In message <1D40077EC04042479FDA552D718E051B010D7528 at ktms3.net.local> you wrote: > > After a soft reset (from linux or bootloader u-boot) the board hangs.
I don't know which Linux kernel you're running, but U-Boot triggers a checkstop reset of the CPU to reboot the system. If this does not restart the board, then there is a hardware problem. > I assume it might be a forgotten pullup- or pull down in our custom > board. > > Any hints which pins I must check? You should probably contact TQ Support with such a question. I doubt that this is a topic for this mailing list. Try asking Andreas Widder, 08153-9308-235, <Andreas.Widder at tqc.de> > By the way, how does linux handle a soft reset? See function m8xx_restart() in "arch/ppc/kernel/m8xx_setup.c"; in our linuxppc_2_4_devel tree the same mechanism as in U-Boot (i. e. checkstop reset) is used. Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de The best things in life are for a fee.