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[ARM] 3605/1: AT91RM9200 Power Management

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Patch from Andrew Victor

This patch adds the core Power Management support for the AT91RM9200
processor.  It will support suspend-to-RAM and standby modes.

The suspend-to-RAM functionality is not 100% complete.  The code that
needs to be execute from the internal SRAM to restore the system is
outstanding.  For now we just fall through to Standby mode.

The AT91-specific at91_suspend_entering_slow_clock() function will
eventually be replaced by clk_must_disable() once that functionality is
added to mainline clock API.

Patch from David Brownell.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Andrew Victor
2006-06-20 19:30:19 +01:00
committed by Russell King
parent 6902f523a3
commit 907d6deb62
3 changed files with 237 additions and 0 deletions
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5
include/asm-arm/arch-at91rm9200/gpio.h
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@@ -13,6 +13,8 @@
#ifndef __ASM_ARCH_AT91RM9200_GPIO_H
#define __ASM_ARCH_AT91RM9200_GPIO_H
#include <asm/irq.h>
#define PIN_BASE NR_AIC_IRQS
#define PQFP_GPIO_BANKS 3 /* PQFP package has 3 banks */
@@ -188,6 +190,9 @@ extern int at91_set_multi_drive(unsigned pin, int is_on);
/* callable at any time */
extern int at91_set_gpio_value(unsigned pin, int value);
extern int at91_get_gpio_value(unsigned pin);
extern void at91_gpio_suspend(void);
extern void at91_gpio_resume(void);
#endif
#endif