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Re: Mips 4lkecr2

To: Mile Davidovic <>
Subject: Re: Mips 4lkecr2
From: "Maciej W. Rozycki" <>
Date: Mon, 16 May 2005 12:00:02 +0100 (BST)
Cc: "'Linux/MIPS Development'" <>
In-reply-to: <>
Original-recipient: rfc822;
References: <>
On Mon, 16 May 2005, Mile Davidovic wrote:

> I have embedded processor with MIPS 4KECr2 processor and tried to port
> linux-2.6.11-mipscvs-20050313.
> I follow tutorial from linux-mips and add custom code for int handler, time
> ...
> But I have some problem with detecting of cpu. In cpu-probe.c I added:
> cpu_probe_mips with:
>        case PRID_IMP_4KEC:
>        case PRID_IMP_4KECR2:   /* this line is added */
>         c->cputype = CPU_4KEC;
>               c->isa_level = MIPS_CPU_ISA_M32;
> Is it ok ? Did I forgot something?

 Well, the processor is already supported in the current version of Linux.  
Had you chosen it for your port, you wouldn't have had to change anything.

> I have problem with mem_init, here is output log, can You please tell me
> what is problem with this?
> Linux version 2.6.11-mipscvs-20050313-md (
> (gcc version 3.4.2) #207 Mon May 16 10:37:55 CEST 2005
> CPU revision is: 00019064
> Bad page state at __free_pages_ok (in process 'swapper', page 810037c0)
> flags:0x00000000 mapping:00000004 mapcount:0 count:0

 Please retry with the current version and if still failing, then send 
another report.


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