From: Thomas Abraham <thomas.ab@xxxxxxxxxxx>
For Exynos 4210/5250/5420 based platforms, add CPU nodes, operating points and
cpu clock data for migrating from Exynos specific cpufreq driver to using
generic cpufreq drivers.
Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
Signed-off-by: Thomas Abraham <thomas.ab@xxxxxxxxxxx>
---
arch/arm/boot/dts/exynos4210-origen.dts | 6 +++++
arch/arm/boot/dts/exynos4210-trats.dts | 6 +++++
arch/arm/boot/dts/exynos4210-universal_c210.dts | 6 +++++
arch/arm/boot/dts/exynos4210.dtsi | 27 +++++++++++++++++++
arch/arm/boot/dts/exynos5250-arndale.dts | 6 +++++
arch/arm/boot/dts/exynos5250-cros-common.dtsi | 6 +++++
arch/arm/boot/dts/exynos5250-smdk5250.dts | 6 +++++
arch/arm/boot/dts/exynos5250.dtsi | 23 ++++++++++++++++
arch/arm/boot/dts/exynos5420-smdk5420.dts | 6 +++++
arch/arm/boot/dts/exynos5420.dtsi | 32 +++++++++++++++++++++++
10 files changed, 124 insertions(+)
diff --git a/arch/arm/boot/dts/exynos4210-origen.dts b/arch/arm/boot/dts/exynos4210-origen.dts
index f767c42..49a97fc 100644
--- a/arch/arm/boot/dts/exynos4210-origen.dts
+++ b/arch/arm/boot/dts/exynos4210-origen.dts
@@ -33,6 +33,12 @@
bootargs ="root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M console=ttySAC2,115200 init=/linuxrc";
};
+ cpus {
+ cpu@0 {
+ cpu0-supply = <&buck1_reg>;
+ };
+ };
+
regulators {
compatible = "simple-bus";
#address-cells = <1>;
diff --git a/arch/arm/boot/dts/exynos4210-trats.dts b/arch/arm/boot/dts/exynos4210-trats.dts
index f516da9..fe32b6a 100644
--- a/arch/arm/boot/dts/exynos4210-trats.dts
+++ b/arch/arm/boot/dts/exynos4210-trats.dts
@@ -30,6 +30,12 @@
bootargs = "console=ttySAC2,115200N8 root=/dev/mmcblk0p5 rootwait earlyprintk panic=5";
};
+ cpus {
+ cpu: cpu@0 {
+ cpu0-supply = <&varm_breg>;
+ };
+ };
+
regulators {
compatible = "simple-bus";
diff --git a/arch/arm/boot/dts/exynos4210-universal_c210.dts b/arch/arm/boot/dts/exynos4210-universal_c210.dts
index d50eb3a..8ab12d6 100644
--- a/arch/arm/boot/dts/exynos4210-universal_c210.dts
+++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts
@@ -28,6 +28,12 @@
bootargs = "console=ttySAC2,115200N8 root=/dev/mmcblk0p5 rw rootwait earlyprintk panic=5 maxcpus=1";
};
+ cpus {
+ cpu: cpu@0 {
+ cpu0-supply = <&vdd_arm_reg>;
+ };
+ };
+
sysram@02020000 {
smp-sysram@0 {
status = "disabled";
diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
index ee3001f..c3a73bf 100644
--- a/arch/arm/boot/dts/exynos4210.dtsi
+++ b/arch/arm/boot/dts/exynos4210.dtsi
@@ -31,6 +31,33 @@
pinctrl2 = &pinctrl_2;
};
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ reg = <0>;
+ clocks = <&clock CLK_ARM_CLK>;
+ clock-names = "cpu";
+
+ operating-points = <
+ 1200000 1250000
+ 1000000 1150000
+ 800000 1075000
+ 500000 975000
+ 400000 975000
+ 200000 950000
+ >;
+ };
+
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ reg = <1>;
+ };
+ };
+
sysram@02020000 {
compatible = "mmio-sram";
reg = <0x02020000 0x20000>;
diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
index d0de1f5..d9b803b 100644
--- a/arch/arm/boot/dts/exynos5250-arndale.dts
+++ b/arch/arm/boot/dts/exynos5250-arndale.dts
@@ -26,6 +26,12 @@
bootargs = "console=ttySAC2,115200";
};
+ cpus {
+ cpu@0 {
+ cpu0-supply = <&buck2_reg>;
+ };
+ };
+
rtc@101E0000 {
status = "okay";
};
diff --git a/arch/arm/boot/dts/exynos5250-cros-common.dtsi b/arch/arm/boot/dts/exynos5250-cros-common.dtsi
index 89ac90f..34bb31c 100644
--- a/arch/arm/boot/dts/exynos5250-cros-common.dtsi
+++ b/arch/arm/boot/dts/exynos5250-cros-common.dtsi
@@ -19,6 +19,12 @@
chosen {
};
+ cpus {
+ cpu@0 {
+ cpu0-supply = <&buck2_reg>;
+ };
+ };
+
pinctrl@11400000 {
/*
* Disabled pullups since external part has its own pullups and
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index a794a70..3632f7a 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -27,6 +27,12 @@
bootargs = "root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M console=ttySAC2,115200 init=/linuxrc";
};
+ cpus {
+ cpu@0 {
+ cpu0-supply = <&buck2_reg>;
+ };
+ };
+
rtc@101E0000 {
status = "okay";
};
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 834fb5a..66b0f98 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -63,6 +63,29 @@
compatible = "arm,cortex-a15";
reg = <0>;
clock-frequency = <1700000000>;
+
+ clocks = <&clock CLK_ARM_CLK>;
+ clock-names = "cpu";
+
+ operating-points = <
+ 1700000 1300000
+ 1600000 1250000
+ 1500000 1225000
+ 1400000 1200000
+ 1300000 1150000
+ 1200000 1125000
+ 1100000 1100000
+ 1000000 1075000
+ 900000 1050000
+ 800000 1025000
+ 700000 1012500
+ 600000 1000000
+ 500000 975000
+ 400000 950000
+ 300000 937500
+ 200000 925000
+ >;
+ clock-latency = <200000>;
};
cpu@1 {
device_type = "cpu";
diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts b/arch/arm/boot/dts/exynos5420-smdk5420.dts
index 6052aa9..084e587 100644
--- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
+++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts
@@ -24,6 +24,12 @@
bootargs = "console=ttySAC2,115200 init=/linuxrc";
};
+ cpus {
+ cpu@4 {
+ cpu0-supply = <&buck6_reg>;
+ };
+ };
+
fixed-rate-clocks {
oscclk {
compatible = "samsung,exynos5420-oscclk";
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index e385322..3baee7f 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -59,8 +59,26 @@
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <0x0>;
+ clocks = <&clock CLK_ARM_CLK>;
+ clock-names = "cpu-cluster.0";
clock-frequency = <1800000000>;
cci-control-port = <&cci_control1>;
+ clock-latency = <200000>;
+
+ operating-points = <
+ 1800000 1250000
+ 1700000 1212500
+ 1600000 1175000
+ 1500000 1137500
+ 1400000 1112500
+ 1300000 1062500
+ 1200000 1037500
+ 1100000 1012500
+ 1000000 987500
+ 900000 962500
+ 800000 937500
+ 700000 912500
+ >;
};
cpu1: cpu@1 {
@@ -91,8 +109,22 @@
device_type = "cpu";
compatible = "arm,cortex-a7";
reg = <0x100>;
+ clocks = <&clock CLK_KFC_CLK>;
+ clock-names = "cpu-cluster.1";
clock-frequency = <1000000000>;
cci-control-port = <&cci_control0>;
+ clock-latency = <200000>;
+
+ operating-points = <
+ 1300000 1275000
+ 1200000 1212500
+ 1100000 1162500
+ 1000000 1112500
+ 900000 1062500
+ 800000 1025000
+ 700000 975000
+ 600000 937500
+ >;
};
cpu5: cpu@101 {
--
1.7.9.5
--
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