board/aristainetos/aristainetos.c

/*
 * (C) Copyright 2014
 * Heiko Schocher, DENX Software Engineering, hs@denx.de.
 *
 * Based on:
 * Copyright (C) 2012 Freescale Semiconductor, Inc.
 *
 * Author: Fabio Estevam <fabio.estevam@freescale.com>
 *
 * 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/iomux-v3.h>
#include <asm/imx-common/boot_mode.h>
#include <asm/imx-common/mxc_i2c.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 <linux/fb.h>
#include <ipu_pixfmt.h>
#include <asm/io.h>
#include <asm/arch/sys_proto.h>
#include <pwm.h>

DECLARE_GLOBAL_DATA_PTR;

#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 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 PC MUX_PAD_CTRL(I2C_PAD_CTRL)

#define DISP_PAD_CTRL	(0x10)

#define ECSPI4_CS1		IMX_GPIO_NR(5, 2)

struct i2c_pads_info i2c_pad_info1 = {
	.scl = {
		.i2c_mode = MX6_PAD_CSI0_DAT9__I2C1_SCL | PC,
		.gpio_mode = MX6_PAD_CSI0_DAT9__GPIO5_IO27 | PC,
		.gp = IMX_GPIO_NR(5, 27)
	},
	.sda = {
		.i2c_mode = MX6_PAD_CSI0_DAT8__I2C1_SDA | PC,
		.gpio_mode = MX6_PAD_CSI0_DAT8__GPIO5_IO26 | PC,
		.gp = IMX_GPIO_NR(5, 26)
	}
};

struct i2c_pads_info i2c_pad_info2 = {
	.scl = {
		.i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | PC,
		.gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12 | PC,
		.gp = IMX_GPIO_NR(4, 12)
	},
	.sda = {
		.i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | PC,
		.gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | PC,
		.gp = IMX_GPIO_NR(4, 13)
	}
};

struct i2c_pads_info i2c_pad_info3 = {
	.scl = {
		.i2c_mode = MX6_PAD_EIM_D17__I2C3_SCL | PC,
		.gpio_mode = MX6_PAD_EIM_D17__GPIO3_IO17 | PC,
		.gp = IMX_GPIO_NR(3, 17)
	},
	.sda = {
		.i2c_mode = MX6_PAD_EIM_D18__I2C3_SDA | PC,
		.gpio_mode = MX6_PAD_EIM_D18__GPIO3_IO18 | PC,
		.gp = IMX_GPIO_NR(3, 18)
	}
};

int dram_init(void)
{
	gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);

	return 0;
}

iomux_v3_cfg_t const uart1_pads[] = {
	MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
	MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
};

iomux_v3_cfg_t const uart5_pads[] = {
	MX6_PAD_CSI0_DAT14__UART5_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
	MX6_PAD_CSI0_DAT15__UART5_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
};

iomux_v3_cfg_t const gpio_pads[] = {
	/* LED enable */
	MX6_PAD_SD4_DAT5__GPIO2_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL),
	/* spi flash WP protect */
	MX6_PAD_SD4_DAT7__GPIO2_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
	/* backlight enable */
	MX6_PAD_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL),
	/* LED yellow */
	MX6_PAD_GPIO_3__GPIO1_IO03 | MUX_PAD_CTRL(NO_PAD_CTRL),
	/* LED red */
	MX6_PAD_GPIO_4__GPIO1_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL),
	/* LED green */
	MX6_PAD_GPIO_5__GPIO1_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL),
	/* LED blue */
	MX6_PAD_GPIO_6__GPIO1_IO06 | MUX_PAD_CTRL(NO_PAD_CTRL),
	/* i2c4 scl */
	MX6_PAD_GPIO_7__GPIO1_IO07 | MUX_PAD_CTRL(NO_PAD_CTRL),
	/* i2c4 sda */
	MX6_PAD_GPIO_8__GPIO1_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL),
	/* spi CS 1 */
	MX6_PAD_EIM_A25__GPIO5_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static iomux_v3_cfg_t const misc_pads[] = {
	MX6_PAD_GPIO_1__USB_OTG_ID		| MUX_PAD_CTRL(NO_PAD_CTRL),
	/* OTG Power enable */
	MX6_PAD_EIM_D31__GPIO3_IO31		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_KEY_ROW4__GPIO4_IO15		| MUX_PAD_CTRL(NO_PAD_CTRL),
};

iomux_v3_cfg_t const enet_pads[] = {
	MX6_PAD_GPIO_16__ENET_REF_CLK	| MUX_PAD_CTRL(0x4001b0a8),
	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_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_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),
	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_ENET_CRS_DV__ENET_RX_EN	| MUX_PAD_CTRL(ENET_PAD_CTRL),
};

static void setup_iomux_enet(void)
{
	struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;

	imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));

	/* set GPIO_16 as ENET_REF_CLK_OUT */
	setbits_le32(&iomux->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
}

iomux_v3_cfg_t const usdhc1_pads[] = {
	MX6_PAD_SD1_CLK__SD1_CLK	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_CMD__SD1_CMD	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_DAT0__SD1_DATA0	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_DAT1__SD1_DATA1	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_DAT2__SD1_DATA2	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_DAT3__SD1_DATA3	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
};

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),
};

iomux_v3_cfg_t const ecspi4_pads[] = {
	MX6_PAD_EIM_D21__ECSPI4_SCLK | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_EIM_D22__ECSPI4_MISO | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_EIM_D28__ECSPI4_MOSI | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_EIM_D20__GPIO3_IO20 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static iomux_v3_cfg_t const display_pads[] = {
	MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK | MUX_PAD_CTRL(DISP_PAD_CTRL),
	MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15,
	MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02,
	MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03,
	MX6_PAD_DI0_PIN4__GPIO4_IO20,
	MX6_PAD_DISP0_DAT0__IPU1_DISP0_DATA00,
	MX6_PAD_DISP0_DAT1__IPU1_DISP0_DATA01,
	MX6_PAD_DISP0_DAT2__IPU1_DISP0_DATA02,
	MX6_PAD_DISP0_DAT3__IPU1_DISP0_DATA03,
	MX6_PAD_DISP0_DAT4__IPU1_DISP0_DATA04,
	MX6_PAD_DISP0_DAT5__IPU1_DISP0_DATA05,
	MX6_PAD_DISP0_DAT6__IPU1_DISP0_DATA06,
	MX6_PAD_DISP0_DAT7__IPU1_DISP0_DATA07,
	MX6_PAD_DISP0_DAT8__IPU1_DISP0_DATA08,
	MX6_PAD_DISP0_DAT9__IPU1_DISP0_DATA09,
	MX6_PAD_DISP0_DAT10__IPU1_DISP0_DATA10,
	MX6_PAD_DISP0_DAT11__IPU1_DISP0_DATA11,
	MX6_PAD_DISP0_DAT12__IPU1_DISP0_DATA12,
	MX6_PAD_DISP0_DAT13__IPU1_DISP0_DATA13,
	MX6_PAD_DISP0_DAT14__IPU1_DISP0_DATA14,
	MX6_PAD_DISP0_DAT15__IPU1_DISP0_DATA15,
	MX6_PAD_DISP0_DAT16__IPU1_DISP0_DATA16,
	MX6_PAD_DISP0_DAT17__IPU1_DISP0_DATA17,
	MX6_PAD_DISP0_DAT18__IPU1_DISP0_DATA18,
	MX6_PAD_DISP0_DAT19__IPU1_DISP0_DATA19,
	MX6_PAD_DISP0_DAT20__IPU1_DISP0_DATA20,
	MX6_PAD_DISP0_DAT21__IPU1_DISP0_DATA21,
	MX6_PAD_DISP0_DAT22__IPU1_DISP0_DATA22,
	MX6_PAD_DISP0_DAT23__IPU1_DISP0_DATA23,
};

static iomux_v3_cfg_t const backlight_pads[] = {
	MX6_PAD_GPIO_9__PWM1_OUT | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_SD4_DAT1__PWM3_OUT | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_GPIO_2__GPIO1_IO02 | 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)
{
	int i;

	imx_iomux_v3_setup_multiple_pads(ecspi4_pads, ARRAY_SIZE(ecspi4_pads));
	for (i = 0; i < 3; i++)
		enable_spi_clk(true, i);

	/* set cs1 to high */
	gpio_direction_output(ECSPI4_CS1, 1);
}

static void setup_iomux_gpio(void)
{
	imx_iomux_v3_setup_multiple_pads(gpio_pads, ARRAY_SIZE(gpio_pads));
}

static void setup_iomux_uart(void)
{
	imx_iomux_v3_setup_multiple_pads(uart5_pads, ARRAY_SIZE(uart5_pads));
}

#ifdef CONFIG_FSL_ESDHC
struct fsl_esdhc_cfg usdhc_cfg[2] = {
	{USDHC1_BASE_ADDR},
	{USDHC2_BASE_ADDR},
};

int board_mmc_getcd(struct mmc *mmc)
{
	return 1;
}

int board_mmc_init(bd_t *bis)
{
	usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
	usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);

	imx_iomux_v3_setup_multiple_pads(usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
	imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));

	return fsl_esdhc_initialize(bis, &usdhc_cfg[0]) |
		fsl_esdhc_initialize(bis, &usdhc_cfg[1]);
}
#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)
{
	struct iomuxc *iomuxc_regs =
				(struct iomuxc *)IOMUXC_BASE_ADDR;
	int ret;

	setup_iomux_enet();
	/* clear gpr1[14], gpr1[18:17] to select anatop clock */
	clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC_MASK, 0);

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

	return cpu_eth_init(bis);
}
#if defined(CONFIG_VIDEO_IPUV3)

static void enable_lvds(struct display_info_t const *dev)
{
	imx_iomux_v3_setup_multiple_pads(
		display_pads,
		 ARRAY_SIZE(display_pads));
	imx_iomux_v3_setup_multiple_pads(
		backlight_pads,
		 ARRAY_SIZE(backlight_pads));

	/* enable backlight PWM 3 */
	if (pwm_init(2, 0, 0))
		goto error;
	/* duty cycle 500ns, period: 3000ns */
	if (pwm_config(2, 500, 3000))
		goto error;
	if (pwm_enable(2))
		goto error;
	return;

error:
	puts("error init pwm for backlight\n");
	return;
}

struct display_info_t const displays[] = {
	{
		.bus	= -1,
		.addr	= 0,
		.pixfmt	= IPU_PIX_FMT_RGB24,
		.detect	= NULL,
		.enable	= enable_lvds,
		.mode	= {
			.name           = "lb07wv8",
			.refresh        = 60,
			.xres           = 800,
			.yres           = 480,
			.pixclock       = 33246,
			.left_margin    = 88,
			.right_margin   = 88,
			.upper_margin   = 10,
			.lower_margin   = 10,
			.hsync_len      = 80,
			.vsync_len      = 25,
			.sync           = 0,
			.vmode          = FB_VMODE_NONINTERLACED
		}
	}
};
size_t display_count = ARRAY_SIZE(displays);

static void setup_display(void)
{
	struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
	int reg;

	enable_ipu_clock();

	reg = readl(&mxc_ccm->cs2cdr);
	/* select pll 5 clock */
	reg &= MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK;
	reg &= MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK;
	writel(reg, &mxc_ccm->cs2cdr);

	imx_iomux_v3_setup_multiple_pads(backlight_pads,
					 ARRAY_SIZE(backlight_pads));
}

/* no console on this board */
int board_cfb_skip(void)
{
	return 1;
}
#endif

int board_early_init_f(void)
{
	setup_iomux_uart();
	setup_iomux_gpio();

#if defined(CONFIG_VIDEO_IPUV3)
	setup_display();
#endif
	return 0;
}

iomux_v3_cfg_t nfc_pads[] = {
	MX6_PAD_NANDF_CLE__NAND_CLE		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_ALE__NAND_ALE		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_WP_B__NAND_WP_B	| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_RB0__NAND_READY_B	| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_CS0__NAND_CE0_B		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_CS1__NAND_CE1_B		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_CS2__NAND_CE2_B		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_CS3__NAND_CE3_B		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_SD4_CMD__NAND_RE_B		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_SD4_CLK__NAND_WE_B		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_D0__NAND_DATA00		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_D1__NAND_DATA01		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_D2__NAND_DATA02		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_D3__NAND_DATA03		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_D4__NAND_DATA04		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_D5__NAND_DATA05		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_D6__NAND_DATA06		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_NANDF_D7__NAND_DATA07		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_SD4_DAT0__NAND_DQS		| MUX_PAD_CTRL(NO_PAD_CTRL),
};

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(nfc_pads,
					 ARRAY_SIZE(nfc_pads));

	/* config gpmi and bch clock to 100 MHz */
	clrsetbits_le32(&mxc_ccm->cs2cdr,
			MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK |
			MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK |
			MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK,
			MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
			MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) |
			MXC_CCM_CS2CDR_ENFC_CLK_SEL(3));

	/* 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_OFFSET);

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

int board_init(void)
{
	struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;

	/* address of boot parameters */
	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;

	setup_spi();

	setup_i2c(0, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE,
		  &i2c_pad_info1);
	setup_i2c(1, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE,
		  &i2c_pad_info2);
	setup_i2c(2, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE,
		  &i2c_pad_info3);

	/* i2c4 not used, set it to gpio input */
	gpio_request(IMX_GPIO_NR(1, 7), "i2c4_scl");
	gpio_direction_input(IMX_GPIO_NR(1, 7));
	gpio_request(IMX_GPIO_NR(1, 8), "i2c4_sda");
	gpio_direction_input(IMX_GPIO_NR(1, 8));

	/* SPI NOR Flash read only */
	gpio_request(CONFIG_GPIO_ENABLE_SPI_FLASH, "ena_spi_nor");
	gpio_direction_output(CONFIG_GPIO_ENABLE_SPI_FLASH, 0);
	gpio_free(CONFIG_GPIO_ENABLE_SPI_FLASH);

	/* enable LED */
	gpio_request(IMX_GPIO_NR(2, 13), "LED ena");
	gpio_direction_output(IMX_GPIO_NR(2, 13), 0);

	gpio_request(IMX_GPIO_NR(1, 3), "LED yellow");
	gpio_direction_output(IMX_GPIO_NR(1, 3), 1);
	gpio_request(IMX_GPIO_NR(1, 4), "LED red");
	gpio_direction_output(IMX_GPIO_NR(1, 4), 1);
	gpio_request(IMX_GPIO_NR(1, 5), "LED green");
	gpio_direction_output(IMX_GPIO_NR(1, 5), 1);
	gpio_request(IMX_GPIO_NR(1, 6), "LED blue");
	gpio_direction_output(IMX_GPIO_NR(1, 6), 1);

	setup_gpmi_nand();

	/* GPIO_1 for USB_OTG_ID */
	setbits_le32(&iomux->gpr[1], IOMUXC_GPR1_USB_OTG_ID_SEL_MASK);
	imx_iomux_v3_setup_multiple_pads(misc_pads, ARRAY_SIZE(misc_pads));

	return 0;
}

int checkboard(void)
{
	puts("Board: aristaitenos\n");
	return 0;
}

#ifdef CONFIG_USB_EHCI_MX6
int board_ehci_hcd_init(int port)
{
	int ret;

	ret = gpio_request(ARISTAINETOS_USB_H1_PWR, "usb-h1-pwr");
	if (!ret)
		gpio_direction_output(ARISTAINETOS_USB_H1_PWR, 1);
	ret = gpio_request(ARISTAINETOS_USB_OTG_PWR, "usb-OTG-pwr");
	if (!ret)
		gpio_direction_output(ARISTAINETOS_USB_OTG_PWR, 1);
	return 0;
}

int board_ehci_power(int port, int on)
{
	if (port)
		gpio_set_value(ARISTAINETOS_USB_OTG_PWR, on);
	else
		gpio_set_value(ARISTAINETOS_USB_H1_PWR, on);
	return 0;
}
#endif