Commit f18e6d57 authored by Leonard Crestez's avatar Leonard Crestez Committed by Shawn Guo
Browse files

arm64: dts: imx8mq: Add NOC node 



Add initial support for dynamic frequency scaling of the main NOC
on imx8mq.

Make DDRC the parent of the NOC (using passive governor) so that the
main NOC is automatically scaled together with DDRC by default.

Support for proactive scaling via interconnect will come on top.

Signed-off-by: default avatarLeonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: default avatarMartin Kepplinger <martin.kepplinger@puri.sm>
Acked-by: default avatarGeorgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 64285609

arch/arm64/boot/dts/freescale/imx8mq.dtsi

+24 −0
Original line number Diff line number Diff line
@@ -1169,6 +1169,30 @@ 
			};

		};



		noc: interconnect@32700000 {

			compatible = "fsl,imx8mq-noc", "fsl,imx8m-noc";

			reg = <0x32700000 0x100000>;

			clocks = <&clk IMX8MQ_CLK_NOC>;

			fsl,ddrc = <&ddrc>;

			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>;

				};

			};

		};



		bus@32c00000 { /* AIPS4 */

			compatible = "fsl,aips-bus", "simple-bus";

			reg = <0x32c00000 0x400000>;