| 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. |
| |
| If the default configuration does not work for you, you can use the kernel |
| command lines (eg using the lilo append command): |
| ncr5380=port,irq,dma |
| ncr53c400=port,irq |
| or |
| ncr5380=base,irq,dma |
| ncr53c400=base,irq |
| |
| The driver does not probe for any addresses or ports other than those in |
| the OVERRIDE or given to the kernel as above. |
| |
| 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. |
| |
| When NCR53c400 support is compiled in, BIOS parameters will be returned by |
| the driver (the raw 5380 driver does not and I don't plan to fiddle with |
| it!). |
| |
| This driver works as a module. |
| When included as a module, parameters can be passed on the insmod/modprobe |
| command line: |
| ncr_irq=xx the interrupt |
| ncr_addr=xx the port or base address (for port or memory |
| mapped, resp.) |
| ncr_dma=xx the DMA |
| ncr_5380=1 to set up for a NCR5380 board |
| ncr_53c400=1 to set up for a NCR53C400 board |
| e.g. |
| modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1 |
| for a port mapped NCR5380 board or |
| modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1 |
| for a memory mapped NCR53C400 board with interrupts disabled. |
| |
| (255 should be specified for no or DMA interrupt, 254 to autoprobe for an |
| IRQ line if overridden on the command line.) |
| |
| |
| Kevin Lentin |
| [email protected] |
