[U-Boot] Mixed 8/16 bits NOR FLASH support (was: [PATCH V2 3/3] Add support for the LaCie ED Mini V2 board)

Wolfgang Denk
2009-12-02T09:38:19Z

Dear Stefan Roese,

In message <200912021015.34183.sr@denx.de> you wrote:
>
> Maybe. I don't remember ever using an mixed-mode chip (8 & 16bit interface) in
> 8bit mode.

Indeed. I wonder which arguments the hardware designer has to defend
such an implementation.

> I have to admit, that I'm not totally sure about this problem. Perhaps it
> would be best, if you would try to "fix" to the CFI code. To verify, if your
> theory is correct. And then post the resulting fix to the list, so that we can
> discuss it here.

Agreed. Eventually the READ ID could / should be combined with the
8/16 bit test, at least for this specific device ID.

Um... what does the Linux kernel code do in this case?

Best regards,

Wolfgang Denk

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