Thanks Ben and Jerry I have fixed the my flash issued.
Is there any way to test the EEPROM through Uboot code?
Thanks in advance.
Regards, Yasotha Balan R
-----Original Message----- From: Jerry Van Baren [mailto:gerald.vanbaren@smiths-aerospace.com] Sent: Friday, September 14, 2007 9:05 PM To: Yasothabalan Ramaswamy-TLS,Chennai Cc: Ben Warren; u-boot-users@lists.sourceforge.net Subject: Re: [U-Boot-Users] Configuring Spansion flash
Yasothabalan Ramaswamy-TLS,Chennai wrote:
So how shall I proceed next Ben. Where and in which file this configuration is done?
Whenever I trace out which flash is detected, it always gets detects
as
FLASH_UNKNOWN.
It would appear you have something misconfigured in your hardware or u-boot software. We know basically zero about either, so you will have to work the problem with only generic hints from the list.
Start by verifying the chip select to your flash part is being driven properly.
Once you are sure your hardware is driving the flash OK, use u-boot memory read and write commands to send the CFI manufacturer ID commands.
When you figure out how to do CFI commands manually so that the flash responds, your misconfiguration of hardware/software should be very obvious.
The following message thread goes into more details, simply substitute u-boot memory read/write commands for BDI configuration read/write commands. http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/31501/focus=3173 0
Good luck, gvb
DISCLAIMER: -----------------------------------------------------------------------------------------------------------------------
The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any mail and attachments please check them for viruses and defect.
-----------------------------------------------------------------------------------------------------------------------