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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2019 Western Digital Corporation or its affiliates.
- * Authors:
- * Atish Patra <atish.patra@wdc.com>
- * Based on arm/lib/image.c
- */
- #include <common.h>
- #include <image.h>
- #include <mapmem.h>
- #include <errno.h>
- #include <asm/global_data.h>
- #include <linux/sizes.h>
- #include <linux/stddef.h>
- DECLARE_GLOBAL_DATA_PTR;
- /* ASCII version of "RSC\0x5" defined in Linux kernel */
- #define LINUX_RISCV_IMAGE_MAGIC 0x05435352
- struct linux_image_h {
- uint32_t code0; /* Executable code */
- uint32_t code1; /* Executable code */
- uint64_t text_offset; /* Image load offset */
- uint64_t image_size; /* Effective Image size */
- uint64_t flags; /* kernel flags (little endian) */
- uint32_t version; /* version of the header */
- uint32_t res1; /* reserved */
- uint64_t res2; /* reserved */
- uint64_t res3; /* reserved */
- uint32_t magic; /* Magic number */
- uint32_t res4; /* reserved */
- };
- int booti_setup(ulong image, ulong *relocated_addr, ulong *size,
- bool force_reloc)
- {
- struct linux_image_h *lhdr;
- lhdr = (struct linux_image_h *)map_sysmem(image, 0);
- if (lhdr->magic != LINUX_RISCV_IMAGE_MAGIC) {
- puts("Bad Linux RISCV Image magic!\n");
- return -EINVAL;
- }
- if (lhdr->image_size == 0) {
- puts("Image lacks image_size field, error!\n");
- return -EINVAL;
- }
- *size = lhdr->image_size;
- if (force_reloc ||
- (gd->ram_base <= image && image < gd->ram_base + gd->ram_size)) {
- *relocated_addr = gd->ram_base + lhdr->text_offset;
- } else {
- *relocated_addr = image;
- }
- unmap_sysmem(lhdr);
- return 0;
- }
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