From 4350147a816b9c5b40fa59e4fa23f17490630b79 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 7 Nov 2005 14:27:33 +1100 Subject: [PATCH] ppc64: SMU based macs cpufreq support CPU freq support using 970FX powertune facility for iMac G5 and SMU based single CPU desktop. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- include/asm-powerpc/reg.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'include/asm-powerpc/reg.h') diff --git a/include/asm-powerpc/reg.h b/include/asm-powerpc/reg.h index da848412f11..489cf4c99c2 100644 --- a/include/asm-powerpc/reg.h +++ b/include/asm-powerpc/reg.h @@ -396,6 +396,9 @@ #define SPRN_VRSAVE 0x100 /* Vector Register Save Register */ #define SPRN_XER 0x001 /* Fixed Point Exception Register */ +#define SPRN_SCOMC 0x114 /* SCOM Access Control */ +#define SPRN_SCOMD 0x115 /* SCOM Access DATA */ + /* Performance monitor SPRs */ #ifdef CONFIG_PPC64 #define SPRN_MMCR0 795 @@ -594,7 +597,11 @@ static inline void ppc64_runlatch_off(void) mtspr(SPRN_CTRLT, ctrl); } } -#endif + +extern unsigned long scom970_read(unsigned int address); +extern void scom970_write(unsigned int address, unsigned long value); + +#endif /* CONFIG_PPC64 */ #define __get_SP() ({unsigned long sp; \ asm volatile("mr %0,1": "=r" (sp)); sp;}) -- cgit v1.2.3-70-g09d2