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[POWERPC] Xserve cpu-meter driver

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This is a small driver for the Xserve G5 CPU-meter blue LEDs on the
front-panel. It might work on the Xserve G4 as well though that was
not tested. It's pretty basic and could use some improvements if
somebody cares doing them. :)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Benjamin Herrenschmidt
2006-11-16 14:03:33 +11:00
committed by Paul Mackerras
parent 088df4d256
commit 3e00a5aec3
4 changed files with 627 additions and 1 deletions
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8
include/asm-powerpc/dbdma.h
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@@ -95,7 +95,13 @@ struct dbdma_cmd {
#define DBDMA_DO_STOP(regs) do { \
out_le32(&((regs)->control), (RUN|FLUSH)<<16); \
while(in_le32(&((regs)->status)) & (ACTIVE|FLUSH)) \
; \
; \
} while(0)
#define DBDMA_DO_RESET(regs) do { \
out_le32(&((regs)->control), (ACTIVE|DEAD|WAKE|FLUSH|PAUSE|RUN)<<16);\
while(in_le32(&((regs)->status)) & (RUN)) \
; \
} while(0)
#endif /* _ASM_DBDMA_H_ */