Adds 44x CPR0 accessors to boot wrapper
PATCH 15/20 Adds 44x 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 <[email protected]>
---
arch/powerpc/boot/dcr.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+)
arch/powerpc/boot/dcr.h +27 -0
@@ -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_ */