From 8199e49ff1f654bbe8bed90fd6710bc097a89d02 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 30 May 2018 10:16:58 +0530 Subject: [PATCH] ARM: dts: r8a77(43|9[013]): Add missing OPP properties for CPUs The OPP properties, like "operating-points", should either be present for all the CPUs of a cluster or none. If these are present only for a subset of CPUs of a cluster then things will start falling apart as soon as the CPUs are brought online in a different order. For example, this will happen because the operating system looks for such properties in the CPU node it is trying to bring up, so that it can create an OPP table. Add such missing properties. Fix other missing properties (like, clock latency, voltage tolerance, etc) as well to make it all work. Signed-off-by: Viresh Kumar Reviewed-by: Simon Horman Signed-off-by: Simon Horman --- arch/arm/boot/dts/r8a7743.dtsi | 9 +++++++++ arch/arm/boot/dts/r8a7790.dtsi | 34 ++++++++++++++++++++++++++++++++-- arch/arm/boot/dts/r8a7791.dtsi | 14 ++++++++++++-- arch/arm/boot/dts/r8a7793.dtsi | 15 +++++++++++++-- 4 files changed, 66 insertions(+), 6 deletions(-) diff --git a/arch/arm/boot/dts/r8a7743.dtsi b/arch/arm/boot/dts/r8a7743.dtsi index 142949d..e4fb31c 100644 --- a/arch/arm/boot/dts/r8a7743.dtsi +++ b/arch/arm/boot/dts/r8a7743.dtsi @@ -98,8 +98,17 @@ reg = <1>; clock-frequency = <1500000000>; clocks = <&cpg CPG_CORE R8A7743_CLK_Z>; + clock-latency = <300000>; /* 300 us */ power-domains = <&sysc R8A7743_PD_CA15_CPU1>; next-level-cache = <&L2_CA15>; + + /* kHz - uV - OPPs unknown yet */ + operating-points = <1500000 1000000>, + <1312500 1000000>, + <1125000 1000000>, + < 937500 1000000>, + < 750000 1000000>, + < 375000 1000000>; }; L2_CA15: cache-controller-0 { diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi index 4d06b15..c4324b1 100644 --- a/arch/arm/boot/dts/r8a7790.dtsi +++ b/arch/arm/boot/dts/r8a7790.dtsi @@ -79,12 +79,12 @@ compatible = "arm,cortex-a15"; reg = <0>; clock-frequency = <1300000000>; - voltage-tolerance = <1>; /* 1% */ clocks = <&cpg CPG_CORE R8A7790_CLK_Z>; - clock-latency = <300000>; /* 300 us */ power-domains = <&sysc R8A7790_PD_CA15_CPU0>; next-level-cache = <&L2_CA15>; capacity-dmips-mhz = <1024>; + voltage-tolerance = <1>; /* 1% */ + clock-latency = <300000>; /* 300 us */ /* kHz - uV - OPPs unknown yet */ operating-points = <1400000 1000000>, @@ -104,6 +104,16 @@ power-domains = <&sysc R8A7790_PD_CA15_CPU1>; next-level-cache = <&L2_CA15>; capacity-dmips-mhz = <1024>; + voltage-tolerance = <1>; /* 1% */ + clock-latency = <300000>; /* 300 us */ + + /* kHz - uV - OPPs unknown yet */ + operating-points = <1400000 1000000>, + <1225000 1000000>, + <1050000 1000000>, + < 875000 1000000>, + < 700000 1000000>, + < 350000 1000000>; }; cpu2: cpu@2 { @@ -115,6 +125,16 @@ power-domains = <&sysc R8A7790_PD_CA15_CPU2>; next-level-cache = <&L2_CA15>; capacity-dmips-mhz = <1024>; + voltage-tolerance = <1>; /* 1% */ + clock-latency = <300000>; /* 300 us */ + + /* kHz - uV - OPPs unknown yet */ + operating-points = <1400000 1000000>, + <1225000 1000000>, + <1050000 1000000>, + < 875000 1000000>, + < 700000 1000000>, + < 350000 1000000>; }; cpu3: cpu@3 { @@ -126,6 +146,16 @@ power-domains = <&sysc R8A7790_PD_CA15_CPU3>; next-level-cache = <&L2_CA15>; capacity-dmips-mhz = <1024>; + voltage-tolerance = <1>; /* 1% */ + clock-latency = <300000>; /* 300 us */ + + /* kHz - uV - OPPs unknown yet */ + operating-points = <1400000 1000000>, + <1225000 1000000>, + <1050000 1000000>, + < 875000 1000000>, + < 700000 1000000>, + < 350000 1000000>; }; cpu4: cpu@100 { diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi index 6e1dd7a..d1d726a 100644 --- a/arch/arm/boot/dts/r8a7791.dtsi +++ b/arch/arm/boot/dts/r8a7791.dtsi @@ -78,11 +78,11 @@ compatible = "arm,cortex-a15"; reg = <0>; clock-frequency = <1500000000>; - voltage-tolerance = <1>; /* 1% */ clocks = <&cpg CPG_CORE R8A7791_CLK_Z>; - clock-latency = <300000>; /* 300 us */ power-domains = <&sysc R8A7791_PD_CA15_CPU0>; next-level-cache = <&L2_CA15>; + voltage-tolerance = <1>; /* 1% */ + clock-latency = <300000>; /* 300 us */ /* kHz - uV - OPPs unknown yet */ operating-points = <1500000 1000000>, @@ -101,6 +101,16 @@ clocks = <&cpg CPG_CORE R8A7791_CLK_Z>; power-domains = <&sysc R8A7791_PD_CA15_CPU1>; next-level-cache = <&L2_CA15>; + voltage-tolerance = <1>; /* 1% */ + clock-latency = <300000>; /* 300 us */ + + /* kHz - uV - OPPs unknown yet */ + operating-points = <1500000 1000000>, + <1312500 1000000>, + <1125000 1000000>, + < 937500 1000000>, + < 750000 1000000>, + < 375000 1000000>; }; L2_CA15: cache-controller-0 { diff --git a/arch/arm/boot/dts/r8a7793.dtsi b/arch/arm/boot/dts/r8a7793.dtsi index 4abecfc..1e6439b 100644 --- a/arch/arm/boot/dts/r8a7793.dtsi +++ b/arch/arm/boot/dts/r8a7793.dtsi @@ -70,10 +70,10 @@ compatible = "arm,cortex-a15"; reg = <0>; clock-frequency = <1500000000>; - voltage-tolerance = <1>; /* 1% */ clocks = <&cpg CPG_CORE R8A7793_CLK_Z>; - clock-latency = <300000>; /* 300 us */ power-domains = <&sysc R8A7793_PD_CA15_CPU0>; + voltage-tolerance = <1>; /* 1% */ + clock-latency = <300000>; /* 300 us */ /* kHz - uV - OPPs unknown yet */ operating-points = <1500000 1000000>, @@ -92,6 +92,17 @@ clock-frequency = <1500000000>; clocks = <&cpg CPG_CORE R8A7793_CLK_Z>; power-domains = <&sysc R8A7793_PD_CA15_CPU1>; + voltage-tolerance = <1>; /* 1% */ + clock-latency = <300000>; /* 300 us */ + + /* kHz - uV - OPPs unknown yet */ + operating-points = <1500000 1000000>, + <1312500 1000000>, + <1125000 1000000>, + < 937500 1000000>, + < 750000 1000000>, + < 375000 1000000>; + next-level-cache = <&L2_CA15>; }; L2_CA15: cache-controller-0 { -- 2.7.4