[Buildroot] [PATCH 21/21] boot/ti-k3-image-gen: remove package

[Romain Naour]

Hello Andreas,

Le 16/02/2024 à 21:06, Andreas Dannenberg a écrit :
> On Thu, Feb 15, 2024 at 11:20:50AM +0100, Alexander Sverdlin wrote:
>> Hi Romain,
>>
>> On Tue, 2024-02-13 at 18:28 +0100, Romain Naour wrote:
>>> -choice
>>> -	prompt "Security type"
>>> -	help
>>> -	  The target SoC security type option for image gen.  Valid
>>> -	  options are "gp" for General Purpose devices, "hs-fs" for
>>> -	  High Security - Field Securable devices, or "hs" for High
>>> -	  Security - Security Enforcing devices.  Note for all High
>>> -	  Security device variants the TI_SECURE_DEV_PKG environmental
>>> -	  variable must be defined at build time pointing to a valid
>>> -	  core-secdev-k3 folder location, otherwise the build will
>>> -	  fail, see
>>> -	  https://git.ti.com/cgit/security-development-tools/core-secdev-k3
>>> -
>>> -config BR2_TARGET_TI_K3_IMAGE_GEN_SECTYPE_GP
>>> -	bool "gp"
>>> -
>>> -config BR2_TARGET_TI_K3_IMAGE_GEN_SECTYPE_HS_FS
>>> -	bool "hs-fs"
>>> -
>>> -config BR2_TARGET_TI_K3_IMAGE_GEN_SECTYPE_HS
>>> -	bool "hs"
>>> -
>>> -endchoice
>>
>> another observation I made just now: previously BR2_TARGET_TI_K3_IMAGE_GEN_SECTYPE_GP=y
>> was the default, which didn't boot on my HS-FS SoC.
>>
>> You patchset started out-of-the-box, which, I conclude, means, HS-FS is now the
>> default for AM62x. I'm not sure if this is a problem, though.
> 
> HS-FS should be the default for all TI AM6x devices. This is our
> "production silicon" and what's used for (almost) all projects,
> especially new projects. This being said having support for GP device
> variants still is desirable for existing boards/projects, such as the
> current BeaglePlay boards (amongst earlier version of TI starter kit
> EVMs for AM6x).

Thank you, I was not aware of this.

I found your post in the TI forum about the recent switch from GP to HS-FS
device in Yocto [1].

Currently existing am64/am62 defconfigs are still targeting GP devices but we
should add additional commits to do the switch to HS-FS.

What about other SoC of the K3 architecture?
Is the DRA829/J721e device will also switch to HS-FS by default?

>From the u-boot k3 documentation, it's not clear witch device type is used by
default across all k3 SoC. By default I was expecting the GP type for all the k3
family (I was wrong).

[1]
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1210443/faq-am625-generating-sitara-am62x-am62ax-am64x-gp-device-bootable-mmc-sd-card-images-using-sdk-v8-6-and-yocto

[2]
https://source.denx.de/u-boot/u-boot/-/blob/master/doc/board/ti/k3.rst?ref_type=heads&plain=1#L108

Best regards,
Romain

> 
> --
> Andreas Dannenberg
> Texas Instruments Inc
> 
> 
>>
>> -- 
>> Alexander Sverdlin.
>>
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