mx6: add support for el6x board

Custom Board based on MX6 Dual, 1GB RAM and eMMC.

There are two variants of the board with and without
PCIe (ZC5202 and ZC5601).

Signed-off-by: Stefano Babic <sbabic@denx.de>

4 files changed, 680 insertions, 0 deletions

diff --git a/board/el/el6x/Kconfig b/board/el/el6x/Kconfig
new file mode 100644
index 0000000..aa9bf25
--- /dev/null
+++ b/board/el/el6x/Kconfig
@@ -0,0 +1,25 @@
+if TARGET_ZC5202
+
+config SYS_BOARD
+	default "el6x"
+
+config SYS_VENDOR
+	default "el"
+
+config SYS_CONFIG_NAME
+	default "zc5202"
+
+endif
+
+if TARGET_ZC5601
+
+config SYS_BOARD
+	default "el6x"
+
+config SYS_VENDOR
+	default "el"
+
+config SYS_CONFIG_NAME
+	default "zc5601"
+
+endif
diff --git a/board/el/el6x/MAINTAINERS b/board/el/el6x/MAINTAINERS
new file mode 100644
index 0000000..9a40010
--- /dev/null
+++ b/board/el/el6x/MAINTAINERS
@@ -0,0 +1,8 @@
+EL6X BOARD
+M:	Stefano Babic <sbabic@denx.de>
+S:	Maintained
+F:	board/el/el6x/
+F:	include/configs/zc5202.h
+F:	include/configs/zc5601.h
+F:	configs/zc5202_defconfig
+F:	configs/zc5601_defconfig
diff --git a/board/el/el6x/Makefile b/board/el/el6x/Makefile
new file mode 100644
index 0000000..48d5ad9
--- /dev/null
+++ b/board/el/el6x/Makefile
@@ -0,0 +1,7 @@
+#
+# Copyright (C) Stefano Babic <sbabic@denx.de>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y  := el6x.o
diff --git a/board/el/el6x/el6x.c b/board/el/el6x/el6x.c
new file mode 100644
index 0000000..3b0fb32
--- /dev/null
+++ b/board/el/el6x/el6x.c
@@ -0,0 +1,640 @@
+/*
+ * 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, &reg);
+	printf("PMIC:  PFUZE100 ID=0x%02x\n", reg);
+
+	/* Increase VGEN3 from 2.5 to 2.8V */
+	pmic_reg_read(p, PFUZE100_VGEN3VOL, &reg);
+	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);
+	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);
+	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);
+	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);
+	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);
+	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