Yes, LGTM if your M3 boards are v1 or v2 .
To summarize:
* r8a77951 is for H3
* r8a77960 is for M3 v1/v2
* r8a77961 is for M3 v3
And I also expect the new uboot to be able to load "old" kernel/dtb configs
(LL). But that's a good point: this needs some testing. Ronan will report his
findings ASAP on this topic.
Best,
---
Stephane Desneux - CTO - IoT.bzh
stephane.desneux@xxxxxxx - www.iot.bzh
On 13/10/2021 17:07, Jan-Simon Moeller wrote:
So the current changes will be then:
for h3:
-{%- set dtb = dtb|default("r8a7795-h3ulcb-4x2g.dtb") %}
+{%- set dtb = dtb|default("r8a77951-ulcb-h3ulcb.dtb") %}
for m3:
-{%- set dtb = dtb|default("r8a7796-m3ulcb.dtb") %}
+{%- set dtb = dtb|default("r8a77960-ulcb-m3ulcb.dtb") %}
and respective -kf variants.
Best regards,
Jan-Simon
------
Jan-Simon Möller
AGL Release Manager
The Linux Foundation
Visit us at:
www.automotivegradelinux.org
lists.automotivelinux.org
www.linuxfoundation.org
On Wed, Oct 13, 2021 at 4:54 PM Jan Simon Moeller via
lists.automotivelinux.org
<jsmoeller=linuxfoundation.org@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Hi Kurokawa-san,
thanks for the clarification. Please see the question below:
On Wed, Oct 13, 2021 at 2:45 PM Harunobu Kurokawa
<harunobu.kurokawa.dn@xxxxxxxxxxx> wrote:
Sorry inconvenience due to big change about dtb file name.
Since latest u-boot can detect memory size automatically then latest kernel doesn't prepare each memory size variation device-tree file.
moreover, we stopped to use "-es1" name.
Regarding starter Kit and dtb relationship is described here.
https://elinux.org/R-Car/Boards/Yocto-Gen3/v5.5.0#Relationship_diagram_between_each_SK_board_and_DTB_file_in_Yocto_v5.5.0
Kingfisher case :
https://elinux.org/R-Car/Boards/Kingfisher/Yocto-Gen3/v5.5.0#Relationship_diagram_between_each_SK_board_and_DTB_file_in_Yocto_v5.5.0
# or should that be r8a77861-ulcb ??
existing M3ulcb is ver1.0 then you(and CI) should use "r8a77960-ulcb*.dtb"
# 61 is correct ??
We will optimize them to reduce.
old: r8a7795-h3ulcb-4x2g.dtb
new ???
-->> Here we used to differ the dtb for the 4x2g variant with 8GB,
this is no longer built - which one do I use now ? <<--
If you/user update new u-boot, no need to prepare memory size variation.
Then, r8a77951-ulcb.dtb support both 4gb and 8gb starter Kit.
Excellent. That is a great simplification.
CI related question: So we need to reflash the firmware - ok no problem.
Do you know if a newer u-boot from BSP 5.5 can boot an older
kernel/dtb combination then ?
Because if we reflash and run e.g. CI jobs for lamprey we would still
use the old kernel/dtb combination.
Best,
Jan-Simon
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