> I've looked at the datasheet for the 88F6281, and the GPIO registers
> look fairly similar with Armada 370/XP, except that:
>
> * On 88F6281, there are two GPIO banks, while on Armada 370/XP it's a
> continuous range of registers that control the GPIOs. But it can be
> assimilated as one bank handling more than 32 GPIOs. So shouldn't be
> a big problem to handle.
The number of banks varies. Orion5x has one, Dove has three, etc.
>
> * The Armada 370/XP have additional set/clear registers that allow to
> modify the GPIO states without having to do a read/mask/write
> sequence, which is nicer on SMP. I guess we can handle that as a
> variant inside the driver without too much problem.
>
> Marvell has given me a 88F6282 eval board, so I guess they are fine
> with me spending some time ensuring that the new code works properly on
> the previous platforms, especially in this case where the amount of
> work does not seem to be enormous to keep the compatibility.
That is good to hear.
Thanks
Andrew
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