avr32: Move sleep code into mach-at32ap

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>

1 files changed, 48 insertions, 0 deletions

diff --git a/include/asm-avr32/arch-at32ap/pm.h b/include/asm-avr32/arch-at32ap/pm.h
new file mode 100644
index 0000000..356e430
--- /dev/null
+++ b/include/asm-avr32/arch-at32ap/pm.h
@@ -0,0 +1,48 @@
+/*
+ * AVR32 AP Power Management.
+ *
+ * Copyright (C) 2008 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_ARCH_PM_H
+#define __ASM_AVR32_ARCH_PM_H
+
+/* Possible arguments to the "sleep" instruction */
+#define CPU_SLEEP_IDLE		0
+#define CPU_SLEEP_FROZEN	1
+#define CPU_SLEEP_STANDBY	2
+#define CPU_SLEEP_STOP		3
+#define CPU_SLEEP_STATIC	5
+
+#ifndef __ASSEMBLY__
+extern void cpu_enter_idle(void);
+
+extern bool disable_idle_sleep;
+
+static inline void cpu_disable_idle_sleep(void)
+{
+	disable_idle_sleep = true;
+}
+
+static inline void cpu_enable_idle_sleep(void)
+{
+	disable_idle_sleep = false;
+}
+
+static inline void cpu_idle_sleep(void)
+{
+	/*
+	 * If we're using the COUNT and COMPARE registers for
+	 * timekeeping, we can't use the IDLE state.
+	 */
+	if (disable_idle_sleep)
+		cpu_relax();
+	else
+		cpu_enter_idle();
+}
+#endif
+
+#endif /* __ASM_AVR32_ARCH_PM_H */