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@0x40000000 {
no-map;
reg = <0 0x40000000 0 0x1000000>;
};
m4_reserved_sysmem3: rproc@80000000 {
reg = <0 0x80000000 0 0x800000>;
no-map;
};
};
&remoteproc_cm4 {
memory-region = <&m4_reserved>, <&m4_reserved_sysmem3>;
};
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
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@xxxxxxxxxxxxxx>
*/
+/ {
+ 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
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