summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorNick Chan <towinchenmi@gmail.com>2025-08-21 23:56:38 +0800
committerSven Peter <sven@kernel.org>2025-08-23 09:25:15 +0200
commit32299eb03414cbb475ce3068b64db6d306df5b88 (patch)
treed13c9054c70de77908fe0f782a2eb5885b929392
parentec437f9ba3335ffa14b3d0774d267059636d4778 (diff)
dt-bindings: mailbox: apple,mailbox: Add ASC mailboxes on Apple A11 and T2
Add bindings for ASC mailboxes as found on Apple A11 and T2 SoCs. These mailboxes are used for coprocessors including Secure Enclave Processor (SEP), the NVMe coprocessor and the system management controller. Acked-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Nick Chan <towinchenmi@gmail.com> Link: https://lore.kernel.org/r/20250821-t8015-nvme-v3-1-14a4178adf68@gmail.com Signed-off-by: Sven Peter <sven@kernel.org>
-rw-r--r--Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml b/Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml
index 474c1a0f99f3..bdf58f03b848 100644
--- a/Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml
+++ b/Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml
@@ -34,6 +34,13 @@ properties:
- const: apple,asc-mailbox-v4
- description:
+ An older ASC mailbox interface found on T2 and A11 that is also
+ used for the NVMe coprocessor and the system management
+ controller.
+ items:
+ - const: apple,t8015-asc-mailbox
+
+ - description:
M3 mailboxes are an older variant with a slightly different MMIO
interface still found on the M1. It is used for the Thunderbolt
co-processors.