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Documentation / scsi / g_NCR5380.txt




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Based on kernel version 4.9. Page generated on 2016-12-21 14:37 EST.

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	
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	
28	This driver works as a module.
29	When included as a module, parameters can be passed on the insmod/modprobe
30	command line:
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:
41	  ncr_irq=xx   the interrupt
42	  ncr_addr=xx  the port or base address (for port or memory
43	               mapped, resp.)
44	  ncr_5380=1   to set up for a NCR5380 board
45	  ncr_53c400=1 to set up for a NCR53C400 board
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
49	
50	e.g.
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
53	  for a port mapped NCR5380 board or
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
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
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