* [PATCH v2 1/2] arm64: dts: uniphier: add CPU clock and OPP table for LD11 SoC
@ 2016-10-20 1:15 ` Masahiro Yamada
0 siblings, 0 replies; 10+ messages in thread
From: Masahiro Yamada @ 2016-10-20 1:15 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Viresh Kumar, Masahiro Yamada, devicetree, linux-kernel,
Rob Herring, Will Deacon, Mark Rutland, Catalin Marinas
Add a CPU clock to every CPU node and a CPU OPP table to use the
generic cpufreq driver.
Note:
clock-latency-ns (300ns) was calculated based on the CPU-gear switch
sequencer spec; it takes 12 clock cycles on the sequencer running
at 50 MHz, plus a bit additional latency.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
Changes in v2:
- Match the node name to the opp-hz property.
arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi | 38 ++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
index 73e0acf..bb05f0a 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
@@ -70,14 +70,18 @@
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0 0x000>;
+ clocks = <&sys_clk 33>;
enable-method = "psci";
+ operating-points-v2 = <&cluster0_opp>;
};
cpu1: cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0 0x001>;
+ clocks = <&sys_clk 33>;
enable-method = "psci";
+ operating-points-v2 = <&cluster0_opp>;
};
};
@@ -86,6 +90,40 @@
method = "smc";
};
+ cluster0_opp: opp_table {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp@245000000 {
+ opp-hz = /bits/ 64 <245000000>;
+ clock-latency-ns = <300>;
+ };
+ opp@250000000 {
+ opp-hz = /bits/ 64 <250000000>;
+ clock-latency-ns = <300>;
+ };
+ opp@490000000 {
+ opp-hz = /bits/ 64 <490000000>;
+ clock-latency-ns = <300>;
+ };
+ opp@500000000 {
+ opp-hz = /bits/ 64 <500000000>;
+ clock-latency-ns = <300>;
+ };
+ opp@653334000 {
+ opp-hz = /bits/ 64 <653334000>;
+ clock-latency-ns = <300>;
+ };
+ opp@666667000 {
+ opp-hz = /bits/ 64 <666667000>;
+ clock-latency-ns = <300>;
+ };
+ opp@980000000 {
+ opp-hz = /bits/ 64 <980000000>;
+ clock-latency-ns = <300>;
+ };
+ };
+
clocks {
refclk: ref {
compatible = "fixed-clock";
--
1.9.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH v2 1/2] arm64: dts: uniphier: add CPU clock and OPP table for LD11 SoC
@ 2016-10-20 1:15 ` Masahiro Yamada
0 siblings, 0 replies; 10+ messages in thread
From: Masahiro Yamada @ 2016-10-20 1:15 UTC (permalink / raw)
To: linux-arm-kernel
Add a CPU clock to every CPU node and a CPU OPP table to use the
generic cpufreq driver.
Note:
clock-latency-ns (300ns) was calculated based on the CPU-gear switch
sequencer spec; it takes 12 clock cycles on the sequencer running
at 50 MHz, plus a bit additional latency.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
Changes in v2:
- Match the node name to the opp-hz property.
arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi | 38 ++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
index 73e0acf..bb05f0a 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
@@ -70,14 +70,18 @@
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0 0x000>;
+ clocks = <&sys_clk 33>;
enable-method = "psci";
+ operating-points-v2 = <&cluster0_opp>;
};
cpu1: cpu at 1 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0 0x001>;
+ clocks = <&sys_clk 33>;
enable-method = "psci";
+ operating-points-v2 = <&cluster0_opp>;
};
};
@@ -86,6 +90,40 @@
method = "smc";
};
+ cluster0_opp: opp_table {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp at 245000000 {
+ opp-hz = /bits/ 64 <245000000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 250000000 {
+ opp-hz = /bits/ 64 <250000000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 490000000 {
+ opp-hz = /bits/ 64 <490000000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 500000000 {
+ opp-hz = /bits/ 64 <500000000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 653334000 {
+ opp-hz = /bits/ 64 <653334000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 666667000 {
+ opp-hz = /bits/ 64 <666667000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 980000000 {
+ opp-hz = /bits/ 64 <980000000>;
+ clock-latency-ns = <300>;
+ };
+ };
+
clocks {
refclk: ref {
compatible = "fixed-clock";
--
1.9.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH v2 2/2] arm64: dts: uniphier: add CPU clocks and OPP tables for LD20 SoC
2016-10-20 1:15 ` Masahiro Yamada
@ 2016-10-20 1:15 ` Masahiro Yamada
-1 siblings, 0 replies; 10+ messages in thread
From: Masahiro Yamada @ 2016-10-20 1:15 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Viresh Kumar, Masahiro Yamada, devicetree, linux-kernel,
Rob Herring, Will Deacon, Mark Rutland, Catalin Marinas
Add a CPU clock to every CPU node and CPU OPP tables to use the
generic cpufreq driver. All the CPUs in each cluster share the
same OPP table.
Note:
clock-latency-ns (300ns) was calculated based on the CPU-gear switch
sequencer spec; it takes 12 clock cycles on the sequencer running
at 50 MHz, plus a bit additional latency.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
Changes in v2:
- Match the node name to the opp-hz property.
arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi | 84 ++++++++++++++++++++++++
1 file changed, 84 insertions(+)
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
index 6f48e82..7404678 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
@@ -79,28 +79,36 @@
device_type = "cpu";
compatible = "arm,cortex-a72", "arm,armv8";
reg = <0 0x000>;
+ clocks = <&sys_clk 32>;
enable-method = "psci";
+ operating-points-v2 = <&cluster0_opp>;
};
cpu1: cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a72", "arm,armv8";
reg = <0 0x001>;
+ clocks = <&sys_clk 32>;
enable-method = "psci";
+ operating-points-v2 = <&cluster0_opp>;
};
cpu2: cpu@100 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0 0x100>;
+ clocks = <&sys_clk 33>;
enable-method = "psci";
+ operating-points-v2 = <&cluster1_opp>;
};
cpu3: cpu@101 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0 0x101>;
+ clocks = <&sys_clk 33>;
enable-method = "psci";
+ operating-points-v2 = <&cluster1_opp>;
};
};
@@ -109,6 +117,82 @@
method = "smc";
};
+ cluster0_opp: opp_table0 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp@250000000 {
+ opp-hz = /bits/ 64 <250000000>;
+ clock-latency-ns = <300>;
+ };
+ opp@275000000 {
+ opp-hz = /bits/ 64 <275000000>;
+ clock-latency-ns = <300>;
+ };
+ opp@500000000 {
+ opp-hz = /bits/ 64 <500000000>;
+ clock-latency-ns = <300>;
+ };
+ opp@550000000 {
+ opp-hz = /bits/ 64 <550000000>;
+ clock-latency-ns = <300>;
+ };
+ opp@666667000 {
+ opp-hz = /bits/ 64 <666667000>;
+ clock-latency-ns = <300>;
+ };
+ opp@733334000 {
+ opp-hz = /bits/ 64 <733334000>;
+ clock-latency-ns = <300>;
+ };
+ opp@1000000000 {
+ opp-hz = /bits/ 64 <1000000000>;
+ clock-latency-ns = <300>;
+ };
+ opp@1100000000 {
+ opp-hz = /bits/ 64 <1100000000>;
+ clock-latency-ns = <300>;
+ };
+ };
+
+ cluster1_opp: opp_table1 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp@250000000 {
+ opp-hz = /bits/ 64 <250000000>;
+ clock-latency-ns = <300>;
+ };
+ opp@275000000 {
+ opp-hz = /bits/ 64 <275000000>;
+ clock-latency-ns = <300>;
+ };
+ opp@500000000 {
+ opp-hz = /bits/ 64 <500000000>;
+ clock-latency-ns = <300>;
+ };
+ opp@550000000 {
+ opp-hz = /bits/ 64 <550000000>;
+ clock-latency-ns = <300>;
+ };
+ opp@666666666 {
+ opp-hz = /bits/ 64 <666667000>;
+ clock-latency-ns = <300>;
+ };
+ opp@733333333 {
+ opp-hz = /bits/ 64 <733334000>;
+ clock-latency-ns = <300>;
+ };
+ opp@1000000000 {
+ opp-hz = /bits/ 64 <1000000000>;
+ clock-latency-ns = <300>;
+ };
+ opp@1100000000 {
+ opp-hz = /bits/ 64 <1100000000>;
+ clock-latency-ns = <300>;
+ };
+ };
+
clocks {
refclk: ref {
compatible = "fixed-clock";
--
1.9.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH v2 2/2] arm64: dts: uniphier: add CPU clocks and OPP tables for LD20 SoC
@ 2016-10-20 1:15 ` Masahiro Yamada
0 siblings, 0 replies; 10+ messages in thread
From: Masahiro Yamada @ 2016-10-20 1:15 UTC (permalink / raw)
To: linux-arm-kernel
Add a CPU clock to every CPU node and CPU OPP tables to use the
generic cpufreq driver. All the CPUs in each cluster share the
same OPP table.
Note:
clock-latency-ns (300ns) was calculated based on the CPU-gear switch
sequencer spec; it takes 12 clock cycles on the sequencer running
at 50 MHz, plus a bit additional latency.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
Changes in v2:
- Match the node name to the opp-hz property.
arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi | 84 ++++++++++++++++++++++++
1 file changed, 84 insertions(+)
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
index 6f48e82..7404678 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
@@ -79,28 +79,36 @@
device_type = "cpu";
compatible = "arm,cortex-a72", "arm,armv8";
reg = <0 0x000>;
+ clocks = <&sys_clk 32>;
enable-method = "psci";
+ operating-points-v2 = <&cluster0_opp>;
};
cpu1: cpu at 1 {
device_type = "cpu";
compatible = "arm,cortex-a72", "arm,armv8";
reg = <0 0x001>;
+ clocks = <&sys_clk 32>;
enable-method = "psci";
+ operating-points-v2 = <&cluster0_opp>;
};
cpu2: cpu at 100 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0 0x100>;
+ clocks = <&sys_clk 33>;
enable-method = "psci";
+ operating-points-v2 = <&cluster1_opp>;
};
cpu3: cpu at 101 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0 0x101>;
+ clocks = <&sys_clk 33>;
enable-method = "psci";
+ operating-points-v2 = <&cluster1_opp>;
};
};
@@ -109,6 +117,82 @@
method = "smc";
};
+ cluster0_opp: opp_table0 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp at 250000000 {
+ opp-hz = /bits/ 64 <250000000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 275000000 {
+ opp-hz = /bits/ 64 <275000000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 500000000 {
+ opp-hz = /bits/ 64 <500000000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 550000000 {
+ opp-hz = /bits/ 64 <550000000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 666667000 {
+ opp-hz = /bits/ 64 <666667000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 733334000 {
+ opp-hz = /bits/ 64 <733334000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 1000000000 {
+ opp-hz = /bits/ 64 <1000000000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 1100000000 {
+ opp-hz = /bits/ 64 <1100000000>;
+ clock-latency-ns = <300>;
+ };
+ };
+
+ cluster1_opp: opp_table1 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp at 250000000 {
+ opp-hz = /bits/ 64 <250000000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 275000000 {
+ opp-hz = /bits/ 64 <275000000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 500000000 {
+ opp-hz = /bits/ 64 <500000000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 550000000 {
+ opp-hz = /bits/ 64 <550000000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 666666666 {
+ opp-hz = /bits/ 64 <666667000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 733333333 {
+ opp-hz = /bits/ 64 <733334000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 1000000000 {
+ opp-hz = /bits/ 64 <1000000000>;
+ clock-latency-ns = <300>;
+ };
+ opp at 1100000000 {
+ opp-hz = /bits/ 64 <1100000000>;
+ clock-latency-ns = <300>;
+ };
+ };
+
clocks {
refclk: ref {
compatible = "fixed-clock";
--
1.9.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* Re: [PATCH v2 2/2] arm64: dts: uniphier: add CPU clocks and OPP tables for LD20 SoC
@ 2016-10-20 3:55 ` Viresh Kumar
0 siblings, 0 replies; 10+ messages in thread
From: Viresh Kumar @ 2016-10-20 3:55 UTC (permalink / raw)
To: Masahiro Yamada
Cc: linux-arm-kernel, devicetree, linux-kernel, Rob Herring,
Will Deacon, Mark Rutland, Catalin Marinas
On 20-10-16, 10:15, Masahiro Yamada wrote:
> + opp@666666666 {
> + opp-hz = /bits/ 64 <666667000>;
> + clock-latency-ns = <300>;
> + };
> + opp@733333333 {
> + opp-hz = /bits/ 64 <733334000>;
> + clock-latency-ns = <300>;
> + };
Forgot changing these ? Please make sure to update all of them.
--
viresh
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2 2/2] arm64: dts: uniphier: add CPU clocks and OPP tables for LD20 SoC
@ 2016-10-20 3:55 ` Viresh Kumar
0 siblings, 0 replies; 10+ messages in thread
From: Viresh Kumar @ 2016-10-20 3:55 UTC (permalink / raw)
To: Masahiro Yamada
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Will Deacon,
Mark Rutland, Catalin Marinas
On 20-10-16, 10:15, Masahiro Yamada wrote:
> + opp@666666666 {
> + opp-hz = /bits/ 64 <666667000>;
> + clock-latency-ns = <300>;
> + };
> + opp@733333333 {
> + opp-hz = /bits/ 64 <733334000>;
> + clock-latency-ns = <300>;
> + };
Forgot changing these ? Please make sure to update all of them.
--
viresh
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
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^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 2/2] arm64: dts: uniphier: add CPU clocks and OPP tables for LD20 SoC
@ 2016-10-20 3:55 ` Viresh Kumar
0 siblings, 0 replies; 10+ messages in thread
From: Viresh Kumar @ 2016-10-20 3:55 UTC (permalink / raw)
To: linux-arm-kernel
On 20-10-16, 10:15, Masahiro Yamada wrote:
> + opp at 666666666 {
> + opp-hz = /bits/ 64 <666667000>;
> + clock-latency-ns = <300>;
> + };
> + opp at 733333333 {
> + opp-hz = /bits/ 64 <733334000>;
> + clock-latency-ns = <300>;
> + };
Forgot changing these ? Please make sure to update all of them.
--
viresh
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2 2/2] arm64: dts: uniphier: add CPU clocks and OPP tables for LD20 SoC
2016-10-20 3:55 ` Viresh Kumar
(?)
@ 2016-10-20 3:59 ` Masahiro Yamada
-1 siblings, 0 replies; 10+ messages in thread
From: Masahiro Yamada @ 2016-10-20 3:59 UTC (permalink / raw)
To: Viresh Kumar
Cc: Mark Rutland, devicetree, Catalin Marinas, Will Deacon,
Linux Kernel Mailing List, Rob Herring, linux-arm-kernel
2016-10-20 12:55 GMT+09:00 Viresh Kumar <viresh.kumar@linaro.org>:
> On 20-10-16, 10:15, Masahiro Yamada wrote:
>> + opp@666666666 {
>> + opp-hz = /bits/ 64 <666667000>;
>> + clock-latency-ns = <300>;
>> + };
>> + opp@733333333 {
>> + opp-hz = /bits/ 64 <733334000>;
>> + clock-latency-ns = <300>;
>> + };
>
> Forgot changing these ? Please make sure to update all of them.
>
Oops, I missed that.
Will fix soon.
Thanks!
--
Best Regards
Masahiro Yamada
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2 2/2] arm64: dts: uniphier: add CPU clocks and OPP tables for LD20 SoC
@ 2016-10-20 3:59 ` Masahiro Yamada
0 siblings, 0 replies; 10+ messages in thread
From: Masahiro Yamada @ 2016-10-20 3:59 UTC (permalink / raw)
To: Viresh Kumar
Cc: Mark Rutland, devicetree-u79uwXL29TY76Z2rM5mHXA, Catalin Marinas,
Will Deacon, Linux Kernel Mailing List, Rob Herring,
linux-arm-kernel
2016-10-20 12:55 GMT+09:00 Viresh Kumar <viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>:
> On 20-10-16, 10:15, Masahiro Yamada wrote:
>> + opp@666666666 {
>> + opp-hz = /bits/ 64 <666667000>;
>> + clock-latency-ns = <300>;
>> + };
>> + opp@733333333 {
>> + opp-hz = /bits/ 64 <733334000>;
>> + clock-latency-ns = <300>;
>> + };
>
> Forgot changing these ? Please make sure to update all of them.
>
Oops, I missed that.
Will fix soon.
Thanks!
--
Best Regards
Masahiro Yamada
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 2/2] arm64: dts: uniphier: add CPU clocks and OPP tables for LD20 SoC
@ 2016-10-20 3:59 ` Masahiro Yamada
0 siblings, 0 replies; 10+ messages in thread
From: Masahiro Yamada @ 2016-10-20 3:59 UTC (permalink / raw)
To: linux-arm-kernel
2016-10-20 12:55 GMT+09:00 Viresh Kumar <viresh.kumar@linaro.org>:
> On 20-10-16, 10:15, Masahiro Yamada wrote:
>> + opp at 666666666 {
>> + opp-hz = /bits/ 64 <666667000>;
>> + clock-latency-ns = <300>;
>> + };
>> + opp at 733333333 {
>> + opp-hz = /bits/ 64 <733334000>;
>> + clock-latency-ns = <300>;
>> + };
>
> Forgot changing these ? Please make sure to update all of them.
>
Oops, I missed that.
Will fix soon.
Thanks!
--
Best Regards
Masahiro Yamada
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2016-10-20 3:59 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-10-20 1:15 [PATCH v2 1/2] arm64: dts: uniphier: add CPU clock and OPP table for LD11 SoC Masahiro Yamada
2016-10-20 1:15 ` Masahiro Yamada
2016-10-20 1:15 ` [PATCH v2 2/2] arm64: dts: uniphier: add CPU clocks and OPP tables for LD20 SoC Masahiro Yamada
2016-10-20 1:15 ` Masahiro Yamada
2016-10-20 3:55 ` Viresh Kumar
2016-10-20 3:55 ` Viresh Kumar
2016-10-20 3:55 ` Viresh Kumar
2016-10-20 3:59 ` Masahiro Yamada
2016-10-20 3:59 ` Masahiro Yamada
2016-10-20 3:59 ` Masahiro Yamada
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