board/freescale/mx7d_12x12_ddr3_arm2/mx7d_12x12_ddr3_arm2.c

/*
 * Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
 * Copyright 2017 NXP
 *
 * 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>

DECLARE_GLOBAL_DATA_PTR;

#define UART_PAD_CTRL  (PAD_CTL_DSE_3P3V_49OHM | \
	PAD_CTL_PUS_PU100KOHM | PAD_CTL_HYS)
#define USDHC_PAD_CTRL (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \
	PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM)
#define SPI_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_SRE_SLOW | PAD_CTL_HYS)

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),
};

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

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

#ifdef CONFIG_FSL_ESDHC
int board_mmc_get_env_dev(int devno)
{
	return devno - 1;
}

int mmc_map_to_kernel_blk(int dev_no)
{
	return dev_no + 1;
}
#endif

#ifdef CONFIG_MXC_SPI
iomux_v3_cfg_t const ecspi1_pads[] = {
	MX7D_PAD_SD1_RESET_B__ECSPI4_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
	MX7D_PAD_SD1_WP__ECSPI4_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
	MX7D_PAD_SD1_CD_B__ECSPI4_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
	/* Chip selects CS0:CS3 */
	MX7D_PAD_SD1_CLK__GPIO5_IO3 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX7D_PAD_SD1_CMD__GPIO5_IO4 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX7D_PAD_SD1_DATA0__GPIO5_IO5 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX7D_PAD_SD1_DATA1__GPIO5_IO6 | 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(5, 3), "ecspi1_cs");
	gpio_direction_output(IMX_GPIO_NR(5, 3), 0);
}

int board_spi_cs_gpio(unsigned bus, unsigned cs)
{
	return (bus == 3 && cs == 0) ? (IMX_GPIO_NR(5, 3)) : -1;
}
#endif

int board_early_init_f(void)
{
	setup_iomux_uart();

	return 0;
}

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

#ifdef CONFIG_MXC_SPI
	setup_spinor();
#endif

	return 0;
}

#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
	/* 4 bit bus width */
	{"emmc", MAKE_CFGVAL(0x10, 0x22, 0x00, 0x00)},
	{"sd3", MAKE_CFGVAL(0x10, 0x1a, 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);

	/* 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 DDR3 ARM2\n");

	return 0;
}