[meta-ti] Poky and meta-ti advice for Beaglebone Black

[Tsai, Matt]

Hi Denys,

Thank you for the suggestions. I used the poky tag "rocko-18.0.3" and meta-ti "ti2018.03" to build core-image-base. Two manual steps need to be done for it to work:
- Manually deploy modules-am335x-evm.tgz to the target rootfs.
- Manually run "depmod" to create the module dependency database on the target. 

Questions:
1. I was under the impresstion that core-image-base will install modules to into rootfs automatically, but it did not do that. How do we install them on the rootfs automatically in the build system?
2. How do we create module dependency database in the rootfs automatically in the build system, not on the target?


Thank you for your help!

-----Original Message-----
From: Denys Dmytriyenko [mailto:denys at ti.com] 
Sent: Wednesday, September 26, 2018 12:35 PM
To: Tsai, Matt <matt.tsai at thermofisher.com>
Cc: Leo Meza <leo.e.meza at gmail.com>; meta-ti at yoctoproject.org
Subject: Re: [meta-ti] Poky and meta-ti advice for Beaglebone Black

CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.


On Wed, Sep 26, 2018 at 06:27:10PM +0000, Tsai, Matt wrote:
> Leo,
>
> Thanks for sharing the experience.
> Questions:
>
>   1.  Do you set MACHINE ?= “am3335x-evm” in local.conf and build
>   core-image-minimal? Or other image target is used?

Don't use core-image-minimal - it won't install modules or DTBs into rootfs automatically. You'd have to install those manually. Or use at least core-image-base or some custom image.


>   2.  Do you have to modify anything to make Linux OS (not bootloader)
>   Ethernet and USB to work?

Shouldn't need to.


> I used poky tag “sumo-19.0.0” and meta-ti tag “ti2018.02” and set 
> MACHINE ?= “beaglebone” to build core-image-minimal.

Please use matching branches - i.e. "rocko" from all branches.
There were recent reports that "beaglebone" machine had some boot issues.
Use "am335x-evm" instead - it does support Beaglebone.


> The USB host does not work. I  wonder if I am using a good base to 
> start with.

Check if you have corresponding modules installed and loaded.


> Also, a question about the Linux kernel 
> meta-ti/recipes-kernel/linux/linux-ti-staging-4.14/defconfig content:
> The original in “ti2018.02” tag is “use-tisdk-config= ti_sdk_omap2_release”.
> But I also see people changing it to “use-tisdk-config= 
> ti_sdk_am3x_release”. I tried both, but USB host working. So I wonder 
> what is the correct one to use?

The defconfig is being selected based on the machine you build for. When building "am335x-evm" or "beaglebone", the defconfig with ti_sdk_am3x_release is used.


> Thank you for your help!
>
>
> From: Leo Meza [mailto:leo.e.meza at gmail.com]
> Sent: Wednesday, September 26, 2018 6:28 AM
> To: Tsai, Matt <matt.tsai at thermofisher.com>
> Cc: meta-ti at yoctoproject.org
> Subject: Re: [meta-ti] Poky and meta-ti advice for Beaglebone Black
>
> CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.
>
> Matt,
>
> I've been having some success with the "rocko" branches (meta-ti, etc), and using the "am335x-evm" machine for beaglebone black.
>
> I haven't done any i2c yet, but Ethernet and USB are working fine. I'm still on the left of the learning curve though, maybe someone else on this thread has better advice.
>
> -Leo
>
> On Tue, Sep 25, 2018, 4:19 PM Tsai, Matt <matt.tsai at thermofisher.com<mailto:matt.tsai at thermofisher.com>> wrote:
> Hi all,
>
> I am new to Yocto and was trying to use poky and meta-ti to customize Linux to run on Beaglebone Black. There are a couple of questions I encountered, hopefully I can get some advice here:
>
>   1.  What is the recommended poky and meta-ti branch/tag to use?
>   2.  If we need to enable some common device support such as Ethernet, USB host port, I2C, …etc., what do we need to modify on these recommended poky and meta-ti software?
>
> Thank you for your help!
>
> --
> _______________________________________________
> meta-ti mailing list
> meta-ti at yoctoproject.org<mailto:meta-ti at yoctoproject.org>
> https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.yoctoprojec
> t.org_listinfo_meta-2Dti&d=DwIDaQ&c=q6k2DsTcEGCcCb_WtVSz6hhIl8hvYssy7s
> H8ZwfbbKU&r=LfbDghM-XW_5RT-h77pAoNBiz4zBr-sjgQI-UHuV1XU&m=ztoRzwEqUnXT
> _d_hVm6COtAO29iQxsRzicIHGlpZGLI&s=4Rm9NIgBG62W0AEvKqKwgfSKpEBTN5skKehV
> -26-zZs&e=<https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.
> yoctoproject.org_listinfo_meta-2Dti&d=DwMFaQ&c=q6k2DsTcEGCcCb_WtVSz6hh
> Il8hvYssy7sH8ZwfbbKU&r=LfbDghM-XW_5RT-h77pAoNBiz4zBr-sjgQI-UHuV1XU&m=U
> uF_TrnC3fiw_PH3rBROKHlrXnfbfuQsyAh86iV9mU8&s=CNQxEhuNF6ot6MXd-CTbz-U3Z
> LFsc_vqgRx_lnW3HkM&e=>

> --
> _______________________________________________
> meta-ti mailing list
> meta-ti at yoctoproject.org
> https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.yoctoprojec
> t.org_listinfo_meta-2Dti&d=DwIDaQ&c=q6k2DsTcEGCcCb_WtVSz6hhIl8hvYssy7s
> H8ZwfbbKU&r=LfbDghM-XW_5RT-h77pAoNBiz4zBr-sjgQI-UHuV1XU&m=ztoRzwEqUnXT
> _d_hVm6COtAO29iQxsRzicIHGlpZGLI&s=4Rm9NIgBG62W0AEvKqKwgfSKpEBTN5skKehV
> -26-zZs&e=