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https://github.com/AsahiLinux/u-boot
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3b4f87735d
The Rockchip BROM allows reading where it booted from from SRAM. This adds the necessary definitions (as received from Kever) for the location of this information in the RK3399's SRAM and naming for the constants used. Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
45 lines
876 B
C
45 lines
876 B
C
/*
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* (C) Copyright 2017 Heiko Stuebner <heiko@sntech.de>
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*
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* SPDX-License-Identifier: GPL-2.0
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*/
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#ifndef _ASM_ARCH_BOOTROM_H
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#define _ASM_ARCH_BOOTROM_H
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/*
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* Saved Stack pointer address.
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* Access might be needed in some special cases.
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*/
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extern u32 SAVE_SP_ADDR;
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/**
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* Hand control back to the bootrom to load another
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* boot stage.
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*/
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void back_to_bootrom(void);
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/**
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* Assembler component for the above (do not call this directly)
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*/
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void _back_to_bootrom_s(void);
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/**
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* Boot-device identifiers as used by the BROM
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*/
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enum {
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BROM_BOOTSOURCE_NAND = 1,
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BROM_BOOTSOURCE_EMMC = 2,
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BROM_BOOTSOURCE_SPINOR = 3,
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BROM_BOOTSOURCE_SPINAND = 4,
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BROM_BOOTSOURCE_SD = 5,
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BROM_BOOTSOURCE_USB = 10,
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BROM_LAST_BOOTSOURCE = BROM_BOOTSOURCE_USB
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};
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/**
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* Locations of the boot-device identifier in SRAM
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*/
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#define RK3399_BROM_BOOTSOURCE_ID_ADDR 0xff8c0010
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#endif
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