For Exynos4x12 platforms, add CPU operating points (using
opp-v2 bindings) and CPU regulator supply properties for
migrating from Exynos specific cpufreq driver to using
generic cpufreq driver.
Based on the earlier work by Thomas Abraham.
Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
Cc: Doug Anderson <dianders@xxxxxxxxxxxx>
Cc: Javier Martinez Canillas <javier@xxxxxxxxxxxx>
Cc: Andreas Faerber <afaerber@xxxxxxx>
Cc: Thomas Abraham <thomas.ab@xxxxxxxxxxx>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
---
arch/arm/boot/dts/exynos4212.dtsi | 81 ++++++++++++++++++++++++
arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 4 ++
arch/arm/boot/dts/exynos4412-origen.dts | 5 ++
arch/arm/boot/dts/exynos4412-trats2.dts | 5 ++
arch/arm/boot/dts/exynos4412.dtsi | 83 +++++++++++++++++++++++++
5 files changed, 178 insertions(+)
diff --git a/arch/arm/boot/dts/exynos4212.dtsi b/arch/arm/boot/dts/exynos4212.dtsi
index d9c8efee..9dc40d5 100644
--- a/arch/arm/boot/dts/exynos4212.dtsi
+++ b/arch/arm/boot/dts/exynos4212.dtsi
@@ -30,6 +30,9 @@
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <0xA00>;
+ clocks = <&clock CLK_ARM_CLK>;
+ clock-names = "cpu";
+ operating-points-v2 = <&cpu0_opp_table>;
cooling-min-level = <13>;
cooling-max-level = <7>;
#cooling-cells = <2>; /* min followed by max */
@@ -39,6 +42,84 @@
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <0xA01>;
+ operating-points-v2 = <&cpu0_opp_table>;
+ };
+ };
+
+ cpu0_opp_table: opp_table0 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp00 {
+ opp-hz = <200000000>;
+ opp-microvolt = <900000>;
+ clock-latency-ns = <200000>;
+ };
+ opp01 {
+ opp-hz = <300000000>;
+ opp-microvolt = <900000>;
+ clock-latency-ns = <200000>;
+ };
+ opp02 {
+ opp-hz = <400000000>;
+ opp-microvolt = <925000>;
+ clock-latency-ns = <200000>;
+ };
+ opp03 {
+ opp-hz = <500000000>;
+ opp-microvolt = <950000>;
+ clock-latency-ns = <200000>;
+ };
+ opp04 {
+ opp-hz = <600000000>;
+ opp-microvolt = <975000>;
+ clock-latency-ns = <200000>;
+ };
+ opp05 {
+ opp-hz = <700000000>;
+ opp-microvolt = <987500>;
+ clock-latency-ns = <200000>;
+ };
+ opp06 {
+ opp-hz = <800000000>;
+ opp-microvolt = <1000000>;
+ clock-latency-ns = <200000>;
+ };
+ opp07 {
+ opp-hz = <900000000>;
+ opp-microvolt = <1037500>;
+ clock-latency-ns = <200000>;
+ };
+ opp08 {
+ opp-hz = <1000000000>;
+ opp-microvolt = <1087500>;
+ clock-latency-ns = <200000>;
+ };
+ opp09 {
+ opp-hz = <1100000000>;
+ opp-microvolt = <1137500>;
+ clock-latency-ns = <200000>;
+ };
+ opp10 {
+ opp-hz = <1200000000>;
+ opp-microvolt = <1187500>;
+ clock-latency-ns = <200000>;
+ };
+ opp11 {
+ opp-hz = <1300000000>;
+ opp-microvolt = <1250000>;
+ clock-latency-ns = <200000>;
+ };
+ opp12 {
+ opp-hz = <1400000000>;
+ opp-microvolt = <1287500>;
+ clock-latency-ns = <200000>;
+ };
+ opp13 {
+ opp-hz = <1500000000>;
+ opp-microvolt = <1350000>;
+ clock-latency-ns = <200000>;
+ turbo-mode;
};
};
};
diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index ca7d168..1c7811a 100644
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -507,3 +507,7 @@
&watchdog {
status = "okay";
};
+
+&cpu0 {
+ cpu0-supply = <&buck2_reg>;
+};
diff --git a/arch/arm/boot/dts/exynos4412-origen.dts b/arch/arm/boot/dts/exynos4412-origen.dts
index 84c7631..21150b4 100644
--- a/arch/arm/boot/dts/exynos4412-origen.dts
+++ b/arch/arm/boot/dts/exynos4412-origen.dts
@@ -532,3 +532,8 @@
&watchdog {
status = "okay";
};
+
+
+&cpu0 {
+ cpu0-supply = <&buck2_reg>;
+};
diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index afc199d..1ee43456 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -1313,3 +1313,8 @@
vtmu-supply = <&ldo10_reg>;
status = "okay";
};
+
+
+&cpu0 {
+ cpu0-supply = <&buck2_reg>;
+};
diff --git a/arch/arm/boot/dts/exynos4412.dtsi b/arch/arm/boot/dts/exynos4412.dtsi
index b78ada7..cead3a7 100644
--- a/arch/arm/boot/dts/exynos4412.dtsi
+++ b/arch/arm/boot/dts/exynos4412.dtsi
@@ -30,6 +30,9 @@
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <0xA00>;
+ clocks = <&clock CLK_ARM_CLK>;
+ clock-names = "cpu";
+ operating-points-v2 = <&cpu0_opp_table>;
cooling-min-level = <13>;
cooling-max-level = <7>;
#cooling-cells = <2>; /* min followed by max */
@@ -39,18 +42,98 @@
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <0xA01>;
+ operating-points-v2 = <&cpu0_opp_table>;
};
cpu@A02 {
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <0xA02>;
+ operating-points-v2 = <&cpu0_opp_table>;
};
cpu@A03 {
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <0xA03>;
+ operating-points-v2 = <&cpu0_opp_table>;
+ };
+ };
+
+ cpu0_opp_table: opp_table0 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp00 {
+ opp-hz = <200000000>;
+ opp-microvolt = <900000>;
+ clock-latency-ns = <200000>;
+ };
+ opp01 {
+ opp-hz = <300000000>;
+ opp-microvolt = <900000>;
+ clock-latency-ns = <200000>;
+ };
+ opp02 {
+ opp-hz = <400000000>;
+ opp-microvolt = <925000>;
+ clock-latency-ns = <200000>;
+ };
+ opp03 {
+ opp-hz = <500000000>;
+ opp-microvolt = <950000>;
+ clock-latency-ns = <200000>;
+ };
+ opp04 {
+ opp-hz = <600000000>;
+ opp-microvolt = <975000>;
+ clock-latency-ns = <200000>;
+ };
+ opp05 {
+ opp-hz = <700000000>;
+ opp-microvolt = <987500>;
+ clock-latency-ns = <200000>;
+ };
+ opp06 {
+ opp-hz = <800000000>;
+ opp-microvolt = <1000000>;
+ clock-latency-ns = <200000>;
+ };
+ opp07 {
+ opp-hz = <900000000>;
+ opp-microvolt = <1037500>;
+ clock-latency-ns = <200000>;
+ };
+ opp08 {
+ opp-hz = <1000000000>;
+ opp-microvolt = <1087500>;
+ clock-latency-ns = <200000>;
+ };
+ opp09 {
+ opp-hz = <1100000000>;
+ opp-microvolt = <1137500>;
+ clock-latency-ns = <200000>;
+ };
+ opp10 {
+ opp-hz = <1200000000>;
+ opp-microvolt = <1187500>;
+ clock-latency-ns = <200000>;
+ };
+ opp11 {
+ opp-hz = <1300000000>;
+ opp-microvolt = <1250000>;
+ clock-latency-ns = <200000>;
+ };
+ opp12 {
+ opp-hz = <1400000000>;
+ opp-microvolt = <1287500>;
+ clock-latency-ns = <200000>;
+ };
+ opp13 {
+ opp-hz = <1500000000>;
+ opp-microvolt = <1350000>;
+ clock-latency-ns = <200000>;
+ turbo-mode;
};
};
--
1.9.1
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