diff options
Diffstat (limited to 'drivers/usb/host/ohci-da8xx.c')
| -rw-r--r-- | drivers/usb/host/ohci-da8xx.c | 48 | 
1 files changed, 48 insertions, 0 deletions
| diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c new file mode 100644 index 000000000..f0ccb83f7 --- /dev/null +++ b/drivers/usb/host/ohci-da8xx.c @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2012 Sughosh Ganu <urwithsughosh@gmail.com> + * + * 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. + */ + +#include <common.h> + +#include <asm/arch/da8xx-usb.h> + +int usb_cpu_init(void) +{ +	/* enable psc for usb2.0 */ +	lpsc_on(DAVINCI_LPSC_USB20); + +	/* enable psc for usb1.0 */ +	lpsc_on(DAVINCI_LPSC_USB11); + +	/* start the on-chip usb phy and its pll */ +	if (usb_phy_on()) +		return 0; + +	return 1; +} + +int usb_cpu_stop(void) +{ +	usb_phy_off(); + +	/* turn off the usb clock and assert the module reset */ +	lpsc_disable(DAVINCI_LPSC_USB11); +	lpsc_disable(DAVINCI_LPSC_USB20); + +	return 0; +} + +int usb_cpu_init_fail(void) +{ +	return usb_cpu_stop(); +} |