path: root/board/freescale/picosom-imx6ul/picosom-imx6ul.c

/*
 * Copyright (C) 2015 Technexion Ltd.
 *
 * Author: Richard Hu <richard.hu@technexion.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <asm/arch/clock.h>
#include <asm/arch/iomux.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/mx6-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/imx-common/mxc_i2c.h>
#include <asm/io.h>
#include <common.h>
#include <fsl_esdhc.h>
#include <i2c.h>
#include <linux/sizes.h>
#include <linux/fb.h>
#include <miiphy.h>
#include <mmc.h>
#include <mxsfb.h>
#include <netdev.h>
#include <usb.h>
#include <usb/ehci-fsl.h>

#ifdef CONFIG_POWER
#include <power/pmic.h>
#include <power/pfuze300_pmic.h>
#include "../../freescale/common/pfuze.h"
#endif

#ifdef CONFIG_FSL_FASTBOOT
#include <fsl_fastboot.h>
#ifdef CONFIG_ANDROID_RECOVERY
#include <recovery.h>
#endif
#endif /*CONFIG_FSL_FASTBOOT*/


DECLARE_GLOBAL_DATA_PTR;

#define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
	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_PKE | PAD_CTL_PUE |		\
	PAD_CTL_PUS_22K_UP  | PAD_CTL_SPEED_LOW |		\
	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

#define USDHC_SD_CD_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |		\
	PAD_CTL_PUS_100K_DOWN  | 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_PUE |     \
	PAD_CTL_SPEED_HIGH   |                                   \
	PAD_CTL_DSE_48ohm   | PAD_CTL_SRE_FAST)

#define MDIO_PAD_CTRL  (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE |     \
	PAD_CTL_DSE_48ohm   | PAD_CTL_SRE_FAST | PAD_CTL_ODE)


#define ENET_CLK_PAD_CTRL  (PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST)

#define ENET_RX_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |          \
	PAD_CTL_SPEED_HIGH   | PAD_CTL_SRE_FAST)

#define I2C_PAD_CTRL    (PAD_CTL_PKE | PAD_CTL_PUE |            \
	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
	PAD_CTL_DSE_40ohm | PAD_CTL_HYS |			\
	PAD_CTL_ODE)

#define LCD_PAD_CTRL    (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
	PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm)

#define GPMI_PAD_CTRL0 (PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_100K_UP)
#define GPMI_PAD_CTRL1 (PAD_CTL_DSE_40ohm | PAD_CTL_SPEED_MED | \
			PAD_CTL_SRE_FAST)
#define GPMI_PAD_CTRL2 (GPMI_PAD_CTRL0 | GPMI_PAD_CTRL1)

#define WEIM_NOR_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
		PAD_CTL_PUS_100K_UP | 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 OTG_ID_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |		\
	PAD_CTL_PUS_47K_UP  | PAD_CTL_SPEED_LOW |		\
	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

#define VERSION_DET_DDR_SIZE   IMX_GPIO_NR(5, 1)

#ifdef CONFIG_SYS_I2C_MXC
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
/* I2C2 for PMIC */
struct i2c_pads_info i2c_pad_info1 = {
	.scl = {
		.i2c_mode =  MX6_PAD_GPIO1_IO02__I2C1_SCL | PC,
		.gpio_mode = MX6_PAD_GPIO1_IO02__GPIO1_IO02  | PC,
		.gp = IMX_GPIO_NR(1, 2),
	},
	.sda = {
		.i2c_mode = MX6_PAD_GPIO1_IO03__I2C1_SDA | PC,
		.gpio_mode = MX6_PAD_GPIO1_IO03__GPIO1_IO03 | PC,
		.gp = IMX_GPIO_NR(1, 3),
	},
};
#endif

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

	return 0;
}

static iomux_v3_cfg_t const uart6_pads[] = {
	MX6_PAD_CSI_MCLK__UART6_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
	MX6_PAD_CSI_PIXCLK__UART6_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
};

static iomux_v3_cfg_t const usdhc1_pads[] = {
	MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
#ifndef CONFIG_SYS_USE_NAND
    MX6_PAD_NAND_READY_B__USDHC1_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
    MX6_PAD_NAND_CE0_B__USDHC1_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
    MX6_PAD_NAND_CE1_B__USDHC1_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
    MX6_PAD_NAND_CLE__USDHC1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
#endif
	/* CD */
    MX6_PAD_UART1_RTS_B__GPIO1_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static iomux_v3_cfg_t const version_detection_pads[] = {
	/* dram size detection */
	MX6_PAD_SNVS_TAMPER1__GPIO5_IO01 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

#ifdef CONFIG_SYS_USE_NAND
static iomux_v3_cfg_t const nand_pads[] = {
	MX6_PAD_NAND_DATA00__RAWNAND_DATA00 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_DATA01__RAWNAND_DATA01 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_DATA02__RAWNAND_DATA02 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_DATA03__RAWNAND_DATA03 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_DATA04__RAWNAND_DATA04 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_DATA05__RAWNAND_DATA05 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_DATA06__RAWNAND_DATA06 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_DATA07__RAWNAND_DATA07 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_CLE__RAWNAND_CLE | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_ALE__RAWNAND_ALE | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_CE0_B__RAWNAND_CE0_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_CE1_B__RAWNAND_CE1_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_RE_B__RAWNAND_RE_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_WE_B__RAWNAND_WE_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_WP_B__RAWNAND_WP_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_READY_B__RAWNAND_READY_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6_PAD_NAND_DQS__RAWNAND_DQS | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
};

static void setup_gpmi_nand(void)
{
	struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;

	/* config gpmi nand iomux */
	imx_iomux_v3_setup_multiple_pads(nand_pads, ARRAY_SIZE(nand_pads));

	clrbits_le32(&mxc_ccm->CCGR4,
		     MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
		     MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK);

	/*
	 * config gpmi and bch clock to 100 MHz
	 * bch/gpmi select PLL2 PFD2 400M
	 * 100M = 400M / 4
	 */
	clrbits_le32(&mxc_ccm->cscmr1,
		     MXC_CCM_CSCMR1_BCH_CLK_SEL |
		     MXC_CCM_CSCMR1_GPMI_CLK_SEL);
	clrsetbits_le32(&mxc_ccm->cscdr1,
			MXC_CCM_CSCDR1_BCH_PODF_MASK |
			MXC_CCM_CSCDR1_GPMI_PODF_MASK,
			(3 << MXC_CCM_CSCDR1_BCH_PODF_OFFSET) |
			(3 << MXC_CCM_CSCDR1_GPMI_PODF_OFFSET));

	/* enable gpmi and bch clock gating */
	setbits_le32(&mxc_ccm->CCGR4,
		     MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
		     MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK);

	/* enable apbh clock gating */
	setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
}
#endif

#ifdef CONFIG_FEC_MXC
static iomux_v3_cfg_t const fec_pads[] = {
	MX6_PAD_ENET1_TX_EN__ENET2_MDC | MUX_PAD_CTRL(MDIO_PAD_CTRL),
	MX6_PAD_ENET1_TX_DATA1__ENET2_MDIO | MUX_PAD_CTRL(MDIO_PAD_CTRL),

	MX6_PAD_ENET2_TX_DATA0__ENET2_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_ENET2_TX_DATA1__ENET2_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_ENET2_TX_CLK__ENET2_REF_CLK2 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
	MX6_PAD_ENET2_TX_EN__ENET2_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),

	MX6_PAD_ENET2_RX_DATA0__ENET2_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_ENET2_RX_DATA1__ENET2_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_ENET2_RX_EN__ENET2_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_ENET2_RX_ER__ENET2_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL),

	MX6_PAD_UART4_TX_DATA__GPIO1_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

#define RMII_PHY_RESET IMX_GPIO_NR(1, 28)

static void setup_iomux_fec(int fec_id)
{
	imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
}
#endif

static void setup_iomux_version_detection(void)
{
	SETUP_IOMUX_PADS(version_detection_pads);
}

static void setup_iomux_uart(void)
{
	imx_iomux_v3_setup_multiple_pads(uart6_pads, ARRAY_SIZE(uart6_pads));
}

#ifdef CONFIG_FSL_ESDHC
static struct fsl_esdhc_cfg usdhc_cfg[2] = {
#ifdef CONFIG_SYS_USE_NAND
   { USDHC1_BASE_ADDR, 0, 4 },
#else
   { USDHC1_BASE_ADDR, 0, 8 }, /* 8-bit emmc */
#endif /* CONFIG_SYS_USE_NAND */
};

#define USDHC1_CD_GPIO  IMX_GPIO_NR(1, 19)

int mmc_get_env_devno(void)
{
	u32 soc_sbmr = readl(SRC_BASE_ADDR + 0x4);
	int dev_no;
	u32 bootsel;

	bootsel = (soc_sbmr & 0x000000FF) >> 6 ;

	/* If not boot from sd/mmc, use default value */
	if (bootsel != 1)
		return CONFIG_SYS_MMC_ENV_DEV;

	/* BOOT_CFG2[3] and BOOT_CFG2[4] */
	dev_no = (soc_sbmr & 0x00001800) >> 11;

	return dev_no;
}

int mmc_map_to_kernel_blk(int dev_no)
{
	return dev_no;
}

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 USDHC1_BASE_ADDR:
#ifdef CONFIG_SYS_USE_NAND
       ret = !gpio_get_value(USDHC1_CD_GPIO);
#else
       ret = 1;
#endif
		break;
	}

	return ret;

}

int board_mmc_init(bd_t *bis)
{
	int i, ret;

	/*
	 * According to the board_mmc_init() the following map is done:
	 * (U-boot device node)    (Physical Port)
	 * mmc0                    USDHC1
	 */
	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
		switch (i) {
		case 0:
			imx_iomux_v3_setup_multiple_pads(
				usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
			usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
			break;
		default:
			printf("Warning: you configured more USDHC controllers"
				"(%d) than supported by the board\n", i + 1);
			return -EINVAL;
			}

			ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
			if (ret) {
				printf("Warning: failed to initialize mmc dev %d\n", i);
				return ret;
			}
	}

	return 0;
}

int check_mmc_autodetect(void)
{
	char *autodetect_str = getenv("mmcautodetect");

	if ((autodetect_str != NULL) &&
		(strcmp(autodetect_str, "yes") == 0)) {
		return 1;
	}

	return 0;
}

void board_late_mmc_init(void)
{
	char cmd[32];
	char mmcblk[32];
	u32 dev_no = mmc_get_env_devno();

	if (!check_mmc_autodetect())
		return;

	setenv_ulong("mmcdev", dev_no);

	/* Set mmcblk env */
	sprintf(mmcblk, "/dev/mmcblk%dp2 rootwait rw",
		mmc_map_to_kernel_blk(dev_no));
	setenv("mmcroot", mmcblk);

	sprintf(cmd, "mmc dev %d", dev_no);
	run_command(cmd, 0);
}
#endif

#ifdef CONFIG_VIDEO_MXS
static iomux_v3_cfg_t const lcd_pads[] = {
	MX6_PAD_LCD_CLK__LCDIF_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_ENABLE__LCDIF_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_HSYNC__LCDIF_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_VSYNC__LCDIF_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA00__LCDIF_DATA00 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA01__LCDIF_DATA01 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA02__LCDIF_DATA02 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA03__LCDIF_DATA03 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA04__LCDIF_DATA04 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA05__LCDIF_DATA05 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA06__LCDIF_DATA06 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA07__LCDIF_DATA07 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA08__LCDIF_DATA08 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA09__LCDIF_DATA09 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA10__LCDIF_DATA10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA11__LCDIF_DATA11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA12__LCDIF_DATA12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA13__LCDIF_DATA13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA14__LCDIF_DATA14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA15__LCDIF_DATA15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA16__LCDIF_DATA16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA17__LCDIF_DATA17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA18__LCDIF_DATA18 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA19__LCDIF_DATA19 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA20__LCDIF_DATA20 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA21__LCDIF_DATA21 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA22__LCDIF_DATA22 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD_DATA23__LCDIF_DATA23 | MUX_PAD_CTRL(LCD_PAD_CTRL),

	/* LCD_RST */
	MX6_PAD_SNVS_TAMPER9__GPIO5_IO09	| MUX_PAD_CTRL(NO_PAD_CTRL),

	/*
	 * Use GPIO for Brightness adjustment, duty cycle = period.
	 */
	MX6_PAD_GPIO1_IO08__GPIO1_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

struct lcd_panel_info_t {
	unsigned int lcdif_base_addr;
	int depth;
	void (*enable)(struct lcd_panel_info_t const *dev);
	struct fb_videomode mode;
};

void do_enable_parallel_lcd(struct lcd_panel_info_t const *dev)
{
	enable_lcdif_clock(dev->lcdif_base_addr);

	imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));

	/* Reset the LCD */
	gpio_direction_output(IMX_GPIO_NR(5, 9) , 0);
	udelay(500);
	gpio_direction_output(IMX_GPIO_NR(5, 9) , 1);

	/* Set Brightness to high */
	gpio_direction_output(IMX_GPIO_NR(1, 8) , 1);
}

static struct lcd_panel_info_t const displays[] = {{
	.lcdif_base_addr = LCDIF1_BASE_ADDR,
	.depth = 24,
	.enable	= do_enable_parallel_lcd,
	.mode	= {
		.name			= "TFT43AB",
		.xres           = 480,
		.yres           = 272,
		.pixclock       = 108695,
		.left_margin    = 8,
		.right_margin   = 4,
		.upper_margin   = 2,
		.lower_margin   = 4,
		.hsync_len      = 41,
		.vsync_len      = 10,
		.sync           = 0,
		.vmode          = FB_VMODE_NONINTERLACED
} } };

int board_video_skip(void)
{
	int i;
	int ret;
	char const *panel = getenv("panel");
	if (!panel) {
		panel = displays[0].mode.name;
		printf("No panel detected: default to %s\n", panel);
		i = 0;
	} else {
		for (i = 0; i < ARRAY_SIZE(displays); i++) {
			if (!strcmp(panel, displays[i].mode.name))
				break;
		}
	}
	if (i < ARRAY_SIZE(displays)) {
		ret = mxs_lcd_panel_setup(displays[i].mode, displays[i].depth,
				    displays[i].lcdif_base_addr);
		if (!ret) {
			if (displays[i].enable)
				displays[i].enable(displays+i);
			printf("Display: %s (%ux%u)\n",
			       displays[i].mode.name,
			       displays[i].mode.xres,
			       displays[i].mode.yres);
		} else
			printf("LCD %s cannot be configured: %d\n",
			       displays[i].mode.name, ret);
	} else {
		printf("unsupported panel %s\n", panel);
		return -EINVAL;
	}

	return 0;
}
#endif

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

	setup_iomux_fec(CONFIG_FEC_ENET_DEV);

	gpio_direction_output(RMII_PHY_RESET, 0);
	udelay(500);
	gpio_direction_output(RMII_PHY_RESET, 1);

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

	return 0;
}

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

	if (0 == fec_id) {
		/* Use 50M anatop loopback REF_CLK1 for ENET1, clear gpr1[13], set gpr1[17]*/
		clrsetbits_le32(&iomuxc_gpr_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
				IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
	} else {
		/* Use 50M anatop loopback REF_CLK2 for ENET2, clear gpr1[14], set gpr1[18]*/
		clrsetbits_le32(&iomuxc_gpr_regs->gpr[1], IOMUX_GPR1_FEC2_MASK,
				IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
	}

	ret = enable_fec_anatop_clock(fec_id, ENET_50MHZ);
	if (ret)
		return ret;

	enable_enet_clk(1);

	return 0;
}

int board_phy_config(struct phy_device *phydev)
{

	phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x8190);

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

	return 0;
}
#endif

#ifdef CONFIG_USB_EHCI_MX6
#define USB_OTHERREGS_OFFSET	0x800
#define UCTRL_PWR_POL		(1 << 9)

static iomux_v3_cfg_t const usb_otg_pads[] = {
	MX6_PAD_GPIO1_IO00__ANATOP_OTG1_ID | MUX_PAD_CTRL(OTG_ID_PAD_CTRL),
};

/* At default the 3v3 enables the MIC2026 for VBUS power */
static void setup_usb(void)
{
	imx_iomux_v3_setup_multiple_pads(usb_otg_pads,
					 ARRAY_SIZE(usb_otg_pads));
}

int board_usb_phy_mode(int port)
{
	if (port == 1)
		return USB_INIT_HOST;
	else
		return usb_phy_mode(port);
}

int board_ehci_hcd_init(int port)
{
	u32 *usbnc_usb_ctrl;

	if (port > 1)
		return -EINVAL;

	usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET +
				 port * 4);

	/* Set Power polarity */
	setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL);

	return 0;
}
#endif

int board_early_init_f(void)
{
	setup_iomux_uart();

	return 0;
}

#ifdef CONFIG_POWER
#define I2C_PMIC	0
static struct pmic *pfuze;
int power_init_board(void)
{
	int ret;
	unsigned int reg, rev_id;

	ret = power_pfuze300_init(I2C_PMIC);
	if (ret)
		return ret;

	pfuze = pmic_get("PFUZE300");
	ret = pmic_probe(pfuze);
	if (ret)
		return ret;

	pmic_reg_read(pfuze, PFUZE300_DEVICEID, &reg);
	pmic_reg_read(pfuze, PFUZE300_REVID, &rev_id);
	printf("PMIC: PFUZE300 DEV_ID=0x%x REV_ID=0x%x\n", reg, rev_id);

	/* disable Low Power Mode during standby mode */
	pmic_reg_read(pfuze, PFUZE300_LDOGCTL, &reg);
	reg |= 0x1;
	pmic_reg_write(pfuze, PFUZE300_LDOGCTL, reg);

	/* SW1B step ramp up time from 2us to 4us/25mV */
	reg = 0x40;
	pmic_reg_write(pfuze, PFUZE300_SW1BCONF, reg);

	/* SW1B mode to APS/PFM */
	reg = 0xc;
	pmic_reg_write(pfuze, PFUZE300_SW1BMODE, reg);

	/* SW1B standby voltage set to 0.975V */
	reg = 0xb;
	pmic_reg_write(pfuze, PFUZE300_SW1BSTBY, reg);

	return 0;
}

#ifdef CONFIG_LDO_BYPASS_CHECK
void ldo_mode_set(int ldo_bypass)
{
	unsigned int value;
	u32 vddarm;

	struct pmic *p = pfuze;

	if (!p) {
		printf("No PMIC found!\n");
		return;
	}

	/* switch to ldo_bypass mode */
	if (ldo_bypass) {
		prep_anatop_bypass();
		/* decrease VDDARM to 1.275V */
		pmic_reg_read(pfuze, PFUZE300_SW1BVOLT, &value);
		value &= ~0x1f;
		value |= PFUZE300_SW1AB_SETP(1275);
		pmic_reg_write(pfuze, PFUZE300_SW1BVOLT, value);

		set_anatop_bypass(1);
		vddarm = PFUZE300_SW1AB_SETP(1175);

		pmic_reg_read(pfuze, PFUZE300_SW1BVOLT, &value);
		value &= ~0x1f;
		value |= vddarm;
		pmic_reg_write(pfuze, PFUZE300_SW1BVOLT, value);

		finish_anatop_bypass();

		printf("switch to ldo_bypass mode!\n");
	}
}
#endif
#endif

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

#ifdef CONFIG_SYS_I2C_MXC
	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
#endif

#ifdef	CONFIG_FEC_MXC
	setup_fec(CONFIG_FEC_ENET_DEV);
#endif

#ifdef CONFIG_SYS_USE_NAND
	setup_gpmi_nand();
#endif

#ifdef CONFIG_USB_EHCI_MX6
	setup_usb();
#endif

	return 0;
}

#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
	/* 4 bit bus width */
	{"sd1", MAKE_CFGVAL(0x42, 0x20, 0x00, 0x00)},
	{"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
	{NULL,	 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_init();
#endif

	set_wdog_reset((struct wdog_regs *)WDOG1_BASE_ADDR);

	return 0;
}

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

void version_detection(void)
{
	setup_iomux_version_detection();
	gpio_direction_input(VERSION_DET_DDR_SIZE);

	if (gpio_get_value(VERSION_DET_DDR_SIZE))
		printf("DRAM size is 512MB \r\n");
	else
		printf("DRAM size is 256MB \r\n");
}

int checkboard(void)
{
	version_detection();
	puts("Board: PicoSOM i.mx6UL\n");

	return 0;
}

#ifdef CONFIG_FSL_FASTBOOT

void board_fastboot_setup(void)
{
	switch (get_boot_device()) {
#if defined(CONFIG_FASTBOOT_STORAGE_MMC)
	case SD1_BOOT:
	case MMC1_BOOT:
		if (!getenv("fastboot_dev"))
			setenv("fastboot_dev", "mmc0");
		if (!getenv("bootcmd"))
			setenv("bootcmd", "boota mmc0");
		break;
	case SD2_BOOT:
	case MMC2_BOOT:
		if (!getenv("fastboot_dev"))
			setenv("fastboot_dev", "mmc1");
		if (!getenv("bootcmd"))
			setenv("bootcmd", "boota mmc1");
		break;
#endif /*CONFIG_FASTBOOT_STORAGE_MMC*/
#if defined(CONFIG_FASTBOOT_STORAGE_NAND)
	case NAND_BOOT:
		if (!getenv("fastboot_dev"))
			setenv("fastboot_dev", "nand");
		if (!getenv("fbparts"))
			setenv("fbparts", ANDROID_FASTBOOT_NAND_PARTS);
		if (!getenv("bootcmd"))
			setenv("bootcmd",
				"nand read ${loadaddr} ${boot_nand_offset} "
				"${boot_nand_size};boota ${loadaddr}");
		break;
#endif /*CONFIG_FASTBOOT_STORAGE_NAND*/

	default:
		printf("unsupported boot devices\n");
		break;
	}
}

#ifdef CONFIG_ANDROID_RECOVERY
int is_recovery_key_pressing(void)
{
	/* No key defined for this board */
	return 0;
}

void board_recovery_setup(void)
{
	int bootdev = get_boot_device();

	switch (bootdev) {
#if defined(CONFIG_FASTBOOT_STORAGE_MMC)
	case SD1_BOOT:
	case MMC1_BOOT:
		if (!getenv("bootcmd_android_recovery"))
			setenv("bootcmd_android_recovery", "boota mmc0 recovery");
		break;
	case SD2_BOOT:
	case MMC2_BOOT:
		if (!getenv("bootcmd_android_recovery"))
			setenv("bootcmd_android_recovery", "boota mmc1 recovery");
		break;
#endif /*CONFIG_FASTBOOT_STORAGE_MMC*/
#if defined(CONFIG_FASTBOOT_STORAGE_NAND)
	case NAND_BOOT:
		if (!getenv("bootcmd_android_recovery"))
			setenv("bootcmd_android_recovery",
				"nand read ${loadaddr} ${recovery_nand_offset} "
				"${recovery_nand_size};boota ${loadaddr}");
		break;
#endif /*CONFIG_FASTBOOT_STORAGE_NAND*/

	default:
		printf("Unsupported bootup device for recovery: dev: %d\n",
			bootdev);
		return;
	}

	printf("setup env for recovery..\n");
	setenv("bootcmd", "run bootcmd_android_recovery");
}
#endif /*CONFIG_ANDROID_RECOVERY*/

#endif /*CONFIG_FSL_FASTBOOT*/