说明
板子——skyEmbed，imx6q-sabresd
移植——kernel：4.1.3，uboot：3.14.28
具体情况
我想利用修改dts文件内容实现驱动移植，先上参考文档：http: //blog.csdn.net/girlkoo/article/details/45652209[/url]
我按照博客所介绍的内容操作，其他的驱动移植没有问题，唯独usb host驱动移植测试不通过（插入u盘没有反应），在自己的dts文件中添加的代码是（reg_usb_h1_vbus、reg_usb_otg_vbus和）：
- /{
- 。。。
- regulators {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <0>;
- reg_usb_otg_vbus: regulator@0 {
- compatible = "regulator-fixed";
- reg = <0>;
- regulator-name = "usb_otg_vbus";
- regulator-min-microvolt = <5000000>;
- regulator-max-microvolt = <5000000>;
- gpio = <&gpio7 1 0>;
- enable-active-high;
- vin-supply = <&swbst_reg>;
- };
- reg_usb_h1_vbus: regulator@1 {
- compatible = "regulator-fixed";
- reg = <1>;
- regulator-name = "usb_h1_vbus";
- regulator-min-microvolt = <5000000>;
- regulator-max-microvolt = <5000000>;
- gpio = <&gpio1 20 0>;
- enable-active-high;
- vin-supply = <&swbst_reg>;
- };
- };
- }；
- &usbh1 {
- vbus-supply = <®_usb_h1_vbus>;
- status = "okay";
- };
- &usbotg {
- vbus-supply = <®_usb_otg_vbus>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_usbotg>;
- disable-over-current;
- status = "okay";
- };
- &iomuxc {
- pinctrl-names = "default";
- imx6qdl-sabresd {
- pinctrl_usbotg: usbotggrp {
- fsl,pins = <
- MX6QDL_PAD_ENET_RX_ER__USB_OTG_ID 0x17059
- >;
- };
- }；
- }；
启动kernel时提示内容为
- //截取部分
- input: gpio-keys as /devices/soc0/gpio-keys/input/input0
- hctosys: unable to open rtc device (rtc0)
- usb_h1_vbus: disabling
- usb_otg_vbus: disabling
我基础小白，请大神指点，谢谢。
| 
楼主
