Hi Steve, 

The newest DVEVM software release 1.10.01 on the TI site has a new
u-boot loader (only compiled for NOR flash, but with sources) that does
fix the SW3-4 problem. It looks as if the boot loader is the only
update. If you do a diff against the u-boot sources of your working
version you should see the differences - when I checked it seemed they
mainly changed the initialization for the internal DSP power control. It
was not properly activated in the V1.10 boot loader so they gave the
temporary SW3-4 workaround to set the DSP for self-boot, which as a
side-effect activates the DSP power domain.

By the way:
1. Does anyone have sources for the first bootloader in NAND (the max 14
kB loader)? We only have a .bin file.
2. Does anyone know the proper U-boot configuration for NAND flash
booting?

Regards,
Arie de Muijnck


________________________________________
From: Steve Yeh
Sent: Thursday, January 25, 2007 08:12
To: Bob Simning
Cc: [email protected]
Subject: Re: u-boot-594 on nand can not work

Hi, 

Here is our current status:

We can use elder u-boot to flash 1.10 uImge into NAND FLASH.
but can not use the latest u-boot, even we rebuild it with different
compiler option.

Even we can boot from NAND, our DSP algorithm can not work. 

Our embedded department people told me this is because we have to set
SWITCH3-4 to OFF in order to boot from NAND.

TI FAE seems mail us an diver to solve this, but we do not know how to
use it.

Any suggestion?
  
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