[U-Boot] [PATCH 03/14] sunxi: dram: Respect the DDR3 reset timing requirements

Ian Campbell ijc at hellion.org.uk
Mon Jul 21 20:46:25 CEST 2014


On Fri, 2014-07-18 at 19:22 +0300, Siarhei Siamashka wrote:
> The RESET pin needs to be kept low for at least 200 us according
> to the DDR3 spec. So just do it the right way.
> 
> This issue did not cause any visible major problems earlier, because
> the DRAM RESET pin is usually already low after the board reset. And
> the time gap before reaching the sunxi u-boot DRAM initialization
> code appeared to be sufficient.
> 
> Signed-off-by: Siarhei Siamashka <siarhei.siamashka at gmail.com>

Acked-by: Ian Campbell <ijc at hellion.org.uk>




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