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-rw-r--r--arch/arm/boards/beaglebone/lowlevel.c2
-rw-r--r--arch/arm/boards/phytec-som-am335x/ram-timings.h11
-rw-r--r--arch/arm/mach-omap/am33xx_generic.c3
-rw-r--r--arch/arm/mach-omap/include/mach/am33xx-silicon.h2
4 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/boards/beaglebone/lowlevel.c b/arch/arm/boards/beaglebone/lowlevel.c
index 100f64fdd9..a56b4b6240 100644
--- a/arch/arm/boards/beaglebone/lowlevel.c
+++ b/arch/arm/boards/beaglebone/lowlevel.c
@@ -41,6 +41,7 @@ static const struct am33xx_emif_regs ddr2_regs = {
.emif_tim1 = 0x0666B3C9,
.emif_tim2 = 0x243631CA,
.emif_tim3 = 0x0000033F,
+ .ocp_config = 0x00141414,
.sdram_config = 0x41805332,
.sdram_config2 = 0x41805332,
.sdram_ref_ctrl = 0x0000081A,
@@ -97,6 +98,7 @@ static const struct am33xx_emif_regs ddr3_regs = {
.emif_tim1 = 0x0AAAD4DB,
.emif_tim2 = 0x266B7FDA,
.emif_tim3 = 0x501F867F,
+ .ocp_config = 0x00141414,
.zq_config = 0x50074BE4,
.sdram_config = 0x61C05332,
.sdram_config2 = 0x0,
diff --git a/arch/arm/boards/phytec-som-am335x/ram-timings.h b/arch/arm/boards/phytec-som-am335x/ram-timings.h
index 9576d265e5..4ea654db12 100644
--- a/arch/arm/boards/phytec-som-am335x/ram-timings.h
+++ b/arch/arm/boards/phytec-som-am335x/ram-timings.h
@@ -45,6 +45,7 @@ struct am335x_sdram_timings physom_timings[] = {
.emif_tim1 = 0x0AAAD4DB,
.emif_tim2 = 0x26437FDA,
.emif_tim3 = 0x501F83FF,
+ .ocp_config = 0x003d3d3d,
.sdram_config = 0x61C052B2,
.zq_config = 0x50074BE4,
.sdram_ref_ctrl = 0x00000C30,
@@ -66,6 +67,7 @@ struct am335x_sdram_timings physom_timings[] = {
.emif_tim1 = 0x0AAAE4DB,
.emif_tim2 = 0x266B7FDA,
.emif_tim3 = 0x501F867F,
+ .ocp_config = 0x003d3d3d,
.sdram_config = 0x61C05332,
.zq_config = 0x50074BE4,
.sdram_ref_ctrl = 0x00000C30,
@@ -87,6 +89,7 @@ struct am335x_sdram_timings physom_timings[] = {
.emif_tim1 = 0x0AAAD4DB,
.emif_tim2 = 0x26437FDA,
.emif_tim3 = 0x501F83FF,
+ .ocp_config = 0x003d3d3d,
.sdram_config = 0x61C052B2,
.zq_config = 0x50074BE4,
.sdram_ref_ctrl = 0x00000C30,
@@ -106,6 +109,7 @@ struct am335x_sdram_timings physom_timings[] = {
.emif_tim1 = 0x0AAAE4DB,
.emif_tim2 = 0x262F7FDA,
.emif_tim3 = 0x501F82BF,
+ .ocp_config = 0x003d3d3d,
.sdram_config = 0x61C05232,
.zq_config = 0x50074BE4,
.sdram_ref_ctrl = 0x00000C30,
@@ -125,6 +129,7 @@ struct am335x_sdram_timings physom_timings[] = {
.emif_tim1 = 0x0AAAE4DB,
.emif_tim2 = 0x266B7FDA,
.emif_tim3 = 0x501F867F,
+ .ocp_config = 0x003d3d3d,
.sdram_config = 0x61C05332,
.zq_config = 0x50074BE4,
.sdram_ref_ctrl = 0x00000C30
@@ -144,6 +149,7 @@ struct am335x_sdram_timings physom_timings[] = {
.emif_tim1 = 0x0AAAE4DB,
.emif_tim2 = 0x266B7FDA,
.emif_tim3 = 0x501F867F,
+ .ocp_config = 0x003d3d3d,
.sdram_config = 0x61C053B2,
.zq_config = 0x50074BE4,
.sdram_ref_ctrl = 0x00000C30
@@ -163,6 +169,7 @@ struct am335x_sdram_timings physom_timings[] = {
.emif_tim1 = 0x0AAAE4DB,
.emif_tim2 = 0x268F7FDA,
.emif_tim3 = 0x501F88BF,
+ .ocp_config = 0x003d3d3d,
.sdram_config = 0x61C053B2,
.zq_config = 0x50074BE4,
.sdram_ref_ctrl = 0x00000C30
@@ -182,6 +189,7 @@ struct am335x_sdram_timings physom_timings[] = {
.emif_tim1 = 0x0AAAD4DB,
.emif_tim2 = 0x26437FDA,
.emif_tim3 = 0x501F83FF,
+ .ocp_config = 0x003d3d3d,
.sdram_config = 0x61C052B2,
.zq_config = 0x50074BE4,
.sdram_ref_ctrl = 0x00000C30,
@@ -203,6 +211,7 @@ struct am335x_sdram_timings physom_timings[] = {
.emif_tim1 = 0x0AAAD4DB,
.emif_tim2 = 0x266B7FDA,
.emif_tim3 = 0x501F867F,
+ .ocp_config = 0x003d3d3d,
.sdram_config = 0x61C05332,
.zq_config = 0x50074BE4,
.sdram_ref_ctrl = 0x00000C30,
@@ -222,6 +231,7 @@ struct am335x_sdram_timings physom_timings[] = {
.emif_tim1 = 0x0AAAD4DB,
.emif_tim2 = 0x26437FDA,
.emif_tim3 = 0x501F83FF,
+ .ocp_config = 0x003d3d3d,
.sdram_config = 0x61C052B2,
.zq_config = 0x50074BE4,
.sdram_ref_ctrl = 0x00000C30,
@@ -241,6 +251,7 @@ struct am335x_sdram_timings physom_timings[] = {
.emif_tim1 = 0x0AAAD4DB,
.emif_tim2 = 0x268F7FDA,
.emif_tim3 = 0x501F88BF,
+ .ocp_config = 0x003d3d3d,
.sdram_config = 0x61C053B2,
.zq_config = 0x50074BE4,
.sdram_ref_ctrl = 0x00000C30,
diff --git a/arch/arm/mach-omap/am33xx_generic.c b/arch/arm/mach-omap/am33xx_generic.c
index 5eead5c589..513746248e 100644
--- a/arch/arm/mach-omap/am33xx_generic.c
+++ b/arch/arm/mach-omap/am33xx_generic.c
@@ -341,6 +341,9 @@ void am33xx_config_sdram(const struct am33xx_emif_regs *regs)
writel(regs->emif_tim3, AM33XX_EMIF4_0_REG(SDRAM_TIM_3));
writel(regs->emif_tim3, AM33XX_EMIF4_0_REG(SDRAM_TIM_3_SHADOW));
+ if (regs->ocp_config)
+ writel(regs->ocp_config, AM33XX_EMIF4_0_REG(OCP_CONFIG));
+
if (regs->zq_config) {
/*
* A value of 0x2800 for the REF CTRL will give us
diff --git a/arch/arm/mach-omap/include/mach/am33xx-silicon.h b/arch/arm/mach-omap/include/mach/am33xx-silicon.h
index 10595d5ee7..0729369255 100644
--- a/arch/arm/mach-omap/include/mach/am33xx-silicon.h
+++ b/arch/arm/mach-omap/include/mach/am33xx-silicon.h
@@ -114,6 +114,7 @@
#define EMIF4_SDRAM_TIM_3_SHADOW 0x2C
#define EMIF0_SDRAM_MGMT_CTRL 0x38
#define EMIF0_SDRAM_MGMT_CTRL_SHD 0x3C
+#define EMIF4_OCP_CONFIG 0x54
#define EMIF4_ZQ_CONFIG 0xC8
#define EMIF4_DDR_PHY_CTRL_1 0xE4
#define EMIF4_DDR_PHY_CTRL_1_SHADOW 0xE8
@@ -217,6 +218,7 @@ struct am33xx_emif_regs {
u32 emif_tim1;
u32 emif_tim2;
u32 emif_tim3;
+ u32 ocp_config;
u32 sdram_config;
u32 sdram_config2;
u32 zq_config;
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-20 04:09:41 +0000