# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/mediatek,mt7981-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek MT7981 Pin Controller
maintainers:
- Daniel Golle <daniel@makrotopia.org>
description:
The MediaTek's MT7981 Pin controller is used to control SoC pins.
properties:
compatible:
enum:
- mediatek,mt7981-pinctrl
reg:
minItems: 9
maxItems: 9
reg-names:
items:
- const: gpio
- const: iocfg_rt
- const: iocfg_rm
- const: iocfg_rb
- const: iocfg_lb
- const: iocfg_bl
- const: iocfg_tm
- const: iocfg_tl
- const: eint
gpio-controller: true
"#gpio-cells":
const: 2
description:
Number of cells in GPIO specifier. Since the generic GPIO binding is used,
the amount of cells must be specified as 2. See the below mentioned gpio
binding representation for description of particular cells.
gpio-ranges:
minItems: 1
maxItems: 5
description: GPIO valid number range.
interrupt-controller: true
interrupts:
maxItems: 1
"#interrupt-cells":
const: 2
allOf:
- $ref: pinctrl.yaml#
required:
- compatible
- reg
- reg-names
- gpio-controller
- "#gpio-cells"
patternProperties:
'-pins$':
type: object
additionalProperties: false
patternProperties:
'^.*mux.*$':
type: object
additionalProperties: false
description: |
pinmux configuration nodes.
The following table shows the effective values of "group", "function"
properties and chip pinout pins
groups function pins (in pin#)
---------------------------------------------------------------------
"wa_aice1" "wa_aice" 0, 1
"wa_aice2" "wa_aice" 0, 1
"wm_uart_0" "uart" 0, 1
"dfd" "dfd" 0, 1, 4, 5
"watchdog" "watchdog" 2
"pcie_pereset" "pcie" 3
"jtag" "jtag" 4, 5, 6, 7, 8
"wm_jtag_0" "jtag" 4, 5, 6, 7, 8
"wo0_jtag_0" "jtag" 9, 10, 11, 12, 13
"uart2_0" "uart" 4, 5, 6, 7
"gbe_led0" "led" 8
"pta_ext_0" "pta" 4, 5, 6
"pwm2" "pwm" 7
"net_wo0_uart_txd_0" "uart" 8
"spi1_0" "spi" 4, 5, 6, 7
"i2c0_0" "i2c" 6, 7
"dfd_ntrst" "dfd" 8
"wm_aice1" "wa_aice" 9, 10
"pwm0_0" "pwm" 13
"pwm0_1" "pwm" 15
"pwm1_0" "pwm" 14
"pwm1_1" "pwm" 15
"net_wo0_uart_txd_1" "uart" 14
"net_wo0_uart_txd_2" "uart" 15
"gbe_led1" "led" 13
"pcm" "pcm" 9, 10, 11, 12, 13, 25
"watchdog1" "watchdog" 13
"udi" "udi" 9, 10, 11, 12, 13
"drv_vbus" "usb" 14
"emmc_45" "flash" 15, 16, 17, 18, 19, 20, 21, 22, 23,
24, 25
"snfi" "flash" 16, 17, 18, 19, 20, 21
"spi0" "spi" 16, 17, 18, 19
"spi0_wp_hold" "spi" 20, 21
"spi1_1" "spi" 22, 23, 24, 25
"spi2" "spi" 26, 27, 28, 29
"spi2_wp_hold" "spi" 30, 31
"uart1_0" "uart" 16, 17, 18, 19
"uart1_1" "uart" 26, 27, 28, 29
"uart2_1" "uart" 22, 23, 24, 25
"pta_ext_1" "pta" 22, 23, 24
"wm_aurt_1" "uart" 20, 21
"wm_aurt_2" "uart" 30, 31
"wm_jtag_1" "jtag" 20, 21, 22, 23, 24
"wo0_jtag_1" "jtag" 25, 26, 27, 28, 29
"wa_aice3" "wa_aice" 28, 20
"wm_aice2" "wa_aice" 30, 31
"i2c0_1" "i2c" 30, 31
"u2_phy_i2c" "i2c" 30, 31
"uart0" "uart" 32, 33
"sgmii1_phy_i2c" "i2c" 32, 33
"u3_phy_i2c" "i2c" 32, 33
"sgmii0_phy_i2c" "i2c" 32, 33
"pcie_clk" "pcie" 34
"pcie_wake" "pcie" 35
"i2c0_2" "i2c" 36, 37
"smi_mdc_mdio" "eth" 36, 37
"gbe_ext_mdc_mdio" "eth" 36, 37
"wf0_mode1" "eth" 40, 41, 42, 43, 44, 45, 46, 47, 48,
49, 50, 51, 52, 53, 54, 55, 56
"wf0_mode3" "eth" 45, 46, 47, 48, 49, 51
"wf2g_led0" "led" 30
"wf2g_led1" "led" 34
"wf5g_led0" "led" 31
"wf5g_led1" "led" 35
"mt7531_int" "eth" 38
"ant_sel" "ant" 14, 15, 16, 17, 18, 19, 20, 21, 22,
23, 24, 25, 34, 35
$ref: /schemas/pinctrl/pinmux-node.yaml
properties:
function:
description:
A string containing the name of the function to mux to the group.
enum: [wa_aice, dfd, jtag, pta, pcm, udi, usb, ant, eth, i2c, led,
pwm, spi, uart, watchdog, flash, pcie]
groups:
description:
An array of strings. Each string contains the name of a group.
required:
- function
- groups
allOf:
- if:
properties:
function:
const: wa_aice
then:
properties:
groups:
enum: [wa_aice1, wa_aice2, wm_aice1_1, wa_aice3, wm_aice1_2]
- if:
properties:
function:
const: dfd
then:
properties:
groups:
enum: [dfd, dfd_ntrst]
- if:
properties:
function:
const: jtag
then:
properties:
groups:
enum: [jtag, wm_jtag_0, wo0_jtag_0, wo0_jtag_1, wm_jtag_1]
- if:
properties:
function:
const: pta
then:
properties:
groups:
enum: [pta_ext_0, pta_ext_1]
- if:
properties:
function:
const: pcm
then:
properties:
groups:
enum: [pcm]
- if:
properties:
function:
const: udi
then:
properties:
groups:
enum: [udi]
- if:
properties:
function:
const: usb
then:
properties:
groups:
enum: [drv_vbus]
- if:
properties:
function:
const: ant
then:
properties:
groups:
enum: [ant_sel]
- if:
properties:
function:
const: eth
then:
properties:
groups:
enum: [smi_mdc_mdio, gbe_ext_mdc_mdio, wf0_mode1, wf0_mode3,
mt7531_int]
- if:
properties:
function:
const: i2c
then:
properties:
groups:
enum: [i2c0_0, i2c0_1, u2_phy_i2c, sgmii1_phy_i2c, u3_phy_i2c,
sgmii0_phy_i2c, i2c0_2]
- if:
properties:
function:
const: led
then:
properties:
groups:
enum: [gbe_led0, gbe_led1, wf2g_led0, wf2g_led1, wf5g_led0,
wf5g_led1]
- if:
properties:
function:
const: pwm
then:
properties:
groups:
items:
enum: [pwm2, pwm0_0, pwm0_1, pwm1_0, pwm1_1]
maxItems: 3
- if:
properties:
function:
const: spi
then:
properties:
groups:
items:
enum: [spi1_0, spi0, spi0_wp_hold, spi1_1, spi2,
spi2_wp_hold]
maxItems: 4
- if:
properties:
function:
const: uart
then:
properties:
groups:
items:
enum: [wm_uart_0, uart2_0, net_wo0_uart_txd_0,
net_wo0_uart_txd_1, net_wo0_uart_txd_2, uart1_0,
uart1_1, uart2_1, wm_aurt_1, wm_aurt_2, uart0]
- if:
properties:
function:
const: watchdog
then:
properties:
groups:
enum: [watchdog]
- if:
properties:
function:
const: flash
then:
properties:
groups:
items:
enum: [emmc_45, snfi]
maxItems: 1
- if:
properties:
function:
const: pcie
then:
properties:
groups:
items:
enum: [pcie_clk, pcie_wake, pcie_pereset]
maxItems: 3
'^.*conf.*$':
type: object
additionalProperties: false
description: pinconf configuration nodes.
$ref: /schemas/pinctrl/pincfg-node.yaml
properties:
pins:
description:
An array of strings. Each string contains the name of a pin.
items:
enum: [GPIO_WPS, GPIO_RESET, SYS_WATCHDOG, PCIE_PERESET_N,
JTAG_JTDO, JTAG_JTDI, JTAG_JTMS, JTAG_JTCLK, JTAG_JTRST_N,
WO_JTAG_JTDO, WO_JTAG_JTDI, WO_JTAG_JTMS, WO_JTAG_JTCLK,
WO_JTAG_JTRST_N, USB_VBUS, PWM0, SPI0_CLK, SPI0_MOSI,
SPI0_MISO, SPI0_CS, SPI0_HOLD, SPI0_WP, SPI1_CLK,
SPI1_MOSI, SPI1_MISO, SPI1_CS, SPI2_CLK, SPI2_MOSI,
SPI2_MISO, SPI2_CS, SPI2_HOLD, SPI2_WP, UART0_RXD,
UART0_TXD, PCIE_CLK_REQ, PCIE_WAKE_N, SMI_MDC, SMI_MDIO,
GBE_INT, GBE_RESET, WF_DIG_RESETB, WF_CBA_RESETB,
WF_XO_REQ, WF_TOP_CLK, WF_TOP_DATA, WF_HB1, WF_HB2, WF_HB3,
WF_HB4, WF_HB0, WF_HB0_B, WF_HB5, WF_HB6, WF_HB7, WF_HB8,
WF_HB9, WF_HB10]
maxItems: 57
bias-disable: true
bias-pull-up:
oneOf:
- type: boolean
description: normal pull up.
- enum: [100, 101, 102, 103]
description:
PUPD/R1/R0 pull down type. See MTK_PUPD_SET_R1R0 defines in
dt-bindings/pinctrl/mt65xx.h.
bias-pull-down:
oneOf:
- type: boolean
description: normal pull down.
- enum: [100, 101, 102, 103]
description:
PUPD/R1/R0 pull down type. See MTK_PUPD_SET_R1R0 defines in
dt-bindings/pinctrl/mt65xx.h.
input-enable: true
input-disable: true
output-enable: true
output-low: true
output-high: true
input-schmitt-enable: true
input-schmitt-disable: true
drive-strength:
enum: [2, 4, 6, 8, 10, 12, 14, 16]
mediatek,pull-up-adv:
description: |
Valid arguments for 'mediatek,pull-up-adv' are '0', '1', '2', '3'
Pull up settings for 2 pull resistors, R0 and R1. Valid arguments
are described as below:
0: (R1, R0) = (0, 0) which means R1 disabled and R0 disabled.
1: (R1, R0) = (0, 1) which means R1 disabled and R0 enabled.
2: (R1, R0) = (1, 0) which means R1 enabled and R0 disabled.
3: (R1, R0) = (1, 1) which means R1 enabled and R0 enabled.
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1, 2, 3]
mediatek,pull-down-adv:
description: |
Valid arguments for 'mediatek,pull-up-adv' are '0', '1', '2', '3'
Pull down settings for 2 pull resistors, R0 and R1. Valid arguments
are described as below:
0: (R1, R0) = (0, 0) which means R1 disabled and R0 disabled.
1: (R1, R0) = (0, 1) which means R1 disabled and R0 enabled.
2: (R1, R0) = (1, 0) which means R1 enabled and R0 disabled.
3: (R1, R0) = (1, 1) which means R1 enabled and R0 enabled.
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1, 2, 3]
required:
- pins
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/pinctrl/mt65xx.h>
soc {
#address-cells = <2>;
#size-cells = <2>;
pio: pinctrl@11d00000 {
compatible = "mediatek,mt7981-pinctrl";
reg = <0 0x11d00000 0 0x1000>,
<0 0x11c00000 0 0x1000>,
<0 0x11c10000 0 0x1000>,
<0 0x11d20000 0 0x1000>,
<0 0x11e00000 0 0x1000>,
<0 0x11e20000 0 0x1000>,
<0 0x11f00000 0 0x1000>,
<0 0x11f10000 0 0x1000>,
<0 0x1000b000 0 0x1000>;
reg-names = "gpio", "iocfg_rt", "iocfg_rm",
"iocfg_rb", "iocfg_lb", "iocfg_bl",
"iocfg_tm", "iocfg_tl", "eint";
gpio-controller;
#gpio-cells = <2>;
gpio-ranges = <&pio 0 0 56>;
interrupt-controller;
interrupts = <GIC_SPI 225 IRQ_TYPE_LEVEL_HIGH>;
interrupt-parent = <&gic>;
#interrupt-cells = <2>;
mdio_pins: mdio-pins {
mux {
function = "eth";
groups = "smi_mdc_mdio";
};
};
spi0_flash_pins: spi0-pins {
mux {
function = "spi";
groups = "spi0", "spi0_wp_hold";
};
conf-pu {
pins = "SPI0_CS", "SPI0_HOLD", "SPI0_WP";
drive-strength = <MTK_DRIVE_8mA>;
bias-pull-up = <MTK_PUPD_SET_R1R0_11>;
};
conf-pd {
pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO";
drive-strength = <MTK_DRIVE_8mA>;
bias-pull-down = <MTK_PUPD_SET_R1R0_11>;
};
};
pcie_pins: pcie-pins {
mux {
function = "pcie";
groups = "pcie_clk", "pcie_wake", "pcie_pereset";
};
};
};
};