diff options
Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/lib/delay.c')
-rw-r--r-- | target/linux/ubicom32/files/arch/ubicom32/lib/delay.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/lib/delay.c b/target/linux/ubicom32/files/arch/ubicom32/lib/delay.c new file mode 100644 index 000000000..d19f97f09 --- /dev/null +++ b/target/linux/ubicom32/files/arch/ubicom32/lib/delay.c @@ -0,0 +1,49 @@ +/* + * arch/ubicom32/lib/delay.c + * Ubicom32 implementation of udelay() + * + * (C) Copyright 2009, Ubicom, Inc. + * + * This file is part of the Ubicom32 Linux Kernel Port. + * + * The Ubicom32 Linux Kernel Port 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. + * + * The Ubicom32 Linux Kernel Port 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 the Ubicom32 Linux Kernel Port. If not, + * see <http://www.gnu.org/licenses/>. + * + * Ubicom32 implementation derived from (with many thanks): + * arch/m68knommu + * arch/blackfin + * arch/parisc + */ + +#include <linux/module.h> +#include <asm/param.h> +#include <asm/delay.h> +#include <asm/ip5000.h> + +/* + * read_current_timer() + * Return the current value of sysval. + */ +int __devinit read_current_timer(unsigned long *timer_val) +{ + *timer_val = (long)(UBICOM32_IO_TIMER->sysval); + return 0; +} + + +void udelay(unsigned long usecs) +{ + _udelay(usecs); +} +EXPORT_SYMBOL(udelay); |