[PATCH 2/3] OMAP4460: ram init changes

[Jan Weitzel]

configure  Memory Adapter for 4460

Signed-off-by: Jan Weitzel <j.weitzel at phytec.de>
---
 arch/arm/mach-omap/include/mach/omap4-silicon.h |    4 ++++
 arch/arm/mach-omap/omap4_generic.c              |   21 +++++++++++++++++++--
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap/include/mach/omap4-silicon.h b/arch/arm/mach-omap/include/mach/omap4-silicon.h
index d5517c5..4082bac 100644
--- a/arch/arm/mach-omap/include/mach/omap4-silicon.h
+++ b/arch/arm/mach-omap/include/mach/omap4-silicon.h
@@ -101,6 +101,10 @@
 #define DMM_LISA_MAP_SYS_SIZE_MASK	(7 << 20)
 #define DMM_LISA_MAP_SYS_SIZE_SHIFT	20
 #define DMM_LISA_MAP_SYS_ADDR_MASK	(0xFF << 24)
+
+/* Memory Adapter (4460 onwards) */
+#define OMAP44XX_MA_BASE		0x482AF000
+
 /*
  * Hardware Register Details
  */
diff --git a/arch/arm/mach-omap/omap4_generic.c b/arch/arm/mach-omap/omap4_generic.c
index 07aa2b4..a368759 100644
--- a/arch/arm/mach-omap/omap4_generic.c
+++ b/arch/arm/mach-omap/omap4_generic.c
@@ -29,6 +29,10 @@
 #define OMAP4460_CONTROL_ID_CODE_ES1_0  0x0B94E02F
 #define OMAP4460_CONTROL_ID_CODE_ES1_1  0x2B94E02F
 
+/* EMIF_L3_CONFIG register value */
+#define EMIF_L3_CONFIG_VAL_SYS_10_LL_0		0x0A0000FF
+#define EMIF_L3_CONFIG_VAL_SYS_10_MPU_3_LL_0	0x0A300000
+
 void __noreturn reset_cpu(unsigned long addr)
 {
 	writel(PRM_RSTCTRL_RESET, PRM_RSTCTRL);
@@ -270,8 +274,7 @@ static void reset_phy(unsigned int base)
 void omap4_ddr_init(const struct ddr_regs *ddr_regs,
 		const struct dpll_param *core)
 {
-	unsigned int rev;
-	rev = omap4_revision();
+	unsigned int rev = omap4_revision();
 
 	if (rev == OMAP4430_ES2_0) {
 		writel(0x9e9e9e9e, 0x4A100638);
@@ -294,6 +297,13 @@ void omap4_ddr_init(const struct ddr_regs *ddr_regs,
 	*(volatile int*)(OMAP44XX_DMM_BASE + DMM_LISA_MAP_2) = 0x00000000;
 	*(volatile int*)(OMAP44XX_DMM_BASE + DMM_LISA_MAP_3) = 0xFF020100;
 
+	if (rev >= OMAP4460_ES1_0) {
+		writel(0x80640300, OMAP44XX_MA_BASE + DMM_LISA_MAP_0);
+
+		*(volatile int*)(OMAP44XX_MA_BASE + DMM_LISA_MAP_2) = 0x00000000;
+		*(volatile int*)(OMAP44XX_MA_BASE + DMM_LISA_MAP_3) = 0xFF020100;
+	}
+
 	/* DDR needs to be initialised @ 19.2 MHz
 	 * So put core DPLL in bypass mode
 	 * Configure the Core DPLL but don't lock it
@@ -336,6 +346,13 @@ void omap4_ddr_init(const struct ddr_regs *ddr_regs,
 	*(volatile int*)(OMAP44XX_EMIF1_BASE + EMIF_PWR_MGMT_CTRL) = 0x80000000;
 	*(volatile int*)(OMAP44XX_EMIF2_BASE + EMIF_PWR_MGMT_CTRL) = 0x80000000;
 
+	if (rev >= OMAP4460_ES1_0) {
+		writel(EMIF_L3_CONFIG_VAL_SYS_10_MPU_3_LL_0,
+				OMAP44XX_EMIF1_BASE + EMIF_L3_CONFIG);
+		writel(EMIF_L3_CONFIG_VAL_SYS_10_MPU_3_LL_0,
+				OMAP44XX_EMIF2_BASE + EMIF_L3_CONFIG);
+	}
+
 	/*
 	 * DMM : DMM_LISA_MAP_0(Section_0)
 	 * [31:24] SYS_ADDR 		0x80
-- 
1.7.0.4