[U-Boot] [PATCH v2] rockchip: sdram-common: fix wrong size for 4GB in 32bit SoC

[Simon Glass]

On Thu, 27 Dec 2018 at 18:57, Kever Yang <kever.yang at rock-chips.com> wrote:
>
> This is workaround for issue we can't get correct size for 4GB ram
> in 32bit system and available before we really need ram space
> out of 4GB, eg.enable ARM LAPE(rk3288 supports 8GB ram).
> The size of 4GB is '0x1 00000000', and this value will be truncated
> to 0 in 32bit system, and system can not get correct ram size.
> Rockchip SoCs reserve a blob of space for peripheral near 4GB,
> and we are now setting SDRAM_MAX_SIZE as max available space for
> ram in 4GB, so we can use this directly to workaround the issue.
>
> Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
> ---
>
> Changes in v2:
> - update the commit message and comment to show this is a workaround.
>
>  arch/arm/mach-rockchip/sdram_common.c | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)

Reviewed-by: Simon Glass <sjg at chromium.org>
Tested on chromebook_minnie:
Tested-by: Simon Glass <sjg at chromium.org>