ARM: k2g: Add ddr3 info

Add ddr3 related info

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

arch/arm/mach-keystone/ddr3.c

@@ -52,7 +52,8 @@ void ddr3_init_ddrphy(u32 base, struct ddr3_phy_config *phy_cfg)
 	__raw_writel(phy_cfg->dtpr2, base + KS2_DDRPHY_DTPR2_OFFSET);
 	__raw_writel(phy_cfg->mr0,   base + KS2_DDRPHY_MR0_OFFSET);
 	__raw_writel(phy_cfg->mr1,   base + KS2_DDRPHY_MR1_OFFSET);
-	__raw_writel(phy_cfg->mr2,   base + KS2_DDRPHY_MR2_OFFSET);
+	if (!cpu_is_k2g())
+		__raw_writel(phy_cfg->mr2,   base + KS2_DDRPHY_MR2_OFFSET);
 	__raw_writel(phy_cfg->dtcr,  base + KS2_DDRPHY_DTCR_OFFSET);
 	__raw_writel(phy_cfg->pgcr2, base + KS2_DDRPHY_PGCR2_OFFSET);
 
@@ -64,6 +65,15 @@ void ddr3_init_ddrphy(u32 base, struct ddr3_phy_config *phy_cfg)
 	while ((__raw_readl(base + KS2_DDRPHY_PGSR0_OFFSET) & 0x1) != 0x1)
 		;
 
+	/* Disable ECC for K2G */
+	if (cpu_is_k2g()) {
+		clrbits_le32(base + KS2_DDRPHY_DATX8_4_OFFSET, 0x1);
+		clrbits_le32(base + KS2_DDRPHY_DATX8_5_OFFSET, 0x1);
+		clrbits_le32(base + KS2_DDRPHY_DATX8_6_OFFSET, 0x1);
+		clrbits_le32(base + KS2_DDRPHY_DATX8_7_OFFSET, 0x1);
+		clrbits_le32(base + KS2_DDRPHY_DATX8_8_OFFSET, 0x1);
+	}
+
 	__raw_writel(phy_cfg->pir_v2, base + KS2_DDRPHY_PIR_OFFSET);
 	while ((__raw_readl(base + KS2_DDRPHY_PGSR0_OFFSET) & 0x1) != 0x1)
 		;

arch/arm/mach-keystone/include/mach/hardware.h

@@ -52,6 +52,10 @@ typedef volatile unsigned int   *dv_reg_p;
 #define KS2_DDRPHY_ZQ2CR1_OFFSET        0x1A4
 #define KS2_DDRPHY_ZQ3CR1_OFFSET        0x1B4
 
+#define KS2_DDRPHY_DATX8_4_OFFSET       0x2C0
+#define KS2_DDRPHY_DATX8_5_OFFSET       0x300
+#define KS2_DDRPHY_DATX8_6_OFFSET       0x340
+#define KS2_DDRPHY_DATX8_7_OFFSET       0x380
 #define KS2_DDRPHY_DATX8_8_OFFSET       0x3C0
 
 #define IODDRM_MASK                     0x00000180

board/ti/ks2_evm/Makefile

@@ -14,3 +14,4 @@ obj-$(CONFIG_K2E_EVM) += ddr3_k2e.o
 obj-$(CONFIG_K2L_EVM) += board_k2l.o
 obj-$(CONFIG_K2L_EVM) += ddr3_k2l.o
 obj-$(CONFIG_K2G_EVM) += board_k2g.o
+obj-$(CONFIG_K2G_EVM) += ddr3_k2g.o

board/ti/ks2_evm/board.c

@@ -43,7 +43,8 @@ int dram_init(void)
 	gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
 				    CONFIG_MAX_RAM_BANK_SIZE);
 	aemif_init(ARRAY_SIZE(aemif_configs), aemif_configs);
-	ddr3_init_ecc(KS2_DDR3A_EMIF_CTRL_BASE, ddr3_size);
+	if (ddr3_size)
+		ddr3_init_ecc(KS2_DDR3A_EMIF_CTRL_BASE, ddr3_size);
 	return 0;
 }
 

board/ti/ks2_evm/board_k2g.c

@@ -23,7 +23,7 @@ static struct pll_init_data main_pll_config = {MAIN_PLL, 100, 1, 4};
 static struct pll_init_data tetris_pll_config = {TETRIS_PLL, 100, 1, 4};
 static struct pll_init_data uart_pll_config = {UART_PLL, 64, 1, 4};
 static struct pll_init_data nss_pll_config = {NSS_PLL, 250, 3, 2};
-static struct pll_init_data ddr3_pll_config = {DDR3_PLL, 250, 3, 10};
+static struct pll_init_data ddr3_pll_config = {DDR3A_PLL, 250, 3, 10};
 
 struct pll_init_data *get_pll_init_data(int pll)
 {
@@ -34,7 +34,7 @@ struct pll_init_data *get_pll_init_data(int pll)
 		data = &main_pll_config;
 		break;
 	case TETRIS_PLL:
-		data = &tetris_pll_config[speed];
+		data = &tetris_pll_config;
 		break;
 	case NSS_PLL:
 		data = &nss_pll_config;
@@ -43,7 +43,7 @@ struct pll_init_data *get_pll_init_data(int pll)
 		data = &uart_pll_config;
 		break;
 	case DDR3_PLL:
-		data = &ddr_pll_config;
+		data = &ddr3_pll_config;
 		break;
 	default:
 		data = NULL;

board/ti/ks2_evm/ddr3_k2g.c

@@ -0,0 +1,64 @@
+/*
+ * K2G: DDR3 initialization
+ *
+ * (C) Copyright 2015
+ *     Texas Instruments Incorporated, <www.ti.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include "ddr3_cfg.h"
+#include <asm/arch/ddr3.h>
+
+struct ddr3_phy_config ddr3phy_800_2g = {
+	.pllcr          = 0x000DC000ul,
+	.pgcr1_mask     = (IODDRM_MASK | ZCKSEL_MASK),
+	.pgcr1_val      = ((1 << 2) | (1 << 7) | (1 << 23)),
+	.ptr0           = 0x42C21590ul,
+	.ptr1           = 0xD05612C0ul,
+	.ptr2           = 0,
+	.ptr3           = 0x06C30D40ul,
+	.ptr4           = 0x06413880ul,
+	.dcr_mask       = (PDQ_MASK | MPRDQ_MASK | BYTEMASK_MASK),
+	.dcr_val        = ((1 << 10)),
+	.dtpr0          = 0x550F6644ul,
+	.dtpr1          = 0x328341E0ul,
+	.dtpr2          = 0x50022A00ul,
+	.mr0            = 0x00001430ul,
+	.mr1            = 0x00000006ul,
+	.mr2            = 0x00000018ul,
+	.dtcr           = 0x710035C7ul,
+	.pgcr2          = 0x00F03D09ul,
+	.zq0cr1         = 0x0001005Dul,
+	.zq1cr1         = 0x0001005Bul,
+	.zq2cr1         = 0x0001005Bul,
+	.pir_v1         = 0x00000033ul,
+	.pir_v2         = 0x00000F81ul,
+};
+
+struct ddr3_emif_config ddr3_800_2g = {
+	.sdcfg          = 0x62005662ul,
+	.sdtim1         = 0x0A385033ul,
+	.sdtim2         = 0x00001CA5ul,
+	.sdtim3         = 0x21ADFF32ul,
+	.sdtim4         = 0x533F067Ful,
+	.zqcfg          = 0x70073200ul,
+	.sdrfc          = 0x00000C34ul,
+};
+
+u32 ddr3_init(void)
+{
+	/* Reset DDR3 PHY after PLL enabled */
+	ddr3_reset_ddrphy();
+
+	ddr3_init_ddrphy(KS2_DDR3A_DDRPHYC, &ddr3phy_800_2g);
+	ddr3_init_ddremif(KS2_DDR3A_EMIF_CTRL_BASE, &ddr3_800_2g);
+
+	return 0;
+}
+
+inline int ddr3_get_size(void)
+{
+	return 2;
+}