Add support for dynamic frequency scaling of the main NOC configuration
on imx8mm.
References:
- i.MX 8M Mini Applications Processor RM, Rev. 3, 11/2020
- f18e6d573b80 arm64: dts: imx8mq: Add NOC node
- 912b9dacf3f0 arm64: dts: imx8mq: increase NOC clock to 800 MHz
---
arch/arm64/boot/dts/freescale/imx8mm.dtsi | 25 +++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index c2f3f118f82e..c5f64abcecff 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -719,6 +719,31 @@ pgc_mipi: power-domain@11 {
};
};
+ noc: interconnect@32700000 {
+ compatible = "fsl,imx8mm-noc", "fsl,imx8m-noc";
+ reg = <0x32700000 0x100000>;
+ clocks = <&clk IMX8MM_CLK_NOC>;
+ fsl,ddrc = <&ddrc>;
+ #interconnect-cells = <1>;
+ operating-points-v2 = <&noc_opp_table>;
+
+ noc_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-133M {
+ opp-hz = /bits/ 64 <133333333>;
+ };
+
+ opp-400M {
+ opp-hz = /bits/ 64 <400000000>;
+ };
+
+ opp-800M {
+ opp-hz = /bits/ 64 <800000000>;
+ };
+ };
+ };
+
aips2: bus@30400000 {
compatible = "fsl,aips-bus", "simple-bus";
reg = <0x30400000 0x400000>;
--
2.25.1
