[RFCv5 PATCH 03/46] arm: vexpress: Add CPU clock-frequencies to TC2 device-tree

Morten Rasmussen
2015-07-07T18:22:40Z

From: Dietmar Eggemann <dietmar.eggemann@arm.com>

To enable the parsing of clock frequency and cpu efficiency values
inside parse_dt_topology [arch/arm/kernel/topology.c] to scale the
relative capacity of the cpus, this property has to be provided within
the cpu nodes of the dts file.

The patch is a copy of commit 8f15973ef8c3 ("ARM: vexpress: Add CPU
clock-frequencies to TC2 device-tree") taken from Linaro Stable Kernel
(LSK) massaged into mainline.

Cc: Jon Medhurst <tixy@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>

Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
---
arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
index 107395c..a596d45 100644
--- a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
@@ -39,6 +39,7 @@
reg = <0>;
cci-control-port = <&cci_control1>;
cpu-idle-states = <&CLUSTER_SLEEP_BIG>;
+ clock-frequency = <1000000000>;
};

cpu1: cpu@1 {
@@ -47,6 +48,7 @@
reg = <1>;
cci-control-port = <&cci_control1>;
cpu-idle-states = <&CLUSTER_SLEEP_BIG>;
+ clock-frequency = <1000000000>;
};

cpu2: cpu@2 {
@@ -55,6 +57,7 @@
reg = <0x100>;
cci-control-port = <&cci_control2>;
cpu-idle-states = <&CLUSTER_SLEEP_LITTLE>;
+ clock-frequency = <800000000>;
};

cpu3: cpu@3 {
@@ -63,6 +66,7 @@
reg = <0x101>;
cci-control-port = <&cci_control2>;
cpu-idle-states = <&CLUSTER_SLEEP_LITTLE>;
+ clock-frequency = <800000000>;
};

cpu4: cpu@4 {
@@ -71,6 +75,7 @@
reg = <0x102>;
cci-control-port = <&cci_control2>;
cpu-idle-states = <&CLUSTER_SLEEP_LITTLE>;
+ clock-frequency = <800000000>;
};

idle-states {
--
1.9.1