board/freescale/mx7d_12x12_lpddr3_arm2/mx7d_12x12_lpddr3_arm2.c

/*
 * Copyright (C) 2014-2015 Freescale Semiconductor, Inc.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <asm/arch/clock.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/mx7-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/imx-common/iomux-v3.h>
#include <asm/imx-common/boot_mode.h>
#include <asm/io.h>
#include <linux/sizes.h>
#include <common.h>
#include <fsl_esdhc.h>
#include <mmc.h>
#include <miiphy.h>
#include <netdev.h>
#include <power/pmic.h>
#include <power/pfuze3000_pmic.h>
#include "../common/pfuze.h"
#include <asm/arch/crm_regs.h>
#include <asm/imx-common/video.h>

#ifdef CONFIG_VIDEO_MXS
#include <linux/fb.h>
#endif
#if defined(CONFIG_MXC_EPDC)
#include <lcd.h>
#include <mxc_epdc_fb.h>
#endif

DECLARE_GLOBAL_DATA_PTR;

#define UART_PAD_CTRL  (PAD_CTL_DSE_3P3V_49OHM | \
	PAD_CTL_PUS_PU100KOHM | PAD_CTL_HYS)

#define ENET_PAD_CTRL  (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_98OHM)
#define ENET_PAD_CTRL_MII  (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_98OHM)

#define ENET_RX_PAD_CTRL  (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_98OHM)

#define LCD_PAD_CTRL    (PAD_CTL_HYS | PAD_CTL_PUS_PU100KOHM | \
	PAD_CTL_DSE_3P3V_49OHM)

#define QSPI_PAD_CTRL	\
		(PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM)

#define SPI_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_SRE_SLOW | PAD_CTL_HYS)

#define EPDC_PAD_CTRL	0x0

int dram_init(void)
{
	gd->ram_size = PHYS_SDRAM_SIZE;

	return 0;
}

static iomux_v3_cfg_t const uart1_pads[] = {
	MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
	MX7D_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
};

#ifdef CONFIG_VIDEO_MXS
static iomux_v3_cfg_t const lcd_pads[] = {
	MX7D_PAD_LCD_CLK__LCD_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_ENABLE__LCD_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_HSYNC__LCD_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_VSYNC__LCD_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA00__LCD_DATA0 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA01__LCD_DATA1 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA02__LCD_DATA2 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA03__LCD_DATA3 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA04__LCD_DATA4 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA05__LCD_DATA5 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA06__LCD_DATA6 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA07__LCD_DATA7 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA08__LCD_DATA8 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA09__LCD_DATA9 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA10__LCD_DATA10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA11__LCD_DATA11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA12__LCD_DATA12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA13__LCD_DATA13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA14__LCD_DATA14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA15__LCD_DATA15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA16__LCD_DATA16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA17__LCD_DATA17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA18__LCD_DATA18 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA19__LCD_DATA19 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA20__LCD_DATA20 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA21__LCD_DATA21 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA22__LCD_DATA22 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX7D_PAD_LCD_DATA23__LCD_DATA23 | MUX_PAD_CTRL(LCD_PAD_CTRL),

	MX7D_PAD_LCD_RESET__GPIO3_IO4 | MUX_PAD_CTRL(LCD_PAD_CTRL),
};

static iomux_v3_cfg_t const pwm_pads[] = {
	/* Use GPIO for Brightness adjustment, duty cycle = period */
	MX7D_PAD_GPIO1_IO01__GPIO1_IO1 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

void do_enable_parallel_lcd(struct display_info_t const *dev)
{
	imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));

	imx_iomux_v3_setup_multiple_pads(pwm_pads, ARRAY_SIZE(pwm_pads));

	/* Power up the LCD */
	gpio_request(IMX_GPIO_NR(3, 4), "lcd_pwr");
	gpio_direction_output(IMX_GPIO_NR(3, 4) , 1);

	/* Set Brightness to high */
	gpio_request(IMX_GPIO_NR(1, 1), "lcd_backlight");
	gpio_direction_output(IMX_GPIO_NR(1, 1) , 1);
}

struct display_info_t const displays[] = {{
	.bus = ELCDIF1_IPS_BASE_ADDR,
	.addr = 0,
	.pixfmt = 24,
	.detect = NULL,
	.enable	= do_enable_parallel_lcd,
	.mode	= {
		.name			= "MCIMX28LCD",
		.xres           = 800,
		.yres           = 480,
		.pixclock       = 29850,
		.left_margin    = 89,
		.right_margin   = 164,
		.upper_margin   = 23,
		.lower_margin   = 10,
		.hsync_len      = 10,
		.vsync_len      = 10,
		.sync           = 0,
		.vmode          = FB_VMODE_NONINTERLACED
} } };
size_t display_count = ARRAY_SIZE(displays);
#endif


static iomux_v3_cfg_t const per_rst_pads[] = {
	MX7D_PAD_GPIO1_IO03__GPIO1_IO3 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static iomux_v3_cfg_t const wdog_pads[] = {
	MX7D_PAD_GPIO1_IO00__WDOG1_WDOG_B | MUX_PAD_CTRL(NO_PAD_CTRL),
};

#ifdef CONFIG_FEC_MXC
static iomux_v3_cfg_t const fec1_pads[] = {
	MX7D_PAD_GPIO1_IO11__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL_MII),
	MX7D_PAD_GPIO1_IO10__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL_MII),
	MX7D_PAD_ENET1_RGMII_RX_CTL__ENET1_RGMII_RX_CTL | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX7D_PAD_ENET1_RGMII_RD0__ENET1_RGMII_RD0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX7D_PAD_ENET1_RGMII_RD1__ENET1_RGMII_RD1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX7D_PAD_ENET1_RGMII_RD2__ENET1_RGMII_RD2 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX7D_PAD_ENET1_RGMII_RD3__ENET1_RGMII_RD3 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX7D_PAD_ENET1_RGMII_RXC__ENET1_RGMII_RXC | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX7D_PAD_ENET1_RGMII_TX_CTL__ENET1_RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX7D_PAD_ENET1_RGMII_TD0__ENET1_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX7D_PAD_ENET1_RGMII_TD1__ENET1_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX7D_PAD_ENET1_RGMII_TD2__ENET1_RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX7D_PAD_ENET1_RGMII_TD3__ENET1_RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX7D_PAD_ENET1_RGMII_TXC__ENET1_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX7D_PAD_ENET1_TX_CLK__CCM_ENET_REF_CLK1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
};

static void setup_iomux_fec1(void)
{
	imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
}
#endif

static void setup_iomux_uart(void)
{
	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
}

#ifdef CONFIG_FSL_QSPI
#ifndef CONFIG_DM_SPI
static iomux_v3_cfg_t const quadspi_pads[] = {
	MX7D_PAD_EPDC_DATA00__QSPI_A_DATA0 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	MX7D_PAD_EPDC_DATA01__QSPI_A_DATA1 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	MX7D_PAD_EPDC_DATA02__QSPI_A_DATA2 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	MX7D_PAD_EPDC_DATA03__QSPI_A_DATA3 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	MX7D_PAD_EPDC_DATA04__QSPI_A_DQS   | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	MX7D_PAD_EPDC_DATA05__QSPI_A_SCLK  | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	MX7D_PAD_EPDC_DATA06__QSPI_A_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	MX7D_PAD_EPDC_DATA07__QSPI_A_SS1_B | MUX_PAD_CTRL(QSPI_PAD_CTRL),

	MX7D_PAD_EPDC_DATA08__QSPI_B_DATA0 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	MX7D_PAD_EPDC_DATA09__QSPI_B_DATA1 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	MX7D_PAD_EPDC_DATA10__QSPI_B_DATA2 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	MX7D_PAD_EPDC_DATA11__QSPI_B_DATA3 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	MX7D_PAD_EPDC_DATA12__QSPI_B_DQS   | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	MX7D_PAD_EPDC_DATA13__QSPI_B_SCLK  | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	MX7D_PAD_EPDC_DATA14__QSPI_B_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	MX7D_PAD_EPDC_DATA15__QSPI_B_SS1_B | MUX_PAD_CTRL(QSPI_PAD_CTRL),

};
#endif

int board_qspi_init(void)
{
#ifndef CONFIG_DM_SPI
	/* Set the iomux */
	imx_iomux_v3_setup_multiple_pads(quadspi_pads, ARRAY_SIZE(quadspi_pads));
#endif

	/* Set the clock */
	set_clk_qspi();

	return 0;
}
#endif

#ifdef CONFIG_FSL_ESDHC
int mmc_map_to_kernel_blk(int dev_no)
{
	return dev_no;
}

int board_mmc_get_env_dev(int devno)
{
	return devno;
}
#endif

#ifdef CONFIG_FEC_MXC
int board_eth_init(bd_t *bis)
{
	int ret;

	setup_iomux_fec1();

	ret = fecmxc_initialize_multi(bis, 0,
		CONFIG_FEC_MXC_PHYADDR, IMX_FEC_BASE);
	if (ret)
		printf("FEC1 MXC: %s:failed\n", __func__);

	return 0;
}

static int setup_fec(void)
{
	struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs
		= (struct iomuxc_gpr_base_regs *) IOMUXC_GPR_BASE_ADDR;
	int ret;

	/* Use 125M anatop REF_CLK1 for ENET1, clear gpr1[13], gpr1[17]*/
	clrsetbits_le32(&iomuxc_gpr_regs->gpr[1],
		(IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK |
		 IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK), 0);

	ret = set_clk_enet(ENET_125MHz);
	if (ret)
		return ret;

	return 0;
}


int board_phy_config(struct phy_device *phydev)
{
	/* Enable 1.8V(SEL_1P5_1P8_POS_REG) on
	   Phy control debug reg 0 */
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);

	/* rgmii tx clock delay enable */
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);

	if (phydev->drv->config)
		phydev->drv->config(phydev);

	return 0;
}
#endif

#ifdef CONFIG_MXC_SPI
iomux_v3_cfg_t const ecspi1_pads[] = {
	MX7D_PAD_ECSPI1_SCLK__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
	MX7D_PAD_ECSPI1_MOSI__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
	MX7D_PAD_ECSPI1_MISO__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),

	/* CS0 */
	MX7D_PAD_ECSPI1_SS0__GPIO4_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

void setup_spinor(void)
{
	imx_iomux_v3_setup_multiple_pads(ecspi1_pads,
					 ARRAY_SIZE(ecspi1_pads));
	gpio_request(IMX_GPIO_NR(4, 19), "ecspi1_cs");
	gpio_direction_output(IMX_GPIO_NR(4, 19), 0);
}

int board_spi_cs_gpio(unsigned bus, unsigned cs)
{
	return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(4, 19)) : -1;
}
#endif

int board_early_init_f(void)
{
	setup_iomux_uart();

	return 0;
}

#ifdef CONFIG_MXC_EPDC
static iomux_v3_cfg_t const epdc_enable_pads[] = {
	MX7D_PAD_EPDC_DATA00__EPDC_DATA0	| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_DATA01__EPDC_DATA1	| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_DATA02__EPDC_DATA2	| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_DATA03__EPDC_DATA3	| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_DATA04__EPDC_DATA4	| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_DATA05__EPDC_DATA5	| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_DATA06__EPDC_DATA6	| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_DATA07__EPDC_DATA7	| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_SDCLK__EPDC_SDCLK		| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_SDLE__EPDC_SDLE		| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_SDOE__EPDC_SDOE		| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_SDSHR__EPDC_SDSHR		| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_SDCE0__EPDC_SDCE0		| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_SDCE1__EPDC_SDCE1		| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_SDCE2__EPDC_SDCE2		| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_SDCE3__EPDC_SDCE3		| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_GDCLK__EPDC_GDCLK		| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_GDOE__EPDC_GDOE		| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_GDRL__EPDC_GDRL		| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_GDSP__EPDC_GDSP		| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_BDR0__EPDC_BDR0		| MUX_PAD_CTRL(EPDC_PAD_CTRL),
	MX7D_PAD_EPDC_BDR1__EPDC_BDR1		| MUX_PAD_CTRL(EPDC_PAD_CTRL),
};

static iomux_v3_cfg_t const epdc_disable_pads[] = {
	MX7D_PAD_EPDC_DATA00__GPIO2_IO0,
	MX7D_PAD_EPDC_DATA01__GPIO2_IO1,
	MX7D_PAD_EPDC_DATA02__GPIO2_IO2,
	MX7D_PAD_EPDC_DATA03__GPIO2_IO3,
	MX7D_PAD_EPDC_DATA04__GPIO2_IO4,
	MX7D_PAD_EPDC_DATA05__GPIO2_IO5,
	MX7D_PAD_EPDC_DATA06__GPIO2_IO6,
	MX7D_PAD_EPDC_DATA07__GPIO2_IO7,
	MX7D_PAD_EPDC_SDCLK__GPIO2_IO16,
	MX7D_PAD_EPDC_SDLE__GPIO2_IO17,
	MX7D_PAD_EPDC_SDOE__GPIO2_IO18,
	MX7D_PAD_EPDC_SDSHR__GPIO2_IO19,
	MX7D_PAD_EPDC_SDCE0__GPIO2_IO20,
	MX7D_PAD_EPDC_SDCE1__GPIO2_IO21,
	MX7D_PAD_EPDC_SDCE2__GPIO2_IO22,
	MX7D_PAD_EPDC_SDCE3__GPIO2_IO23,
	MX7D_PAD_EPDC_GDCLK__GPIO2_IO24,
	MX7D_PAD_EPDC_GDOE__GPIO2_IO25,
	MX7D_PAD_EPDC_GDRL__GPIO2_IO26,
	MX7D_PAD_EPDC_GDSP__GPIO2_IO27,
	MX7D_PAD_EPDC_BDR0__GPIO2_IO28,
	MX7D_PAD_EPDC_BDR1__GPIO2_IO29,
};

vidinfo_t panel_info = {
	.vl_refresh = 85,
	.vl_col = 1024,
	.vl_row = 758,
	.vl_pixclock = 40000000,
	.vl_left_margin = 12,
	.vl_right_margin = 76,
	.vl_upper_margin = 4,
	.vl_lower_margin = 5,
	.vl_hsync = 12,
	.vl_vsync = 2,
	.vl_sync = 0,
	.vl_mode = 0,
	.vl_flag = 0,
	.vl_bpix = 3,
	.cmap = 0,
};

struct epdc_timing_params panel_timings = {
	.vscan_holdoff = 4,
	.sdoed_width = 10,
	.sdoed_delay = 20,
	.sdoez_width = 10,
	.sdoez_delay = 20,
	.gdclk_hp_offs = 524,
	.gdsp_offs = 327,
	.gdoe_offs = 0,
	.gdclk_offs = 19,
	.num_ce = 1,
};

static void setup_epdc_power(void)
{
	/* IOMUX_GPR1: bit30: Disable On-chip RAM EPDC Function */
	struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs
		= (struct iomuxc_gpr_base_regs *) IOMUXC_GPR_BASE_ADDR;

	clrsetbits_le32(&iomuxc_gpr_regs->gpr[1],
		IOMUXC_GPR_GPR1_GPR_ENABLE_OCRAM_EPDC_MASK, 0);

	/* Setup epdc voltage */

	/* EPDC_PWRSTAT - GPIO2[31] for PWR_GOOD status */
	imx_iomux_v3_setup_pad(MX7D_PAD_EPDC_PWR_STAT__GPIO2_IO31 |
				MUX_PAD_CTRL(EPDC_PAD_CTRL));
	gpio_request(IMX_GPIO_NR(2, 31), "epdc_pwrstat");
	gpio_direction_input(IMX_GPIO_NR(2, 31));

	/* EPDC_VCOM0 - GPIO4[14] for VCOM control */
	imx_iomux_v3_setup_pad(MX7D_PAD_I2C4_SCL__GPIO4_IO14 |
				MUX_PAD_CTRL(EPDC_PAD_CTRL));

	/* Set as output */
	gpio_request(IMX_GPIO_NR(4, 14), "epdc_vcom0");
	gpio_direction_output(IMX_GPIO_NR(4, 14), 1);

	/* EPDC_PWRWAKEUP - GPIO4[23] for EPD PMIC WAKEUP */
	imx_iomux_v3_setup_pad(MX7D_PAD_ECSPI2_SS0__GPIO4_IO23 |
				MUX_PAD_CTRL(EPDC_PAD_CTRL));
	/* Set as output */
	gpio_request(IMX_GPIO_NR(4, 23), "epdc_pwrwakeup");
	gpio_direction_output(IMX_GPIO_NR(4, 23), 1);

	/* EPDC_PWRCTRL0 - GPIO4[20] for EPD PWR CTL0 */
	imx_iomux_v3_setup_pad(MX7D_PAD_ECSPI2_SCLK__GPIO4_IO20 |
				MUX_PAD_CTRL(EPDC_PAD_CTRL));
	/* Set as output */
	gpio_request(IMX_GPIO_NR(4, 20), "epdc_pwrctrl0");
	gpio_direction_output(IMX_GPIO_NR(4, 20), 1);
}

static void epdc_enable_pins(void)
{
	/* epdc iomux settings */
	imx_iomux_v3_setup_multiple_pads(epdc_enable_pads,
				ARRAY_SIZE(epdc_enable_pads));
}

static void epdc_disable_pins(void)
{
	/* Configure MUX settings for EPDC pins to GPIO  and drive to 0 */
	imx_iomux_v3_setup_multiple_pads(epdc_disable_pads,
				ARRAY_SIZE(epdc_disable_pads));
}

static void setup_epdc(void)
{
	/*** epdc Maxim PMIC settings ***/

	/* EPDC_PWRSTAT - GPIO2[31] for PWR_GOOD status */
	imx_iomux_v3_setup_pad(MX7D_PAD_EPDC_PWR_STAT__GPIO2_IO31 |
				MUX_PAD_CTRL(EPDC_PAD_CTRL));

	/* EPDC_VCOM0 - GPIO4[14] for VCOM control */
	imx_iomux_v3_setup_pad(MX7D_PAD_I2C4_SCL__GPIO4_IO14 |
				MUX_PAD_CTRL(EPDC_PAD_CTRL));

	/* EPDC_PWRWAKEUP - GPIO4[23] for EPD PMIC WAKEUP */
	imx_iomux_v3_setup_pad(MX7D_PAD_ECSPI2_SS0__GPIO4_IO23 |
				MUX_PAD_CTRL(EPDC_PAD_CTRL));

	/* EPDC_PWRCTRL0 - GPIO4[20] for EPD PWR CTL0 */
	imx_iomux_v3_setup_pad(MX7D_PAD_ECSPI2_SCLK__GPIO4_IO20 |
				MUX_PAD_CTRL(EPDC_PAD_CTRL));

	/* Set pixel clock rates for EPDC in clock.c */

	panel_info.epdc_data.wv_modes.mode_init = 0;
	panel_info.epdc_data.wv_modes.mode_du = 1;
	panel_info.epdc_data.wv_modes.mode_gc4 = 3;
	panel_info.epdc_data.wv_modes.mode_gc8 = 2;
	panel_info.epdc_data.wv_modes.mode_gc16 = 2;
	panel_info.epdc_data.wv_modes.mode_gc32 = 2;

	panel_info.epdc_data.epdc_timings = panel_timings;

	setup_epdc_power();
}

void epdc_power_on(void)
{
	unsigned int reg;
	struct gpio_regs *gpio_regs = (struct gpio_regs *)GPIO2_BASE_ADDR;

	/* Set EPD_PWR_CTL0 to high - enable EINK_VDD (3.15) */
	gpio_set_value(IMX_GPIO_NR(4, 20), 1);
	udelay(1000);

	/* Enable epdc signal pin */
	epdc_enable_pins();

	/* Set PMIC Wakeup to high - enable Display power */
	gpio_set_value(IMX_GPIO_NR(4, 23), 1);

	/* Wait for PWRGOOD == 1 */
	while (1) {
		reg = readl(&gpio_regs->gpio_psr);
		if (!(reg & (1 << 31)))
			break;

		udelay(100);
	}

	/* Enable VCOM */
	gpio_set_value(IMX_GPIO_NR(4, 14), 1);

	udelay(500);
}

void epdc_power_off(void)
{
	/* Set PMIC Wakeup to low - disable Display power */
	gpio_set_value(IMX_GPIO_NR(4, 23), 0);

	/* Disable VCOM */
	gpio_set_value(IMX_GPIO_NR(4, 14), 0);

	epdc_disable_pins();

	/* Set EPD_PWR_CTL0 to low - disable EINK_VDD (3.15) */
	gpio_set_value(IMX_GPIO_NR(4, 20), 0);
}
#endif

int board_init(void)
{
	/* address of boot parameters */
	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;

	/* Reset peripherals */
	imx_iomux_v3_setup_multiple_pads(per_rst_pads, ARRAY_SIZE(per_rst_pads));

	gpio_request(IMX_GPIO_NR(1, 3), "per_rst");
	gpio_direction_output(IMX_GPIO_NR(1, 3) , 0);
	udelay(500);
	gpio_set_value(IMX_GPIO_NR(1, 3), 1);

#ifdef CONFIG_FEC_MXC
	setup_fec();
#endif

#ifdef CONFIG_MXC_SPI
	setup_spinor();
#endif

#ifdef CONFIG_FSL_QSPI
	board_qspi_init();
#endif

#ifdef	CONFIG_MXC_EPDC
	setup_epdc();
#endif

	return 0;
}

#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
	/* 4 bit bus width */
	{"sd1", MAKE_CFGVAL(0x10, 0x12, 0x00, 0x00)},
	{"sd2", MAKE_CFGVAL(0x10, 0x16, 0x00, 0x00)},
	{"emmc", MAKE_CFGVAL(0x10, 0x2a, 0x00, 0x00)},
	{"qspi", MAKE_CFGVAL(0x00, 0x40, 0x00, 0x00)},
	{NULL,   0},
};
#endif

#ifdef CONFIG_DM_PMIC
int power_init_board(void)
{
	struct udevice *dev;
	int ret, dev_id, rev_id, reg;

	ret = pmic_get("pfuze3000", &dev);
	if (ret == -ENODEV)
		return 0;
	if (ret != 0)
		return ret;

	dev_id = pmic_reg_read(dev, PFUZE3000_DEVICEID);
	rev_id = pmic_reg_read(dev, PFUZE3000_REVID);
	printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", dev_id, rev_id);

	/* disable Low Power Mode during standby mode */
	reg = pmic_reg_read(dev, PFUZE3000_LDOGCTL);
	reg |= 0x1;
	pmic_reg_write(dev, PFUZE3000_LDOGCTL, reg);

	/* SW1A/1B mode set to APS/APS */
	reg = 0x8;
	pmic_reg_write(dev, PFUZE3000_SW1AMODE, reg);
	pmic_reg_write(dev, PFUZE3000_SW1BMODE, reg);

	/* SW1A/1B standby voltage set to 0.975V */
	reg = 0xb;
	pmic_reg_write(dev, PFUZE3000_SW1ASTBY, reg);
	pmic_reg_write(dev, PFUZE3000_SW1BSTBY, reg);

	/* below are for LPSR mode support */
	reg = pmic_reg_read(dev, PFUZE3000_SW3MODE);
	reg |= 0x20;
	pmic_reg_write(dev, PFUZE3000_SW3MODE, reg);

	reg = pmic_reg_read(dev, PFUZE3000_VLDO1CTL);
	reg |= 0x80;
	pmic_reg_write(dev, PFUZE3000_VLDO1CTL, reg);

	reg = pmic_reg_read(dev, PFUZE3000_VLDO3CTL);
	reg |= 0x80;
	pmic_reg_write(dev, PFUZE3000_VLDO3CTL, reg);

	reg = pmic_reg_read(dev, PFUZE3000_SW2MODE);
	reg |= 0x20;
	pmic_reg_write(dev, PFUZE3000_SW2MODE, reg);

	/* set SW1B normal voltage to 0.975V */
	reg = pmic_reg_read(dev, PFUZE3000_SW1BVOLT);
	reg &= ~0x1f;
	reg |= PFUZE3000_SW1AB_SETP(9750);
	pmic_reg_write(dev, PFUZE3000_SW1BVOLT, reg);

	return 0;
}
#endif

int board_late_init(void)
{
#ifdef CONFIG_CMD_BMODE
	add_board_boot_modes(board_boot_modes);
#endif

#ifdef CONFIG_ENV_IS_IN_MMC
	board_late_mmc_env_init();
#endif

	imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));

	set_wdog_reset((struct wdog_regs *)WDOG1_BASE_ADDR);

	return 0;
}

u32 get_board_rev(void)
{
	return get_cpu_rev();
}

int checkboard(void)
{
	puts("Board: MX7D 12x12 LPDDR3 ARM2\n");

	return 0;
}