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Re: Linux for MIPS Atlas 4Kc board

To: Michael Anburaj <michaelanburaj@hotmail.com>
Subject: Re: Linux for MIPS Atlas 4Kc board
From: Muthukumar Ratty <muthu@iqmail.net>
Date: Sun, 4 May 2003 19:21:49 -0700 (PDT)
Cc: <linux-mips@linux-mips.org>
In-reply-to: <BAY1-F6t67zLTJTBUsl000074ca@hotmail.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
Sender: linux-mips-bounce@linux-mips.org
Hi Mike,

I dont know what version you are trying but the one at linux_2_4 branch
(linux2.4.21-pre4) seems to work. You can get it with

cvs -d :pserver:cvs@ftp.linux-mips.org:/home/cvs co -r linux_2_4 linux

to configure, you can use the default config. from head do ..

cp arch/mips/default-atlas .config

I tried little endian. If you want that you need to select it in the
config.

Muthu


On Sun, 4 May 2003, Michael Anburaj wrote:

> 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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