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Message-ID: <20241024064356.865055-2-inochiama@gmail.com>
Date: Thu, 24 Oct 2024 14:43:54 +0800
From: Inochi Amaoto <inochiama@...il.com>
To: Chen Wang <unicorn_wang@...look.com>,
Linus Walleij <linus.walleij@...aro.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Inochi Amaoto <inochiama@...look.com>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Guo Ren <guoren@...nel.org>,
Arnd Bergmann <arnd@...db.de>
Cc: Yixun Lan <dlan@...too.org>,
Inochi Amaoto <inochiama@...il.com>,
linux-gpio@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-riscv@...ts.infradead.org
Subject: [PATCH 1/3] dt-bindings: pinctrl: Add pinctrl for Sophgo SG2042 series SoC
SG2042 introduces a simple pinctrl device for all configurable pins.
The pinconf and pinmux are mixed in a 16 bits register for each pin.
It supports setting pull up/down, drive strength and input schmitt
trigger.
Add support for SG2042 pinctrl device.
Signed-off-by: Inochi Amaoto <inochiama@...il.com>
---
.../pinctrl/sophgo,sg2042-pinctrl.yaml | 96 +++++++++
include/dt-bindings/pinctrl/pinctrl-sg2042.h | 196 ++++++++++++++++++
2 files changed, 292 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pinctrl/sophgo,sg2042-pinctrl.yaml
create mode 100644 include/dt-bindings/pinctrl/pinctrl-sg2042.h
diff --git a/Documentation/devicetree/bindings/pinctrl/sophgo,sg2042-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/sophgo,sg2042-pinctrl.yaml
new file mode 100644
index 000000000000..5060deacd580
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/sophgo,sg2042-pinctrl.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/sophgo,sg2042-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo SG2042 Pin Controller
+
+maintainers:
+ - Inochi Amaoto <inochiama@...look.com>
+
+properties:
+ compatible:
+ enum:
+ - sophgo,sg2042-pinctrl
+
+ reg:
+ maxItems: 1
+
+patternProperties:
+ '-cfg$':
+ type: object
+ description:
+ A pinctrl node should contain at least one subnode representing the
+ pinctrl groups available on the machine.
+
+ additionalProperties: false
+
+ patternProperties:
+ '-pins$':
+ type: object
+ description: |
+ Each subnode will list the pins it needs, and how they should
+ be configured, with regard to muxer configuration, bias input
+ enable/disable, input schmitt trigger enable, drive strength
+ output enable/disable state. For configuration detail,
+ refer to https://github.com/sophgo/sophgo-doc/.
+
+ allOf:
+ - $ref: pincfg-node.yaml#
+ - $ref: pinmux-node.yaml#
+
+ 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.
+
+ bias-disable: true
+
+ bias-pull-up:
+ type: boolean
+
+ bias-pull-down:
+ type: boolean
+
+ drive-strength-microamp:
+ description: typical current when output high level.
+ enum: [ 4300, 6400, 8500, 10600, 12800, 14900, 17000, 19100,
+ 21200, 23300, 25500, 27600, 29700, 31800, 33900, 36000]
+
+ input-schmitt-enable: true
+
+ input-schmitt-disable: true
+
+ required:
+ - pinmux
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/pinctrl/pinctrl-sg2042.h>
+
+ pinctrl@...11000 {
+ compatible = "sophgo,sg2042-pinctrl";
+ reg = <30011000 0x1000>;
+
+ uart0_cfg: uart0-cfg {
+ uart0-pins {
+ pinmux = <PINMUX(PIN_UART0_TX, 0)>,
+ <PINMUX(PIN_UART0_RX, 0)>;
+ bias-pull-up;
+ drive-strength-microamp = <10600>;
+ };
+ };
+ };
+
+...
diff --git a/include/dt-bindings/pinctrl/pinctrl-sg2042.h b/include/dt-bindings/pinctrl/pinctrl-sg2042.h
new file mode 100644
index 000000000000..79d5bb8e04f8
--- /dev/null
+++ b/include/dt-bindings/pinctrl/pinctrl-sg2042.h
@@ -0,0 +1,196 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+/*
+ * Copyright (C) 2024 Inochi Amaoto <inochiama@...look.com>
+ *
+ */
+
+#ifndef _DT_BINDINGS_PINCTRL_SG2042_H
+#define _DT_BINDINGS_PINCTRL_SG2042_H
+
+#define PINMUX(pin, mux) \
+ (((pin) & 0xffff) | (((mux) & 0xff) << 16))
+
+#define PIN_LPC_LCLK 0
+#define PIN_LPC_LFRAME 1
+#define PIN_LPC_LAD0 2
+#define PIN_LPC_LAD1 3
+#define PIN_LPC_LAD2 4
+#define PIN_LPC_LAD3 5
+#define PIN_LPC_LDRQ0 6
+#define PIN_LPC_LDRQ1 7
+#define PIN_LPC_SERIRQ 8
+#define PIN_LPC_CLKRUN 9
+#define PIN_LPC_LPME 10
+#define PIN_LPC_LPCPD 11
+#define PIN_LPC_LSMI 12
+#define PIN_PCIE0_L0_RESET 13
+#define PIN_PCIE0_L1_RESET 14
+#define PIN_PCIE0_L0_WAKEUP 15
+#define PIN_PCIE0_L1_WAKEUP 16
+#define PIN_PCIE0_L0_CLKREQ_IN 17
+#define PIN_PCIE0_L1_CLKREQ_IN 18
+#define PIN_PCIE1_L0_RESET 19
+#define PIN_PCIE1_L1_RESET 20
+#define PIN_PCIE1_L0_WAKEUP 21
+#define PIN_PCIE1_L1_WAKEUP 22
+#define PIN_PCIE1_L0_CLKREQ_IN 23
+#define PIN_PCIE1_L1_CLKREQ_IN 24
+#define PIN_SPIF0_CLK_SEL1 25
+#define PIN_SPIF0_CLK_SEL0 26
+#define PIN_SPIF0_WP 27
+#define PIN_SPIF0_HOLD 28
+#define PIN_SPIF0_SDI 29
+#define PIN_SPIF0_CS 30
+#define PIN_SPIF0_SCK 31
+#define PIN_SPIF0_SDO 32
+#define PIN_SPIF1_CLK_SEL1 33
+#define PIN_SPIF1_CLK_SEL0 34
+#define PIN_SPIF1_WP 35
+#define PIN_SPIF1_HOLD 36
+#define PIN_SPIF1_SDI 37
+#define PIN_SPIF1_CS 38
+#define PIN_SPIF1_SCK 39
+#define PIN_SPIF1_SDO 40
+#define PIN_EMMC_WP 41
+#define PIN_EMMC_CD 42
+#define PIN_EMMC_RST 43
+#define PIN_EMMC_PWR_EN 44
+#define PIN_SDIO_CD 45
+#define PIN_SDIO_WP 46
+#define PIN_SDIO_RST 47
+#define PIN_SDIO_PWR_EN 48
+#define PIN_RGMII0_TXD0 49
+#define PIN_RGMII0_TXD1 50
+#define PIN_RGMII0_TXD2 51
+#define PIN_RGMII0_TXD3 52
+#define PIN_RGMII0_TXCTRL 53
+#define PIN_RGMII0_RXD0 54
+#define PIN_RGMII0_RXD1 55
+#define PIN_RGMII0_RXD2 56
+#define PIN_RGMII0_RXD3 57
+#define PIN_RGMII0_RXCTRL 58
+#define PIN_RGMII0_TXC 59
+#define PIN_RGMII0_RXC 60
+#define PIN_RGMII0_REFCLKO 61
+#define PIN_RGMII0_IRQ 62
+#define PIN_RGMII0_MDC 63
+#define PIN_RGMII0_MDIO 64
+#define PIN_PWM0 65
+#define PIN_PWM1 66
+#define PIN_PWM2 67
+#define PIN_PWM3 68
+#define PIN_FAN0 69
+#define PIN_FAN1 70
+#define PIN_FAN2 71
+#define PIN_FAN3 72
+#define PIN_IIC0_SDA 73
+#define PIN_IIC0_SCL 74
+#define PIN_IIC1_SDA 75
+#define PIN_IIC1_SCL 76
+#define PIN_IIC2_SDA 77
+#define PIN_IIC2_SCL 78
+#define PIN_IIC3_SDA 79
+#define PIN_IIC3_SCL 80
+#define PIN_UART0_TX 81
+#define PIN_UART0_RX 82
+#define PIN_UART0_RTS 83
+#define PIN_UART0_CTS 84
+#define PIN_UART1_TX 85
+#define PIN_UART1_RX 86
+#define PIN_UART1_RTS 87
+#define PIN_UART1_CTS 88
+#define PIN_UART2_TX 89
+#define PIN_UART2_RX 90
+#define PIN_UART2_RTS 91
+#define PIN_UART2_CTS 92
+#define PIN_UART3_TX 93
+#define PIN_UART3_RX 94
+#define PIN_UART3_RTS 95
+#define PIN_UART3_CTS 96
+#define PIN_SPI0_CS0 97
+#define PIN_SPI0_CS1 98
+#define PIN_SPI0_SDI 99
+#define PIN_SPI0_SDO 100
+#define PIN_SPI0_SCK 101
+#define PIN_SPI1_CS0 102
+#define PIN_SPI1_CS1 103
+#define PIN_SPI1_SDI 104
+#define PIN_SPI1_SDO 105
+#define PIN_SPI1_SCK 106
+#define PIN_JTAG0_TDO 107
+#define PIN_JTAG0_TCK 108
+#define PIN_JTAG0_TDI 109
+#define PIN_JTAG0_TMS 110
+#define PIN_JTAG0_TRST 111
+#define PIN_JTAG0_SRST 112
+#define PIN_JTAG1_TDO 113
+#define PIN_JTAG1_TCK 114
+#define PIN_JTAG1_TDI 115
+#define PIN_JTAG1_TMS 116
+#define PIN_JTAG1_TRST 117
+#define PIN_JTAG1_SRST 118
+#define PIN_JTAG2_TDO 119
+#define PIN_JTAG2_TCK 120
+#define PIN_JTAG2_TDI 121
+#define PIN_JTAG2_TMS 122
+#define PIN_JTAG2_TRST 123
+#define PIN_JTAG2_SRST 124
+#define PIN_GPIO0 125
+#define PIN_GPIO1 126
+#define PIN_GPIO2 127
+#define PIN_GPIO3 128
+#define PIN_GPIO4 129
+#define PIN_GPIO5 130
+#define PIN_GPIO6 131
+#define PIN_GPIO7 132
+#define PIN_GPIO8 133
+#define PIN_GPIO9 134
+#define PIN_GPIO10 135
+#define PIN_GPIO11 136
+#define PIN_GPIO12 137
+#define PIN_GPIO13 138
+#define PIN_GPIO14 139
+#define PIN_GPIO15 140
+#define PIN_GPIO16 141
+#define PIN_GPIO17 142
+#define PIN_GPIO18 143
+#define PIN_GPIO19 144
+#define PIN_GPIO20 145
+#define PIN_GPIO21 146
+#define PIN_GPIO22 147
+#define PIN_GPIO23 148
+#define PIN_GPIO24 149
+#define PIN_GPIO25 150
+#define PIN_GPIO26 151
+#define PIN_GPIO27 152
+#define PIN_GPIO28 153
+#define PIN_GPIO29 154
+#define PIN_GPIO30 155
+#define PIN_GPIO31 156
+#define PIN_MODE_SEL0 157
+#define PIN_MODE_SEL1 158
+#define PIN_MODE_SEL2 159
+#define PIN_BOOT_SEL0 160
+#define PIN_BOOT_SEL1 161
+#define PIN_BOOT_SEL2 162
+#define PIN_BOOT_SEL3 163
+#define PIN_BOOT_SEL4 164
+#define PIN_BOOT_SEL5 165
+#define PIN_BOOT_SEL6 166
+#define PIN_BOOT_SEL7 167
+#define PIN_MULTI_SCKT 168
+#define PIN_SCKT_ID0 169
+#define PIN_SCKT_ID1 170
+#define PIN_PLL_CLK_IN_MAIN 171
+#define PIN_PLL_CLK_IN_DDR_L 172
+#define PIN_PLL_CLK_IN_DDR_R 173
+#define PIN_XTAL_32K 174
+#define PIN_SYS_RST 175
+#define PIN_PWR_BUTTON 176
+#define PIN_TEST_EN 177
+#define PIN_TEST_MODE_MBIST 178
+#define PIN_TEST_MODE_SCAN 179
+#define PIN_TEST_MODE_BSD 180
+#define PIN_BISR_BYP 181
+
+#endif /* _DT_BINDINGS_PINCTRL_SG2042_H */
--
2.47.0
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