mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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6e085e64a2
NetCube Systems Kumquat is a board based on the Allwinner V3s SoC, including: - 64MB DDR2 included in SoC - 10/100 Mbps Ethernet - USB-C DRD - Audio Codec - Isolated CAN-FD - ESP32 over SDIO - 8MB SPI-NOR Flash for bootloader - I2C EEPROM for MAC addresses - SDIO Connector for eMMC or SD-Card - 8x 12/24V IOs, 4x normally open relays - DS3232 RTC with Battery Backup - QWIIC connectors for external I2C devices Signed-off-by: Lukas Schmid <lukas.schmid@netcube.li> Link: https://patch.msgid.link/20250205164716.2509650-5-lukas.schmid@netcube.li Signed-off-by: Chen-Yu Tsai <wens@csie.org>
277 lines
5.7 KiB
Plaintext
277 lines
5.7 KiB
Plaintext
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Copyright (C) 2025 Lukas Schmid <lukas.schmid@netcube.li>
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*/
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/dts-v1/;
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#include "sun8i-v3s.dtsi"
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#include <dt-bindings/input/input.h>
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#include <dt-bindings/leds/common.h>
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#include <dt-bindings/gpio/gpio.h>
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/{
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model = "NetCube Systems Kumquat";
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compatible = "netcube,kumquat", "allwinner,sun8i-v3s";
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aliases {
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serial0 = &uart0;
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ethernet0 = &emac;
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rtc0 = &ds3232;
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rtc1 = &rtc; /* not battery backed */
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};
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chosen {
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stdout-path = "serial0:115200n8";
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};
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/* 40 MHz Crystal Oscillator on PCB */
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clk_can0: clock-can0 {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <40000000>;
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};
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gpio-keys {
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compatible = "gpio-keys";
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autorepeat;
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key-user {
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label = "GPIO Key User";
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linux,code = <KEY_PROG1>;
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gpios = <&pio 1 2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* PB2 */
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};
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};
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leds {
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compatible = "gpio-leds";
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led-heartbeat {
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gpios = <&pio 4 4 GPIO_ACTIVE_HIGH>; /* PE4 */
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linux,default-trigger = "heartbeat";
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color = <LED_COLOR_ID_GREEN>;
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function = LED_FUNCTION_HEARTBEAT;
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};
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led-mmc0-act {
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gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
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linux,default-trigger = "mmc0";
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color = <LED_COLOR_ID_GREEN>;
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function = LED_FUNCTION_DISK;
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};
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};
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/* EA3036C Switching 3 Channel Regulator - Channel 2 */
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reg_vcc3v3: regulator-3v3 {
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compatible = "regulator-fixed";
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regulator-name = "vcc3v3";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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vin-supply = <®_vcc5v0>;
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};
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/* K7805-1000R3 Switching Regulator supplied from main 12/24V terminal block */
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reg_vcc5v0: regulator-5v0 {
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compatible = "regulator-fixed";
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regulator-name = "vcc5v0";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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};
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};
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&codec {
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allwinner,audio-routing =
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"Headphone", "HP",
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"Headphone", "HPCOM",
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"MIC1", "Mic",
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"Mic", "HBIAS";
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status = "okay";
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};
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&ehci {
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status = "okay";
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};
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&emac {
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allwinner,leds-active-low;
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nvmem-cells = <ð0_macaddress>;
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nvmem-cell-names = "mac-address";
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status = "okay";
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};
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&i2c0 {
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status = "okay";
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eeprom0: eeprom@50 {
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compatible = "atmel,24c02"; /* actually it's a 24AA02E48 */
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reg = <0x50>;
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pagesize = <16>;
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read-only;
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vcc-supply = <®_vcc3v3>;
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#address-cells = <1>;
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#size-cells = <1>;
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eth0_macaddress: macaddress@fa {
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reg = <0xfa 0x06>;
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};
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};
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tusb320: typec@60 {
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compatible = "ti,tusb320";
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reg = <0x60>;
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interrupts-extended = <&pio 1 5 IRQ_TYPE_LEVEL_LOW>; /* PB5 */
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};
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ds3232: rtc@68 {
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compatible = "dallas,ds3232";
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reg = <0x68>;
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};
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};
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/* Exposed as the Flash/SD Header on the board */
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&mmc0 {
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vmmc-supply = <®_vcc3v3>;
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bus-width = <4>;
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broken-cd;
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status = "okay";
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};
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/* Connected to the on-board ESP32 */
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&mmc1 {
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vmmc-supply = <®_vcc3v3>;
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bus-width = <4>;
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broken-cd;
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status = "okay";
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};
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&ohci {
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status = "okay";
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};
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/* Disable external 32k osc as it is broken on current revision */
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&osc32k {
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status = "disabled";
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};
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&pio {
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vcc-pb-supply = <®_vcc3v3>;
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vcc-pc-supply = <®_vcc3v3>;
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vcc-pe-supply = <®_vcc3v3>;
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vcc-pf-supply = <®_vcc3v3>;
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vcc-pg-supply = <®_vcc3v3>;
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gpio-line-names = "", "", "", "", // PA
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"CAN_nCS", "CAN_nINT", "USER_SW", "PB3", // PB
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"USB_ID", "USBC_nINT", "I2C0_SCL", "I2C0_SDA",
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"UART0_TX", "UART0_RX", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"SPI_MISO", "SPI_SCK", "FLASH_nCS", "SPI_MOSI", // PC
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "", // PD
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"Q12", "Q11", "Q10", "Q9", // PE
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"LED_SYS0", "I1", "Q1", "Q2",
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"I2", "I3", "Q3", "Q4",
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"I4", "I5", "Q5", "Q6",
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"I6", "I7", "Q7", "Q8",
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"I8", "UART1_TXD", "UART1_RXD", "ESP_nRST",
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"ESP_nBOOT", "", "", "",
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"", "", "", "",
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"SD_D1", "SD_D0", "SD_CLK", "SD_CMD", // PF
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"SD_D3", "SD_D2", "LED_SYS1", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"ESP_CLK", "ESP_CMD", "ESP_D0", "ESP_D1", // PG
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"ESP_D2", "ESP_D3", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "",
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"", "", "", "";
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};
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/* Disable external 32k osc as it is broken on current revision */
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&rtc {
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/delete-property/ clocks;
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};
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/* Exposed as a USB-C connector with USB-Serial converter */
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&uart0 {
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pinctrl-0 = <&uart0_pb_pins>;
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pinctrl-names = "default";
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status = "okay";
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};
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/* Connected to the Bootloader/Console of the ESP32 */
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&uart1 {
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pinctrl-0 = <&uart1_pe_pins>;
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pinctrl-names = "default";
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status = "okay";
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};
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&usb_otg {
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extcon = <&tusb320 0>;
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dr_mode = "otg";
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status = "okay";
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};
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&usbphy {
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usb0_id_det-gpios = <&pio 1 4 GPIO_ACTIVE_HIGH>; /* PB4 */
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status = "okay";
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};
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&spi0 {
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#address-cells = <1>;
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#size-cells = <0>;
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cs-gpios = <0>, <&pio 1 0 GPIO_ACTIVE_LOW>; /* PB0 */
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status = "okay";
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flash@0 {
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compatible = "jedec,spi-nor";
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reg = <0>;
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#address-cells = <1>;
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#size-cells = <1>;
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label = "firmware";
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spi-max-frequency = <40000000>;
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};
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can@1 {
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compatible = "microchip,mcp2518fd";
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reg = <1>;
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clocks = <&clk_can0>;
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interrupts-extended = <&pio 1 1 IRQ_TYPE_LEVEL_LOW>; /* PB1 */
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spi-max-frequency = <20000000>;
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vdd-supply = <®_vcc3v3>;
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xceiver-supply = <®_vcc3v3>;
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};
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};
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