[U-Boot] [PATCH 14/15] rockchip: rk3399: Add bootcount support

[Kever Yang]

Hi Jagan,


On 2019/7/29 下午3:47, Jagan Teki wrote:
> Add bootcount support for Rockchip rk3399.
>
> The bootcount value is preserved in PMU_SYS_REG0 register,

PMU_SYS_REG0 has been used by other case in Rockchip, we don't
recommend to use it, the PMUGRF_OS_REG3 is still reserved now,
could you use it instead?

Thanks,
- Kever

> this would help to support redundent boot.
>
> Once the redundant boot triggers, the altboot command
> will look for extlinux-rollback.conf on particular
> bootable partition which supposed to be a recovery
> partition where redundant boot required.
>
> Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
> ---
>   arch/arm/mach-rockchip/Kconfig        |  2 ++
>   arch/arm/mach-rockchip/rk3399/Kconfig | 10 ++++++++++
>   include/configs/rk3399_common.h       |  5 ++++-
>   3 files changed, 16 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
> index 17f31e89f3..dd5055ed69 100644
> --- a/arch/arm/mach-rockchip/Kconfig
> +++ b/arch/arm/mach-rockchip/Kconfig
> @@ -184,6 +184,8 @@ config ROCKCHIP_RK3399
>   	imply TPL_CLK
>   	imply TPL_TINY_MEMSET
>   	imply TPL_ROCKCHIP_COMMON_BOARD
> +	imply SYS_BOOTCOUNT_SINGLEWORD if BOOTCOUNT_LIMIT
> +	imply CMD_BOOTCOUNT if BOOTCOUNT_LIMIT
>   	help
>   	  The Rockchip RK3399 is a ARM-based SoC with a dual-core Cortex-A72
>   	  and quad-core Cortex-A53.
> diff --git a/arch/arm/mach-rockchip/rk3399/Kconfig b/arch/arm/mach-rockchip/rk3399/Kconfig
> index 6660d05349..68ac913bcb 100644
> --- a/arch/arm/mach-rockchip/rk3399/Kconfig
> +++ b/arch/arm/mach-rockchip/rk3399/Kconfig
> @@ -91,6 +91,16 @@ config TPL_STACK
>   config TPL_TEXT_BASE
>           default 0xff8c2000
>   
> +if BOOTCOUNT_LIMIT
> +
> +config BOOTCOUNT_BOOTLIMIT
> +	default 3
> +
> +config SYS_BOOTCOUNT_ADDR
> +	default 0xff3100f0	# PMU_SYS_REG0
> +
> +endif # BOOTCOUNT_LIMIT
> +
>   source "board/rockchip/evb_rk3399/Kconfig"
>   source "board/theobroma-systems/puma_rk3399/Kconfig"
>   source "board/vamrs/rock960_rk3399/Kconfig"
> diff --git a/include/configs/rk3399_common.h b/include/configs/rk3399_common.h
> index 67b48e03ba..ace82928d1 100644
> --- a/include/configs/rk3399_common.h
> +++ b/include/configs/rk3399_common.h
> @@ -70,7 +70,10 @@
>   	"fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0" \
>   	"partitions=" PARTS_DEFAULT \
>   	ROCKCHIP_DEVICE_SETTINGS \
> -	BOOTENV
> +	BOOTENV \
> +	"altbootcmd=" \
> +		"setenv boot_syslinux_conf extlinux/extlinux-rollback.conf;" \
> +		"run distro_bootcmd\0"
>   
>   #endif
>