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| author | Donggeun Kim <dg77.kim@samsung.com> | 2012-03-22 04:38:56 +0000 |
|---|---|---|
| committer | Anatolij Gustschin <agust@denx.de> | 2012-03-26 11:00:31 +0200 |
| commit | 656f4c653785eb3fac84796da5d3bc04c4918290 (patch) | |
| tree | 9cd9e4128ca74b2d6ae2ed1db82691ffdcb3fc4e /common/cmd_fat.c | |
| parent | bf6b6af74655506ce23ca04d6e5c6b3ad3fcf490 (diff) | |
| download | u-boot-imx-656f4c653785eb3fac84796da5d3bc04c4918290.zip u-boot-imx-656f4c653785eb3fac84796da5d3bc04c4918290.tar.gz u-boot-imx-656f4c653785eb3fac84796da5d3bc04c4918290.tar.bz2 | |
cmd_fat: add FAT write command
Once CONFIG_FAT_WRITE is defined, users can invoke 'fatwrite' command
that saves data in RAM as a FAT file.
This patch was originally part of
http://article.gmane.org/gmane.comp.boot-loaders.u-boot/121847
Signed-off-by: Donggeun Kim <dg77.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Maximilian Schwerin <mvs@tigris.de>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Diffstat (limited to 'common/cmd_fat.c')
| -rw-r--r-- | common/cmd_fat.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/common/cmd_fat.c b/common/cmd_fat.c index 0220494..559a16d 100644 --- a/common/cmd_fat.c +++ b/common/cmd_fat.c @@ -184,3 +184,60 @@ U_BOOT_CMD( "<interface> <dev[:part]>\n" " - print information about filesystem from 'dev' on 'interface'" ); + +#ifdef CONFIG_FAT_WRITE +static 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) + return cmd_usage(cmdtp); + + 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 written\n", size); + + return 0; +} + +U_BOOT_CMD( + fatwrite, 6, 0, do_fat_fswrite, + "write file into a dos filesystem", + "<interface> <dev[:part]> <addr> <filename> <bytes>\n" + " - write file 'filename' from the address 'addr' in RAM\n" + " to 'dev' on 'interface'" +); +#endif |