Thanks...
Since I am trying to use a vxWorks bootloader which sets IMMR
to 0x0220 I added the following code right after interrupts
are turned off in head.S:
lis r4, 0xf000 at ha
addir4, r4, 0xf000 at l
mtspr IMMR, r4/* initialize the IMMR register */
This seems to work. The kernel starts to boot but ends up hanging
alittle earlier. I am not sure yet if the hang is related to these
changes. Do you see any problem with changing IMMR in the head.S?
Thanks,
Mike
.
.
.
i2c-core.o: i2c core module
CPM UART driver version 0.03
ttyS00 at 0x0280 is a SMC
pty: 256 Unix98 ptys configured
block: queued sectors max/low 20485kB/6828kB, 64 slots per queue
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Machine check in kernel mode.
Caused by (from SRR1=9032): Unknown values in msr
Oops: machine check, sig: 7
NIP: C010D3C8 XER: 2000 LR: C010D368 SP: C01F9E40 REGS: c01f9d90 TRAP:
0200
MSR: 9032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
TASK = c01f8000[1] 'swapper' Last syscall: 120
last math last altivec
GPR00: 000110C0 C01F9E40 C01F8000 001E C008AAC0 C009 C009
0030
GPR08: 0002FD3D C0124DD4 FE04 8424
GPR16: C00F C01CDE70
C01F9E48
GPR24: FA00 C01CDE00 9000 C01CDC00 F9C0 F0003C00 F0002A48
Call backtrace:
C010D368 C010C4BC C010C4F8 C010D944 C010A934 C0109C70 C0105830
C0105900 C00023C0 C0004F00
-Mike
-Original Message-
From: [EMAIL PROTECTED]
[mailto:owner-linuxppc-embedded at lists.linuxppc.org]On Behalf Of Wolfgang
Denk
Sent: Wednesday, August 01, 2001 11:38 AM
To: Mike O'Brien
Cc: linuxppc-embedded at lists.linuxppc.org
Subject: Re: Hanging in Init
In message <000101c11ab4$0fc48f60$6865a8c0 at airfiber.com> you wrote:
>
> I have been trying to get a custom PPC860 board up using MonteVista's Hard
> Hat
> 2.0 distribution using a vxWorks bootrom. I have made alot of progress in
> the last
> few days but have got stuck at the point here init is executed. The IMMR
is
> set
> to 0x0220. I ran across some old posts on the list referring to this
> being set
> too low for linux. Could this be the problem? If not does anyone have
any
Sure. Your system will crash as soon as the first user-land program
is running.
See
http://penguinppc.org/usr/embedded/howto/PowerPC-Embedded-HOWTO-10.html#ss10
.2
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de
"The algorithm to do that is extremely nasty. You might want to mug
someone with it." - M. Devine, Computer Science 340
-Original Message-
From: [EMAIL PROTECTED]
[mailto:owner-linuxppc-embedded at lists.linuxppc.org]On Behalf Of Wolfgang
Denk
Sent: Wednesday, August 01, 2001 11:38 AM
To: Mike O'Brien
Cc: linuxppc-embedded at lists.linuxppc.org
Subject: Re: Hanging in Init
In message <000101c11ab4$0fc48f60$6865a8c0 at airfiber.com> you wrote:
>
> I have been trying to get a custom PPC860 board up using MonteVista's Hard
> Hat
> 2.0 distribution using a vxWorks bootrom. I have made alot of progress in
> the last
> few days but have got stuck at the point here init is executed. The IMMR
is
> set
> to 0x0220. I ran across some old posts on the list referring to this
> being set
> too low for linux. Could this be the problem? If not does anyone have
any
Sure. Your system will crash as soon as the first user-land program
is running.
See
http://penguinppc.org/usr/embedded/howto/PowerPC-Embedded-HOWTO-10.html#ss10
.2
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de
"The algorithm to do that is extremely nasty. You might want to mug
someone with it." - M. Devine, Computer Science 340
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
