// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2016 Freescale Semiconductor, Inc.
 * Copyright 2017 NXP
 */

#include <init.h>
#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/global_data.h>
#include <asm/gpio.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <asm/io.h>
#include <common.h>
#include <env.h>
#include <fsl_esdhc_imx.h>
#include <i2c.h>
#include <miiphy.h>
#include <linux/sizes.h>
#include <linux/delay.h>
#include <mmc.h>
#include <miiphy.h>
#include <power/pmic.h>
#include <power/pfuze3000_pmic.h>
#include "../common/pfuze.h"

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 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)


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

	ret = pmic_get("pfuze3000@8", &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);

	/* SW1B step ramp up time from 2us to 4us/25mV */
	pmic_reg_write(dev, PFUZE3000_SW1BCONF, 0x40);

	/* SW1B mode to APS/PFM */
	pmic_reg_write(dev, PFUZE3000_SW1BMODE, 0xc);

	/* SW1B standby voltage set to 0.975V */
	pmic_reg_write(dev, PFUZE3000_SW1BSTBY, 0xb);

	return 0;
}

#ifdef CONFIG_LDO_BYPASS_CHECK
void ldo_mode_set(int ldo_bypass)
{
	unsigned int value;
	u32 vddarm;
	struct udevice *dev;
	int ret;

	ret = pmic_get("pfuze3000@8", &dev);
	if (ret == -ENODEV) {
		printf("No PMIC found!\n");
		return;
	}

	/* switch to ldo_bypass mode */
	if (ldo_bypass) {
		prep_anatop_bypass();
		/* decrease VDDARM to 1.275V */
		value = pmic_reg_read(dev, PFUZE3000_SW1BVOLT);
		value &= ~0x1f;
		value |= PFUZE3000_SW1AB_SETP(12750);
		pmic_reg_write(dev, PFUZE3000_SW1BVOLT, value);

		set_anatop_bypass(1);
		vddarm = PFUZE3000_SW1AB_SETP(11750);

		value = pmic_reg_read(dev, PFUZE3000_SW1BVOLT);
		value &= ~0x1f;
		value |= vddarm;
		pmic_reg_write(dev, PFUZE3000_SW1BVOLT, value);

		finish_anatop_bypass();

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

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

	return 0;
}

static iomux_v3_cfg_t const uart1_pads[] = {
	MX6_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
	MX6_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
};

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
#define QSPI_PAD_CTRL1	\
	(PAD_CTL_SRE_FAST | PAD_CTL_SPEED_MED | \
	 PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_120ohm)

static iomux_v3_cfg_t const quadspi_pads[] = {
	MX6_PAD_NAND_WP_B__QSPI_A_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_READY_B__QSPI_A_DATA00 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_CE0_B__QSPI_A_DATA01 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_CE1_B__QSPI_A_DATA02 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_CLE__QSPI_A_DATA03 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_DQS__QSPI_A_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
};
#endif

static 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 */
	enable_qspi_clk(0);

	return 0;
}
#endif

#ifdef CONFIG_NAND_MXS
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));

	setup_gpmi_io_clk((MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
			MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) |
			MXC_CCM_CS2CDR_ENFC_CLK_SEL(3)));

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

#ifdef CONFIG_FEC_MXC
static int setup_fec(void)
{
	struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
	int ret;

	/*
	 * Use 50M anatop loopback REF_CLK1 for ENET1,
	 * clear gpr1[13], set gpr1[17].
	 */
	clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
			IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
	/*
	 * Use 50M anatop loopback REF_CLK2 for ENET2,
	 * clear gpr1[14], set gpr1[18].
	 */
	if (!check_module_fused(MODULE_ENET2)) {
		clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK,
				IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
	}

	ret = enable_fec_anatop_clock(0, ENET_50MHZ);
	if (ret)
		return ret;

	if (!check_module_fused(MODULE_ENET2)) {
		ret = enable_fec_anatop_clock(1, 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_DM_VIDEO
static iomux_v3_cfg_t const lcd_pads[] = {
	/* Use GPIO for Brightness adjustment, duty cycle = period. */
	MX6_PAD_GPIO1_IO08__GPIO1_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static int setup_lcd(void)
{
	enable_lcdif_clock(LCDIF1_BASE_ADDR, 1);

	imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));

	/* Reset the LCD */
	gpio_request(IMX_GPIO_NR(5, 9), "lcd reset");
	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_request(IMX_GPIO_NR(1, 8), "backlight");
	gpio_direction_output(IMX_GPIO_NR(1, 8) , 1);

	return 0;
}
#else
static inline int setup_lcd(void) { return 0; }
#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_FEC_MXC
	setup_fec();
#endif

#ifdef CONFIG_FSL_QSPI
	board_qspi_init();
#endif

#ifdef CONFIG_NAND_MXS
	setup_gpmi_nand();
#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)},
	{"qspi1", MAKE_CFGVAL(0x10, 0x00, 0x00, 0x00)},
	{NULL,	 0},
};
#endif

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

	env_set("tee", "no");
#ifdef CONFIG_IMX_OPTEE
	env_set("tee", "yes");
#endif

#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
	env_set("board_name", "EVK");

	if (is_mx6ull_9x9_evk())
		env_set("board_rev", "9X9");
	else
		env_set("board_rev", "14X14");

	if (is_cpu_type(MXC_CPU_MX6ULZ)) {
		env_set("board_name", "ULZ-EVK");
		env_set("usb_net_cmd", "usb start");
    }
#endif

	setup_lcd();

#ifdef CONFIG_ENV_IS_IN_MMC
	board_late_mmc_env_init();
#endif

	set_wdog_reset((struct wdog_regs *)WDOG1_BASE_ADDR);

	return 0;
}

int checkboard(void)
{
	if (is_mx6ull_9x9_evk())
		puts("Board: MX6ULL 9x9 EVK\n");
	else if (is_cpu_type(MXC_CPU_MX6ULZ))
		puts("Board: MX6ULZ 14x14 EVK\n");
	else
		puts("Board: MX6ULL 14x14 EVK\n");

	return 0;
}

void board_quiesce_devices(void)
{
#if defined(CONFIG_VIDEO_MXS)
	enable_lcdif_clock(LCDIF1_BASE_ADDR, 0);
#endif
}
