activation of SPI on fedora26 with a raspberry3

[christophe pages]

Hello,
I try to activate the spi on my raspberry3 using a fedora 26.
I tried these options:
device_tree_param=spi=on
dtoverlay=spi-bcm2708

I use this kernel:
4.12.5-300.fc26.armv7hl

I see that the support in kernel seems already inside:
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y


But I never see the devices /dev/spi* appearing.
I can't see any messages regarding spi in dmesg.

I tested with a raspbian and I see them correctly.
I think I miss somethiing.
Could you help.
Thanks.

[Peter Robinson]

On Sat, Sep 16, 2017 at 1:33 PM, christophe pages <pageschrist(a)gmail.com&gt; wrote:
>  Hello,
>  I try to activate the spi on my raspberry3 using a fedora 26.
>  I tried these options:
>  device_tree_param=spi=on
>  dtoverlay=spi-bcm2708 
Did you add that to config.txt? That way of doing it is specific to
Rasspian, the driver in Fedora is the upstream driver which is
spi-bcm2835aux and you'll need to either edit the dtb to enable it or
use a DT overlay as it's disabled by default.

> I use this kernel:
> 4.12.5-300.fc26.armv7hl
>
> I see that the support in kernel seems already inside:
> CONFIG_SPI=y
> # CONFIG_SPI_DEBUG is not set
> CONFIG_SPI_MASTER=y
>
>
> But I never see the devices /dev/spi* appearing.
> I can't see any messages regarding spi in dmesg.
>
> I tested with a raspbian and I see them correctly.
> I think I miss somethiing.
> Could you help.
> Thanks.
>
> _______________________________________________
> arm mailing list -- arm(a)lists.fedoraproject.org
> To unsubscribe send an email to arm-leave(a)lists.fedoraproject.org
>

[christophe pages]

Thanks for your answer, Yes I added these 2 lines in the config.txt file
like for the raspbain .
So What do I have to do with the dtb files. I see nothing regarding the
spi.
Do I still have to use the config.txt file ?
Thanks for your help.

2017-09-16 14:57 GMT+02:00 Peter Robinson <pbrobinson(a)gmail.com&gt;:

>  On Sat, Sep 16, 2017 at 1:33 PM, christophe pages
> <pageschrist(a)gmail.com&gt;
>  wrote:
>  > Hello,
>  > I try to activate the spi on my raspberry3 using a fedora 26.
>  > I tried these options:
>  > device_tree_param=spi=on
>  > dtoverlay=spi-bcm2708
>
>  Did you add that to config.txt? That way of doing it is specific to
>  Rasspian, the driver in Fedora is the upstream driver which is
>  spi-bcm2835aux and you'll need to either edit the dtb to enable it or
>  use a DT overlay as it's disabled by default.
>
>  > I use this kernel:
>  > 4.12.5-300.fc26.armv7hl
>  >
>  > I see that the support in kernel seems already inside:
>  > CONFIG_SPI=y
>  > # CONFIG_SPI_DEBUG is not set
>  > CONFIG_SPI_MASTER=y
>  >
>  >
>  > But I never see the devices /dev/spi* appearing.
>  > I can't see any messages regarding spi in dmesg.
>  >
>  > I tested with a raspbian and I see them correctly.
>  > I think I miss somethiing.
>  > Could you help.
>  > Thanks.
>  >
>  > _______________________________________________
>  > arm mailing list -- arm(a)lists.fedoraproject.org
>  > To unsubscribe send an email to arm-leave(a)lists.fedoraproject.org
>  >
>

[christophe pages]

Hello,
I applied these commands:
fdtput --type s /boot/dtb-4.12.13-300.fc26.armv7hl/bcm2837-rpi-3-b.dtb
/soc/spi@7e204000 status "okay"

fdtput --type s /boot/dtb-4.12.13-300.fc26.armv7hl/bcm2837-rpi-3-b.dtb
/soc/spi@7e215080 status "okay"
fdtput --type s /boot/dtb-4.12.13-300.fc26.armv7hl/bcm2837-rpi-3-b.dtb
 /soc/spi@7e2150c0 status "okay"

And now I see spi_bcm2835 and spi_bcm2835aux modules started, after the
reboot. But I can't see my /dev/spi* devices.

Do you have an idea of the missing step?

[root@raspchr-fed26 device-tree]# dmesg | grep spi
[   93.646629] spi-bcm2835 3f204000.spi: no tx-dma configuration found -
not using dma mode
[root@raspchr-fed26 device-tree]#

I still see other devices:
./soc/gpio@7e200000/spi0_gpio35
./soc/gpio@7e200000/spi0_gpio7
./soc/gpio@7e200000/spi1_gpio16
./soc/gpio@7e200000/spi2_gpio40

Do I need to activate them ?

Thanks for your help.
Christophe.


2017-09-16 22:53 GMT+02:00 christophe pages <pageschrist(a)gmail.com&gt;:

>  Thanks for your answer, Yes I added these 2 lines in the config.txt
> file
>  like for the raspbain .
>  So What do I have to do with the dtb files. I see nothing regarding the
>  spi.
>  Do I still have to use the config.txt file ?
>  Thanks for your help.
>
>  2017-09-16 14:57 GMT+02:00 Peter Robinson <pbrobinson(a)gmail.com&gt;:
>
> > On Sat, Sep 16, 2017 at 1:33 PM, christophe pages <pageschrist(a)gmail.com&gt;
> > wrote:
> > > Hello,
> > > I try to activate the spi on my raspberry3 using a fedora 26.
> > > I tried these options:
> > > device_tree_param=spi=on
> > > dtoverlay=spi-bcm2708
> >
> > Did you add that to config.txt? That way of doing it is specific to
> > Rasspian, the driver in Fedora is the upstream driver which is
> > spi-bcm2835aux and you'll need to either edit the dtb to enable it or
> > use a DT overlay as it's disabled by default.
> >
> > > I use this kernel:
> > > 4.12.5-300.fc26.armv7hl
> > >
> > > I see that the support in kernel seems already inside:
> > > CONFIG_SPI=y
> > > # CONFIG_SPI_DEBUG is not set
> > > CONFIG_SPI_MASTER=y
> > >
> > >
> > > But I never see the devices /dev/spi* appearing.
> > > I can't see any messages regarding spi in dmesg.
> > >
> > > I tested with a raspbian and I see them correctly.
> > > I think I miss somethiing.
> > > Could you help.
> > > Thanks.
> > >
> > > _______________________________________________
> > > arm mailing list -- arm(a)lists.fedoraproject.org
> > > To unsubscribe send an email to arm-leave(a)lists.fedoraproject.org
> > >
> >
>
>

[Reflective Surface]

Hello Christophe,

Were you able to get spi working?
I followed the same steps as listed in this thread and got the same error
message in dmesg.

On Mon, Sep 18, 2017 at 8:30 AM, christophe pages <pageschrist(a)gmail.com&gt;
wrote:

>  Hello,
>  I applied these commands:
>  fdtput --type s /boot/dtb-4.12.13-300.fc26.armv7hl/bcm2837-rpi-3-b.dtb
>  /soc/spi@7e204000 status "okay"
>
>  fdtput --type s /boot/dtb-4.12.13-300.fc26.armv7hl/bcm2837-rpi-3-b.dtb
>  /soc/spi@7e215080 status "okay"
>  fdtput --type s /boot/dtb-4.12.13-300.fc26.armv7hl/bcm2837-rpi-3-b.dtb
>   /soc/spi@7e2150c0 status "okay"
>
>  And now I see spi_bcm2835 and spi_bcm2835aux modules started, after the
>  reboot. But I can't see my /dev/spi* devices.
>
>  Do you have an idea of the missing step?
>
>  [root@raspchr-fed26 device-tree]# dmesg | grep spi
>  [   93.646629] spi-bcm2835 3f204000.spi: no tx-dma configuration found -
>  not using dma mode
>  [root@raspchr-fed26 device-tree]#
>
>  I still see other devices:
>  ./soc/gpio@7e200000/spi0_gpio35
>  ./soc/gpio@7e200000/spi0_gpio7
>  ./soc/gpio@7e200000/spi1_gpio16
>  ./soc/gpio@7e200000/spi2_gpio40
>
>  Do I need to activate them ?
>
>  Thanks for your help.
>  Christophe.
>
>
>  2017-09-16 22:53 GMT+02:00 christophe pages <pageschrist(a)gmail.com&gt;:
>
> > Thanks for your answer, Yes I added these 2 lines in the config.txt file
> > like for the raspbain .
> > So What do I have to do with the dtb files. I see nothing regarding the
> > spi.
> > Do I still have to use the config.txt file ?
> > Thanks for your help.
> >
> > 2017-09-16 14:57 GMT+02:00 Peter Robinson <pbrobinson(a)gmail.com&gt;:
> >
> >> On Sat, Sep 16, 2017 at 1:33 PM, christophe pages <pageschrist(a)gmail.com&gt;
> >> wrote:
> >> > Hello,
> >> > I try to activate the spi on my raspberry3 using a fedora 26.
> >> > I tried these options:
> >> > device_tree_param=spi=on
> >> > dtoverlay=spi-bcm2708
> >>
> >> Did you add that to config.txt? That way of doing it is specific to
> >> Rasspian, the driver in Fedora is the upstream driver which is
> >> spi-bcm2835aux and you'll need to either edit the dtb to enable it or
> >> use a DT overlay as it's disabled by default.
> >>
> >> > I use this kernel:
> >> > 4.12.5-300.fc26.armv7hl
> >> >
> >> > I see that the support in kernel seems already inside:
> >> > CONFIG_SPI=y
> >> > # CONFIG_SPI_DEBUG is not set
> >> > CONFIG_SPI_MASTER=y
> >> >
> >> >
> >> > But I never see the devices /dev/spi* appearing.
> >> > I can't see any messages regarding spi in dmesg.
> >> >
> >> > I tested with a raspbian and I see them correctly.
> >> > I think I miss somethiing.
> >> > Could you help.
> >> > Thanks.
> >> >
> >> > _______________________________________________
> >> > arm mailing list -- arm(a)lists.fedoraproject.org
> >> > To unsubscribe send an email to arm-leave(a)lists.fedoraproject.org
> >> >
> >>
> >
> >
>
>  _______________________________________________
>  arm mailing list -- arm(a)lists.fedoraproject.org
>  To unsubscribe send an email to arm-leave(a)lists.fedoraproject.org
>
>

[christophe pages]

Hello,
Sorry I have the spi level enable but I am never able to activate the
spidev.
 If you have a solution I am veru interested.
Best regards.
Christophe.


2017-12-27 3:46 GMT+01:00 Reflective Surface <wellpolishedmirror(a)gmail.com&gt;:

>  Hello Christophe,
>
>  Were you able to get spi working?
>  I followed the same steps as listed in this thread and got the same error
>  message in dmesg.
>
>  On Mon, Sep 18, 2017 at 8:30 AM, christophe pages <pageschrist(a)gmail.com&gt;
>  wrote:
>
> > Hello,
> > I applied these commands:
> > fdtput --type s /boot/dtb-4.12.13-300.fc26.armv7hl/bcm2837-rpi-3-b.dtb
> > /soc/spi@7e204000 status "okay"
> >
> > fdtput --type s /boot/dtb-4.12.13-300.fc26.armv7hl/bcm2837-rpi-3-b.dtb
> > /soc/spi@7e215080 status "okay"
> > fdtput --type s /boot/dtb-4.12.13-300.fc26.armv7hl/bcm2837-rpi-3-b.dtb
> >  /soc/spi@7e2150c0 status "okay"
> >
> > And now I see spi_bcm2835 and spi_bcm2835aux modules started, after the
> > reboot. But I can't see my /dev/spi* devices.
> >
> > Do you have an idea of the missing step?
> >
> > [root@raspchr-fed26 device-tree]# dmesg | grep spi
> > [   93.646629] spi-bcm2835 3f204000.spi: no tx-dma configuration found -
> > not using dma mode
> > [root@raspchr-fed26 device-tree]#
> >
> > I still see other devices:
> > ./soc/gpio@7e200000/spi0_gpio35
> > ./soc/gpio@7e200000/spi0_gpio7
> > ./soc/gpio@7e200000/spi1_gpio16
> > ./soc/gpio@7e200000/spi2_gpio40
> >
> > Do I need to activate them ?
> >
> > Thanks for your help.
> > Christophe.
> >
> >
> > 2017-09-16 22:53 GMT+02:00 christophe pages <pageschrist(a)gmail.com&gt;:
> >
> >> Thanks for your answer, Yes I added these 2 lines in the config.txt file
> >> like for the raspbain .
> >> So What do I have to do with the dtb files. I see nothing regarding the
> >> spi.
> >> Do I still have to use the config.txt file ?
> >> Thanks for your help.
> >>
> >> 2017-09-16 14:57 GMT+02:00 Peter Robinson <pbrobinson(a)gmail.com&gt;:
> >>
> >>> On Sat, Sep 16, 2017 at 1:33 PM, christophe pages <
> >>> pageschrist(a)gmail.com&gt; wrote:
> >>> > Hello,
> >>> > I try to activate the spi on my raspberry3 using a fedora 26.
> >>> > I tried these options:
> >>> > device_tree_param=spi=on
> >>> > dtoverlay=spi-bcm2708
> >>>
> >>> Did you add that to config.txt? That way of doing it is specific to
> >>> Rasspian, the driver in Fedora is the upstream driver which is
> >>> spi-bcm2835aux and you'll need to either edit the dtb to enable it or
> >>> use a DT overlay as it's disabled by default.
> >>>
> >>> > I use this kernel:
> >>> > 4.12.5-300.fc26.armv7hl
> >>> >
> >>> > I see that the support in kernel seems already inside:
> >>> > CONFIG_SPI=y
> >>> > # CONFIG_SPI_DEBUG is not set
> >>> > CONFIG_SPI_MASTER=y
> >>> >
> >>> >
> >>> > But I never see the devices /dev/spi* appearing.
> >>> > I can't see any messages regarding spi in dmesg.
> >>> >
> >>> > I tested with a raspbian and I see them correctly.
> >>> > I think I miss somethiing.
> >>> > Could you help.
> >>> > Thanks.
> >>> >
> >>> > _______________________________________________
> >>> > arm mailing list -- arm(a)lists.fedoraproject.org
> >>> > To unsubscribe send an email to arm-leave(a)lists.fedoraproject.org
> >>> >
> >>>
> >>
> >>
> >
> > _______________________________________________
> > arm mailing list -- arm(a)lists.fedoraproject.org
> > To unsubscribe send an email to arm-leave(a)lists.fedoraproject.org
> >
> >
>