t113-s3安装XR829模块卡死

[sat1006]

最近刚刚接触XR829，根据资料、论坛等进行了设备树的配置、编译等工作。使用的sdc2。我从论坛有看到需要sdc2需要改为v5p3x。

当我insmod xr829.ko时，就会卡死在安装过程中，每次卡死的位置不是一样的。如下为两次安装模块时的打印信息：

如下是我设备树相关的配置：

&sdc2 {
	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 = <50000000>;
	ctl-spec-caps = <0x8>;
	status = "okay";
};

rfkill: rfkill@0 {
	compatible    = "allwinner,sunxi-rfkill";
	chip_en;
	power_en;
	pinctrl-0 = <&wlan_pins_a>;
	pinctrl-names = "default";
	status        = "okay";

	wlan: wlan@0 {
	     compatible    = "allwinner,sunxi-wlan";
	     clock-names = "32k-fanout1";
	     clocks = <&ccu CLK_FANOUT1_OUT>;
	     wlan_busnum    = <0x2>;  
	     wlan_regon    = <&pio PG 4 GPIO_ACTIVE_HIGH>;
	     wlan_hostwake  = <&pio PG 10 GPIO_ACTIVE_HIGH>;
		/*wlan_power    = "VCC-3V3";*/
		/*wlan_power_vol = <3300000>;*/
		/*interrupt-parent = <&pio>;
	       interrupts = < PG 10 IRQ_TYPE_LEVEL_HIGH>;*/
	      wakeup-source;
	      status        = "okay";
		};
	};

	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";
	};

sdc2: sdmmc@4022000 {
   compatible = "allwinner,sunxi-mmc-v5p3x";
   device_type = "sdc2";
   reg = <0x0 0x04022000 0x0 0x1000>;
   interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
   clocks = <&dcxo24M>,
     <&ccu CLK_PLL_PERIPH0_2X>,
     <&ccu CLK_MMC2>,
     <&ccu CLK_BUS_MMC2>;
   clock-names = "osc24m","pll_periph","mmc","ahb";
   resets = <&ccu RST_BUS_MMC2>;
   reset-names = "rst";
   pinctrl-names = "default","sleep";
   pinctrl-0 = <&sdc2_pins_a>;
   pinctrl-1 = <&sdc2_pins_b>;
   max-frequency = <50000000>;
   bus-width = <4>;
   /*broken-cd;*/
   /*cd-inverted*/
   /*cd-gpios = <&pio PG 6 6 1 2 0>;*/
   /* vmmc-supply = <&reg_3p3v>;*/
   /* vqmc-supply = <&reg_3p3v>;*/
   /* vdmc-supply = <&reg_3p3v>;*/
   /*vmmc = "vcc-card";*/
   /*vqmc = "";*/
   /*vdmc = "";*/
   cap-sd-highspeed;
   no-mmc;
   no-sd;
   /*sd-uhs-sdr50;*/
   /*sd-uhs-ddr50;*/
   /*sd-uhs-sdr104;*/
   /*cap-sdio-irq;*/
   keep-power-in-suspend;
   /*ignore-pm-notify;*/
   /*sunxi-power-save-mode;*/
   /*sunxi-dly-400k = <1 0 0 0 0>; */
   /*sunxi-dly-26M  = <1 0 0 0 0>;*/
   /*sunxi-dly-52M  = <1 0 0 0 0>;*/
   //sunxi-dly-52M-ddr4  = <1 0 0 0 2>;
   /*sunxi-dly-52M-ddr8  = <1 0 0 0 0>;*/
   //sunxi-dly-104M  = <1 0 0 0 1>;
   /*sunxi-dly-208M  = <1 1 0 0 0>;*/
   //sunxi-dly-208M  = <1 0 0 0 1>;
   /*sunxi-dly-104M-ddr  = <1 0 0 0 0>;*/
   /*sunxi-dly-208M-ddr  = <1 0 0 0 0>;*/

   status = "okay";
  };

请问是我设备树配置有问题嘛？我该怎样进行排查这个问题呢？

[awwwwa]

卡死说明CPU进入异常情况且不能trap，似乎是MMC通讯的问题，请问板子是自己做的吗？各组供电正常吗。特别是3v3这一路。

[sat1006]

@awwwwa 您好，谢谢您的回复。板子是自己做的。供电3.3V是正常的。

[WhycanService]

@sat1006 考虑在通讯过程中 T113-S3 受到 SDIO 倒灌干扰出现死机状况

[sat1006]

@whycanservice 感谢您的回复。我排查一下这个问题。刚刚接触这方面，知识储备还不够。

[sat1006]

@whycanservice 您好。我现在将sdc2的速率降下来后，模块可以正常加载。不会出现死机现象。我对这里的知识不太了解，我现在有两个疑惑想请教您一下：1、我降低这个速率是否会有什么影响？2、我用另一块板子测试，不降低速率也可以进行加载，那会有什么原因导致发生这个问题呢？麻烦您了。

&sdc2 {
	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 = <10000000>;
	ctl-spec-caps = <0x8>;
	status = "okay";
};

[wyc0000]

@sat1006 你好，这个问题解决了吗？