mirror of
https://github.com/AsahiLinux/u-boot
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41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
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/* SPDX-License-Identifier: GPL-2.0+
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*
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* NSIH (Nexell System Information Header) for FriendlyArm nanopi2 board
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*
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* The NSIH (first 512 Bytes of u-boot.bin) is necessary for the
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* 2nd-Bootloader to get information like load address of U-Boot.
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*
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* 0x400 must be added to CONFIG_SYS_TEXT_BASE to have the actual load and
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* start address because 2nd-Bootloader loads with an offset of 0x400
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* (NSIH + 0x200 bytes are not loaded into RAM).
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*
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* It has been tested / is working with the following 2nd-Bootloader:
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* "BL1 by Nexell V1.0.0-gd551e13 [Built on 2018-01-25 16:58:29]"
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*
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* (C) Copyright 2020 Stefan Bosch <stefan_b@posteo.net>
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*/
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#ifndef __BOOT0_H
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#define __BOOT0_H
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ARM_VECTORS
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.space 0x30
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.word (_end - _start) + 20 * 1024 /* 0x50: load size
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* (bin + 20k for DTB) */
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.space 0x4
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.word CONFIG_SYS_TEXT_BASE + 0x400 /* 0x58: load address */
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.word 0x00000000
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.word CONFIG_SYS_TEXT_BASE + 0x400 /* 0x60: start address */
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.space 0x198
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.byte 'N' /* 0x1FC: "NSIH" signature */
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.byte 'S'
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.byte 'I'
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.byte 'H'
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/* The NSIH + 0x200 bytes are omitted by the 2nd-Bootloader */
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.space 0x200
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_start:
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ARM_VECTORS
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#endif /* __BOOT0_H */
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