[U-Boot] [linux-sunxi] [PATCH v2 5/6] sunxi: add Kconfig option for the maximum accessible DRAM

[Jagan Teki]

On Thu, Oct 25, 2018 at 2:53 PM Icenowy Zheng <icenowy at aosc.io> wrote:
>
> Allwinner 64-bit SoCs can use 4GiB DRAM chip, however their memory map
> has only allocated 3GiB for DRAM, so only 3GiB of the DRAM is
> accessible.
>
> Add a Kconfig option for the maximum accessible DRAM.
>
> For A80 it should be a much higher value (8GiB), but as I have no A80
> device to test and originally U-Boot only supports 2GiB DRAM on A80, it
> currently still falls under the 2GiB situation.
>
> Signed-off-by: Icenowy Zheng <icenowy at aosc.io>
> ---
> This used to be in another patchset targeting 3GiB support.
>
> Changes in v2:
> - Add H6 to SoCs that support 3GiB DRAM.
>
>  arch/arm/mach-sunxi/Kconfig | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
> index 764337c643..e9e1b4bc0e 100644
> --- a/arch/arm/mach-sunxi/Kconfig
> +++ b/arch/arm/mach-sunxi/Kconfig
> @@ -140,6 +140,14 @@ config MACH_SUNXI_H3_H5
>         select SUNXI_GEN_SUN6I
>         select SUPPORT_SPL
>
> +# TODO: try out A80's 8GiB DRAM space
> +config SUNXI_DRAM_MAX_SIZE
> +       hex
> +       default 0xC0000000 if MACH_SUN50I
> +       default 0xC0000000 if MACH_SUN50I_H5
> +       default 0xC0000000 if MACH_SUN50I_H6

Moved in to single line and

Applied to u-boot-sunxi/master