Hello, On Thu, Jan 26, 2012 at 09:23:32PM +0100, Igor wrote: > Hi, > > I 'm trying to port Barebox (2012.01.0) and make it successfully booting > Linux > on a custom board based on iMX27. > I could successfully configure, compile and use Barebox on my MX27ADS board, > making it work both as a second stage bootloader (after Redboot) > and as the first stage bootloader (booting the system from flash). > > I modified the sources to adapt the low level init functions to my HW > that has half the ram of the ev.board and a different flash > (a Spansion S29GLxxx, same size of the one in the eva board). > With my customized version of Barebox I can: > - boot Linux (zImage, 2.6.32.3) using Barebox as a second stage bootloader > (after Redboot) > - start from Flash as a first stage bootloader, correctly initializing the > system. > > In the second case, indeed, the system seems to be fully working: > I can read and write the flash partitions, I can complete successfully > the ram test with "mtest", but... I cannot boot Linux! > > I just get: > "uncompressing linux... done booting the kernel" > and then it's silence... > > architecture_type is 846 (it's the one of the mx27ads). > It should be right considering that I used both for the kernel and for the > bootloader > the configuration for imx27ads. > > I also tryed to make it boot a more recent kernel version; > I compiled a 3.0.8 with early_printk anabled to get more info about > the initial crash/problem but... Nothing! > I didn't get nothing after "... done booting the kernel" also with the 3.0.8 > with low level debug and early_printk enabled. Do you have configured the right output port for low level debug? Did you pass the earlyprintk kernel parameter? Do you have a jtag debugger? > What's the reason for the boot failure? Probably not a bootloader problem. Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
