Files
linux/drivers/bcma
Rafał Miłecki 1bea0512c3 bcma: add PCI ID for Foxconn's BCM43142 device
After discovering there are 2 very different 14e4:4365 PCI devices we
made ID tables less generic. Back then we believed there are only 2 such
devices:
1) 14e4:4365 1028:0016 with SoftMAC BCM43142 chipset
2) 14e4:4365 14e4:4365 with FullMAC BCM4366 chipset

>From the recent report it appears there is also 14e4:4365 105b:e092
which should be claimed by bcma. Add back support for it.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=121881
Fixes: 515b399c9a ("bcma: claim only 14e4:4365 PCI Dell card with SoftMAC BCM43142")
Reported-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Cc: Stable <stable@vger.kernel.org> [4.6+]
Tested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-18 22:38:24 +03:00
..
2015-03-03 15:26:38 +02:00
2015-03-03 15:26:38 +02:00
2016-03-23 17:52:10 +02:00
2015-01-29 10:49:28 +02:00

Broadcom introduced new bus as replacement for older SSB. It is based on AMBA,
however from programming point of view there is nothing AMBA specific we use.

Standard AMBA drivers are platform specific, have hardcoded addresses and use
AMBA standard fields like CID and PID.

In case of Broadcom's cards every device consists of:
1) Broadcom specific AMBA device. It is put on AMBA bus, but can not be treated
   as standard AMBA device. Reading it's CID or PID can cause machine lockup.
2) AMBA standard devices called ports or wrappers. They have CIDs (AMBA_CID)
   and PIDs (0x103BB369), but we do not use that info for anything. One of that
   devices is used for managing Broadcom specific core.

Addresses of AMBA devices are not hardcoded in driver and have to be read from
EPROM.

In this situation we decided to introduce separated bus. It can contain up to
16 devices identified by Broadcom specific fields: manufacturer, id, revision
and class.