MuRata WiFi Module with Marvell 88w8686

claud_yu claud_yu at yahoo.com.tw
Wed May 7 02:26:10 EDT 2008


Sorry !! iMX31 must disable 4bit mode with libertas driver.

    mmc->max_phys_segs = NR_SG;
 -       mmc->caps = MMC_CAP_4_BIT_DATA ;
 +        mmc->max_hw_segs = NR_SG;
 +
 +  //     mmc->caps = MMC_CAP_4_BIT_DATA;
 +
 +        mmc->max_blk_size = (1<<11);       
 +        mmc->max_blk_count = (1<<16);      
 +        mmc->max_req_size = PAGE_SIZE;
 +        mmc->max_seg_size = PAGE_SIZE;
 +


--- 08/5/7 (星期三),claud_yu <claud_yu at yahoo.com.tw> 寫道:

> 寄件者: claud_yu <claud_yu at yahoo.com.tw>
> 主旨: RE: MuRata WiFi Module with Marvell 88w8686
> 收件者: "Harvey, Tim" <tharvey at irobot.com>
> 副本: libertas-dev at lists.infradead.org
> 日期: 2008 5 7 星期三 下午 2:18
> Following are the details of modification for iMX31.
> 1. Back port libertas from 2.6.24 to 2.6.22.
> 2. iMX31 BSP(2.6.22) have SDIO functionality which back
> port from 2.6.24 or ...
> You can download the code from
> http://www.bitshrine.org/gpp/ or download newest BSP from
> freescale website.
> 3.  patch for if_sdio.c. The modification force the IO be
> multiple of block size.
> --------------------
>          * goes suicidal.
>          */
>         chunk = size;
> -       if ((chunk > card->func->cur_blksize) ||
> (chunk > 512)) {
> +       //if ((chunk > card->func->cur_blksize) ||
> (chunk > 512)) {
>                 chunk = (chunk +
> card->func->cur_blksize - 1) /
>                         card->func->cur_blksize *
> card->func->cur_blksize;
> -       }
> +       //} 
> +       
> 
>         ret = sdio_readsb(card->func, card->buffer,
> card->ioport, chunk);
>         if (ret)
>                 goto out;
> 
> 
>          * goes suicidal.
>          */
>         chunk = size;
> -       if ((chunk > card->func->cur_blksize) ||
> (chunk > 512)) {
> +       //if ((chunk > card->func->cur_blksize) ||
> (chunk > 512)) {
>                 chunk = (chunk +
> card->func->cur_blksize - 1) /
>                         card->func->cur_blksize *
> card->func->cur_blksize;
> -       }
> +       //} 
> +       
> 
>         ret = sdio_readsb(card->func, card->buffer,
> card->ioport, chunk);
>         if (ret)
>                 goto out;
> 
> --------------------
> 4. Patch for iMX31 MMC driver  mxc_mmc.c .
> -------------------
> @@ -1146,7 +1146,15 @@
>         mmc->ocr_avail |= MMC_VDD_31_32;
>  
>         mmc->max_phys_segs = NR_SG;
> -       mmc->caps = MMC_CAP_4_BIT_DATA ;
> +        mmc->max_hw_segs = NR_SG;
> +
> +       mmc->caps = MMC_CAP_4_BIT_DATA;
> +
> +        mmc->max_blk_size = (1<<11);       
> +        mmc->max_blk_count = (1<<16);      
> +        mmc->max_req_size = PAGE_SIZE;
> +        mmc->max_seg_size = PAGE_SIZE;
> +
> ------------------
> 
> Claud Yu
> 
> 
> --- 08/5/7 (星期三),Harvey, Tim
> <tharvey at irobot.com> 寫道:
> 
> > 寄件者: Harvey, Tim <tharvey at irobot.com>
> > 主旨: RE: MuRata WiFi Module with Marvell 88w8686
> > 收件者: "claud_yu"
> <claud_yu at yahoo.com.tw>
> > 日期: 2008 5 7 星期三 上午 8:49
> > Claud,
> > 
> > Can you give me a list of what you had to do to get
> the
> > Libertas to talk to the i.MX31's SDHC?    I'm
> > guessing something like:
> >   - port libertas driver down to 2.6.22 (or use
> > wireless-compat package)
> >   - port 2.6.24 SDIO layer down to 2.6.22?
> > Or
> >   - port Freescale i.MX31 MMC driver to be compatible
> with
> > what libertas/if_sdio.c needs?
> > 
> > Any patches you made to the Freescale LTIB (or other)
> BSP
> > would gladly be appreciated.
> > 
> > Thanks,
> > 
> > Tim
> > 
> > > -----Original Message-----
> > > From: claud_yu [mailto:claud_yu at yahoo.com.tw] 
> > > Sent: Monday, April 14, 2008 7:07 PM
> > > To: Harvey, Tim
> > > Subject: RE: MuRata WiFi Module with Marvell
> 88w8686 
> > > 
> > > Hi ,
> > > 
> > >  The module had no any response after I insert it
> into
> > > x86 notebook with SDIO interface( IBM X60).Maybe
> some 
> > > hardware damage occur during experiment.
> > > The EVM could use external antenna or chip
> antenna.
> > > Our Murata use chip antenna and Wi2Wi EVM use
> external
> > 
> > > antenna. You must check the Wi2Wi EVM spec.
> > > 
> > > Claud Yu
> > > 
> > > --- "Harvey, Tim"
> <tharvey at irobot.com>
> > 說:
> > > 
> > > > Claud,
> > > > 
> > > > Thanks for the info!  What was the reason
> you
> > returned the muRata 
> > > > module?  Do either the muRata or Wi2Wi
> modules
> > allow for an 
> > > external 
> > > > antenna?
> > > > 
> > > > Tim
> > > > 
> > > > > -----Original Message-----
> > > > > From: claud_yu
> > [mailto:claud_yu at yahoo.com.tw]
> > > > > Sent: Monday, April 14, 2008 2:13 AM
> > > > > To: Harvey, Tim;
> > libertas-dev at lists.infradead.org
> > > > > Subject: Re: MuRata WiFi Module with
> Marvell
> > > > 88w8686
> > > > > 
> > > > > 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.
> > > > > 
> > > > > Claud Yu
> > > > > --- "Harvey, Timothy"
> > <tharvey at irobot.com> 挲ㄩ
> > > > > 
> > > > > > 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
> > > > 
> > > === message truncated ===
> > > 
> > > 
> > > 
> > >       
> > >
> >
> ______________________________________________________________
> > > ________________________________________
> > >
> >
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> > > 
> > 
> > 
> > 
> > IMPORTANT NOTICE: iRobot's Burlington, MA
> headquarters
> > has moved to 8 Crosby Drive, Bedford, MA 01730.
> 
> 
>      
> _________________________________________________________________________________________________________
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> 
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      _________________________________________________________________________________________________________
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