diff options
| author |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2007-12-21 15:39:32 +1100 |
|---|---|---|
| committer |   Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2007-12-23 13:14:35 -0600 |
| commit | bc0b4e7ffb528282df5f8ba9c7c3f60135603e9e (patch) | |
| tree | e4d91d8b5655a860cbe833c1a0f5cc8fcce4476e | |
| parent | [POWERPC] 4xx: Add mfspr/mtspr inline macros to 4xx bootwrapper (diff) | |
| download | linux-dev-bc0b4e7ffb528282df5f8ba9c7c3f60135603e9e.tar.xz linux-dev-bc0b4e7ffb528282df5f8ba9c7c3f60135603e9e.zip | |
[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>
| -rw-r--r-- | arch/powerpc/boot/dcr.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/powerpc/boot/dcr.h b/arch/powerpc/boot/dcr.h index 8e7ee2a4298f..f6b793573b96 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_ */ |