[U-Boot] Nand flash R/W,saveenv issue..

[Scott Wood]

On 05/23/2012 12:56 AM, Manukumar wrote:
> 
> u-boot version: u-boot-2010.12
> 
> My OR and BR register values(according to our memory map):
> BR0     0xFF800C21      OR0     0xFF800396
> BR1     0xE8000801      OR1     0xFFFF8074
> BR2     0xE8009001      OR2     0xFFFF8074
> 
> after defining VERBOSE_DEBUG in drivers/mtd/nand/fsl_elbc_nand.c 
> i gave sacveenv command, igot below logs.
> please go through that and resolve asap.

People on this list are generally happy to help as time is available,
but if you need "asap" either contact support at freescale.com (especially
when using Freescale-supplied U-Boot) or another official Freescale FAE
or support contact, or hire someone to look into it.

> skipping bad block =
> 0             

I don't see this exact message in mainline U-Boot, even in old versions.
 And zero being a bad block would be a bad thing -- I suspect things
have gone wrong before the output you provided.


> DEBUG: set_addr: bank=0, ctrl->addr=0xff800000 (0xff800000), index 0,
> pes 14 ps 9                                    
> fsl_elbc_run_command                                                                                                 
> DEBUG: fsl_elbc_run_command: fmr=0000f023 fir=4e000000
> fcr=70000000                                                  
> DEBUG: fsl_elbc_run_command: fbar=00000000 fpar=00000000 fbcr=00000001
> bank=0                                        
> DEBUG: fsl_elbc_run_command: stat=40000001 mdr=00000000
> fmr=0000f020                                                 

This is showing a command timeout (LTESR[FCT]).  What happened with the
NAND earlier in the boot sequence?

-Scott