[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, 3 insertions, 0 deletions

diff --git a/arch/mips/dec/prom/identify.c b/arch/mips/dec/prom/identify.c
index 81d5e878ddce..c4e3c1ea0d48 100644
--- a/arch/mips/dec/prom/identify.c
+++ b/arch/mips/dec/prom/identify.c
@@ -88,6 +88,7 @@ static inline void prom_init_kn02(void)
 {
         dec_kn_slot_base = KN02_SLOT_BASE;
         dec_kn_slot_size = KN02_SLOT_SIZE;
+        dec_tc_bus = 1;
 
         dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + KN02_RTC);
 }
@@ -96,6 +97,7 @@ static inline void prom_init_kn02xa(void)
 {
         dec_kn_slot_base = KN02XA_SLOT_BASE;
         dec_kn_slot_size = IOASIC_SLOT_SIZE;
+        dec_tc_bus = 1;
 
         ioasic_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_IOCTL);
         dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_TOY);
@@ -105,6 +107,7 @@ static inline void prom_init_kn03(void)
 {
         dec_kn_slot_base = KN03_SLOT_BASE;
         dec_kn_slot_size = IOASIC_SLOT_SIZE;
+        dec_tc_bus = 1;
 
         ioasic_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_IOCTL);
         dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_TOY);