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Update linux-initialization-7.md

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0xAX 2015-05-03 20:23:52 +06:00
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Initialization/linux-initialization-7.md
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@ -82,14 +82,14 @@ This function check `io_delay_override` variable and overrides I/O delay port if
``` ```
io_delay= [X86] I/O delay method io_delay= [X86] I/O delay method
0x80 0x80
Standard port 0x80 based delay Standard port 0x80 based delay
0xed 0xed
Alternate port 0xed based delay (needed on some systems) Alternate port 0xed based delay (needed on some systems)
udelay udelay
Simple two microseconds delay Simple two microseconds delay
none none
No delay No delay
``` ```
We can see `io_delay` command line parameter setup with the `early_param` macro in the [arch/x86/kernel/io_delay.c](https://github.com/torvalds/linux/blob/master/arch/x86/kernel/io_delay.c) We can see `io_delay` command line parameter setup with the `early_param` macro in the [arch/x86/kernel/io_delay.c](https://github.com/torvalds/linux/blob/master/arch/x86/kernel/io_delay.c)