On Mon, 2015-04-20 at 19:28 +0200, Arend van Spriel wrote: > On 04/20/15 13:50, Jonas Gorski wrote: > > Hi, > > > > On Mon, Apr 20, 2015 at 1:29 PM, Rafał Miłecki<zaj...@gmail.com> wrote: > >> On 20 April 2015 at 11:27, Arend van Spriel<ar...@broadcom.com> wrote: > >>>> Following an "nvram erase" none of the needed<key, value> pairs remain > >>>> in nvram. So we probably can't use nvram in a reliable way to create the > >>>> wireless configuration. > >>> > >>> > >>> So why do "nvram erase"? The assumption that it is not needed because you > >>> are running an OpenWRT image is wrong or at least only partially true, ie. > >>> for the user-space settings. > >> > >> I agree with Arend. If you're are erasing sensitive wireless info from > >> your device, expect problems. The same will happen if you'll overwrite > >> standard Broadcom PCI device SPROM (which contains the same kind of > >> data). > > > > At least on older bcm47xx/MIPS devices nvram was also used for (user > > changable) configuration like lan ip address, and consequently erasing > > nvram caused CFE to restore the default values, which should include > > the right wifi configuration values. Several devices even do so when > > holding down reset for a long time at power up*. Does this not happen > > anymore with bcm53xx/ARM? Are user values now stored in a different > > partition? > > Hi Jonas, > > I was hoping that the firmware specific wifi config would indeed be in a > separate MTD partition. However, Hante has been looking at the MTD > partitions and none match up with what CFE dumps upon 'nvram show'. So > we are going through our CFE code, but no clues (yet) whether R8000 > specific changes have been made. There is also an spiflash device > configured in DT but the bcm53xxspiflash driver does not seem to be > working for it.
Yes, that's what I see too. Last time I looked I got the impression the device used isn't known to the kernel. > > Regards, > Arend > _______________________________________________ > openwrt-devel mailing list > openwrt-devel@lists.openwrt.org > https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel