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author | Markus Klotzbuecher <mk@denx.de> | 2006-05-23 13:38:35 +0200 |
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committer | Markus Klotzbuecher <mk@pollux.denx.de> | 2006-05-23 13:38:35 +0200 |
commit | 301f1aa384d0edcae6a22fd9adb933ad71695ecc (patch) | |
tree | 6372c981f149c1baac612c71ff7d994a097071e0 /cpu/arm920t/at91rm9200/usb.c | |
parent | 24e37645e7378b20fa8f20e2996c8fb8e90c70c9 (diff) | |
download | u-boot-imx-301f1aa384d0edcae6a22fd9adb933ad71695ecc.zip u-boot-imx-301f1aa384d0edcae6a22fd9adb933ad71695ecc.tar.gz u-boot-imx-301f1aa384d0edcae6a22fd9adb933ad71695ecc.tar.bz2 |
Changed the mp2usb (at91rm9200) board to use the generic OHCI driver. Some
fixes to the latter.
Diffstat (limited to 'cpu/arm920t/at91rm9200/usb.c')
-rw-r--r-- | cpu/arm920t/at91rm9200/usb.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/cpu/arm920t/at91rm9200/usb.c b/cpu/arm920t/at91rm9200/usb.c new file mode 100644 index 0000000..7b83f23 --- /dev/null +++ b/cpu/arm920t/at91rm9200/usb.c @@ -0,0 +1,47 @@ +/* + * (C) Copyright 2006 + * DENX Software Engineering <mk@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) && defined(CFG_USB_OHCI_CPU_INIT) +# ifdef CONFIG_AT91RM9200 + +#include <asm/arch/hardware.h> + +int usb_cpu_init() +{ + /* Enable USB host clock. */ + *AT91C_PMC_SCER = AT91C_PMC_UHP; /* 48MHz clock enabled for UHP */ + *AT91C_PMC_PCER = 1 << AT91C_ID_UHP; /* Peripheral Clock Enable Register */ + return 0; +} + +int usb_cpu_stop() +{ + /* Initialization failed */ + *AT91C_PMC_PCDR = 1 << AT91C_ID_UHP; /* Peripheral Clock Disable Register */ + *AT91C_PMC_SCDR = AT91C_PMC_UHP; /* 48MHz clock disabled for UHP */ + return 0; +} +# endif /* CONFIG_AT91RM9200 */ +#endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */ |