[PATCH v4 02/11] rockchip: NR_DRAM_BANKS now defaults to 10 when Rockchip TPL blob is used

[Kever Yang]

On 2024/4/25 18:46, Quentin Schulz wrote:
> From: Quentin Schulz <quentin.schulz at theobroma-systems.com>
>
> When Rockchip TPL blob is used, the memory areas that can be used for
> DRAM is gotten from ATAGS passed through the DRAM at a specific address.
>
> The DDR_MEM tag contains at most 10 areas, so we should default to 10 if
> Rockchip TPL blob is used. Note that it is technically possible we need
> more if one of those 10 areas overlaps with reserved memory area,
> forcing us to split it in two. But a default doesn't need to handle all
> cases, only most.
>
> Signed-off-by: Quentin Schulz <quentin.schulz at theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang at rock-chips.com>

Thanks,
- Kever
> ---
>   arch/arm/mach-rockchip/Kconfig | 3 +++
>   1 file changed, 3 insertions(+)
>
> diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
> index 4f22d9bde9f..644f7997a29 100644
> --- a/arch/arm/mach-rockchip/Kconfig
> +++ b/arch/arm/mach-rockchip/Kconfig
> @@ -574,6 +574,9 @@ config ROCKCHIP_COMMON_STACK_ADDR
>   	imply TPL_SYS_MALLOC_F if TPL
>   	imply TPL_SYS_MALLOC_SIMPLE if TPL
>   
> +config NR_DRAM_BANKS
> +	default 10 if ROCKCHIP_EXTERNAL_TPL
> +
>   source "arch/arm/mach-rockchip/px30/Kconfig"
>   source "arch/arm/mach-rockchip/rk3036/Kconfig"
>   source "arch/arm/mach-rockchip/rk3066/Kconfig"
>