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linux-next/arch/mips/loongson
Wu Zhangjin fc48c41af8 MIPS: Loongson: Cleanup the halt and poweroff action
In the old source code, I have let halt and poweroff do the same action,
but in reality, they have different meanings.

As the manpage of shutdown shows:

-r     Reboot after shutdown.
-H     Halt action is to halt or drop into boot monitor on systems that support it.
-P     Halt action is to turn off the power.

and in the real world, some machines(e.g. NAS) did not provide a power
button and the shutdown works as reset, so, we need to provide a
mechanism to let the users turn off the power safely without breaking
the system, such a mechanism is "halt", which only put the system into a
dead loop or a power-save mode and print some information to the screen
to tell the users to turn off the power safely.

$ shutdown -hH now /* loongson_halt, not turn off the power */
$ shutdown -hP now /* loongson_poweroff, work as poweroff */

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Tested-by: Liu Shiwei <liushiwei@gmail.com>
Cc: Liu Shiwei <liushiwei@gmail.com>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/883/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27 12:53:17 +01:00
..
common MIPS: Loongson: Cleanup the halt and poweroff action 2010-02-27 12:53:17 +01:00
fuloong-2e MIPS: Loongson: Change the Email address of Wu Zhangjin 2010-02-27 12:53:12 +01:00
lemote-2f MIPS: Loongson: Change the Email address of Wu Zhangjin 2010-02-27 12:53:12 +01:00
Kconfig MIPS: Loongson: Cleanups of serial port support 2009-12-17 01:57:34 +00:00
Makefile MIPS: Lemote 2F: Add IRQ support 2009-12-17 01:57:13 +00:00