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fsl-ddr: add the override for write leveling

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add the override for write leveling sampling and
start time according to specific board.

Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Dave Liu
2009-12-16 10:24:37 -06:00
committed by Kumar Gala
parent 0a71c92c7e
commit bdc9f7b5ea
3 changed files with 21 additions and 7 deletions
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7
include/asm-ppc/fsl_ddr_sdram.h
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@@ -1,5 +1,5 @@
/*
* Copyright 2008 Freescale Semiconductor, Inc.
* Copyright 2008-2009 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -177,6 +177,11 @@ typedef struct memctl_options_s {
unsigned int clk_adjust; /* */
unsigned int cpo_override;
unsigned int write_data_delay; /* DQS adjust */
unsigned int wrlvl_override;
unsigned int wrlvl_sample; /* Write leveling */
unsigned int wrlvl_start;
unsigned int half_strength_driver_enable;
unsigned int twoT_en;
unsigned int threeT_en;