ide: add "ignore_cable" parameter (take 2)

[firefly-linux-kernel-4.4.55.git] / Documentation / ide / ide.txt

diff --git a/Documentation/ide/ide.txt b/Documentation/ide/ide.txt
index 486c699f4aea4722bb822a7af7ad12053f5c321c..829a618c3e93e216792b6bc42e5f471092ac5b91 100644 (file)
--- a/Documentation/ide/ide.txt
+++ b/Documentation/ide/ide.txt
@@ -224,11 +224,6 @@ Summary of ide driver parameters for kernel command line
 
  "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 +246,16 @@ 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