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Diffstat (limited to 'arch/arm/boot/dts/tegra20-ventana.dts')
-rw-r--r--arch/arm/boot/dts/tegra20-ventana.dts78
1 files changed, 67 insertions, 11 deletions
diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts
index 055334ae3d28..99a356c1ccec 100644
--- a/arch/arm/boot/dts/tegra20-ventana.dts
+++ b/arch/arm/boot/dts/tegra20-ventana.dts
@@ -2,8 +2,10 @@
/dts-v1/;
#include <dt-bindings/input/input.h>
+#include <dt-bindings/thermal/thermal.h>
#include "tegra20.dtsi"
#include "tegra20-cpu-opp.dtsi"
+#include "tegra20-cpu-opp-microvolt.dtsi"
/ {
model = "NVIDIA Tegra20 Ventana evaluation board";
@@ -420,18 +422,28 @@
regulator-always-on;
};
- sm0 {
+ vdd_core: sm0 {
regulator-name = "vdd_sm0,vdd_core";
- regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
+ regulator-min-microvolt = <950000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-coupled-with = <&rtc_vdd &vdd_cpu>;
+ regulator-coupled-max-spread = <170000 550000>;
regulator-always-on;
+ regulator-boot-on;
+
+ nvidia,tegra-core-regulator;
};
- sm1 {
+ vdd_cpu: sm1 {
regulator-name = "vdd_sm1,vdd_cpu";
- regulator-min-microvolt = <1000000>;
- regulator-max-microvolt = <1000000>;
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1125000>;
+ regulator-coupled-with = <&vdd_core &rtc_vdd>;
+ regulator-coupled-max-spread = <550000 550000>;
regulator-always-on;
+ regulator-boot-on;
+
+ nvidia,tegra-cpu-regulator;
};
sm2_reg: sm2 {
@@ -450,10 +462,16 @@
regulator-always-on;
};
- ldo2 {
+ rtc_vdd: ldo2 {
regulator-name = "vdd_ldo2,vdd_rtc";
- regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
+ regulator-min-microvolt = <950000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-coupled-with = <&vdd_core &vdd_cpu>;
+ regulator-coupled-max-spread = <170000 550000>;
+ regulator-always-on;
+ regulator-boot-on;
+
+ nvidia,tegra-rtc-regulator;
};
ldo3 {
@@ -511,9 +529,10 @@
};
};
- temperature-sensor@4c {
+ nct1008: temperature-sensor@4c {
compatible = "onnn,nct1008";
reg = <0x4c>;
+ #thermal-sensor-cells = <1>;
};
};
@@ -595,11 +614,15 @@
cpus {
cpu0: cpu@0 {
+ cpu-supply = <&vdd_cpu>;
operating-points-v2 = <&cpu0_opp_table>;
+ #cooling-cells = <2>;
};
- cpu@1 {
+ cpu1: cpu@1 {
+ cpu-supply = <&vdd_cpu>;
operating-points-v2 = <&cpu0_opp_table>;
+ #cooling-cells = <2>;
};
};
@@ -697,4 +720,37 @@
<&tegra_car TEGRA20_CLK_CDEV1>;
clock-names = "pll_a", "pll_a_out0", "mclk";
};
+
+ thermal-zones {
+ cpu-thermal {
+ polling-delay-passive = <1000>; /* milliseconds */
+ polling-delay = <5000>; /* milliseconds */
+
+ thermal-sensors = <&nct1008 1>;
+
+ trips {
+ trip0: cpu-alert0 {
+ /* start throttling at 50C */
+ temperature = <50000>;
+ hysteresis = <200>;
+ type = "passive";
+ };
+
+ trip1: cpu-crit {
+ /* shut down at 60C */
+ temperature = <60000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&trip0>;
+ cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+ };
};