[U-Boot] [PATCH] powerpc/c29xpcie: modify DDR parameter to make DDR more stable

Po Liu Po.Liu at freescale.com
Wed Aug 21 08:23:42 CEST 2013


DDR parameters clk_adjust were changed. This can make the DDR
run more stable. The new value were gotten by the DDR testing
tool.

Signed-off-by: Po Liu <Po.Liu at freescale.com>
---
 board/freescale/c29xpcie/ddr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/board/freescale/c29xpcie/ddr.c b/board/freescale/c29xpcie/ddr.c
index b017cfd..3337d6c 100644
--- a/board/freescale/c29xpcie/ddr.c
+++ b/board/freescale/c29xpcie/ddr.c
@@ -62,7 +62,7 @@ void fsl_ddr_board_options(memctl_options_t *popts,
 				unsigned int ctrl_num)
 {
 	int i;
-	popts->clk_adjust = 2;
+	popts->clk_adjust = 4;
 	popts->cpo_override = 0x1f;
 	popts->write_data_delay = 4;
 	popts->half_strength_driver_enable = 1;
-- 
1.8.0




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