Hi Russell,
Today's linux-next merge of the arm tree got a conflict in
arch/arm/mach-at91/include/mach/system.h between commit
5c189208b606a85b4e97109af70d59f10a42fdfd ("ARM: 6436/1: AT91: Fix
power-saving in idle-mode on 926T processors") from the arm-current tree
and commit cb809b1a5ebffca8cf0314b788919989e8e4ab5f ("AT91: fix use of
clock disable on idle for AT91x40 devices") from the arm tree.
I fixed it up (see below) and can carry the fix as necessary.
--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
diff --cc arch/arm/mach-at91/include/mach/system.h
index ee8db15,bfbb612..0000000
--- a/arch/arm/mach-at91/include/mach/system.h
+++ b/arch/arm/mach-at91/include/mach/system.h
@@@ -32,12 -33,16 +32,16 @@@ static inline void arch_idle(void
* Disable the processor clock. The processor will be automatically
* re-enabled by an interrupt or by a reset.
*/
+ #ifdef AT91_PS
+ at91_sys_write(AT91_PS_CR, AT91_PS_CR_CPU);
+ #else
at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK);
+ #endif
-#else
+#ifndef CONFIG_CPU_ARM920T
/*
* Set the processor (CP15) into 'Wait for Interrupt' mode.
- * Unlike disabling the processor clock via the PMC (above)
- * this allows the processor to be woken via JTAG.
+ * Post-RM9200 processors need this in conjunction with the above
+ * to save power when idle.
*/
cpu_do_idle();
#endif
--
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