Hi Pawel,
Is there a way to skip the motherboard BIOS too? I know there is a way to autoboot from bootmon, which is well described here:
https://wiki.linaro.org/PawelMoll/BootingVEMadeEasy
But, i am looking for something, which can even run the "reboot" command on BIOS.
-- viresh
Hi Viresh,
Pawel's on holiday this week. I'm no expert in this area, but I ran your question past one of our platform guys. Does the following help?
A "reboot" causes the motherboard micro to reset and do all its stuff like reprogramming the FPGA and then reset the core which then runs boot monitor.
Briefly hit the red push button on the back panel (the one next to the sdcard slot) to have the motherboard micro issue a "reset" to the ARM core. This will just start Boot Monitor again.
Regards,
Bernie
-----Original Message----- From: linaro-dev-bounces@lists.linaro.org [mailto:linaro-dev- bounces@lists.linaro.org] On Behalf Of viresh kumar Sent: 03 October 2012 07:52 To: Pawel Moll Cc: linaro-dev@lists.linaro.org Subject: Query: Vexpress quick boot
Hi Pawel,
Is there a way to skip the motherboard BIOS too? I know there is a way to autoboot from bootmon, which is well described here:
https://wiki.linaro.org/PawelMoll/BootingVEMadeEasy
But, i am looking for something, which can even run the "reboot" command on BIOS.
-- viresh
linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
-- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
On 4 October 2012 14:48, Bernard Ogden Bernard.Ogden@arm.com wrote:
Pawel's on holiday this week. I'm no expert in this area, but I ran your question past one of our platform guys. Does the following help?
Thanks for helping :)
A "reboot" causes the motherboard micro to reset and do all its stuff like reprogramming the FPGA and then reset the core which then runs boot monitor.
Briefly hit the red push button on the back panel (the one next to the sdcard slot) to have the motherboard micro issue a "reset" to the ARM core. This will just start Boot Monitor again.
I tried that earlier, but my board just hangs. Doesn't start BIOS or bootmon. Whereas, running reboot from Linux does reboot it properly.
I am using, Linaro-devel rootfs...
-- viresh
No problem, I'm just playing piggy-in-the-middle :)
Does the Red button work when the core is just running Boot Monitor?
If not then it may be a hardware problem and I'll ping the platform folks again. Otherwise it's more likely to be something going on in Linux-land and we'll need to wait for Pawel.
-----Original Message----- From: Viresh Kumar [mailto:viresh.kumar@linaro.org] Sent: 04 October 2012 10:35 To: Bernard Ogden Cc: Pawel Moll; linaro-dev@lists.linaro.org Subject: Re: Query: Vexpress quick boot
On 4 October 2012 14:48, Bernard Ogden Bernard.Ogden@arm.com wrote:
Pawel's on holiday this week. I'm no expert in this area, but I ran
your question past one of our platform guys. Does the following help?
Thanks for helping :)
A "reboot" causes the motherboard micro to reset and do all its stuff
like reprogramming the FPGA and then reset the core which then runs boot monitor.
Briefly hit the red push button on the back panel (the one next to
the sdcard slot) to have the motherboard micro issue a "reset" to the ARM core. This will just start Boot Monitor again.
I tried that earlier, but my board just hangs. Doesn't start BIOS or bootmon. Whereas, running reboot from Linux does reboot it properly.
I am using, Linaro-devel rootfs...
-- viresh
-- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
On 4 October 2012 16:18, Bernard Ogden Bernard.Ogden@arm.com wrote:
Does the Red button work when the core is just running Boot Monitor?
No... It has no effect during that time.
-- viresh
On Thu, 2012-10-04 at 15:04 +0530, Viresh Kumar wrote:
On 4 October 2012 14:48, Bernard Ogden Bernard.Ogden@arm.com wrote:
Pawel's on holiday this week. I'm no expert in this area, but I ran your question past one of our platform guys. Does the following help?
Thanks for helping :)
A "reboot" causes the motherboard micro to reset and do all its stuff like reprogramming the FPGA and then reset the core which then runs boot monitor.
Briefly hit the red push button on the back panel (the one next to the sdcard slot) to have the motherboard micro issue a "reset" to the ARM core. This will just start Boot Monitor again.
I tried that earlier, but my board just hangs. Doesn't start BIOS or bootmon. Whereas, running reboot from Linux does reboot it properly.
Just tried it, and that's how my TC2 behaves as well. Whereas on A9 it does reset the CoreTile CPU and the bootmonitor runs again.
I should also note that even when booting from the motherboard bootloader by typing "reboot" that my TC2 has a 50/50 chance of hanging at the stage just before the bootmonitor banner should appear.
On 4 October 2012 17:18, Jon Medhurst (Tixy) tixy@linaro.org wrote:
Just tried it, and that's how my TC2 behaves as well. Whereas on A9 it does reset the CoreTile CPU and the bootmonitor runs again.
Good to know, i am not alone. :)
I should also note that even when booting from the motherboard bootloader by typing "reboot" that my TC2 has a 50/50 chance of hanging at the stage just before the bootmonitor banner should appear.
I haven't noticed it much.. Normally i press the black button followed by right one... So don't use reboot from bootloader much.
Please check the config.txt file on the motherboard micro SDCard and make sure the following entry is set:
ASSERTNPOR: TRUE ;External resets assert nPOR
(config.txt should be in the root of the filesystem.)
-----Original Message----- From: Viresh Kumar [mailto:viresh.kumar@linaro.org] Sent: 04 October 2012 14:25 To: Jon Medhurst (Tixy) Cc: Bernard Ogden; linaro-dev@lists.linaro.org; Pawel Moll Subject: Re: Query: Vexpress quick boot
On 4 October 2012 17:18, Jon Medhurst (Tixy) tixy@linaro.org wrote:
Just tried it, and that's how my TC2 behaves as well. Whereas on A9
it
does reset the CoreTile CPU and the bootmonitor runs again.
Good to know, i am not alone. :)
I should also note that even when booting from the motherboard bootloader by typing "reboot" that my TC2 has a 50/50 chance of
hanging
at the stage just before the bootmonitor banner should appear.
I haven't noticed it much.. Normally i press the black button followed by right one... So don't use reboot from bootloader much.
-- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
On Thu, 2012-10-04 at 14:46 +0100, Bernard Ogden wrote:
Please check the config.txt file on the motherboard micro SDCard and make sure the following entry is set:
ASSERTNPOR: TRUE ;External resets assert nPOR
(config.txt should be in the root of the filesystem.)
It is on my board.
-- Tixy
-----Original Message----- From: Viresh Kumar [mailto:viresh.kumar@linaro.org] Sent: 04 October 2012 14:25 To: Jon Medhurst (Tixy) Cc: Bernard Ogden; linaro-dev@lists.linaro.org; Pawel Moll Subject: Re: Query: Vexpress quick boot
On 4 October 2012 17:18, Jon Medhurst (Tixy) tixy@linaro.org wrote:
Just tried it, and that's how my TC2 behaves as well. Whereas on A9
it
does reset the CoreTile CPU and the bootmonitor runs again.
Good to know, i am not alone. :)
I should also note that even when booting from the motherboard bootloader by typing "reboot" that my TC2 has a 50/50 chance of
hanging
at the stage just before the bootmonitor banner should appear.
I haven't noticed it much.. Normally i press the black button followed by right one... So don't use reboot from bootloader much.
-- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
I'm not understanding this email thread at all... perhaps because I've read it from the top ;-)
I thought from the first email that Viresh was trying to get the board to boot up completely from when he applies power to the board.... in that case, editing /media/VEMSD/config.txt and changing "AUTORUN" to "TRUE" means that when you power on the board, it will automatically power on the core tile (ie. it's the equivalent of pressing the red button after the motherboard boots).
When the Core Tile boots, the motherboard's command line moves to COM1, with COM0 now belonging to the Core Tile.
On COM1, you can issue the commands "reboot", which is like pressing the red button while the CoreTile is running, or "shutdown", which powers off the CoreTile and leaves you at the Cmd> prompt on COM0.
Hope that helps, even if it wasn't what you were asking for ;-)
On 4 October 2012 15:12, Jon Medhurst (Tixy) tixy@linaro.org wrote:
On Thu, 2012-10-04 at 14:46 +0100, Bernard Ogden wrote:
Please check the config.txt file on the motherboard micro SDCard and make sure the following entry is set:
ASSERTNPOR: TRUE ;External resets assert nPOR
(config.txt should be in the root of the filesystem.)
It is on my board.
-- Tixy
-----Original Message----- From: Viresh Kumar [mailto:viresh.kumar@linaro.org] Sent: 04 October 2012 14:25 To: Jon Medhurst (Tixy) Cc: Bernard Ogden; linaro-dev@lists.linaro.org; Pawel Moll Subject: Re: Query: Vexpress quick boot
On 4 October 2012 17:18, Jon Medhurst (Tixy) tixy@linaro.org wrote:
Just tried it, and that's how my TC2 behaves as well. Whereas on A9
it
does reset the CoreTile CPU and the bootmonitor runs again.
Good to know, i am not alone. :)
I should also note that even when booting from the motherboard bootloader by typing "reboot" that my TC2 has a 50/50 chance of
hanging
at the stage just before the bootmonitor banner should appear.
I haven't noticed it much.. Normally i press the black button followed by right one... So don't use reboot from bootloader much.
-- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
On 4 October 2012 21:26, Ryan Harkin ryan.harkin@linaro.org wrote:
I'm not understanding this email thread at all... perhaps because I've read it from the top ;-)
I thought from the first email that Viresh was trying to get the board to boot up completely from when he applies power to the board.... in that case, editing /media/VEMSD/config.txt and changing "AUTORUN" to "TRUE" means that when you power on the board, it will automatically power on the core tile (ie. it's the equivalent of pressing the red button after the motherboard boots).
Bingo!! Exactly what i wanted. Updated here:
Glad you got what you wanted :)
Looks like something odd is going on with the red button, though. I'll let the platforms folk know.
Regards,
Bernie
On 5 Oct 2012, at 04:43, "Viresh Kumar" viresh.kumar@linaro.org wrote:
On 4 October 2012 21:26, Ryan Harkin ryan.harkin@linaro.org wrote:
I'm not understanding this email thread at all... perhaps because I've read it from the top ;-)
I thought from the first email that Viresh was trying to get the board to boot up completely from when he applies power to the board.... in that case, editing /media/VEMSD/config.txt and changing "AUTORUN" to "TRUE" means that when you power on the board, it will automatically power on the core tile (ie. it's the equivalent of pressing the red button after the motherboard boots).
Bingo!! Exactly what i wanted. Updated here:
-- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
On 4 October 2012 19:16, Bernard Ogden Bernard.Ogden@arm.com wrote:
Please check the config.txt file on the motherboard micro SDCard and make sure the following entry is set:
ASSERTNPOR: TRUE ;External resets assert nPOR
It was false earlier. Changed it to TRUE, still unable to reboot after pressing red button. But when i press the red button multiple times quickly.. then boot monitor reboots.. But linux hangs.
-- viresh
-
Bernard Ogden -
Jon Medhurst (Tixy) -
Ryan Harkin -
Viresh Kumar -
viresh kumar