ide: mark "idebus=" kernel parameter as obsoleted (take 2)

[linux-2.6-block.git] / Documentation / ide / ide.txt

diff --git a/Documentation/ide/ide.txt b/Documentation/ide/ide.txt
index 486c699f4aea4722bb822a7af7ad12053f5c321c..eb4d3b7a6214f94a6c1183e1574e093e6e391ed5 100644 (file)
--- a/Documentation/ide/ide.txt
+++ b/Documentation/ide/ide.txt
@@ -186,8 +186,6 @@ Summary of ide driver parameters for kernel command line
 
  "hdx="  is recognized for all "x" from "a" to "u", such as "hdc".
 
- "idex=" is recognized for all "x" from "0" to "9", such as "ide1".
-
  "hdx=noprobe"         : drive may be present, but do not probe for it
 
  "hdx=none"            : drive is NOT present, ignore cmos and do not probe
@@ -207,28 +205,6 @@ Summary of ide driver parameters for kernel command line
 
  "hdx=nodma"           : disallow DMA
 
- "idebus=xx"           : inform IDE driver of VESA/PCI bus speed in MHz,
-                         where "xx" is between 20 and 66 inclusive,
-                         used when tuning chipset PIO modes.
-                         For PCI bus, 25 is correct for a P75 system,
-                         30 is correct for P90,P120,P180 systems,
-                         and 33 is used for P100,P133,P166 systems.
-                         If in doubt, use idebus=33 for PCI.
-                         As for VLB, it is safest to not specify it.
-                         Bigger values are safer than smaller ones.
-
- "idex=serialize"      : do not overlap operations on idex. Please note
-                         that you will have to specify this option for
-                         both the respective primary and secondary channel
-                         to take effect.
-
- "idex=reset"          : reset interface after probe
-
- "idex=ata66"          : informs the interface that it has an 80c cable
-                         for chipsets that are ATA-66 capable, but the
-                         ability to bit test for detection is currently
-                         unknown.
-
  "ide=doubler"         : probe/support IDE doublers on Amiga
 
 There may be more options than shown -- use the source, Luke!
@@ -251,6 +227,16 @@ are detected automatically).
 You also need to use "probe" kernel parameter for ide-4drives driver
 (support for IDE generic chipset with four drives on one port).
 
+To force ignoring cable detection (this should be needed only if you're using
+short 40-wires cable which cannot be automatically detected - if this is not
+a case please report it as a bug instead) use "ignore_cable" kernel parameter:
+
+* "ide_core.ignore_cable=[interface_number]" boot option if IDE is built-in
+  (i.e. "ide_core.ignore_cable=1" to force ignoring cable for "ide1")
+
+* "ignore_cable=[interface_number]" module parameter (for ide_core module)
+  if IDE is compiled as module
+
 ================================================================================
 
 Some Terminology