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

Neha Malcom Francis n-francis at ti.com
Wed May 3 09:27:13 CEST 2023

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.

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

Thanking You
Neha Malcom Francis

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