Which cpus are known to work on the mips64 branch?

[Martin Husemann <martin%duskware.de@localhost>]

Hi folks,

now that mips-current works a bit better (but seems to fail with programs
using FPU) I tried to find out if my alchemy board would work on the mips64
branch. But the kernel dies imediately:

Start = 0x800a0000, range = (0x800a0000,0x803d954f), format = SREC

* Exception (user) : Reserved instruction *

CAUSE    = 0x80808028  STATUS   = 0x00000002
EPC      = 0x802a108c  ERROREPC = 0x00010800
BADVADDR = 0x02000401

$ 0(zr):0x00000000  $ 8(t0):0x00000000  $16(s0):0x803d0000  $24(t8):0x803d65c0
$ 1(at):0x803e0000  $ 9(t1):0x00000000  $17(s1):0x803d7330  $25(t9):0x802a1384
$ 2(v0):0x00000006  $10(t2):0x803d9550  $18(s2):0x00000006  $26(k0):0x00000000
$ 3(v1):0x00001000  $11(t3):0x00000000  $19(s3):0x80341544  $27(k1):0x00000000
$ 4(a0):0x803d7330  $12(t4):0x00000000  $20(s4):0x80000083  $28(gp):0x803e1530
$ 5(a1):0x00000000  $13(t5):0x00000000  $21(s5):0x00000001  $29(sp):0x8008ab34
$ 6(a2):0x00000001  $14(t6):0x00000000  $22(s6):0x8040f000  $30(s8):0x8008ac14
$ 7(a3):0x803d7dd0  $15(t7):0x00000000  $23(s7):0x80080af0  $31(ra):0x8021f498

Are mips32 cpus otherwise known to work on the branch? What cpus have been
tested there?

Martin