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/*
* (C) Copyright 2017 Heiko Stuebner <heiko@sntech.de>
*
* SPDX-License-Identifier: GPL-2.0
*/
#ifndef _ASM_ARCH_BOOTROM_H
#define _ASM_ARCH_BOOTROM_H
/*
* Saved Stack pointer address.
* Access might be needed in some special cases.
*/
extern u32 SAVE_SP_ADDR;
/**
* Hand control back to the bootrom to load another
* boot stage.
*/
void back_to_bootrom(void);
/**
* Assembler component for the above (do not call this directly)
*/
void _back_to_bootrom_s(void);
/**
* Boot-device identifiers as used by the BROM
*/
enum {
BROM_BOOTSOURCE_NAND = 1,
BROM_BOOTSOURCE_EMMC = 2,
BROM_BOOTSOURCE_SPINOR = 3,
BROM_BOOTSOURCE_SPINAND = 4,
BROM_BOOTSOURCE_SD = 5,
BROM_BOOTSOURCE_USB = 10,
BROM_LAST_BOOTSOURCE = BROM_BOOTSOURCE_USB
};
/**
* Locations of the boot-device identifier in SRAM
*/
#define RK3399_BROM_BOOTSOURCE_ID_ADDR 0xff8c0010
#endif
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