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-rw-r--r--arch/arm/mach-at91/at91x40.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at91x40.c b/arch/arm/mach-at91/at91x40.c
index 56ba3bd..d62fe09 100644
--- a/arch/arm/mach-at91/at91x40.c
+++ b/arch/arm/mach-at91/at91x40.c
@@ -13,6 +13,8 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/irq.h>
+#include <asm/proc-fns.h>
+#include <asm/system_misc.h>
#include <asm/mach/arch.h>
#include <mach/at91x40.h>
#include <mach/at91_st.h>
@@ -37,8 +39,19 @@ unsigned long clk_get_rate(struct clk *clk)
return AT91X40_MASTER_CLOCK;
}
+static void at91x40_idle(void)
+{
+ /*
+ * Disable the processor clock. The processor will be automatically
+ * re-enabled by an interrupt or by a reset.
+ */
+ __raw_writel(AT91_PS_CR_CPU, AT91_PS_CR);
+ cpu_do_idle();
+}
+
void __init at91x40_initialize(unsigned long main_clock)
{
+ arm_pm_idle = at91x40_idle;
at91_extern_irq = (1 << AT91X40_ID_IRQ0) | (1 << AT91X40_ID_IRQ1)
| (1 << AT91X40_ID_IRQ2);
}