diff options
Diffstat (limited to 'include/asm-mips/cpu.h')
| -rw-r--r-- | include/asm-mips/cpu.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/asm-mips/cpu.h b/include/asm-mips/cpu.h index d38fdbf..2924069 100644 --- a/include/asm-mips/cpu.h +++ b/include/asm-mips/cpu.h @@ -125,6 +125,17 @@ #define PRID_REV_VR4130 0x0080 /* + * Older processors used to encode processor version and revision in two + * 4-bit bitfields, the 4K seems to simply count up and even newer MTI cores + * have switched to use the 8-bits as 3:3:2 bitfield with the last field as + * the patch number. *ARGH* + */ +#define PRID_REV_ENCODE_44(ver, rev) \ + ((ver) << 4 | (rev)) +#define PRID_REV_ENCODE_332(ver, rev, patch) \ + ((ver) << 5 | (rev) << 2 | (patch)) + +/* * FPU implementation/revision register (CP1 control register 0). * * +---------------------------------+----------------+----------------+ |