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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 | ||
26 | #if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) | |
27 | ||
28 | #include <asm/arch/hardware.h> | |
29 | #include <asm/arch/io.h> | |
30 | #include <asm/arch/at91_pmc.h> | |
31 | ||
32 | int usb_cpu_init(void) | |
33 | { | |
34 | /* Enable USB host clock. */ | |
35 | at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_UHP); | |
36 | #ifdef CONFIG_AT91SAM9261 | |
37 | at91_sys_write(AT91_PMC_SCER, AT91_PMC_UHP | AT91_PMC_HCK0); | |
38 | #else | |
39 | at91_sys_write(AT91_PMC_SCER, AT91_PMC_UHP); | |
40 | #endif | |
41 | ||
42 | return 0; | |
43 | } | |
44 | ||
45 | int usb_cpu_stop(void) | |
46 | { | |
47 | /* Disable USB host clock. */ | |
48 | at91_sys_write(AT91_PMC_PCDR, 1 << AT91_ID_UHP); | |
49 | #ifdef CONFIG_AT91SAM9261 | |
50 | at91_sys_write(AT91_PMC_SCDR, AT91_PMC_UHP | AT91_PMC_HCK0); | |
51 | #else | |
52 | at91_sys_write(AT91_PMC_SCDR, AT91_PMC_UHP); | |
53 | #endif | |
54 | return 0; | |
55 | } | |
56 | ||
57 | int usb_cpu_init_fail(void) | |
58 | { | |
59 | return usb_cpu_stop(); | |
60 | } | |
61 | ||
62 | #endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */ |