@@ -4,7 +4,7 @@
$id: "http://devicetree.org/schemas/remoteproc/fsl,imx-rproc.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-title: NXP iMX6SX/iMX7D Co-Processor Bindings
+title: NXP i.MX Co-Processor Bindings
description:
This binding provides support for ARM Cortex M4 Co-processor found on some NXP iMX SoCs.
@@ -15,6 +15,8 @@ maintainers:
properties:
compatible:
enum:
+ - fsl,imx8mq-cm4
+ - fsl,imx8mm-cm4
- fsl,imx7d-cm4
- fsl,imx6sx-cm4
@@ -26,6 +28,20 @@ properties:
description:
Phandle to syscon block which provide access to System Reset Controller
+ mbox-names:
+ items:
+ - const: tx
+ - const: rx
+ - const: rxdb
+
+ mboxes:
+ description:
+ This property is required only if the rpmsg/virtio functionality is used.
+ List of <&phandle type channel> - 1 channel for TX, 1 channel for RX, 1 channel for RXDB.
+ (see mailbox/fsl,mu.yaml)
+ minItems: 1
+ maxItems: 3
+
memory-region:
description:
If present, a phandle for a reserved memory area that used for vdev buffer,
@@ -57,4 +73,37 @@ examples:
clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>;
};
+ - |
+ #include <dt-bindings/clock/imx8mm-clock.h>
+ rsc_table: rsc_table@550ff000 {
+ no-map;
+ reg = <0x550ff000 0x1000>;
+ };
+
+ vdev0vring0: vdev0vring0@55000000 {
+ no-map;
+ reg = <0x55000000 0x8000>;
+ };
+
+ vdev0vring1: vdev0vring1@55008000 {
+ reg = <0x55008000 0x8000>;
+ no-map;
+ };
+
+ vdev0buffer: vdev0buffer@55400000 {
+ compatible = "shared-dma-pool";
+ reg = <0x55400000 0x100000>;
+ no-map;
+ };
+
+ imx8mm-cm4 {
+ compatible = "fsl,imx8mm-cm4";
+ clocks = <&clk IMX8MM_CLK_M4_DIV>;
+ mbox-names = "tx", "rx", "rxdb";
+ mboxes = <&mu 0 1
+ &mu 1 1
+ &mu 3 1>;
+ memory-region = <&vdev0buffer>, <&vdev0vring0>, <&vdev0vring1>, <&rsc_table>;
+ syscon = <&src>;
+ };
...