On 18/02/13 14:54, Tom Rini wrote: > On Mon, Feb 18, 2013 at 02:43:47PM +0000, Mark Jackson wrote: >> On 15/02/13 21:13, Tom Rini wrote: >>> On Thu, Feb 14, 2013 at 03:54:23PM +0000, Mark Jackson wrote: >>> >>>> I'm trying to diagnose why our AM335x based CPU board (based on the >>>> AM335x Starter Kit) can boot SPL and U-Boot from an MMC card, but is >>>> unable to boot from NAND (connected to CS0).
Just a quick update (in case anyone else is in the same boat) ... Looks like the upper data bus (AD[15:8]) needs to have pullups on it, even though you're booting from an 8bit device. I guess the AM335x internal boot code assumes everything is 16bit (even though SYSBOOT[8] is used to configure 8/16bit device). Mark J. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
