Initial import of arm32 port

1 files changed, 66 insertions, 0 deletions

diff --git a/sys/arch/arm32/boot/svc32.S b/sys/arch/arm32/boot/svc32.S
new file mode 100644
index 00000000000..7e46c938197
--- /dev/null
+++ b/sys/arch/arm32/boot/svc32.S
@@ -0,0 +1,66 @@
+/* $NetBSD: svc32.S,v 1.1 1996/01/31 23:18:38 mark Exp $ */
+
+/*
+ * Copyright (c) 1994,1955 Mark Brinicombe.
+ * Copyright (c) 1994 Brini.
+ * All rights reserved.
+ *
+ * This code is derived from software written for Brini by Mark Brinicombe
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Brini.
+ * 4. The name of the company nor the name of the author may be used to
+ *    endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES * LOSS OF USE, DATA, OR PROFITS * OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * RiscBSD kernel project
+ *
+ * svc32.s
+ *
+ * Created      : 12/09/94
+ * Last updated : 12/09/94
+ *
+ * Based on kate/library/svc32.s
+ *
+ *    $Id: svc32.S,v 1.1 1996/04/24 11:08:32 deraadt Exp $
+ */
+
+#include "regs.h"
+#include <machine/cpu.h>
+
+/*
+ * Switches from SVC26 mode to SVC32 mode
+ */
+
+	.text
+	.global	_SVC32
+_SVC32:
+	mrs	r1, cpsr_all
+	bic	r1, r1, #(PSR_MODE)
+	orr	r1, r1, #(PSR_SVC32_MODE)
+	msr	cpsr_all, r1
+
+	bic	lr, lr, #0xfc000000
+
+	mov	pc, lr