[POWERPC] Xserve cpu-meter driver
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>
diff --git a/include/asm-powerpc/dbdma.h b/include/asm-powerpc/dbdma.h
index 8973565..e23f07e 100644
--- a/include/asm-powerpc/dbdma.h
+++ b/include/asm-powerpc/dbdma.h
@@ -95,7 +95,13 @@
#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_ */