On Friday 30 April 2010 10:11:53 Graeme Russ wrote:
I'm looking for information on how to access a Compact Flash card which is memory-mapped (from 0x20001000)
From what I have read, there a 3 address lines (8 addresses) which access IDE registers within the CF chip
My question is, how do I access such a custom address range within Linux?
wouldnt this be a better question posted to lkml and/or the linux-ide lists ?
I'm looking at the 'OF-platform PATA driver' which appears to be what I want (a very basic IDE driver) but I am a bit lost on how to set up a specific base address.
Where should I look for examples of CF cards mapped to specific address spaces?
we do it on the Blackfin quite a bit using the pata platform driver: http://docs.blackfin.uclinux.org/doku.php?id=hw:cards:cf-ide-nand -mike