On 08:38 Thu 13 Mar , Sascha Hauer wrote: > Hi Sean, > > On Thu, Mar 13, 2014 at 10:04:35AM +0800, Sean Cross wrote: > > Hi, > > > > I've finally managed to get U-Boot's SPL to configure DDR3 and load > > barebox off of a FAT partition on an i.MX6DL. I also have a barebox > > build with most features turned on, and I'm running into a number of > > problems. barebox is able to load a zImage off of the FAT partition, > > set up ATAGs, and jump to it. So I have the basics done. But there are > > lots of little things that aren't working. > > > > When I boot without an Ethernet cable plugged in, the "timeout" command > > takes a very long time to complete. It generally freezes at "Hit any > > key to stop autoboot: 3" and tends to ignore input for around ten > > seconds. How can I prevent this from happening, short of compiling out > > FEC support? > > Are you trying to start from network without a cable plugged in? When I > start from network without a cable I get: > > running /env/bin/init... > > Hit m for menu or any other key to stop autoboot: 1 > blspec: blspec_scan_directory: net loader/entries > booting net > dhcp failed: Network is down > dhcp: Network is down > I get the same issue on Calao USB keys this is quite anoying can we fix it Best Regards, J. > It indeed takes some seconds until we are sure that the link is down. > That timeout could be reduced, but we must give the phy some time to > bring up the link. > > Or does this happen when you are not trying to boot from network at all? > That shouldn't happen. If it does, maybe some automount command triggers > network accesses. > > > > > The "usb" command just hangs the system. It should at least detect the > > other ASIX Ethernet port. I have &usbh1 configured identically to > > sabrelite. Is there something else I need to configure? > > This usually means the phys are not configured correctly. Are you > probing from devicetree? > > > > > The "usbserial" command returns "usbserial: No such device". Like usb, > > I have &usbotg configured the same as sabrelite. It doesn't work with > > dr_mode set to either "host" or "otg". > > Ok, from devicetree it seems. I can say that there shouldn't be any bugs > in the common usb code preventing your devices from being probed. It > normally boils down to some usbmisc register setting being wrong. > > > > > How can I pass the correct ram size to Linux? The comment on > > barebox_arm_entry() notes that "[memsize] doesn't necessarily have to be > > the full SDRAM", and indeed I notice that barebox hangs if I pass it the > > full 3840 MB passed from U-Boot. So I'm currently limiting it to 1GB in > > my start_imx6dl_kosagi_novena_6dl routine. Do I need to somehow add the > > remainder as another bank somewhere? Or modify the bank size in my > > kosagi_novena_init() in board.c? > > If you probe from devicetree the correct amount of memory is taken from > there. If that doesn't work (dynamic amount of memory for example) you > can set the memory in the devicetree to 0 and call arm_add_mem_device > instead. > > > > > Finally, I was unable to get barebox to boot with MMU support. For some > > reason it kept trying to allocate memory just outside of allocated RAM. > > This is related to the wrong memory setup. That should be solved when > you get that straight. > > > Is there any benefit to running with the MMU enabled on i.MX6? > > Definitely, yes. barebox runs much faster with MMU enabled. > > Sascha > > -- > Pengutronix e.K. | | > Industrial Linux Solutions | http://www.pengutronix.de/ | > Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | > Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | > > _______________________________________________ > barebox mailing list > barebox@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/barebox _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
