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From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Sekhar Nori <nsekhar@ti.com>, Kevin Hilman <khilman@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	David Lechner <david@lechnology.com>,
	Adam Ford <aford173@gmail.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>
Subject: [RESEND PATCH v5 1/5] ARM: dts: da850: add cpu node and operating points to DT
Date: Mon, 27 May 2019 10:22:55 +0200	[thread overview]
Message-ID: <20190527082259.29237-2-brgl@bgdev.pl> (raw)
In-Reply-To: <20190527082259.29237-1-brgl@bgdev.pl>

From: David Lechner <david@lechnology.com>

This adds a cpu node and operating points to the common da850.dtsi file.

All operating points above 300MHz are disabled by default.

Regulators need to be hooked up on a per-board basis.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
 arch/arm/boot/dts/da850.dtsi | 50 ++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index 559659b399d0..0c9a8e78f748 100644
--- a/arch/arm/boot/dts/da850.dtsi
+++ b/arch/arm/boot/dts/da850.dtsi
@@ -20,6 +20,56 @@
 		reg = <0xc0000000 0x0>;
 	};
 
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu: cpu@0 {
+			compatible = "arm,arm926ej-s";
+			device_type = "cpu";
+			reg = <0>;
+			clocks = <&psc0 14>;
+			operating-points-v2 = <&opp_table>;
+		};
+	};
+
+	opp_table: opp-table {
+		compatible = "operating-points-v2";
+
+		opp_100: opp100-100000000 {
+			opp-hz = /bits/ 64 <100000000>;
+			opp-microvolt = <1000000 950000 1050000>;
+		};
+
+		opp_200: opp110-200000000 {
+			opp-hz = /bits/ 64 <200000000>;
+			opp-microvolt = <1100000 1050000 1160000>;
+		};
+
+		opp_300: opp120-300000000 {
+			opp-hz = /bits/ 64 <300000000>;
+			opp-microvolt = <1200000 1140000 1320000>;
+		};
+
+		/*
+		 * Original silicon was 300MHz max, so higher frequencies
+		 * need to be enabled on a per-board basis if the chip is
+		 * capable.
+		 */
+
+		opp_375: opp120-375000000 {
+			status = "disabled";
+			opp-hz = /bits/ 64 <375000000>;
+			opp-microvolt = <1200000 1140000 1320000>;
+		};
+
+		opp_456: opp130-456000000 {
+			status = "disabled";
+			opp-hz = /bits/ 64 <456000000>;
+			opp-microvolt = <1300000 1250000 1350000>;
+		};
+	};
+
 	arm {
 		#address-cells = <1>;
 		#size-cells = <1>;
-- 
2.21.0


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  reply	other threads:[~2019-05-27  8:23 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-27  8:22 [RESEND PATCH v5 0/5] ARM: da850: enable cpufreq in DT mode Bartosz Golaszewski
2019-05-27  8:22 ` Bartosz Golaszewski [this message]
2019-05-27  8:22 ` [RESEND PATCH v5 2/5] ARM: dts: da850-lego-ev3: enable cpufreq Bartosz Golaszewski
2019-05-27  8:22 ` [RESEND PATCH v5 3/5] ARM: dts: da850-lcdk: " Bartosz Golaszewski
2019-05-27  8:22 ` [RESEND PATCH v5 4/5] ARM: dts: da850-evm: " Bartosz Golaszewski
2019-05-27  8:22 ` [RESEND PATCH v5 5/5] ARM: davinci_all_defconfig: Enable CPUFREQ_DT Bartosz Golaszewski
2019-06-20 11:17 ` [RESEND PATCH v5 0/5] ARM: da850: enable cpufreq in DT mode Sekhar Nori

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