mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
76 lines
1.9 KiB
C
76 lines
1.9 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 <mapmem.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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{
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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 (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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