Re: OpenBMC on Raspberry PI 3.

[Javier Romero <xavinux@gmail.com>]

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Andrew,

"*More generally, knowledge of Python (Yocto/bitbake, some OpenBMC
userspace), C (u-boot, kernel, qemu, also requires a some comfort with
assembler) and C++ (most of the phosphor reference userspace applications)
is useful.*"

I see, but I'm not a programmer, have start by building an image of Yocto
for the Raspberry PI to learn more about Yocto, Poky and bitbake. Links you
provided are very welcome and useful!


Yi,



*"The original target was to build an OpenBMC image for RaspberryPi, but I
never tested on a real hardware.*
I've the Raspberry PI 3 at disposal for testing on a real hardware.

*More work is required to run OpenBMC on a Raspberry Pi. The
"meta-phosphor" layer has been changed since that time, we need to update
RaspberryPi configurations accordingly."*

Something I can help and with this although Im not a programmer?

Thanks for your answers and kind attention.

Regards,




*Javier Romero*

*E-mail: xavinux@gmail.com <xavinux@gmail.com>*

*Skype: xavinux*


2017-10-09 6:39 GMT-03:00 Yi TZ Li <shliyi@cn.ibm.com>:

> Javier,
>
> Andrew has mentioned the cause of the bug.
>
> When I added the RaspberryPi configure to OpenBMC, I referred to
> configuration of other boards, like:
> "meta-openbmc-machines/meta-evb/meta-evb-aspeed/meta-evb-ast2500/conf",
> you might also refer to other working machines.
>
> The original target was to build an OpenBMC image for RaspberryPi, but I
> never tested on a real hardware.
> More work is required to run OpenBMC on a Raspberry Pi.
>
> The "meta-phosphor" layer has been changed since that time, we need to
> update RaspberryPi configurations accordingly.
>
> Thanks,
> -Yi
>
> > From: Andrew Jeffery <andrew@aj.id.au>
> > To: Javier Romero <xavinux@gmail.com>
> > Cc: OpenBMC Maillist <openbmc@lists.ozlabs.org>
> > Date: 09/10/2017 02:41 PM
> > Subject: Re: OpenBMC on Raspberry PI 3.
> > Sent by: "openbmc" <openbmc-bounces+shliyi=cn.ibm.com@lists.ozlabs.org>
> >
> > On Sun, 2017-10-08 at 23:57 -0300, Javier Romero wrote:
> > > Andrew,
> > >
> > > Thans for your answer.
> > >
> > > Bug reported: https://github.com/openbmc/openbmc/issues/2434
> > >
> > > I`d like to try to cook up a patch, but do I need to know a specific
> > > language programming to do this ?
> >
> > Hmm, good question. This is probably a bug in how a bitbake
> > configuration/recipe configures the kernel. As such I'd suggest getting a
> > handle on Yocto, which is the build and configuration system we
> use.Here's the
>
> > quick start guide:
> >
> > http://www.yoctoproject.org/docs/2.1/yocto-project-qs/
> yocto-project-qs.html
> >
> > There's also a rather daunting Mega Manual, which is useful as a
> reference
> > (rather than reading the whole thing):
> >
> > http://www.yoctoproject.org/docs/2.1/mega-manual/mega-manual.html
> >
> > Back to the bug itself, from the output that you gave I expect it's some
> issue
> > with the following directive:
> >
> > https://github.com/openbmc/openbmc/blob/master/meta-phosphor/conf/
> > distro/openbmc-phosphor.conf#L57
> >
> > i.e. the issue is that that linux-raspberrypi (the kernel recipe used
> for the
> > raspberry pi[1][2]) doesn't have a 'phosphor-gpio-keys' feature. The
> implicit
> > assumption is that the configuration will be using the linux-obmc
> > tree[3][4][5], which
> > is our fork of the kernel (primarily for Aspeed SoC support).
> >
> > More generally, knowledge of Python (Yocto/bitbake, some OpenBMC
> userspace), C
> > (u-boot, kernel, qemu, also requires a some comfort with assembler)
> > and C++ (most
> > of the phosphor reference userspace applications) is useful.
> >
> > Hope that helps.
> >
> > Andrew
> >
> > [1] https://github.com/openbmc/openbmc/blob/
> > 4f2d85233d23eedaf1d4846d3d861ba28bc49b00/import-layers/meta-
> > raspberrypi/recipes-kernel/linux/linux-raspberrypi_4.4.bb
> > [2] https://github.com/openbmc/openbmc/blob/
> > 4f2d85233d23eedaf1d4846d3d861ba28bc49b00/import-layers/meta-
> > raspberrypi/recipes-kernel/linux/linux-raspberrypi.inc
> > [3] https://github.com/openbmc/openbmc/blob/
> > 4f2cddf103aaca6df26ddb766655fdf49c56a6ae/meta-phosphor/common/
> > recipes-kernel/linux/linux-obmc_4.10.bb
> > [4] https://github.com/openbmc/openbmc/blob/
> > 4f2cddf103aaca6df26ddb766655fdf49c56a6ae/meta-phosphor/common/
> > recipes-kernel/linux/linux-obmc.inc[attachment "signature.asc"
> > deleted by Yi TZ Li/China/IBM]
>
>

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