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From: "Eric Cottrell" <wb1hbu@runbox•com>
To: mbergandi@gmail•com
Cc: linuxppc-dev@ozlabs•org, nvbolhuis@aimvalley•nl
Subject: Re: Can not get "new" MPC8313e-RDB to boot "as-shipped" flash image
Date: Sun, 01 Mar 2009 19:58:00 -0500 (EST)	[thread overview]
Message-ID: <E1LdwTo-0004h7-Aw@fenris.runbox.com> (raw)
In-Reply-To: <1c641bc80902241055j33984de6re0f9a887494fa93a@mail.gmail.com>

Hello,

I got brave enough this weekend to try flashing uBoot using uBoot.  I used =
the uBoot image that is in my ltib rootfs/boot directory.  The build is 1.3=
.0 (Dec 22 2008 - 11:19:29) MPC83XX.  It worked.  On reboot the checksum on=
 the uBoot environment was bad so it used the default environment.  I just =
did a saveenv, put in the bootm command with the right flash addresses, and=
 it booted the default flash image.  Next I am going to configure to boot t=
he ltib images in ram.

So the U-Boot 1.3.3 (Dec 8 2008 - 09:51:15) MPC83XX must have been a custom=
 build that did not quite work or needed the additional things in the FDT. =
 I am going to research it before trying a later uBoot version.

So I am good to go.  Thanks for the help.

If there is a Rev C out soon I am going to wait and maybe buy the Rev C.

73 Eric
----- Start Original Message -----
Sent: Tue, 24 Feb 2009 13:55:53 -0500
From: Michael Bergandi <mbergandi@gmail•com>
To: Norbert van Bolhuis <nvbolhuis@aimvalley•nl>
Subject: Re: Can not get "new" MPC8313e-RDB to boot "as-shipped" flash image

>=20
> Hi guys,

I have the Rev B board and I have it working quite well. I'll share what
I have
discovered so far.=20

In Eric's case, the board seems suspect. There is already a Rev C of this
board, but
I am not sure if it is actually available yet. You may want to check on
that.

Regarding U-Boot, mine shipped with v. 1.3.0. The LTIB provided dts files
follow
the original dts format. There is a new dts spec and if you ever intend
to use
a mainline kernel, you will need to use the newer dts provided in the
kernel
source. Did I mention this board has at least basic support in 2.6.28 :).
I have
not determined the extent of the support though.

I have successfully used the provided U-Boot v1.3.0 to boot a 2.6.28
kernel with
the dts-v1 device tree. Hence, I hope that will clear your speculation
about the
device tree being the problem.

I have seen the same problem that you guys have seen where U-Boot gets to
the "Uncompressing kernel ..." then reboots. This happened to me when I
passed the wrong device tree .dtb. I have also had this happen if I made
a change to the kernel config. I haven't been able to determine what
exactly
that I changed that caused the problem though.

Also, if you are feeling adventurous, you can also get the latest U-Boot.
There
is a specifc branch for this board:

$ git clone git://git.denx.de/u-boot-mpc83xx.git

I haven't attempted this since I don't currently have a probe to recovery
a
bad boot loader flash.

Hope this helps,

Mike


----- End Original Message -----

     prev parent reply	other threads:[~2009-03-02  0:58 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-22 23:23 Can not get "new" MPC8313e-RDB to boot "as-shipped" flash image Eric Cottrell
2009-02-24 12:45 ` Norbert van Bolhuis
2009-02-24 14:36   ` Eric Cottrell
2009-02-24 16:29     ` Norbert van Bolhuis
2009-02-24 16:56       ` Eric Cottrell
2009-02-24 18:55   ` Michael Bergandi
2009-03-02  0:58     ` Eric Cottrell [this message]

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