[U-Boot-Users] Atmel DataFlash hooks.

Peter.Pearse peter.pearse at arm.com
Fri Jan 26 10:42:54 CET 2007

 I bottom post

> -----Original Message-----
> From: glikely at gmail.com [mailto:glikely at gmail.com] On Behalf 
> Of Grant Likely
> Sent: 26 January 2007 08:45
> To: uboot
> Cc: Peter Pearse; Peter Menzebach
> Subject: Atmel DataFlash hooks.
> Issue: CONFIG_HAS_DATAFLASH hooks are invasive
> Background: Atmel DataFlash is a serial FLASH device with an 
> SPI interface.  There is code in u-boot that pretends that it 
> is bus-addressable.
> Possible solutions:
> 1. Move DataFlash support over to the block device 
> infrastructure and add commands for direct manipulation of 
> block devices.  This assumes that it makes sense to look at a 
> DataFlash device as just like any other block device.

My first reaction is.

If it walks like a block device & quacks like a block device
- it's a block device.

However I've forwarded to Hamid (author of dataflash.c)
&& Rick (AT91RM9200DK maintainer) for their opinions.

In the absence of any evidence otherwise, I just assume Atmel wanted to show

how neatly DataFlash can be treated as bus addressable.....



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