[U-Boot] Uninterruptible start
Hi,
I want disable the ability to interrupt the boot process.
Setting bootdelay to 0 speeds the start, but if I hit a key at the right (or wrong, depending on point of view) I can still break out into the U-Boot command line.
Any hints/tips on how to do this ?
Thanks, Andrew
============================= Andrew Holt Senior Software Engineer
Email: andrew.holt@electrans.com Phone: 0151 347 2270 Mobile: 07841 340608 Skype: andrewtholt
De Omnibus Dubitandum =============================
Dear "Andrew Holt (SE)",
In message 1697CDB1-F968-4361-8895-C52EC77EC5E7@electrans.com you wrote:
I want disable the ability to interrupt the boot process.
Setting bootdelay to 0 speeds the start, but if I hit a key at the right (or wrong, depending on point of view) I can still break out into the U-Boot command line.
Any hints/tips on how to do this ?
Did your try adding a "#define BOOTDELAY -1" in your board config file?
Best regards,
Wolfgang Denk
Hi,
See below ...
On 4 Jan 2011, at 22:09, Wolfgang Denk wrote:
Dear "Andrew Holt (SE)",
In message 1697CDB1-F968-4361-8895-C52EC77EC5E7@electrans.com you wrote:
I want disable the ability to interrupt the boot process.
Setting bootdelay to 0 speeds the start, but if I hit a key at the right (or wrong, depending on point of view) I can still break out into the U-Boot command line.
Any hints/tips on how to do this ?
Did your try adding a "#define BOOTDELAY -1" in your board config file?
Will this help ?
By the board config file I guess you mean ./board/<vendor>/<device>/board.c ?
Regards, Andrew
Best regards,
Wolfgang Denk
-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de A supercomputer is a machine that runs an endless loop in 2 seconds.
============================= Andrew Holt Senior Software Engineer
Email: andrew.holt@electrans.com Phone: 0151 347 2270 Mobile: 07841 340608 Skype: andrewtholt
De Omnibus Dubitandum =============================
Dear "Andrew Holt (SE)",
In message 9C907C9E-9155-494E-9D4F-6E7C0F0101BB@electrans.com you wrote:
Did your try adding a "#define BOOTDELAY -1" in your board config file?
Will this help ?
Try it...
By the board config file I guess you mean ./board/<vendor>/<device>/board.c ?
No. The board config file is include/configs/<name>.h
Best regards,
Wolfgang Denk
Hi,
In the config file I commented out:
#define CONFIG_ZERO_BOOTDELAY_CHECK /* check for keypress on bootdelay==0 */
And that seems to do it :)
Regards, Andrew
On 5 Jan 2011, at 10:05, Wolfgang Denk wrote:
Dear "Andrew Holt (SE)",
In message 9C907C9E-9155-494E-9D4F-6E7C0F0101BB@electrans.com you wrote:
Did your try adding a "#define BOOTDELAY -1" in your board config file?
Will this help ?
Try it...
By the board config file I guess you mean ./board/<vendor>/<device>/board.c ?
No. The board config file is include/configs/<name>.h
Best regards,
Wolfgang Denk
-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de It is impractical for the standard to attempt to constrain the behavior of code that does not obey the constraints of the standard. - Doug Gwyn
============================= Andrew Holt Senior Software Engineer
Email: andrew.holt@electrans.com Phone: 0151 347 2270 Mobile: 07841 340608 Skype: andrewtholt
De Omnibus Dubitandum =============================
Hi Andrew,
On Tue, Jan 4, 2011 at 1:38 PM, Andrew Holt (SE) andrew.holt@electrans.com wrote:
Hi,
I want disable the ability to interrupt the boot process.
Setting bootdelay to 0 speeds the start, but if I hit a key at the right (or wrong, depending on point of view) I can still break out into the U-Boot command line.
Any hints/tips on how to do this ?
I think you prevent the bootcheck when bootdelay=0 by not defining CONFIG_ZERO_BOOTDELAY_CHECK in the board config.
Best Regards, Ben Gardiner
--- Nanometrics Inc. http://www.nanometrics.ca
participants (3)
-
Andrew Holt (SE) -
Ben Gardiner -
Wolfgang Denk