From: Xingyu Wu <xingyu.wu@starfivetech.com>
To: <linux-riscv@lists.infradead.org>, <devicetree@vger.kernel.org>,
"Michael Turquette" <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Philipp Zabel <p.zabel@pengutronix.de>,
Conor Dooley <conor@kernel.org>,
"Emil Renner Berthing" <kernel@esmil.dk>
Cc: Rob Herring <robh+dt@kernel.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Hal Feng <hal.feng@starfivetech.com>,
Xingyu Wu <xingyu.wu@starfivetech.com>,
William Qiu <william.qiu@starfivetech.com>,
<linux-kernel@vger.kernel.org>, <linux-clk@vger.kernel.org>
Subject: [PATCH v4 1/7] dt-bindings: clock: Add StarFive JH7110 PLL clock generator
Date: Fri, 12 May 2023 10:20:30 +0800 [thread overview]
Message-ID: <20230512022036.97987-2-xingyu.wu@starfivetech.com> (raw)
In-Reply-To: <20230512022036.97987-1-xingyu.wu@starfivetech.com>
Add bindings for the PLL clock generator on the JH7110 RISC-V SoC.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
---
.../bindings/clock/starfive,jh7110-pll.yaml | 46 +++++++++++++++++++
.../dt-bindings/clock/starfive,jh7110-crg.h | 6 +++
2 files changed, 52 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml
diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml
new file mode 100644
index 000000000000..8aa8c7b8e42f
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/starfive,jh7110-pll.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 PLL Clock Generator
+
+description:
+ This PLL are high speed, low jitter frequency synthesizers in JH7110.
+ Each PLL clocks work in integer mode or fraction mode by some dividers,
+ and the configuration registers and dividers are set in several syscon
+ registers. So pll node should be a child of SYS-SYSCON node.
+ The formula for calculating frequency is that,
+ Fvco = Fref * (NI + NF) / M / Q1
+
+maintainers:
+ - Xingyu Wu <xingyu.wu@starfivetech.com>
+
+properties:
+ compatible:
+ const: starfive,jh7110-pll
+
+ clocks:
+ maxItems: 1
+ description: Main Oscillator (24 MHz)
+
+ '#clock-cells':
+ const: 1
+ description:
+ See <dt-bindings/clock/starfive,jh7110-crg.h> for valid indices.
+
+required:
+ - compatible
+ - clocks
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ pll-clock-controller {
+ compatible = "starfive,jh7110-pll";
+ clocks = <&osc>;
+ #clock-cells = <1>;
+ };
diff --git a/include/dt-bindings/clock/starfive,jh7110-crg.h b/include/dt-bindings/clock/starfive,jh7110-crg.h
index 06257bfd9ac1..086a6ddcf380 100644
--- a/include/dt-bindings/clock/starfive,jh7110-crg.h
+++ b/include/dt-bindings/clock/starfive,jh7110-crg.h
@@ -6,6 +6,12 @@
#ifndef __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__
#define __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__
+/* PLL clocks */
+#define JH7110_CLK_PLL0_OUT 0
+#define JH7110_CLK_PLL1_OUT 1
+#define JH7110_CLK_PLL2_OUT 2
+#define JH7110_PLLCLK_END 3
+
/* SYSCRG clocks */
#define JH7110_SYSCLK_CPU_ROOT 0
#define JH7110_SYSCLK_CPU_CORE 1
--
2.25.1
next prev parent reply other threads:[~2023-05-12 2:22 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-12 2:20 [PATCH v4 0/7] Add PLL clocks driver and syscon for StarFive JH7110 SoC Xingyu Wu
2023-05-12 2:20 ` Xingyu Wu [this message]
2023-05-19 13:57 ` [PATCH v4 1/7] dt-bindings: clock: Add StarFive JH7110 PLL clock generator Torsten Duwe
2023-05-19 14:16 ` Conor Dooley
2023-05-23 2:40 ` Xingyu Wu
2023-05-23 2:42 ` Xingyu Wu
2023-05-23 2:56 ` Xingyu Wu
2023-05-23 8:28 ` Conor Dooley
2023-05-23 11:10 ` Torsten Duwe
2023-05-23 11:28 ` Conor Dooley
2023-05-24 9:00 ` Xingyu Wu
2023-05-24 10:19 ` Conor Dooley
2023-05-26 7:34 ` Torsten Duwe
2023-05-26 12:23 ` Conor Dooley
2023-06-02 9:42 ` Xingyu Wu
2023-06-12 3:06 ` Xingyu Wu
2023-06-02 16:39 ` Torsten Duwe
2023-06-02 16:43 ` Conor Dooley
2023-06-02 16:57 ` Torsten Duwe
2023-06-02 16:59 ` Conor Dooley
2023-06-02 22:56 ` Torsten Duwe
2023-05-12 2:20 ` [PATCH v4 2/7] clk: starfive: Add StarFive JH7110 PLL clock driver Xingyu Wu
2023-06-01 11:02 ` Emil Renner Berthing
2023-06-02 9:39 ` Xingyu Wu
2023-06-02 14:53 ` Emil Renner Berthing
2023-05-12 2:20 ` [PATCH v4 3/7] dt-bindings: clock: jh7110-syscrg: Add PLL clock inputs Xingyu Wu
2023-05-12 6:47 ` Conor Dooley
2023-05-12 8:07 ` Xingyu Wu
2023-05-12 9:35 ` Conor Dooley
2023-05-12 9:56 ` Xingyu Wu
2023-05-12 13:49 ` Conor Dooley
2023-05-19 7:59 ` Xingyu Wu
2023-05-19 8:12 ` Conor Dooley
2023-05-19 8:26 ` Xingyu Wu
2023-05-12 2:20 ` [PATCH v4 4/7] clk: starfive: jh7110-sys: Modify PLL clocks source Xingyu Wu
2023-05-12 2:20 ` [PATCH v4 5/7] dt-bindings: soc: starfive: Add StarFive syscon module Xingyu Wu
2023-05-12 6:35 ` Krzysztof Kozlowski
2023-05-12 6:43 ` Conor Dooley
2023-05-12 6:50 ` Krzysztof Kozlowski
2023-05-12 7:24 ` Xingyu Wu
2023-05-12 7:34 ` Krzysztof Kozlowski
2023-05-12 6:50 ` Krzysztof Kozlowski
2023-05-12 7:51 ` Xingyu Wu
2023-05-12 16:15 ` Krzysztof Kozlowski
2023-05-12 2:20 ` [PATCH v4 6/7] riscv: dts: starfive: jh7110: Add syscon nodes Xingyu Wu
2023-05-12 6:36 ` Krzysztof Kozlowski
2023-05-12 2:20 ` [PATCH v4 7/7] riscv: dts: starfive: jh7110: Add PLL clock node and modify syscrg node Xingyu Wu
2023-05-12 6:37 ` Krzysztof Kozlowski
2023-05-12 7:15 ` Xingyu Wu
2023-05-12 7:22 ` Krzysztof Kozlowski
2023-05-12 7:25 ` Xingyu Wu
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