From: Apurva Nandan <a-nandan@xxxxxx>
The K3 J722S SoCs have one single-core Arm Cortex-R5F processor in each
of the WAKEUP, MCU and MAIN voltage domain, and two C71x DSP subsystems
in MAIN voltage domain.
The Inter-Processor communication between the main A72 cores and these
R5F and DSP remote cores is achieved through shared memory and
Mailboxes. Thus, add the memory carveouts required for communication.
Signed-off-by: Apurva Nandan <a-nandan@xxxxxx>
Signed-off-by: Beleswar Padhi <b-padhi@xxxxxx>
---
arch/arm64/boot/dts/ti/k3-j722s-evm.dts | 103 ++++++++++++++++++++++++
1 file changed, 103 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
index a51925deb43b8..b0b5b6c97b92d 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
@@ -49,12 +49,71 @@ secure_ddr: optee@9e800000 {
no-map;
};
+ wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@a0000000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0xa0000000 0x00 0x100000>;
+ no-map;
+ };
+
wkup_r5fss0_core0_memory_region: r5f-memory@a0100000 {
compatible = "shared-dma-pool";
reg = <0x00 0xa0100000 0x00 0xf00000>;
no-map;
};
+ mcu_r5fss0_core0_dma_memory_region: mcu-r5fss-dma-memory-region@a1000000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0xa1000000 0x00 0x100000>;
+ no-map;
+ };
+
+ mcu_r5fss0_core0_memory_region: mcu-r5fss-memory-region@a1100000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0xa1100000 0x00 0xf00000>;
+ no-map;
+ };
+
+ main_r5fss0_core0_dma_memory_region: main-r5fss-dma-memory-region@a2000000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0xa2000000 0x00 0x100000>;
+ no-map;
+ };
+
+ main_r5fss0_core0_memory_region: main-r5fss-memory-region@a2100000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0xa2100000 0x00 0xf00000>;
+ no-map;
+ };
+
+ c7x_0_dma_memory_region: c7x-dma-memory@a3000000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0xa3000000 0x00 0x100000>;
+ no-map;
+ };
+
+ c7x_0_memory_region: c7x-memory@a3100000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0xa3100000 0x00 0xf00000>;
+ no-map;
+ };
+
+ c7x_1_dma_memory_region: c7x-dma-memory@a4000000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0xa4000000 0x00 0x100000>;
+ no-map;
+ };
+
+ c7x_1_memory_region: c7x-memory@a4100000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0xa4100000 0x00 0xf00000>;
+ no-map;
+ };
+
+ rtos_ipc_memory_region: ipc-memories@a5000000 {
+ reg = <0x00 0xa5000000 0x00 0x1c00000>;
+ alignment = <0x1000>;
+ no-map;
+ };
};
vmain_pd: regulator-0 {
@@ -421,3 +480,47 @@ mbox_c7x_1: mbox-c7x-1 {
ti,mbox-tx = <3 0 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_r5fss0 {
+ status = "okay";
+};
+
+&main_r5fss0_core0 {
+ mboxes = <&mailbox0_cluster3 &mbox_main_r5_0>;
+ memory-region = <&main_r5fss0_core0_dma_memory_region>,
+ <&main_r5fss0_core0_memory_region>;
+};
+
+&c7x_0 {
+ status = "okay";
+ mboxes = <&mailbox0_cluster2 &mbox_c7x_0>;
+ memory-region = <&c7x_0_dma_memory_region>,
+ <&c7x_0_memory_region>;
+};
+
+&c7x_1 {
+ status = "okay";
+ mboxes = <&mailbox0_cluster3 &mbox_c7x_1>;
+ memory-region = <&c7x_1_dma_memory_region>,
+ <&c7x_1_memory_region>;
+};
--
2.34.1
