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From: Ulf Lilleengen <lulf@FreeBSD.org>
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Subject: PERFORCE change 158436 for review
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http://perforce.freebsd.org/chv.cgi?CH=158436

Change 158436 by lulf@lulf_carrot on 2009/02/28 08:04:57

	- Add a ap7000 specific header with implementation-defined settings.
	- First try at implementing cpu_idle, setting the cpu to IDLE mode for
	  ap7000.

Affected files ...

.. //depot/projects/avr32/src/sys/avr32/avr32/cpu.c#8 edit
.. //depot/projects/avr32/src/sys/avr32/include/at32ap7000.h#1 add

Differences ...

==== //depot/projects/avr32/src/sys/avr32/avr32/cpu.c#8 (text+ko) ====

@@ -63,6 +63,7 @@
 #include <machine/reg_intc.h>
 #include <machine/reg_usart.h>
 #include <machine/at32ap700x.h>
+#include <machine/at32ap7000.h>
 
 extern vm_offset_t _evba;
 
@@ -89,7 +90,17 @@
 void
 cpu_idle(int busy)
 {
+	uint32_t gm;
+
+	gm = bit_offset(SYS, SR, GM);
+	/* Make sure interrupts are enabled before we do this. */
+	if (gm == 1 || (sysreg_read(SR) & INTR_MASK) == gm)
+		panic("sleeping with interrupts disabled");
+#if defined(CPU_AT32AP7000)
+	__asm__ __volatile ("sleep %0" : : "i"(AT32AP7000_SLEEP_IDLE));
+#else
 	avr32_impl();
+#endif
 }
 
 void