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iMX6 PCIE range not found

Question asked by Randy Silagi on Dec 12, 2016
Latest reply on Dec 13, 2016 by igorpadykov

I have a Sabre i.MX6 Solox board.  The PCIe bus fails with:

 

imx6q-pcie 8ffc000.pcie: phy link never came up
imx6q-pcie 8ffc000.pcie: DEBUG_R0: 0x00cb8300, DEBUG_R1: 0x08200000
imx6q-pcie 8ffc000.pcie: failed to initialize host: ret: -22

 

I have tracked this to pcie-designware.c::dw_pcie_host_init->of_pci_parse_bus_range(np, &pp->busn);

 

This function of_pci_parse_bus_range is looking for the "bus-range" property.  I assume that property is coming from one of the DTS files.  This version is comprised of 3 DTS included to create the one being used, imx6sx-sdb.dts.    None of the DTS files have any "bus-range".  I'm wondering if the "ranges" would from imx6sx.dtsi would work.  Maybe the property name is justed spelled wrong, again?

 

If anyone has any ideas about why the "bus-range" property can't be found please let me know.

 

Randy Silagi

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