[PATCH v3 11/33] arm64: dts: ti: k3-am62a: Enable Mailbox nodes at the board level

Beleswar Padhi
2025-09-05T06:04:42Z

Mailbox nodes defined in the top-level AM62A SoC dtsi files are
incomplete and may not be functional unless they are extended with a
chosen interrupt and connection to a remote processor.

As the remote processors depend on memory nodes which are only known at
the board integration level, these nodes should only be enabled when
provided with the above information.

Disable the Mailbox nodes in the dtsi files and only enable the ones
that are actually used on a given board.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
Acked-by: Andrew Davis <afd@ti.com>
Tested-by: Judith Mendez <jm@ti.com>
---
v3: Changelog:
1. Carried A/B, T/B tag.

Link to v2:
https://lore.kernel.org/all/20250823160901.2177841-12-b-padhi@ti.com/

v2: Changelog:
1. Re-ordered patch from [PATCH 23/33] to [PATCH v2 11/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-24-b-padhi@ti.com/

arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
index 9cad79d7bbc1..d5f018768981 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
@@ -804,6 +804,7 @@ mailbox0_cluster0: mailbox@29000000 {
#mbox-cells = <1>;
ti,mbox-num-users = <4>;
ti,mbox-num-fifos = <16>;
+ status = "disabled";
};

mailbox0_cluster1: mailbox@29010000 {
@@ -813,6 +814,7 @@ mailbox0_cluster1: mailbox@29010000 {
#mbox-cells = <1>;
ti,mbox-num-users = <4>;
ti,mbox-num-fifos = <16>;
+ status = "disabled";
};

mailbox0_cluster2: mailbox@29020000 {
@@ -822,6 +824,7 @@ mailbox0_cluster2: mailbox@29020000 {
#mbox-cells = <1>;
ti,mbox-num-users = <4>;
ti,mbox-num-fifos = <16>;
+ status = "disabled";
};

mailbox0_cluster3: mailbox@29030000 {
@@ -831,6 +834,7 @@ mailbox0_cluster3: mailbox@29030000 {
#mbox-cells = <1>;
ti,mbox-num-users = <4>;
ti,mbox-num-fifos = <16>;
+ status = "disabled";
};

main_mcan0: can@20701000 {
--
2.34.1