arm64: dts: ti: k3-am64: Add M4F remoteproc node

The AM64x SoCs of the TI K3 family have a Cortex M4F core in the MCU
domain. This core can be used by non safety applications as a remote
processor. When used as a remote processor with virtio/rpmessage IPC,
two carveout reserved memory nodes are needed.

Disable by default as this node is not complete until mailbox data
is provided in the board level DT.

Signed-off-by: Hari Nagalla <hnagalla@ti.com>
Signed-off-by: Andrew Davis <afd@ti.com>
Tested-by: Wadim Egorov <w.egorov@phytec.de>
Link: https://lore.kernel.org/r/20241003170118.24932-4-afd@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

diff --git a/arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi
index ad4bed5d3f9eb2d5a113f7e291d523116ea3bbb2..a243c981e853579c63c2e9c59cbf6a638d7ba24c 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi
@@ -161,4 +161,17 @@
                /* Interrupt sources: esm0_cfg, esm0_hi, esm0_low, mrti0 */
                ti,esm-pins = <0>, <1>, <2>, <85>;
        };
+
+       mcu_m4fss: m4fss@5000000 {
+               compatible = "ti,am64-m4fss";
+               reg = <0x00 0x5000000 0x00 0x30000>,
+                     <0x00 0x5040000 0x00 0x10000>;
+               reg-names = "iram", "dram";
+               resets = <&k3_reset 9 1>;
+               firmware-name = "am64-mcu-m4f0_0-fw";
+               ti,sci = <&dmsc>;
+               ti,sci-dev-id = <9>;
+               ti,sci-proc-ids = <0x18 0xff>;
+               status = "disabled";
+       };
 };