u-boot/arch/arm/cpu/armv8/fsl-layerscape/spl.c

/*
 * Copyright 2014-2015 Freescale Semiconductor, Inc.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <spl.h>
#include <asm/io.h>
#include <fsl_ifc.h>
#include <fsl_csu.h>
#include <i2c.h>

DECLARE_GLOBAL_DATA_PTR;

u32 spl_boot_device(void)
{
#ifdef CONFIG_SPL_MMC_SUPPORT
	return BOOT_DEVICE_MMC1;
#endif
#ifdef CONFIG_SPL_NAND_SUPPORT
	return BOOT_DEVICE_NAND;
#endif
	return 0;
}

u32 spl_boot_mode(void)
{
	switch (spl_boot_device()) {
	case BOOT_DEVICE_MMC1:
#ifdef CONFIG_SPL_FAT_SUPPORT
		return MMCSD_MODE_FAT;
#else
		return MMCSD_MODE_RAW;
#endif
	case BOOT_DEVICE_NAND:
		return 0;
	default:
		puts("spl: error: unsupported device\n");
		hang();
	}
}

#ifdef CONFIG_SPL_BUILD
void board_init_f(ulong dummy)
{
	/* Clear global data */
	memset((void *)gd, 0, sizeof(gd_t));
#if defined(CONFIG_LS2080A) || defined(CONFIG_LS2085A)
	arch_cpu_init();
#endif
#ifdef CONFIG_FSL_IFC
	init_early_memctl_regs();
#endif
	board_early_init_f();
	timer_init();
#if defined(CONFIG_LS2080A) || defined(CONFIG_LS2085A)
	env_init();
#endif
	get_clocks();

	preloader_console_init();

#ifdef CONFIG_SPL_I2C_SUPPORT
	i2c_init_all();
#endif
	dram_init();

	/* Clear the BSS */
	memset(__bss_start, 0, __bss_end - __bss_start);

#ifdef CONFIG_LAYERSCAPE_NS_ACCESS
	enable_layerscape_ns_access();
#endif
	board_init_r(NULL, 0);
}
#endif