[PATCH 7/7] ARM: dts: i.MX8MP: Add Cortex-M7 Coprocessor node
Sascha Hauer
s.hauer at pengutronix.de
Mon Oct 5 05:53:46 EDT 2020
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;
m7_reserved_sysmem1: rproc at 40000000 {
reg = <0 0x40000000 0 0x800000>;
no-map;
};
m7_reserved_sysmem2: rproc at 40800000 {
reg = <0 0x40800000 0 0x800000>;
no-map;
};
m7_reserved_sysmem3: rproc at 80000000 {
reg = <0 0x80000000 0 0x800000>;
no-map;
};
};
&remoteproc_cm7 {
memory-region = <&m7_reserved_sysmem1>, <&m7_reserved_sysmem2>, <&m7_reserved_sysmem3>;
};
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
arch/arm/dts/imx8mp-evk.dts | 1 +
arch/arm/dts/imx8mp.dtsi | 9 +++++++++
2 files changed, 10 insertions(+)
create mode 100644 arch/arm/dts/imx8mp.dtsi
diff --git a/arch/arm/dts/imx8mp-evk.dts b/arch/arm/dts/imx8mp-evk.dts
index bb255e2c94..3264ade4b8 100644
--- a/arch/arm/dts/imx8mp-evk.dts
+++ b/arch/arm/dts/imx8mp-evk.dts
@@ -7,6 +7,7 @@
/dts-v1/;
#include <arm64/freescale/imx8mp-evk.dts>
+#include "imx8mp.dtsi"
/ {
chosen {
diff --git a/arch/arm/dts/imx8mp.dtsi b/arch/arm/dts/imx8mp.dtsi
new file mode 100644
index 0000000000..b251ebeada
--- /dev/null
+++ b/arch/arm/dts/imx8mp.dtsi
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+
+/ {
+ remoteproc_cm7: remoteproc-cm7 {
+ compatible = "fsl,imx8mp-cm7";
+ clocks = <&clk IMX8MP_CLK_M7_CORE>;
+ syscon = <&src>;
+ };
+};
--
2.28.0
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