[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>

diff --git a/arch/powerpc/boot/dcr.h b/arch/powerpc/boot/dcr.h
index 8e7ee2a..f6b7935 100644 (file)
--- 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_ */