Power of PHY was downed

Dear TI engineers,

I want to use the USB controller of AM3358(TMDXEVM3358) as a host.
I set a register by the following steps, but the Power of PHY was downed.
Would you give me the advice?

 (1) I used the GEL file (AM335x_15x15_EVM.gel) for setting DPLLs.
     I did not change any register values of the setting in the GEL file.

 (2) I set a register in turn from the top of the following tables.
     -----------------------+------------+-------------------
     Register Name          | write value| read value after written
     -----------------------+------------+-------------------
     CM_PER_L4LS_CLKCTRL    | 0x00000002 | 0x00000002
     CM_WKUP_L4WKUP_CLKCTRL | 0x00000002 | 0x00000002
     CM_PER_L4LS_CLKSTCTRL  | 0x00000002 | 0x02004502
     CM_WKUP_CLKSTCTRL      | 0x00000002 | 0x00001616
     CM_PER_CPSW_CLKSTCTRL  | 0x00000002 | 0x00000012
     CM_WKUP_CONTROL_CLKCTRL| 0x00000002 | 0x00000002
     CM_WKUP_UART0_CLKCTRL  | 0x00000002 | 0x00000002
     CM_PER_UART1_CLKCTRL   | 0x00000002 | 0x00000002
     CM_PER_CPGMAC0_CLKCTRL | 0x00000002 | 0x00000002
     CM_PER_USB0_CLKCTRL    | 0x00000002 | 0x00000002
     conf_uart0_rxd         | 0x00000020 | 0x00000020
     conf_uart0_txd         | 0x00000000 | 0x00000000
     conf_usb0_drvvbus      | 0x00000000 | 0x00000000
     RM_PER_RSTCTRL         | 0x00000001 | 0x00000001
     PM_PER_PWRSTCTRL       | 0xEE0000EB | 0xEE0000EB
     PM_PER_PWRSTST         | no write   | 0x01E60007
     USB0CTRL               | 0x00000001 | 0x00000000
     usb_ctrl0              | 0x3c186004 | 0x3c006007
     USB0MODE               | 0x00000000 | 0x00000000
     USB0UTMI               | 0x00000002 | 0x00000002
     -----------------------+------------+-------------------

Best Regards.