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From: Leonard Crestez <leonard.crestez@nxp.com>
To: Georgi Djakov <georgi.djakov@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Chanwoo Choi <cw00.choi@samsung.com>
Cc: "Artur Świgoń" <a.swigon@partner.samsung.com>,
	"Alexandre Bailon" <abailon@baylibre.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	"Jacky Bai" <ping.bai@nxp.com>,
	"Anson Huang" <Anson.Huang@nxp.com>,
	"Abel Vesa" <abel.vesa@nxp.com>,
	"Krzysztof Kozlowski" <krzk@kernel.org>,
	"MyungJoo Ham" <myungjoo.ham@samsung.com>,
	"Kyungmin Park" <kyungmin.park@samsung.com>,
	"Saravana Kannan" <saravanak@google.com>,
	"Mark Rutland" <mark.rutland@arm.com>,
	"Viresh Kumar" <viresh.kumar@linaro.org>,
	"Shawn Guo" <shawnguo@kernel.org>,
	"Dong Aisheng" <aisheng.dong@nxp.com>,
	"Fabio Estevam" <fabio.estevam@nxp.com>,
	"Stephen Boyd" <sboyd@kernel.org>,
	"Michael Turquette" <mturquette@baylibre.com>,
	"Matthias Kaehlcke" <mka@chromium.org>,
	"Angus Ainslie" <angus@akkea.ca>,
	"Martin Kepplinger" <martink@posteo.de>,
	linux-pm@vger.kernel.org, kernel@pengutronix.de,
	linux-imx@nxp.com, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH RFC v5 09/10] arm64: dts: imx8m: Add NOC nodes
Date: Fri,  1 Nov 2019 00:52:08 +0200	[thread overview]
Message-ID: <68fd036712ea9b60109cf34ea04ff0abac6ed6c3.1572562150.git.leonard.crestez@nxp.com> (raw)
In-Reply-To: <cover.1572562150.git.leonard.crestez@nxp.com>
In-Reply-To: <cover.1572562150.git.leonard.crestez@nxp.com>

Add initial support for dynamic frequency scaling of main NOC.

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 later.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8mm.dtsi | 22 ++++++++++++++++++++++
 arch/arm64/boot/dts/freescale/imx8mn.dtsi | 22 ++++++++++++++++++++++
 arch/arm64/boot/dts/freescale/imx8mq.dtsi | 22 ++++++++++++++++++++++
 3 files changed, 66 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index 5404870d80d5..dc0ab49bbbd2 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -138,10 +138,24 @@
 			clock-latency-ns = <150000>;
 			opp-suspend;
 		};
 	};
 
+	noc_opp_table: noc-opp-table {
+		compatible = "operating-points-v2";
+
+		opp-150M {
+			opp-hz = /bits/ 64 <150000000>;
+		};
+		opp-375M {
+			opp-hz = /bits/ 64 <375000000>;
+		};
+		opp-750M {
+			opp-hz = /bits/ 64 <750000000>;
+		};
+	};
+
 	memory@40000000 {
 		device_type = "memory";
 		reg = <0x0 0x40000000 0 0x80000000>;
 	};
 
@@ -772,10 +786,18 @@
 				status = "disabled";
 			};
 
 		};
 
+		noc: interconnect@32700000 {
+			compatible = "fsl,imx8mm-noc", "fsl,imx8m-noc";
+			reg = <0x32700000 0x100000>;
+			clocks = <&clk IMX8MM_CLK_NOC>;
+			devfreq = <&ddrc>;
+			operating-points-v2 = <&noc_opp_table>;
+		};
+
 		aips4: bus@32c00000 {
 			compatible = "fsl,aips-bus", "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges = <0x32c00000 0x32c00000 0x400000>;
diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index 344dd777635f..6b4a9ba2a8a5 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -137,10 +137,24 @@
 			clock-latency-ns = <150000>;
 			opp-suspend;
 		};
 	};
 
+	noc_opp_table: noc-opp-table {
+		compatible = "operating-points-v2";
+
+		opp-100M {
+			opp-hz = /bits/ 64 <100000000>;
+		};
+		opp-600M {
+			opp-hz = /bits/ 64 <600000000>;
+		};
+		opp-800M {
+			opp-hz = /bits/ 64 <800000000>;
+		};
+	};
+
 	memory@40000000 {
 		device_type = "memory";
 		reg = <0x0 0x40000000 0 0x80000000>;
 	};
 
@@ -668,10 +682,18 @@
 				status = "disabled";
 			};
 
 		};
 
+		noc: interconnect@32700000 {
+			compatible = "fsl,imx8mn-noc", "fsl,imx8m-noc";
+			reg = <0x32700000 0x100000>;
+			clocks = <&clk IMX8MN_CLK_NOC>;
+			devfreq = <&ddrc>;
+			operating-points-v2 = <&noc_opp_table>;
+		};
+
 		aips4: bus@32c00000 {
 			compatible = "fsl,aips-bus", "simple-bus";
 			reg = <0x32c00000 0x400000>;
 			#address-cells = <1>;
 			#size-cells = <1>;
diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
index 6ef1af41ef68..c42c67eb1d50 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
@@ -183,10 +183,24 @@
 			clock-latency-ns = <150000>;
 			opp-suspend;
 		};
 	};
 
+	noc_opp_table: noc-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>;
+		};
+	};
+
 	pmu {
 		compatible = "arm,cortex-a53-pmu";
 		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-parent = <&gic>;
 		interrupt-affinity = <&A53_0>, <&A53_1>, <&A53_2>, <&A53_3>;
@@ -931,10 +945,18 @@
 				fsl,num-rx-queues = <3>;
 				status = "disabled";
 			};
 		};
 
+		noc: interconnect@32700000 {
+			compatible = "fsl,imx8mq-noc", "fsl,imx8m-noc";
+			reg = <0x32700000 0x100000>;
+			clocks = <&clk IMX8MQ_CLK_NOC>;
+			devfreq = <&ddrc>;
+			operating-points-v2 = <&noc_opp_table>;
+		};
+
 		bus@32c00000 { /* AIPS4 */
 			compatible = "fsl,imx8mq-aips-bus", "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges = <0x32c00000 0x32c00000 0x400000>;
-- 
2.17.1


  parent reply	other threads:[~2019-10-31 22:52 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-31 22:51 [PATCH RFC v5 00/10] interconnect: Add imx support via devfreq Leonard Crestez
2019-10-31 22:52 ` [PATCH RFC v5 01/10] dt-bindings: devfreq: Add bindings for generic imx buses Leonard Crestez
2019-11-04 22:49   ` Rob Herring
2019-11-11 22:28     ` Leonard Crestez
2019-10-31 22:52 ` [PATCH RFC v5 02/10] PM / devfreq: Add generic imx bus driver Leonard Crestez
2019-10-31 22:52 ` [PATCH RFC v5 03/10] PM / devfreq: imx: Register interconnect device Leonard Crestez
2019-10-31 22:52 ` [PATCH RFC v5 04/10] PM / devfreq: Add devfreq_get_devfreq_by_node Leonard Crestez
2019-10-31 22:52 ` [PATCH RFC v5 05/10] interconnect: Add imx core driver Leonard Crestez
2019-11-12 15:07   ` Georgi Djakov
2019-11-12 17:25     ` Leonard Crestez
2019-10-31 22:52 ` [PATCH RFC v5 06/10] interconnect: imx: Add platform driver for imx8mm Leonard Crestez
2019-10-31 22:52 ` [PATCH RFC v5 07/10] interconnect: imx: Add platform driver for imx8mq Leonard Crestez
2019-10-31 22:52 ` [PATCH RFC v5 08/10] interconnect: imx: Add platform driver for imx8mn Leonard Crestez
2019-10-31 22:52 ` Leonard Crestez [this message]
2019-10-31 22:52 ` [PATCH RFC v5 10/10] arm64: dts: imx8m: Add interconnect provider properties Leonard Crestez

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