pitx-imx8m.c 13 KB
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/*
 * Copyright 2019 Kontron Asia Pacific Design.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <malloc.h>
#include <errno.h>
#include <asm/io.h>
#include <miiphy.h>
#include <netdev.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm-generic/gpio.h>
#include <fsl_esdhc.h>
#include <mmc.h>
#include <asm/arch/imx8mq_pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/mach-imx/gpio.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <asm/arch/clock.h>
#include <asm/mach-imx/video.h>
#include <asm/arch/video_common.h>
#include <spl.h>
#include <power/pmic.h>
#include <power/pfuze100_pmic.h>
#include <dm.h>
#include <usb.h>
#include <dwc3-uboot.h>
#include <i2c.h>
#include <search.h>
#include <environment.h>
#include "../common/emb_eep.h"

extern int EMB_EEP_I2C_EEPROM_BUS_NUM_1;

DECLARE_GLOBAL_DATA_PTR;

#define QSPI_PAD_CTRL	(PAD_CTL_DSE2 | PAD_CTL_HYS)

#define UART_PAD_CTRL	(PAD_CTL_DSE6 | PAD_CTL_FSEL1)

#define WDOG_PAD_CTRL	(PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE)

static iomux_v3_cfg_t const wdog_pads[] = {
	IMX8MQ_PAD_GPIO1_IO02__WDOG1_WDOG_B | MUX_PAD_CTRL(WDOG_PAD_CTRL),
};

#ifdef CONFIG_FSL_QSPI
static iomux_v3_cfg_t const qspi_pads[] = {
	IMX8MQ_PAD_NAND_ALE__QSPI_A_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	IMX8MQ_PAD_NAND_CE0_B__QSPI_A_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL),

	IMX8MQ_PAD_NAND_DATA00__QSPI_A_DATA0 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	IMX8MQ_PAD_NAND_DATA01__QSPI_A_DATA1 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	IMX8MQ_PAD_NAND_DATA02__QSPI_A_DATA2 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
	IMX8MQ_PAD_NAND_DATA03__QSPI_A_DATA3 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
};

int board_qspi_init(void)
{
	imx_iomux_v3_setup_multiple_pads(qspi_pads, ARRAY_SIZE(qspi_pads));

	set_clk_qspi();

	return 0;
}
#endif

static iomux_v3_cfg_t const uart_pads[] = {
	IMX8MQ_PAD_UART3_RXD__UART3_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
	IMX8MQ_PAD_UART3_TXD__UART3_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
};

int board_early_init_f(void)
{
	struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;

	imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));

	set_wdog_reset(wdog);

	imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));

	return 0;
}

#ifdef CONFIG_BOARD_POSTCLK_INIT
int board_postclk_init(void)
{
	/* TODO */
	return 0;
}
#endif

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phys_size_t get_effective_memsize(void)
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{
	/* rom_pointer[1] contains the size of TEE occupies */
	if (rom_pointer[1])
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		return (PHYS_SDRAM_SIZE - rom_pointer[1]);
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	else
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		return PHYS_SDRAM_SIZE;
}

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

#if CONFIG_NR_DRAM_BANKS > 1
	gd->ram_size += PHYS_SDRAM_2_SIZE;
#endif

	return 0;
}

int dram_init_banksize(void)
{
	gd->bd->bi_dram[0].start = PHYS_SDRAM;
	gd->bd->bi_dram[0].size = get_effective_memsize();

#if CONFIG_NR_DRAM_BANKS > 1
	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
	gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
#endif
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	return 0;
}

#ifdef CONFIG_OF_BOARD_SETUP
int ft_board_setup(void *blob, bd_t *bd)
{
	return 0;
}
#endif

/* Get the top of usable RAM */
ulong board_get_usable_ram_top(ulong total_size)
{
        /*printf("board_get_usable_ram_top total_size is 0x%lx \n", total_size);*/

        if(gd->ram_top > 0x100000000)
            gd->ram_top = 0x100000000;

        return gd->ram_top;
}

#ifdef CONFIG_FEC_MXC
#define FEC_RST_PAD IMX_GPIO_NR(1, 11)
static iomux_v3_cfg_t const fec1_rst_pads[] = {
	IMX8MQ_PAD_GPIO1_IO11__GPIO1_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static void setup_iomux_fec(void)
{
	imx_iomux_v3_setup_multiple_pads(fec1_rst_pads,
					 ARRAY_SIZE(fec1_rst_pads));

	// gpio_request(IMX_GPIO_NR(1, 11), "fec1_rst");
	// gpio_direction_output(IMX_GPIO_NR(1, 11), 0);
	// udelay(500);
	// gpio_direction_output(IMX_GPIO_NR(1, 11), 1);
}

static int setup_fec(void)
{
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	struct iomuxc_gpr_base_regs *gpr =
		(struct iomuxc_gpr_base_regs *) IOMUXC_GPR_BASE_ADDR;
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	setup_iomux_fec();

	/* Use 125M anatop REF_CLK1 for ENET1, not from external */
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	clrsetbits_le32(&gpr->gpr[1],
		IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK, 0);
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	return set_clk_enet(ENET_125MHZ);
}


int board_phy_config(struct phy_device *phydev)
{
	/* enable rgmii rxc skew and phy mode select to RGMII copper */
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);

	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);

	if (phydev->drv->config)
		phydev->drv->config(phydev);
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	return 0;
}
#endif

#ifdef CONFIG_USB_DWC3

#define USB_PHY_CTRL0			0xF0040
#define USB_PHY_CTRL0_REF_SSP_EN	BIT(2)

#define USB_PHY_CTRL1			0xF0044
#define USB_PHY_CTRL1_RESET		BIT(0)
#define USB_PHY_CTRL1_COMMONONN		BIT(1)
#define USB_PHY_CTRL1_ATERESET		BIT(3)
#define USB_PHY_CTRL1_VDATSRCENB0	BIT(19)
#define USB_PHY_CTRL1_VDATDETENB0	BIT(20)

#define USB_PHY_CTRL2			0xF0048
#define USB_PHY_CTRL2_TXENABLEN0	BIT(8)

static struct dwc3_device dwc3_device_data = {
#ifdef CONFIG_SPL_BUILD
	.maximum_speed = USB_SPEED_HIGH,
#else
	.maximum_speed = USB_SPEED_SUPER,
#endif
	.base = USB1_BASE_ADDR,
	.dr_mode = USB_DR_MODE_PERIPHERAL,
	.index = 0,
	.power_down_scale = 2,
};

int usb_gadget_handle_interrupts(void)
{
	dwc3_uboot_handle_interrupt(0);
	return 0;
}

static void dwc3_nxp_usb_phy_init(struct dwc3_device *dwc3)
{
	u32 RegData;

	RegData = readl(dwc3->base + USB_PHY_CTRL1);
	RegData &= ~(USB_PHY_CTRL1_VDATSRCENB0 | USB_PHY_CTRL1_VDATDETENB0 |
			USB_PHY_CTRL1_COMMONONN);
	RegData |= USB_PHY_CTRL1_RESET | USB_PHY_CTRL1_ATERESET;
	writel(RegData, dwc3->base + USB_PHY_CTRL1);

	RegData = readl(dwc3->base + USB_PHY_CTRL0);
	RegData |= USB_PHY_CTRL0_REF_SSP_EN;
	writel(RegData, dwc3->base + USB_PHY_CTRL0);

	RegData = readl(dwc3->base + USB_PHY_CTRL2);
	RegData |= USB_PHY_CTRL2_TXENABLEN0;
	writel(RegData, dwc3->base + USB_PHY_CTRL2);

	RegData = readl(dwc3->base + USB_PHY_CTRL1);
	RegData &= ~(USB_PHY_CTRL1_RESET | USB_PHY_CTRL1_ATERESET);
	writel(RegData, dwc3->base + USB_PHY_CTRL1);
}
#endif

#ifdef CONFIG_USB_TCPC
struct tcpc_port port;
struct tcpc_port_config port_config = {
	.i2c_bus = 0,
	.addr = 0x50,
	.port_type = TYPEC_PORT_UFP,
	.max_snk_mv = 20000,
	.max_snk_ma = 3000,
	.max_snk_mw = 15000,
	.op_snk_mv = 9000,
};

#define USB_TYPEC_SEL IMX_GPIO_NR(3, 15)

static iomux_v3_cfg_t ss_mux_gpio[] = {
	IMX8MQ_PAD_NAND_RE_B__GPIO3_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

void ss_mux_select(enum typec_cc_polarity pol)
{
	if (pol == TYPEC_POLARITY_CC1)
		gpio_direction_output(USB_TYPEC_SEL, 1);
	else
		gpio_direction_output(USB_TYPEC_SEL, 0);
}

static int setup_typec(void)
{
	int ret;

	imx_iomux_v3_setup_multiple_pads(ss_mux_gpio, ARRAY_SIZE(ss_mux_gpio));
	gpio_request(USB_TYPEC_SEL, "typec_sel");

	ret = tcpc_init(&port, port_config, &ss_mux_select);
	if (ret) {
		printf("%s: tcpc init failed, err=%d\n",
		       __func__, ret);
	}

	return ret;
}
#endif

#if defined(CONFIG_USB_DWC3) || defined(CONFIG_USB_XHCI_IMX8M)

#define USBHUB_RESET IMX_GPIO_NR(3, 4)

static iomux_v3_cfg_t usbhub_rst[] = {
	IMX8MQ_PAD_NAND_CE3_B__GPIO3_IO4 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

int board_usb_init(int index, enum usb_init_type init)
{
	int ret = 0;
	imx_iomux_v3_setup_multiple_pads(usbhub_rst, ARRAY_SIZE(usbhub_rst));
	gpio_request(USBHUB_RESET, "usbhub_reset");
	imx8m_usb_power(index, true);

	if (index == 0 && init == USB_INIT_DEVICE) {
#ifdef CONFIG_USB_TCPC
		ret = tcpc_setup_ufp_mode(&port);
#endif
		dwc3_nxp_usb_phy_init(&dwc3_device_data);
		return dwc3_uboot_init(&dwc3_device_data);
	} else if (index == 0 && init == USB_INIT_HOST) {
#ifdef CONFIG_USB_TCPC
		ret = tcpc_setup_dfp_mode(&port);
#endif
		return ret;
	}

	return 0;
}

int board_usb_cleanup(int index, enum usb_init_type init)
{
	int ret = 0;
	if (index == 0 && init == USB_INIT_DEVICE) {
		dwc3_uboot_exit(index);
	} else if (index == 0 && init == USB_INIT_HOST) {
#ifdef CONFIG_USB_TCPC
		ret = tcpc_disable_src_vbus(&port);
#endif
	}

	imx8m_usb_power(index, false);

	return ret;
}
#endif

#ifdef CONFIG_CMD_KBOARDINFO
char *getSerNo (void)
{
	ENTRY e;
	static ENTRY *ep;

	e.key = "serial#";
	e.data = NULL;
	hsearch_r (e, FIND, &ep, &env_htab, 0);
	if (ep == NULL)
		return "na";
	else
		return ep->data;
}

/* try to fetch identnumber */
char *getSapId (int eeprom_num)
{
	return (emb_eep_find_string_in_dmi(eeprom_num, 2, 5));
}

char *getManufacturer (int eeprom_num)
{
	return (emb_eep_find_string_in_dmi(eeprom_num, 2, 1));
}

char *getProductName (int eeprom_num)
{
	return (emb_eep_find_string_in_dmi(eeprom_num, 2, 2));
}

char *getManufacturerDate (int eeprom_num)
{
	return (emb_eep_find_string_in_dmi(eeprom_num, 160, 2));
}

char *getRevision (int eeprom_num)
{
	return (emb_eep_find_string_in_dmi(eeprom_num, 2, 3));
}

char *getMacAddress (int eeprom_num, int eth_num)
{
	char *macaddress;

	macaddress = emb_eep_find_mac_in_dmi(eeprom_num, eth_num);
	if (macaddress != NULL)
		return (macaddress);
	else
		return "na";
}

uint64_t getBootCounter (int eeprom_num)
{
	uint64_t bc;
	char *tmp;

	tmp = emb_eep_find_string_in_dmi(eeprom_num, 161, 1);
	if (tmp != NULL) {
		memcpy(&bc, tmp, sizeof(uint64_t));
		return (be64_to_cpu(bc));
	} else
		return (-1ULL);
}
#endif // CONFIG_CMD_KBOARDINFO

int board_init(void)
{
	board_qspi_init();

#ifdef CONFIG_FEC_MXC
	setup_fec();
#endif

#if defined(CONFIG_USB_DWC3) || defined(CONFIG_USB_XHCI_IMX8M)
	init_usb_clk();
#endif

#ifdef CONFIG_USB_TCPC
	setup_typec();
#endif
	return 0;
}

int board_mmc_get_env_dev(int devno)
{
	return devno;
}

static iomux_v3_cfg_t const gpio_pads[] = {
	IMX8MQ_PAD_NAND_CLE__GPIO3_IO5 | MUX_PAD_CTRL(NO_PAD_CTRL),
	IMX8MQ_PAD_NAND_RE_B__GPIO3_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
	IMX8MQ_PAD_NAND_WE_B__GPIO3_IO17 | MUX_PAD_CTRL(NO_PAD_CTRL),
	IMX8MQ_PAD_NAND_WP_B__GPIO3_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL),
	IMX8MQ_PAD_NAND_READY_B__GPIO3_IO16 | MUX_PAD_CTRL(NO_PAD_CTRL),
	IMX8MQ_PAD_NAND_DATA04__GPIO3_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
	IMX8MQ_PAD_NAND_DATA05__GPIO3_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
	IMX8MQ_PAD_NAND_DATA06__GPIO3_IO12 | MUX_PAD_CTRL(NO_PAD_CTRL),
	IMX8MQ_PAD_GPIO1_IO05__GPIO1_IO5 | MUX_PAD_CTRL(NO_PAD_CTRL),
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	IMX8MQ_PAD_GPIO1_IO10__GPIO1_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};

int misc_init_r(void)
{
#ifdef CONFIG_EMB_EEP_SPI
	emb_vpd_init_r();
#endif

#ifdef CONFIG_EMB_EEP_I2C_EEPROM
	EMB_EEP_I2C_EEPROM_BUS_NUM_1 = CONFIG_EMB_EEP_I2C_EEPROM_BUS_NUM_EE1;
	emb_eep_init_r (1, 1, 1); /* import 1 MAC address */
	/*emb_eep_init_r (1, 1, 2); */ /* import 2 MAC address, will try it once the ETH1 UP */
#endif

	imx_iomux_v3_setup_multiple_pads(gpio_pads, ARRAY_SIZE(gpio_pads));

	gpio_request(IMX_GPIO_NR(3, 5), "GPIO0");
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	gpio_direction_output(IMX_GPIO_NR(3,5), 0);	/*GPIO0*/
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	gpio_request(IMX_GPIO_NR(3, 15), "GPIO1");
	gpio_direction_output(IMX_GPIO_NR(3,15), 0);	/*GPIO1*/
	gpio_request(IMX_GPIO_NR(3, 17), "GPIO2");
	gpio_direction_output(IMX_GPIO_NR(3,17), 0);	/*GPIO2*/
	gpio_request(IMX_GPIO_NR(3, 18), "GPIO3");
	gpio_direction_output(IMX_GPIO_NR(3,18), 0);	/*GPIO3*/
	gpio_request(IMX_GPIO_NR(3, 16), "GPIO4");
	gpio_direction_output(IMX_GPIO_NR(3,16), 0);	/*GPIO4*/
	gpio_request(IMX_GPIO_NR(3, 10), "GPIO5");
	gpio_direction_output(IMX_GPIO_NR(3,10), 0);	/*GPIO5*/
	gpio_request(IMX_GPIO_NR(3, 11), "GPIO6");
	gpio_direction_output(IMX_GPIO_NR(3,11), 0);	/*GPIO6*/
	gpio_request(IMX_GPIO_NR(3, 12), "GPIO7");
	gpio_direction_output(IMX_GPIO_NR(3,12), 0);	/*GPIO7*/

	gpio_request(IMX_GPIO_NR(1, 5), "CAM_RST#");
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	gpio_direction_output(IMX_GPIO_NR(1,5), 1);	/*CAM0_RST#*/
	gpio_request(IMX_GPIO_NR(1, 10), "GBE0_PWDN#");
	gpio_direction_output(IMX_GPIO_NR(1,10), 1);	/*GBE0_PWDN*/

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	return 0;
}

int board_late_init(void)
{
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
	env_set("board_name", "PITX-iMX8M");
	env_set("board_rev", "iMX8MQ");
#endif

#ifdef CONFIG_ENV_IS_IN_MMC
	board_late_mmc_env_init();
#endif

	return 0;
}

#ifdef CONFIG_FSL_FASTBOOT
#ifdef CONFIG_ANDROID_RECOVERY
int is_recovery_key_pressing(void)
{
	return 0; /*TODO*/
}
#endif /*CONFIG_ANDROID_RECOVERY*/
#endif /*CONFIG_FSL_FASTBOOT*/

#if defined(CONFIG_VIDEO_IMXDCSS)

struct display_info_t const displays[] = {{
	.bus	= 0, /* Unused */
	.addr	= 0, /* Unused */
	.pixfmt	= GDF_32BIT_X888RGB,
	.detect	= NULL,
	.enable	= NULL,
#ifndef CONFIG_VIDEO_IMXDCSS_1080P
	.mode	= {
		.name           = "HDMI", /* 720P60 */
		.refresh        = 60,
		.xres           = 1280,
		.yres           = 720,
		.pixclock       = 13468, /* 74250  kHz */
		.left_margin    = 110,
		.right_margin   = 220,
		.upper_margin   = 5,
		.lower_margin   = 20,
		.hsync_len      = 40,
		.vsync_len      = 5,
		.sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
		.vmode          = FB_VMODE_NONINTERLACED
	}
#else
	.mode	= {
		.name           = "HDMI", /* 1080P60 */
		.refresh        = 60,
		.xres           = 1920,
		.yres           = 1080,
		.pixclock       = 6734, /* 148500 kHz */
		.left_margin    = 148,
		.right_margin   = 88,
		.upper_margin   = 36,
		.lower_margin   = 4,
		.hsync_len      = 44,
		.vsync_len      = 5,
		.sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
		.vmode          = FB_VMODE_NONINTERLACED
	}
#endif
} };
size_t display_count = ARRAY_SIZE(displays);

#endif /* CONFIG_VIDEO_IMXDCSS */

/* return hard code board id for imx8m_ref */
#if defined(CONFIG_ANDROID_THINGS_SUPPORT) && defined(CONFIG_ARCH_IMX8M)
int get_imx8m_baseboard_id(void)
{
	return IMX8M_REF_3G;
}
#endif