Using lolo to write binary to nor flash

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Last Post 01 Apr 2008 12:41 AM by lilja.magnus@gmail.com

Using lolo to write binary to nor flash

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lilja.magnus@gmail.com

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29 Mar 2008 05:34 AM
I'm trying to use lolo load and burn commands to burn a raw binary image to the NOR flash. However, no matter what flash adress I use in the load command the subsequent burn command warns me that the one or more of the first sectors will be erased (supposedly containing lolo + config). Anyone knows the trick to write something to the NOR flash on a i.MX31 Litekit? Version 2.4.0-IMX31_10 0001 *************************************************************** losh> ifconfig sm0 /dev/config losh> load raw 0xa0060000 10000 /tftp/192.168.1.5.zero.bin error: load: failed to open (/tftp/192.168.1.5.zero.bin) losh> load raw 0xa0060000 10000 /tftp/192.168.1.5:zero.bin loading from /tftp/192.168.1.5:zero.bin: loading raw binary to 0xa0060000 (flash) len 00002710: .....done file loaded to ram buffer, destined for flash addr: 0xa0060000 losh> burn region name /dev/flash0 phys_address 0xa0000000 virt_address 0xa0000000 size 0x200000 Nor flash erase: The area (or parts of it) 0x0 - 0x10000 is locked. The area you are trying to write to is locked ********************* WARNING!! ************************* You are about to erase locked areas. They might be needed to boot the card engine. If you erase this block the card engine may not boot. Are you sure you want to do this? ********************* WARNING!! *************************** Do you wish to continue? (y/n)

bvmagaldi

New Member
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30 Mar 2008 03:00 PM
Hi Can you erase NOR Flash or the problem is just on programming ? I guess you'll need a JTAG programmer to do this, because if you corrupt your LoLo on the NOR Flash you will can't restore previous state. Best Regards Bruno V. Magaldi -- LabDev

lilja.magnus@gmail.com

New Member
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31 Mar 2008 06:52 AM
Hi I haven't tried erasing anything. I do have a JTAG programmer so it's possible to restore the board. I just tried loading an image and burning and although I specified 0xA0150000 as the load adress, the burn command erased the flash and burned the image to the first sector (overwriting lolo). /Magnus

richard.laborde@logicpd.com

Basic Member
Posts:247

31 Mar 2008 09:31 AM
mlilja - Please review the Release notes associated with the LoLo 2.4.0 release. They made some changes in how NOR is used. You can now use block addressing. I've erased /dev/flash0 B5 B26 and been able to use a yaffs partition to store files in NOR. It didn't complain about the erase as long as you were above B4. Thanks Richard

lilja.magnus@gmail.com

New Member
Posts:

01 Apr 2008 12:41 AM
Ok, thanks. Got it to work now.

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