| 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 |