board: k2e-evm: add board support

This patch adds Keystone2 k2e_evm evaluation board support.

Signed-off-by: Hao Zhang <hzhang@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>

5 files changed, 139 insertions, 0 deletions

diff --git a/board/ti/ks2_evm/Makefile b/board/ti/ks2_evm/Makefile
index 774a7d5..00f1164 100644
--- a/board/ti/ks2_evm/Makefile
+++ b/board/ti/ks2_evm/Makefile
@@ -9,3 +9,5 @@ obj-y += board.o
 obj-y += ddr3_cfg.o
 obj-$(CONFIG_K2HK_EVM) += board_k2hk.o
 obj-$(CONFIG_K2HK_EVM) += ddr3_k2hk.o
+obj-$(CONFIG_K2E_EVM) += board_k2e.o
+obj-$(CONFIG_K2E_EVM) += ddr3_k2e.o
diff --git a/board/ti/ks2_evm/board_k2e.c b/board/ti/ks2_evm/board_k2e.c
new file mode 100644
index 0000000..d2499b7
--- /dev/null
+++ b/board/ti/ks2_evm/board_k2e.c
@@ -0,0 +1,39 @@
+/*
+ * K2E EVM : Board initialization
+ *
+ * (C) Copyright 2014
+ *     Texas Instruments Incorporated, <www.ti.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/ddr3.h>
+#include <asm/arch/hardware.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+unsigned int external_clk[ext_clk_count] = {
+	[sys_clk]	= 100000000,
+	[alt_core_clk]	= 100000000,
+	[pa_clk]	= 100000000,
+	[ddr3_clk]	= 100000000,
+	[mcm_clk]	= 312500000,
+	[pcie_clk]	= 100000000,
+	[sgmii_clk]	= 156250000,
+	[xgmii_clk]	= 156250000,
+	[usb_clk]	= 100000000,
+};
+
+static struct pll_init_data pll_config[] = {
+	CORE_PLL_1200,
+	PASS_PLL_1000,
+};
+
+#if defined(CONFIG_BOARD_EARLY_INIT_F)
+int board_early_init_f(void)
+{
+	init_plls(ARRAY_SIZE(pll_config), pll_config);
+	return 0;
+}
+#endif
diff --git a/board/ti/ks2_evm/ddr3_cfg.c b/board/ti/ks2_evm/ddr3_cfg.c
index 6e55af9..f7da9f2 100644
--- a/board/ti/ks2_evm/ddr3_cfg.c
+++ b/board/ti/ks2_evm/ddr3_cfg.c
@@ -93,6 +93,46 @@ struct ddr3_emif_config ddr3_1333_2g = {
 };
 #endif
 
+#ifdef CONFIG_K2E_EVM
+/* DDR3 PHY configuration data with 1600M rate, and 4GB size  */
+struct ddr3_phy_config ddr3phy_1600_4g = {
+	.pllcr          = 0x0001C000ul,
+	.pgcr1_mask     = (IODDRM_MASK | ZCKSEL_MASK),
+	.pgcr1_val      = ((1 << 2) | (1 << 7) | (1 << 23)),
+	.ptr0           = 0x42C21590ul,
+	.ptr1           = 0xD05612C0ul,
+	.ptr2           = 0, /* not set in gel */
+	.ptr3           = 0x08861A80ul,
+	.ptr4           = 0x0C827100ul,
+	.dcr_mask       = (PDQ_MASK | MPRDQ_MASK | BYTEMASK_MASK),
+	.dcr_val        = ((1 << 10)),
+	.dtpr0          = 0x9D9CBB66ul,
+	.dtpr1          = 0x12840300ul,
+	.dtpr2          = 0x5002D200ul,
+	.mr0            = 0x00001C70ul,
+	.mr1            = 0x00000006ul,
+	.mr2            = 0x00000018ul,
+	.dtcr           = 0x710035C7ul,
+	.pgcr2          = 0x00F07A12ul,
+	.zq0cr1         = 0x0001005Dul,
+	.zq1cr1         = 0x0001005Bul,
+	.zq2cr1         = 0x0001005Bul,
+	.pir_v1         = 0x00000033ul,
+	.pir_v2         = 0x0000FF81ul,
+};
+
+/* DDR3 EMIF configuration data with 1600M rate, and 4GB size  */
+struct ddr3_emif_config ddr3_1600_4g = {
+	.sdcfg          = 0x6200CE62ul,
+	.sdtim1         = 0x166C9855ul,
+	.sdtim2         = 0x00001D4Aul,
+	.sdtim3         = 0x421DFF53ul,
+	.sdtim4         = 0x543F07FFul,
+	.zqcfg          = 0x70073200ul,
+	.sdrfc          = 0x00001869ul,
+};
+#endif
+
 int ddr3_get_dimm_params(char *dimm_name)
 {
 	int ret;
diff --git a/board/ti/ks2_evm/ddr3_cfg.h b/board/ti/ks2_evm/ddr3_cfg.h
index d14bac3..15fcf52 100644
--- a/board/ti/ks2_evm/ddr3_cfg.h
+++ b/board/ti/ks2_evm/ddr3_cfg.h
@@ -16,6 +16,9 @@ extern struct ddr3_emif_config ddr3_1600_8g;
 extern struct ddr3_phy_config ddr3phy_1333_2g;
 extern struct ddr3_emif_config ddr3_1333_2g;
 
+extern struct ddr3_phy_config ddr3phy_1600_4g;
+extern struct ddr3_emif_config ddr3_1600_4g;
+
 int ddr3_get_dimm_params(char *dimm_name);
 
 #endif /* __DDR3_CFG_H */
diff --git a/board/ti/ks2_evm/ddr3_k2e.c b/board/ti/ks2_evm/ddr3_k2e.c
new file mode 100644
index 0000000..40fd966
--- /dev/null
+++ b/board/ti/ks2_evm/ddr3_k2e.c
@@ -0,0 +1,55 @@
+/*
+ * Keystone2: DDR3 initialization
+ *
+ * (C) Copyright 2014
+ *     Texas Instruments Incorporated, <www.ti.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include "ddr3_cfg.h"
+#include <asm/arch/ddr3.h>
+
+static int ddr3_size;
+static struct pll_init_data ddr3_400 = DDR3_PLL_400;
+
+void ddr3_init(void)
+{
+	char dimm_name[32];
+
+	if (~(readl(KS2_PLL_CNTRL_BASE + KS2_RSTCTRL_RSTYPE) & 0x1))
+		init_pll(&ddr3_400);
+
+	ddr3_get_dimm_params(dimm_name);
+
+	printf("Detected SO-DIMM [%s]\n", dimm_name);
+
+	/* Reset DDR3 PHY after PLL enabled */
+	ddr3_reset_ddrphy();
+
+	if (!strcmp(dimm_name, "18KSF1G72HZ-1G6E2 ")) {
+		/* 8G SO-DIMM */
+		ddr3_size = 8;
+		printf("DRAM: 8 GiB\n");
+		ddr3phy_1600_8g.zq0cr1 |= 0x10000;
+		ddr3phy_1600_8g.zq1cr1 |= 0x10000;
+		ddr3phy_1600_8g.zq2cr1 |= 0x10000;
+		ddr3_init_ddrphy(KS2_DDR3A_DDRPHYC, &ddr3phy_1600_8g);
+		ddr3_init_ddremif(KS2_DDR3A_EMIF_CTRL_BASE, &ddr3_1600_8g);
+	} else if (!strcmp(dimm_name, "18KSF51272HZ-1G6K2")) {
+		/* 4G SO-DIMM */
+		ddr3_size = 4;
+		printf("DRAM: 4 GiB\n");
+		ddr3_init_ddrphy(KS2_DDR3A_DDRPHYC, &ddr3phy_1600_4g);
+		ddr3_init_ddremif(KS2_DDR3A_EMIF_CTRL_BASE, &ddr3_1600_4g);
+	}
+}
+
+/**
+ * ddr3_get_size - return ddr3 size in GiB
+ */
+int ddr3_get_size(void)
+{
+	return ddr3_size;
+}