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Date: Fri, 30 Sep 2022 15:38:45 +0800
From: Hal Feng <hal.feng@...ux.starfivetech.com>
To: linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
linux-clk@...r.kernel.org, linux-gpio@...r.kernel.org
Cc: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Thomas Gleixner <tglx@...utronix.de>,
Marc Zyngier <maz@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>,
Stephen Boyd <sboyd@...nel.org>,
Michael Turquette <mturquette@...libre.com>,
Linus Walleij <linus.walleij@...aro.org>,
Emil Renner Berthing <kernel@...il.dk>,
Hal Feng <hal.feng@...ux.starfivetech.com>,
linux-kernel@...r.kernel.org
Subject: [PATCH v1 25/30] dt-bindings: pinctrl: Add StarFive JH7110 pinctrl bindings
From: Jianlong Huang <jianlong.huang@...rfivetech.com>
Add pinctrl bindings for StarFive JH7110 SoC.
Signed-off-by: Jianlong Huang <jianlong.huang@...rfivetech.com>
Signed-off-by: Hal Feng <hal.feng@...ux.starfivetech.com>
---
.../pinctrl/starfive,jh7110-pinctrl.yaml | 202 ++++++++++++++++++
1 file changed, 202 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pinctrl/starfive,jh7110-pinctrl.yaml
diff --git a/Documentation/devicetree/bindings/pinctrl/starfive,jh7110-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/starfive,jh7110-pinctrl.yaml
new file mode 100644
index 000000000000..482012ad8a14
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/starfive,jh7110-pinctrl.yaml
@@ -0,0 +1,202 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/starfive,jh7110-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 Pin Controller Device Tree Bindings
+
+description: |
+ Bindings for the JH7110 RISC-V SoC from StarFive Technology Ltd.
+
+maintainers:
+ - Jianlong Huang <jianlong.huang@...rfivetech.com>
+
+properties:
+ compatible:
+ enum:
+ - starfive,jh7110-sys-pinctrl
+ - starfive,jh7110-aon-pinctrl
+
+ reg:
+ minItems: 2
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: control
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ "#gpio-cells":
+ const: 2
+
+ interrupts:
+ maxItems: 1
+ description: The GPIO parent interrupt.
+
+ interrupt-controller: true
+
+ "#interrupt-cells":
+ const: 2
+
+ ngpios:
+ enum:
+ - 64
+ - 4
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - clocks
+ - "#gpio-cells"
+ - interrupts
+ - interrupt-controller
+ - "#interrupt-cells"
+
+patternProperties:
+ '-[0-9]+$':
+ type: object
+ patternProperties:
+ '-pins$':
+ type: object
+ description: |
+ A pinctrl node should contain at least one subnode representing the
+ pinctrl groups available on the machine. Each subnode will list the
+ pins it needs, and how they should be configured, with regard to
+ muxer configuration, system signal configuration, pin groups for
+ vin/vout module, pin voltage, mux functions for output, mux functions
+ for output enable, mux functions for input.
+
+ properties:
+ starfive,pins:
+ description: |
+ The list of pin identifiers that properties in the node apply to.
+ This should be set using the PAD_GPIOX macros.
+ This has to be specified.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 63
+
+ starfive,pinmux:
+ description: |
+ The list of GPIOs and their mux functions that properties in the
+ node apply to. This should be set using the PAD_GPIOX_FUNC_SEL
+ macro with its value.
+ This is optional for some pins.
+ The value of PAD_GPIOX_FUNC_SEL macro can selects:
+ 0: GPIOX mux function 0,
+ 1: GPIOX mux function 1,
+ 2: GPIOX mux function 2.
+
+ starfive,pin-ioconfig:
+ description: |
+ This is used to configure the core settings of system signals.
+ The combination of GPIO_IE or GPIO_DS or GPIO_PU or GPIO_PD or
+ GPIO_SLEW or GPIO_SMT or GPIO_POS.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ starfive,padmux:
+ description: |
+ The padmux is for vin/vout module to select pin groups.
+ 0: vout will be set at pins from PAD_GPIO7 to PAD_GPIO34,
+ when PAD_GPIOX_FUNC_SEL is set as 1.
+ vin will be set at pins from PAD_GPIO6 to PAD_GPIO20.
+ when PAD_GPIOX_FUNC_SEL is set as 2.
+ 1: vout will be set at pins from PAD_GPIO36 to PAD_GPIO63,
+ when PAD_GPIOX_FUNC_SEL is set as 1.
+ vin will be set at pins from PAD_GPIO21 to PAD_GPIO35.
+ when PAD_GPIOX_FUNC_SEL is set as 2.
+ 2: vin will be set at pins from PAD_GPIO36 to PAD_GPIO50,
+ when PAD_GPIOX_FUNC_SEL is set as 2
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2]
+
+ starfive,pin-syscon:
+ description: |
+ This is used to set pin voltage,
+ 0: 3.3V, 1: 2.5V, 2: 1.8V.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2]
+
+ starfive,pin-gpio-dout:
+ description: |
+ This is used to set their mux functions for output.
+ This should be set using the GPO_XXX macro,
+ such as GPO_LOW, GPO_UART0_SOUT.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 107
+
+ starfive,pin-gpio-doen:
+ description: |
+ This is used to set their mux functions for output enable.
+ This should be set using the OEN_XXX macro,
+ such as OEN_LOW, OEN_I2C0_IC_CLK_OE.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 49
+
+ starfive,pin-gpio-din:
+ description: |
+ This is used to set their mux functions for input.
+ This should be set using the GPI_XXX macro,
+ such as GPI_CAN0_CTRL_RXD, GPI_I2C0_IC_CLK_IN_A.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 90
+
+ additionalProperties: false
+
+ additionalProperties: false
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/starfive-jh7110-sys.h>
+ #include <dt-bindings/reset/starfive-jh7110.h>
+ #include <dt-bindings/pinctrl/pinctrl-starfive-jh7110.h>
+
+ gpio: gpio@...40000 {
+ compatible = "starfive,jh7110-sys-pinctrl";
+ reg = <0x0 0x13040000 0x0 0x10000>;
+ reg-names = "control";
+ clocks = <&clkgen JH7110_SYS_IOMUX_PCLK>;
+ resets = <&rstgen RSTN_U0_SYS_IOMUX_PRESETN>;
+ interrupts = <86>;
+ interrupt-controller;
+ #gpio-cells = <2>;
+ ngpios = <64>;
+ status = "okay";
+
+ uart0_pins: uart0-pins {
+ uart0-pins-tx {
+ starfive,pins = <PAD_GPIO5>;
+ starfive,pin-ioconfig = <IO(GPIO_IE(1) | GPIO_DS(3))>;
+ starfive,pin-gpio-dout = <GPO_UART0_SOUT>;
+ starfive,pin-gpio-doen = <OEN_LOW>;
+ };
+
+ uart0-pins-rx {
+ starfive,pins = <PAD_GPIO6>;
+ starfive,pinmux = <PAD_GPIO6_FUNC_SEL 0>;
+ starfive,pin-ioconfig = <IO(GPIO_IE(1) | GPIO_PU(1))>;
+ starfive,pin-gpio-doen = <OEN_HIGH>;
+ starfive,pin-gpio-din = <GPI_UART0_SIN>;
+ };
+ };
+ };
+
+ &uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins>;
+ status = "okay";
+ };
+
+...
--
2.17.1
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