Thread (24 messages) 24 messages, 6 authors, 2007-10-05

Re: [spi-devel-general] [PATCH 7/7] [POWERPC][SPI] spi_mpc83xx: allow use on MPC85xx

From: Kumar Gala <hidden>
Date: 2007-09-26 04:00:48
Also in: linux-spi

On Sep 25, 2007, at 11:58 AM, David Brownell wrote:
quoted
quoted
quoted
-	depends on SPI_MASTER && PPC_83xx && EXPERIMENTAL
+	depends on SPI_MASTER && (PPC_83xx || PPC_85xx) && EXPERIMENTAL
Should that really be just PPC_83xx || QUICC_ENGINE?
Well, I thought about that. By now I'm unsure if every QE
implementation will be compatible with further ones.
How many other QE implementations exist?  Is that sort of
gratuitous breakage something Freescale makes a habit of?
We try not to, but HW people are know to do evil things to keep us  
software guys employed.
quoted
	So far
I've tested this driver on MPC8323 and MPC8568. If we'll see
more and more compatible QE SPI controllers, of course we
may just do || QUICC_ENGINE.

PPC_83xx || PPC_85xx
PPC_83xx || QUICC_ENGINE

Today first option saves us four bytes. ;-)
It'd be good if someone would look at the relevant docs.

I'll wait for a PPC signoff before I forward this for
merge with SPI stuff...
I'm still in favor of making it PPC_83xx || QUICC_ENGINE.

So if when we have 87xx with QUICC_ENGINE we don't have to tweak it  
again, but its a minor thing.

- k
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