On 17 January 2011 11:56, Michael Büsch [off-list ref] wrote:

On Mon, 2011-01-17 at 11:46 +0100, Jonas Gorski wrote:

quoted

a) Merge the HND/AI code into the current SSB code, or

b) add the missing code for SoCs to brcm80211 and replace the SSB code with it.

Why can't we keep those two platforms separated?
Is there really a lot of shared code between SSB and HND/AI?

Yes, as far as I understand the AI bus behaves mostly like a SSB bus
except for places like enabling/disabling cores. E.g. the AI bus also
has a common core, which has a bit for telling whether its a SSB or AI
bus, and has the mostly the same registers as the SSB common cores (so
most driver_chipcommon_* stuff also applies for the AI bus).

It's true that there's currently a lot of device functionality built
into ssb. Like pci bridge, mips core, extif, etc...
If you take all that code out, you're probably not left with anything.

That's because most shared code isn't in brcm80211, but only found in
the SDKs for the SoCs.

So why do we need to replace or merge SSB in the first place? Can't
it co-exist with HND/AI?

It probably can, but then the SSB code must be at least made AI aware
so it doesn't try to attach itself if it finds one. Also I don't know
if it is a good idea to let arch-specific code depend on code in
staging.

Jonas