diff options
Diffstat (limited to 'arch/mips/cpu/start.S')
| -rw-r--r-- | arch/mips/cpu/start.S | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/arch/mips/cpu/start.S b/arch/mips/cpu/start.S index cbc02fa9fe..3f0fc12547 100644 --- a/arch/mips/cpu/start.S +++ b/arch/mips/cpu/start.S @@ -108,9 +108,28 @@ ENTRY(_start) .align 4 reset: +#if __mips_isa_rev >= 6 + mfc0 t0, CP0_CONFIG, 5 + and t0, t0, MIPS_CONF5_VP + beqz t0, 1f + nop + + b 2f + mfc0 t0, CP0_GLOBALNUMBER +#endif + +1: mfc0 t0, CP0_EBASE + and t0, t0, EBASE_CPUNUM + + /* Hang if this isn't the first CPU in the system */ +2: beqz t0, 4f + nop +3: wait + b 3b + nop /* Clear watch registers */ - MTC0 zero, CP0_WATCHLO +4: MTC0 zero, CP0_WATCHLO mtc0 zero, CP0_WATCHHI /* WP(Watch Pending), SW0/1 should be cleared */ |