From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: To: Josh Boyer From: Benjamin Herrenschmidt Date: Thu, 13 Dec 2007 18:38:43 +1100 Subject: [PATCH 15/20] [POWERPC] Adds 44x CPR0 accessors to boot wrapper Message-Id: <20071213073848.A1730DDFD6@ozlabs.org> Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This adds macros to the boot wrapper to access the CPR registers from the boot wrappers. Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/boot/dcr.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) --- linux-merge.orig/arch/powerpc/boot/dcr.h 2007-12-13 18:33:32.000000000 +1100 +++ linux-merge/arch/powerpc/boot/dcr.h 2007-12-13 18:33:33.000000000 +1100 @@ -147,4 +147,31 @@ static const unsigned long sdram_bxcr[] #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_ */