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在uboot使用usb start 命令来测试作为usb1作为host端没问题，USB0作为设备端却没有通过！！
使用usb0 作为 设备端（MUSB_PERIPHERAL），USB1作为主控端（MUSB_HOST）！ log如下： => usb start 0
starting USB...
USB0: uclass_find_device_by_seq: 0 1
- 1 -1
- not found
OF: ** translation for device usb@47401800 **
OF: bus is default (na=1, ns=1) on usb@47400000
OF: translating address: 00184047
OF: parent bus is default (na=1, ns=1) on ocp
OF: no ranges, 1:1 translation
OF: parent translation for: 00000000
OF: with offset: 1195382784
OF: one level translation: 00184047
OF: parent bus is default (na=1, ns=1) on
OF: no ranges, 1:1 translation
OF: parent translation for: 00000000
OF: with offset: 1195382784
OF: one level translation: 00184047
OF: reached root node
fdtdec_lookup_phandle: phys
fdtdec_lookup_phandle: ti,ctrl_mod
fdtdec_get_addr_size_fixed: reg: addr=44e10620
fdtdec_get_int: mentor,multipoint: 0x1 (1)
fdtdec_get_int: mentor,num-eps: 0x10 (16)
fdtdec_get_int: mentor,ram-bits: 0xc (12)
fdtdec_get_int: mentor,power: 0x1f4 (500)
musb-hdrc:ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
musb-hdrc: hw_ep 0shared, max 64
musb-hdrc: hw_ep 1tx, max 512
musb-hdrc: hw_ep 1rx, max 512
musb-hdrc: hw_ep 2tx, max 512
musb-hdrc: hw_ep 2rx, max 512
musb-hdrc: hw_ep 3tx, max 512
musb-hdrc: hw_ep 3rx, max 512
musb-hdrc: hw_ep 4tx, max 512
musb-hdrc: hw_ep 4rx, max 512
musb-hdrc: hw_ep 5tx, max 512
musb-hdrc: hw_ep 5rx, max 512
musb-hdrc: hw_ep 6tx, max 512
musb-hdrc: hw_ep 6rx, max 512
musb-hdrc: hw_ep 7tx, max 512
musb-hdrc: hw_ep 7rx, max 512
musb-hdrc: hw_ep 8tx, max 512
musb-hdrc: hw_ep 8rx, max 512
musb-hdrc: hw_ep 9tx, max 512
musb-hdrc: hw_ep 9rx, max 512
musb-hdrc: hw_ep 10tx, max 256
musb-hdrc: hw_ep 10rx, max 64
musb-hdrc: hw_ep 11tx, max 256
musb-hdrc: hw_ep 11rx, max 64
musb-hdrc: hw_ep 12tx, max 256
musb-hdrc: hw_ep 12rx, max 64
musb-hdrc: hw_ep 13shared, max 4096
musb-hdrc: hw_ep 14shared, max 1024
musb-hdrc: hw_ep 15shared, max 1024
USB Host mode controller at 47401800 using PIO, IRQ 0
<== devctl 90
HDRC disabled
Port not available.
scan end
=> usb info
USB is stopped. Please issue 'usb start' first.
Command failed, result=1 ================================================================= 测试环境为ti-processor-sdk-linux-am335x-evm-03.03.00.04，硬件为am3352, 另外dtb的设置如下：
&usb {
status = "okay";
};
&usb_ctrl_mod {
status = "okay";
}; &usb0_phy {
status = "okay";
}; &usb1_phy {
status = "okay";
}; &usb0 {
status = "okay";
}; &usb1 {
status = "okay";
dr_mode = "host";
}; &cppi41dma {
status = "okay";
}; 另外board.c的设置如下： #define CONFIG_USB_MUSB_DSPS
#define CONFIG_ARCH_MISC_INIT
#define CONFIG_USB_MUSB_PIO_ONLY
#define CONFIG_USB_MUSB_DISABLE_BULK_COMBINE_SPLIT
#define CONFIG_AM335X_USB0
#define CONFIG_AM335X_USB0_MODE MUSB_PERIPHERAL
#define CONFIG_AM335X_USB1
#define CONFIG_AM335X_USB1_MODE MUSB_HOST ================================================================ 请教大神，这个sdk的关于uboot还需要配置什么地方？？硬件我这边确认已经没有问题，使用startware测试过usb的。
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