[Intel-gfx] cerryview sd card problem

[Giacomo Comes]

On Thu, Sep 29, 2016 at 09:46:40AM +0300, Adrian Hunter wrote:
> On 29/09/16 09:30, Westerberg, Mika wrote:
> > On Wed, Sep 28, 2016 at 05:50:00PM -0400, Giacomo Comes wrote:
> >> On Mon, Sep 26, 2016 at 12:52:11PM +0300, Westerberg, Mika wrote:
> >>> On Mon, Sep 26, 2016 at 11:57:04AM +0300, Jani Nikula wrote:
> >>>> On Wed, 21 Sep 2016, Giacomo Comes <comes at naic.edu> wrote:
> >>>>> Hi,
> >>>>> I hope this is the appropriate place to ask what follows.
> >>>>> If not please point me to the right place.
> >>>>>
> >>>>> I have a couple of cerryview systems
> >>>>> (Acer Aspire R11 and Intel compute stick STK1AW32SC) on which
> >>>>> I run linux (openSUSE 42.1) with a 4.7 kernel.
> >>>>>
> >>>>> I have a problem though with the sd card reader:
> >>>>> in normal condition the kernel does not see the card reader.
> >>>>> The modules pinctrl-cherryview.ko and sdhci-pci.ko are both 
> >>>>> loaded but the sd device is missing.
> >>>>>
> >>>>> Following the suggestion found here:
> >>>>> https://bugzilla.opensuse.org/show_bug.cgi?id=954532#c24
> >>>>> I "fixed" the problem by adding the module pinctrl-cherryview
> >>>>> in the initrd.
> >>>>>
> >>>>> I was wondering if the necessity to put pinctrl-cherryview in
> >>>>> the initrd is due to a bug in the kernel driver or it is a distro
> >>>>> issue.
> >>>>
> >>>> Hi Giacomo, intel-gfx is about Intel *graphics*. We are mostly clueless
> >>>> about SD cards here. ;)
> >>>>
> >>>> Mika, Andy, could you point Giacomo to the right place please?
> >>>
> >>> If the SD-card card detection is implemented as a GPIO, the GPIO/pinctrl
> >>> driver needs to be there before the SD-card driver is able to detect a
> >>> card being inserted.
> >>
> >> Ok, then it is the distro that have to take care about that.
> >> For the time being I'll manually force pinctrl-cherryview in the initrd.
> >> However, while the Acer Aspire R11 sd card reader works, the
> >> one in the compute stick STK1AW32SC doesn't.
> >> Every time I insert a sd card I see this message in the journal:
> >>   mmc1: error -84 whilst initialising SD card
> >> Tested with kernel 4.8rc7.
> >> Where can I get help about that?
> > 
> > Please provide full dmesg. I've CC'd Adrian who knows lot about the
> > SC-card driver.
> > 
> 
> Also enabling CONFIG_MMC_DEBUG in the kernel config will give a lot more
> information.
> 
> Have different SD cards been tried? Does it work if the SD card is already
> inserted at boot?

The problem exists with different SD cards and also if it is already inserted at boot.

I have enabled CONFIG_MMC_DEBUG in kernel 4.8rc8 and booted the compute stick.
There are a lot of messages about mmc0, that's the eMMC internal storage 
which works. The sd card reader is mmc1. The sd card is inserted at time 10:20:13.
Please see the attached journal log.

Giacomo
-------------- next part --------------
A non-text attachment was scrubbed...
Name: journal-4.8rc8.bz2
Type: application/x-bzip
Size: 56723 bytes
Desc: not available
URL: <https://lists.freedesktop.org/archives/intel-gfx/attachments/20160929/234ec874/attachment-0001.bin>