[U-Boot] [PATCH] davinci: omapl138_lcdk: fix tXSNR DDR2 timing value

Tom Rini trini at konsulko.com
Fri Jun 2 14:04:06 UTC 2017


On Fri, Jun 02, 2017 at 06:07:12PM +0530, Sekhar Nori wrote:

> As per the datasheet[1] available for DDR2 part on board
> the OMAP-L138 LCDK, the tXSNR (exit self refresh to a
> non-read command) is 137.5 ns. This corresponds to a
> value of 20 to be written to T_XSNR register field of
> OMAP-L138's DDR configuration. The DDR2 is at 150 MHz.
> 
> Fix this. The correct value also appears on the initialization
> scripts (called CCS GEL files) available on TI's wiki pages[2]
> 
> [1] http://www.samsung.com/global/business/semiconductor/file/product/ds_k4t1gxx4qf_rev12-0.pdf
> [2] http://processors.wiki.ti.com/index.php/L138/C6748_Development_Kit_(LCDK)#CCS_XML_.26_GEL_Files
> 
> Signed-off-by: Sekhar Nori <nsekhar at ti.com>

Reviewed-by: Tom Rini <trini at konsulko.com>

-- 
Tom
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