1 files changed, 69 insertions, 0 deletions
diff --git a/arch/blackfin/lib/ins.S b/arch/blackfin/lib/ins.S
new file mode 100644
index 0000000..730d2b4
--- /dev/null
+++ b/arch/blackfin/lib/ins.S
@@ -0,0 +1,69 @@
+/*
+ * File:         arch/blackfin/lib/ins.S
+ * Based on:
+ * Author:       Bas Vermeulen <bas@buyways.nl>
+ *
+ * Created:      Tue Mar 22 15:27:24 CEST 2005
+ * Description:  Implementation of ins{bwl} for BlackFin processors using zero overhead loops.
+ *
+ * Modified:
+ *               Copyright 2004-2006 Analog Devices Inc.
+ *               Copyright (C) 2005 Bas Vermeulen, BuyWays BV <bas@buyways.nl>
+ *
+ * Bugs:         Enter bugs at http://blackfin.uclinux.org/
+ *
+ * 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/linkage.h>
+
+.align 2
+
+ENTRY(_insl)
+	P0 = R0;	/* P0 = port */
+	cli R3;
+	P1 = R1;	/* P1 = address */
+	P2 = R2;	/* P2 = count */
+	SSYNC;
+	LSETUP( .Llong_loop_s, .Llong_loop_e) LC0 = P2;
+.Llong_loop_s: R0 = [P0];
+.Llong_loop_e: [P1++] = R0;
+	sti R3;
+	RTS;
+
+ENTRY(_insw)
+	P0 = R0;	/* P0 = port */
+	cli R3;
+	P1 = R1;	/* P1 = address */
+	P2 = R2;	/* P2 = count */
+	SSYNC;
+	LSETUP( .Lword_loop_s, .Lword_loop_e) LC0 = P2;
+.Lword_loop_s: R0 = W[P0];
+.Lword_loop_e: W[P1++] = R0;
+	sti R3;
+	RTS;
+
+ENTRY(_insb)
+	P0 = R0;	/* P0 = port */
+	cli R3;
+	P1 = R1;	/* P1 = address */
+	P2 = R2;	/* P2 = count */
+	SSYNC;
+	LSETUP( .Lbyte_loop_s, .Lbyte_loop_e) LC0 = P2;
+.Lbyte_loop_s: R0 = B[P0];
+.Lbyte_loop_e: B[P1++] = R0;
+	sti R3;
+	RTS;