[U-Boot] Flash Not Erased Problem with M29W128GL

Ramesh K Khokhani ramesh.khokhani at igate.com
Mon Jan 21 04:15:43 CET 2013


Hi Angelo,

Thank you so much for replying me.

Now, I get the file from u-boot site as you have directed.

In our hardware flash is connected as 16-Bit Data Port means straight D0/D15 of flash to D0/D15 of CPU.

No I haven't used TIMEOUT config field any way.

I have tried erase command but cant run erase command. I will try it today proper.

Second thing I have tried my custom code in cfi_flash.c file to write data in flash in write_buff(). So it works but it can not wite first 15-20 byte and then after it writes all bytes.

Thanks & Regards,
Ramesh

-----Original Message-----
From: Angelo Dureghello [mailto:sysamfw at gmail.com] 
Sent: Sunday, January 20, 2013 7:59 PM
To: u-boot at lists.denx.de
Cc: Ramesh K Khokhani
Subject: Re: [U-Boot] Flash Not Erased Problem with M29W128GL

Dear Ramesh,

i am using last u-boot form git / master.

You can get the file fome there, just go to u-boot site,
custodians, click "master", selct tree and click on the file.

Still, some questions:

How is the flash connected, as 8 or 16 bit data port ? Is the
flash connected stirght D0/D15 to D0/D15 of the cpu ?

Did you try to add the TIMEOUT config field, as i posted ?

Can you try to use the command "erase" and dump to see if
the flash can get erased ?

Regards,
Angelo

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