Hummingboard - no PCIe since last update

[orip]

Hi,
I've been using the Hummingboard i2ex with a PCIe sata card for a while now.
After the last round of updates (pacman -Syu) the PCIe slot has stopped working and it does not detect the card (using lspci the output is empty).
I asked about this issue at the solid-run forums and I was told to ask moonman here (http://forum.solid-run.com/kodi-xbmc-pl ... -s480.html).
I'd really appreciate some help as this renders my Hummingboard useless. I'd be happy to provide any information needed.
Thanks.

[Abzie]

Restarted the device?

[orip]

Yes, also re-flashed arch on it to rule out installation specific issue.

[Abzie]

Hmm, if you reinstalled arch, you can't use pacman to downgrade the kernel from cache. Any errors from boot?

I'd suggest waiting for moonman's input.

[moonman]

Hmm I was not aware of such a problem. Recently we switched to linux-fslc source core for the kernel from solidrun. Quick look at the config did not reveal anything obvious. I will have to compare dts files from older source code and this one.

[orip]

Yes, there are some errors on boot (in dmesg), I hope they're somewhat helpful (attached below).

Also I just re-flashed just the SD card (didtn't do a full reinstall - the system boots normally off of an SSD), so I was able to downgrade the kernel, which fixed the PCI-e issue, however it breaks some other important stuff overall does more harm than good.

$this->bbcode_second_pass_code('', '$ dmesg | grep pci
[ 0.000000] Kernel command line: root=PARTUUID=0008410f-01 rootwait rw console=tty1 console=ttymxc0,115200 consoleblank=0 video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24,bpp=16 dmfc=3 ahci_imx.hotplug=1 pci=nomsi loop.max_part=15
[ 0.472548] imx6q-pcie 1ffc000.pcie: phy link never came up
[ 0.472577] imx6q-pcie 1ffc000.pcie: Failed to bring link up!
[ 0.472596] imx6q-pcie 1ffc000.pcie: failed to initialize host
[ 0.472733] imx6q-pcie: probe of 1ffc000.pcie failed with error -22
[ 1.758149] ehci-pci: EHCI PCI platform driver
[ 1.758237] ohci-pci: OHCI PCI platform driver')

[moonman]

The only difference I found is "no-msi;" in the old kernel, which is also defined in /boot/uEnv.txt. Try removing it from the kernel cmdline in /boot/uEnv.txt
I only have the Cubox i so can't test.

[orip]

Thanks for the help, however removing 'pci=nomsi' did not help .
Is there anything else that might fix this?

[moonman]

From what I read on solidrun forum this is a known bug with this kernel. If you don't need 3d acceleration then mainline kernel should work 'linux-armv7' package

[orip]

Seems like my hummingboard doesn't boot with the mainline kernel for some reason. Even on a clean install and then just using pacman to install 'linux-armv7', it doesn't boot at all.. :/.
Do you happen to know if there are plans to fix this bug in the imx kernel?