In case of reading large area and memory-map mode is misconfigured (memory-map size declared lower than the real size of the memory chip) watchdog can be triggered.
Add WATCHDOG_RESET() in _stm32_qspi_read_fifo to fix it.
Issue reproduced with stm32mp157c-ev1 board and memory map size set to 1, with following command: sf read 0xC0000000 0 0x4000000
Signed-off-by: Patrice Chotard patrice.chotard@foss.st.com ---
drivers/spi/stm32_qspi.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/spi/stm32_qspi.c b/drivers/spi/stm32_qspi.c index 958c394a1a..c3da17f991 100644 --- a/drivers/spi/stm32_qspi.c +++ b/drivers/spi/stm32_qspi.c @@ -11,6 +11,7 @@ #include <clk.h> #include <reset.h> #include <spi-mem.h> +#include <watchdog.h> #include <linux/iopoll.h> #include <linux/ioport.h> #include <linux/sizes.h> @@ -163,6 +164,7 @@ static int _stm32_qspi_wait_cmd(struct stm32_qspi_priv *priv, static void _stm32_qspi_read_fifo(u8 *val, void __iomem *addr) { *val = readb(addr); + WATCHDOG_RESET(); }
static void _stm32_qspi_write_fifo(u8 *val, void __iomem *addr)