[U-Boot] [PATCH] rockchip: rk3288: sdram: fix DDR address range

Simon Glass sjg at chromium.org
Fri Sep 23 04:39:26 CEST 2016


Hi,

On 4 September 2016 at 19:39, Ziyuan Xu <xzy.xu at rock-chips.com> wrote:
> The all current Rockchip SoCs supporting 4GB of ram have problems
> accessing the memory region 0xfe000000~0xff000000. Actually, some IP
> controller can't address to, so let's limit the available range.
>
> This patch fixes a bug which found in miniarm-rk3288-4GB board. The
> U-Boot was relocated to 0xfef72000, and .bss variants was also
> relocated, such as do_fat_read_at_block. Once eMMC controller transfer
> data to do_fat_read_at_block via DMA, DMAC can't access more than
> 0xfe000000. So that DMAC didn't work sane.
>
> Signed-off-by: Ziyuan Xu <xzy.xu at rock-chips.com>
> ---
>
>  arch/arm/mach-rockchip/rk3288/sdram_rk3288.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)

No comments on this one?

Acked-by: Simon Glass <sjg at chromium.org>
Tested on firefly-rk3288:
Tested-by: Simon Glass <sjg at chromium.org>


More information about the U-Boot mailing list