On Wed, Jan 04, 2012 at 04:01:07PM +0100, Matthieu CASTET wrote:
> Hi,
>
> our controller set "Max Block Length" to 3 (4096 byte), but the linux driver
> ignore this value [1].
>
> Is there any reason to do that .
The reason is, sd host controller spec defines 3 as reserved, not 4096.
> Or it is code that was written with an older sdhci spec, and we can ignore this
> check today.
The current sdhci driver follows v3 spec, is the v4 spec out that
defined this bit?
>
>
>
> Matthieu
>
> PS : please keep me in CC.
>
> [1]
> if (mmc->max_blk_size >= 3) {
> pr_warning("%s: Invalid maximum block size, "
> "assuming 512 bytes\n", mmc_hostname(mmc));
> mmc->max_blk_size = 0;
> }
> --
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