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arm: omap: sdram-nokia: add 97.6/195.2 MHz timing data 

Introduce 97.6/195.2 MHz memory timing data. Based on patches by Eduardo
Valentin, Igor Dmitriev and Juha Keski-Saari.

Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Eduardo Valentin <eduardo.valentin@nokia.com>
Cc: Igor Dmitriev <ext-dmitriev.igor@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Aaro Koskinen 2010-12-17 15:13:46 -08:00 committed by Tony Lindgren
parent 15d24e118d
commit 20dbeb1081
1 changed files with 44 additions and 0 deletions
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44
arch/arm/mach-omap2/sdram-nokia.c
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@ -44,6 +44,27 @@ struct sdram_timings {
u32 tWTR;
};
static const struct sdram_timings nokia_97dot6mhz_timings[] = {
{
.casl = 3,
.tDAL = 30725,
.tDPL = 15362,
.tRRD = 10241,
.tRCD = 20483,
.tRP = 15362,
.tRAS = 40967,
.tRC = 56330,
.tRFC = 138266,
.tXSR = 204839,
.tREF = 7798,
.tXP = 2,
.tCKE = 4,
.tWTR = 2,
},
};
static const struct sdram_timings nokia_166mhz_timings[] = {
{
.casl = 3,
@ -65,12 +86,35 @@ static const struct sdram_timings nokia_166mhz_timings[] = {
},
};
static const struct sdram_timings nokia_195dot2mhz_timings[] = {
{
.casl = 3,
.tDAL = 30725,
.tDPL = 15362,
.tRRD = 10241,
.tRCD = 20483,
.tRP = 15362,
.tRAS = 40967,
.tRC = 56330,
.tRFC = 138266,
.tXSR = 204839,
.tREF = 7752,
.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 },
{ 166000000, nokia_166mhz_timings },
{ 195200000, nokia_195dot2mhz_timings },
};
static struct omap_sdrc_params nokia_sdrc_params[ARRAY_SIZE(nokia_timings) + 1];