arm: am437x: Introduce new board cm-t43
Add initial support for CM-T43, an AM437x based SoM.
This support includes: serial, MMC/eMMC, NAND, USB, ETH, I2C, GPIO, DRAM
detection.
Cc: Tom Rini <trini@konsulko.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
diff --git a/board/compulab/cm_t43/board.c b/board/compulab/cm_t43/board.c
new file mode 100644
index 0000000..4272c45
--- /dev/null
+++ b/board/compulab/cm_t43/board.c
@@ -0,0 +1,272 @@
+/*
+ * Copyright (C) 2015 Compulab, Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <cpsw.h>
+#include <spl.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/ddr_defs.h>
+#include <asm/errno.h>
+#include <asm/gpio.h>
+#include <asm/emif.h>
+#include <power/pmic.h>
+#include <power/tps65218.h>
+#include "board.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
+
+#ifndef CONFIG_SKIP_LOWLEVEL_INIT
+
+const struct dpll_params dpll_mpu = { 800, 24, 1, -1, -1, -1, -1 };
+const struct dpll_params dpll_core = { 1000, 24, -1, -1, 10, 8, 4 };
+const struct dpll_params dpll_per = { 960, 24, 5, -1, -1, -1, -1 };
+const struct dpll_params dpll_ddr = { 400, 23, 1, -1, 1, -1, -1 };
+
+const struct ctrl_ioregs ioregs_ddr3 = {
+ .cm0ioctl = DDR3_ADDRCTRL_IOCTRL_VALUE,
+ .cm1ioctl = DDR3_ADDRCTRL_WD0_IOCTRL_VALUE,
+ .cm2ioctl = DDR3_ADDRCTRL_WD1_IOCTRL_VALUE,
+ .dt0ioctl = DDR3_DATA0_IOCTRL_VALUE,
+ .dt1ioctl = DDR3_DATA0_IOCTRL_VALUE,
+ .dt2ioctrl = DDR3_DATA0_IOCTRL_VALUE,
+ .dt3ioctrl = DDR3_DATA0_IOCTRL_VALUE,
+ .emif_sdram_config_ext = 0x0143,
+};
+
+/* EMIF DDR3 Configurations are different for production AM43X GP EVMs */
+struct emif_regs ddr3_emif_regs = {
+ .sdram_config = 0x638413B2,
+ .ref_ctrl = 0x00000C30,
+ .sdram_tim1 = 0xEAAAD4DB,
+ .sdram_tim2 = 0x266B7FDA,
+ .sdram_tim3 = 0x107F8678,
+ .read_idle_ctrl = 0x00050000,
+ .zq_config = 0x50074BE4,
+ .temp_alert_config = 0x0,
+ .emif_ddr_phy_ctlr_1 = 0x0E004008,
+ .emif_ddr_ext_phy_ctrl_1 = 0x08020080,
+ .emif_ddr_ext_phy_ctrl_2 = 0x00000066,
+ .emif_ddr_ext_phy_ctrl_3 = 0x00000091,
+ .emif_ddr_ext_phy_ctrl_4 = 0x000000B9,
+ .emif_ddr_ext_phy_ctrl_5 = 0x000000E6,
+ .emif_rd_wr_exec_thresh = 0x80000405,
+ .emif_prio_class_serv_map = 0x80000001,
+ .emif_connect_id_serv_1_map = 0x80000094,
+ .emif_connect_id_serv_2_map = 0x00000000,
+ .emif_cos_config = 0x000FFFFF
+};
+
+const u32 ext_phy_ctrl_const_base_ddr3[] = {
+ 0x00000000,
+ 0x00000044,
+ 0x00000044,
+ 0x00000046,
+ 0x00000046,
+ 0x00000000,
+ 0x00000059,
+ 0x00000077,
+ 0x00000093,
+ 0x000000A8,
+ 0x00000000,
+ 0x00000019,
+ 0x00000037,
+ 0x00000053,
+ 0x00000068,
+ 0x00000000,
+ 0x0,
+ 0x0,
+ 0x40000000,
+ 0x08102040
+};
+
+void emif_get_ext_phy_ctrl_const_regs(const u32 **regs, u32 *size)
+{
+ *regs = ext_phy_ctrl_const_base_ddr3;
+ *size = ARRAY_SIZE(ext_phy_ctrl_const_base_ddr3);
+}
+
+const struct dpll_params *get_dpll_ddr_params(void)
+{
+ return &dpll_ddr;
+}
+
+const struct dpll_params *get_dpll_mpu_params(void)
+{
+ return &dpll_mpu;
+}
+
+const struct dpll_params *get_dpll_core_params(void)
+{
+ return &dpll_core;
+}
+
+const struct dpll_params *get_dpll_per_params(void)
+{
+ return &dpll_per;
+}
+
+static void enable_vtt_regulator(void)
+{
+ u32 temp;
+
+ writel(GPIO_CTRL_ENABLEMODULE, AM33XX_GPIO5_BASE + OMAP_GPIO_CTRL);
+ writel(GPIO_SETDATAOUT(7), AM33XX_GPIO5_BASE + OMAP_GPIO_SETDATAOUT);
+ temp = readl(AM33XX_GPIO5_BASE + OMAP_GPIO_OE);
+ temp = temp & ~(GPIO_OE_ENABLE(7));
+ writel(temp, AM33XX_GPIO5_BASE + OMAP_GPIO_OE);
+}
+
+void sdram_init(void)
+{
+ unsigned long ram_size;
+
+ enable_vtt_regulator();
+ config_ddr(0, &ioregs_ddr3, NULL, NULL, &ddr3_emif_regs, 0);
+ ram_size = get_ram_size((long int *)CONFIG_SYS_SDRAM_BASE, 0x80000000);
+ if (ram_size == 0x80000000 ||
+ ram_size == 0x40000000 ||
+ ram_size == 0x20000000)
+ return;
+
+ ddr3_emif_regs.sdram_config = 0x638453B2;
+ config_ddr(0, &ioregs_ddr3, NULL, NULL, &ddr3_emif_regs, 0);
+ ram_size = get_ram_size((long int *)CONFIG_SYS_SDRAM_BASE, 0x80000000);
+ if (ram_size == 0x08000000)
+ return;
+
+ hang();
+}
+#endif
+
+/* setup board specific PMIC */
+int power_init_board(void)
+{
+ struct pmic *p;
+
+ power_tps65218_init(I2C_PMIC);
+ p = pmic_get("TPS65218_PMIC");
+ if (p && !pmic_probe(p))
+ puts("PMIC: TPS65218\n");
+
+ return 0;
+}
+
+int board_init(void)
+{
+ gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+ gpmc_init();
+ set_i2c_pin_mux();
+ i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
+ i2c_probe(TPS65218_CHIP_PM);
+
+ return 0;
+}
+
+#ifdef CONFIG_DRIVER_TI_CPSW
+
+static void cpsw_control(int enabled)
+{
+ return;
+}
+
+static struct cpsw_slave_data cpsw_slaves[] = {
+ {
+ .slave_reg_ofs = 0x208,
+ .sliver_reg_ofs = 0xd80,
+ .phy_addr = 0,
+ .phy_if = PHY_INTERFACE_MODE_RGMII,
+ },
+ {
+ .slave_reg_ofs = 0x308,
+ .sliver_reg_ofs = 0xdc0,
+ .phy_addr = 1,
+ .phy_if = PHY_INTERFACE_MODE_RGMII,
+ },
+};
+
+static struct cpsw_platform_data cpsw_data = {
+ .mdio_base = CPSW_MDIO_BASE,
+ .cpsw_base = CPSW_BASE,
+ .mdio_div = 0xff,
+ .channels = 8,
+ .cpdma_reg_ofs = 0x800,
+ .slaves = 2,
+ .slave_data = cpsw_slaves,
+ .ale_reg_ofs = 0xd00,
+ .ale_entries = 1024,
+ .host_port_reg_ofs = 0x108,
+ .hw_stats_reg_ofs = 0x900,
+ .bd_ram_ofs = 0x2000,
+ .mac_control = (1 << 5),
+ .control = cpsw_control,
+ .host_port_num = 0,
+ .version = CPSW_CTRL_VERSION_2,
+};
+
+#define GPIO_PHY1_RST 170
+#define GPIO_PHY2_RST 168
+
+int board_phy_config(struct phy_device *phydev)
+{
+ unsigned short val;
+
+ /* introduce tx clock delay */
+ phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
+ val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
+ val |= 0x0100;
+ phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val);
+
+ if (phydev->drv->config)
+ return phydev->drv->config(phydev);
+
+ return 0;
+}
+
+static void board_phy_init(void)
+{
+ set_mdio_pin_mux();
+ writel(0x40003, 0x44e10a74); /* Mux pin as clkout2 */
+ writel(0x10006, 0x44df4108); /* Select EXTDEV as clock source */
+ writel(0x4, 0x44df2e60); /* Set EXTDEV as MNbypass */
+
+ /* For revision A */
+ writel(0x2000009, 0x44df2e6c);
+ writel(0x38a, 0x44df2e70);
+
+ mdelay(10);
+
+ gpio_request(GPIO_PHY1_RST, "phy1_rst");
+ gpio_request(GPIO_PHY2_RST, "phy2_rst");
+ gpio_direction_output(GPIO_PHY1_RST, 0);
+ gpio_direction_output(GPIO_PHY2_RST, 0);
+ mdelay(2);
+
+ gpio_set_value(GPIO_PHY1_RST, 1);
+ gpio_set_value(GPIO_PHY2_RST, 1);
+ mdelay(2);
+}
+
+int board_eth_init(bd_t *bis)
+{
+ int rv;
+
+ set_rgmii_pin_mux();
+ writel(RGMII_MODE_ENABLE | RGMII_INT_DELAY, &cdev->miisel);
+ board_phy_init();
+
+ rv = cpsw_register(&cpsw_data);
+ if (rv < 0)
+ printf("Error %d registering CPSW switch\n", rv);
+
+ return rv;
+}
+#endif