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| author | Sekhar Nori <nsekhar@ti.com> | 2017-06-02 18:07:12 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-06-09 11:24:01 -0400 |
| commit | 264e420f365cd673a0076adfcb975ead7139aedc (patch) | |
| tree | 1d8b00fb66eb811ec767484f7e11ee7bb242b6f8 /arch/arm/mach-omap2/am33xx/ddr.c | |
| parent | 314f6362c47c8e43b1fd216fcf1dbed355608b05 (diff) | |
davinci: omapl138_lcdk: fix tXSNR DDR2 timing value
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@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'arch/arm/mach-omap2/am33xx/ddr.c')
0 files changed, 0 insertions, 0 deletions