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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
// Copyright (C) 2021-2022 Samuel Holland <samuel@sholland.org>
/*
* gpio line names
*
* The Nezha-D1 has a 40-pin IO header. Some of these pins are routed
* directly to pads on the SoC, others come from an 8-bit pcf857x IO
* expander. Therefore, these line names are specified in two places:
* one set for the pcf857x, and one set for the pio controller.
*
* Lines which are routed to the 40-pin header are named as follows:
* <pin#> [<pin name>]
* where:
* <pin#> is the actual pin number of the 40-pin header
* <pin name> is the name of the pin by function/gpio#
*
* For details regarding pin numbers and names see the schematics (under
* "IO EXPAND"):
* http://dl.linux-sunxi.org/D1/D1_Nezha_development_board_schematic_diagram_20210224.pdf
*/
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/dts-v1/;
#include "sun20i-d1.dtsi"
#include "sun20i-common-regulators.dtsi"
/ {
model = "Allwinner D1 Nezha";
compatible = "allwinner,d1-nezha", "allwinner,sun20i-d1";
aliases {
ethernet0 = &emac;
ethernet1 = &xr829;
serial0 = &uart0;
};
chosen {
stdout-path = "serial0:115200n8";
};
reg_usbvbus: usbvbus {
compatible = "regulator-fixed";
regulator-name = "usbvbus";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
gpio = <&pio 3 19 GPIO_ACTIVE_HIGH>; /* PD19 */
enable-active-high;
vin-supply = <®_vcc>;
};
/*
* This regulator is PWM-controlled, but the PWM controller is not
* yet supported, so fix the regulator to its default voltage.
*/
reg_vdd_cpu: vdd-cpu {
compatible = "regulator-fixed";
regulator-name = "vdd-cpu";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
vin-supply = <®_vcc>;
};
wifi_pwrseq: wifi-pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&pio 6 12 GPIO_ACTIVE_LOW>; /* PG12 */
};
};
&cpu0 {
cpu-supply = <®_vdd_cpu>;
};
&dcxo {
clock-frequency = <24000000>;
};
&ehci0 {
status = "okay";
};
&ehci1 {
status = "okay";
};
&emac {
pinctrl-0 = <&rgmii_pe_pins>;
pinctrl-names = "default";
phy-handle = <&ext_rgmii_phy>;
phy-mode = "rgmii-id";
phy-supply = <®_vcc_3v3>;
status = "okay";
};
&i2c2 {
pinctrl-0 = <&i2c2_pb0_pins>;
pinctrl-names = "default";
status = "okay";
pcf8574a: gpio@38 {
compatible = "nxp,pcf8574a";
reg = <0x38>;
interrupt-parent = <&pio>;
interrupts = <1 2 IRQ_TYPE_LEVEL_LOW>; /* PB2 */
interrupt-controller;
gpio-controller;
#gpio-cells = <2>;
#interrupt-cells = <2>;
gpio-line-names =
"pin13 [gpio8]",
"pin16 [gpio10]",
"pin18 [gpio11]",
"pin26 [gpio17]",
"pin22 [gpio14]",
"pin28 [gpio19]",
"pin37 [gpio23]",
"pin11 [gpio6]";
};
};
&mdio {
ext_rgmii_phy: ethernet-phy@1 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <1>;
};
};
&mmc0 {
bus-width = <4>;
cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
disable-wp;
vmmc-supply = <®_vcc_3v3>;
vqmmc-supply = <®_vcc_3v3>;
pinctrl-0 = <&mmc0_pins>;
pinctrl-names = "default";
status = "okay";
};
&mmc1 {
bus-width = <4>;
mmc-pwrseq = <&wifi_pwrseq>;
non-removable;
vmmc-supply = <®_vcc_3v3>;
vqmmc-supply = <®_vcc_3v3>;
pinctrl-0 = <&mmc1_pins>;
pinctrl-names = "default";
status = "okay";
xr829: wifi@1 {
reg = <1>;
interrupt-parent = <&pio>;
interrupts = <6 10 IRQ_TYPE_LEVEL_LOW>; /* PG10 */
interrupt-names = "host-wake";
};
};
&ohci0 {
status = "okay";
};
&ohci1 {
status = "okay";
};
&uart0 {
pinctrl-0 = <&uart0_pb8_pins>;
pinctrl-names = "default";
status = "okay";
};
&uart1 {
uart-has-rtscts;
pinctrl-0 = <&uart1_pg6_pins>, <&uart1_pg8_rts_cts_pins>;
pinctrl-names = "default";
status = "okay";
/* XR829 bluetooth is connected here */
};
&usb_otg {
dr_mode = "otg";
status = "okay";
};
&usbphy {
usb0_id_det-gpios = <&pio 3 21 GPIO_ACTIVE_HIGH>; /* PD21 */
usb0_vbus_det-gpios = <&pio 3 20 GPIO_ACTIVE_HIGH>; /* PD20 */
usb0_vbus-supply = <®_usbvbus>;
usb1_vbus-supply = <®_vcc>;
status = "okay";
};
&pio {
gpio-line-names =
/* Port A */
"", "", "", "", "", "", "", "",
"", "", "", "", "", "", "", "",
"", "", "", "", "", "", "", "",
"", "", "", "", "", "", "", "",
/* Port B */
"pin5 [gpio2/twi2-sck]",
"pin3 [gpio1/twi2-sda]",
"",
"pin38 [gpio24/i2s2-din]",
"pin40 [gpio25/i2s2-dout]",
"pin12 [gpio7/i2s-clk]",
"pin35 [gpio22/i2s2-lrck]",
"",
"pin8 [gpio4/uart0-txd]",
"pin10 [gpio5/uart0-rxd]",
"",
"",
"pin15 [gpio9]",
"", "", "", "",
"", "", "", "", "", "", "", "",
"", "", "", "", "", "", "", "",
/* Port C */
"",
"pin31 [gpio21]",
"", "", "", "", "", "",
"", "", "", "", "", "", "", "",
"", "", "", "", "", "", "", "",
"", "", "", "", "", "", "", "",
/* Port D */
"", "", "", "", "", "", "", "",
"", "",
"pin24 [gpio16/spi1-ce0]",
"pin23 [gpio15/spi1-clk]",
"pin19 [gpio12/spi1-mosi]",
"pin21 [gpio13/spi1-miso]",
"pin27 [gpio18/spi1-hold]",
"pin29 [gpio20/spi1-wp]",
"", "", "", "", "", "",
"pin7 [gpio3/pwm]";
};
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