--- /dev/null
+/*
+ * Copyright (C) Stefano Babic <sbabic@denx.de>
+ *
+ * Based on other i.MX6 boards
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/errno.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/mxc_i2c.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/boot_mode.h>
+#include <asm/imx-common/video.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <asm/arch/mxc_hdmi.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <i2c.h>
+#include <power/pmic.h>
+#include <power/pfuze100_pmic.h>
+#include <asm/arch/mx6-ddr.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define OPEN_PAD_CTRL (PAD_CTL_ODE | PAD_CTL_DSE_DISABLE | (0 << 12))
+
+#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
+ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
+ PAD_CTL_SRE_FAST | PAD_CTL_HYS)
+
+#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
+ PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
+ PAD_CTL_SRE_FAST | PAD_CTL_HYS)
+
+#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
+ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+
+#define ENET_PAD_CTRL_PD (PAD_CTL_PUS_100K_DOWN | \
+ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+
+#define ENET_PAD_CTRL_CLK ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \
+ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
+
+#define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
+
+#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
+ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
+ PAD_CTL_ODE | PAD_CTL_SRE_FAST)
+
+#define I2C_PMIC 1
+
+#define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
+
+#define ETH_PHY_RESET IMX_GPIO_NR(2, 4)
+
+int dram_init(void)
+{
+ gd->ram_size = imx_ddr_size();
+
+ return 0;
+}
+
+iomux_v3_cfg_t const uart2_pads[] = {
+ MX6_PAD_SD3_DAT5__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+ MX6_PAD_SD3_DAT4__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static void setup_iomux_uart(void)
+{
+ imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
+}
+
+#ifdef CONFIG_TARGET_ZC5202
+iomux_v3_cfg_t const enet_pads[] = {
+ MX6_PAD_GPIO_18__ENET_RX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET_RXD0__ENET_RX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET_RXD1__ENET_RX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_KEY_COL2__ENET_RX_DATA2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_KEY_COL0__ENET_RX_DATA3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET_CRS_DV__ENET_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK),
+ MX6_PAD_ENET_TXD0__ENET_TX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET_TXD1__ENET_TX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_GPIO_19__ENET_TX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_KEY_ROW2__ENET_TX_DATA2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_KEY_ROW0__ENET_TX_DATA3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET_TX_EN__ENET_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET_RX_ER__ENET_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
+ /* Switch Reset */
+ MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
+ /* Switch Interrupt */
+ MX6_PAD_NANDF_D5__GPIO2_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* use CRS and COL pads as GPIOs */
+ MX6_PAD_KEY_COL3__GPIO4_IO12 | MUX_PAD_CTRL(OPEN_PAD_CTRL),
+ MX6_PAD_KEY_ROW1__GPIO4_IO09 | MUX_PAD_CTRL(OPEN_PAD_CTRL),
+
+};
+
+#define BOARD_NAME "EL6x-ZC5202"
+#else
+iomux_v3_cfg_t const enet_pads[] = {
+ MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK),
+ MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ MX6_PAD_NANDF_D5__GPIO2_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+#define BOARD_NAME "EL6x-ZC5601"
+#endif
+
+static void setup_iomux_enet(void)
+{
+ imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
+
+#ifdef CONFIG_TARGET_ZC5202
+ /* set CRS and COL to input */
+ gpio_direction_input(IMX_GPIO_NR(4, 9));
+ gpio_direction_input(IMX_GPIO_NR(4, 12));
+
+ /* Reset Switch */
+ gpio_direction_output(ETH_PHY_RESET , 0);
+ mdelay(2);
+ gpio_set_value(ETH_PHY_RESET, 1);
+#endif
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+ if (phydev->drv->config)
+ phydev->drv->config(phydev);
+
+ return 0;
+}
+
+#ifdef CONFIG_MXC_SPI
+#ifdef CONFIG_TARGET_ZC5202
+iomux_v3_cfg_t const ecspi1_pads[] = {
+ MX6_PAD_DISP0_DAT20__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_DISP0_DAT21__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_DISP0_DAT22__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_DISP0_DAT23__GPIO5_IO17 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ MX6_PAD_DISP0_DAT15__GPIO5_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+iomux_v3_cfg_t const ecspi3_pads[] = {
+ MX6_PAD_DISP0_DAT0__ECSPI3_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_DISP0_DAT2__ECSPI3_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_DISP0_DAT1__ECSPI3_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_DISP0_DAT7__GPIO4_IO28 | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_DISP0_DAT8__GPIO4_IO29 | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_DISP0_DAT9__GPIO4_IO30 | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_DISP0_DAT10__GPIO4_IO31 | MUX_PAD_CTRL(SPI_PAD_CTRL),
+};
+#endif
+
+iomux_v3_cfg_t const ecspi4_pads[] = {
+ MX6_PAD_EIM_D21__ECSPI4_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_EIM_D28__ECSPI4_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_EIM_D22__ECSPI4_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_EIM_D20__GPIO3_IO20 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+ return (bus == CONFIG_SF_DEFAULT_BUS && cs == CONFIG_SF_DEFAULT_CS)
+ ? (IMX_GPIO_NR(3, 20)) : -1;
+}
+
+static void setup_spi(void)
+{
+#ifdef CONFIG_TARGET_ZC5202
+ gpio_request(IMX_GPIO_NR(5, 17), "spi_cs0");
+ gpio_request(IMX_GPIO_NR(5, 9), "spi_cs1");
+ gpio_direction_output(IMX_GPIO_NR(5, 17), 1);
+ gpio_direction_output(IMX_GPIO_NR(5, 9), 1);
+ imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
+#endif
+
+ gpio_request(IMX_GPIO_NR(3, 20), "spi4_cs0");
+ gpio_direction_output(IMX_GPIO_NR(3, 20), 1);
+ imx_iomux_v3_setup_multiple_pads(ecspi4_pads, ARRAY_SIZE(ecspi4_pads));
+
+ enable_spi_clk(true, 3);
+}
+#endif
+
+static struct i2c_pads_info i2c_pad_info1 = {
+ .scl = {
+ .i2c_mode = MX6_PAD_EIM_EB2__I2C2_SCL | I2C_PAD,
+ .gpio_mode = MX6_PAD_EIM_EB2__GPIO2_IO30 | I2C_PAD,
+ .gp = IMX_GPIO_NR(2, 30)
+ },
+ .sda = {
+ .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | I2C_PAD,
+ .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | I2C_PAD,
+ .gp = IMX_GPIO_NR(4, 13)
+ }
+};
+
+static struct i2c_pads_info i2c_pad_info2 = {
+ .scl = {
+ .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | I2C_PAD,
+ .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | I2C_PAD,
+ .gp = IMX_GPIO_NR(1, 5)
+ },
+ .sda = {
+ .i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | I2C_PAD,
+ .gpio_mode = MX6_PAD_GPIO_16__GPIO7_IO11 | I2C_PAD,
+ .gp = IMX_GPIO_NR(7, 11)
+ }
+};
+
+iomux_v3_cfg_t const usdhc2_pads[] = {
+ MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_GPIO_4__SD2_CD_B | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
+};
+
+iomux_v3_cfg_t const usdhc4_pads[] = {
+ MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+#ifdef CONFIG_FSL_ESDHC
+struct fsl_esdhc_cfg usdhc_cfg[2] = {
+ {USDHC2_BASE_ADDR},
+ {USDHC4_BASE_ADDR},
+};
+
+#define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4)
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+ struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+ int ret = 0;
+
+ switch (cfg->esdhc_base) {
+ case USDHC2_BASE_ADDR:
+ ret = !gpio_get_value(USDHC2_CD_GPIO);
+ break;
+ case USDHC4_BASE_ADDR:
+ ret = 1; /* eMMC/uSDHC4 is always present */
+ break;
+ }
+
+ return ret;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+#ifndef CONFIG_SPL_BUILD
+ int ret;
+ int i;
+
+ /*
+ * According to the board_mmc_init() the following map is done:
+ * (U-boot device node) (Physical Port)
+ * mmc0 SD2
+ * mmc1 SD3
+ * mmc2 eMMC
+ */
+ for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
+ switch (i) {
+ case 0:
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
+ gpio_direction_input(USDHC2_CD_GPIO);
+ usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+ break;
+ case 1:
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
+ usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
+ break;
+ default:
+ printf("Warning: you configured more USDHC controllers"
+ "(%d) then supported by the board (%d)\n",
+ i + 1, CONFIG_SYS_FSL_USDHC_NUM);
+ return -EINVAL;
+ }
+
+ ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+#else
+ struct src *psrc = (struct src *)SRC_BASE_ADDR;
+ unsigned reg = readl(&psrc->sbmr1) >> 11;
+
+ /*
+ * Upon reading BOOT_CFG register the following map is done:
+ * Bit 11 and 12 of BOOT_CFG register can determine the current
+ * mmc port
+ * 0x1 SD1
+ * 0x2 SD2
+ * 0x3 SD4
+ */
+
+ switch (reg & 0x3) {
+ case 0x1:
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
+ usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
+ usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+ gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
+ break;
+ case 0x3:
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
+ usdhc_cfg[0].esdhc_base = USDHC4_BASE_ADDR;
+ usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
+ gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
+ break;
+ }
+
+ return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
+#endif
+
+}
+#endif
+
+
+/*
+ * Do not overwrite the console
+ * Use always serial for U-Boot console
+ */
+int overwrite_console(void)
+{
+ return 1;
+}
+
+int board_eth_init(bd_t *bis)
+{
+ setup_iomux_enet();
+ enable_enet_clk(1);
+
+ return cpu_eth_init(bis);
+}
+
+int board_early_init_f(void)
+{
+
+ setup_iomux_uart();
+ setup_spi();
+
+ return 0;
+}
+
+int board_init(void)
+{
+ /* address of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+ setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+ setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
+
+ return 0;
+}
+
+int power_init_board(void)
+{
+ struct pmic *p;
+ int ret;
+ unsigned int reg;
+
+ ret = power_pfuze100_init(I2C_PMIC);
+ if (ret)
+ return ret;
+
+ p = pmic_get("PFUZE100");
+ ret = pmic_probe(p);
+ if (ret)
+ return ret;
+
+ pmic_reg_read(p, PFUZE100_DEVICEID, ®);
+ printf("PMIC: PFUZE100 ID=0x%02x\n", reg);
+
+ /* Increase VGEN3 from 2.5 to 2.8V */
+ pmic_reg_read(p, PFUZE100_VGEN3VOL, ®);
+ reg &= ~LDO_VOL_MASK;
+ reg |= LDOB_2_80V;
+ pmic_reg_write(p, PFUZE100_VGEN3VOL, reg);
+
+ /* Increase VGEN5 from 2.8 to 3V */
+ pmic_reg_read(p, PFUZE100_VGEN5VOL, ®);
+ reg &= ~LDO_VOL_MASK;
+ reg |= LDOB_3_00V;
+ pmic_reg_write(p, PFUZE100_VGEN5VOL, reg);
+
+ /* Set SW1AB stanby volage to 0.975V */
+ pmic_reg_read(p, PFUZE100_SW1ABSTBY, ®);
+ reg &= ~SW1x_STBY_MASK;
+ reg |= SW1x_0_975V;
+ pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg);
+
+ /* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
+ pmic_reg_read(p, PFUZE100_SW1ABCONF, ®);
+ reg &= ~SW1xCONF_DVSSPEED_MASK;
+ reg |= SW1xCONF_DVSSPEED_4US;
+ pmic_reg_write(p, PFUZE100_SW1ABCONF, reg);
+
+ /* Set SW1C standby voltage to 0.975V */
+ pmic_reg_read(p, PFUZE100_SW1CSTBY, ®);
+ reg &= ~SW1x_STBY_MASK;
+ reg |= SW1x_0_975V;
+ pmic_reg_write(p, PFUZE100_SW1CSTBY, reg);
+
+ /* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */
+ pmic_reg_read(p, PFUZE100_SW1CCONF, ®);
+ reg &= ~SW1xCONF_DVSSPEED_MASK;
+ reg |= SW1xCONF_DVSSPEED_4US;
+ pmic_reg_write(p, PFUZE100_SW1CCONF, reg);
+
+ return 0;
+}
+
+#ifdef CONFIG_CMD_BMODE
+static const struct boot_mode board_boot_modes[] = {
+ /* 4 bit bus width */
+ {"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
+ /* 8 bit bus width */
+ {"emmc", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
+ {NULL, 0},
+};
+#endif
+
+int board_late_init(void)
+{
+#ifdef CONFIG_CMD_BMODE
+ add_board_boot_modes(board_boot_modes);
+#endif
+
+ setenv("board_name", BOARD_NAME);
+ return 0;
+}
+
+int checkboard(void)
+{
+ puts("Board: ");
+ puts(BOARD_NAME "\n");
+
+ return 0;
+}
+
+#ifdef CONFIG_SPL_BUILD
+#include <spl.h>
+#include <libfdt.h>
+
+const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
+ .dram_sdclk_0 = 0x00020030,
+ .dram_sdclk_1 = 0x00020030,
+ .dram_cas = 0x00020030,
+ .dram_ras = 0x00020030,
+ .dram_reset = 0x00020030,
+ .dram_sdcke0 = 0x00003000,
+ .dram_sdcke1 = 0x00003000,
+ .dram_sdba2 = 0x00000000,
+ .dram_sdodt0 = 0x00003030,
+ .dram_sdodt1 = 0x00003030,
+ .dram_sdqs0 = 0x00000030,
+ .dram_sdqs1 = 0x00000030,
+ .dram_sdqs2 = 0x00000030,
+ .dram_sdqs3 = 0x00000030,
+ .dram_sdqs4 = 0x00000030,
+ .dram_sdqs5 = 0x00000030,
+ .dram_sdqs6 = 0x00000030,
+ .dram_sdqs7 = 0x00000030,
+ .dram_dqm0 = 0x00020030,
+ .dram_dqm1 = 0x00020030,
+ .dram_dqm2 = 0x00020030,
+ .dram_dqm3 = 0x00020030,
+ .dram_dqm4 = 0x00020030,
+ .dram_dqm5 = 0x00020030,
+ .dram_dqm6 = 0x00020030,
+ .dram_dqm7 = 0x00020030,
+};
+
+const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
+ .grp_ddr_type = 0x000C0000,
+ .grp_ddrmode_ctl = 0x00020000,
+ .grp_ddrpke = 0x00000000,
+ .grp_addds = 0x00000030,
+ .grp_ctlds = 0x00000030,
+ .grp_ddrmode = 0x00020000,
+ .grp_b0ds = 0x00000030,
+ .grp_b1ds = 0x00000030,
+ .grp_b2ds = 0x00000030,
+ .grp_b3ds = 0x00000030,
+ .grp_b4ds = 0x00000030,
+ .grp_b5ds = 0x00000030,
+ .grp_b6ds = 0x00000030,
+ .grp_b7ds = 0x00000030,
+};
+
+const struct mx6_mmdc_calibration mx6_mmcd_calib = {
+ .p0_mpwldectrl0 = 0x001F001F,
+ .p0_mpwldectrl1 = 0x001F001F,
+ .p1_mpwldectrl0 = 0x00440044,
+ .p1_mpwldectrl1 = 0x00440044,
+ .p0_mpdgctrl0 = 0x434B0350,
+ .p0_mpdgctrl1 = 0x034C0359,
+ .p1_mpdgctrl0 = 0x434B0350,
+ .p1_mpdgctrl1 = 0x03650348,
+ .p0_mprddlctl = 0x4436383B,
+ .p1_mprddlctl = 0x39393341,
+ .p0_mpwrdlctl = 0x35373933,
+ .p1_mpwrdlctl = 0x48254A36,
+};
+
+/* MT41K128M16JT-125 */
+static struct mx6_ddr3_cfg mem_ddr = {
+ .mem_speed = 1600,
+ .density = 2,
+ .width = 16,
+ .banks = 8,
+ .rowaddr = 14,
+ .coladdr = 10,
+ .pagesz = 2,
+ .trcd = 1375,
+ .trcmin = 4875,
+ .trasmin = 3500,
+};
+
+static void ccgr_init(void)
+{
+ struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+
+ writel(0x00C03F3F, &ccm->CCGR0);
+ writel(0x0030FC03, &ccm->CCGR1);
+ writel(0x0FFFC000, &ccm->CCGR2);
+ writel(0x3FF00000, &ccm->CCGR3);
+ writel(0x00FFF300, &ccm->CCGR4);
+ writel(0x0F0000C3, &ccm->CCGR5);
+ writel(0x000003FF, &ccm->CCGR6);
+}
+
+static void gpr_init(void)
+{
+ struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
+
+ /* enable AXI cache for VDOA/VPU/IPU */
+ writel(0xF00000CF, &iomux->gpr[4]);
+ /* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
+ writel(0x007F007F, &iomux->gpr[6]);
+ writel(0x007F007F, &iomux->gpr[7]);
+}
+
+/*
+ * This section requires the differentiation between iMX6 Sabre boards, but
+ * for now, it will configure only for the mx6q variant.
+ */
+static void spl_dram_init(void)
+{
+ struct mx6_ddr_sysinfo sysinfo = {
+ /* width of data bus:0=16,1=32,2=64 */
+ .dsize = 2,
+ /* config for full 4GB range so that get_mem_size() works */
+ .cs_density = 32, /* 32Gb per CS */
+ /* single chip select */
+ .ncs = 1,
+ .cs1_mirror = 0,
+ .rtt_wr = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Wr = RZQ/4 */
+ .rtt_nom = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Nom = RZQ/4 */
+ .walat = 1, /* Write additional latency */
+ .ralat = 5, /* Read additional latency */
+ .mif3_mode = 3, /* Command prediction working mode */
+ .bi_on = 1, /* Bank interleaving enabled */
+ .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
+ .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
+ .ddr_type = DDR_TYPE_DDR3,
+ };
+
+ mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
+ mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
+}
+
+void board_init_f(ulong dummy)
+{
+ /* setup AIPS and disable watchdog */
+ arch_cpu_init();
+
+ ccgr_init();
+ gpr_init();
+
+ /* iomux and setup of i2c */
+ board_early_init_f();
+
+ /* setup GP timer */
+ timer_init();
+
+ /* UART clocks enabled and gd valid - init serial console */
+ preloader_console_init();
+
+ /* DDR initialization */
+ spl_dram_init();
+
+ /* Clear the BSS. */
+ memset(__bss_start, 0, __bss_end - __bss_start);
+
+ /* load/boot image from boot device */
+ board_init_r(NULL, 0);
+}
+
+#endif
projects / u-boot / commitdiff