| Sughosh Ganu | 282e2af | 2012-08-09 10:45:20 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 Sughosh Ganu <urwithsughosh@gmail.com> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation; either version 2 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | */ |
| 14 | |
| 15 | #include <common.h> |
| 16 | |
| 17 | #include <asm/arch/da8xx-usb.h> |
| 18 | |
| 19 | int usb_cpu_init(void) |
| 20 | { |
| 21 | /* enable psc for usb2.0 */ |
| 22 | lpsc_on(DAVINCI_LPSC_USB20); |
| 23 | |
| 24 | /* enable psc for usb1.0 */ |
| 25 | lpsc_on(DAVINCI_LPSC_USB11); |
| 26 | |
| 27 | /* start the on-chip usb phy and its pll */ |
| 28 | if (usb_phy_on()) |
| 29 | return 0; |
| 30 | |
| 31 | return 1; |
| 32 | } |
| 33 | |
| 34 | int usb_cpu_stop(void) |
| 35 | { |
| 36 | usb_phy_off(); |
| 37 | |
| 38 | /* turn off the usb clock and assert the module reset */ |
| 39 | lpsc_disable(DAVINCI_LPSC_USB11); |
| 40 | lpsc_disable(DAVINCI_LPSC_USB20); |
| 41 | |
| 42 | return 0; |
| 43 | } |
| 44 | |
| 45 | int usb_cpu_init_fail(void) |
| 46 | { |
| 47 | return usb_cpu_stop(); |
| 48 | } |