[PATCH 6/7] ARM: dts: i.MX8MQ: Add Cortex-M4 Coprocessor node

[Sascha Hauer]

The i.MX8MQ has a Cortex-M7 Coprocessor. Add a node for controlling it.
To make use of it the board has to provide the reserved memory nodes,
for example:

reserved-memory {
	#address-cells = <2>;
	#size-cells = <2>;
	ranges;

	m4_reserved: m7 at 0x40000000 {
		no-map;
		reg = <0 0x40000000 0 0x1000000>;
	};

	m4_reserved_sysmem3: rproc at 80000000 {
		reg = <0 0x80000000 0 0x800000>;
		no-map;
	};
};

&remoteproc_cm4 {
	memory-region = <&m4_reserved>, <&m4_reserved_sysmem3>;
};

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 arch/arm/dts/imx8mq.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/dts/imx8mq.dtsi b/arch/arm/dts/imx8mq.dtsi
index 5f2df35bc9..ec8347f38f 100644
--- a/arch/arm/dts/imx8mq.dtsi
+++ b/arch/arm/dts/imx8mq.dtsi
@@ -4,6 +4,14 @@
  * Copyright (C) 2017 Pengutronix, Lucas Stach <kernel at pengutronix.de>
  */
 
+/ {
+	remoteproc_cm4: remoteproc-cm4 {
+		compatible = "fsl,imx8mq-cm4";
+		clocks = <&clk IMX8MQ_CLK_M4_CORE>;
+		syscon = <&src>;
+	};
+};
+
 &clk {
 	assigned-clocks = <&clk IMX8MQ_CLK_USDHC1>,
 			  <&clk IMX8MQ_CLK_USDHC2>,
-- 
2.28.0