19 Feb
2013
19 Feb
'13
3:55 p.m.
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.