Messages in this thread Patch in this message | | | From | Morten Rasmussen <> | Subject | [RFCv5 PATCH 03/46] arm: vexpress: Add CPU clock-frequencies to TC2 device-tree | Date | Tue, 7 Jul 2015 19:23:46 +0100 |
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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
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