在设备树里启用了 usb otg：
&otg_sram {
status = "okay";
};
&usb_otg {
dr_mode = "otg";
status = "okay";
};
®_usb0_vbus {
status = "okay";
};
®_usb1_vbus {
gpio = <&pio 7 7 GPIO_ACTIVE_HIGH>;
status = "okay";
};
®_usb2_vbus {
status = "disabled";
};
&usbphy {
usb0_id_det-gpios = <&pio 7 6 GPIO_ACTIVE_HIGH>; /* PH6 */
usb0_vbus_det-gpios = <&pio 7 5 GPIO_ACTIVE_HIGH>; /* PH5 */
usb0_vbus-supply = <®_usb0_vbus>;
usb1_vbus-supply = <®_usb1_vbus>;
usb2_vbus-supply = <®_usb2_vbus>;
status = "okay";
};u-boot 使用最新主线版本，启用了 CONFIG_CMD_USB_MASS_STORAGE, USB_FUNCTION_MASS_STORAGE, USB_GADGET, USB_GADGET_DOWNLOAD。
进入 u-boot 交互命令行后，使用 dm tree 可以看到已经有了相关驱动了：
usb 0 [ ] sunxi-musb | |-- usb@1c13000但是没有 probed，不知道是不是这里的问题，然后运行 ums 0 mmc 1 报以下错误：
Controller uninitialized
g_dnl_register: failed!, error: -6
g_dnl_register failed离线
暂时打这个 patch 解决了，也不知道这样做对不对。
diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index 827e545032..22c84f0e56 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -673,6 +673,25 @@ void sunxi_board_init(void)
#endif /* CONFIG_SPL_BUILD */
#ifdef CONFIG_USB_GADGET
+#include <usb.h>
+#include <dm/device-internal.h>
+int board_usb_init(int index, enum usb_init_type init)
+{
+ struct udevice *dev;
+ int ret;
+ ret = uclass_get_device(UCLASS_USB_GADGET_GENERIC, index, &dev);
+ return ret;
+}
+int board_usb_cleanup(int index, enum usb_init_type init)
+{
+ struct udevice *dev;
+ int ret;
+ ret = uclass_get_device(UCLASS_USB_GADGET_GENERIC, index, &dev);
+ if (!ret) {
+ device_remove(dev, DM_REMOVE_NORMAL);
+ }
+ return 0;
+}
int g_dnl_board_usb_cable_connected(void)
{
struct udevice *dev;离线
@colin
不用改这里啊。把sunxi_glue.c的bind方法实现就行了。默认没有实现 。所以不能自动probe
离线
T113也能uboot挂载mmc成U盘吗，运行ums 0 mmc 0后，没有挂载U盘，设备管理器里面显示USB download gadget
离线
我在A64上遇到了同样的问题：
Hit any key to stop autoboot: 0
A64 =>
A64 => ums 0 mmc 1
UMS: LUN 0, dev mmc 1, hwpart 0, sector 0x0, count 0xe90000
Controller uninitialized
g_dnl_register: failed!, error: -6
g_dnl_register failed我发现如果开启了 [ ] USB Ethernet Gadget
│ -> Device Drivers
│ -> USB support (USB [=y])
│ -> USB Ethernet Gadget (USB_ETHER [=y])
│ -> USB Ethernet Gadget Model (<choice> [=y])
ums就可以用了：
U-Boot 2026.04-rc2 (Feb 16 2026 - 07:27:29 +0800) Allwinner A64
CPU: Allwinner A64 (SUN50I)
Model: HDG-CPU-A64C-A (HelperA64)
DRAM: 1 GiB
Core: 86 devices, 22 uclasses, devicetree: separate
WDT: Not starting watchdog@1c20ca0
MMC: mmc@1c0f000: 0, mmc@1c10000: 3, mmc@1c11000: 1
Loading Environment from FAT... Unable to read "uboot.env" from mmc0:1...
In: serial,usbkbd
Out: serial,vidconsole
Err: serial,vidconsole
Allwinner mUSB OTG (Peripheral)
Net: using musb-hdrc, OUT ep1out IN ep1in STATUS ep2in
MAC de:ad:be:ef:00:01
HOST MAC de:ad:be:ef:00:00
RNDIS ready
eth0: usb_ether
USB not auto load
Hit any key to stop autoboot: 0
A64 => ums mmc 1
UMS: LUN 0, dev mmc 1, hwpart 0, sector 0x0, count 0xe90000
\我还并不清楚为什么会这样，暂时用着吧
离线