Re: [PATCH 1/2] mmc: core: enable CMD19 tuning for DDR50 mode

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Dec 14, 2015 at 9:46 AM, Yang, York <weijuny@xxxxxxxxxxxxxxxx> wrote:
> Hi, Carlo
>         In 9faac7b95, tuning for DDR50 is enabled in mmc_sd_init_uhs_card(), so only SD card is affected.
>         This is based on the SD spec version 3.01.
>         mmc_sdio_init_uhs_card() is untouched. I don't know who add the code into mmc_sdio_init_uhs_card() and you may have a check on your side.

Hi Yang,
sorry for not being clear. Modifying mmc_sdio_init_uhs_card() was only
a test I did to check whether that could fix the issue, but it didn't.

Right now the situation is:
- In the latest master with commit 9faac7b95 WiFi is broken on the
ASUS X205TA (bcm43341)
- Reverting 9faac7b95 makes it working fine again

My conclusion is that issuing the CMD19 is basically breaking WiFi on
this platform.

-- 
Carlo Caione
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux