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>,
"Rob Herring" <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Philipp Zabel <p.zabel@pengutronix.de>,
Conor Dooley <conor@kernel.org>,
Emil Renner Berthing <emil.renner.berthing@canonical.com>
Cc: 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 v7 1/7] dt-bindings: clock: Add StarFive JH7110 PLL clock generator
Date: Mon, 17 Jul 2023 10:30:34 +0800 [thread overview]
Message-ID: <20230717023040.78860-2-xingyu.wu@starfivetech.com> (raw)
In-Reply-To: <20230717023040.78860-1-xingyu.wu@starfivetech.com>
Add bindings for the PLL clock generator on the JH7110 RISC-V SoC.
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
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..be8300ce86d0
--- /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:
+ These PLLs are high speed, low jitter frequency synthesizers in the JH7110.
+ Each PLL works in integer mode or fraction mode, with configuration
+ registers in the sys syscon. So the PLLs node should be a child of
+ SYS-SYSCON node.
+ The formula for calculating frequency is
+ 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:
+ - |
+ 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..3fb5e31c3be4 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_PLLCLK_PLL0_OUT 0
+#define JH7110_PLLCLK_PLL1_OUT 1
+#define JH7110_PLLCLK_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
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next prev parent reply other threads:[~2023-07-17 2:32 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-17 2:30 [PATCH v7 0/7] Add PLL clocks driver and syscon for StarFive JH7110 SoC Xingyu Wu
2023-07-17 2:30 ` Xingyu Wu [this message]
2023-07-19 15:45 ` [PATCH v7 1/7] dt-bindings: clock: Add StarFive JH7110 PLL clock generator Emil Renner Berthing
2023-07-17 2:30 ` [PATCH v7 2/7] dt-bindings: soc: starfive: Add StarFive syscon module Xingyu Wu
2023-07-17 2:30 ` [PATCH v7 3/7] dt-bindings: clock: jh7110-syscrg: Add PLL clock inputs Xingyu Wu
2023-07-17 2:30 ` [PATCH v7 4/7] clk: starfive: Add StarFive JH7110 PLL clock driver Xingyu Wu
2023-07-17 2:30 ` [PATCH v7 5/7] clk: starfive: jh7110-sys: Add PLL clocks source from DTS Xingyu Wu
2023-07-19 15:49 ` Emil Renner Berthing
2023-07-17 2:30 ` [PATCH v7 6/7] riscv: dts: starfive: jh7110: Add syscon nodes Xingyu Wu
2023-07-17 2:30 ` [PATCH v7 7/7] riscv: dts: starfive: jh7110: Add PLL clocks source in SYSCRG node Xingyu Wu
2023-07-17 18:14 ` [PATCH v7 0/7] Add PLL clocks driver and syscon for StarFive JH7110 SoC Conor Dooley
2023-07-18 5:48 ` Xingyu Wu
2023-07-20 16:29 ` (subset) " Conor Dooley
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