Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | README file for the Linux g_NCR5380 driver. |
| 2 | |
| 3 | (c) 1993 Drew Eckhard |
| 4 | NCR53c400 extensions (c) 1994,1995,1996 Kevin Lentin |
| 5 | |
| 6 | This file documents the NCR53c400 extensions by Kevin Lentin and some |
| 7 | enhancements to the NCR5380 core. |
| 8 | |
| 9 | This driver supports both NCR5380 and NCR53c400 cards in port or memory |
| 10 | mapped modes. Currently this driver can only support one of those mapping |
| 11 | modes at a time but it does support both of these chips at the same time. |
| 12 | The next release of this driver will support port & memory mapped cards at |
| 13 | the same time. It should be able to handle multiple different cards in the |
| 14 | same machine. |
| 15 | |
| 16 | The drivers/scsi/Makefile has an override in it for the most common |
| 17 | NCR53c400 card, the Trantor T130B in its default configuration: |
| 18 | Port: 0x350 |
| 19 | IRQ : 5 |
| 20 | |
| 21 | The NCR53c400 does not support DMA but it does have Pseudo-DMA which is |
| 22 | supported by the driver. |
| 23 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | This driver provides some information on what it has detected in |
| 25 | /proc/scsi/g_NCR5380/x where x is the scsi card number as detected at boot |
| 26 | time. More info to come in the future. |
| 27 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | This driver works as a module. |
| 29 | When included as a module, parameters can be passed on the insmod/modprobe |
| 30 | command line: |
Ondrej Zary | a8cfbca | 2016-09-27 21:00:25 +0200 | [diff] [blame] | 31 | irq=xx[,...] the interrupt(s) |
| 32 | base=xx[,...] the port or base address(es) (for port or memory mapped, resp.) |
| 33 | card=xx[,...] card type(s): |
| 34 | 0 = NCR5380, |
| 35 | 1 = NCR53C400, |
| 36 | 2 = NCR53C400A, |
| 37 | 3 = Domex Technology Corp 3181E (DTC3181E) |
| 38 | 4 = Hewlett Packard C2502 |
| 39 | |
| 40 | These old-style parameters can support only one card: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | ncr_irq=xx the interrupt |
| 42 | ncr_addr=xx the port or base address (for port or memory |
| 43 | mapped, resp.) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | ncr_5380=1 to set up for a NCR5380 board |
| 45 | ncr_53c400=1 to set up for a NCR53C400 board |
Finn Thain | 9c41ab2 | 2016-03-23 21:10:28 +1100 | [diff] [blame] | 46 | ncr_53c400a=1 to set up for a NCR53C400A board |
| 47 | dtc_3181e=1 to set up for a Domex Technology Corp 3181E board |
| 48 | hp_c2502=1 to set up for a Hewlett Packard C2502 board |
Ondrej Zary | a8cfbca | 2016-09-27 21:00:25 +0200 | [diff] [blame] | 49 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | e.g. |
Ondrej Zary | a8cfbca | 2016-09-27 21:00:25 +0200 | [diff] [blame] | 51 | OLD: modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1 |
| 52 | NEW: modprobe g_NCR5380 irq=5 base=0x350 card=0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | for a port mapped NCR5380 board or |
Ondrej Zary | a8cfbca | 2016-09-27 21:00:25 +0200 | [diff] [blame] | 54 | |
| 55 | OLD: modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1 |
| 56 | NEW: modprobe g_NCR5380 irq=255 base=0xc8000 card=1 |
| 57 | for a memory mapped NCR53C400 board with interrupts disabled or |
| 58 | |
| 59 | NEW: modprobe g_NCR5380 irq=0,7 base=0x240,0x300 card=3,4 |
| 60 | for two cards: DTC3181 (in non-PnP mode) at 0x240 with no IRQ |
| 61 | and HP C2502 at 0x300 with IRQ 7 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | |
| 63 | (255 should be specified for no or DMA interrupt, 254 to autoprobe for an |
| 64 | IRQ line if overridden on the command line.) |
| 65 | |
| 66 | |
| 67 | Kevin Lentin |
| 68 | K.Lentin@cs.monash.edu.au |