CompactFlash slot on 5484LITE

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CompactFlash slot on 5484LITE

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JimmyM
Contributor I

Hi,

I'm running Linux on my 5484LITE evaluation board per the document "BSP Targeting the Freescale ColdFire M547x/M548x." using LITB.  I got that much working, but the system must boot of an nfs drive to get it's file system, I'd like to get it off the CompactFlash slot instead.

 

In the driver documentation from the m547x_8x_evb_20080811-final-ltib.iso package, I see several peripheral drivers for the ColdFire, but there isn't one for the CompactFlash.  

 

Does the CompactFlash show up as any of the standard suspects like /dev/hda?

Is there any facility for interrogating CF devices (I'm used to pccardctl)?

 

 

Thanks,

 

-Jim

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pmatil
Contributor I

Hi JimmyM, I have the same board and haven't found any way to use the compact flash apart from lolo. There isn't any documentation on the CPLD code which is connected to the CF card. If you look at the schematic of the fire engine, the CF card is connected to the FlexBus on the Coldfire.

 

As for mass memory devices I see a couple of alternatives. One is the FlexBus and linux's mtd-interface (for flash devices). The second is SPI inteface for SD-cards. Linux kernel has a module for SPI block device but I haven't found a way to use it. 

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