[PATCH v3 3/5] rockchip: Enable pre console for rk3399

[Kever Yang]

On 2020/4/2 下午7:41, Jagan Teki wrote:
> Enable pre console buffer for rk3399 platform.
>
> This would help to capture the console messages prior to
> the console being initialised. Enabling this would help
> to capture all the console messages on video output source
> like HDMI. So we can find the full console messages of
> U-Boot proper on HDMI display when enabled it for RK3399
> platform boards.
>
> Buffer address used for pre console is 0x0f200000 which is
> ram base plus 240MiB. right now the Allwinner SoC is using
> similar computation.
>
> Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>



Reviewed-by: Kever Yang <kever.yang at rock-chips.com>

Thanks,
- Kever
> ---
>   arch/arm/mach-rockchip/Kconfig | 1 +
>   common/Kconfig                 | 1 +
>   2 files changed, 2 insertions(+)
>
> diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
> index ed7514ab75..0cb1f23d0f 100644
> --- a/arch/arm/mach-rockchip/Kconfig
> +++ b/arch/arm/mach-rockchip/Kconfig
> @@ -229,6 +229,7 @@ config ROCKCHIP_RK3399
>   	select DM_PMIC
>   	select DM_REGULATOR_FIXED
>   	select BOARD_LATE_INIT
> +	imply PRE_CONSOLE_BUFFER
>   	imply ROCKCHIP_COMMON_BOARD
>   	imply ROCKCHIP_SDRAM_COMMON
>   	imply SPL_ROCKCHIP_COMMON_BOARD
> diff --git a/common/Kconfig b/common/Kconfig
> index 46e4193fc8..bd35de3056 100644
> --- a/common/Kconfig
> +++ b/common/Kconfig
> @@ -568,6 +568,7 @@ config PRE_CON_BUF_ADDR
>   	default 0x2f000000 if ARCH_SUNXI && MACH_SUN9I
>   	default 0x4f000000 if ARCH_SUNXI && !MACH_SUN9I
>   	default 0x0f000000 if ROCKCHIP_RK3288
> +	default 0x0f200000 if ROCKCHIP_RK3399
>   	help
>   	  This sets the start address of the pre-console buffer. This must
>   	  be in available memory and is accessed before relocation and