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DDR3 ODT resume to 120ohm
author
hecanyang
<hcy@ubuntu-fs.(none)>
Fri, 11 May 2012 03:02:11 +0000
(11:02 +0800)
committer
hecanyang
<hcy@ubuntu-fs.(none)>
Fri, 11 May 2012 03:03:52 +0000
(11:03 +0800)
arch/arm/mach-rk30/ddr.c
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diff --git
a/arch/arm/mach-rk30/ddr.c
b/arch/arm/mach-rk30/ddr.c
index 428786300a5fa346a9cac9057b76360b96fe1fc6..3404abcece4e0ab069267d10c7b90438f963c8b2 100755
(executable)
--- a/
arch/arm/mach-rk30/ddr.c
+++ b/
arch/arm/mach-rk30/ddr.c
@@
-1318,7
+1318,7
@@
static __sramfunc void ddr_adjust_config(uint32_t dram_type)
//adjust DRV and ODT
if(dram_type == DDR3)
{
- pPHY_Reg->ZQ0CR[1] = 0x
5B; //DS=40ohm,ODT=6
0ohm
+ pPHY_Reg->ZQ0CR[1] = 0x
1B; //DS=40ohm,ODT=12
0ohm
pPHY_Reg->ZQ0CR[0] |= (1<<30); //trigger
}
else if (dram_type == DDR2)