[POWERPC] 4xx: Add CPR0 accessors to boot wrapper

This adds macros to the boot wrapper to access the CPR
registers from the boot wrappers.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/arch/powerpc/boot/dcr.h b/arch/powerpc/boot/dcr.h
index 8e7ee2a4298..f6b793573b9 100644
--- a/arch/powerpc/boot/dcr.h
+++ b/arch/powerpc/boot/dcr.h
@@ -147,4 +147,31 @@ static const unsigned long sdram_bxcr[] = { SDRAM0_B0CR, SDRAM0_B1CR,
 #define DCRN_405_CPC0_CR0 0xb1
 #define DCRN_405_CPC0_CR1 0xb2
 
+
+/* 440GX Clock control etc */
+
+
+#define DCRN_CPR0_CLKUPD                                0x020
+#define DCRN_CPR0_PLLC                                  0x040
+#define DCRN_CPR0_PLLD                                  0x060
+#define DCRN_CPR0_PRIMAD                                0x080
+#define DCRN_CPR0_PRIMBD                                0x0a0
+#define DCRN_CPR0_OPBD                                  0x0c0
+#define DCRN_CPR0_PERD                                  0x0e0
+#define DCRN_CPR0_MALD                                  0x100
+
+/* CPRs read/write helper macros - based off include/asm-ppc/ibm44x.h */
+
+#define DCRN_CPR0_CFGADDR                               0xc
+#define DCRN_CPR0_CFGDATA                               0xd
+
+#define CPR0_READ(offset) ({\
+        mtdcr(DCRN_CPR0_CFGADDR, offset); \
+        mfdcr(DCRN_CPR0_CFGDATA); })
+#define CPR0_WRITE(offset, data) ({\
+        mtdcr(DCRN_CPR0_CFGADDR, offset); \
+        mtdcr(DCRN_CPR0_CFGDATA, data); })
+
+
+
 #endif  /* _PPC_BOOT_DCR_H_ */