MuRata WiFi Module with Marvell 88w8686

Mon Apr 14 11:12:03 EDT 2008

On Mon, 2008-04-14 at 17:12 +0800, claud_yu wrote:
> Hi , 
> 
> Currently I use wi2wi W2SW0001, I send Murata module
> back. I still try to port the libertas driver to mx31.
> Wi2Wi provide a SD card development card on wi2wi
> website. I also try another 88w8686 driver from
> project moblin (http://www.moblin.org/). The driver
> should based on marvell SDIO driver. But the driver
> still have some problem while firmware download.

It would be useful to try the moblin driver just to see if it works, so
we can figure out why and fix the upstream driver if there's a problem
with it.

We spent a _lot_ of time getting the original 838x Marvell driver
suitable for upstream, and the moblin driver has none of that.  I also
spent a lot of time getting the upstream driver working correctly with
Wireless Extensions, while the moblin driver (last I knew) didn't have
any of that either...  I'm not quite sure why moblin decided to use the
vendor driver rather than improving the upstream one.

Dan

> Claud Yu 
> --- "Harvey, Timothy" <tharvey at irobot.com> 說：
> 
> > Claud,
> > 
> > I'm investigating using an 88W8686 based module on
> > an i.MX31 as well.
> > Currently I'm still looking for what modules are
> > available.  Did you
> > investigate others?  I know of the following:
> >   - Zcomax XG-182M (~$30/ea vol)
> >   - Embedded Works EWWMGMR05-SDIO (?/ea vol)
> > 
> > Do you know what SyChip's volume pricing is on the
> > module your using?
> > 
> > What kernel version are you using (2.6.22.6 from
> > IMX31ADS?)?  What dev
> > kit are you using?
> > 
> > I imagine you need to get the i.MX31's SDIO host
> > controller to interface
> > with the libertas driver - how is that process
> > going?
> > 
> > Thanks for any info,
> > 
> > Tim
> > 
> > > Hi !!
> > > 
> > > It's my first time to this mail-list. I have a
> > driver
> > > initialize problem with our platform with Marvell
> > > 88w8686. Our platform is Freescale iMX31 and use
> > SDIO
> > > connect to WiFi module with Marvell 88w8686. The
> > > module is made by MuRata. The SD interface work
> > with
> > > SD/SDHC/MMC memory card. And  I try to port
> > libertas
> > > driver from linux kernel 2.6.24. First is
> > > identification problem. The libertas driver use SD
> > CIS
> > > to identify  which type of wifi chip ( 88w8686 or
> > > 88w8385). But Murata module CIS information show
> > CIS
> > > data below.
> > >
> >
> --------------------------------------------------------------------
> > > : TPLMID_MANF = 0x02df
> > > 
> > > : TPLMID_CARD = 0x9103
> > > 
> > > : TPLFID_FUNCTION = 0x0c
> > > 
> > > : TPLFE_FN0_BLK_SIZE = 256
> > > 
> > > : max speed = 25000 kbps
> > > 
> > > : TPLFID_FUNCTION = 0x0c
> > > 
> > > : TPLFE_FUNCTION_INFO = 0x01
> > > 
> > > : TPLFE_STD_IO_REV = 0x10
> > > 
> > > : TPLFE_CARD_PSN = 0x00000000
> > > 
> > > : TPLFE_CSA_SIZE = 0x00000000
> > > 
> > > : TPLFE_CSA_PROPERTY = 0x00
> > > 
> > > : TPLFE_MAX_BLK_SIZE = 256
> > > 
> > > : TPLFE_OCR = 0x00000000
> > > 
> > > : operating current (min/avg/max) = 0/0/0 mA
> > > 
> > > : standby current (min/avg/max) = 0/0/0 mA
> > > 
> > > : minimum data bandwidth = 0 KB/sec
> > > 
> > > : optimum data bandwidth = 0 KB/sec
> > >
> >
> --------------------------------------------------------------------
> > > And the content didn't contain keyword to identify
> > the
> > > type of wifi chip ( "802.11 SDIO ID: %x" or "ID:
> > %x"
> > > from if_sdio.c). I try to force the driver to
> > identify
> > > the module as 88w8686 with set the varible mode=
> > 0xb. 
> > > And I download Marvell 88w8686 sdio driver 8.73.7
> > and
> > > 9.70.3. And get from firmware and helper binary
> > code
> > > from Marvell driver. After the SDIO module
> > insertion ,
> > > the kernel show libertas debug message below
> > (enable
> > > DEBUG in driver and configure udev and firmware
> > > agent).
> > >
> >
> --------------------------------------------------------------------
> > > 
> > > mmc0: new SDIO card at address 0001
> > > 
> > > libertas enter: if_sdio_probe():865
> > > 
> > > libertas thread: class = 0x7, vendor = 0x2DF,
> > device =
> > > 0x9103, model = 0xB, ioport = 0x10000
> > > 
> > > libertas enter: if_sdio_prog_firmware():662
> > > 
> > > libertas enter: if_sdio_prog_helper():416
> > > 
> > > libertas thread: waiting for helper to boot...
> > > 
> > > libertas leave: if_sdio_prog_helper():516, ret 0
> > > 
> > > libertas enter: if_sdio_prog_real():532
> > > 
> > > libertas thread: firmware helper signalled error
> > > 
> > > libertas: failed to load firmware
> > > 
> > > libertas leave: if_sdio_prog_real():652, ret -5
> > > 
> > > libertas leave: if_sdio_prog_firmware():688, ret
> > -5
> > > 
> > > libertas leave: if_sdio_probe():985, ret -5
> > > 
> > > libertas_sdio: probe of mmc0:0001:1 failed with
> > error
> > > -5
> > > 
> > > / #
> > >
> >
> --------------------------------------------------------------------
> > > 
> > > The message show the helper download success and
> > get
> > > one error from helper during download the
> > firmware. 
> > > 
> > > I have some question about the libertas driver and
> > > MuRata module. First , the CIS information should
> > be
> > > in 88w8686. Why the CIS of MuRata module is
> > different
> > > ? And should the binary code (fimrware )download
> > from
> > > Marvell website ? 
> > > 
> > > Claud Yu
> > > 
> > 
> > 
> > 
> > IMPORTANT NOTICE: iRobot's Burlington, MA
> > headquarters is MOVING on April 25, 2008 to 8 Crosby
> > Drive, Bedford, MA 01730.
> > 
> > _______________________________________________
> > libertas-dev mailing list
> > libertas-dev at lists.infradead.org
> >
> http://lists.infradead.org/mailman/listinfo/libertas-dev
> > 
> 
> 
> 
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