[ubicom32]: move new files out from platform support patch

[openwrt/svn-archive/archive.git] / target / linux / ubicom32 / files / arch / ubicom32 / lib / delay.c

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 (file)
index 0000000..d19f97f
--- /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);