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[TC] TURBOchannel support for the DECstation

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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>
This commit is contained in:
Maciej W. Rozycki
2007-02-05 16:28:26 -08:00
committed by Ralf Baechle
parent 56a47da1b9
commit 33cf45b90e
5 changed files with 103 additions and 1 deletions
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3
arch/mips/dec/prom/identify.c
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@@ -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);