[v3,6/9] arm64: dts: ti: k3-am62p5-sk: Enable IPC with remote processors

Commit Message

Judith Mendez Feb. 4, 2025, 1:16 a.m. UTC

From: Devarsh Thakkar <[e-mail]>

For each remote proc, reserve memory for IPC and bind the mailbox
assignments. Two memory regions are reserved for each remote processor.
The first region of 1MB of memory is used for Vring shared buffers
and the second region is used as external memory to the remote processor
for the resource table and for tracebuffer allocations.

Signed-off-by: Devarsh Thakkar <[e-mail]>
Signed-off-by: Hari Nagalla <[e-mail]>
Signed-off-by: Judith Mendez <[e-mail]>
---
Changes since v2:
- Fix memory carvout sizes, remove leading zeros
- Reorder memory carveouts according to memory location
- Fix whitespace issues
- Fix commit headers, capitalize IPC
---
 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 50 ++++++++++++++++++++++---
 1 file changed, 44 insertions(+), 6 deletions(-)

Patch

diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
index ad71d2f27f538..9609727d042d3 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -48,6 +48,30 @@  reserved-memory {
 		#size-cells = <2>;
 		ranges;
 
+		mcu_r5fss0_core0_dma_memory_region: mcu-r5fss-dma-memory-region@9b800000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9b800000 0x00 0x100000>;
+			no-map;
+		};
+
+		mcu_r5fss0_core0_memory_region: mcu-r5fss-memory-region@9b900000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9b900000 0x00 0xf00000>;
+			no-map;
+		};
+
+		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9c800000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9c800000 0x00 0x100000>;
+			no-map;
+		};
+
+		wkup_r5fss0_core0_memory_region: r5f-memory@9c900000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9c900000 0x00 0x1e00000>;
+			no-map;
+		};
+
 		secure_tfa_ddr: tfa@9e780000 {
 			reg = <0x00 0x9e780000 0x00 0x80000>;
 			no-map;
@@ -57,12 +81,6 @@  secure_ddr: optee@9e800000 {
 			reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */
 			no-map;
 		};
-
-		wkup_r5fss0_core0_memory_region: r5f-dma-memory@9c900000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9c900000 0x00 0x01e00000>;
-			no-map;
-		};
 	};
 
 	vmain_pd: regulator-0 {
@@ -638,6 +656,26 @@  mbox_mcu_r5_0: mbox-mcu-r5-0 {
 	};
 };
 
+&wkup_r5fss0 {
+	status = "okay";
+};
+
+&wkup_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
+	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
+			<&wkup_r5fss0_core0_memory_region>;
+};
+
+&mcu_r5fss0 {
+	status = "okay";
+};
+
+&mcu_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5_0>;
+	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
+			<&mcu_r5fss0_core0_memory_region>;
+};
+
 &main_uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_uart0_pins_default>;