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Diffstat (limited to 'include/asm-mips/xtalk/xtalk.h')
| -rw-r--r-- | include/asm-mips/xtalk/xtalk.h | 52 |
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 00000000000..4a60f27c881 --- /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 */ |