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frequency in sandpoint_calibrate_decr

DISCUSSION Sébastien Côté 3 participants 3 messages Apr 11, 2001

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Hi,

In MontaVista's kernel 2.4.0-test2, the frequency in sandpoint_calibrate_decr() is set to 66 Mhz. What frequency is this? The processor, the bus ???

Increasing this speed seems to get rid of my stability problems (at last!), so I'd like to know the real value I should put there.

Thanks,

Sébas..

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

#1 lore raw
Quoted 3 lines · Sébastien Côté

In MontaVista's kernel 2.4.0-test2, the frequency in sandpoint_calibrate_decr() is set to 66 Mhz. What frequency is this? The processor, the bus ???

That's the speed of the processor bus, usually from which all other core clocks are derived. You should be using a newer version of the kernel, at least from FSM Labs BitKeeper. In the source code pipeline is a change of the clock value from MHz to Hz.

Quoted 2 lines

Increasing this speed seems to get rid of my stability problems (at last!), so I'd like to know the real value I should put there.

Eh? On most systems it won't do anything but affect the ability of the kernel to keep time correctly.

	-- Dan

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

#2 lore raw

Yep, I highly recommend upgrading to the latest fsmlabs version.

Mark
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Quoted 11 lines · Dan Malek
Quoted 3 lines · Sébastien Côté

In MontaVista's kernel 2.4.0-test2, the frequency in sandpoint_calibrate_decr() is set to 66 Mhz. What frequency is this? The processor, the bus ???

That's the speed of the processor bus, usually from which all other core clocks are derived. You should be using a newer version of the kernel, at least from FSM Labs BitKeeper. In the source code pipeline is a change of the clock value from MHz to Hz.

Quoted 8 lines
Quoted 2 lines

Increasing this speed seems to get rid of my stability problems (at last!), so I'd like to know the real value I should put there.

Eh? On most systems it won't do anything but affect the ability of the kernel to keep time correctly.

        -- Dan

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/