1 files changed, 28 insertions, 0 deletions

diff --git a/arch/xtensa/platforms/xt2000/include/platform/serial.h b/arch/xtensa/platforms/xt2000/include/platform/serial.h
new file mode 100644
index 00000000000..7226cf732b4
--- /dev/null
+++ b/arch/xtensa/platforms/xt2000/include/platform/serial.h
@@ -0,0 +1,28 @@
+/*
+ * platform/serial.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_XT2000_SERIAL_H
+#define _XTENSA_XT2000_SERIAL_H
+
+#include <variant/core.h>
+#include <asm/io.h>
+
+/*  National-Semi PC16552D DUART:  */
+
+#define DUART16552_1_INTNUM     XCHAL_EXTINT4_NUM
+#define DUART16552_2_INTNUM     XCHAL_EXTINT5_NUM
+
+#define DUART16552_1_ADDR       IOADDR(0x0d050020)      /* channel 1 */
+#define DUART16552_2_ADDR       IOADDR(0x0d050000)      /* channel 2 */
+
+#define DUART16552_XTAL_FREQ    18432000        /* crystal frequency in Hz */
+#define BASE_BAUD ( DUART16552_XTAL_FREQ / 16 )
+
+#endif /* _XTENSA_XT2000_SERIAL_H */