ARM: tegra: emc: Reduce DDR3 min rate to 25.5MHz
Daniel Solomon [Mon, 19 Mar 2012 18:45:03 +0000 (11:45 -0700)]
Reduce DDR3 min rate to 25.5MHz to save power.

Bug 947228

Signed-off-by: Daniel Solomon <daniels@nvidia.com>
(cherry picked from commit f09e23ac983a24d9ba03a11764b871b9d548f4dc)
Change-Id: I4cd19099943cfa06d7fe7cca308042c44e708748
Reviewed-on: http://git-master/r/93958
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Aleksandr Frid <afrid@nvidia.com>
Reviewed-by: Dan Willemsen <dwillemsen@nvidia.com>

arch/arm/mach-tegra/tegra3_emc.c

index 780c46b..dd229b8 100644 (file)
@@ -45,7 +45,7 @@ static bool emc_enable;
 #endif
 module_param(emc_enable, bool, 0644);
 
-#define EMC_MIN_RATE_DDR3              50000000
+#define EMC_MIN_RATE_DDR3              25500000
 #define EMC_STATUS_UPDATE_TIMEOUT      100
 #define TEGRA_EMC_TABLE_MAX_SIZE       16