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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2005-11-07 14:27:33 +1100
committerPaul Mackerras <paulus@samba.org>2005-11-08 11:17:34 +1100
commit4350147a816b9c5b40fa59e4fa23f17490630b79 (patch)
treec333986047de60aa90809d669895726610c0c3e5 /include/asm-powerpc/reg.h
parenta82765b6eee3d1267ded3320ca67b39fe1844599 (diff)
downloadblackbird-op-linux-4350147a816b9c5b40fa59e4fa23f17490630b79.tar.gz
blackbird-op-linux-4350147a816b9c5b40fa59e4fa23f17490630b79.zip
[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 <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/reg.h')
-rw-r--r--include/asm-powerpc/reg.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/include/asm-powerpc/reg.h b/include/asm-powerpc/reg.h
index da848412f11b..489cf4c99c21 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;})
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