Patchwork [mpc5125-twr,1/2] New machine mpc5125-twr, Freescale TWR-MPC5125-KIT

Freescale Development Kit TWR-MPC5125-KIT

Vendor page:  http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=TWR-MPC5125-KIT

The name mpc5125-twr is used by Freescale in the Linux kernel for this board.

Signed-off-by: Jan Kobler <eng1@koblersystems.de>
---
 MAINTAINERS                       |    2 +-
 conf/distro/include/sane-feed.inc |    1 +
 conf/machine/mpc5125-twr.conf     |   27 +++++++++++++++++++++++++++
 contrib/angstrom/sort.sh          |    2 +-
 recipes/linux/linux_2.6.29.bb     |    9 +++++++++
 5 files changed, 39 insertions(+), 2 deletions(-)
 create mode 100644 conf/machine/mpc5125-twr.conf

On 04/08/2011 12:33 PM, Jan Kobler wrote:
> Freescale Development Kit TWR-MPC5125-KIT
> 
> Vendor page:  http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=TWR-MPC5125-KIT
> 
> The name mpc5125-twr is used by Freescale in the Linux kernel for this board.
> 
> Signed-off-by: Jan Kobler <eng1@koblersystems.de>

First, the linux_VER.bb change should be part of the patch that bring in
the patches for the board.  Second, I see upstream there's a
mpc512x_defconfig.  How much of this platform works upstream with a more
recent kernel?  Thanks!

Hi,

1. I wanted to make a clear distinction between what I have written  and
what I have taken from
http://www.freescale.com/files/soft_dev_tools/software/board_support_packages/TWRMPC5125LinuxBSP.rar
which contains the Linux kernel 2.6.29-v2010041601 for the TWR-MPC5125-KIT.

Therefore linux_VER.bb is in  [mpc5125-twr 1/2], because I have changed
it. Otherwise I would put it together in one patch.

2. I have tried to provide the same for Openembedded as Freescale is
currently shipping on their web page
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=TWR-MPC5125-KIT&fpsp=1&tab=Design_Tools_Tab.
I have not tried to port it to a more recent kernel.

Is there already a more recent kernel, which contains mpc5125-twr support?

Best regards

Jan

Hi,

1. I have described the usage and the current state of the BSP of the
new machine  mpc5125-twr in a tutorial and wanted to publish it on
gentoo-wiki.com. Unfortunately gentoo-wiki.com is currently  not accessible.

Here is the tutorial in text form.

2. I can provide it also as html file, if someone wants it.

3. I would like to publish this tutorial under
http://www.openembedded.org/index.php/Category:Machine
because I think this would be the right place for it.
How can I get write access to the openembedded-wiki?

Best regards

Jan

On 04/08/2011 01:02 PM, Jan Kobler wrote:
> Hi,
> 
> 1. I wanted to make a clear distinction between what I have written  and
> what I have taken from
> http://www.freescale.com/files/soft_dev_tools/software/board_support_packages/TWRMPC5125LinuxBSP.rar
> which contains the Linux kernel 2.6.29-v2010041601 for the TWR-MPC5125-KIT.
> 
> Therefore linux_VER.bb is in  [mpc5125-twr 1/2], because I have changed
> it. Otherwise I would put it together in one patch.
> 
> 2. I have tried to provide the same for Openembedded as Freescale is
> currently shipping on their web page
> http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=TWR-MPC5125-KIT&fpsp=1&tab=Design_Tools_Tab.
> I have not tried to port it to a more recent kernel.
> 
> Is there already a more recent kernel, which contains mpc5125-twr support?

It's possible that yes, this hardware is supported in 2.6.37.

Hi,

you can find the tutorial on gentoo-wiki.com now:
http://en.gentoo-wiki.com/wiki/Freescale_TWR-MPC5125/Openembedded

It describes the usage and the current state of the BSP for the new
machine  mpc5125-twr.

I hope it helps.

Best regards

Jan

on 08.04.2011 23:37 Tom Rini said the following:
> On 04/08/2011 01:02 PM, Jan Kobler wrote:
>> 2. I have tried to provide the same for Openembedded as Freescale is
>> currently shipping on their web page
>> http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=TWR-MPC5125-KIT&fpsp=1&tab=Design_Tools_Tab.
>> I have not tried to port it to a more recent kernel.
>>
>> Is there already a more recent kernel, which contains mpc5125-twr support?
> 
> It's possible that yes, this hardware is supported in 2.6.37.
> 


The support in 2.6.37 seems to be for the CPU Freescale MPC5121 and the
board ADS512101. The support files for MPC5125 and TWR-MPC5125 are
missing. The names TWR-MPC5125 or "mpc5125-twr are nowhere mentioned.

E.g linux-2.6.29/arch/powerpc/boot/dts/mpc5125-twr.dts is missing in
linux-2.6.37

linux-2.6.37/arch/powerpc/boot/dts/mpc5121ads.dts is different to
linux-2.6.29/arch/powerpc/boot/dts/mpc5125-twr.dts

The CPUs MPC5125 and MPC5121 are similar, but are not the same.
Currently I don't know the exact differences and cannot decide which
code for MPC5121 runs also on MPC5125.

Best regards

Jan