when is overriding idebus safe?
The kernel always says:
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
at boot time. How would I know if it's safe to say idebus=66? The documentation is fairly vague on this.
Thanks,
Dave
Signature · 6 lines
David M. Meyer [email protected] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] Please read the FAQ at http://www.tux.org/lkml/
I get:
ide: Assuming 40 MHz system bus speed for PIO modes; override with idebus=xx
??? you all say it's 33 hardcoded...
-----BEGIN GEEK CODE BLOCK-----
Version: 3.12+custom(^=href;C-style-comments)
GO/S dx@ s--: a--->---- C++ UL++++ P--- L++$(-^lang) E----/joe W+(++) N? o K? w-(+$) O+>+++ M-- V- PS+++@ PE(--) Y+ PGP t+ 5? X+ R+ !tv!---- b++++* DI- D+ G(>++) e(^age) h! r(-) y--(!y+) /* lang=NASM, GW-BASIC, C */ ------END GEEK CODE BLOCK------
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected]
Please read the FAQ at http://www.tux.org/lkml/
Because you do not have IDE_PCI enabled.
Quoted 14 lines · mirabilos
I get:
ide: Assuming 40 MHz system bus speed for PIO modes; override with idebus=xx
??? you all say it's 33 hardcoded...
-----BEGIN GEEK CODE BLOCK-----
Version: 3.12+custom(^=href;C-style-comments)
GO/S dx@ s--: a--->---- C++ UL++++ P--- L++$(-^lang) E----/joe W+(++) N? o K? w-(+$) O+>+++ M-- V- PS+++@ PE(--) Y+ PGP t+ 5? X+ R+ !tv!---- b++++* DI- D+ G(>++) e(^age) h! r(-) y--(!y+) /* lang=NASM, GW-BASIC, C */ ------END GEEK CODE BLOCK------
Quoted 5 lines
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected]
Please read the FAQ at http://www.tux.org/lkml/
Andre Hedrick
Linux ATA Development
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected]
Please read the FAQ at http://www.tux.org/lkml/
Quoted 6 lines · On Wed, 24 Jan 2001 [email protected] wrote:
The kernel always says:
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
at boot time. How would I know if it's safe to say idebus=66? The documentation is fairly vague on this.
When the manual for your mainboard states that clock settings for setting up your CPU creates a change in the normal idebus=33MHz of any other value, then you are probablely safe. Since all 32-bit PCI busses run at 33MHz, as last thought and reported, it should not be needed to change. If I recall the idebus=XX primary use was for VLB/ISA/EISA systems, but I have been wrong before.
Chers,
Andre Hedrick
Linux ATA Development
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected]
Please read the FAQ at http://www.tux.org/lkml/
Quoted 6 lines · Andre Hedrick
When the manual for your mainboard states that clock settings for setting up your CPU creates a change in the normal idebus=33MHz of any other value, then you are probablely safe. Since all 32-bit PCI busses run at 33MHz, as last thought and reported, it should not be needed to change. If I recall the idebus=XX primary use was for VLB/ISA/EISA systems, but I have been wrong before.
My system bus is overclocked to 40MHz. Should I use idebus=44MHz now or should I stick with the default? How does the value given affect kernel behaviour?
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected]
Please read the FAQ at http://www.tux.org/lkml/