It seems absurd that this hasn't been fixed in 5 years!  I know that
the pmax port (and machines) are somewhat moribund but still.

 I have a 5000/200 that I want to bring up sometime in the next couple
of months but I'm wondering if I'm going to face this issue.

 Nice work Dennis.

On 10/1/07, Dennis Grevenstein <dennis.grevenstein@gmail.com> wrote:
> Hi,
>
> I had a problem with NetBSD on my DECstation 3100.
> This is a model from 1989 with a MIPS R2000A CPU.
> NetBSD wouldn't boot and panic with:
>
> panic: CPU type (0x216) not supported
>
> After a little more research on the topic I found this:
> http://mail-index.netbsd.org/port-pmax/2002/11/20/0000.html
>
> Seems like NetBSD refuses to boot, because it doesn't know the
> CPU. I'm not sure why this is the case, but since I am obiously not
> the only one with a DECstation which has that kind of CPU, I finally
> decided to add this to the NetBSD kernel.
>
> I've compiled a 3.1 kernel with the changes on a 5000/150 and now
> my little PMAX boots up fine.
>
> Dennis
>
>
> --- orig_netbsd/src/sys/arch/mips/mips/mips_machdep.c   2005-09-12
> 00:10:13.000000000 +0200
> +++ mod_pmax/src/sys/arch/mips/mips/mips_machdep.c      2007-10-01
> 01:40:31.000000000 +0200
> @@ -251,6 +251,8 @@
>  static const struct pridtab cputab[] = {
>         { 0, MIPS_R2000, -1, -1,                CPU_ARCH_MIPS1, 64,
>           CPU_MIPS_NO_LLSC,                     "MIPS R2000 CPU"        },
> +        { 0, MIPS_R3000, MIPS_REV_R2PMAX, -1,    CPU_ARCH_MIPS1, 64,
> +          CPU_MIPS_NO_LLSC,                     "MIPS R2000A CPU"        },
>         { 0, MIPS_R3000, MIPS_REV_R3000, -1,    CPU_ARCH_MIPS1, 64,
>           CPU_MIPS_NO_LLSC,                     "MIPS R3000 CPU"        },
>         { 0, MIPS_R3000, MIPS_REV_R3000A, -1,   CPU_ARCH_MIPS1, 64,
>
> --- orig_netbsd/src/sys/arch/mips/include/cpuregs.h     2003-10-30
> 00:41:10.000000000 +0100
> +++ mod_pmax/src/sys/arch/mips/include/cpuregs.h        2007-10-01
> 01:35:35.000000000 +0200
> @@ -736,6 +736,7 @@
>   */
>
>  /* For MIPS_R3000 */
> +#define MIPS_REV_R2PMAX                0x16    /* R2000A used in some PMAXen */
>  #define        MIPS_REV_R3000          0x20
>  #define        MIPS_REV_R3000A         0x30
>
>
>
> --
> Don't suffer from insanity...
> Enjoy every minute of it.
>


-- 
Gordon Zaft
zaft@zaft.org (preferred)
gordonzaft@gmail.com