diff options
Diffstat (limited to 'cpu/arm926ejs/at91cap9/usb.c')
-rw-r--r-- | cpu/arm926ejs/at91cap9/usb.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/cpu/arm926ejs/at91cap9/usb.c b/cpu/arm926ejs/at91cap9/usb.c new file mode 100644 index 0000000..69da5f3 --- /dev/null +++ b/cpu/arm926ejs/at91cap9/usb.c @@ -0,0 +1,54 @@ +/* + * (C) Copyright 2006 + * DENX Software Engineering <mk <at> 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_NEW) && defined(CFG_USB_OHCI_CPU_INIT) +#ifdef CONFIG_AT91CAP9 + +#include <asm/arch/hardware.h> + +int usb_cpu_init(void) +{ + /* Enable USB host clock. */ + AT91C_BASE_PMC->PMC_SCER = AT91C_PMC_UHP; + AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_UHP; + + return 0; +} + +int usb_cpu_stop(void) +{ + /* Disable USB host clock. */ + AT91C_BASE_PMC->PMC_PCDR = 1 << AT91C_ID_UHP; + AT91C_BASE_PMC->PMC_SCDR = AT91C_PMC_UHP; + return 0; +} + +int usb_cpu_init_fail(void) +{ + return usb_cpu_stop(); +} + +#endif /* CONFIG_AT91CAP9 */ +#endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */ |