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    panel@0 {
            compatible = "sitronix,st7789v";
            reg = <1>;
            reset-gpios = <&pio 2 4 GPIO_ACTIVE_HIGH>;//PC4
            dc-gpios = <&pio 2 7 GPIO_ACTIVE_LOW>;//PC7
            /*backlight = <&pwm_bl>;*/
            led-gpios = <&pio 7 0 GPIO_ACTIVE_LOW>;//PH0
            spi-max-frequency = <50000000>;
            spi-cpol;
            spi-cpha;
            buswidth = <8>;
            rotate = <270>;
            bgr;
            fps = <10>;
            debug = <1>;
    };

CONFIG_SND_SIMPLE_CARD=y

CONFIG_SND_SUN8I_CODEC=y
CONFIG_SND_SUN8I_CODEC_ANALOG=y

&sound {
	/* Board level jack widgets */
	simple-audio-card,widgets = "Microphone", "Microphone Jack",
				    "Headphone", "Headphone Jack";
	/* Board level routing. First 2 routes copied from SoC level */
	simple-audio-card,routing =
		"Left DAC", "AIF1 Slot 0 Left",
		"Right DAC", "AIF1 Slot 0 Right",
		"HP", "HPCOM",
		"Headphone Jack", "HP",
		"MIC1", "Microphone Jack",
		"Microphone Jack", "MBIAS";
	status = "okay";
};

&codec {
	status = "okay";
};

#
# Allwinner SoC Audio support
#
CONFIG_SND_SUN4I_CODEC=y
CONFIG_SND_SUN8I_CODEC=y
CONFIG_SND_SUN8I_CODEC_ANALOG=y
CONFIG_SND_SUN4I_I2S=y
CONFIG_SND_SUN4I_SPDIF=y
CONFIG_SND_SUN8I_ADDA_PR_REGMAP=y
CONFIG_SND_SOC_XTFPGA_I2S=y
CONFIG_ZX_TDM=y
CONFIG_SND_SOC_I2C_AND_SPI=y

#########功放芯片控制PL11 11*32 + 11 = 363
echo 363 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio363/direction
#关闭功放
echo 0 > /sys/class/gpio/gpio363/value
#打开功放
echo 1 > /sys/class/gpio/gpio363/value

CONFIG_KEYBOARD_GPIO_POLLED=m

/dts-v1/;
#include "sun8i-a33.dtsi"
#include "sunxi-common-regulators.dtsi"

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/pwm/pwm.h>

/ {
        model = "SmallWit X3 Card Taurus";
        compatible = "smallwit,x3", "allwinner,sun8i-a33";

        aliases {
                serial0 = &uart0;
        };

        chosen {
                stdout-path = "serial0:115200n8";
        };

....

       gpio_keys {
               compatible = "gpio-keys-polled";
               pinctrl-names = "default";
/*               pinctrl-0 = <&key_pins>;*/
               #address-cells = <1>;
               #size-cells = <0>;
               poll-interval = <20>;



               button@0 {
                        label = "GPIO Key Up";
                        linux,code = <KEY_UP>;
                        gpios = <&pio 7 1 GPIO_ACTIVE_LOW>; /* PH1 */
               };
               button@1 {
                        label = "GPIO Key Enter";
                        linux,code = <KEY_ENTER>;
                        gpios = <&pio 7 8 GPIO_ACTIVE_LOW>; /* PH8 */
               };

               button@2 {
                        label = "GPIO Key Down";
                        linux = <KEY_DOWN>;
                        gpios = <&pio 7 7 GPIO_ACTIVE_LOW>; /* PH7 */
               };

       };

# i2cdetect -y 1
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- 68 -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

&i2c1 {
        status = "okay";

        mpu6050: mpu6050@68 {
                compatible = "invensense,mpu6050";
                reg = <0x68>;
                interrupt-parent = <&pio>;
                interrupts = <1 7 IRQ_TYPE_EDGE_FALLING>; /* (PB7) */
        };

};

# date;dd if=/dev/zero of=/dev/mmcblk2 bs=1M count=8000;date;
Thu Jan  1 00:05:08 UTC 1970
[  388.168707] random: crng init done
dd: error writing '/dev/mmcblk2': No space left on device
7457+0 records in
7456+0 records out
Thu Jan  1 00:07:22 UTC 1970

# date;dd of=/dev/null if=/dev/mmcblk2 bs=1M count=7456;date;
Thu Jan  1 00:12:11 UTC 1970
7456+0 records in
7456+0 records out
Thu Jan  1 00:13:49 UTC 1970