Blame view
cmd/cramfs.c
4.95 KB
d41ce506b Initial Release, ... |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 |
/* * SPDX-License-Identifier: GPL-2.0+ * * based on: cmd_jffs2.c * * Add support for a CRAMFS located in RAM */ /* * CRAMFS support */ #include <common.h> #include <command.h> #include <malloc.h> #include <mapmem.h> #include <linux/list.h> #include <linux/ctype.h> #include <jffs2/jffs2.h> #include <jffs2/load_kernel.h> #include <cramfs/cramfs_fs.h> #include <asm/io.h> /* enable/disable debugging messages */ #define DEBUG_CRAMFS #undef DEBUG_CRAMFS #ifdef DEBUG_CRAMFS # define DEBUGF(fmt, args...) printf(fmt ,##args) #else # define DEBUGF(fmt, args...) #endif #include <flash.h> #ifndef CONFIG_MTD_NOR_FLASH # define OFFSET_ADJUSTMENT 0 #else # define OFFSET_ADJUSTMENT (flash_info[id.num].start[0]) #endif #ifndef CONFIG_FS_JFFS2 #include <linux/stat.h> char *mkmodestr(unsigned long mode, char *str) { static const char *l = "xwr"; int mask = 1, i; char c; switch (mode & S_IFMT) { case S_IFDIR: str[0] = 'd'; break; case S_IFBLK: str[0] = 'b'; break; case S_IFCHR: str[0] = 'c'; break; case S_IFIFO: str[0] = 'f'; break; case S_IFLNK: str[0] = 'l'; break; case S_IFSOCK: str[0] = 's'; break; case S_IFREG: str[0] = '-'; break; default: str[0] = '?'; } for(i = 0; i < 9; i++) { c = l[i%3]; str[9-i] = (mode & mask)?c:'-'; mask = mask<<1; } if(mode & S_ISUID) str[3] = (mode & S_IXUSR)?'s':'S'; if(mode & S_ISGID) str[6] = (mode & S_IXGRP)?'s':'S'; if(mode & S_ISVTX) str[9] = (mode & S_IXOTH)?'t':'T'; str[10] = '\0'; return str; } #endif /* CONFIG_FS_JFFS2 */ extern int cramfs_check (struct part_info *info); extern int cramfs_load (char *loadoffset, struct part_info *info, char *filename); extern int cramfs_ls (struct part_info *info, char *filename); extern int cramfs_info (struct part_info *info); /***************************************************/ /* U-Boot commands */ /***************************************************/ /** * Routine implementing fsload u-boot command. This routine tries to load * a requested file from cramfs filesystem at location 'cramfsaddr'. * cramfsaddr is an evironment variable. * * @param cmdtp command internal data * @param flag command flag * @param argc number of arguments supplied to the command * @param argv arguments list * @return 0 on success, 1 otherwise */ int do_cramfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { char *filename; int size; ulong offset = load_addr; char *offset_virt; struct part_info part; struct mtd_device dev; struct mtdids id; ulong addr; addr = simple_strtoul(env_get("cramfsaddr"), NULL, 16); /* hack! */ /* cramfs_* only supports NOR flash chips */ /* fake the device type */ id.type = MTD_DEV_TYPE_NOR; id.num = 0; dev.id = &id; part.dev = &dev; /* fake the address offset */ part.offset = (u64)(uintptr_t) map_sysmem(addr - OFFSET_ADJUSTMENT, 0); /* pre-set Boot file name */ filename = env_get("bootfile"); if (!filename) filename = "uImage"; if (argc == 2) { filename = argv[1]; } if (argc == 3) { offset = simple_strtoul(argv[1], NULL, 0); load_addr = offset; filename = argv[2]; } offset_virt = map_sysmem(offset, 0); size = 0; if (cramfs_check(&part)) size = cramfs_load (offset_virt, &part, filename); if (size > 0) { printf("### CRAMFS load complete: %d bytes loaded to 0x%lx ", size, offset); env_set_hex("filesize", size); } else { printf("### CRAMFS LOAD ERROR<%x> for %s! ", size, filename); } unmap_sysmem(offset_virt); unmap_sysmem((void *)(uintptr_t)part.offset); return !(size > 0); } /** * Routine implementing u-boot ls command which lists content of a given * directory at location 'cramfsaddr'. * cramfsaddr is an evironment variable. * * @param cmdtp command internal data * @param flag command flag * @param argc number of arguments supplied to the command * @param argv arguments list * @return 0 on success, 1 otherwise */ int do_cramfs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { char *filename = "/"; int ret; struct part_info part; struct mtd_device dev; struct mtdids id; ulong addr; addr = simple_strtoul(env_get("cramfsaddr"), NULL, 16); /* hack! */ /* cramfs_* only supports NOR flash chips */ /* fake the device type */ id.type = MTD_DEV_TYPE_NOR; id.num = 0; dev.id = &id; part.dev = &dev; /* fake the address offset */ part.offset = (u64)(uintptr_t) map_sysmem(addr - OFFSET_ADJUSTMENT, 0); if (argc == 2) filename = argv[1]; ret = 0; if (cramfs_check(&part)) ret = cramfs_ls (&part, filename); unmap_sysmem((void *)(uintptr_t)part.offset); return ret ? 0 : 1; } /* command line only */ /***************************************************/ U_BOOT_CMD( cramfsload, 3, 0, do_cramfs_load, "load binary file from a filesystem image", "[ off ] [ filename ] " " - load binary file from address 'cramfsaddr' " " with offset 'off' " ); U_BOOT_CMD( cramfsls, 2, 1, do_cramfs_ls, "list files in a directory (default /)", "[ directory ] " " - list files in a directory. " ); |