document clocksources

Document the available clocksources per platform and move clocksource= into
the correct (alpha) location in the file.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Randy Dunlap 2007-05-23 13:58:16 -07:00 committed by Linus Torvalds
parent 53a2731f93
commit 3d6ac98431

View file

@ -396,6 +396,26 @@ and is between 256 and 4096 characters. It is defined in the file
clocksource is not available, it defaults to PIT.
Format: { pit | tsc | cyclone | pmtmr }
clocksource= [GENERIC_TIME] Override the default clocksource
Format: <string>
Override the default clocksource and use the clocksource
with the name specified.
Some clocksource names to choose from, depending on
the platform:
[all] jiffies (this is the base, fallback clocksource)
[ACPI] acpi_pm
[ARM] imx_timer1,OSTS,netx_timer,mpu_timer2,
pxa_timer,timer3,32k_counter,timer0_1
[AVR32] avr32
[IA-32] pit,hpet,tsc,vmi-timer;
scx200_hrt on Geode; cyclone on IBM x440
[MIPS] MIPS
[PARISC] cr16
[S390] tod
[SH] SuperH
[SPARC64] tick
[X86-64] hpet,tsc
code_bytes [IA32] How many bytes of object code to print in an
oops report.
Range: 0 - 8192
@ -1807,10 +1827,6 @@ and is between 256 and 4096 characters. It is defined in the file
time Show timing data prefixed to each printk message line
clocksource= [GENERIC_TIME] Override the default clocksource
Override the default clocksource and use the clocksource
with the name specified.
tipar.timeout= [HW,PPT]
Set communications timeout in tenths of a second
(default 15).