[U-Boot] [PATCH 2/3] sunxi: Add A20-SOM204-EVB board

Maxime Ripard maxime.ripard at free-electrons.com
Thu Feb 1 14:18:08 UTC 2018 

Hi,

On Thu, Feb 01, 2018 at 12:12:46PM +0200, Stefan Mavrodiev wrote:
> 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. Product page is located here [1].
> 
> 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.
> 
> [1] https://www.olimex.com/Products/SOM204/
> 
> Signed-off-by: Stefan Mavrodiev <stefan at olimex.com>
> ---
>  arch/arm/dts/Makefile                        |   1 +
>  arch/arm/dts/sun7i-a20-olimex-som204-evb.dts | 296 +++++++++++++++++++++++++++
>  configs/A20-Olimex-SOM204-EVB_defconfig      |  35 ++++
>  3 files changed, 332 insertions(+)
>  create mode 100644 arch/arm/dts/sun7i-a20-olimex-som204-evb.dts
>  create mode 100644 configs/A20-Olimex-SOM204-EVB_defconfig
> 
> diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
> index fe156fe..a358d19 100644
> --- a/arch/arm/dts/Makefile
> +++ b/arch/arm/dts/Makefile
> @@ -285,6 +285,7 @@ dtb-$(CONFIG_MACH_SUN7I) += \
>  	sun7i-a20-m5.dtb \
>  	sun7i-a20-mk808c.dtb \
>  	sun7i-a20-olimex-som-evb.dtb \
> +	sun7i-a20-olimex-som204-evb.dtb \
>  	sun7i-a20-olinuxino-lime.dtb \
>  	sun7i-a20-olinuxino-lime2.dtb \
>  	sun7i-a20-olinuxino-lime2-emmc.dtb \
> diff --git a/arch/arm/dts/sun7i-a20-olimex-som204-evb.dts b/arch/arm/dts/sun7i-a20-olimex-som204-evb.dts
> new file mode 100644
> index 0000000..c183920
> --- /dev/null
> +++ b/arch/arm/dts/sun7i-a20-olimex-som204-evb.dts
> @@ -0,0 +1,296 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Device Tree Source for A20-SOM204-EVB Board
> + *
> + * Copyright (C) 2018 Olimex Ltd.
> + *   Author: Stefan Mavrodiev <stefan at olimex.com>
> + */
> +
> +/dts-v1/;
> +#include "sun7i-a20.dtsi"
> +#include "sunxi-common-regulators.dtsi"
> +
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +#include <dt-bindings/pwm/pwm.h>
> +
> +/ {
> +	model = "Olimex A20-SOM204-EVB";
> +	compatible = "olimex,a20-olimex-som204-evb", "allwinner,sun7i-a20";
> +
> +	aliases {
> +		serial0 = &uart0;
> +		serial1 = &uart4;
> +		serial2 = &uart7;
> +		spi0 = &spi1;
> +		spi1 = &spi2;
> +		ethernet1 = &rtl8723bs;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		stat {
> +			label = "a20-som204-evb:green:stat";
> +			gpios = <&pio 8 0 GPIO_ACTIVE_HIGH>;
> +			default-state = "on";
> +		};
> +
> +		led1 {
> +			label = "a20-som204-evb:green:led1";
> +			gpios = <&pio 8 10 GPIO_ACTIVE_HIGH>;
> +			default-state = "on";
> +		};
> +
> +		led2 {
> +			label = "a20-som204-evb:yellow:led2";
> +			gpios = <&pio 8 11 GPIO_ACTIVE_HIGH>;
> +			default-state = "on";
> +		};
> +	};
> +
> +	rtl_pwrseq: rtl_pwrseq {
> +		compatible = "mmc-pwrseq-simple";
> +		reset-gpios = <&pio 6 9 GPIO_ACTIVE_LOW>;
> +	};
> +};
> +
> +&ahci {
> +	target-supply = <&reg_ahci_5v>;
> +	status = "okay";
> +};
> +
> +&codec {
> +	status = "okay";
> +};
> +
> +&cpu0 {
> +	cpu-supply = <&reg_dcdc2>;
> +};
> +
> +&ehci0 {
> +	status = "okay";
> +};
> +
> +&ehci1 {
> +	status = "okay";
> +};
> +
> +&gmac {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&gmac_pins_rgmii_a>;
> +	phy = <&phy3>;
> +	phy-mode = "rgmii";
> +	phy-supply = <&reg_vcc3v3>;
> +
> +	snps,reset-gpio = <&pio 0 17 GPIO_ACTIVE_HIGH>;
> +	snps,reset-active-low;
> +	snps,reset-delays-us = <0 10000 1000000>;
> +	status = "okay";
> +
> +	phy3: ethernet-phy at 3 {
> +		reg = <3>;
> +	};
> +};
> +
> +&i2c0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c0_pins_a>;
> +	status = "okay";
> +
> +	axp209: pmic at 34 {
> +		reg = <0x34>;
> +		interrupt-parent = <&nmi_intc>;
> +		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
> +	};
> +};
> +
> +/* Exposed to UEXT1 */
> +&i2c1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c1_pins_a>;
> +	status = "okay";
> +
> +	eeprom: eeprom at 50 {
> +		compatible = "atmel,24c16";
> +		reg = <0x50>;
> +		pagesize = <16>;
> +	};
> +};
> +
> +/* Exposed to UEXT2 */
> +&i2c2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c2_pins_a>;
> +	status = "okay";
> +};
> +
> +&ir0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&ir0_rx_pins_a>;
> +	status = "okay";
> +};
> +
> +&mmc0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&mmc0_pins_a>;
> +	vmmc-supply = <&reg_vcc3v3>;
> +	bus-width = <4>;
> +	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>;
> +	cd-inverted;
> +	status = "okay";
> +};
> +
> +&mmc3 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&mmc3_pins_a>;
> +	vmmc-supply = <&reg_vcc3v3>;
> +	mmc-pwrseq = <&rtl_pwrseq>;
> +	bus-width = <4>;
> +	non-removable;
> +	status = "okay";
> +
> +	rtl8723bs: sdio_wifi at 1 {
> +		reg = <1>;
> +	};
> +};
> +
> +&ohci0 {
> +	status = "okay";
> +};
> +
> +&ohci1 {
> +	status = "okay";
> +};
> +
> +&otg_sram {
> +	status = "okay";
> +};
> +
> +&pio {
> +	bt_uart_pins: bt_uart_pins at 0 {
> +		pins = "PG6", "PG7", "PG8";
> +		function = "uart3";
> +	};
> +};
> +
> +#include "axp209.dtsi"
> +
> +&reg_ahci_5v {
> +	gpio = <&pio 2 3 GPIO_ACTIVE_HIGH>;
> +	status = "okay";
> +};
> +
> +&reg_dcdc2 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <1000000>;
> +	regulator-max-microvolt = <1400000>;
> +	regulator-name = "vdd-cpu";
> +};
> +
> +&reg_dcdc3 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <1000000>;
> +	regulator-max-microvolt = <1400000>;
> +	regulator-name = "vdd-int-dll";
> +};
> +
> +&reg_ldo1 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <1300000>;
> +	regulator-max-microvolt = <1300000>;
> +	regulator-name = "vdd-rtc";
> +};
> +
> +&reg_ldo2 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <3000000>;
> +	regulator-max-microvolt = <3000000>;
> +	regulator-name = "avcc";
> +};
> +
> +&reg_ldo4 {
> +	regulator-min-microvolt = <3300000>;
> +	regulator-max-microvolt = <3300000>;
> +	regulator-name = "vcc-pg";
> +};
> +
> +&reg_usb0_vbus {
> +	gpio = <&pio 2 17 GPIO_ACTIVE_HIGH>;
> +	status = "okay";
> +};
> +
> +&reg_usb1_vbus {
> +	status = "okay";
> +};
> +
> +&reg_usb2_vbus {
> +	status = "okay";
> +};
> +
> +/* Exposed to UEXT1 */
> +&spi1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&spi1_pins_a>,
> +		    <&spi1_cs0_pins_a>;
> +	status = "okay";
> +};
> +
> +/* Exposed to UEXT2 */
> +&spi2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&spi2_pins_a>,
> +		    <&spi2_cs0_pins_a>;
> +	status = "okay";
> +};
> +
> +&uart0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart0_pins_a>;
> +	status = "okay";
> +};
> +
> +/* Used for RTL8723BS bluetooth */
> +&uart3 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&bt_uart_pins>;
> +	status = "okay";
> +};
> +
> +/* Exposed to UEXT1 */
> +&uart4 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart4_pins_a>;
> +	status = "okay";
> +};
> +
> +/* Exposed to UEXT2 */
> +&uart7 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart7_pins_a>;
> +	status = "okay";
> +};
> +
> +&usb_otg {
> +	dr_mode = "otg";
> +	status = "okay";
> +};
> +
> +&usb_power_supply {
> +	status = "okay";
> +};
> +
> +&usbphy {
> +	usb0_id_det-gpio = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* PH4 */
> +	usb0_vbus_det-gpio = <&pio 7 5 GPIO_ACTIVE_HIGH>; /* PH5 */
> +	usb0_vbus_power-supply = <&usb_power_supply>;
> +	usb0_vbus-supply = <&reg_usb0_vbus>;
> +	usb1_vbus-supply = <&reg_usb1_vbus>;
> +	usb2_vbus-supply = <&reg_usb2_vbus>;
> +	status = "okay";
> +};
> diff --git a/configs/A20-Olimex-SOM204-EVB_defconfig b/configs/A20-Olimex-SOM204-EVB_defconfig
> new file mode 100644
> index 0000000..3acd5c5
> --- /dev/null
> +++ b/configs/A20-Olimex-SOM204-EVB_defconfig
> @@ -0,0 +1,35 @@
> +CONFIG_ARM=y
> +CONFIG_ARCH_SUNXI=y
> +CONFIG_MACH_SUN7I=y
> +CONFIG_DRAM_CLK=384
> +CONFIG_MMC0_CD_PIN="PH1"
> +CONFIG_USB0_VBUS_PIN="PC17"
> +CONFIG_USB0_VBUS_DET="PH5"
> +CONFIG_I2C1_ENABLE=y
> +CONFIG_SATAPWR="PC3"
> +CONFIG_GMAC_TX_DELAY=4
> +CONFIG_DEFAULT_DEVICE_TREE="sun7i-a20-olimex-som204-evb"
> +CONFIG_AHCI=y
> +# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
> +CONFIG_SPL=y
> +CONFIG_SPL_I2C_SUPPORT=y
> +CONFIG_CMD_DFU=y

This is something that shouldn't be set on the defconfig, but should
instead come from the user if that's needed

> +# CONFIG_CMD_FLASH is not set
> +# CONFIG_CMD_FPGA is not set
> +CONFIG_CMD_USB_MASS_STORAGE=y

Ditto.

> +# CONFIG_SPL_DOS_PARTITION is not set
> +# CONFIG_SPL_ISO_PARTITION is not set
> +# CONFIG_SPL_PARTITION_UUIDS is not set
> +CONFIG_DFU_RAM=y

Ditto.

Looks good otherwise, thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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