Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit bc0b4e7f authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt Committed by Josh Boyer
Browse files

[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: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarJosh Boyer <jwboyer@linux.vnet.ibm.com>
parent ee41eea9

arch/powerpc/boot/dcr.h

+27 −0
Original line number Original line Diff line number Diff line
@@ -147,4 +147,31 @@ static const unsigned long sdram_bxcr[] = { SDRAM0_B0CR, SDRAM0_B1CR, 
#define DCRN_405_CPC0_CR0 0xb1

#define DCRN_405_CPC0_CR0 0xb1

#define DCRN_405_CPC0_CR1 0xb2

#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_ */
 
#endif	/* _PPC_BOOT_DCR_H_ */