mirror of
https://github.com/brain-hackers/u-boot-brain
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70d64a4c76
The released Linux boot image header in v5.3 is different from the one present in U-Boot. Align the header with the new version. The changes in Linux are backward compatible. Previous U-Boot releases with older header will continue to work as well. As v5.3 kernel is the first one to support image header, there is no compatibility issue between new U-Boot (with this patch) and older kernel. Signed-off-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Rick Chen <rick@andestech.com>
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2019 Western Digital Corporation or its affiliates.
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* Authors:
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* Atish Patra <atish.patra@wdc.com>
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* Based on arm/lib/image.c
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*/
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#include <common.h>
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#include <mapmem.h>
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#include <errno.h>
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#include <linux/sizes.h>
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#include <linux/stddef.h>
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DECLARE_GLOBAL_DATA_PTR;
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/* ASCII version of "RSC\0x5" defined in Linux kernel */
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#define LINUX_RISCV_IMAGE_MAGIC 0x05435352
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struct linux_image_h {
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uint32_t code0; /* Executable code */
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uint32_t code1; /* Executable code */
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uint64_t text_offset; /* Image load offset */
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uint64_t image_size; /* Effective Image size */
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uint64_t flags; /* kernel flags (little endian) */
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uint32_t version; /* version of the header */
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uint32_t res1; /* reserved */
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uint64_t res2; /* reserved */
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uint64_t res3; /* reserved */
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uint32_t magic; /* Magic number */
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uint32_t res4; /* reserved */
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};
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int booti_setup(ulong image, ulong *relocated_addr, ulong *size,
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bool force_reloc)
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{
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struct linux_image_h *lhdr;
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lhdr = (struct linux_image_h *)map_sysmem(image, 0);
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if (lhdr->magic != LINUX_RISCV_IMAGE_MAGIC) {
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puts("Bad Linux RISCV Image magic!\n");
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return -EINVAL;
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}
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if (lhdr->image_size == 0) {
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puts("Image lacks image_size field, error!\n");
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return -EINVAL;
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}
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*size = lhdr->image_size;
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*relocated_addr = gd->ram_base + lhdr->text_offset;
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unmap_sysmem(lhdr);
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return 0;
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}
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