TI中文支持网项目中使用ti-processor-sdk-linux-am335x-evm-05.00.00.15版本开发包，调试USB1作为主站，dts如下
&usb0 {
status = "okay";
dr_mode = "host";
};
&usb1 {
status = "okay";
dr_mode = "host";
};
USB1_ID接地，USB_VBUS直接连5V电源，USB1_DP,USB1_DM直连Usb接口座子，menuconfig配置如下：
-*- SCSI device support
[ ] SCSI: use blk-mq I/O path by default
[*] legacy /proc/scsi/ support │ │
*** SCSI support type (disk, tape, CD-ROM) ***
<*> SCSI disk support
< > SCSI tape support
< > SCSI OnStream SC-x0 tape support
< > SCSI CDROM support
<*> SCSI generic support
│ │ — USB support │ │ │ │ <*> Support for Host-side USB │ │ │ │ [*] PCI based USB host interface │ │ │ │ [ ] USB announce new devices │ │ │ │ *** Miscellaneous USB options *** │ │ │ │ [*] Enable USB persist by default │ │ │ │ [ ] Dynamic USB minor allocation │ │ │ │ [*] OTG support
│ │ <*> xHCI HCD (USB 3.0) support │ │ │ │ <*> Generic xHCI driver for a platform device │ │ │ │ <*> EHCI HCD (USB 2.0) support │ │ │ │ [*] Root Hub Transaction Translators │ │ │ │ [*] Improved Transaction Translator scheduling │ │ │ │ <*> EHCI support for OMAP3 and later chips │ │ │ │ <*> Generic EHCI driver for a platform device
内核启动后出现错误打印信息如下：
[ 1.390713] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.397328] ehci-pci: EHCI PCI platform driver
[ 1.402087] ehci-platform: EHCI generic platform driver
[ 1.407733] ehci-omap: OMAP-EHCI Host Controller driver
[ 1.413215] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 1.419454] ohci-pci: OHCI PCI platform driver
[ 1.424043] ohci-platform: OHCI generic platform driver
[ 1.430130] usbcore: registered new interface driver usb-storage
[ 1.438906] #musb_init_controller:status=-19
[ 1.443331] musb-hdrc musb-hdrc.0: musb_init_controller failed with status -19
[ 1.452067] #musb_init_controller:status=-19
[ 1.456382] musb-hdrc musb-hdrc.1: musb_init_controller failed with status -19
插上U盘无任何反应，不知道哪里出错了，请帮忙看看问题，谢谢！！！
user1794335：
之前有看到USB_VBUS直连5V需要patch代码，不知是不是没有patch代码的原因呢
Shine：
回复 user1794335:
请问您用的是host mode还是OTG mode?"之前有看到USB_VBUS直连5V需要patch代码"这个是指OTG模式下。
Shine：
回复 user1794335:
感谢分享！
