1 files changed, 46 insertions, 0 deletions
diff --git a/arch/avr32/lib/interrupts.c b/arch/avr32/lib/interrupts.c
new file mode 100644
index 0000000..bbbc490
--- /dev/null
+++ b/arch/avr32/lib/interrupts.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * 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>
+
+#include <asm/sysreg.h>
+
+void enable_interrupts(void)
+{
+	asm volatile("csrf	%0" : : "n"(SYSREG_GM_OFFSET));
+}
+
+int disable_interrupts(void)
+{
+	unsigned long sr;
+
+	sr = sysreg_read(SR);
+	asm volatile("ssrf	%0" : : "n"(SYSREG_GM_OFFSET));
+
+#ifdef CONFIG_AT32UC3A0xxx
+	/* Two NOPs are required after masking interrupts on the
+	 * AT32UC3A0512ES. See errata 41.4.5.5. */
+	asm("nop");
+	asm("nop");
+#endif
+
+	return !SYSREG_BFEXT(GM, sr);
+}