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https://github.com/brain-hackers/u-boot-brain
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![Stefan Mavrodiev](/assets/img/avatar_default.png)
This is new System-On-Module platform with universal dimm socket for easy insertation. The EVB board is designed to be universal with future modules. Base features of A20-SOM204 board includes: * 1GB DDR3 RAM * AXP209 PMU * KSZ9031 Gigabit PHY * AT24C16 EEPROM * Status LED * LCD connector * GPIO connector There will be variants with the following options: * Second LAN8710A Megabit PHY * 16MB SPI Flash memory * eMMC card * ATECC508 crypto device The EVB board has: * Debug UART * MicroSD card connector * USB-OTG connector * Two USB host * RTL8723BS WiFi/BT combo * IrDA transceiver/receiver * HDMI connector * VGA connector * Megabit ethernet transceiver * Gigabit ethernet transceiver * SATA connector * CAN driver * CSI camera * MIC and HP connectors * PCIe x4 connector * USB3 connector * Two UEXT connectors * Two user LEDs Some of the features are multiplexed and cannot be used the same time: CAN and Megabit PHY. Others are not usable with A20 SoC: PCIe and USB3. This patch adds defconfig and dts files for this board. The dts is same with mainline kernel, except some nodes are removed to make file compatible with existing dtsi file. Signed-off-by: Stefan Mavrodiev <stefan@olimex.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
297 lines
4.9 KiB
Plaintext
297 lines
4.9 KiB
Plaintext
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Device Tree Source for A20-SOM204-EVB Board
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*
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* Copyright (C) 2018 Olimex Ltd.
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* Author: Stefan Mavrodiev <stefan@olimex.com>
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*/
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/dts-v1/;
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#include "sun7i-a20.dtsi"
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#include "sunxi-common-regulators.dtsi"
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/pwm/pwm.h>
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/ {
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model = "Olimex A20-SOM204-EVB";
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compatible = "olimex,a20-olimex-som204-evb", "allwinner,sun7i-a20";
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aliases {
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serial0 = &uart0;
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serial1 = &uart4;
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serial2 = &uart7;
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spi0 = &spi1;
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spi1 = &spi2;
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ethernet1 = &rtl8723bs;
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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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leds {
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compatible = "gpio-leds";
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stat {
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label = "a20-som204-evb:green:stat";
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gpios = <&pio 8 0 GPIO_ACTIVE_HIGH>;
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default-state = "on";
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};
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led1 {
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label = "a20-som204-evb:green:led1";
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gpios = <&pio 8 10 GPIO_ACTIVE_HIGH>;
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default-state = "on";
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};
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led2 {
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label = "a20-som204-evb:yellow:led2";
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gpios = <&pio 8 11 GPIO_ACTIVE_HIGH>;
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default-state = "on";
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};
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};
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rtl_pwrseq: rtl_pwrseq {
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compatible = "mmc-pwrseq-simple";
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reset-gpios = <&pio 6 9 GPIO_ACTIVE_LOW>;
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};
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};
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&ahci {
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target-supply = <®_ahci_5v>;
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status = "okay";
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};
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&codec {
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status = "okay";
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};
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&cpu0 {
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cpu-supply = <®_dcdc2>;
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};
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&ehci0 {
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status = "okay";
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};
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&ehci1 {
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status = "okay";
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};
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&gmac {
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pinctrl-names = "default";
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pinctrl-0 = <&gmac_pins_rgmii_a>;
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phy = <&phy3>;
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phy-mode = "rgmii";
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phy-supply = <®_vcc3v3>;
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snps,reset-gpio = <&pio 0 17 GPIO_ACTIVE_HIGH>;
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snps,reset-active-low;
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snps,reset-delays-us = <0 10000 1000000>;
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status = "okay";
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phy3: ethernet-phy@3 {
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reg = <3>;
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};
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};
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&i2c0 {
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pinctrl-names = "default";
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pinctrl-0 = <&i2c0_pins_a>;
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status = "okay";
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axp209: pmic@34 {
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reg = <0x34>;
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interrupt-parent = <&nmi_intc>;
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interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
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};
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};
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/* Exposed to UEXT1 */
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&i2c1 {
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pinctrl-names = "default";
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pinctrl-0 = <&i2c1_pins_a>;
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status = "okay";
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eeprom: eeprom@50 {
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compatible = "atmel,24c16";
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reg = <0x50>;
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pagesize = <16>;
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};
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};
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/* Exposed to UEXT2 */
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&i2c2 {
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pinctrl-names = "default";
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pinctrl-0 = <&i2c2_pins_a>;
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status = "okay";
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};
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&ir0 {
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pinctrl-names = "default";
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pinctrl-0 = <&ir0_rx_pins_a>;
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status = "okay";
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};
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&mmc0 {
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pinctrl-names = "default";
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pinctrl-0 = <&mmc0_pins_a>;
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vmmc-supply = <®_vcc3v3>;
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bus-width = <4>;
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cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>;
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cd-inverted;
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status = "okay";
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};
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&mmc3 {
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pinctrl-names = "default";
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pinctrl-0 = <&mmc3_pins_a>;
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vmmc-supply = <®_vcc3v3>;
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mmc-pwrseq = <&rtl_pwrseq>;
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bus-width = <4>;
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non-removable;
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status = "okay";
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rtl8723bs: sdio_wifi@1 {
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reg = <1>;
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};
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};
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&ohci0 {
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status = "okay";
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};
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&ohci1 {
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status = "okay";
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};
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&otg_sram {
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status = "okay";
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};
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&pio {
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bt_uart_pins: bt_uart_pins@0 {
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pins = "PG6", "PG7", "PG8";
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function = "uart3";
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};
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};
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#include "axp209.dtsi"
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®_ahci_5v {
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gpio = <&pio 2 3 GPIO_ACTIVE_HIGH>;
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status = "okay";
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};
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®_dcdc2 {
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regulator-always-on;
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regulator-min-microvolt = <1000000>;
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regulator-max-microvolt = <1400000>;
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regulator-name = "vdd-cpu";
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};
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®_dcdc3 {
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regulator-always-on;
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regulator-min-microvolt = <1000000>;
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regulator-max-microvolt = <1400000>;
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regulator-name = "vdd-int-dll";
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};
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®_ldo1 {
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regulator-always-on;
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regulator-min-microvolt = <1300000>;
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regulator-max-microvolt = <1300000>;
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regulator-name = "vdd-rtc";
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};
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®_ldo2 {
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regulator-always-on;
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regulator-min-microvolt = <3000000>;
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regulator-max-microvolt = <3000000>;
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regulator-name = "avcc";
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};
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®_ldo4 {
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-name = "vcc-pg";
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};
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®_usb0_vbus {
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gpio = <&pio 2 17 GPIO_ACTIVE_HIGH>;
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status = "okay";
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};
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®_usb1_vbus {
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status = "okay";
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};
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®_usb2_vbus {
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status = "okay";
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};
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/* Exposed to UEXT1 */
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&spi1 {
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pinctrl-names = "default";
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pinctrl-0 = <&spi1_pins_a>,
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<&spi1_cs0_pins_a>;
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status = "okay";
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};
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/* Exposed to UEXT2 */
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&spi2 {
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pinctrl-names = "default";
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pinctrl-0 = <&spi2_pins_a>,
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<&spi2_cs0_pins_a>;
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status = "okay";
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};
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&uart0 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart0_pins_a>;
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status = "okay";
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};
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/* Used for RTL8723BS bluetooth */
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&uart3 {
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pinctrl-names = "default";
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pinctrl-0 = <&bt_uart_pins>;
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status = "okay";
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};
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/* Exposed to UEXT1 */
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&uart4 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart4_pins_a>;
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status = "okay";
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};
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/* Exposed to UEXT2 */
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&uart7 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart7_pins_a>;
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status = "okay";
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};
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&usb_otg {
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dr_mode = "otg";
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status = "okay";
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};
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&usb_power_supply {
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status = "okay";
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};
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&usbphy {
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usb0_id_det-gpio = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* PH4 */
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usb0_vbus_det-gpio = <&pio 7 5 GPIO_ACTIVE_HIGH>; /* PH5 */
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usb0_vbus_power-supply = <&usb_power_supply>;
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usb0_vbus-supply = <®_usb0_vbus>;
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usb1_vbus-supply = <®_usb1_vbus>;
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usb2_vbus-supply = <®_usb2_vbus>;
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status = "okay";
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};
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