Re: AGL eel 5.0.3 R-Car H3 Starter kit BSP question

Hi Matsui-san,

First a disclaimer: I do not work directly in AGL so the following is generic information but it should help J

What you experience is what I would expect.

r8a7795-es1-h3ulcb.dtb is for the v1.x boards that use WS 1.0/1.1 and so it would not surprise me that you have operational issues using it with a v2.0 board.

r8a7795-h3ulcb.dtb is for the v2.0 boards and WS 2.0 and so would work as you have found.

You can find more info at the elinux.org site for the H3 Starter Kit [1].

[1] https://elinux.org/R-Car/Boards/H3SK

As I said I don’t work in AGL but I suspect the AGL documentation you linked needs an update.

Regarding Yocto BSP versions you should find the version tags in the git rep. I’m unsure if AGL is still using a fork of the upstream Yocto BSP or the upstream directly. They are certainly there in the upstream. Unless eel 5.0.3 is using an older Yocto Project version I would expect the BSP version to be in the 3.x range.

So don’t worry use Image-r8a7795-h3ulcb.dtb with your v2.0 board.

Helpfully that helps, although someone may be along in a minute to say why my generic comments are not 100%.

Regards

Steve

From: automotive-discussions-bounces@xxxxxxxxxxxxxxxxxxxxxxxxx <automotive-discussions-bounces@xxxxxxxxxxxxxxxxxxxxxxxxx> On Behalf Of Kenji Matsui
Sent: 15 August 2018 16:35
To: Walt Miner <wminer@xxxxxxxxxxxxxxxxxxx>
Cc: Rei Kato <rkato@xxxxxxxxxxxxxxx>; Kenji Matsui <kmatsui@xxxxxxxxxxxxxxx>; Hiroki Kawabata <hkawabata@xxxxxxxxxxxxxxx>; Riku Nakamura <rnakamura@xxxxxxxxxxxxxx>; automotive-discussions@xxxxxxxxxxxxxxxxxxxxxxxxx
Subject: Re: [agl-discussions] AGL eel 5.0.3 R-Car H3 Starter kit BSP question

HI Walt,

Thank you very much. Assume it is 2.23.0, strange thing is “Image-r8a7795-es1-h3ulcb.dtb” does not run on my R-Car H3 Ver2.0 Starterkit

For machine h3ulcb (BSP >= 2.19):

setenv load_dtb ext4load mmc 0:1 0x48000000 /boot/Image-r8a7795-es1-h3ulcb.dtb

but “Image-r8a7795-h3ulcb.dtb” runs as expected.

For machine h3ulcb (BSP < 2.19):

setenv load_dtb ext4load mmc 0:1 0x48000000 /boot/Image-r8a7795-h3ulcb.dtb

does anybody know what is the difference above two .dtb ?

Best Regards,

--
****************
Kenji Matsui
Hagiwara America Inc.
38777 W.Six Mile Rd, Suite 307,
Livonia, MI 48152
TEL:+1-734-462-0260
Mobile: +1-248-986-8004
E-mail: kmatsui@xxxxxxxxxxxxxxx
*****************

From: Walt Miner [mailto:wminer@xxxxxxxxxxxxxxxxxxx]
Sent: Wednesday, August 15, 2018 11:23 AM
To: Kenji Matsui <kmatsui@xxxxxxxxxxxxxxx>
Cc: automotive-discussions@xxxxxxxxxxxxxxxxxxxxxxxxx; Rei Kato <rkato@xxxxxxxxxxxxxxx>; Riku Nakamura <rnakamura@xxxxxxxxxxxxxx>; Hiroki Kawabata <hkawabata@xxxxxxxxxxxxxxx>
Subject: Re: [agl-discussions] AGL eel 5.0.3 R-Car H3 Starter kit BSP question

I am not sure the exact the version in 5.0.3, but it is at least 2.23.0 based on this Jira ticket.

https://jira.automotivelinux.org/browse/SPEC-890

Regards,

Walt

On Wed, Aug 15, 2018 at 9:29 AM Kenji Matsui <kmatsui@xxxxxxxxxxxxxxx> wrote:

Hi,

I am on the way to execute AGL eel 5.0.3 on R-Car H3 Ver 2.0 Starter kit by referring below document.

http://docs.automotivelinux.org/docs/getting_started/en/dev/reference/machines/R-Car-Starter-Kit-gen3.html

In the middle of the document, it says below.

For machine h3ulcb (BSP >= 2.19):

setenv load_dtb ext4load mmc 0:1 0x48000000 /boot/Image-r8a7795-es1-h3ulcb.dtb

For machine h3ulcb (BSP < 2.19):

setenv load_dtb ext4load mmc 0:1 0x48000000 /boot/Image-r8a7795-h3ulcb.dtb

Question) How can I know BSP version?

     I tried “Image-r8a7795-es1-h3ulcb.dtb”, it does not work on R-Car H3 Ver2.0 Starter Kit.

     If I use “Image-r8a7795-h3ulcb.dtb”, it works.

    Therefore I am guessing my BSP version is less than 2.19, I am not sure and would like to know how to confirm the BSP version.

Best Regards,

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