On Thu, Jun 18, 2009 at 01:42:54PM +0200, Manuel Sahm wrote:
Guennadi Liakhovetski lg@denx.de 18.06.2009 13:23 >>>
On Thu, 18 Jun 2009, Manuel Sahm wrote:
Hello,
Please, do not top-post.
Also, please use quote markers and trim what you're not immediately replying to.
Hello, all is inside the NAND flash,
0x00000 First Level Bootloader (which loads the UBoot from 0x20000 to RAM and execute it)
I guess this is something other than u-boot's own NAND loader -- that would complicate any effort to use u-boot's NAND loader to load the environment.
0x20000 UBoot 0x60000 UBootEnviroment 0x80000 UBoot Enviroment Rendundant
So have a look at /lib_arm/board.c The function nand_init() and env_relocate() sre called too late for the "silent" flag.
I tried to place the functions nand_init() and env_relocate() into the function env_init(), but that crashes...?
The full NAND subsystem will not work before relocation.
Here are some options (not of equal desireability): - Switch to using u-boot's NAND loader, and use Guennadi's patch. - Extend your external NAND loader to do something similar to Guennadi's patch. - Use code similar to the NAND loader to fetch the environment into a cache-locked buffer (or search through it as you read it). - Embed your environment into the u-boot image. - Make the console unconditionally silent until after the environment is read from NAND normally. - Put NOR on your board. :-)
-Scott