Return-path: Received: from mms2.broadcom.com ([216.31.210.18]:1825 "EHLO mms2.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750873Ab3C0MHF convert rfc822-to-8bit (ORCPT ); Wed, 27 Mar 2013 08:07:05 -0400 Message-ID: <5152E0DD.3000001@broadcom.com> (sfid-20130327_130710_346189_6310CDED) Date: Wed, 27 Mar 2013 13:06:53 +0100 From: "Arend van Spriel" MIME-Version: 1.0 To: "John Talbut" cc: =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= , "Hauke Mehrtens" , linux-wireless@vger.kernel.org Subject: Re: brcmsmac in kernel driver on a Samsung NC110 References: <51514F1B.1080207@dpets.co.uk> <5151639F.4010700@broadcom.com> <51516BC2.5010004@dpets.co.uk> <515173A4.7030607@broadcom.com> <515179C5.50406@dpets.co.uk> <51517E28.5000303@broadcom.com> <515182C6.5030305@dpets.co.uk> <51518682.7060503@broadcom.com> <515189C6.7070003@dpets.co.uk> <51518E14.3050500@broadcom.com> <5151EC49.9030109@dpets.co.uk> <5151F088.2040408@hauke-m.de> <5151FB85.5080007@dpets.co.uk> <51521A8A.6060900@broadcom.com> <5152C8DB.4080105@dpets.co.uk> <5152CDDB.4010504@dpets.co.uk> <5152D670.3000707@broadcom.com> In-Reply-To: <5152D670.3000707@broadcom.com> Content-Type: text/plain; charset=utf-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On 03/27/2013 12:22 PM, Arend van Spriel wrote: > On 03/27/2013 11:45 AM, John Talbut wrote: >> >> >> On 27/03/13 10:33, Rafał Miłecki wrote: >>> 2013/3/27 John Talbut : >>>> On 27/03/13 07:46, Rafał Miłecki wrote: >>>>> 2013/3/26 Arend van Spriel : >>>>>> On 03/26/2013 08:48 PM, John Talbut wrote: >>>>>>> echo "14e4 4357" > /sys/bus/pci/drivers/bcma-pci-bridge/new_id >>>>>>> bash: /sys/bus/pci/drivers/bcma-pci-bridge/new_id: No such file or directory >>>>>> >>>>>> This could mean you do not have CONFIG_BCMA_HOST_PCI=y in your .config >>>>> >>>>> Exactly. Make sure you have CONFIG_BCMA_HOST_PCI=y and that your >>>>> host_pci.c is not modified/hacked/whatever. >>>>> >>>>> You can compare it with >>>>> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/bcma/host_pci.c >>>>> bcma_pci_bridge_tbl. >>>>> >>>> OK, thanks, I have recompiled the kernel with CONFIG_BCMA_HOST_PCI=y and >>>> we have some progress. >>>> >>>> ls /sys/bus/bcma/devices >>>> bcma0:0 >>>> >>>> lspci -d 14e4: -v >>>> now has a line: >>>> Kernel driver in use: bcma-pci-bridge >>>> >>>> host_pci.c is the same as torvalds. >>>> >>>> However, kernel log includes: >>>> brcmsmac bcma0:0: firmware: agent aborted loading brcm/bcm43xx-0.fw (not >>>> found?) >>>> ieee80211 phy0: brcmsmac: Failed to find firmware usually in >>>> /lib/firmware/brcm >>>> brcmsmac: brcms_bcma_probe: brcms_attach failed! >>> >>> "Failed to find firmware". You didn't tell us if you have firmware installed. >>> ls /lib/firmware/brcm/ >>> http://wireless.kernel.org/en/users/Drivers/brcm80211#Firmware_installation >>> >> Sorry, meant to do that: >> ls /lib/firmware/brcm/ >> bcm43xx-0.fw bcm43xx_hdr-0.fw >> To confirm my suspicion could you try following (as root): /sys/bus/bcma/drivers/brcmsmac # echo bcma0:0 > bind This should retrigger brcmsmac to get firmware and use the device. Regards, Arend > > Do you have a ramdisk during boot? I suspect brcmsmac does request the > firmware before the root filesystem is mounted. > > Gr. AvS >