From: Jacky Bai ping.bai@nxp.com
Normally, the wdog will be used for trigger external PMIC reset through the WDOG_ANY pin. If the PMIC chip has debounce logic for the reset signal, in some corner case the wdog can NOT trigger external PMIC reset if the SoC has been reset internal before the PMIC captures the WDOG_ANY pin reset, so need to keep the WDOG3-5 reset masked in the SRC to let the PMIC to do the reset safely.
Reviewed-by: Ye Li ye.li@nxp.com Signed-off-by: Jacky Bai ping.bai@nxp.com Signed-off-by: Peng Fan peng.fan@nxp.com --- arch/arm/mach-imx/imx9/soc.c | 6 ------ 1 file changed, 6 deletions(-)
diff --git a/arch/arm/mach-imx/imx9/soc.c b/arch/arm/mach-imx/imx9/soc.c index 112773f98f6..df259c26ad8 100644 --- a/arch/arm/mach-imx/imx9/soc.c +++ b/arch/arm/mach-imx/imx9/soc.c @@ -240,15 +240,9 @@ static void disable_wdog(void __iomem *wdog_base)
void init_wdog(void) { - u32 src_val; - disable_wdog((void __iomem *)WDG3_BASE_ADDR); disable_wdog((void __iomem *)WDG4_BASE_ADDR); disable_wdog((void __iomem *)WDG5_BASE_ADDR); - - src_val = readl(0x54460018); /* reset mask */ - src_val &= ~0x1c; - writel(src_val, 0x54460018); }
static struct mm_region imx93_mem_map[] = {