- const char *filename = "/";
- int part_length;
- unsigned long part = 1;
- int dev;
- char *ep;
- unsigned long ram_address;
- unsigned long file_size;
- disk_partition_t info;
- struct ext_filesystem *fs;
-
- if (argc < 6)
- return cmd_usage(cmdtp);
-
- dev = (int)simple_strtoul(argv[2], &ep, 16);
- ext4_dev_desc = get_dev(argv[1], dev);
- if (ext4_dev_desc == NULL) {
- printf("Block device %s %d not supported\n", argv[1], dev);
- return 1;
- }
-
- fs = get_fs();
- if (*ep) {
- if (*ep != ':') {
- puts("Invalid boot device, use `dev[:part]'\n");
- goto fail;
- }
- part = simple_strtoul(++ep, NULL, 16);
- }
-
- /* get the filename */
- filename = argv[3];
-
- /* get the address in hexadecimal format (string to int) */
- ram_address = simple_strtoul(argv[4], NULL, 16);
-
- /* get the filesize in base 10 format */
- file_size = simple_strtoul(argv[5], NULL, 10);
-
- /* set the device as block device */
- part_length = ext4fs_set_blk_dev(ext4_dev_desc, part);
- if (part_length == 0) {
- printf("Bad partition - %s %d:%lu\n", argv[1], dev, part);
- goto fail;
- }
-
- /* register the device and partition */
- if (ext4_register_device(ext4_dev_desc, part) != 0) {
- printf("Unable to use %s %d:%lu for fattable\n",
- argv[1], dev, part);
- goto fail;
- }
-
- /* get the partition information */
- if (!get_partition_info(ext4_dev_desc, part, &info)) {
- total_sector = (info.size * info.blksz) / SECTOR_SIZE;
- fs->total_sect = total_sector;
- } else {
- printf("error : get partition info\n");
- goto fail;
- }
-
- /* mount the filesystem */
- if (!ext4fs_mount(part_length)) {
- printf("Bad ext4 partition %s %d:%lu\n", argv[1], dev, part);
- goto fail;
- }
-
- /* start write */
- if (ext4fs_write(filename, (unsigned char *)ram_address, file_size)) {
- printf("** Error ext4fs_write() **\n");
- goto fail;
- }
- ext4fs_close();
-
- return 0;
-
-fail:
- ext4fs_close();
-
- return 1;