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-rw-r--r--Documentation/kernel-parameters.txt12
1 files changed, 7 insertions, 5 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 9e6056058425..b427b7c0e5d0 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -795,12 +795,14 @@ and is between 256 and 4096 characters. It is defined in the file
then look in the higher range.
io_delay= [X86-32,X86-64] I/O delay method
- standard
- Standard port 0x80 delay
- alternate
- Alternate port 0xed delay
+ 0x80
+ Standard port 0x80 based delay
+ 0xed
+ Alternate port 0xed based delay (needed on some systems)
udelay
- Simple two microsecond delay
+ Simple two microseconds delay
+ none
+ No delay
io7= [HW] IO7 for Marvel based alpha systems
See comment before marvel_specify_io7 in