linux-kernel - Re: [PATCH v6] dt-bindings: arm: keystone: add boot

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <e516b73b-2dc3-4ae4-966b-278a946491c8@kernel.org>
Date: Tue, 23 Dec 2025 14:40:31 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Anshul Dalal <anshuld@...com>, Nishanth Menon <nm@...com>,
 Tero Kristo <kristo@...nel.org>, Santosh Shilimkar <ssantosh@...nel.org>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Andrew Davis <afd@...com>
Cc: linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, Vignesh Raghavendra <vigneshr@...com>
Subject: Re: [PATCH v6] dt-bindings: arm: keystone: add boot_* mboxes to
 ti,sci

On 23/12/2025 09:44, Anshul Dalal wrote:
> On Mon Dec 22, 2025 at 2:23 PM IST, Krzysztof Kozlowski wrote:
>> On 22/12/2025 09:43, Anshul Dalal wrote:
>>> The bootloader on K3 devices makes use of mailboxes as per the ROM spec
>>> which might be different than one's available to the kernel (firmware
>>> spec).
>>>
>>> Therefore, this patch adds the missing mailbox entries to the DT binding
>>> if the matching compatible is ti,am654-sci to represent the mailboxes
>>> exposed by the hardware during boot for the purpose of loading the
>>> firmware.
>>>
>>> The new ti,am642-sci compatible is also added to represent SoCs which do
>>> not expose a "notify" channel as part of their TI-SCI spec such as AM64x
>>> or the AM62 family. The newly added mboxes are made optional by keeping
>>> minItems as 2 to remain compliant with existing device-trees.
>>>
>>> Signed-off-by: Anshul Dalal <anshuld@...com>
>>> ---
>>> Changes in v6:
>>> - Added ti,am642-sci compatible to represent SoCs without a "notify" channel
>>> - Added new examples instead of editing existing ones
>>
>> Why? Rob asked not to.
> 
> I had followed what Nishanth had said[1], I'll wait for him and Rob to
> align first before posting the next revision.


Existing examples are fine. There is no rule saying you need to keep
updating examples or keep adding new device to examples. If someone told
you about such rule, tell them to stop inventing rules...

Best regards,
Krzysztof