--- /dev/null
+/*
+ * 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 */
+
+/***************************************************/
Code Review / kvmfornfv.git / blobdiff