1 files changed, 52 insertions, 0 deletions

diff --git a/include/asm-mips/xtalk/xtalk.h b/include/asm-mips/xtalk/xtalk.h
new file mode 100644
index 000000000000..4a60f27c8817
--- /dev/null
+++ b/include/asm-mips/xtalk/xtalk.h
@@ -0,0 +1,52 @@
+/*
+ * 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.
+ *
+ * xtalk.h -- platform-independent crosstalk interface, derived from
+ * IRIX <sys/PCI/bridge.h>, revision 1.38.
+ *
+ * Copyright (C) 1995 - 1997, 1999 Silcon Graphics, Inc.
+ * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
+ */
+#ifndef _ASM_XTALK_XTALK_H
+#define _ASM_XTALK_XTALK_H
+
+#ifndef __ASSEMBLY__
+/*
+ * User-level device driver visible types
+ */
+typedef char            xwidgetnum_t;   /* xtalk widget number  (0..15) */
+
+#define XWIDGET_NONE            -1
+
+typedef int xwidget_part_num_t; /* xtalk widget part number */
+
+#define XWIDGET_PART_NUM_NONE   -1
+
+typedef int             xwidget_rev_num_t;      /* xtalk widget revision number */
+
+#define XWIDGET_REV_NUM_NONE    -1
+
+typedef int xwidget_mfg_num_t;  /* xtalk widget manufacturing ID */
+
+#define XWIDGET_MFG_NUM_NONE    -1
+
+typedef struct xtalk_piomap_s *xtalk_piomap_t;
+
+/* It is often convenient to fold the XIO target port
+ * number into the XIO address.
+ */
+#define XIO_NOWHERE     (0xFFFFFFFFFFFFFFFFull)
+#define XIO_ADDR_BITS   (0x0000FFFFFFFFFFFFull)
+#define XIO_PORT_BITS   (0xF000000000000000ull)
+#define XIO_PORT_SHIFT  (60)
+
+#define XIO_PACKED(x)   (((x)&XIO_PORT_BITS) != 0)
+#define XIO_ADDR(x)     ((x)&XIO_ADDR_BITS)
+#define XIO_PORT(x)     ((xwidgetnum_t)(((x)&XIO_PORT_BITS) >> XIO_PORT_SHIFT))
+#define XIO_PACK(p,o)   ((((uint64_t)(p))<<XIO_PORT_SHIFT) | ((o)&XIO_ADDR_BITS))
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* _ASM_XTALK_XTALK_H */