CRAMFS: support cramfs in RAM
cramfsls and cramfsload are added to the command list. A cramfs placed at 'cramfs_addr' can the be listed with 'cramfsls' and files can be loaded with 'cramfsload'. 'cramfs_addr' is an environment variable specifying the address the cramfs is located. This works for powerpc and for ARM. Use CONFIG_CMD_CRAMFS. Signed-off-by: Andreas Huber <andreas.huber@keymile.com> Signed-off-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Heiko Schocher
Wolfgang Denk
parent
4897ee33c9
commit
88ffb2665c
@ -105,6 +105,7 @@ COBJS-$(CONFIG_CMD_IMMAP) += cmd_immap.o
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COBJS-$(CONFIG_CMD_IRQ) += cmd_irq.o
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COBJS-$(CONFIG_CMD_ITEST) += cmd_itest.o
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COBJS-$(CONFIG_CMD_JFFS2) += cmd_jffs2.o
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COBJS-$(CONFIG_CMD_CRAMFS) += cmd_cramfs.o
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COBJS-$(CONFIG_CMD_LICENSE) += cmd_license.o
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COBJS-y += cmd_load.o
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COBJS-$(CONFIG_LOGBUFFER) += cmd_log.o
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216
common/cmd_cramfs.c
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216
common/cmd_cramfs.c
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@ -0,0 +1,216 @@
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/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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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 <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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/* 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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#ifdef CONFIG_CRAMFS_CMDLINE
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flash_info_t flash_info[1];
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#ifndef CONFIG_CMD_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_CMD_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 *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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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(getenv("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 = addr - flash_info[id.num].start[0];
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/* pre-set Boot file name */
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if ((filename = getenv("bootfile")) == NULL) {
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filename = "uImage";
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}
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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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size = 0;
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if (cramfs_check(&part))
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size = cramfs_load ((char *) offset, &part, filename);
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if (size > 0) {
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char buf[10];
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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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sprintf(buf, "%x", size);
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setenv("filesize", buf);
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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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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 *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(getenv("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 = addr - flash_info[id.num].start[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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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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"cramfsload\t- 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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"cramfsls\t- 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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#endif /* #ifdef CONFIG_CRAMFS_CMDLINE */
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/***************************************************/
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