board/samsung/common/board.c - platform/external/u-boot - Gitiles

 /*
  * (C) Copyright 2013 SAMSUNG Electronics
  * Rajeshwari Shinde <rajeshwari.s@samsung.com>
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */

 #include <common.h>
 #include <cros_ec.h>
 #include <errno.h>
 #include <fdtdec.h>
 #include <spi.h>
 #include <tmu.h>
 #include <netdev.h>
 #include <asm/io.h>
 #include <asm/arch/board.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/dwmmc.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/mmc.h>
 #include <asm/arch/pinmux.h>
 #include <asm/arch/power.h>
 #include <power/pmic.h>
 #include <asm/arch/sromc.h>
 #include <power/max77686_pmic.h>

 DECLARE_GLOBAL_DATA_PTR;

 #if defined CONFIG_EXYNOS_TMU
 /* Boot Time Thermal Analysis for SoC temperature threshold breach */
 static void boot_temp_check(void)
 {
 	int temp;

 	switch (tmu_monitor(&temp)) {
 	case TMU_STATUS_NORMAL:
 		break;
 	case TMU_STATUS_TRIPPED:
 		/*
 		 * Status TRIPPED ans WARNING means corresponding threshold
 		 * breach
 		 */
 		puts("EXYNOS_TMU: TRIPPING! Device power going down ...\n");
 		set_ps_hold_ctrl();
 		hang();
 		break;
 	case TMU_STATUS_WARNING:
 		puts("EXYNOS_TMU: WARNING! Temperature very high\n");
 		break;
 	case TMU_STATUS_INIT:
 		/*
 		 * TMU_STATUS_INIT means something is wrong with temperature
 		 * sensing and TMU status was changed back from NORMAL to INIT.
 		 */
 		puts("EXYNOS_TMU: WARNING! Temperature sensing not done\n");
 		break;
 	default:
 		debug("EXYNOS_TMU: Unknown TMU state\n");
 	}
 }
 #endif

 int board_init(void)
 {
 	gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
 #if defined CONFIG_EXYNOS_TMU
 	if (tmu_init(gd->fdt_blob) != TMU_STATUS_NORMAL) {
 		debug("%s: Failed to init TMU\n", __func__);
 		return -1;
 	}
 	boot_temp_check();
 #endif

 #ifdef CONFIG_EXYNOS_SPI
 	spi_init();
 #endif
 	return exynos_init();
 }

 int dram_init(void)
 {
 	int i;
 	u32 addr;

 	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
 		addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
 		gd->ram_size += get_ram_size((long *)addr, SDRAM_BANK_SIZE);
 	}
 	return 0;
 }

 void dram_init_banksize(void)
 {
 	int i;
 	u32 addr, size;

 	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
 		addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
 		size = get_ram_size((long *)addr, SDRAM_BANK_SIZE);

 		gd->bd->bi_dram[i].start = addr;
 		gd->bd->bi_dram[i].size = size;
 	}
 }

 static int board_uart_init(void)
 {
 	int err, uart_id, ret = 0;

 	for (uart_id = PERIPH_ID_UART0; uart_id <= PERIPH_ID_UART3; uart_id++) {
 		err = exynos_pinmux_config(uart_id, PINMUX_FLAG_NONE);
 		if (err) {
 			debug("UART%d not configured\n",
 			      (uart_id - PERIPH_ID_UART0));
 			ret |= err;
 		}
 	}
 	return ret;
 }

 #ifdef CONFIG_BOARD_EARLY_INIT_F
 int board_early_init_f(void)
 {
 	int err;

 	err = board_uart_init();
 	if (err) {
 		debug("UART init failed\n");
 		return err;
 	}

 #ifdef CONFIG_SYS_I2C_INIT_BOARD
 	board_i2c_init(gd->fdt_blob);
 #endif

 	return err;
 }
 #endif

 #if defined(CONFIG_POWER)
 #ifdef CONFIG_POWER_MAX77686
 static int pmic_reg_update(struct pmic *p, int reg, uint regval)
 {
 	u32 val;
 	int ret = 0;

 	ret = pmic_reg_read(p, reg, &val);
 	if (ret) {
 		debug("%s: PMIC %d register read failed\n", __func__, reg);
 		return -1;
 	}
 	val |= regval;
 	ret = pmic_reg_write(p, reg, val);
 	if (ret) {
 		debug("%s: PMIC %d register write failed\n", __func__, reg);
 		return -1;
 	}
 	return 0;
 }

 static int max77686_init(void)
 {
 	struct pmic *p;

 	if (pmic_init(I2C_PMIC))
 		return -1;

 	p = pmic_get("MAX77686_PMIC");
 	if (!p)
 		return -ENODEV;

 	if (pmic_probe(p))
 		return -1;

 	if (pmic_reg_update(p, MAX77686_REG_PMIC_32KHZ, MAX77686_32KHCP_EN))
 		return -1;

 	if (pmic_reg_update(p, MAX77686_REG_PMIC_BBAT,
 			    MAX77686_BBCHOSTEN | MAX77686_BBCVS_3_5V))
 		return -1;

 	/* VDD_MIF */
 	if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK1OUT,
 			   MAX77686_BUCK1OUT_1V)) {
 		debug("%s: PMIC %d register write failed\n", __func__,
 		      MAX77686_REG_PMIC_BUCK1OUT);
 		return -1;
 	}

 	if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK1CRTL,
 			    MAX77686_BUCK1CTRL_EN))
 		return -1;

 	/* VDD_ARM */
 	if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK2DVS1,
 			   MAX77686_BUCK2DVS1_1_3V)) {
 		debug("%s: PMIC %d register write failed\n", __func__,
 		      MAX77686_REG_PMIC_BUCK2DVS1);
 		return -1;
 	}

 	if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK2CTRL1,
 			    MAX77686_BUCK2CTRL_ON))
 		return -1;

 	/* VDD_INT */
 	if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK3DVS1,
 			   MAX77686_BUCK3DVS1_1_0125V)) {
 		debug("%s: PMIC %d register write failed\n", __func__,
 		      MAX77686_REG_PMIC_BUCK3DVS1);
 		return -1;
 	}

 	if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK3CTRL,
 			    MAX77686_BUCK3CTRL_ON))
 		return -1;

 	/* VDD_G3D */
 	if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK4DVS1,
 			   MAX77686_BUCK4DVS1_1_2V)) {
 		debug("%s: PMIC %d register write failed\n", __func__,
 		      MAX77686_REG_PMIC_BUCK4DVS1);
 		return -1;
 	}

 	if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK4CTRL1,
 			    MAX77686_BUCK3CTRL_ON))
 		return -1;

 	/* VDD_LDO2 */
 	if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO2CTRL1,
 			    MAX77686_LD02CTRL1_1_5V | EN_LDO))
 		return -1;

 	/* VDD_LDO3 */
 	if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO3CTRL1,
 			    MAX77686_LD03CTRL1_1_8V | EN_LDO))
 		return -1;

 	/* VDD_LDO5 */
 	if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO5CTRL1,
 			    MAX77686_LD05CTRL1_1_8V | EN_LDO))
 		return -1;

 	/* VDD_LDO10 */
 	if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO10CTRL1,
 			    MAX77686_LD10CTRL1_1_8V | EN_LDO))
 		return -1;

 	return 0;
 }
 #endif

 int power_init_board(void)
 {
 	int ret = 0;

 	set_ps_hold_ctrl();

 #ifdef CONFIG_POWER_MAX77686
 	ret = max77686_init();
 #endif

 	return ret;
 }
 #endif

 #ifdef CONFIG_OF_CONTROL
 static int decode_sromc(const void *blob, struct fdt_sromc *config)
 {
 	int err;
 	int node;

 	node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS5_SROMC);
 	if (node < 0) {
 		debug("Could not find SROMC node\n");
 		return node;
 	}

 	config->bank = fdtdec_get_int(blob, node, "bank", 0);
 	config->width = fdtdec_get_int(blob, node, "width", 2);

 	err = fdtdec_get_int_array(blob, node, "srom-timing", config->timing,
 			FDT_SROM_TIMING_COUNT);
 	if (err < 0) {
 		debug("Could not decode SROMC configuration Error: %s\n",
 		      fdt_strerror(err));
 		return -FDT_ERR_NOTFOUND;
 	}
 	return 0;
 }

 int board_eth_init(bd_t *bis)
 {
 #ifdef CONFIG_SMC911X
 	u32 smc_bw_conf, smc_bc_conf;
 	struct fdt_sromc config;
 	fdt_addr_t base_addr;
 	int node;

 	node = decode_sromc(gd->fdt_blob, &config);
 	if (node < 0) {
 		debug("%s: Could not find sromc configuration\n", __func__);
 		return 0;
 	}
 	node = fdtdec_next_compatible(gd->fdt_blob, node, COMPAT_SMSC_LAN9215);
 	if (node < 0) {
 		debug("%s: Could not find lan9215 configuration\n", __func__);
 		return 0;
 	}

 	/* We now have a node, so any problems from now on are errors */
 	base_addr = fdtdec_get_addr(gd->fdt_blob, node, "reg");
 	if (base_addr == FDT_ADDR_T_NONE) {
 		debug("%s: Could not find lan9215 address\n", __func__);
 		return -1;
 	}

 	/* Ethernet needs data bus width of 16 bits */
 	if (config.width != 2) {
 		debug("%s: Unsupported bus width %d\n", __func__,
 		      config.width);
 		return -1;
 	}
 	smc_bw_conf = SROMC_DATA16_WIDTH(config.bank)
 			| SROMC_BYTE_ENABLE(config.bank);

 	smc_bc_conf = SROMC_BC_TACS(config.timing[FDT_SROM_TACS])   |
 			SROMC_BC_TCOS(config.timing[FDT_SROM_TCOS]) |
 			SROMC_BC_TACC(config.timing[FDT_SROM_TACC]) |
 			SROMC_BC_TCOH(config.timing[FDT_SROM_TCOH]) |
 			SROMC_BC_TAH(config.timing[FDT_SROM_TAH])   |
 			SROMC_BC_TACP(config.timing[FDT_SROM_TACP]) |
 			SROMC_BC_PMC(config.timing[FDT_SROM_PMC]);

 	/* Select and configure the SROMC bank */
 	exynos_pinmux_config(PERIPH_ID_SROMC, config.bank);
 	s5p_config_sromc(config.bank, smc_bw_conf, smc_bc_conf);
 	return smc911x_initialize(0, base_addr);
 #endif
 	return 0;
 }

 #ifdef CONFIG_GENERIC_MMC
 int board_mmc_init(bd_t *bis)
 {
 	int ret;

 	/* dwmmc initializattion for available channels */
 	ret = exynos_dwmmc_init(gd->fdt_blob);
 	if (ret)
 		debug("dwmmc init failed\n");

 	return ret;
 }
 #endif
 #endif

 #ifdef CONFIG_BOARD_LATE_INIT
 int board_late_init(void)
 {
 	stdio_print_current_devices();

 	if (cros_ec_get_error()) {
 		/* Force console on */
 		gd->flags &= ~GD_FLG_SILENT;

 		printf("cros-ec communications failure %d\n",
 		       cros_ec_get_error());
 		puts("\nPlease reset with Power+Refresh\n\n");
 		panic("Cannot init cros-ec device");
 		return -1;
 	}
 	return 0;
 }
 #endif

 int arch_early_init_r(void)
 {
 #ifdef CONFIG_CROS_EC
 	if (cros_ec_board_init()) {
 		printf("%s: Failed to init EC\n", __func__);
 		return 0;
 	}
 #endif

 	return 0;
 }
	/*
	* (C) Copyright 2013 SAMSUNG Electronics
	* Rajeshwari Shinde <rajeshwari.s@samsung.com>
	*
	* SPDX-License-Identifier: GPL-2.0+
	*/

	#include <common.h>
	#include <cros_ec.h>
	#include <errno.h>
	#include <fdtdec.h>
	#include <spi.h>
	#include <tmu.h>
	#include <netdev.h>
	#include <asm/io.h>
	#include <asm/arch/board.h>
	#include <asm/arch/cpu.h>
	#include <asm/arch/dwmmc.h>
	#include <asm/arch/gpio.h>
	#include <asm/arch/mmc.h>
	#include <asm/arch/pinmux.h>
	#include <asm/arch/power.h>
	#include <power/pmic.h>
	#include <asm/arch/sromc.h>
	#include <power/max77686_pmic.h>

	DECLARE_GLOBAL_DATA_PTR;

	#if defined CONFIG_EXYNOS_TMU
	/* Boot Time Thermal Analysis for SoC temperature threshold breach */
	static void boot_temp_check(void)
	{
	int temp;

	switch (tmu_monitor(&temp)) {
	case TMU_STATUS_NORMAL:
	break;
	case TMU_STATUS_TRIPPED:
	/*
	* Status TRIPPED ans WARNING means corresponding threshold
	* breach
	*/
	puts("EXYNOS_TMU: TRIPPING! Device power going down ...\n");
	set_ps_hold_ctrl();
	hang();
	break;
	case TMU_STATUS_WARNING:
	puts("EXYNOS_TMU: WARNING! Temperature very high\n");
	break;
	case TMU_STATUS_INIT:
	/*
	* TMU_STATUS_INIT means something is wrong with temperature
	* sensing and TMU status was changed back from NORMAL to INIT.
	*/
	puts("EXYNOS_TMU: WARNING! Temperature sensing not done\n");
	break;
	default:
	debug("EXYNOS_TMU: Unknown TMU state\n");
	}
	}
	#endif

	int board_init(void)
	{
	gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
	#if defined CONFIG_EXYNOS_TMU
	if (tmu_init(gd->fdt_blob) != TMU_STATUS_NORMAL) {
	debug("%s: Failed to init TMU\n", __func__);
	return -1;
	}
	boot_temp_check();
	#endif

	#ifdef CONFIG_EXYNOS_SPI
	spi_init();
	#endif
	return exynos_init();
	}

	int dram_init(void)
	{
	int i;
	u32 addr;

	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
	addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
	gd->ram_size += get_ram_size((long *)addr, SDRAM_BANK_SIZE);
	}
	return 0;
	}

	void dram_init_banksize(void)
	{
	int i;
	u32 addr, size;

	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
	addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
	size = get_ram_size((long *)addr, SDRAM_BANK_SIZE);

	gd->bd->bi_dram[i].start = addr;
	gd->bd->bi_dram[i].size = size;
	}
	}

	static int board_uart_init(void)
	{
	int err, uart_id, ret = 0;

	for (uart_id = PERIPH_ID_UART0; uart_id <= PERIPH_ID_UART3; uart_id++) {
	err = exynos_pinmux_config(uart_id, PINMUX_FLAG_NONE);
	if (err) {
	debug("UART%d not configured\n",
	(uart_id - PERIPH_ID_UART0));
	ret \|= err;
	}
	}
	return ret;
	}

	#ifdef CONFIG_BOARD_EARLY_INIT_F
	int board_early_init_f(void)
	{
	int err;

	err = board_uart_init();
	if (err) {
	debug("UART init failed\n");
	return err;
	}

	#ifdef CONFIG_SYS_I2C_INIT_BOARD
	board_i2c_init(gd->fdt_blob);
	#endif

	return err;
	}
	#endif

	#if defined(CONFIG_POWER)
	#ifdef CONFIG_POWER_MAX77686
	static int pmic_reg_update(struct pmic *p, int reg, uint regval)
	{
	u32 val;
	int ret = 0;

	ret = pmic_reg_read(p, reg, &val);
	if (ret) {
	debug("%s: PMIC %d register read failed\n", __func__, reg);
	return -1;
	}
	val \|= regval;
	ret = pmic_reg_write(p, reg, val);
	if (ret) {
	debug("%s: PMIC %d register write failed\n", __func__, reg);
	return -1;
	}
	return 0;
	}

	static int max77686_init(void)
	{
	struct pmic *p;

	if (pmic_init(I2C_PMIC))
	return -1;

	p = pmic_get("MAX77686_PMIC");
	if (!p)
	return -ENODEV;

	if (pmic_probe(p))
	return -1;

	if (pmic_reg_update(p, MAX77686_REG_PMIC_32KHZ, MAX77686_32KHCP_EN))
	return -1;

	if (pmic_reg_update(p, MAX77686_REG_PMIC_BBAT,
	MAX77686_BBCHOSTEN \| MAX77686_BBCVS_3_5V))
	return -1;

	/* VDD_MIF */
	if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK1OUT,
	MAX77686_BUCK1OUT_1V)) {
	debug("%s: PMIC %d register write failed\n", __func__,
	MAX77686_REG_PMIC_BUCK1OUT);
	return -1;
	}

	if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK1CRTL,
	MAX77686_BUCK1CTRL_EN))
	return -1;

	/* VDD_ARM */
	if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK2DVS1,
	MAX77686_BUCK2DVS1_1_3V)) {
	debug("%s: PMIC %d register write failed\n", __func__,
	MAX77686_REG_PMIC_BUCK2DVS1);
	return -1;
	}

	if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK2CTRL1,
	MAX77686_BUCK2CTRL_ON))
	return -1;

	/* VDD_INT */
	if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK3DVS1,
	MAX77686_BUCK3DVS1_1_0125V)) {
	debug("%s: PMIC %d register write failed\n", __func__,
	MAX77686_REG_PMIC_BUCK3DVS1);
	return -1;
	}

	if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK3CTRL,
	MAX77686_BUCK3CTRL_ON))
	return -1;

	/* VDD_G3D */
	if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK4DVS1,
	MAX77686_BUCK4DVS1_1_2V)) {
	debug("%s: PMIC %d register write failed\n", __func__,
	MAX77686_REG_PMIC_BUCK4DVS1);
	return -1;
	}

	if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK4CTRL1,
	MAX77686_BUCK3CTRL_ON))
	return -1;

	/* VDD_LDO2 */
	if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO2CTRL1,
	MAX77686_LD02CTRL1_1_5V \| EN_LDO))
	return -1;

	/* VDD_LDO3 */
	if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO3CTRL1,
	MAX77686_LD03CTRL1_1_8V \| EN_LDO))
	return -1;

	/* VDD_LDO5 */
	if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO5CTRL1,
	MAX77686_LD05CTRL1_1_8V \| EN_LDO))
	return -1;

	/* VDD_LDO10 */
	if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO10CTRL1,
	MAX77686_LD10CTRL1_1_8V \| EN_LDO))
	return -1;

	return 0;
	}
	#endif

	int power_init_board(void)
	{
	int ret = 0;

	set_ps_hold_ctrl();

	#ifdef CONFIG_POWER_MAX77686
	ret = max77686_init();
	#endif

	return ret;
	}
	#endif

	#ifdef CONFIG_OF_CONTROL
	static int decode_sromc(const void blob, struct fdt_sromc config)
	{
	int err;
	int node;

	node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS5_SROMC);
	if (node < 0) {
	debug("Could not find SROMC node\n");
	return node;
	}

	config->bank = fdtdec_get_int(blob, node, "bank", 0);
	config->width = fdtdec_get_int(blob, node, "width", 2);

	err = fdtdec_get_int_array(blob, node, "srom-timing", config->timing,
	FDT_SROM_TIMING_COUNT);
	if (err < 0) {
	debug("Could not decode SROMC configuration Error: %s\n",
	fdt_strerror(err));
	return -FDT_ERR_NOTFOUND;
	}
	return 0;
	}

	int board_eth_init(bd_t *bis)
	{
	#ifdef CONFIG_SMC911X
	u32 smc_bw_conf, smc_bc_conf;
	struct fdt_sromc config;
	fdt_addr_t base_addr;
	int node;

	node = decode_sromc(gd->fdt_blob, &config);
	if (node < 0) {
	debug("%s: Could not find sromc configuration\n", __func__);
	return 0;
	}
	node = fdtdec_next_compatible(gd->fdt_blob, node, COMPAT_SMSC_LAN9215);
	if (node < 0) {
	debug("%s: Could not find lan9215 configuration\n", __func__);
	return 0;
	}

	/* We now have a node, so any problems from now on are errors */
	base_addr = fdtdec_get_addr(gd->fdt_blob, node, "reg");
	if (base_addr == FDT_ADDR_T_NONE) {
	debug("%s: Could not find lan9215 address\n", __func__);
	return -1;
	}

	/* Ethernet needs data bus width of 16 bits */
	if (config.width != 2) {
	debug("%s: Unsupported bus width %d\n", __func__,
	config.width);
	return -1;
	}
	smc_bw_conf = SROMC_DATA16_WIDTH(config.bank)
	\| SROMC_BYTE_ENABLE(config.bank);

	smc_bc_conf = SROMC_BC_TACS(config.timing[FDT_SROM_TACS]) \|
	SROMC_BC_TCOS(config.timing[FDT_SROM_TCOS]) \|
	SROMC_BC_TACC(config.timing[FDT_SROM_TACC]) \|
	SROMC_BC_TCOH(config.timing[FDT_SROM_TCOH]) \|
	SROMC_BC_TAH(config.timing[FDT_SROM_TAH]) \|
	SROMC_BC_TACP(config.timing[FDT_SROM_TACP]) \|
	SROMC_BC_PMC(config.timing[FDT_SROM_PMC]);

	/* Select and configure the SROMC bank */
	exynos_pinmux_config(PERIPH_ID_SROMC, config.bank);
	s5p_config_sromc(config.bank, smc_bw_conf, smc_bc_conf);
	return smc911x_initialize(0, base_addr);
	#endif
	return 0;
	}

	#ifdef CONFIG_GENERIC_MMC
	int board_mmc_init(bd_t *bis)
	{
	int ret;

	/* dwmmc initializattion for available channels */
	ret = exynos_dwmmc_init(gd->fdt_blob);
	if (ret)
	debug("dwmmc init failed\n");

	return ret;
	}
	#endif
	#endif

	#ifdef CONFIG_BOARD_LATE_INIT
	int board_late_init(void)
	{
	stdio_print_current_devices();

	if (cros_ec_get_error()) {
	/* Force console on */
	gd->flags &= ~GD_FLG_SILENT;

	printf("cros-ec communications failure %d\n",
	cros_ec_get_error());
	puts("\nPlease reset with Power+Refresh\n\n");
	panic("Cannot init cros-ec device");
	return -1;
	}
	return 0;
	}
	#endif

	int arch_early_init_r(void)
	{
	#ifdef CONFIG_CROS_EC
	if (cros_ec_board_init()) {
	printf("%s: Failed to init EC\n", __func__);
	return 0;
	}
	#endif

	return 0;
	}