@@ -279,3 +279,61 @@
&pcie1_ep {
status = "disabled";
};
+
+&mailbox0_cluster0 {
+ interrupts = <164 0>;
+
+ mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
+ ti,mbox-tx = <1 0 0>;
+ ti,mbox-rx = <0 0 0>;
+ };
+};
+
+&mailbox0_cluster1 {
+ interrupts = <165 0>;
+
+ mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
+ ti,mbox-tx = <1 0 0>;
+ ti,mbox-rx = <0 0 0>;
+ };
+};
+
+&mailbox0_cluster2 {
+ status = "disabled";
+};
+
+&mailbox0_cluster3 {
+ status = "disabled";
+};
+
+&mailbox0_cluster4 {
+ status = "disabled";
+};
+
+&mailbox0_cluster5 {
+ status = "disabled";
+};
+
+&mailbox0_cluster6 {
+ status = "disabled";
+};
+
+&mailbox0_cluster7 {
+ status = "disabled";
+};
+
+&mailbox0_cluster8 {
+ status = "disabled";
+};
+
+&mailbox0_cluster9 {
+ status = "disabled";
+};
+
+&mailbox0_cluster10 {
+ status = "disabled";
+};
+
+&mailbox0_cluster11 {
+ status = "disabled";
+};
Add the sub-mailbox nodes that are used to communicate between MPU and the two R5F remote processors present in the MCU domain to the AM654 EVM base board. These sub-mailbox nodes utilize the System Mailbox clusters 0 and 1. The interrupts associated with the Mailbox Cluster User interrupt used by the sub-mailbox nodes are also added. The GIC_SPI interrupt to be used is dynamically allocated and managed by the System Firmware through the ti-sci-intr irqchip driver. All the remaining mailbox clusters are currently not used on A53 core, and so are disabled. The sub-mailbox nodes added match the hard-coded mailbox configuration used within the TI RTOS IPC software packages. The Cortex R5F processor sub-system is assumed to be running in Split mode, so a sub-mailbox node is used by each of the R5F cores. Only the sub-mailbox node from cluster 0 is used in case of Lockstep mode. Signed-off-by: Suman Anna <s-anna@ti.com> --- v2: - Sub-mailboxes added in board dts file instead of base dtsi file - Unused mailbox clusters 2 through 11 disabled - Patch description and title updated v1: https://patchwork.kernel.org/patch/11053405/ .../arm64/boot/dts/ti/k3-am654-base-board.dts | 58 +++++++++++++++++++ 1 file changed, 58 insertions(+) -- 2.22.0