There is already code in drivers/watchdog/imxwd.c to handle this. Is
that obsolete now?
On Fri, 2018-04-20 at 18:05 -0700, Andrey Smirnov wrote:
> Signed-off-by: Andrey Smirnov <andrew.smir...@gmail.com>
> ---
> arch/arm/mach-imx/imx6.c | 13 ++++++++++++-
> arch/arm/mach-imx/include/mach/reset-reason.h | 2 ++
> 2 files changed, 14 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/mach-imx/imx6.c b/arch/arm/mach-imx/imx6.c
> index 88165adee..49610bf08 100644
> --- a/arch/arm/mach-imx/imx6.c
> +++ b/arch/arm/mach-imx/imx6.c
> @@ -19,6 +19,7 @@
> #include <mach/imx6.h>
> #include <mach/generic.h>
> #include <mach/revision.h>
> +#include <mach/reset-reason.h>
> #include <mach/imx6-anadig.h>
> #include <mach/imx6-regs.h>
> #include <mach/generic.h>
> @@ -173,10 +174,20 @@ int imx6_cpu_revision(void)
> return soc_revision;
> }
>
> +static const struct imx_reset_reason imx6_reset_reasons[] = {
> + { IMX_SRC_SRSR_IPP_RESET, RESET_POR, 0 },
> + { IMX_SRC_SRSR_WDOG1_RESET, RESET_WDG, 0 },
> + { IMX_SRC_SRSR_JTAG_RESET, RESET_JTAG, 0 },
> + { IMX_SRC_SRSR_JTAG_SW_RESET, RESET_JTAG, 0 },
> + { IMX_SRC_SRSR_WARM_BOOT, RESET_RST, 0 },
> + { /* sentinel */ }
> +};
> +
> int imx6_init(void)
> {
> const char *cputypestr;
> u32 mx6_silicon_revision;
> + void __iomem *src = IOMEM(MX6_SRC_BASE_ADDR);
>
> imx6_init_lowlevel();
>
> @@ -221,7 +232,7 @@ int imx6_init(void)
> }
>
> imx_set_silicon_revision(cputypestr, mx6_silicon_revision);
> -
> + imx_set_reset_reason(src + IMX6_SRC_SRSR,
> imx6_reset_reasons);
> imx6_setup_ipu_qos();
> imx6ul_enet_clk_init();
>
> diff --git a/arch/arm/mach-imx/include/mach/reset-reason.h
> b/arch/arm/mach-imx/include/mach/reset-reason.h
> index 39afc4b28..f2544a303 100644
> --- a/arch/arm/mach-imx/include/mach/reset-reason.h
> +++ b/arch/arm/mach-imx/include/mach/reset-reason.h
> @@ -14,6 +14,8 @@
> #define IMX_SRC_SRSR_TEMPSENSE_RESET BIT(9)
> #define IMX_SRC_SRSR_WARM_BOOT BIT(16)
>
> +#define IMX6_SRC_SRSR 0x008
> +
> struct imx_reset_reason {
> uint32_t mask;
> enum reset_src_type type;
--
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