/* * 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 <linux/list.h> #include <linux/ctype.h> #include <jffs2/jffs2.h> #include <jffs2/load_kernel.h> #include <cramfs/cramfs_fs.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 #ifdef CONFIG_CRAMFS_CMDLINE #include <flash.h> #ifdef CONFIG_SYS_NO_FLASH # define OFFSET_ADJUSTMENT 0 #else # define OFFSET_ADJUSTMENT (flash_info[id.num].start[0]) #endif #ifndef CONFIG_CMD_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_CMD_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; struct part_info part; struct mtd_device dev; struct mtdids id; ulong addr; addr = simple_strtoul(getenv("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 = addr - OFFSET_ADJUSTMENT; /* pre-set Boot file name */ if ((filename = getenv("bootfile")) == NULL) { filename = "uImage"; } if (argc == 2) { filename = argv[1]; } if (argc == 3) { offset = simple_strtoul(argv[1], NULL, 0); load_addr = offset; filename = argv[2]; } size = 0; if (cramfs_check(&part)) size = cramfs_load ((char *) offset, &part, filename); if (size > 0) { printf("### CRAMFS load complete: %d bytes loaded to 0x%lx\n", size, offset); setenv_hex("filesize", size); } else { printf("### CRAMFS LOAD ERROR<%x> for %s!\n", size, filename); } 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(getenv("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 = addr - OFFSET_ADJUSTMENT; if (argc == 2) filename = argv[1]; ret = 0; if (cramfs_check(&part)) ret = cramfs_ls (&part, filename); 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 ]\n" " - load binary file from address 'cramfsaddr'\n" " with offset 'off'\n" ); U_BOOT_CMD( cramfsls, 2, 1, do_cramfs_ls, "list files in a directory (default /)", "[ directory ]\n" " - list files in a directory.\n" ); #endif /* #ifdef CONFIG_CRAMFS_CMDLINE */ /***************************************************/