[PATCH v3 00/19] Migration to using binman for bootloader

Jan Kiszka jan.kiszka at siemens.com
Wed May 3 18:34:30 CEST 2023

On 03.05.23 14:56, Neha Malcom Francis wrote:
> Hi Jan,
> On 03/05/23 12:57, Neha Malcom Francis wrote:
>> Hi Tom
>> On 27/04/23 04:07, Tom Rini wrote:
>>> On Fri, Apr 21, 2023 at 06:01:44PM +0530, Neha Malcom Francis wrote:
>>>> This series aims to eliminate the use of additional custom repositories
>>>> such as k3-image-gen (K3 Image Generation) repo and core-secdev-k3 (K3
>>>> Security Development Tools) that was plumbed into the U-Boot build flow
>>>> to generate boot images for TI K3 platform devices. And instead, we
>>>> move
>>>> towards using binman that aligns better with the community standard
>>>> build
>>>> flow.
>>>> This series uses binman for all K3 platforms supported on U-Boot
>>>> currently;
>>>> both HS (High Security, both SE and FS) and GP (General Purpose)
>>>> devices.
>>>> Background on using k3-image-gen:
>>>>     * TI K3 devices require a SYSFW (System Firmware) image consisting
>>>>     of a signed system firmware image and board configuration binaries,
>>>>     this is needed to bring up system firmware during U-Boot R5 SPL
>>>>     startup.
>>>>     * Board configuration data contain board-specific information
>>>>     such as resource management, power management and security.
>>>> Background on using core-secdev-k3:
>>>>     * Contains resources to sign x509 certificates for HS devices
>>>> Series intends to use binman to take over the packaging and signing for
>>>> the R5 bootloader images tiboot3.bin (and sysfw.itb, for non-combined
>>>> boot flow) instead of k3-image-gen.
>>>> Series also packages the A72/A53 bootloader images (tispl.bin and
>>>> u-boot.img) using ATF, OPTEE and DM (Device Manager)
>>> So, next up is fixing this in CI. After taking Andrew's patch to fix the
>>> typedef issue, and after my patches to ensure we can get
>>> pyyaml/jsonschema for python, there's problems still:
>> Thanks for checking this! Couple things:
>>> Over at https://source.denx.de/u-boot/u-boot/-/jobs/617966:
>>> binman: Filename 'spl/dts/k3-am68-sk-base-board.dtb' not found in input
>>> path (.,/builds/u-boot/u-boot,board/ti/j721s2,arch/arm/dts)
>>> (cwd='/tmp/.bm-work/j721s2_hs_evm_a72')
>> 1. This is dependent on the patch merging J721S2 HS and GP configs
>> [1]. However it has been reverted on -next, seen in the same thread.
>>> And then:
>>> https://source.denx.de/u-boot/u-boot/-/jobs/617965#L1328
>>> Error: arch/arm/dts/k3-am62a-sk-binman.dtsi:167.1-8 syntax error
>>> I've fixed this, minor but serious change.
>> 2. Regarding iot2050, build fails since it uses
>> arch/arm/mach-k3/config.mk which is now entirely binman based. Will
>> try moving iot2050 to binman as well.
> I'll need some help with this, might need to know the bootloader flow to
> make a clean migration.

Where do I have to look at? Is there a git repo with that experiment


Siemens AG, Technology
Competence Center Embedded Linux

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