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

[Simon Glass]

On 22 September 2016 at 20:54, Ziyuan Xu <xzy.xu at rock-chips.com> wrote:
> Hi Simon,
>
>
> On 2016年09月23日 10:39, Simon Glass wrote:
>>
>> 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?
>
>
> This patch could fix a bug while booting to kernel, which could be reproduce
> on 4 GB board. I hope someone who has 4 GB board could test it .
>
>
>>
>> Acked-by: Simon Glass <sjg at chromium.org>
>> Tested on firefly-rk3288:
>> Tested-by: Simon Glass <sjg at chromium.org>

Applied to u-boot-rockchip, thanks!