commands: remove maxargs ...

No need to check for maximum argument counts. The commands are
safe to be called with more arguments, so lets safe some bytes.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

call getopt_reset only once ...

instead of calling getopt_reset in each command,
call it only once before calling the command.

Signed-off-by: Sascha Hauer <sha@pengutronix.de>

commands: add defines for command errors/success ...

This allows us to return COMMAND_ERROR_USAGE for
a failed command which will then print the usage,
a very common case for commands.

Signed-off-by: Sascha Hauer <sha@pengutronix.de>

consolidate command calling in execute_command ...

Signed-off-by: Sascha Hauer <sha@pengutronix.de>

move several commands into extra files ...

move false, true, help, insmod, lsmod, version into extra files

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

console: add a simple console for saving space ...

Add a simple console layer which is not able to handle multiple
consoles for those who don't need it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Subject: [PATCH] [general] Fixed constant strings in data section issue ...

For practical reasons I changed all string literals assumed to be constant
to reside in .rodata subsection at end of .text section.

Signed-off-by: Carsten Schlote <schlote@vahanus.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

implement TAB completion

- Insert commands sorted into the command list. This is useful ...

for commands added via modules.
- Let command aliases show up in help text

move readline command to a file of its own

Collect all commands in a linked list. This makes it easier to handle ...

dynamically registered commands.

export functions

Add register_command() to register a command in runtime. This ...

is only needed when modules are enabled, so the change is inside
"#ifdef CONFIG_MODULE"

declare lots of functions static

remove u-boot command paramter flag

- teach hush to honour PATH variable ...

- remove common/main.c. This is now handled in the different shells.

- putc is now putchar for better standard conformity ...

- make printf return int

svn_rev_701 ...

move do_test to own file and reimplement

svn_rev_571 ...

add line break to help messages

svn_rev_481 ...

make more char * const, fix compiler warnings

svn_rev_462 ...

- Add help texts for many commands.
- Let the linker sort the command table.
- Add support for multiple argmuments in several commands
  (mkdir, rmdir, rm, cat)

svn_rev_459

svn_rev_420 ...

- do more POSIX:
  - use DIR instead of struct dirent
  - use (struct dirent)->d_name instead of (struct dirent)->name
- switch to a new layout for U_BOOT_CMD:
  - use C99 initializers to be able to add more fields to the
    command struct
  - add aliases for commands (needed mainly for help -> ? and test -> [
  - This is not done for all commands yet, but the compiler will tell you ;)

svn_rev_375 ...

add readline, true, false commands

svn_rev_316 ...

make help command removable

svn_rev_207 ...

move several config options to kconfig

svn_rev_135 ...

CFG_CMD_ECHO -> CONFIG_CMD_ECHO

svn_rev_003 ...

remove all #if 0 and #if 1

Adjust "echo" as a default command ...

Patch by Sam Song, 19 Jun 2005

* Patches by Robert Whaley, 29 Nov 2004: ...

- update the pxa-regs.h file for PXA27x chips
  - add PXA27x based ADSVIX board
  - add support for MMC on PXA27x processors

* Patch by Andrew E. Mileski, 28 Nov 2004:
  Fix PPC4xx SPD SDRAM detection bug

* Patch by Hiroshi Ito, 26 Nov 2004:
  Fix logic of "test -z" and "test -n" commands