Marvell 88F6281 Reference design

Marvell 88F6281 Reference design

[Eddie Dawydiuk]

Hello,

I have a Marvell 88F6281 Reference design board I'm trying to compile a 2.6.28 
kernel for. Although, the machine id check is failing. The error is as follows

Uncompressing 
Linux.............................................................................................................................
. done, booting the kernel.

Error: unrecognized/unsupported machine ID (r1 = 0x0000020f).

Available machine support:

ID (hex)        NAME
00000690        Marvell DB-88F6281-BP Development Board
00000691        Marvell RD-88F6192-NAS Development Board
00000692        Marvell RD-88F6281 Reference Board

Please check your kernel config and/or bootloader.

I'm going to comment out this check temporarily(arch/arm/head.S), but wanted to 
notify you of this...

Please CC me personally with any responses.

-- 
Best Regards,
________________________________________________________________
  Eddie Dawydiuk, Technologic Systems | voice:  (480) 837-5200
  16525 East Laser Drive 	     | fax:    (480) 837-5300
  Fountain Hills, AZ 85268            | web: www.embeddedARM.com

Re: Marvell 88F6281 Reference design

[Lennert Buytenhek]

On Tue, Apr 28, 2009 at 09:00:12AM -0700, Eddie Dawydiuk wrote:

> Hello,

Hi,


> I have a Marvell 88F6281 Reference design board I'm trying to compile a 
> 2.6.28 kernel for. Although, the machine id check is failing. The error is 
> as follows
> 
> Uncompressing 
> Linux.............................................................................................................................
> . done, booting the kernel.
> 
> Error: unrecognized/unsupported machine ID (r1 = 0x0000020f).
> 
> Available machine support:
> 
> ID (hex)        NAME
> 00000690        Marvell DB-88F6281-BP Development Board
> 00000691        Marvell RD-88F6192-NAS Development Board
> 00000692        Marvell RD-88F6281 Reference Board
> 
> Please check your kernel config and/or bootloader.

This is because the boot loader passes in the wrong machine ID.

If you have the u-boot "arcNumber" parameter, try setting that to
the correct machine ID before booting the kernel.  Otherwise, you
can prepend a bit of code to the zImage that sets the machine ID to
the right value, e.g. for the 6281 RD:

	(echo -en "\x06\x1c\xa0\xe3\x92\x10\x81\xe3"; cat zImage) > zImage.rd88f6281

and then use mkimage on zImage.rd88f6281 to create a uImage that you
can boot on the board.