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Date: Tue, 20 Dec 2022 08:55:27 +0800
From: Hal Feng <hal.feng@...rfivetech.com>
To: <linux-riscv@...ts.infradead.org>, <devicetree@...r.kernel.org>,
<linux-gpio@...r.kernel.org>
CC: Conor Dooley <conor@...nel.org>,
Palmer Dabbelt <palmer@...belt.com>,
"Rob Herring" <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Linus Walleij <linus.walleij@...aro.org>,
Emil Renner Berthing <emil.renner.berthing@...onical.com>,
Jianlong Huang <jianlong.huang@...rfivetech.com>,
Hal Feng <hal.feng@...rfivetech.com>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH v3 3/5] dt-bindings: pinctrl: Add StarFive JH7110 aon pinctrl
From: Jianlong Huang <jianlong.huang@...rfivetech.com>
Add pinctrl bindings for StarFive JH7110 SoC aon pinctrl controller.
Signed-off-by: Jianlong Huang <jianlong.huang@...rfivetech.com>
Co-developed-by: Emil Renner Berthing <kernel@...il.dk>
Signed-off-by: Emil Renner Berthing <kernel@...il.dk>
Signed-off-by: Hal Feng <hal.feng@...rfivetech.com>
---
.../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@...rfivetech.com>
+
+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@...20000 {
+ 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
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