1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2019 Western Digital Corporation or its affiliates. 4 * Authors: 5 * Atish Patra <atish.patra@wdc.com> 6 * Based on arm/lib/image.c 7 */ 8 9 #include <common.h> 10 #include <mapmem.h> 11 #include <errno.h> 12 #include <linux/sizes.h> 13 #include <linux/stddef.h> 14 15 DECLARE_GLOBAL_DATA_PTR; 16 17 /* ASCII version of "RSC\0x5" defined in Linux kernel */ 18 #define LINUX_RISCV_IMAGE_MAGIC 0x05435352 19 20 struct linux_image_h { 21 uint32_t code0; /* Executable code */ 22 uint32_t code1; /* Executable code */ 23 uint64_t text_offset; /* Image load offset */ 24 uint64_t image_size; /* Effective Image size */ 25 uint64_t flags; /* kernel flags (little endian) */ 26 uint32_t version; /* version of the header */ 27 uint32_t res1; /* reserved */ 28 uint64_t res2; /* reserved */ 29 uint64_t res3; /* reserved */ 30 uint32_t magic; /* Magic number */ 31 uint32_t res4; /* reserved */ 32 }; 33 booti_setup(ulong image,ulong * relocated_addr,ulong * size,bool force_reloc)34int booti_setup(ulong image, ulong *relocated_addr, ulong *size, 35 bool force_reloc) 36 { 37 struct linux_image_h *lhdr; 38 39 lhdr = (struct linux_image_h *)map_sysmem(image, 0); 40 41 if (lhdr->magic != LINUX_RISCV_IMAGE_MAGIC) { 42 puts("Bad Linux RISCV Image magic!\n"); 43 return -EINVAL; 44 } 45 46 if (lhdr->image_size == 0) { 47 puts("Image lacks image_size field, error!\n"); 48 return -EINVAL; 49 } 50 *size = lhdr->image_size; 51 *relocated_addr = gd->ram_base + lhdr->text_offset; 52 53 unmap_sysmem(lhdr); 54 55 return 0; 56 } 57