On 1/21/2014 12:04 PM, Wolfgang Denk wrote:
Dear Scott,
In message 20140121054228.DE99438201D@gemini.denx.de I wrote:
I fear that more IP blocks will follow that have similar requirements, and if we implemnt similar wrappers for each of them separately, we will have a mess of hard to maintain code. For example, it will then be impossible to share common parts of code because driver A uses A_out32() and driver B uses B_out32().
We should rather try and find a generic solution where the same functions can be used by mulltiple drivers which have the same needs.
On second thought, I also think we should avoid solutions where the BE/LE test has to be done for each and every I/O accessor call again and again. We should rather do this just once, and for example set function pointers as needed (hoping that this driver will only be needed after relocation, so we have writable data segment).
Thanks Wolfgang for this suggestion.
As far I understand, you are suggesting to have global structure with function pointer to accessor function depending upon IP's endiannes.. but i afraid, for IFC we do have scenario where these accessor function are used before relocation.
Regards, Prabhakar