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- README file for the Linux g_NCR5380 driver.
- (c) 1993 Drew Eckhard
- NCR53c400 extensions (c) 1994,1995,1996 Kevin Lentin
- This file documents the NCR53c400 extensions by Kevin Lentin and some
- enhancements to the NCR5380 core.
- This driver supports both NCR5380 and NCR53c400 cards in port or memory
- mapped modes. Currently this driver can only support one of those mapping
- modes at a time but it does support both of these chips at the same time.
- The next release of this driver will support port & memory mapped cards at
- the same time. It should be able to handle multiple different cards in the
- same machine.
- The drivers/scsi/Makefile has an override in it for the most common
- NCR53c400 card, the Trantor T130B in its default configuration:
- Port: 0x350
- IRQ : 5
- The NCR53c400 does not support DMA but it does have Pseudo-DMA which is
- supported by the driver.
- This driver provides some information on what it has detected in
- /proc/scsi/g_NCR5380/x where x is the scsi card number as detected at boot
- time. More info to come in the future.
- This driver works as a module.
- When included as a module, parameters can be passed on the insmod/modprobe
- command line:
- irq=xx[,...] the interrupt(s)
- base=xx[,...] the port or base address(es) (for port or memory mapped, resp.)
- card=xx[,...] card type(s):
- 0 = NCR5380,
- 1 = NCR53C400,
- 2 = NCR53C400A,
- 3 = Domex Technology Corp 3181E (DTC3181E)
- 4 = Hewlett Packard C2502
- These old-style parameters can support only one card:
- ncr_irq=xx the interrupt
- ncr_addr=xx the port or base address (for port or memory
- mapped, resp.)
- ncr_5380=1 to set up for a NCR5380 board
- ncr_53c400=1 to set up for a NCR53C400 board
- ncr_53c400a=1 to set up for a NCR53C400A board
- dtc_3181e=1 to set up for a Domex Technology Corp 3181E board
- hp_c2502=1 to set up for a Hewlett Packard C2502 board
- e.g.
- OLD: modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1
- NEW: modprobe g_NCR5380 irq=5 base=0x350 card=0
- for a port mapped NCR5380 board or
- OLD: modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1
- NEW: modprobe g_NCR5380 irq=255 base=0xc8000 card=1
- for a memory mapped NCR53C400 board with interrupts disabled or
- NEW: modprobe g_NCR5380 irq=0,7 base=0x240,0x300 card=3,4
- for two cards: DTC3181 (in non-PnP mode) at 0x240 with no IRQ
- and HP C2502 at 0x300 with IRQ 7
- (255 should be specified for no or DMA interrupt, 254 to autoprobe for an
- IRQ line if overridden on the command line.)
- Kevin Lentin
- K.Lentin@cs.monash.edu.au
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