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Sun, 9 Aug 2026 01:51:05 +0000 From: Changhuang Liang To: Michael Turquette , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Stephen Boyd , Brian Masney , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Philipp Zabel , Emil Renner Berthing Cc: Chen Wang , Inochi Amaoto , Alexey Charkov , Thomas Bogendoerfer , Keguang Zhang , linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, Changhuang Liang Subject: [PATCH v4 1/8] dt-bindings: soc: starfive: Add StarFive JHB100 syscon modules Date: Sat, 8 Aug 2026 18:50:47 -0700 Message-Id: <20260809015054.210577-2-changhuang.liang@starfivetech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260809015054.210577-1-changhuang.liang@starfivetech.com> References: <20260809015054.210577-1-changhuang.liang@starfivetech.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: NT0PR01CA0016.CHNPR01.prod.partner.outlook.cn (2406:e500:c510::18) To ZQ4PR01MB1202.CHNPR01.prod.partner.outlook.cn (2406:e500:c550:17::6) Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: ZQ4PR01MB1202:EE_|ZQ4PR01MB1265:EE_ X-MS-Office365-Filtering-Correlation-Id: 9a8b2152-4ecc-4b32-40f7-08def5b8ac8d X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|52116014|376014|1800799024|23010399003|366016|921020|38350700014|6133799003|56012099006|10067099003|3023799007|18002099003|22082099003; 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Add the PLL clocks for the sys0, per0, and per1 domains under syscon, as well as the PCIe RP reset. Signed-off-by: Changhuang Liang Reviewed-by: Krzysztof Kozlowski --- .../soc/starfive/starfive,jhb100-syscon.yaml | 115 ++++++++++++++++++ MAINTAINERS | 5 + .../dt-bindings/clock/starfive,jhb100-crg.h | 12 ++ .../dt-bindings/reset/starfive,jhb100-crg.h | 3 + 4 files changed, 135 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/starfive/starfive,jhb100-syscon.yaml diff --git a/Documentation/devicetree/bindings/soc/starfive/starfive,jhb100-syscon.yaml b/Documentation/devicetree/bindings/soc/starfive/starfive,jhb100-syscon.yaml new file mode 100644 index 000000000000..000f53acab34 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/starfive/starfive,jhb100-syscon.yaml @@ -0,0 +1,115 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/starfive/starfive,jhb100-syscon.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: StarFive JHB100 SoC system controller + +maintainers: + - Kevin Xie + - Changhuang Liang + +description: + The StarFive JHB100 SoC system controller contains MMIO registers used by + other hardware modules (e.g., PLL, eMMC, PCIe). These modules access + specific register offsets, bit masks, and shifts within the system + controller region for configuration and status. + +properties: + compatible: + items: + - enum: + - starfive,jhb100-b2h-syscon + - starfive,jhb100-gpu-syscon + - starfive,jhb100-h2b-syscon + - starfive,jhb100-host-syscon + - starfive,jhb100-husb-syscon + - starfive,jhb100-husbcmn-syscon + - starfive,jhb100-husbd-syscon + - starfive,jhb100-npu-syscon + - starfive,jhb100-pcieep-ecsr-syscon + - starfive,jhb100-pcierp-ecsr-syscon + - starfive,jhb100-pcierp-syscon + - starfive,jhb100-per0-syscon + - starfive,jhb100-per1-syscon + - starfive,jhb100-per2-syscon + - starfive,jhb100-per3-syscon + - starfive,jhb100-sfc-filter-syscon + - starfive,jhb100-strap-syscon + - starfive,jhb100-sys0-syscon + - starfive,jhb100-sys1-syscon + - starfive,jhb100-sys2-syscon + - starfive,jhb100-usb-syscon + - starfive,jhb100-vout-syscon + - const: syscon + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + '#clock-cells': + const: 1 + + '#reset-cells': + const: 1 + +required: + - compatible + - reg + +allOf: + - if: + properties: + compatible: + contains: + enum: + - starfive,jhb100-per0-syscon + - starfive,jhb100-per1-syscon + - starfive,jhb100-sys0-syscon + then: + required: + - clocks + - '#clock-cells' + else: + properties: + clocks: false + '#clock-cells': false + + - if: + properties: + compatible: + contains: + const: starfive,jhb100-pcierp-syscon + then: + required: + - '#reset-cells' + else: + properties: + '#reset-cells': false + +additionalProperties: false + +examples: + - | + syscon@13010000 { + compatible = "starfive,jhb100-sys0-syscon", "syscon"; + reg = <0x13010000 0x2000>; + clocks = <&osc>; + #clock-cells = <1>; + }; + + syscon@13014000 { + compatible = "starfive,jhb100-sys1-syscon", "syscon"; + reg = <0x13014000 0x4000>; + }; + + syscon@11719000 { + compatible = "starfive,jhb100-pcierp-syscon", "syscon"; + reg = <0x11719000 0x1000>; + #reset-cells = <1>; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index 709600e80951..cecb4f279160 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -26094,6 +26094,11 @@ S: Maintained F: drivers/reset/starfive/reset-starfive-jhb1* F: include/dt-bindings/reset/starfive,jhb1*.h +STARFIVE JHB100 SYSCON +M: Changhuang Liang +S: Maintained +F: Documentation/devicetree/bindings/soc/starfive/starfive,jhb100-syscon.yaml + STATIC BRANCH/CALL M: Peter Zijlstra M: Josh Poimboeuf diff --git a/include/dt-bindings/clock/starfive,jhb100-crg.h b/include/dt-bindings/clock/starfive,jhb100-crg.h index bdf7d628b381..4270bfa532e8 100644 --- a/include/dt-bindings/clock/starfive,jhb100-crg.h +++ b/include/dt-bindings/clock/starfive,jhb100-crg.h @@ -8,6 +8,18 @@ #ifndef __DT_BINDINGS_CLOCK_STARFIVE_JHB100_H__ #define __DT_BINDINGS_CLOCK_STARFIVE_JHB100_H__ +/* SYS0PLL clocks */ +#define JHB100_SYS0PLL_PLL2_OUT 0 +#define JHB100_SYS0PLL_PLL3_OUT 1 +#define JHB100_SYS0PLL_PLL4_OUT 2 +#define JHB100_SYS0PLL_PLL5_OUT 3 + +/* PER0PLL clocks */ +#define JHB100_PER0PLL_PLL6_OUT 0 + +/* PER1PLL clocks */ +#define JHB100_PER1PLL_PLL7_OUT 0 + /* SYS0CRG clocks */ #define JHB100_SYS0CLK_BMCPCIERP_NCNOC_MAIN 17 #define JHB100_SYS0CLK_BMCPCIERP_NCNOC_CFG 18 diff --git a/include/dt-bindings/reset/starfive,jhb100-crg.h b/include/dt-bindings/reset/starfive,jhb100-crg.h index 872a4dd25beb..1489bb01c2bd 100644 --- a/include/dt-bindings/reset/starfive,jhb100-crg.h +++ b/include/dt-bindings/reset/starfive,jhb100-crg.h @@ -183,4 +183,7 @@ #define JHB100_PER3RST_MAIN_RSTN_PERIPH3_SENSORS 5 #define JHB100_PER3RST_IOMUX_PRESETN 6 +/* PCIERP SYSCON resets */ +#define JHB100_PCIERP_SYSCONRST_PE2RST_OUT 0 + #endif /* __DT_BINDINGS_RESET_STARFIVE_JHB100_CRG_H__ */ -- 2.25.1