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path: root/arch/avr32/mach-at32ap/pm-at32ap700x.S
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2008-09-01avr32: pm_standby low-power ram bug fixHumphrey Bucknell
The value stored into the SDRAMC LPR register should be the current value of the register with the Self-refresh value set in the lower bit field. The bug involved only the Self-refresh value being written to the register, thus over writing any low-power ram settings. Signed-off-by: Humphrey Bucknell <hbucknell@saitek.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2008-08-05avr32: Use <mach/foo.h> instead of <asm/arch/foo.h>Haavard Skinnemoen
Update all avr32-specific files to use the new platform-specific header locations. Drivers shared with ARM are left alone for now. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2008-07-02avr32: Power Management support ("standby" and "mem" modes)Haavard Skinnemoen
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>
2008-04-19avr32: Move sleep code into mach-at32apHaavard Skinnemoen
Create a new file, pm-at32ap700x.S, in mach-at32ap and move the CPU idle sleep code there. Make it possible to disable the sleep code. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>