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Groups > linux.kernel > #1711140
| From | Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 3/5] ARC: AXS103: DTS: Add core pll node to manage cpu frequency |
| Date | 2017-08-14 18:20 +0200 |
| Message-ID | <ueqfV-6mT-35@gated-at.bofh.it> (permalink) |
| References | <ueqfT-6mT-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Add core pll node (core_clk) to manage cpu frequency.
core_clk represents pll itself.
input_clk represents clock signal source (basically xtal) which
comes to pll input.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
---
arch/arc/boot/dts/axc003.dtsi | 11 +++++++++--
arch/arc/boot/dts/axc003_idu.dtsi | 11 +++++++++--
2 files changed, 18 insertions(+), 4 deletions(-)
diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi
index cc9239e..dca7e39 100644
--- a/arch/arc/boot/dts/axc003.dtsi
+++ b/arch/arc/boot/dts/axc003.dtsi
@@ -24,10 +24,17 @@
ranges = <0x00000000 0x0 0xf0000000 0x10000000>;
- core_clk: core_clk {
+ input_clk: input-clk {
#clock-cells = <0>;
compatible = "fixed-clock";
- clock-frequency = <90000000>;
+ clock-frequency = <33333333>;
+ };
+
+ core_clk: core-clk@80 {
+ compatible = "snps,axs10x-arc-pll-clock";
+ reg = <0x80 0x10>, <0x100 0x10>;
+ #clock-cells = <0>;
+ clocks = <&input_clk>;
};
core_intc: archs-intc@cpu {
diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi
index 4ebb2170..5b56bef 100644
--- a/arch/arc/boot/dts/axc003_idu.dtsi
+++ b/arch/arc/boot/dts/axc003_idu.dtsi
@@ -24,10 +24,17 @@
ranges = <0x00000000 0x0 0xf0000000 0x10000000>;
- core_clk: core_clk {
+ input_clk: input-clk {
#clock-cells = <0>;
compatible = "fixed-clock";
- clock-frequency = <100000000>;
+ clock-frequency = <33333333>;
+ };
+
+ core_clk: core-clk@80 {
+ compatible = "snps,axs10x-arc-pll-clock";
+ reg = <0x80 0x10>, <0x100 0x10>;
+ #clock-cells = <0>;
+ clocks = <&input_clk>;
};
core_intc: archs-intc@cpu {
--
2.9.3
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[PATCH 0/5] Updates to arc clock tree managment Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> - 2017-08-14 18:20 +0200
[PATCH 2/5] ARC: AXS103: Get rid of platform specific cpu clock configuration Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> - 2017-08-14 18:20 +0200
Re: [PATCH 2/5] ARC: AXS103: Get rid of platform specific cpu clock configuration Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2017-08-22 22:40 +0200
[PATCH 1/5] ARC: set and print cpu frequency at boot time Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> - 2017-08-14 18:20 +0200
[PATCH 3/5] ARC: AXS103: DTS: Add core pll node to manage cpu frequency Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> - 2017-08-14 18:20 +0200
Re: [PATCH 3/5] ARC: AXS103: DTS: Add core pll node to manage cpu frequency Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2017-08-22 22:50 +0200
Re: [PATCH 3/5] ARC: AXS103: DTS: Add core pll node to manage cpu frequency Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2017-08-22 22:50 +0200
Re: [PATCH 3/5] ARC: AXS103: DTS: Add core pll node to manage cpu frequency Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> - 2017-08-23 14:20 +0200
[PATCH 4/5] ARC: AXS103: DTS: Set cpu frequency explicitly via dts Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> - 2017-08-14 18:20 +0200
Re: [PATCH 4/5] ARC: AXS103: DTS: Set cpu frequency explicitly via dts Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2017-08-22 23:50 +0200
Re: [PATCH 4/5] ARC: AXS103: DTS: Set cpu frequency explicitly via dts Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> - 2017-08-23 13:30 +0200
Re: [PATCH 4/5] ARC: AXS103: DTS: Set cpu frequency explicitly via dts Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2017-08-23 18:50 +0200
[PATCH 5/5] ARC: AXS103: use cpu-freq param instead of /cpu_card/core_clk Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> - 2017-08-14 18:20 +0200
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