Re: brcmsmac and BCM943224HMB (AXI?)

On 05/14/2011 04:55 PM, Gottfried Haider wrote:

Dear Arend,

I am trying to get a BCM943224HMB module (a Half-Mini Card) [1]
working with the brcmsmac driver.

Broadcom's webpage mentions that the module includes a BCM43224 core
(in addition to a BCM2070 Bluetooth one), but the device is not
getting recognized by the driver in -rc7.

Without understanding too much about AXI, I tried both your
implementation and Rafał's (the latter with the addition of my PCI
id). Both did not make the device magically work with brcmsmac, but
with Rafał's code I got the following output, telling me that the
device indeed makes use of AXI:

There are two modules for this support. One from Rafal called bcma.ko 
and I did one called brcmaxi.ko. I did not get combination brcmsmac/bcma 
working yet. So the brcmsmac which is in the linux-next tree does not 
need either brcmaxi nor bcma. That is work in progress.

[    3.651668] bcma-pci-bridge 0000:04:00.0: PCI INT A ->  GSI 17
(level, low) ->  IRQ 17
[    3.651686] bcma-pci-bridge 0000:04:00.0: setting latency timer to 64
[    3.651818] bcma: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800,
rev 0x22, class 0x0)
[    3.651841] bcma: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812,
rev 0x17, class 0x0)
[    3.651890] bcma: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev
0x0F, class 0x0)
[    3.651986] bcma: Switched to core: 0x800
[    3.651998] bcma: Found rev 6 PMU (capabilities 0x108C2606)
[    3.652020] bcma: Switched to core: 0x820
[    3.710315] bcma: Bus registered


Since you mentioned that you tested brcmaxi with brcmsmac, can you
tell me what's missing to get the device working? Is this only a
question of adding some device IDs to brcmsmac, or does the driver
need some major changes to talk to the core through bcma/brcmaxi? (Or
something completely different?)

As said brcmaxi and bcma are not needed for the current brcmsmac.

thanks for your time,
Gottfried

[1] 14e4:0576, got this with a ThinkPad x120e .. the closed driver
detects the device, but insists that it's disabled by a radio switch
(tested on -rc7)

Let me ask around over here whether adding the device id will work.

Gr. AvS

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