Re: [U-Boot] Linux seamless booting

2009-10-13 Thread Kenneth Johansson
On Mon, 2009-10-12 at 15:54 +0200, Fortini Matteo wrote: > Yes, that's what we're currently using, but the problem is a little > broader: I should answer to CAN messages in at most 100-200ms from > powerup, and that can be done in u-boot. if you are in that interval you definitely need to go to

Re: Linux seamless booting

2009-10-12 Thread Fortini Matteo
Yes, that's what we're currently using, but the problem is a little broader: I should answer to CAN messages in at most 100-200ms from powerup, and that can be done in u-boot. However, handing CAN transmission control over to Linux is quite complicated nowadays, since it would involve passing st

Re: Linux seamless booting

2009-10-12 Thread Roberto Guerra
Did you try "setenv bootdelay 0" in uboot? On Mon, Oct 12, 2009 at 7:07 AM, Fortini Matteo wrote: > Hi all, > we've been working on a PPC512x board booting with u-boot + linux 2.6.24.6, > and one major issue for our application is boot time. > > Right now, we went down to less than 6s boot time (

Linux seamless booting

2009-10-12 Thread Fortini Matteo
Hi all, we've been working on a PPC512x board booting with u-boot + linux 2.6.24.6, and one major issue for our application is boot time. Right now, we went down to less than 6s boot time (i.e. time from power off to launch of the user app), even with some drivers installed, i.e.: * CAN b