1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * (C) Copyright 2010 4 * Linaro LTD, www.linaro.org 5 * Author: John Rigby <john.rigby@linaro.org> 6 * Based on TI's signGP.c 7 * 8 * (C) Copyright 2009 9 * Stefano Babic, DENX Software Engineering, sbabic@denx.de. 10 * 11 * (C) Copyright 2008 12 * Marvell Semiconductor <www.marvell.com> 13 * Written-by: Prafulla Wadaskar <prafulla@marvell.com> 14 */ 15 16 #include "imagetool.h" 17 #include <compiler.h> 18 #include <image.h> 19 #include "gpheader.h" 20 #include "omapimage.h" 21 22 #define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) 23 24 /* Header size is CH header rounded up to 512 bytes plus GP header */ 25 #define OMAP_CH_HDR_SIZE 512 26 #define OMAP_FILE_HDR_SIZE (OMAP_CH_HDR_SIZE + GPIMAGE_HDR_SIZE) 27 28 static int do_swap32 = 0; 29 30 static uint8_t omapimage_header[OMAP_FILE_HDR_SIZE]; 31 32 static int omapimage_check_image_types(uint8_t type) 33 { 34 if (type == IH_TYPE_OMAPIMAGE) 35 return EXIT_SUCCESS; 36 return EXIT_FAILURE; 37 } 38 39 static int omapimage_verify_header(unsigned char *ptr, int image_size, 40 struct image_tool_params *params) 41 { 42 struct ch_toc *toc = (struct ch_toc *)ptr; 43 struct gp_header *gph = (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE); 44 uint32_t offset, size; 45 46 while (toc->section_offset != 0xffffffff 47 && toc->section_size != 0xffffffff) { 48 if (do_swap32) { 49 offset = cpu_to_be32(toc->section_offset); 50 size = cpu_to_be32(toc->section_size); 51 } else { 52 offset = toc->section_offset; 53 size = toc->section_size; 54 } 55 if (!offset || !size) 56 return -1; 57 if (offset >= OMAP_CH_HDR_SIZE || 58 offset+size >= OMAP_CH_HDR_SIZE) 59 return -1; 60 toc++; 61 } 62 63 return gph_verify_header(gph, do_swap32); 64 } 65 66 static void omapimage_print_section(struct ch_settings *chs) 67 { 68 const char *section_name; 69 70 if (chs->section_key) 71 section_name = "CHSETTINGS"; 72 else 73 section_name = "UNKNOWNKEY"; 74 75 printf("%s (%x) " 76 "valid:%x " 77 "version:%x " 78 "reserved:%x " 79 "flags:%x\n", 80 section_name, 81 chs->section_key, 82 chs->valid, 83 chs->version, 84 chs->reserved, 85 chs->flags); 86 } 87 88 static void omapimage_print_header(const void *ptr) 89 { 90 const struct ch_toc *toc = (struct ch_toc *)ptr; 91 const struct gp_header *gph = 92 (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE); 93 uint32_t offset, size; 94 95 while (toc->section_offset != 0xffffffff 96 && toc->section_size != 0xffffffff) { 97 if (do_swap32) { 98 offset = cpu_to_be32(toc->section_offset); 99 size = cpu_to_be32(toc->section_size); 100 } else { 101 offset = toc->section_offset; 102 size = toc->section_size; 103 } 104 105 if (offset >= OMAP_CH_HDR_SIZE || 106 offset+size >= OMAP_CH_HDR_SIZE) 107 exit(EXIT_FAILURE); 108 109 printf("Section %s offset %x length %x\n", 110 toc->section_name, 111 toc->section_offset, 112 toc->section_size); 113 114 omapimage_print_section((struct ch_settings *)(ptr+offset)); 115 toc++; 116 } 117 118 gph_print_header(gph, do_swap32); 119 } 120 121 static int toc_offset(void *hdr, void *member) 122 { 123 return member - hdr; 124 } 125 126 static void omapimage_set_header(void *ptr, struct stat *sbuf, int ifd, 127 struct image_tool_params *params) 128 { 129 struct ch_toc *toc = (struct ch_toc *)ptr; 130 struct ch_settings *chs = (struct ch_settings *) 131 (ptr + 2 * sizeof(*toc)); 132 struct gp_header *gph = (struct gp_header *)(ptr + OMAP_CH_HDR_SIZE); 133 134 toc->section_offset = toc_offset(ptr, chs); 135 toc->section_size = sizeof(struct ch_settings); 136 strcpy((char *)toc->section_name, "CHSETTINGS"); 137 138 chs->section_key = KEY_CHSETTINGS; 139 chs->valid = 0; 140 chs->version = 1; 141 chs->reserved = 0; 142 chs->flags = 0; 143 144 toc++; 145 memset(toc, 0xff, sizeof(*toc)); 146 147 gph_set_header(gph, sbuf->st_size - OMAP_CH_HDR_SIZE, 148 params->addr, 0); 149 150 if (strncmp(params->imagename, "byteswap", 8) == 0) { 151 do_swap32 = 1; 152 int swapped = 0; 153 uint32_t *data = (uint32_t *)ptr; 154 const off_t size_in_words = 155 DIV_ROUND_UP(sbuf->st_size, sizeof(uint32_t)); 156 157 while (swapped < size_in_words) { 158 *data = cpu_to_be32(*data); 159 swapped++; 160 data++; 161 } 162 } 163 } 164 165 /* 166 * omapimage parameters 167 */ 168 U_BOOT_IMAGE_TYPE( 169 omapimage, 170 "TI OMAP CH/GP Boot Image support", 171 OMAP_FILE_HDR_SIZE, 172 (void *)&omapimage_header, 173 gpimage_check_params, 174 omapimage_verify_header, 175 omapimage_print_header, 176 omapimage_set_header, 177 NULL, 178 omapimage_check_image_types, 179 NULL, 180 NULL 181 ); 182