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Altera_Forum's avatar
Altera_Forum
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19 years ago

EPCS Flash

I am really a newbie to linux in general. I am working on a custom board that has an epcs64 device attached. From within cgi code wrote in "c" I need to access the epcs flash device and be able to ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

You need to edit struct epcs_partitions[] in file linux-2.6.x/drivers/mtd/maps/epcs_map.c .

It divides the epcs to partitions, eg, fpga config, (+) kernel image, jffs2 etc.

The epcs partitions will become device /dev/mtdblock0, /dev/mtdblock1 ...

Then you can access each partition just like a regular file, or actually block device, with file operations such as open(),lseek(),read(),write() and close().

Update the firmware means, write the file.

Please read the wiki pages for details. It will be more clear when you walk through.