1 files changed, 59 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/patches-4.4/047-0020-ARM-dts-BCM5301X-Add-CPU-thermal-sensor-and-zone.patch b/target/linux/bcm53xx/patches-4.4/047-0020-ARM-dts-BCM5301X-Add-CPU-thermal-sensor-and-zone.patch
new file mode 100644
index 0000000000..461696e960
--- /dev/null
+++ b/target/linux/bcm53xx/patches-4.4/047-0020-ARM-dts-BCM5301X-Add-CPU-thermal-sensor-and-zone.patch
@@ -0,0 +1,59 @@
+From e55d2c7272ff647efac4aecd895b20ee66e43519 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Fri, 14 Apr 2017 23:42:28 +0200
+Subject: [PATCH] ARM: dts: BCM5301X: Add CPU thermal sensor and zone
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This uses CPU thermal sensor available on every Northstar chipset to
+monitor temperature. We don't have any cooling or throttling so only a
+critical trip was added.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Acked-by: Jon Mason <jon.mason@broadcom.com>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm/boot/dts/bcm5301x.dtsi | 26 ++++++++++++++++++++++++++
+ 1 file changed, 26 insertions(+)
+
+--- a/arch/arm/boot/dts/bcm5301x.dtsi
++++ b/arch/arm/boot/dts/bcm5301x.dtsi
+@@ -363,6 +363,12 @@
+ 				     "sata2";
+ 	};
+ 
++	thermal: thermal@1800c2c0 {
++		compatible = "brcm,ns-thermal";
++		reg = <0x1800c2c0 0x10>;
++		#thermal-sensor-cells = <0>;
++	};
++
+ 	srab: srab@18007000 {
+ 		compatible = "brcm,bcm5301x-srab";
+ 		reg = <0x18007000 0x1000>;
+@@ -390,4 +396,24 @@
+ 
+ 		brcm,nand-has-wp;
+ 	};
++
++	thermal-zones {
++		cpu_thermal: cpu-thermal {
++			polling-delay-passive = <0>;
++			polling-delay = <1000>;
++			coefficients = <(-556) 418000>;
++			thermal-sensors = <&thermal>;
++
++			trips {
++				cpu-crit {
++					temperature	= <125000>;
++					hysteresis	= <0>;
++					type		= "critical";
++				};
++			};
++
++			cooling-maps {
++			};
++		};
++	};
+ };