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ARM: OMAP3: sdram-nokia: add 200 MHz memory timings info 

Add memory timing info regarding the 200 MHz memory in sdram-nokia.
Note that 100 MHz mode uses these same timings too.

Signed-off-by: Igor Dmitriev <ext-dmitriev.igor@nokia.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
[tony@atomide.com: updated comments for 100 MHz timings]
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Igor Dmitriev 2011-12-13 10:48:54 -08:00 committed by Tony Lindgren
parent 3dad5356aa
commit ef211dc626
1 changed files with 24 additions and 1 deletions
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25
arch/arm/mach-omap2/sdram-nokia.c
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@ -1,7 +1,7 @@
/*
* SDRC register values for Nokia boards
*
* Copyright (C) 2008, 2010 Nokia Corporation
* Copyright (C) 2008, 2010-2011 Nokia Corporation
*
* Lauri Leukkunen <lauri.leukkunen@nokia.com>
*
@ -107,14 +107,37 @@ static const struct sdram_timings nokia_195dot2mhz_timings[] = {
},
};
static const struct sdram_timings nokia_200mhz_timings[] = {
{
.casl = 3,
.tDAL = 30000,
.tDPL = 15000,
.tRRD = 10000,
.tRCD = 20000,
.tRP = 15000,
.tRAS = 40000,
.tRC = 55000,
.tRFC = 140000,
.tXSR = 200000,
.tREF = 7800,
.tXP = 2,
.tCKE = 4,
.tWTR = 2
},
};
static const struct {
long rate;
struct sdram_timings const *data;
} nokia_timings[] = {
{ 83000000, nokia_166mhz_timings },
{ 97600000, nokia_97dot6mhz_timings },
{ 100000000, nokia_200mhz_timings },
{ 166000000, nokia_166mhz_timings },
{ 195200000, nokia_195dot2mhz_timings },
{ 200000000, nokia_200mhz_timings },
};
static struct omap_sdrc_params nokia_sdrc_params[ARRAY_SIZE(nokia_timings) + 1];