[PATCH u-boot,v2019.04-aspeed-openbmc 1/1] ARM: Aspeed: add a config for FMC_WDT2 timer reload value

[Patrick Williams]

On Sat, Dec 17, 2022 at 12:30:23AM +0800, Potin Lai wrote:
> Add a config for FMC_WDT2 timer reload, and set timer reload value if
> FMC_WDT2 is enabled.
> 
> Signed-off-by: Potin Lai <potin.lai.pt at gmail.com>
> ---
>  arch/arm/include/asm/arch-aspeed/platform.h |  2 ++
>  arch/arm/mach-aspeed/ast2600/Kconfig        | 10 ++++++++++
>  arch/arm/mach-aspeed/ast2600/scu_info.c     | 13 +++++++++++++
>  3 files changed, 25 insertions(+)
> 
> diff --git a/arch/arm/include/asm/arch-aspeed/platform.h b/arch/arm/include/asm/arch-aspeed/platform.h
> index ca270d4be1..4c2b0866fb 100644
> --- a/arch/arm/include/asm/arch-aspeed/platform.h
> +++ b/arch/arm/include/asm/arch-aspeed/platform.h
> @@ -44,6 +44,8 @@
>  #define ASPEED_FMC_CS0_BASE	0x20000000
>  #elif defined(CONFIG_ASPEED_AST2600)
>  #define ASPEED_FMC_WDT2		0x1e620064
> +#define ASPEED_FMC_WDT2_RELOAD	0x1e620068
> +#define ASPEED_FMC_WDT2_RESTART	0x1e62006C
>  #define ASPEED_SPI1_BOOT_CTRL	0x1e630064
>  #define ASPEED_MULTI_CTRL10	0x1e6e2438
>  #define ASPEED_HW_STRAP1	0x1e6e2500
> diff --git a/arch/arm/mach-aspeed/ast2600/Kconfig b/arch/arm/mach-aspeed/ast2600/Kconfig
> index f5852afa77..4c141672a1 100644
> --- a/arch/arm/mach-aspeed/ast2600/Kconfig
> +++ b/arch/arm/mach-aspeed/ast2600/Kconfig
> @@ -53,6 +53,16 @@ config TARGET_QUALCOMM_DC_SCM_V1
>  
>  endchoice
>  
> +config ASPEED_FMC_WDT2_TIMER_RELOAD
> +	int "Aspeed FMC_WDT2 timer reload value"
> +	depends on ASPEED_AST2600
> +	range 0 8191
> +	default 0
> +	help
> +	  Aspeed FMC_WDT2 timer reload value, the time unit is 0.1 second.
> +	  if this value is 0, left original FMC_WDT2 timer reload register without
> +	  change (Default 22 seconds), if it is > 0 then set timer with the value.
> +
>  source "board/aspeed/evb_ast2600/Kconfig"
>  source "board/aspeed/fpga_ast2600/Kconfig"
>  source "board/aspeed/slt_ast2600/Kconfig"
> diff --git a/arch/arm/mach-aspeed/ast2600/scu_info.c b/arch/arm/mach-aspeed/ast2600/scu_info.c
> index a2277eec58..c18bc3923a 100644
> --- a/arch/arm/mach-aspeed/ast2600/scu_info.c
> +++ b/arch/arm/mach-aspeed/ast2600/scu_info.c
> @@ -30,6 +30,9 @@ static struct soc_id soc_map_table[] = {
>  	SOC_ID("AST2625-A3", 0x0503040305030403),
>  };
>  
> +static u32 aspeed_fmc_wdt2_reload =
> +	CONFIG_ASPEED_FMC_WDT2_TIMER_RELOAD & 0x1FFF;
> +
>  void aspeed_print_soc_id(void)
>  {
>  	int i;
> @@ -302,6 +305,16 @@ void aspeed_print_2nd_wdt_mode(void)
>  
>  			printf("\n");
>  		}
> +
> +		if (aspeed_fmc_wdt2_reload &&
> +		    (readl(ASPEED_FMC_WDT2) & BIT(0))) {
> +			writel(aspeed_fmc_wdt2_reload, ASPEED_FMC_WDT2_RELOAD);
> +			writel(0x4755, ASPEED_FMC_WDT2_RESTART);
> +			printf("Set FMC_WDT2 timer reload value to 0x%04X\n",
> +			       aspeed_fmc_wdt2_reload);
> +		} else {
> +			printf("Keep FMC_WDT2 timer reload value as init\n");
> +		}
>  	}
>  }
>  
> -- 
> 2.31.1
> 

Reviewed-by: Patrick Williams <patrick at stwcx.xyz>

-- 
Patrick Williams
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