diff options
Diffstat (limited to 'common/cmd_mem.c')
| -rw-r--r-- | common/cmd_mem.c | 48 |
1 files changed, 40 insertions, 8 deletions
diff --git a/common/cmd_mem.c b/common/cmd_mem.c index beea5b0c9e..eaa7c4653e 100644 --- a/common/cmd_mem.c +++ b/common/cmd_mem.c @@ -176,11 +176,30 @@ out: return errno; } +static char cmd_md_help[] = +"Usage md [OPTIONS] <region>\n" +"display (hexdump) a memory region.\n" +"options:\n" +" -f <file> display file (default /dev/mem)\n" +" -b output in bytes\n" +" -w output in halfwords (16bit)\n" +" -l output in words (32bit)\n" +"\n" +"Memory regions:\n" +"Memory regions can be specified in two different forms: start+size\n" +"or start-end, If <start> is ommitted it defaults to 0. If end is ommited it\n" +"defaults to the end of the device, except for interactive commands like md\n" +"and mw for which it defaults to 0x100.\n" +"Sizes can be specified as decimal, or if prefixed with 0x as hexadecimal.\n" +"an optional suffix of k, M or G is for kibibytes, Megabytes or Gigabytes,\n" +"respectively\n"; + + U_BOOT_CMD_START(md) .maxargs = CONFIG_MAXARGS, .cmd = do_mem_md, - .usage = "md - memory display\n", - U_BOOT_CMD_HELP("write me\n") + .usage = "memory display", + U_BOOT_CMD_HELP(cmd_md_help) U_BOOT_CMD_END int do_mem_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) @@ -265,11 +284,16 @@ out: return errno; } +static char cmd_mw_help[] = +"Usage mw [OPTIONS] <region> <value(s)>\n" +"Write value(s) to the specifies region.\n" +"see 'help md' for supported options.\n"; + U_BOOT_CMD_START(mw) .maxargs = CONFIG_MAXARGS, .cmd = do_mem_mw, - .usage = "mw - memory write (fill)\n", - U_BOOT_CMD_HELP("write me\n") + .usage = "memory write (fill)", + U_BOOT_CMD_HELP(cmd_mw_help) U_BOOT_CMD_END int do_mem_cmp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) @@ -442,11 +466,19 @@ out: return ret; } +static char cmd_cp_help[] = +"Usage: cp <source> <destination>\n" +"cp copies file <source> to <destination>.\n" +"Currently only this form is supported and you have to specify the exact target\n" +"filename (not a target directory).\n" +"Note: This command was previously used as memory copy. Currently there is no\n" +"equivalent command for this. This must be fixed of course.\n"; + U_BOOT_CMD_START(cp) .maxargs = CONFIG_MAXARGS, .cmd = do_cp, - .usage = "cp - copy files\n", - U_BOOT_CMD_HELP("write me\n") + .usage = "copy files", + U_BOOT_CMD_HELP(cmd_cp_help) U_BOOT_CMD_END #ifndef CONFIG_CRC32_VERIFY @@ -624,7 +656,7 @@ device_initcall(mem_init); U_BOOT_CMD_START(cmp) .maxargs = 4, .cmd = do_mem_cmp, - .usage = "cmp - memory compare\n", + .usage = "memory compare", U_BOOT_CMD_HELP("write me\n") U_BOOT_CMD_END @@ -633,7 +665,7 @@ U_BOOT_CMD_END U_BOOT_CMD_START(crc32) .maxargs = 4, .cmd = do_mem_crc, - .usage = "crc32 - checksum calculation\n", + .usage = "checksum calculation", U_BOOT_CMD_HELP("address count [addr]\n - compute CRC32 checksum [save at addr]\n") U_BOOT_CMD_END |