Hi,
Finally, I could compile vmlinux. I thought of booting this RAM image (or
its SREC equivalent) using the onboard YAMON (in BIG endian mode - I am
having trouble building Redboot in BIG endian mode <issue ported at ecos
forum>, so for now thought of using YAMON). After downloding the
vmlinux.srec over the serial port (Starting at 0x80100000), I issued the go
command to run the image. I get the following message:
YAMON> go
LINUX started...
* Exception (user) : Reserved instruction *
BadVAddr = 0x00000000 Cause = 0x00808028
Compare = 0x00061a80 Config = 0x80038083
Config1 = 0x1e9b4d8a Context = 0x63800000
Count = 0xb9188fd8 DEPC = 0x21424255
Debug = 0x0400dc0b EPC = 0x80122258
EntryHi = 0x00000068 EntryLo0 = 0x028ff72e
EntryLo1 = 0x035a241f ErrorEPC = 0x8003add0
Index = 0x0000000b PRId = 0x00018001
PageMask = 0x01b90000 Random = 0x0000000d
Status = 0x00000402 WatchHi = 0x00000000
WatchLo = 0x00000000 Wired = 0x00000000
Hi = 0x00000000 Lo = 0x04000000
$ 0(zr):0x00000000 $ 8(t0):0x00000000 $16(s0):0x802d810a
$24(t8):0xffffffff
$ 1(at):0x80280000 $ 9(t1):0x00000000 $17(s1):0x802d810c
$25(t9):0x802c1e94
$ 2(v0):0x0000000a $10(t2):0x8024f401 $18(s2):0x00000400
$26(k0):0x00000000
$ 3(v1):0x00000000 $11(t3):0x00000000 $19(s3):0x00000001
$27(k1):0x00000000
$ 4(a0):0x00000000 $12(t4):0x00000000 $20(s4):0x0000001a
$28(gp):0x802c0000
$ 5(a1):0x80280000 $13(t5):0x00000000 $21(s5):0x0000000a
$29(sp):0x802c1f58
$ 6(a2):0x8024385a $14(t6):0x802d8109 $22(s6):0x0000003e
$30(s8):0x800b1080
$ 7(a3):0x00000000 $15(t7):0xfffffffe $23(s7):0x0000003c
$31(ra):0x80122230
The linux image started fine, but caused an exception after a while. Is this
because Linux is not compatible with YAMON? If so, what are the possible
monitor programs that can go with Linux? Please point me to the documents in
this regard (documents on running Linux executable on Atlas 4Kc board).
Or will Linux work with any ROM monitor? If so, please let me know the
reason for the exception.
Thanks a lot,
-Mike.
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