diff options
| author | Haavard Skinnemoen <hskinnemoen@atmel.com> | 2008-02-24 13:51:38 +0100 |
|---|---|---|
| committer | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-07-02 11:05:01 +0200 |
| commit | 02a00cf672a37292c31bbdde191712bfa40a4f1d (patch) | |
| tree | 5588f7cd600056861fe1313abe7b47b9c051eab6 /arch/avr32/Kconfig | |
| parent | avr32: Add system device for the internal interrupt controller (intc) (diff) | |
| download | linux-02a00cf672a37292c31bbdde191712bfa40a4f1d.tar.xz linux-02a00cf672a37292c31bbdde191712bfa40a4f1d.zip | |
avr32: Power Management support ("standby" and "mem" modes)
Implement Standby support. In this mode, we'll suspend all drivers,
put the SDRAM in self-refresh mode and switch off the HSB bus
("frozen" mode.)
Implement Suspend-to-mem support. In this mode, we suspend all
drivers, put the SDRAM into self-refresh mode and switch off all
internal clocks except the 32 kHz oscillator ("stop" mode.)
The lowest-level suspend code runs from a small portion of SRAM
allocated at startup time. This gets rid of a small potential race
with the SDRAM where we might try to enter self-refresh mode in the
middle of an icache burst. We also relocate all interrupt and
exception handlers to SRAM during the small window when we enter and
exit the low-power modes.
We don't need to do any special tricks to start and stop the PLL. The
main clock is automatically gated by hardware until the PLL is stable.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Diffstat (limited to 'arch/avr32/Kconfig')
| -rw-r--r-- | arch/avr32/Kconfig | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig index e8ee5fa017b6..45d63c986015 100644 --- a/arch/avr32/Kconfig +++ b/arch/avr32/Kconfig @@ -205,6 +205,11 @@ endmenu menu "Power management options" +source "kernel/power/Kconfig" + +config ARCH_SUSPEND_POSSIBLE + def_bool y + menu "CPU Frequency scaling" source "drivers/cpufreq/Kconfig" |