Once CONFIG_FAT_WRITE is defined,
users can invoke 'fatwrite' command that saves data in RAM as a FAT file.
Signed-off-by: Donggeun Kim
Signed-off-by: Kyungmin Park
---
common/cmd_fat.c | 59 ++
1 files changed, 59 insertions(+), 0 deletions(-)
diff --git a/common/cmd_fat.c b/common/cmd_fat.c
index 0220494..17677bc 100644
--- a/common/cmd_fat.c
+++ b/common/cmd_fat.c
@@ -184,3 +184,62 @@ U_BOOT_CMD(
" \n"
"- print information about filesystem from 'dev' on 'interface'"
);
+
+#ifdef CONFIG_FAT_WRITE
+int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ long size;
+ unsigned long addr;
+ unsigned long count;
+ block_dev_desc_t *dev_desc = NULL;
+ int dev = 0;
+ int part = 1;
+ char *ep;
+
+ if (argc < 5) {
+ printf("usage: fatwrite "
+ " \n");
+ return 1;
+ }
+
+ dev = (int)simple_strtoul(argv[2], &ep, 16);
+ dev_desc = get_dev(argv[1], dev);
+ if (dev_desc == NULL) {
+ puts("\n** Invalid boot device **\n");
+ return 1;
+ }
+ if (*ep) {
+ if (*ep != ':') {
+ puts("\n** Invalid boot device, use `dev[:part]' **\n");
+ return 1;
+ }
+ part = (int)simple_strtoul(++ep, NULL, 16);
+ }
+ if (fat_register_device(dev_desc, part) != 0) {
+ printf("\n** Unable to use %s %d:%d for fatwrite **\n",
+ argv[1], dev, part);
+ return 1;
+ }
+ addr = simple_strtoul(argv[3], NULL, 16);
+ count = simple_strtoul(argv[5], NULL, 16);
+
+ size = file_fat_write(argv[4], (void *)addr, count);
+ if (size == -1) {
+ printf("\n** Unable to write \"%s\" from %s %d:%d **\n",
+ argv[4], argv[1], dev, part);
+ return 1;
+ }
+
+ printf("%ld bytes write\n", size);
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ fatwrite, 6, 0, do_fat_fswrite,
+ "write file into a dos filesystem",
+ "\n"
+ "- write file 'filename' from the address 'addr' in RAM\n"
+ " to 'dev' on 'interface'"
+);
+#endif
--
1.7.4.1
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