[U-Boot] [PATCH 2/2] sunxi: Add support for gt90h-v4 tablets

Hans de Goede hdegoede at redhat.com
Fri Aug 14 16:55:37 CEST 2015 

Hi,

On 14-08-15 16:52, Hans de Goede wrote:
> The gt90h is a pcb found in generic 9" tablets with an A23 soc, 1G RAM
> and 8G nand, rtl8723as usb wifi, 1 micro usb port and 1 micro sd slot.
>
> The pmic setup on this board is somewhat special, dcdc2 MUST be set
> to 1.1V instead of the usual 1.2V otherwise the board is very unstable.
> aldo1 is used to power the micro sd slot, dldo1 is used for wifi.
>
> This commit adds a defconfig + dts (as submitted to the kernel) for
> the gt90h-v4 pcb.
>
> Signed-off-by: Hans de Goede <hdegoede at redhat.com>
> ---
>   arch/arm/dts/Makefile               |   1 +
>   arch/arm/dts/sun8i-a23-gt90h-v4.dts | 145 ++++++++++++++++++++++++++++++++++++
>   configs/gt90h_v4_defconfig          |  26 +++++++
>   3 files changed, 172 insertions(+)
>   create mode 100644 arch/arm/dts/sun8i-a23-gt90h-v4.dts
>   create mode 100644 configs/gt90h_v4_defconfig

Gah, and I've forgotten about updating MAINTAINERS again, fixed in
my personal tree.

Regards,

Hans


>
> diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
> index d9a2f5f..a9ad4e7 100644
> --- a/arch/arm/dts/Makefile
> +++ b/arch/arm/dts/Makefile
> @@ -133,6 +133,7 @@ dtb-$(CONFIG_MACH_SUN7I) += \
>   	sun7i-a20-yones-toptech-bd1078.dtb
>   dtb-$(CONFIG_MACH_SUN8I_A23) += \
>   	sun8i-a23-evb.dtb \
> +	sun8i-a23-gt90h-v4.dtb \
>   	sun8i-a23-ippo-q8h-v5.dtb \
>   	sun8i-a23-ippo-q8h-v1.2.dtb
>   dtb-$(CONFIG_MACH_SUN8I_A33) += \
> diff --git a/arch/arm/dts/sun8i-a23-gt90h-v4.dts b/arch/arm/dts/sun8i-a23-gt90h-v4.dts
> new file mode 100644
> index 0000000..1aeb06c
> --- /dev/null
> +++ b/arch/arm/dts/sun8i-a23-gt90h-v4.dts
> @@ -0,0 +1,145 @@
> +/*
> + * Copyright 2015 Hans de Goede <hdegoede at redhat.com>
> + *
> + * This file is dual-licensed: you can use it either under the terms
> + * of the GPL or the X11 license, at your option. Note that this dual
> + * licensing only applies to this file, and not this project as a
> + * whole.
> + *
> + *  a) This file is free software; you can redistribute it and/or
> + *     modify it under the terms of the GNU General Public License as
> + *     published by the Free Software Foundation; either version 2 of the
> + *     License, or (at your option) any later version.
> + *
> + *     This file is distributed in the hope that it will be useful,
> + *     but WITHOUT ANY WARRANTY; without even the implied warranty of
> + *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + *     GNU General Public License for more details.
> + *
> + * Or, alternatively,
> + *
> + *  b) Permission is hereby granted, free of charge, to any person
> + *     obtaining a copy of this software and associated documentation
> + *     files (the "Software"), to deal in the Software without
> + *     restriction, including without limitation the rights to use,
> + *     copy, modify, merge, publish, distribute, sublicense, and/or
> + *     sell copies of the Software, and to permit persons to whom the
> + *     Software is furnished to do so, subject to the following
> + *     conditions:
> + *
> + *     The above copyright notice and this permission notice shall be
> + *     included in all copies or substantial portions of the Software.
> + *
> + *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> + *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
> + *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> + *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
> + *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
> + *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> + *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + *     OTHER DEALINGS IN THE SOFTWARE.
> + */
> +
> +/dts-v1/;
> +#include "sun8i-a23.dtsi"
> +#include "sunxi-common-regulators.dtsi"
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/pinctrl/sun4i-a10.h>
> +
> +/ {
> +	model = "Allwinner GT90H Quad Core Tablet (v4)";
> +	compatible = "allwinner,gt90h-v4", "allwinner,sun8i-a33";
> +
> +	aliases {
> +		serial0 = &r_uart;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +};
> +
> +&ehci0 {
> +	status = "okay";
> +};
> +
> +&i2c0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c0_pins_a>;
> +	status = "okay";
> +};
> +
> +&i2c1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c1_pins_a>;
> +	status = "okay";
> +};
> +
> +&lradc {
> +	vref-supply = <&reg_vcc3v0>;
> +	status = "okay";
> +
> +	button at 200 {
> +		label = "Volume Up";
> +		linux,code = <KEY_VOLUMEUP>;
> +		channel = <0>;
> +		voltage = <200000>;
> +	};
> +
> +	button at 400 {
> +		label = "Volume Down";
> +		linux,code = <KEY_VOLUMEDOWN>;
> +		channel = <0>;
> +		voltage = <400000>;
> +	};
> +
> +	button at 600 {
> +		label = "Back";
> +		linux,code = <KEY_BACK>;
> +		channel = <0>;
> +		voltage = <600000>;
> +	};
> +};
> +
> +&mmc0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_gt90h>;
> +	/* FIXME this really is aldo1, correct once we've pmic support */
> +	vmmc-supply = <&reg_vcc3v0>;
> +	bus-width = <4>;
> +	cd-gpios = <&pio 1 4 GPIO_ACTIVE_HIGH>; /* PB4 */
> +	cd-inverted;
> +	status = "okay";
> +};
> +
> +&pio {
> +	mmc0_cd_pin_gt90h: mmc0_cd_pin at 0 {
> +		allwinner,pins = "PB4";
> +		allwinner,function = "gpio_in";
> +		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
> +		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
> +	};
> +};
> +
> +&r_uart {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&r_uart_pins_a>;
> +	status = "okay";
> +};
> +
> +/*
> + * FIXME for now we only support host mode and rely on u-boot to have
> + * turned on Vbus which is controlled by the axp223 pmic on the board.
> + *
> + * Once we have axp223 support we should switch to fully supporting otg.
> + */
> +&usb_otg {
> +	dr_mode = "host";
> +	status = "okay";
> +};
> +
> +&usbphy {
> +	status = "okay";
> +};
> diff --git a/configs/gt90h_v4_defconfig b/configs/gt90h_v4_defconfig
> new file mode 100644
> index 0000000..3b72dc2
> --- /dev/null
> +++ b/configs/gt90h_v4_defconfig
> @@ -0,0 +1,26 @@
> +CONFIG_ARM=y
> +CONFIG_ARCH_SUNXI=y
> +CONFIG_MACH_SUN8I_A23=y
> +CONFIG_DRAM_CLK=480
> +CONFIG_DRAM_ZQ=32767
> +CONFIG_MMC0_CD_PIN="PB4"
> +CONFIG_USB0_VBUS_PIN="AXP0-VBUS-ENABLE"
> +CONFIG_USB0_VBUS_DET="AXP0-VBUS-DETECT"
> +CONFIG_USB0_ID_DET="PH8"
> +CONFIG_AXP_GPIO=y
> +CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:18,pclk_khz:55000,le:159,ri:160,up:22,lo:12,hs:1,vs:1,sync:3,vmode:0"
> +CONFIG_VIDEO_LCD_DCLK_PHASE=0
> +CONFIG_VIDEO_LCD_POWER="PH7"
> +CONFIG_VIDEO_LCD_BL_EN="PH6"
> +CONFIG_VIDEO_LCD_BL_PWM="PH0"
> +CONFIG_USB_MUSB_HOST=y
> +CONFIG_DEFAULT_DEVICE_TREE="sun8i-a23-gt90h-v4"
> +# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
> +CONFIG_SPL=y
> +CONFIG_SYS_EXTRA_OPTIONS="CONS_INDEX=5"
> +# CONFIG_CMD_IMLS is not set
> +# CONFIG_CMD_FLASH is not set
> +# CONFIG_CMD_FPGA is not set
> +CONFIG_AXP221_DCDC2_VOLT=1100
> +CONFIG_AXP221_DLDO1_VOLT=3300
> +CONFIG_AXP221_ALDO1_VOLT=3000
>

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