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    SteelenLV 4

    @Steelen

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    Steelen 发布的最佳帖子

    • T113-S3 RTS时序问题

      用T113-S3的串口1，2，3作为RS485接口
      用串口的RTS引脚作为RS485收发控制
      但是发现数据发送完成了，RTS依然有效，持续持间差不多30ms（9600波特率）
      把波特率调高，改成115200，数据发送完成了，RTS依然有效，持续持间差不多30ms，这个明显RTS持续时间太长了，如何解决？或者问题可能在哪里？
      用 stty -F /dev/ttyS1 crtscts 使能RTS控制
      echo 3333333 > /dev/ttyS1
      用linux命令测试的
      445f150b-5726-490f-8c8e-9c349be4630c-image.png
      图中绿色的TXD信号
      黄色的是RTS信号
      不必纠结RTS高低电平有效问题，我们的485电路设计的DE/RE引脚接有有反相器反向的

      发布在 Linux
      S
      Steelen

    Steelen 发布的最新帖子

    • T113-S3 LONGAN SDC2接XR829 内核无法启动

      非常奇怪的现象
      T113-S3 SDC0 接EMMC
      SDC2 接 XR829
      在board.dts中一旦使能 （okay）SDC2，内核就无法启动了，disabled可以正常启动
      启动的时候SDIO CLK引脚会有一个短暂的时钟信号，CMD引脚也有短暂的时钟信号，然后内核就挂了

      M/TC: OP-TEE version: 53fe17e2-dirty (gcc version 5.3.1 20160412 (Linaro GCC 5.3
-2016.05)) #6 Fri Feb 18 08:54:51 UTC 2022 arm
** 60 printk messages dropped **
[    0.006685] 001: devtmpfs: initialized
** 2 printk messages dropped **
[    0.025421] 000: futex hash table entries: 512 (order: 3, 32768 bytes, linear
)
[    0.026213] 000: pinctrl core: initialized pinctrl subsystem
[    0.028186] 000: NET: Registered protocol family 16
[    0.032121] 000: DMA: preallocated 256 KiB pool for atomic coherent allocatio
ns
** 9 printk messages dropped **
[    0.142015] 000: videodev: Linux video capture interface: v2.00
** 16 printk messages dropped **
[    0.188719] 000: sunxi_spi_resource_get()2177 - [spi1] SPI MASTER MODE
** 16 printk messages dropped **
[    0.243086] 000: [DISP]disp_module_init finish
** 1 printk message dropped **
[    0.245782] 000: sun8iw20-pinctrl pio: pio supply vcc-pg not found, using dum
my regulator
[    0.246181] 000: uart uart1: get regulator failed
[    0.246202] 000: uart uart1: uart1 supply uart not found, using dummy regulat
or
[    0.246742] 000: uart1: ttyS1 at MMIO 0x2500400 (irq = 34, base_baud = 150000
0) is a SUNXI
** 9 printk messages dropped **
[    0.252255] 000: uart uart5: get regulator failed
** 1 printk message dropped **
[    0.252837] 000: uart5: ttyS5 at MMIO 0x2501400 (irq = 38, base_baud = 150000
0) is a SUNXI
[    0.252865] 000: sw_console_setup()1808 - console setup baud 115200 parity n
bits 8, flow n
[    0.252931] 000: printk: console [ttyS5] enabled
[    0.254287] 000: misc dump reg init
[    0.258222] 001: libphy: Fixed MDIO Bus: probed
** 5 printk messages dropped **
[    0.259262] 001: usbcore: registered new interface driver cdc_ncm
[    0

      我觉得是DTS文件有关SDC2的部分配置有问题，但是找不出问题在哪里

      /*
 * Allwinner Technology CO., Ltd.
 */

/dts-v1/;

 /* optee used 7MB: SHM 2M: OS: 1M: TA:4M*/
/memreserve/ 0x41900000 0x00100000;
/* DSP used 1MB */
/* /memreserve/ 0x42000000 0x00100000; */

#include "sun8iw20p1.dtsi"

/{
	model = "sun8iw20";
	compatible = "allwinner,r528", "arm,sun8iw20p1";

	reg_vdd_cpu: vdd-cpu {
		compatible = "pwm-regulator";
		pwms = <&pwm 3 5000 0>;
		regulator-name = "vdd_cpu";
		regulator-min-microvolt = <810000>;
		regulator-max-microvolt = <1160000>;
		regulator-settling-time-us = <4000>;
		regulator-always-on;
		regulator-boot-on;
		status = "okay";
	};

	reg_usb1_vbus: usb1-vbus {
		compatible = "regulator-fixed";
		regulator-name = "usb1-vbus";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		regulator-enable-ramp-delay = <1000>;
		gpio = <&pio PD 19 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};

	can0: can@0x0 {
		#address-cells = <1>;
		#size-cells = <0>;
		compatible = "allwinner,sun8i-can";
		pinctrl-0 = <&can0_pins_a>;
		pinctrl-1 = <&can0_pins_b>;
		pinctrl-names = "default", "sleep";
		device_type = "can0";
		id = <0>;
		status = "okay";
	};

	can1: can@0x1 {
		#address-cells = <1>;
		#size-cells = <0>;
		compatible = "allwinner,sun8i-can";
		pinctrl-0 = <&can1_pins_a>;
		pinctrl-1 = <&can1_pins_b>;
		pinctrl-names = "default", "sleep";
		device_type = "can1";
		id = <1>;
		status = "okay";
	};
};

&cpu0 {
	cpu-supply = <&reg_vdd_cpu>;
};

&pio {
	sdc0_pins_a: sdc0@0 {
		allwinner,pins = "PF0", "PF1", "PF2",
				 "PF3", "PF4", "PF5";
		allwinner,function = "sdc0";
		allwinner,muxsel = <2>;
		allwinner,drive = <3>;
		allwinner,pull = <1>;
		pins = "PF0", "PF1", "PF2",
		       "PF3", "PF4", "PF5";
		function = "sdc0";
		drive-strength = <30>;
		bias-pull-up;
		power-source = <3300>;
	};


	sdc0_pins_b: sdc0@1 {
		pins = "PF0", "PF1", "PF2",
		       "PF3", "PF4", "PF5";
		function = "sdc0";
		drive-strength = <30>;
		bias-pull-up;
		power-source = <1800>;
	};

	sdc0_pins_c: sdc0@2 {
		pins = "PF0", "PF1", "PF2",
			"PF3", "PF4", "PF5";
		function = "gpio_in";
	};

	/* TODO: add jtag pin */
	sdc0_pins_d: sdc0@3 {
		pins = "PF2", "PF4";
		function = "uart0";
		drive-strength = <10>;
		bias-pull-up;
	};

	sdc0_pins_e: sdc0@4 {
		pins = "PF0", "PF1", "PF3",
			"PF5";
		function = "jtag";
		drive-strength = <10>;
		bias-pull-up;
	};


	sdc1_pins_a: sdc1@0 {
		pins = "PG0", "PG1", "PG2",
		       "PG3", "PG4", "PG5";
		function = "sdc1";
		drive-strength = <30>;
		bias-pull-up;
	};

	sdc1_pins_b: sdc1@1 {
		pins = "PG0", "PG1", "PG2",
		       "PG3", "PG4", "PG5";
			function = "sdc1";
	};

	sdc2_pins_a: sdc2@0 {
		allwinner,pins = "PC2", "PC3", "PC4",
				 "PC5", "PC6", "PC7";
		allwinner,function = "sdc2";
		allwinner,muxsel = <3>;
		allwinner,drive = <3>;
		allwinner,pull = <1>;
		pins = "PC2", "PC3", "PC4",
			"PC5", "PC6", "PC7";
		function = "sdc2";
		drive-strength = <30>;
		bias-pull-up;
	};

	sdc2_pins_b: sdc2@1 {
		pins = "PC2", "PC3", "PC4",
		       "PC5", "PC6", "PC7";
		function = "gpio_in";
	};

	wlan_pins_a:wlan@0 {
		pins = "PG11";
		function = "clk_fanout1";
	};

/*
	lvds0_pins_a: lvds0@0 {
		allwinner,pins  = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PD8", "PD9";
		allwinner,pname = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PD8", "PD9";
		allwinner,function = "lvds0";
		allwinner,muxsel = <3>;
		allwinner,drive = <3>;
		allwinner,pull = <0>;
	};

	lvds0_pins_b: lvds0@1 {
		allwinner,pins  = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PD8", "PD9";
		allwinner,pname = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PD8", "PD9";
		allwinner,function = "io_disabled";
		allwinner,muxsel = <7>;
		allwinner,drive = <3>;
		allwinner,pull = <0>;
	};
*/

	uart0_pins_a: uart0_pins@0 {  /* For EVB1 board */
		pins = "PF2", "PF4";
		function = "uart0";
		drive-strength = <10>;
		bias-pull-up;
	};

	uart0_pins_b: uart0_pins@1 {  /* For EVB1 board */
		pins = "PF2", "PF4";
		function = "gpio_in";
	};

	uart1_pins_a: uart1_pins@0 {  /* For EVB1 board */
		pins = "PG6", "PG7", "PG8", "PG9";
		function = "uart1";
		drive-strength = <10>;
		bias-pull-up;
	};

	uart1_pins_b: uart1_pins {  /* For EVB1 board */
		pins = "PG6", "PG7", "PG8", "PG9";
		function = "gpio_in";
	};

    uart2_pins_a: uart2_pins@0 {  /* For EVB1 board */
                pins = "PD1", "PD2", "PD3", "PD4";
                function = "uart2";
                drive-strength = <10>;
                bias-pull-up;
        };

    uart2_pins_b: uart2_pins@1 {  /* For EVB1 board */
                pins = "PD1", "PD2", "PD3", "PD4";
                function = "gpio_in";
        };

	uart3_pins_a: uart3_pins@0 {  /* For t113_evb */
		pins = "PG0", "PG1", "PG2", "PG3";
		function = "uart3";
		drive-strength = <10>;
		bias-pull-up;
	};

	uart3_pins_b: uart3_pins@1 {  /* For t113_evb */
		pins = "PG0", "PG1", "PG2", "PG3";
		function = "gpio_in";
	};

	uart4_pins_a: uart4_pins@0 {  /* For t113_evb */
		pins = "PD7", "PD8";
		function = "uart4";
		drive-strength = <10>;
		bias-pull-up;
	};

	uart4_pins_b: uart4_pins@1 {  /* For t113_evb */
		pins = "PD7", "PD8";
		function = "gpio_in";
	};

	uart5_pins_a: uart5_pins@0 {  /* For t113_evb */
		pins = "PD5", "PD6";
		function = "uart5";
		drive-strength = <10>;
		bias-pull-up;
	};

	uart5_pins_b: uart5_pins@1 {  /* For t113_evb */
		pins = "PD5", "PD6";
		function = "gpio_in";
	};

	twi0_pins_a: twi0@0 {
		pins = "PB2", "PB3";
		function = "twi0";
		drive-strength = <10>;
	};

	twi0_pins_b: twi0@1 {
		pins = "PB2", "PB3";
		function = "gpio_in";
	};

	twi1_pins_a: twi1@0 {
		pins = "PE14", "PE15";
		function = "twi1";
		drive-strength = <10>;
	};

	twi1_pins_b: twi1@1 {
		pins = "PE14", "PE15";
		function = "gpio_in";
	};

	twi2_pins_a: twi2@0 {
		pins = "PG14", "PG15";
		function = "twi2";
		drive-strength = <10>;
	};

	twi2_pins_b: twi2@1 {
		pins = "PG14", "PG15";
		function = "gpio_in";
	};

	twi3_pins_a: twi3@0 {
		/* pins = "PE16", "PE17"; */
		/* pins = "PG10", "PG11"; */
		pins = "PB6", "PB7";
		function = "twi3";
		drive-strength = <10>;
	};

	twi3_pins_b: twi3@1 {
		/* pins = "PE16", "PE17"; */
		/* pins = "PG10", "PG11"; */
		pins = "PB6", "PB7";
		function = "gpio_in";
	};

	s_cir0_pins_a: s_cir0@0 {
		pins = "PB1";
		function = "ir";
		drive-strength = <10>;
		bias-pull-up;
	};

	s_cir0_pins_b: s_cir0@1 {
		pins = "PB1";
		function = "gpio_in";
	};

	ir1_pins_a: ir1@0 {
		pins = "PB0";
		function = "ir";
		drive-strength = <10>;
		bias-pull-up;
	};

	ir1_pins_b: ir1@1 {
		pins = "PB0";
		function = "gpio_in";
	};

	dmic_pins_a: dmic@0 {
		/* DMIC_PIN: CLK, DATA0, DATA1, DATA2, DATA3*/
		pins = "PB12", "PB11", "PB10", "PE14", "PB8";
		function = "dmic";
		drive-strength = <20>;
		bias-disable;
	};

	dmic_pins_b: dmic@1 {
		pins = "PB12", "PB11", "PB10", "PE14", "PB8";
		allwinner,function = "io_disabled";
		drive-strength = <20>;
		bias-disable;
	};

	daudio0_pins_a: daudio0@0 {
		pins = "PB29", "PB23", "PB24",
		       "PB25", "PB26", "PB27", "PB28",
		       "PB22";
		function = "i2s0";
		drive-strength = <20>;
		bias-disable;
	};

	daudio0_pins_b: daudio0_sleep@0 {
		pins = "PB29", "PB23", "PB24",
		       "PB25", "PB26", "PB27", "PB28",
		       "PB22";
		function = "io_disabled";
		drive-strength = <20>;
		bias-disable;
	};

	daudio1_pins_a: daudio1@0 {
		/* MCLK, LRCK, BCLK */
		pins = "PG12", "PG13";
		function = "i2s1";
		drive-strength = <20>;
		bias-disable;
	};

	daudio1_pins_b: daudio1@1 {
		/* DIN0 */
		pins = "PG14";
		function = "i2s1_din";
		drive-strength = <20>;
		bias-disable;
	};

	daudio1_pins_c: daudio1@2 {
		/* DOUT0 */
		pins = "PG15";
		function = "i2s1_dout";
		drive-strength = <20>;
		bias-disable;
	};

	daudio1_pins_d: daudio1_sleep@0 {
		pins = "PG12", "PG13", "PG14", "PG15";
		function = "io_disabled";
		drive-strength = <20>;
		bias-disable;
	};

	daudio2_pins_a: daudio2@0 {
		/* I2S_PIN: MCLK, BCLK, LRCK */
		pins = "PB7", "PB6", "PB5";
		function = "i2s2";
		drive-strength = <20>;
		bias-disable;
	};

	daudio2_pins_b: daudio2@1 {
		/* I2S_PIN: DIN0 */
		pins = "PB3";
		function = "i2s2_din";
		drive-strength = <20>;
		bias-disable;
	};

	daudio2_pins_c: daudio2@2 {
		/* I2S_PIN: DOUT0 */
		pins = "PB4";
		function = "i2s2_dout";
		drive-strength = <20>;
		bias-disable;
	};

	daudio2_pins_d: daudio2_sleep@0 {
		pins = "PB7", "PB6", "PB5", "PB4", "PB3";
		function = "io_disabled";
		drive-strength = <20>;
		bias-disable;
	};

	spdif_pins_a: spdif@0 {
		/* SPDIF_PIN: SPDIF_OUT */
		pins = "PG18";
		function = "spdif";
		drive-strength = <20>;
		bias-disable;
	};

	spdif_pins_b: spdif_sleep@0 {
		pins = "PG18";
		function = "io_disabled";
		drive-strength = <20>;
		bias-disable;
	};
	gmac0_pins_a: gmac@0 {
		allwinner,pins = "PE0", "PE1", "PE2", "PE3", "PE4",
				 "PE5", "PE6", "PE7","PE8", "PE9", "PE10";
		allwinner,function = "gmac0";
		allwinner,muxsel = <8>;
		allwinner,drive = <1>;
		allwinner,pull = <0>;
	};

	gmac0_pins_b: gmac@1 {
		allwinner,pins = "PE0", "PE1", "PE2", "PE3", "PE4",
				 "PE5", "PE6", "PE7","PE8", "PE9", "PE10";
		allwinner,function = "gpio_in";
		allwinner,muxsel = <0>;
		allwinner,drive = <1>;
		allwinner,pull = <0>;
	};
/*
	spi0_pins_a: spi0@0 {
		pins = "PC2", "PC4", "PC5","PC7", "PC6";  
		function = "spi0";
		drive-strength = <10>;
	};

	spi0_pins_b: spi0@1 {
		pins = "PC3";
		function = "spi0";
		drive-strength = <10>;
		bias-pull-up;    
	};

	spi0_pins_c: spi0@2 {
		pins = "PC2", "PC3", "PC4", "PC5","PC6", "PC7";
		function = "gpio_in";
		drive-strength = <10>;
	};
 */
	spi1_pins_a: spi1@0 {
		pins = "PD11", "PD12", "PD13";
		function = "spi1";
		drive-strength = <10>;
	};

/*
	spi1_pins_b: spi1@1 {
		pins = "PD10";
		function = "spi1";
		drive-strength = <10>;
		bias-pull-up;   // only CS should be pulled up
	};
*/

	spi1_pins_c: spi1@2 {
		allwinner,pins = /*"PD10",*/ "PD11", "PD12", "PD13";
		allwinner,function = "gpio_in";
		allwinner,muxsel = <0>;
		drive-strength = <10>;
	};

	pwm3_pin_a: pwm3@0 {
		pins = "PB0";
		function = "pwm3";
		drive-strength = <10>;
		bias-pull-up;
	};

	pwm3_pin_b: pwm3@1 {
		pins = "PB0";
		function = "gpio_in";
	};

	pwm7_pin_a: pwm7@0 {
		pins = "PD22";
		function = "pwm7";
		drive-strength = <10>;
		bias-pull-up;
	};

	pwm7_pin_b: pwm7@1 {
		pins = "PD22";
		function = "gpio_in";
	};

	can0_pins_a: can0@0 {
		pins = "PB2", "PB3";
		function = "can0";
		drive-strength = <10>;
	};

	can0_pins_b: can0@1 {
		pins = "PB2", "PB3";
		function = "gpio_in";
	};

	can1_pins_a: can1@0 {
		pins = "PB4", "PB5";
		function = "can1";
		drive-strength = <10>;
	};

	can1_pins_b: can1@1 {
		pins = "PB4", "PB5";
		function = "gpio_in";
	};

	ledc_pins_a: ledc@0 {
		pins = "PG13";
		function = "ledc";
		drive-strength = <10>;
	};

	ledc_pins_b: ledc@1 {
		pins = "PG13";
		function = "gpio_in";
	};
	rgb24_pins_a: rgb24@0 {
		allwinner,pins = "PB2", "PB3", "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", \
			"PB4", "PB5", "PD6", "PD7", "PD8", "PD9", "PD10", "PD11", \
			"PB6", "PB7", "PD12", "PD13", "PD14", "PD15", "PD16", "PD17", \
			"PD18", "PD19", "PD20", "PD21";
		allwinner,pname = "lcdd0", "lcdd1", "lcdd2", "lcdd3", "lcdd4", "lcdd5", "lcdd6", "lcdd7", \
			"lcdd8", "lcdd9", "lcdd10", "lcdd11", "lcdd12", "lcdd13", "lcdd14", "lcdd15", \
			"lcdd16", "lcdd17", "lcdd18", "lcdd19", "lcdd20", "lcdd21", "lcdd22", "lcdd23", \
			"lcdclk", "lcdde", "lcdhsync", "lcdvsync";
		allwinner,function = "lcd0";
		allwinner,muxsel = <2>;
		allwinner,drive = <3>;
		allwinner,pull = <0>;
	};
	rgb24_pins_b: rgb24@1 {
		allwinner,pins = "PB2", "PB3", "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", \
			"PB4", "PB5", "PD6", "PD7", "PD8", "PD9", "PD10", "PD11", \
			"PB6", "PB7", "PD12", "PD13", "PD14", "PD15", "PD16", "PD17", \
			"PD18", "PD19", "PD20", "PD21";
		allwinner,pname = "lcdd0", "lcdd1", "lcdd2", "lcdd3", "lcdd4", "lcdd5", "lcdd6", "lcdd7", \
			"lcdd8", "lcdd9", "lcdd10", "lcdd11", "lcdd12", "lcdd13", "lcdd14", "lcdd15", \
			"lcdd16", "lcdd17", "lcdd18", "lcdd19", "lcdd20", "lcdd21", "lcdd22", "lcdd23", \
			"lcdclk", "lcdde", "lcdhsync", "lcdvsync";
		allwinner,function = "io_disabled";
		allwinner,muxsel = <7>;
		allwinner,drive = <3>;
		allwinner,pull = <0>;
	};
/*
	dsi4lane_pins_a: dsi4lane@0 {
        allwinner,pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PD8", "PD9";
        allwinner,pname = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PD8", "PD9";
        allwinner,function = "dsi4lane";
        allwinner,muxsel = <4>;
        allwinner,drive = <3>;
        allwinner,pull = <0>;
	};

	dsi4lane_pins_b: dsi4lane@1 {
        allwinner,pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PD8", "PD9";
        allwinner,pname = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PD8", "PD9";
        allwinner,function = "dsi4lane_suspend";
        allwinner,muxsel = <7>;
        allwinner,drive = <1>;
        allwinner,pull = <0>;
	};
*/
};

&uart0 {
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&uart0_pins_a>;
	pinctrl-1 = <&uart0_pins_b>;
	status = "disabled";
};

&uart1 {
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&uart1_pins_a>;
	pinctrl-1 = <&uart1_pins_b>;
	status = "okay";
};

&uart2 {
        pinctrl-names = "default", "sleep";
        pinctrl-0 = <&uart2_pins_a>;
        pinctrl-1 = <&uart2_pins_b>;
        status = "okay";
};

&uart3 {
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&uart3_pins_a>;
	pinctrl-1 = <&uart3_pins_b>;
	status = "okay";
};

&uart4 {
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&uart4_pins_a>;
	pinctrl-1 = <&uart4_pins_b>;
	status = "okay";
};

&uart5 {
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&uart5_pins_a>;
	pinctrl-1 = <&uart5_pins_b>;
	status = "okay";
};

&sdc2 {
	non-removable;
	bus-width = <4>;
	mmc-hs200-3_3v;
 /* mmc-ddr-1_8v;     mmc-hs200-3_3v;  */
 /*	no-sdio;  */
    no-mmc;
	no-sd;
	ctl-spec-caps = <0x8>;
/*	cap-mmc-highspeed; */
/*	sunxi-power-save-mode;*/
    keep-power-in-suspend;
	ignore-pm-notify;
/*	sunxi-dis-signal-vol-sw;*/
/*	mmc-bootpart-noacc; */
	max-frequency = <50000000>;
	/*vmmc-supply = <&reg_dcdc1>;*/
	/*emmc io vol 3.3v*/
	/*vqmmc-supply = <&reg_aldo1>;*/
	/*emmc io vol 1.8v*/
	/*vqmmc-supply = <&reg_eldo1>;*/
	status = "okay";
};

&sdc0 {
	bus-width = <4>;
	/*cd-gpios = <&pio PF 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;*/
	non-removable;
	broken-cd;
	/*cd-inverted*/
	/*data3-detect;*/
	/*card-pwr-gpios = <&pio PH 14 1 1 2 0xffffffff>;*/
	/*cd-used-24M;*/
	cap-mmc-highspeed;
	/*sd-uhs-sdr50;*/
	/*sd-uhs-ddr50;*/
	/*sd-uhs-sdr104;*/
	no-sdio;
	no-sd;
	sunxi-power-save-mode;
	sunxi-dis-signal-vol-sw;
	mmc-bootpart-noacc;
	max-frequency = <50000000>;
	ctl-spec-caps = <0x308>;
	sdc_tm4_sm0_freq0 = <0>;
	sdc_tm4_sm0_freq1 = <0>;
	sdc_tm4_sm1_freq0 = <0x00000000>;
	sdc_tm4_sm1_freq1 = <0>;
	sdc_tm4_sm2_freq0 = <0x00000000>;
	sdc_tm4_sm2_freq1 = <0>;
	sdc_tm4_sm3_freq0 = <0x05000000>;
	sdc_tm4_sm3_freq1 = <0x00000005>;
	sdc_tm4_sm4_freq0 = <0x00050000>;
	sdc_tm4_sm4_freq1 = <0x00000004>;
	sdc_tm4_sm4_freq0_cmd = <0>;
	sdc_tm4_sm4_freq1_cmd = <0>;
	/delete-property/ cap-sd-highspeed;
	/delete-property/ cap-wait-while-busy;
	/delete-property/ no-mmc;
	/*vmmc-supply = <&reg_dcdc1>;*/
	/*vqmmc33sw-supply = <&reg_dcdc1>;*/
	/*vdmmc33sw-supply = <&reg_dcdc1>;*/
	/*vqmmc18sw-supply = <&reg_eldo1>;*/
	/*vdmmc18sw-supply = <&reg_eldo1>;*/
	status = "okay";
};

&sdc1 {
	bus-width = <4>;
	no-mmc;
	no-sd;
	cap-sd-highspeed;
	/*sd-uhs-sdr12*/
	/*sd-uhs-sdr25;*/
	/*sd-uhs-sdr50;*/
	/*sd-uhs-ddr50;*/
	/*sd-uhs-sdr104;*/
	/*sunxi-power-save-mode;*/
	/*sunxi-dis-signal-vol-sw;*/
	cap-sdio-irq;
	keep-power-in-suspend;
	ignore-pm-notify;
	max-frequency = <150000000>;
	ctl-spec-caps = <0x8>;
	status = "disabled";
};


&twi0 {
	clock-frequency = <400000>;
	pinctrl-0 = <&twi0_pins_a>;
	pinctrl-1 = <&twi0_pins_b>;
	pinctrl-names = "default", "sleep";
	twi_drv_used = <0>;
	dmas = <&dma 43>, <&dma 43>;
	dma-names = "tx", "rx";
	status = "disabled";
        ctp@14 {
                compatible = "allwinner,goodix";
                device_type = "ctp";
                reg = <0x14>;
                status = "disabled";
                ctp_name = "gt9xxnew_ts";
                ctp_twi_id = <0x2>;
                ctp_twi_addr = <0x14>;
                ctp_screen_max_x = <0x320>;
                ctp_screen_max_y = <0x1e0>;
                ctp_revert_x_flag = <0x0>;
                ctp_revert_y_flag = <0x0>;
                ctp_exchange_x_y_flag = <0x0>;
                ctp_int_port = <&pio PB 6 GPIO_ACTIVE_HIGH>;
                ctp_wakeup = <&pio PB 7 GPIO_ACTIVE_HIGH>;
                /*ctp-supply = <&reg_aldo2>;*/
                /*ctp_power_ldo = <&reg_aldo2>;*/
                /*ctp_power_ldo_vol = <3300>;*/
        };
};

&twi1 {
	clock-frequency = <400000>;
	pinctrl-0 = <&twi1_pins_a>;
	pinctrl-1 = <&twi1_pins_b>;
	pinctrl-names = "default", "sleep";
	status = "disabled";
};

&twi2 {
	clock-frequency = <400000>;
	pinctrl-0 = <&twi2_pins_a>;
	pinctrl-1 = <&twi2_pins_b>;
	pinctrl-names = "default", "sleep";
	twi_drv_used = <1>;
	dmas = <&dma 45>, <&dma 45>;
	dma-names = "tx", "rx";
	status = "okay";
	rtc@51 {
		compatible = "nxp,pcf8563";
		reg = <0x51>;
	};
};

&twi3 {
	clock-frequency = <400000>;
	pinctrl-0 = <&twi3_pins_a>;
	pinctrl-1 = <&twi3_pins_b>;
	pinctrl-names = "default", "sleep";
	status = "disabled";
	ac108: ac108@3B {
		#sound-dai-cells = <0>;
		compatible = "Allwinner,MicArray_0";
		device_type = "MicArray_0";
		reg = <0x3B>;
		regulator_used = <0x0>;
		power_voltage = <3300000>;
		regulator_name = "vcc-3v3";
		power_gpio_used = <0x0>;
		reset_gpio_used = <0x0>;
		twi_bus = <0x1>;
		pga_gain = <0x1F>;
		slot_width = <0x20>;
		lrck_period = <0x80>;
		ref_pga_used = <0x1>;
		ref_pga_gain = <0x10>;
		ref_channel = <0x3>;
		debug_mode = <0x0>;
		status = "disabled";
	};
};
/*    
&spi0 {
	clock-frequency = <10000000>;
	pinctrl-0 = <&spi0_pins_a &spi0_pins_b>;
	pinctrl-1 = <&spi0_pins_c>;
	pinctrl-names = "default", "sleep";
	 
	spi_slave_mode = <0>;
	spi0_cs_number = <1>;
    spi0_cs_bitmap = <1>;
	status = "disabled";
	 
};  
 */ 

&spi1 {
	clock-frequency = <100000000>;
	pinctrl-0 = <&spi1_pins_a /*&spi1_pins_b*/>;
	pinctrl-1 = <&spi1_pins_c>;
	pinctrl-names = "default", "sleep";
	spi_slave_mode = <0>;
	spi1_cs_number = <1>;
        spi1_cs_bitmap = <1>;
	status = "okay";

	spi_board1@0 {
		device_type = "spi_board1";
		compatible = "rohm,dh2228fv";
		spi-max-frequency = <16000000>;
		reg = <0x0>;
		spi-rx-bus-width = <0x4>;
		spi-tx-bus-width = <0x4>;
		status = "okay";
	};
};

&ledc {
	pinctrl-0 = <&ledc_pins_a>;
	pinctrl-1 = <&ledc_pins_b>;
	pinctrl-names = "default", "sleep";
	led_count = <48>;
	output_mode = "GRB";
	reset_ns = <84>;
	t1h_ns = <800>;
	t1l_ns = <450>;
	t0h_ns = <400>;
	t0l_ns = <850>;
	wait_time0_ns = <84>;
	wait_time1_ns = <84>;
	wait_data_time_ns = <600000>;
	status	= "okay";
};

&s_cir0 {
	pinctrl-names = "default";
	pinctrl-0 = <&s_cir0_pins_a>;
	status = "disabled";
};

&ir1 {
	pinctrl-names = "default";
	pinctrl-0 = <&ir1_pins_a>;
	status = "disabled";
};
...............
      发布在 Linux
      S
      Steelen
    • LAN9514问题

      在T113的USB1上挂了一个LAN9514芯片，以扩展4个USB口和1个网口
      但是发现一个非常恼火的问题，折腾了好久了，没有头绪

      sh-4.4# lsusb
      Bus 001 Device 001: ID 1d6b:0002
      Bus 001 Device 005: ID 0424:ec00
      Bus 001 Device 004: ID 0424:9514
      Bus 002 Device 001: ID 1d6b:0001

      能看到设备
      U盘插进USB扩展口，也能读到U盘

      但是就是没有网口
      问题可能在哪里呢？没有头绪啊

      CONFIG_USB_EHCI_HCD=y
      CONFIG_USB_EHCI_HCD_SUNXI=y
      CONFIG_USB_EHCI_HCD_PLATFORM=y

      CONFIG_USB_OHCI_HCD=y
      CONFIG_USB_OHCI_HCD_SUNXI=y
      CONFIG_USB_OHCI_HCD_PLATFORM=y

      CONFIG_USB_SUNXI_HCD=y
      CONFIG_USB_SUNXI_HCI=y
      #CONFIG_USB_SUNXI_EHCI0=y
      CONFIG_USB_SUNXI_EHCI1=y
      #CONFIG_USB_SUNXI_OHCI0=y
      CONFIG_USB_SUNXI_OHCI1=y

      。。。
      CONFIG_USB_NET_DRIVERS=y
      CONFIG_USB_USBNET=y

      CONFIG_USB_NET_CDCETHER=y
      CONFIG_USB_NET_CDC_EEM=y
      CONFIG_USB_NET_CDC_NCM=y

      CONFIG_USB_NET_CDC_MBIM=y

      CONFIG_USB_NET_SMSC95XX=y

      发布在 Linux
      S
      Steelen
    • 回复: T113-S3 RTS时序问题

      @qinlinbin 硬件流控有BUG，需要关闭硬件流控设置，自己软件实现

      发布在 Linux
      S
      Steelen
    • T113-S3 reboot 无法重启

      回复: T113 Tina reboot 无法重启
      的确是这个问题

      发布在 D1系列-RISC-V
      S
      Steelen
    • 回复: T113-S3 RTS时序问题

      @yuzukitsuru 好像硬件不支持自动流控

      发布在 Linux
      S
      Steelen
    • 回复: T113-S3 RTS时序问题

      @kakatoo 不是有点儿长，是太长了 😧

      发布在 Linux
      S
      Steelen
    • T113-S3 RTS时序问题

      用T113-S3的串口1，2，3作为RS485接口
      用串口的RTS引脚作为RS485收发控制
      但是发现数据发送完成了，RTS依然有效，持续持间差不多30ms（9600波特率）
      把波特率调高，改成115200，数据发送完成了，RTS依然有效，持续持间差不多30ms，这个明显RTS持续时间太长了，如何解决？或者问题可能在哪里？
      用 stty -F /dev/ttyS1 crtscts 使能RTS控制
      echo 3333333 > /dev/ttyS1
      用linux命令测试的
      445f150b-5726-490f-8c8e-9c349be4630c-image.png
      图中绿色的TXD信号
      黄色的是RTS信号
      不必纠结RTS高低电平有效问题，我们的485电路设计的DE/RE引脚接有有反相器反向的

      发布在 Linux
      S
      Steelen