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Old 11-22-2011, 07:20 AM
Geoff Simmons
 
Default Bug#649567: linux-2.6: Please enable BCMA and BCMA_HOST_PCI

Source: linux-2.6
Version: 3.1.1-1
Severity: wishlist

Hi,

Please consider enabling BCMA ("BCMA support") as a module, along with
BCMA_HOST_PCI ("Support for BCMA on PCI-host bus"). BCMA was explicitly
disabled for linux-2.6 in its subversion repository at revision 17519.

Enabling these would allow the b43 driver to receive BCMA bus support
(B43_BCMA, enabled by default) and operate Broadcom BCM43224 and BCM43225
based PCIe wireless LAN devices; BCM4331 (HT-PHY) support is anticipated for
Linux 3.2.

A consequence of enabling BCMA_HOST_PCI is the addition of device IDs to the
produced bcma module, four of these are claimed by the brcmsmac part of the
brcm80211 staging driver.

Geoff

-- System Information:
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Old 11-22-2011, 01:44 PM
Ben Hutchings
 
Default Bug#649567: linux-2.6: Please enable BCMA and BCMA_HOST_PCI

On Tue, 2011-11-22 at 19:20 +1100, Geoff Simmons wrote:
> Source: linux-2.6
> Version: 3.1.1-1
> Severity: wishlist
>
> Hi,
>
> Please consider enabling BCMA ("BCMA support") as a module, along with
> BCMA_HOST_PCI ("Support for BCMA on PCI-host bus"). BCMA was explicitly
> disabled for linux-2.6 in its subversion repository at revision 17519.
>
> Enabling these would allow the b43 driver to receive BCMA bus support
> (B43_BCMA, enabled by default) and operate Broadcom BCM43224 and BCM43225
> based PCIe wireless LAN devices; BCM4331 (HT-PHY) support is anticipated for
> Linux 3.2.
>
> A consequence of enabling BCMA_HOST_PCI is the addition of device IDs to the
> produced bcma module, four of these are claimed by the brcmsmac part of the
> brcm80211 staging driver.

brcmsmac apparently has better support for these devices, and is moving
out of staging in 3.2.

So whatever we do, we shouldn't enable those device IDs in b43 as well.

Ben.

--
Ben Hutchings
Teamwork is essential - it allows you to blame someone else.
 
Old 11-23-2011, 02:48 AM
Geoff Simmons
 
Default Bug#649567: linux-2.6: Please enable BCMA and BCMA_HOST_PCI

On Tue, Nov 22, 2011 at 02:44:13PM +0000, Ben Hutchings wrote:
> On Tue, 2011-11-22 at 19:20 +1100, Geoff Simmons wrote:
> > Enabling these would allow the b43 driver to receive BCMA bus support
> > (B43_BCMA, enabled by default) and operate Broadcom BCM43224 and
> > BCM43225 based PCIe wireless LAN devices; BCM4331 (HT-PHY) support is
> > anticipated for Linux 3.2.
> >
> > A consequence of enabling BCMA_HOST_PCI is the addition of device IDs to
> > the produced bcma module, four of these are claimed by the brcmsmac part
> > of the brcm80211 staging driver.
>
> brcmsmac apparently has better support for these devices, and is moving
> out of staging in 3.2.
>
> So whatever we do, we shouldn't enable those device IDs in b43 as well.

OK. Could only the BCM4331 device ID (14e4:4331) be referenced in
bcma/host_pci.c as an alternative?

This device is found in the MacBookPro8,1/2/3 and TTBOMK is not currently
supported by brcmsmac (per "recognized PCI IDs" in brcmsmac/mac80211_if.c)
or the out-of-tree broadcom-sta driver.

Geoff



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