u-boot/arch/arm/include/asm/spl.h
Lokesh Vutla e00646099f arm: K3: am654: Add support for boot device detection
AM654 allows for booting from primary or backup boot media.
Both media can be chosen individually based on switch settings.
ROM looks for a valid image in primary boot media, if not found
then looks in backup boot media. In order to pass this boot media
information to boot loader, ROM stores a value at a particular
address. Add support for reading this information and determining
the boot media correctly.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-09-11 08:32:55 -04:00

44 lines
819 B
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2012
* Texas Instruments, <www.ti.com>
*/
#ifndef _ASM_SPL_H_
#define _ASM_SPL_H_
#if defined(CONFIG_ARCH_OMAP2PLUS) \
|| defined(CONFIG_EXYNOS4) || defined(CONFIG_EXYNOS5) \
|| defined(CONFIG_EXYNOS4210) || defined(CONFIG_ARCH_K3)
/* Platform-specific defines */
#include <asm/arch/spl.h>
#else
enum {
BOOT_DEVICE_RAM,
BOOT_DEVICE_MMC1,
BOOT_DEVICE_MMC2,
BOOT_DEVICE_MMC2_2,
BOOT_DEVICE_NAND,
BOOT_DEVICE_ONENAND,
BOOT_DEVICE_NOR,
BOOT_DEVICE_UART,
BOOT_DEVICE_SPI,
BOOT_DEVICE_USB,
BOOT_DEVICE_SATA,
BOOT_DEVICE_I2C,
BOOT_DEVICE_BOARD,
BOOT_DEVICE_DFU,
BOOT_DEVICE_XIP,
BOOT_DEVICE_BOOTROM,
BOOT_DEVICE_NONE
};
#endif
/* Linker symbols. */
extern char __bss_start[], __bss_end[];
#ifndef CONFIG_DM
extern gd_t gdata;
#endif
#endif