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

Neha Malcom Francis n-francis at ti.com
Wed May 3 14:56:22 CEST 2023

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.

> [1] https://lore.kernel.org/all/20230224050749.13145-1-m-chawdhry@ti.com/

Thanking You
Neha Malcom Francis

More information about the U-Boot mailing list