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AM3352 USB hub 無法偵測到 4 個 port



USB0 -->USB0 Activate ---> USB HUB (GL852G)

USB1--->USB1 Activate----> USB OTG

usb mouse 插上去瞬間有閃紅燈,然後就沒亮了。console 也沒出現任何訊息。

量了usb0_drvvbus 是有電壓的 5V,在board file 裡的 usb0_drvvbus的確也是 mode0

static struct pinmux_config usb0_pin_mux[] = {
    {"usb0_drvvbus.usb0_drvvbus",    OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT},
    {NULL, 0},
};

但似乎無法作用,請問我還可以從哪邊修改?? 謝謝。