mirror of
https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
211 lines
4.9 KiB
C
211 lines
4.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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*
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* based on: cmd_jffs2.c
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*
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* Add support for a CRAMFS located in RAM
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*/
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/*
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* CRAMFS support
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*/
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#include <common.h>
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#include <command.h>
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#include <malloc.h>
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#include <mapmem.h>
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#include <linux/list.h>
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#include <linux/ctype.h>
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#include <jffs2/jffs2.h>
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#include <jffs2/load_kernel.h>
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#include <cramfs/cramfs_fs.h>
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#include <asm/io.h>
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/* enable/disable debugging messages */
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#define DEBUG_CRAMFS
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#undef DEBUG_CRAMFS
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#ifdef DEBUG_CRAMFS
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# define DEBUGF(fmt, args...) printf(fmt ,##args)
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#else
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# define DEBUGF(fmt, args...)
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#endif
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#include <flash.h>
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#ifndef CONFIG_MTD_NOR_FLASH
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# define OFFSET_ADJUSTMENT 0
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#else
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# define OFFSET_ADJUSTMENT (flash_info[id.num].start[0])
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#endif
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#ifndef CONFIG_FS_JFFS2
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#include <linux/stat.h>
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char *mkmodestr(unsigned long mode, char *str)
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{
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static const char *l = "xwr";
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int mask = 1, i;
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char c;
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switch (mode & S_IFMT) {
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case S_IFDIR: str[0] = 'd'; break;
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case S_IFBLK: str[0] = 'b'; break;
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case S_IFCHR: str[0] = 'c'; break;
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case S_IFIFO: str[0] = 'f'; break;
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case S_IFLNK: str[0] = 'l'; break;
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case S_IFSOCK: str[0] = 's'; break;
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case S_IFREG: str[0] = '-'; break;
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default: str[0] = '?';
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}
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for(i = 0; i < 9; i++) {
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c = l[i%3];
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str[9-i] = (mode & mask)?c:'-';
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mask = mask<<1;
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}
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if(mode & S_ISUID) str[3] = (mode & S_IXUSR)?'s':'S';
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if(mode & S_ISGID) str[6] = (mode & S_IXGRP)?'s':'S';
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if(mode & S_ISVTX) str[9] = (mode & S_IXOTH)?'t':'T';
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str[10] = '\0';
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return str;
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}
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#endif /* CONFIG_FS_JFFS2 */
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extern int cramfs_check (struct part_info *info);
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extern int cramfs_load (char *loadoffset, struct part_info *info, char *filename);
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extern int cramfs_ls (struct part_info *info, char *filename);
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extern int cramfs_info (struct part_info *info);
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/***************************************************/
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/* U-Boot commands */
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/***************************************************/
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/**
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* Routine implementing fsload u-boot command. This routine tries to load
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* a requested file from cramfs filesystem at location 'cramfsaddr'.
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* cramfsaddr is an evironment variable.
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*
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* @param cmdtp command internal data
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* @param flag command flag
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* @param argc number of arguments supplied to the command
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* @param argv arguments list
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* @return 0 on success, 1 otherwise
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*/
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int do_cramfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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char *filename;
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int size;
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ulong offset = load_addr;
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char *offset_virt;
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struct part_info part;
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struct mtd_device dev;
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struct mtdids id;
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ulong addr;
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addr = simple_strtoul(env_get("cramfsaddr"), NULL, 16);
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/* hack! */
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/* cramfs_* only supports NOR flash chips */
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/* fake the device type */
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id.type = MTD_DEV_TYPE_NOR;
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id.num = 0;
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dev.id = &id;
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part.dev = &dev;
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/* fake the address offset */
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part.offset = (u64)(uintptr_t) map_sysmem(addr - OFFSET_ADJUSTMENT, 0);
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/* pre-set Boot file name */
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filename = env_get("bootfile");
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if (!filename)
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filename = "uImage";
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if (argc == 2) {
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filename = argv[1];
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}
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if (argc == 3) {
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offset = simple_strtoul(argv[1], NULL, 0);
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load_addr = offset;
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filename = argv[2];
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}
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offset_virt = map_sysmem(offset, 0);
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size = 0;
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if (cramfs_check(&part))
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size = cramfs_load (offset_virt, &part, filename);
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if (size > 0) {
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printf("### CRAMFS load complete: %d bytes loaded to 0x%lx\n",
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size, offset);
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env_set_hex("filesize", size);
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} else {
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printf("### CRAMFS LOAD ERROR<%x> for %s!\n", size, filename);
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}
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unmap_sysmem(offset_virt);
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unmap_sysmem((void *)(uintptr_t)part.offset);
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return !(size > 0);
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}
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/**
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* Routine implementing u-boot ls command which lists content of a given
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* directory at location 'cramfsaddr'.
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* cramfsaddr is an evironment variable.
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*
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* @param cmdtp command internal data
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* @param flag command flag
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* @param argc number of arguments supplied to the command
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* @param argv arguments list
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* @return 0 on success, 1 otherwise
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*/
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int do_cramfs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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char *filename = "/";
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int ret;
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struct part_info part;
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struct mtd_device dev;
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struct mtdids id;
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ulong addr;
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addr = simple_strtoul(env_get("cramfsaddr"), NULL, 16);
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/* hack! */
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/* cramfs_* only supports NOR flash chips */
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/* fake the device type */
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id.type = MTD_DEV_TYPE_NOR;
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id.num = 0;
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dev.id = &id;
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part.dev = &dev;
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/* fake the address offset */
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part.offset = (u64)(uintptr_t) map_sysmem(addr - OFFSET_ADJUSTMENT, 0);
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if (argc == 2)
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filename = argv[1];
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ret = 0;
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if (cramfs_check(&part))
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ret = cramfs_ls (&part, filename);
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unmap_sysmem((void *)(uintptr_t)part.offset);
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return ret ? 0 : 1;
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}
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/* command line only */
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/***************************************************/
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U_BOOT_CMD(
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cramfsload, 3, 0, do_cramfs_load,
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"load binary file from a filesystem image",
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"[ off ] [ filename ]\n"
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" - load binary file from address 'cramfsaddr'\n"
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" with offset 'off'\n"
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);
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U_BOOT_CMD(
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cramfsls, 2, 1, do_cramfs_ls,
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"list files in a directory (default /)",
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"[ directory ]\n"
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" - list files in a directory.\n"
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);
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