[U-Boot-Users] MPC8360 Rev 2 patch?

[U-Boot-Users] MPC8360 Rev 2 patch?

[Steven Hein]

Hello--

I read the recent post regarding the MPC8360 rev 2 patch that
is currently in development for u-boot 1.2.0.    How soon will
that patch be available (or the code submitted to the tree)?
I have a custom board arriving at the end of the week that will
have an 8360 rev2....and it has DDR2 memory so I'll need DDR2
support.    Is there somewhere that I can download the latest
bits to get started?

Thanks,
Steve

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Steve Hein (ssh at sgi.com)              Engineering Diagnostics/Software
Silicon Graphics, Inc.                          
1168 Industrial Blvd.                 Phone: (715) 726-8410
Chippewa Falls, WI 54729              Fax:   (715) 726-6715
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[U-Boot-Users] MPC8360 Rev 2 patch?

[Kim Phillips]

On Mon, 05 Feb 2007 17:15:21 -0600
Steven Hein <ssh@sgi.com> wrote:

> 
> I read the recent post regarding the MPC8360 rev 2 patch that
> is currently in development for u-boot 1.2.0.    How soon will
> that patch be available (or the code submitted to the tree)?
> I have a custom board arriving at the end of the week that will
> have an 8360 rev2....and it has DDR2 memory so I'll need DDR2
> support.    Is there somewhere that I can download the latest
> bits to get started?

it'll be in the tree before you get your board :)

Kim

[U-Boot-Users] MPC8360 Rev 2 patch?

[Steven Hein]

Kim Phillips wrote:

>On Mon, 05 Feb 2007 17:15:21 -0600
>Steven Hein <ssh@sgi.com> wrote:
>
>  
>
>>I read the recent post regarding the MPC8360 rev 2 patch that
>>is currently in development for u-boot 1.2.0.    How soon will
>>that patch be available (or the code submitted to the tree)?
>>I have a custom board arriving at the end of the week that will
>>have an 8360 rev2....and it has DDR2 memory so I'll need DDR2
>>support.    Is there somewhere that I can download the latest
>>bits to get started?
>>    
>>
>
>it'll be in the tree before you get your board :)
>
>Kim
>  
>
Hi Kim,

I just received word that my board will be in my hands
at tomorrow (Friday) morning.    Will the 8360 rev.2 support
be available?

Thanks,
Steve


-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Steve Hein (ssh at sgi.com)              Engineering Diagnostics/Software
Silicon Graphics, Inc.                          
1168 Industrial Blvd.                 Phone: (715) 726-8410
Chippewa Falls, WI 54729              Fax:   (715) 726-6715
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[U-Boot-Users] MPC8360 Rev 2 patch?

[Kim Phillips]

On Thu, 08 Feb 2007 10:28:09 -0600
Steven Hein <ssh@sgi.com> wrote:

> 
> I just received word that my board will be in my hands
> at tomorrow (Friday) morning.    Will the 8360 rev.2 support
> be available?

it's already in the 'mpc83xx' branch on the opensource.freescale.com u-boot-83xx.git tree.  DDR2 seems to be working fine.

I hesitated to broadcast this info since I haven't finished testing it on our boards, plus the patches haven't been posted here yet.

For future reference, the stuff considered stable on mpc83xx will be pulled into the 'upstream' branch.  Once Rev.2 support tests ok, I'll ask WD to pull from the 'upstream' branch.

Kim

[U-Boot-Users] MPC8360 Rev 2 patch?

[Steven Hein]

Kim Phillips wrote:

>On Thu, 08 Feb 2007 10:28:09 -0600
>Steven Hein <ssh@sgi.com> wrote:
>
>  
>
>>I just received word that my board will be in my hands
>>at tomorrow (Friday) morning.    Will the 8360 rev.2 support
>>be available?
>>    
>>
>
>it's already in the 'mpc83xx' branch on the opensource.freescale.com u-boot-83xx.git tree.  DDR2 seems to be working fine.
>
>I hesitated to broadcast this info since I haven't finished testing it on our boards, plus the patches haven't been posted here yet.
>
>For future reference, the stuff considered stable on mpc83xx will be pulled into the 'upstream' branch.  Once Rev.2 support tests ok, I'll ask WD to pull from the 'upstream' branch.
>
>Kim
>  
>
Thanks Kim!    After a little bit of "git for dummies", I figured out how
to grab the mpc83xx branch.     But before your mail, I was just looking
in WD's git tree for the changes--I didn't know that freescale had its
own git trees for u-boot.

One question about the 8360 version.   When I compile it straight up
for the MPC8360EMDS_HOST_66 configuration, I never see any output
at the startup of U-boot.   But if I comment out the open firmware
defines in the include/configs/MPC8360EMDS.h config file, then all works.
Why doesn't this work for me straight up on the board it was compiled for?
(This has been true for all U-boot versions I've tried for the 8360).

Thanks,
Steve

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Steve Hein (ssh at sgi.com)              Engineering Diagnostics/Software
Silicon Graphics, Inc.                          
1168 Industrial Blvd.                 Phone: (715) 726-8410
Chippewa Falls, WI 54729              Fax:   (715) 726-6715
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[U-Boot-Users] MPC8360 Rev 2 patch?

[Kim Phillips]

On Thu, 08 Feb 2007 16:50:50 -0600
Steven Hein <ssh@sgi.com> wrote:

> Thanks Kim!    After a little bit of "git for dummies", I figured out how
> to grab the mpc83xx branch.     But before your mail, I was just looking
> in WD's git tree for the changes--I didn't know that freescale had its
> own git trees for u-boot.

it was set up primarily for WD's convenience, so he could just pull from it.  It's also useful to have avant garde mpc83xx users such as yourself get 'early access.'  Ultimately, though, an mpc83xx tree should be hosted on denx.de.

> 
> One question about the 8360 version.   When I compile it straight up
> for the MPC8360EMDS_HOST_66 configuration, I never see any output
> at the startup of U-boot.   But if I comment out the open firmware
> defines in the include/configs/MPC8360EMDS.h config file, then all works.
> Why doesn't this work for me straight up on the board it was compiled for?
> (This has been true for all U-boot versions I've tried for the 8360).
> 
that's odd - MPC8360EMDS_HOST_66 works fine here and there's nothing obvious I can see in the code that would warrant that sort of behaviour.  Can you provide details?

Kim

[U-Boot-Users] MPC8360 Rev 2 patch?

[Timur Tabi]

Kim Phillips wrote:

>> One question about the 8360 version.   When I compile it straight up
>> for the MPC8360EMDS_HOST_66 configuration, I never see any output
>> at the startup of U-boot.   But if I comment out the open firmware
>> defines in the include/configs/MPC8360EMDS.h config file, then all works.
>> Why doesn't this work for me straight up on the board it was compiled for?
>> (This has been true for all U-boot versions I've tried for the 8360).
>>
> that's odd - MPC8360EMDS_HOST_66 works fine here and there's nothing obvious I can see in the code that would warrant that sort of behaviour.  Can you provide details?

I think the problem is in his device tree.  Either it's missing or incorrect.


-- 
Timur Tabi
Linux Kernel Developer @ Freescale

[U-Boot-Users] MPC8360 Rev 2 patch?

[Steven Hein]

Timur Tabi wrote:

> Kim Phillips wrote:
>
>>> One question about the 8360 version.   When I compile it straight up
>>> for the MPC8360EMDS_HOST_66 configuration, I never see any output
>>> at the startup of U-boot.   But if I comment out the open firmware
>>> defines in the include/configs/MPC8360EMDS.h config file, then all 
>>> works.
>>> Why doesn't this work for me straight up on the board it was 
>>> compiled for?
>>> (This has been true for all U-boot versions I've tried for the 8360).
>>>
>> that's odd - MPC8360EMDS_HOST_66 works fine here and there's nothing 
>> obvious I can see in the code that would warrant that sort of 
>> behaviour.  Can you provide details?
>
>
> I think the problem is in his device tree.  Either it's missing or 
> incorrect.
>
>
I'm sure that you are right, Timur.    Every version of U-boot I've 
tried to use,
all the way back to 1.3.x, for the 8360 as well as the 8349EMDS, has had
the same problem.   And as soon as I comment out the OF stuff in the config
file, all is well.   (I haven't looked into it in detail, so I can't 
provide a lot
of info at the moment.     ......and my new custom MPC8358 board arrived
just about an your ago!   Friday afternoon, right on time!   ;-) ).

At this point, I know *nothing* about device trees or OF......
Is this something that lives outside of u-boot?

I guess someone probably needs to point me to some "device trees
for dummies" info........

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Steve Hein (ssh at sgi.com)              Engineering Diagnostics/Software
Silicon Graphics, Inc.                          
1168 Industrial Blvd.                 Phone: (715) 726-8410
Chippewa Falls, WI 54729              Fax:   (715) 726-6715
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[U-Boot-Users] MPC8360 Rev 2 patch?

[Medve Emilian-EMMEDVE1]

Hi Steve,


Try Documentation/powerpc/booting-without-of.txt in the Linux tree. You
can find some device trees in arch/powerpc/boot/dts. You can get/clone
the dtc compiler from git://www.jdl.com/software/dtc.git.


Cheers,
Emil. 


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-----Original Message-----
From: u-boot-users-bounces@lists.sourceforge.net
[mailto:u-boot-users-bounces at lists.sourceforge.net] On Behalf Of Steven
Hein
Sent: Friday, February 09, 2007 3:44 PM
To: Tabi Timur-B04825
Cc: u-boot-users at lists.sourceforge.net; Phillips Kim-R1AAHA
Subject: Re: [U-Boot-Users] MPC8360 Rev 2 patch?

Timur Tabi wrote:

> Kim Phillips wrote:
>
>>> One question about the 8360 version.   When I compile it straight up
>>> for the MPC8360EMDS_HOST_66 configuration, I never see any output
>>> at the startup of U-boot.   But if I comment out the open firmware
>>> defines in the include/configs/MPC8360EMDS.h config file, then all 
>>> works.
>>> Why doesn't this work for me straight up on the board it was 
>>> compiled for?
>>> (This has been true for all U-boot versions I've tried for the
8360).
>>>
>> that's odd - MPC8360EMDS_HOST_66 works fine here and there's nothing 
>> obvious I can see in the code that would warrant that sort of 
>> behaviour.  Can you provide details?
>
>
> I think the problem is in his device tree.  Either it's missing or 
> incorrect.
>
>
I'm sure that you are right, Timur.    Every version of U-boot I've 
tried to use,
all the way back to 1.3.x, for the 8360 as well as the 8349EMDS, has had
the same problem.   And as soon as I comment out the OF stuff in the
config
file, all is well.   (I haven't looked into it in detail, so I can't 
provide a lot
of info at the moment.     ......and my new custom MPC8358 board arrived
just about an your ago!   Friday afternoon, right on time!   ;-) ).

At this point, I know *nothing* about device trees or OF......
Is this something that lives outside of u-boot?

I guess someone probably needs to point me to some "device trees
for dummies" info........

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Steve Hein (ssh at sgi.com)              Engineering Diagnostics/Software
Silicon Graphics, Inc.                          
1168 Industrial Blvd.                 Phone: (715) 726-8410
Chippewa Falls, WI 54729              Fax:   (715) 726-6715
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


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[U-Boot-Users] MPC8360 Rev 2 patch?

[Timur Tabi]

Steven Hein wrote:

> At this point, I know *nothing* about device trees or OF......
> Is this something that lives outside of u-boot?

Yes.  The device tree source is in arch/powerpc/boot/dts in the kernel.  You 
compile that with dtc into a dtb, transfer the dtb to U-Boot via tftp, and then 
boot the kernel, passing the dtb as the third parameter.

> I guess someone probably needs to point me to some "device trees
> for dummies" info........

I don't know where such a document exists.

-- 
Timur Tabi
Linux Kernel Developer @ Freescale

[U-Boot-Users] MPC8360 Rev 2 patch?

[Ben Warren]

Steven,

On Fri, 2007-02-09 at 15:53 -0600, Timur Tabi wrote:

> Yes.  The device tree source is in arch/powerpc/boot/dts in the kernel.  You 
> compile that with dtc into a dtb, transfer the dtb to U-Boot via tftp, and then 
> boot the kernel, passing the dtb as the third parameter.

If you want your board to be self-contained, put the .dtb file in a
flash sector.  I expect this is how most people will use it 'in the
field'.  As Timur alludes to, the boot command is:

bootm <kernel address> <initrd address> <dtb address>

If you don't have an initrd, use '-'

If you're still confused I'd be happy to help with the details.

This whole U-boot/device tree/linux process is sorely lacking in
documentation.  The 'booting-without-of.txt' file is nice and all, but
it's jibberish to people who are just starting out.

Having figured this out the hard way, maybe I'll put together a 'for
dummies' document.

regards,
Ben