status of libertas_tf + sdio?
anarsoul at gmail.com
Wed Dec 11 03:10:50 EST 2013
On Tue, Dec 10, 2013 at 5:27 AM, James Cameron <quozl at laptop.org> wrote:
> On Mon, Dec 09, 2013 at 12:38:28PM +0300, Vasily Khoruzhick wrote:
>> On Mon, Dec 9, 2013 at 7:18 AM, James Cameron <quozl at laptop.org> wrote:
>> > On Fri, Dec 06, 2013 at 01:40:00PM +0300, Vasily Khoruzhick wrote:
>> >> Out of curiosity,
>> >> Does anyone know if it's possible to get thin firmware for 8686 with
>> >> SPI interface?
>> > What happens when you try?
>> How? There's no tf available for 8686 with SPI interface.
> How do you know that? Are you saying that SPI support was removed
> from firmware during the conversion from fat to thin?
Err, there's no lbtf_spi.bin file.
>> > How are you downloading firmware over SPI?
>> See drivers/net/wireless/libertas/if_spi.c, but it's for fat
> What happens if you send the thin firmware instead?
I have no thin firmware for 8686 with SPI interface
>> > I'm not aware of a second stage firmware download helper specific to
>> > the SPI mode.
>> What's a second stage firmware download helper?
> File sd8686_helper.bin, we use it in Open Firmware with SDIO 8686 on
> OLPC XO.
> For SPI, which we don't use, I see if_spi.c uses gspi8686_v9_helper.bin
> I was wrong; I am now aware of a second stage firmware downloader
> helper specific to the SPI mode. I hadn't looked before.
>> > I think it is not possible without firmware engineering.
>> Yeah, just hoped that Marvell already did it. It's a pity that
>> firmware source code isn't available :(
> Cozybit did the thin firmware, if I recall correctly.
Do you think it makes sense to contact them?
> James Cameron
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