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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2000-2009
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#include <common.h>
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#include <image.h>
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#include <mapmem.h>
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#include <asm/global_data.h>
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#include <linux/bitops.h>
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#include <linux/sizes.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define LINUX_ARM64_IMAGE_MAGIC 0x644d5241
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/* See Documentation/arm64/booting.txt in the Linux kernel */
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struct Image_header {
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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, LE */
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uint64_t image_size; /* Effective Image size, LE */
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uint64_t flags; /* Kernel flags, LE */
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uint64_t res2; /* reserved */
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uint64_t res3; /* reserved */
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uint64_t res4; /* reserved */
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uint32_t magic; /* Magic number */
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uint32_t res5;
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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 Image_header *ih;
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uint64_t dst;
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uint64_t image_size, text_offset;
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*relocated_addr = image;
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ih = (struct Image_header *)map_sysmem(image, 0);
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if (ih->magic != le32_to_cpu(LINUX_ARM64_IMAGE_MAGIC)) {
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puts("Bad Linux ARM64 Image magic!\n");
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return 1;
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}
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/*
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* Prior to Linux commit a2c1d73b94ed, the text_offset field
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* is of unknown endianness. In these cases, the image_size
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* field is zero, and we can assume a fixed value of 0x80000.
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*/
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if (ih->image_size == 0) {
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puts("Image lacks image_size field, assuming 16MiB\n");
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image_size = 16 << 20;
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text_offset = 0x80000;
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} else {
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image_size = le64_to_cpu(ih->image_size);
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text_offset = le64_to_cpu(ih->text_offset);
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}
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*size = image_size;
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/*
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* If bit 3 of the flags field is set, the 2MB aligned base of the
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* kernel image can be anywhere in physical memory, so respect
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* images->ep. Otherwise, relocate the image to the base of RAM
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* since memory below it is not accessible via the linear mapping.
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*/
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if (!force_reloc && (le64_to_cpu(ih->flags) & BIT(3)))
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dst = image - text_offset;
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else
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dst = gd->bd->bi_dram[0].start;
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*relocated_addr = ALIGN(dst, SZ_2M) + text_offset;
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unmap_sysmem(ih);
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return 0;
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}
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