Re: [isar-cip-core][PATCH] Add support for Renesas rzt2h-evk platform

On 06.07.26 13:29, Hung Tran wrote:
> Hi Jan,
> 
>> -----Original Message-----
>> From: Jan Kiszka <[email protected]>
>> Sent: Monday, July 6, 2026 4:13 PM
>> To: Hung Tran <[email protected]>; [email protected]
>> Subject: Re: [isar-cip-core][PATCH] Add support for Renesas rzt2h-evk
>> platform
>>
>> On 30.06.26 10:57, Hung Tran wrote:
>>> rzt2h-evk is the new reference platform for CIP project.
>>> It uses Renesas RZ/T2H SoC, based on armv8.2 architecture.
>>> This platform is only supported from CIP Linux 6.12.
>>>
>>> Signed-off-by: Hung Tran <[email protected]>
>>> ---
>>>  Kconfig                           | 14 ++++++++++----
>>>  conf/machine/rzt2h-evk.conf       | 18 ++++++++++++++++++
>>>  kas/board/rzt2h-evk.yml           | 15 +++++++++++++++
>>>  wic/rzt2h-evk-efibootguard.wks.in | 14 ++++++++++++++
>>>  wic/rzt2h-evk.wks                 | 17 +++++++++++++++++
>>>  5 files changed, 74 insertions(+), 4 deletions(-)  create mode 100644
>>> conf/machine/rzt2h-evk.conf  create mode 100644
>>> kas/board/rzt2h-evk.yml  create mode 100644
>>> wic/rzt2h-evk-efibootguard.wks.in  create mode 100644
>>> wic/rzt2h-evk.wks
>>>
>>> diff --git a/Kconfig b/Kconfig
>>> index 44f2337..879a31d 100644
>>> --- a/Kconfig
>>> +++ b/Kconfig
>>> @@ -119,6 +119,11 @@ config TARGET_BEAGLEV_FIRE
>>>  	select ARCH_RISCV64
>>>  	select HAS_SWUPDATE
>>>
>>> +config TARGET_RZT2H
>>> +	bool "RZ/T2H EVK"
>>> +	select ARCH_ARM64
>>> +	select HAS_SWUPDATE
>>> +
>>>  endchoice
>>>
>>>  config KAS_INCLUDE_BOARD
>>> @@ -134,6 +139,7 @@ config KAS_INCLUDE_BOARD
>>>  	default "kas/board/iwg20m.yml" if TARGET_IWG20D
>>>  	default "kas/board/qemu-riscv64.yml" if TARGET_QEMU_RISCV64
>>>  	default "kas/board/beaglev-fire.yml" if TARGET_BEAGLEV_FIRE
>>> +	default "kas/board/rzt2h-evk.yml" if TARGET_RZT2H
>>>
>>>  comment "Kernel options"
>>>
>>> @@ -144,21 +150,21 @@ choice
>>>  config KERNEL_4_4
>>>  	bool "Kernel 4.4.x-cip"
>>>  	depends on !ARCH_ARM64 && !ARCH_RISCV64
>>> -	depends on !TARGET_TI_AM62PX_SK
>>> +	depends on !TARGET_TI_AM62PX_SK && !TARGET_RZT2H
>>
>> Hmm, both target exclusions should actually be redundant to !ARCH_ARM64
>> - missed that before.
> 
> You are right, I did not notice that either.
> I will resend the patch with this part removed.
> 
>>
>>>  	depends on !DEBIAN_TRIXIE
>>>
>>>  config KERNEL_4_19
>>>  	bool "Kernel 4.19.x-cip"
>>>  	depends on !ARCH_RISCV64
>>> -	depends on !TARGET_TI_AM62PX_SK
>>> +	depends on !TARGET_TI_AM62PX_SK && !TARGET_RZT2H
>>>
>>>  config KERNEL_5_10
>>>  	bool "Kernel 5.10.x-cip"
>>> -	depends on !TARGET_TI_AM62PX_SK && !TARGET_BEAGLEV_FIRE
>>> +	depends on !TARGET_TI_AM62PX_SK && !TARGET_BEAGLEV_FIRE &&
>>> +!TARGET_RZT2H
>>>
>>>  config KERNEL_6_1
>>>  	bool "Kernel 6.1.x-cip"
>>> -	depends on !TARGET_TI_AM62PX_SK && !TARGET_BEAGLEV_FIRE
>>> +	depends on !TARGET_TI_AM62PX_SK && !TARGET_BEAGLEV_FIRE &&
>>> +!TARGET_RZT2H
>>>
>>>  config KERNEL_6_12
>>>  	bool "Kernel 6.12.x-cip"
>>> diff --git a/conf/machine/rzt2h-evk.conf b/conf/machine/rzt2h-evk.conf
>>> new file mode 100644 index 0000000..5cfbfa5
>>> --- /dev/null
>>> +++ b/conf/machine/rzt2h-evk.conf
>>> @@ -0,0 +1,18 @@
>>> +#
>>> +# CIP Core, generic profile
>>> +#
>>> +# Copyright (c) 2026 Renesas Electronics Corporation # # Authors:
>>> +#  Hung Tran <[email protected]> # # SPDX-License-Identifier:
>>> +MIT #
>>> +
>>> +DISTRO_ARCH = "arm64"
>>> +
>>> +IMAGE_FSTYPES ?= "wic"
>>> +
>>> +USE_CIP_KERNEL_CONFIG = "1"
>>> +DTB_FILES = "r9a09g077m44-rzt2h-evk.dtb"
>>> +IMAGE_BOOT_FILES = "${KERNEL_IMAGE} ${DTB_FILES}"
>>> diff --git a/kas/board/rzt2h-evk.yml b/kas/board/rzt2h-evk.yml new
>>> file mode 100644 index 0000000..90261dc
>>> --- /dev/null
>>> +++ b/kas/board/rzt2h-evk.yml
>>> @@ -0,0 +1,15 @@
>>> +#
>>> +# CIP Core, generic profile
>>> +#
>>> +# Copyright (c) 2026 Renesas Electronics Corporation # # Authors:
>>> +#  Hung Tran <[email protected]> # # SPDX-License-Identifier:
>>> +MIT #
>>> +
>>> +header:
>>> +  version: 14
>>> +
>>> +machine: rzt2h-evk
>>> diff --git a/wic/rzt2h-evk-efibootguard.wks.in b/wic/rzt2h-evk-
>> efibootguard.wks.in
>>> new file mode 100644
>>> index 0000000..ca18bec
>>> --- /dev/null
>>> +++ b/wic/rzt2h-evk-efibootguard.wks.in
>>> @@ -0,0 +1,14 @@
>>> +# Copyright (c) 2026 Renesas Electronics Corporation
>>> +#
>>> +# SPDX-License-Identifier: MIT
>>> +
>>> +include ebg-sysparts.inc
>>> +
>>> +part --source rawcopy --sourceparams
>> "file=${IMAGE_FULLNAME}.${RO_ROOTFS_TYPE}" --align 1024 --fixed-size 1G --
>> uuid "${ABROOTFS_PART_UUID_A}" --part-type 0FC63DAF-8483-4772-8E79-
>> 3D69D8477DE4 --part-name systema
>>> +part --source empty --sourceparams "${ABROOTFS_SOURCEPARAMS_B}" --align
>> 1024 --fixed-size 1G --uuid "${ABROOTFS_PART_UUID_B}" --part-type 0FC63DAF-
>> 8483-4772-8E79-3D69D8477DE4 --part-name systemb
>>> +
>>> +# var and optional home are extra partitions
>>> +${WIC_HOME_PARTITION}
>>> +${WIC_VAR_PARTITION}
>>> +
>>> +bootloader --ptable gpt
>>> diff --git a/wic/rzt2h-evk.wks b/wic/rzt2h-evk.wks
>>> new file mode 100644
>>> index 0000000..4a4af6c
>>> --- /dev/null
>>> +++ b/wic/rzt2h-evk.wks
>>> @@ -0,0 +1,17 @@
>>> +#
>>> +# CIP Core, generic profile
>>> +#
>>> +# Copyright (c) 2026 Renesas Electronics Corporation
>>> +#
>>> +# Authors:
>>> +#  Hung Tran <[email protected]>
>>> +#
>>> +# SPDX-License-Identifier: MIT
>>> +#
>>> +
>>> +part /boot --source bootimg-partition --ondisk mmcblk0 --fstype vfat --
>> label boot --align 1 --size 32M --extra-space 0 --fsuuid 0x4321dcba --use-
>> uuid
>>> +
>>> +# Rootfs partition
>>> +part / --source rootfs --ondisk mmcblk0 --fstype ext4 --label root --align
>> 1024 --size 2G --active --fsuuid 1f55d66a-40d8-11ee-be56-0242ac120002 --use-
>> uuid
>>> +
>>> +bootloader --ptable gpt
>>
>> Thanks for adding this. I think we also want CI coverage for this.
> 
> Right, I forgot about CI again.
> I will add CI when resend.
> 
>>
>> Are there plans to enable secure boot & Co., like we have for the am62px?
> 
> Hum, currently there is no plan for those features.
> I will check whether supporting them is feasible.
> However, currently upstream support for the RZ/T2H in TF-A and U-Boot is not available yet. Therefore, even if support is possible, it will take some time.

Err, that is a bit concerning, given also the problem I faced with older
boards and rather... historic firmware versions. You have upstream-first
for the kernel, why not yet for firmware? Specifically U-Boot with its
missing stable branches will cause some challenges when requiring
downstream for features but latest upstream for security.

Jan

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