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authorAaro Koskinen <aaro.koskinen@nokia.com>2010-12-17 15:13:46 -0800
committerTony Lindgren <tony@atomide.com>2010-12-17 15:13:46 -0800
commit20dbeb1081327aefaac7044d9908c97bf445858c (patch)
tree274980d2d9d88bfbb01339173183571a921d8c43 /arch
parent15d24e118d51601a5cc2f021005aa7354b03b1c8 (diff)
downloadop-kernel-dev-20dbeb1081327aefaac7044d9908c97bf445858c.zip
op-kernel-dev-20dbeb1081327aefaac7044d9908c97bf445858c.tar.gz
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-omap2/sdram-nokia.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/sdram-nokia.c b/arch/arm/mach-omap2/sdram-nokia.c
index baf83ec..14caa22 100644
--- a/arch/arm/mach-omap2/sdram-nokia.c
+++ b/arch/arm/mach-omap2/sdram-nokia.c
@@ -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];
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