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| author | Manuel Lauss <mano@roarinelk.homelinux.net> | 2008-12-21 09:26:27 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-01-11 09:57:27 +0000 |
| commit | 61f9c58da57a80b0df1ced18a28cbbaebd4d417a (patch) | |
| tree | cbeaa2353d98899e88c6d44dc8d1a16eabbb6a47 /arch/mips/alchemy/devboards/Makefile | |
| parent | ac15dad061d351281b0bafbae1ecdd84e601435a (diff) | |
| download | blackbird-op-linux-61f9c58da57a80b0df1ced18a28cbbaebd4d417a.tar.gz blackbird-op-linux-61f9c58da57a80b0df1ced18a28cbbaebd4d417a.zip | |
MIPS: Alchemy: new userspace suspend interface for development boards.
Replace the current sysctl-based suspend interface with a new sysfs-
based one which also uses the Linux-2.6 suspend model.
To configure wakeup sources, a subtree for the demoboards is created
under /sys/power/db1x:
sys/
`-- power
`-- db1x
|-- gpio0
|-- gpio1
|-- gpio2
|-- gpio3
|-- gpio4
|-- gpio5
|-- gpio6
|-- gpio7
|-- timer
|-- timer_timeout
|-- wakemsk
`-- wakesrc
The nodes 'gpio[0-7]' and 'timer' configure the GPIO0..7 and M2
bits of the SYS_WAKEMSK (wakeup source enable) register. Writing '1'
enables a wakesource, 0 disables it.
The 'timer_timeout' node holds the timeout in seconds after which the
TOYMATCH2 event should wake the system.
The 'wakesrc' node holds the SYS_WAKESRC register after wakeup (in hex),
the 'wakemsk' node can be used to get/set the wakeup mask directly.
For example, to have the timer wake the system after 10 seconds of sleep,
the following must be done in userspace:
echo 10 > /sys/power/db1x/timer_timeout
echo 1 > /sys/power/db1x/timer
echo mem > /sys/power/sleep
This patch also removes the homebrew CPU frequency switching code. I don't
understand how it could have ever worked reliably; it does not communicate
the clock changes to peripheral devices other than uarts.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
create mode 100644 arch/mips/alchemy/devboards/pm.c
Diffstat (limited to 'arch/mips/alchemy/devboards/Makefile')
| -rw-r--r-- | arch/mips/alchemy/devboards/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/alchemy/devboards/Makefile b/arch/mips/alchemy/devboards/Makefile index c0eb87a66fbd..730f9f2b30e8 100644 --- a/arch/mips/alchemy/devboards/Makefile +++ b/arch/mips/alchemy/devboards/Makefile @@ -3,6 +3,7 @@ # obj-y += prom.o +obj-$(CONFIG_PM) += pm.o obj-$(CONFIG_MIPS_PB1000) += pb1000/ obj-$(CONFIG_MIPS_PB1100) += pb1100/ obj-$(CONFIG_MIPS_PB1200) += pb1200/ |
