From: Jianlong Huang <jianlong.huang@xxxxxxxxxxxxxxxx> Add pinctrl bindings for StarFive JH7110 SoC aon pinctrl controller. Signed-off-by: Jianlong Huang <jianlong.huang@xxxxxxxxxxxxxxxx> Co-developed-by: Emil Renner Berthing <kernel@xxxxxxxx> Signed-off-by: Emil Renner Berthing <kernel@xxxxxxxx> Signed-off-by: Hal Feng <hal.feng@xxxxxxxxxxxxxxxx> --- .../pinctrl/starfive,jh7110-aon-pinctrl.yaml | 126 ++++++++++++++++++ .../pinctrl/starfive,jh7110-pinctrl.h | 22 +++ 2 files changed, 148 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/starfive,jh7110-aon-pinctrl.yaml diff --git a/Documentation/devicetree/bindings/pinctrl/starfive,jh7110-aon-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/starfive,jh7110-aon-pinctrl.yaml new file mode 100644 index 000000000000..ff8098c31ecc --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/starfive,jh7110-aon-pinctrl.yaml @@ -0,0 +1,126 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/starfive,jh7110-aon-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: StarFive JH7110 Aon Pin Controller + +description: | + Bindings for the JH7110 RISC-V SoC from StarFive Technology Ltd. + + Out of the SoC's many pins only the ones named PAD_GPIO0 to PAD_GPIO4 + can be multiplexed and have configurable bias, drive strength, + schmitt trigger etc. + Some peripherals have their I/O go through the 4 "GPIOs". This also + includes PWM. + +maintainers: + - Jianlong Huang <jianlong.huang@xxxxxxxxxxxxxxxx> + +properties: + compatible: + const: starfive,jh7110-aon-pinctrl + + reg: + maxItems: 1 + + resets: + maxItems: 1 + + interrupts: + maxItems: 1 + + interrupt-controller: true + + '#interrupt-cells': + const: 2 + + gpio-controller: true + + '#gpio-cells': + const: 2 + +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: + pinmux: + description: | + The list of GPIOs and their mux settings that properties in the + node apply to. This should be set using the GPIOMUX macro. + $ref: /schemas/pinctrl/pinmux-node.yaml#/properties/pinmux + + bias-disable: true + + bias-pull-up: + type: boolean + + bias-pull-down: + type: boolean + + drive-strength: + enum: [ 2, 4, 8, 12 ] + + input-enable: true + + input-disable: true + + input-schmitt-enable: true + + input-schmitt-disable: true + + slew-rate: + maximum: 1 + + additionalProperties: false + + additionalProperties: false + +required: + - compatible + - reg + - interrupts + - interrupt-controller + - '#interrupt-cells' + - gpio-controller + - '#gpio-cells' + +additionalProperties: false + +examples: + - | + gpio@17020000 { + compatible = "starfive,jh7110-aon-pinctrl"; + reg = <0x17020000 0x10000>; + resets = <&aoncrg 2>; + interrupts = <85>; + interrupt-controller; + #interrupt-cells = <2>; + gpio-controller; + #gpio-cells = <2>; + + pwm-0 { + pwm-pins { + pinmux = <0xff030802>; + bias-disable; + drive-strength = <12>; + input-disable; + input-schmitt-disable; + slew-rate = <0>; + }; + }; + }; + +... diff --git a/include/dt-bindings/pinctrl/starfive,jh7110-pinctrl.h b/include/dt-bindings/pinctrl/starfive,jh7110-pinctrl.h index c97dde8e864c..bff3dafd5671 100644 --- a/include/dt-bindings/pinctrl/starfive,jh7110-pinctrl.h +++ b/include/dt-bindings/pinctrl/starfive,jh7110-pinctrl.h @@ -104,6 +104,28 @@ #define PAD_QSPI_DATA2 93 #define PAD_QSPI_DATA3 94 +/* aon_iomux pin */ +#define PAD_TESTEN 0 +#define PAD_RGPIO0 1 +#define PAD_RGPIO1 2 +#define PAD_RGPIO2 3 +#define PAD_RGPIO3 4 +#define PAD_RSTN 5 +#define PAD_GMAC0_MDC 6 +#define PAD_GMAC0_MDIO 7 +#define PAD_GMAC0_RXD0 8 +#define PAD_GMAC0_RXD1 9 +#define PAD_GMAC0_RXD2 10 +#define PAD_GMAC0_RXD3 11 +#define PAD_GMAC0_RXDV 12 +#define PAD_GMAC0_RXC 13 +#define PAD_GMAC0_TXD0 14 +#define PAD_GMAC0_TXD1 15 +#define PAD_GMAC0_TXD2 16 +#define PAD_GMAC0_TXD3 17 +#define PAD_GMAC0_TXEN 18 +#define PAD_GMAC0_TXC 19 + #define GPOUT_LOW 0 #define GPOUT_HIGH 1 -- 2.38.1
