MPC885ADS and 2.6.13-rc5 - nogo ?

[Schaefer-Hutter, Peter]

Replying to myself: My MPC855ADS-Board has 

 -> U-Boot 1.1.2 (Jun 27 2005 - 11:50:05)
 -> CPU:   MPC885ZPnn at 120 MHz: 8 kB I-Cache 8 kB D-Cache FEC present
 -> Board: MPC885ADS rev NR
 -> DRAM:  (8 MB SDRAM)  8 MB

... and 8 MB Flash.

AFAIK there were boards with only 2 MB RAM. Which boards do you guys
have?

Best regards,

 Peter

-----Original Message-----
From: linuxppc-embedded-bounces at ozlabs.org
[mailto:linuxppc-embedded-bounces at ozlabs.org] On Behalf Of
Schaefer-Hutter, Peter
Sent: Monday, August 08, 2005 11:38 AM
To: linuxppc-embedded list
Subject: RE: MPC885ADS and 2.6.13-rc5 - nogo ?

Hello!

> From: aris at cathedrallabs.org [mailto:aris at cathedrallabs.org] 
> Sent: Friday, August 05, 2005 6:26 PM
>
> >  Badness in dma_alloc_init at arch/ppc/kernel/dma-mapping.c:348
> >  Call trace:
> >   [c0005b10] dump_stack+0x18/0x28
> >   [c0003c60] check_bug_trap+0x84/0xac
> >   [c0003de8] ProgramCheckException+0x160/0x1a0
> >   [c0003260] ret_from_except_full+0x0/0x4c
> >   [c01a9f84] dma_alloc_init+0x44/0xa0
> >   [c01a66a4] do_initcalls+0x54/0xfc
> >   [c0002260] init+0x2c/0xf4
> >   [c000533c] kernel_thread+0x44/0x60
> >  NET: Registered protocol family 16
> >  JFFS2 version 2.2. (NAND) (C) 2001-2003 Red Hat, Inc.
> >  Serial: CPM driver $Revision: 0.01 $
> >  ttyCPM0 at MMIO 0xff000a80 (irq = 20) is a CPM UART
> >  ttyCPM1 at MMIO 0xff000a90 (irq = 19) is a CPM UART
> just out of curiosity, try changing CONSISTENT_START to 0xe0000000

Well, then the error in dma_alloc_init goes away.

However, i'm still not able to run 2.6.x on the MPC885ADS.
I'm now using 2.6.13-rc6 with the latest cpm-uart-fixes 
applied. I made the defconfig, set CONSISTENT_START to 0xe0000000
an got:

 Linux version 2.6.13-rc6 (root at rcf02) (gcc version 3.3.2) #5 Mon Aug 8
11:22:18 CEST 2005
 Built 1 zonelists
 Kernel command line: console=ttyCPM0,38400n8 root=/dev/nfs
nfsroot=/home/test/nfs rw
ip=192.168.1.10:192.168.1.1:192.168.1.1:255.255.255.0::eth0:off
 PID hash table entries: 64 (order: 6, 1024 bytes)
 Decrementer Frequency = 450000000/60
 Dentry cache hash table entries: 2048 (order: 1, 8192 bytes)
 Inode-cache hash table entries: 1024 (order: 0, 4096 bytes)
 Memory: 6244k available (1432k kernel code, 332k data, 72k init, 0k
highmem)
 Mount-cache hash table entries: 512
 NET: Registered protocol family 16
 Serial: CPM driver $Revision: 0.01 $
 ttyCPM0 at MMIO 0xff000a80 (irq = 20) is a CPM UART
 ttyCPM1 at MMIO 0xff000a90 (irq = 19) is a CPM UART
 io scheduler noop registered
 PPP generic driver version 2.4.2
 PPP Deflate Compression module registere

Looks like the console does not start (maybe still UART-issues)... 

As some people on this list reported success on MPC885ADS - can somebody

please hit me with the cluebat ?

Best regards, 

  Peter

_______________________________________________
Linuxppc-embedded mailing list
Linuxppc-embedded at ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-embedded