Re: poor performance with W2CBW003 (Marvell 8686)

Andreas Kemnade
2012-06-14T06:50:34Z

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Hi,

On Wed, 13 Jun 2012 11:39:08 -0700 (PDT)
hong zhang <henryzhang62@yahoo.com> wrote:

> You have to identify problem caused by
> SDIO host controller or wifi driver.
>
> If driver is working well in x86 with Roch SDIO, that means wifi driver is ok.
>
> You have to find out
> 1. SDIO interface if using Interrupt or PIO

Hmm, very interesting point, of course, there are interrupts. But after reading
the commit logs in the patched 2.6.32 kernel I see there is a patch enabling
asynchronous *sdio* interrupts. That looks clearly suspicious.

> 2. 1 bit or 4 bit

Hmm, 4bit.

Greetings
Andreas Kemnade

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