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From: Leonard Crestez <leonard.crestez@nxp.com>
To: Viresh Kumar <viresh.kumar@linaro.org>, Shawn Guo <shawnguo@kernel.org>
Cc: Jacky Bai <ping.bai@nxp.com>, Anson Huang <Anson.Huang@nxp.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Dong Aisheng <aisheng.dong@nxp.com>,
	Fabio Estevam <fabio.estevam@nxp.com>,
	kernel@pengutronix.de, linux-imx@nxp.com,
	linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 4/5] ARM: dts: imx7d: Update cpufreq OPP table
Date: Wed,  5 Jun 2019 13:37:08 +0300	[thread overview]
Message-ID: <be47ecfba98b4adacd39e4a6a85897cd4ee0ec88.1559730963.git.leonard.crestez@nxp.com> (raw)
In-Reply-To: <cover.1559730963.git.leonard.crestez@nxp.com>
In-Reply-To: <cover.1559730963.git.leonard.crestez@nxp.com>

According to latest docs imx7d chips can go from 800 to 1200 mhz.
Maximum frequency is determined from two speed grading bits present in
OCOTP fuses at same location as other imx chips.

Also update to "typical" voltages from latest datasheet, 25mv higher
than current dts.

All imx7s parts are still fixed at 800mhz

Based on:
* IMX7DCEC Rev. 6, 03/2019
* IMX7SCEC Rev. 6, 03/2019
* IMX7DRM Rev. 1, 01/2018 Page 1102

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
---
 arch/arm/boot/dts/imx7d.dtsi | 16 +++++++++++++---
 arch/arm/boot/dts/imx7s.dtsi |  4 ++++
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi
index f33b560821b8..42528d2812a2 100644
--- a/arch/arm/boot/dts/imx7d.dtsi
+++ b/arch/arm/boot/dts/imx7d.dtsi
@@ -10,10 +10,12 @@
 	cpus {
 		cpu0: cpu@0 {
 			clock-frequency = <996000000>;
 			operating-points-v2 = <&cpu0_opp_table>;
 			#cooling-cells = <2>;
+			nvmem-cells = <&cpu_speed_grade>;
+			nvmem-cell-names = "speed_grade";
 		};
 
 		cpu1: cpu@1 {
 			compatible = "arm,cortex-a7";
 			device_type = "cpu";
@@ -37,19 +39,27 @@
 		compatible = "operating-points-v2";
 		opp-shared;
 
 		opp-792000000 {
 			opp-hz = /bits/ 64 <792000000>;
-			opp-microvolt = <975000>;
+			opp-microvolt = <1000000>;
 			clock-latency-ns = <150000>;
+			opp-supported-hw = <0xf>, <0xf>;
 		};
 
 		opp-996000000 {
 			opp-hz = /bits/ 64 <996000000>;
-			opp-microvolt = <1075000>;
+			opp-microvolt = <1100000>;
 			clock-latency-ns = <150000>;
-			opp-suspend;
+			opp-supported-hw = <0xc>, <0xf>;
+		};
+
+		opp-1200000000 {
+			opp-hz = /bits/ 64 <1200000000>;
+			opp-microvolt = <1225000>;
+			clock-latency-ns = <150000>;
+			opp-supported-hw = <0x8>, <0xf>;
 		};
 	};
 
 	usbphynop2: usbphynop2 {
 		compatible = "usb-nop-xceiv";
diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
index d8b4eb67146d..5b8292670b4b 100644
--- a/arch/arm/boot/dts/imx7s.dtsi
+++ b/arch/arm/boot/dts/imx7s.dtsi
@@ -549,10 +549,14 @@
 				};
 
 				tempmon_temp_grade: temp-grade@10 {
 					reg = <0x10 0x4>;
 				};
+
+				cpu_speed_grade: speed-grade@10 {
+					reg = <0x10 0x4>;
+				};
 			};
 
 			anatop: anatop@30360000 {
 				compatible = "fsl,imx7d-anatop", "fsl,imx6q-anatop",
 					"syscon", "simple-bus";
-- 
2.7.4


  parent reply	other threads:[~2019-06-05 10:37 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-05 10:37 [PATCH 0/5] Add imx7d speed grading and higher OPPs Leonard Crestez
2019-06-05 10:37 ` [PATCH v2 1/5] cpufreq: imx-cpufreq-dt: Remove global platform match list Leonard Crestez
2019-06-05 10:37 ` [PATCH v2 2/5] cpufreq: Switch imx7d to imx-cpufreq-dt for speed grading Leonard Crestez
2019-06-05 10:37 ` [PATCH v2 3/5] ARM: imx: Switch imx7d to imx-cpufreq-dt for speed-grading Leonard Crestez
2019-06-05 10:37 ` Leonard Crestez [this message]
2019-06-05 10:37 ` [PATCH v2 5/5] ARM: imx_v6_v7_defconfig: Enable CONFIG_ARM_IMX_CPUFREQ_DT Leonard Crestez
2019-06-06  3:08 ` [PATCH 0/5] Add imx7d speed grading and higher OPPs Viresh Kumar
2019-06-12 10:33 ` Shawn Guo

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