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301f1aa3 MK |
1 | /* |
2 | * (C) Copyright 2006 | |
3 | * DENX Software Engineering <mk@denx.de> | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License as | |
10 | * published by the Free Software Foundation; either version 2 of | |
11 | * the License, or (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | #include <common.h> | |
25 | ||
6d0f6bcf | 26 | #if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) |
301f1aa3 MK |
27 | # ifdef CONFIG_AT91RM9200 |
28 | ||
29 | #include <asm/arch/hardware.h> | |
30 | ||
9c4884f5 | 31 | int usb_cpu_init(void) |
301f1aa3 MK |
32 | { |
33 | /* Enable USB host clock. */ | |
34 | *AT91C_PMC_SCER = AT91C_PMC_UHP; /* 48MHz clock enabled for UHP */ | |
35 | *AT91C_PMC_PCER = 1 << AT91C_ID_UHP; /* Peripheral Clock Enable Register */ | |
36 | return 0; | |
37 | } | |
38 | ||
9c4884f5 | 39 | int usb_cpu_stop(void) |
301f1aa3 MK |
40 | { |
41 | /* Initialization failed */ | |
42 | *AT91C_PMC_PCDR = 1 << AT91C_ID_UHP; /* Peripheral Clock Disable Register */ | |
43 | *AT91C_PMC_SCDR = AT91C_PMC_UHP; /* 48MHz clock disabled for UHP */ | |
44 | return 0; | |
45 | } | |
ddf83a2f | 46 | |
9c4884f5 | 47 | int usb_cpu_init_fail(void) |
ddf83a2f | 48 | { |
9c4884f5 | 49 | return usb_cpu_stop(); |
ddf83a2f MK |
50 | } |
51 | ||
301f1aa3 | 52 | # endif /* CONFIG_AT91RM9200 */ |
6d0f6bcf | 53 | #endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */ |