog.h>
>   #include <linux/err.h>
>   #include <linux/errno.h>
>   #include <linux/log2.h>
> @@ -557,6 +558,7 @@ 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)
> @@ -1235,6 +1237,7 @@ 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


Reviewed-by: Patrick Delaunay <patrick.delaunay at foss.st.com>

Thanks

Patrick