| /* |
| * (C) Copyright 2006 |
| * DENX Software Engineering <mk@denx.de> |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #include <common.h> |
| |
| #if defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) |
| # ifdef CONFIG_AT91RM9200 |
| |
| #include <asm/arch/hardware.h> |
| |
| int usb_cpu_init() |
| { |
| /* Enable USB host clock. */ |
| *AT91C_PMC_SCER = AT91C_PMC_UHP; /* 48MHz clock enabled for UHP */ |
| *AT91C_PMC_PCER = 1 << AT91C_ID_UHP; /* Peripheral Clock Enable Register */ |
| return 0; |
| } |
| |
| int usb_cpu_stop() |
| { |
| /* Initialization failed */ |
| *AT91C_PMC_PCDR = 1 << AT91C_ID_UHP; /* Peripheral Clock Disable Register */ |
| *AT91C_PMC_SCDR = AT91C_PMC_UHP; /* 48MHz clock disabled for UHP */ |
| return 0; |
| } |
| |
| int usb_cpu_init_fail() |
| { |
| usb_cpu_stop(); |
| } |
| |
| # endif /* CONFIG_AT91RM9200 */ |
| #endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */ |