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@xxxxxxxx> 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
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