[TC] TURBOchannel support for the DECstation

This is the platform-specific part of TURBOchannel bus support for the
DECstation.  It implements determining whether the bus is actually there,
getting bus parameters, IRQ assignments for devices and protected accesses
to possibly unoccupied slots that may trigger bus error exceptions.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/asm-mips/dec/system.h b/include/asm-mips/dec/system.h
index 78af51fbc797..b2afaccd6831 100644
--- a/include/asm-mips/dec/system.h
+++ b/include/asm-mips/dec/system.h
@@ -3,7 +3,7 @@
  *
  *      Generic DECstation/DECsystem bits.
  *
- *      Copyright (C) 2005  Maciej W. Rozycki
+ *      Copyright (C) 2005, 2006  Maciej W. Rozycki
  *
  *      This program is free software; you can redistribute it and/or
  *      modify it under the terms of the GNU General Public License
@@ -14,5 +14,6 @@
 #define __ASM_DEC_SYSTEM_H
 
 extern unsigned long dec_kn_slot_base, dec_kn_slot_size;
+extern int dec_tc_bus;
 
 #endif /* __ASM_DEC_SYSTEM_H */