path: root/Documentation/scsi/ncr53c7xx.txt
diff options
authorAdrian Bunk <bunk@kernel.org>2007-10-24 18:26:22 +0200
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-01-11 18:22:30 -0600
commitf37a7238d379bc2befbcb08a03de03f4f446131c (patch)
tree87180607d9e5cd9abd7c086c17bf34d04cc18476 /Documentation/scsi/ncr53c7xx.txt
parentf10ab66fa564fd624b04fe207ccae206df85efbf (diff)
[SCSI] 53c7xx: fix removal fallout
This patch does some additional cleanups after the 53c7xx removal. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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-README for WarpEngine/A4000T/A4091 SCSI kernels.
-Use the following options to disable options in the SCSI driver.
-Using amiboot for example.....
-To disable Synchronous Negotiation....
- amiboot -k kernel 53c7xx=nosync:0
-To disable Disconnection....
- amiboot -k kernel 53c7xx=nodisconnect:0
-To disable certain SCSI devices...
- amiboot -k kernel 53c7xx=validids:0x3F
- this allows only device ID's 0,1,2,3,4 and 5 for linux to handle.
- (this is a bitmasked field - i.e. each bit represents a SCSI ID)
-These commands work on a per controller basis and use the option 'next' to
-move to the next controller in the system.
- amiboot -k kernel 53c7xx=nodisconnect:0,next,nosync:0
- this uses No Disconnection on the first controller and Asynchronous
- SCSI on the second controller.
-Known Issues:
-Two devices are known not to function with the default settings of using
-synchronous SCSI. These are the Archive Viper 150 Tape Drive and the
-SyQuest SQ555 removeable hard drive. When using these devices on a controller
-use the 'nosync:0' option.
-Please try these options and post any problems/successes to me.
-Alan Hourihane <alanh@fairlite.demon.co.uk>