[PATCH] ram: rockchip: px30: add a config-based ddr selection

[Jagan Teki]

On Fri, Oct 2, 2020 at 12:10 AM Heiko Stuebner <heiko at sntech.de> wrote:
>
> From: Heiko Stuebner <heiko.stuebner at theobroma-systems.com>
>
> The SRAM on the PX30 is not big enough to hold multiple DDR configs
> so it needs to be selected during build.
>
> So far simply the DDR3 config was always selected and getting DDR4
> or LPDDR2/3 initialized would require a code modification.
>
> So add Kconfig options similar to RK3399 to allow selecting the DDR4
> and LPDDR2/3 options instead, while DDR3 stays the default as before.
>
> Signed-off-by: Heiko Stuebner <heiko.stuebner at theobroma-systems.com>
> ---

Reviewed-by: Jagan Teki <jagan at amarulasolutions.com>