> > > I am trying to test v4 of your patch series for USB support on rpi4: > > > https://patchwork.ozlabs.org/project/uboot/list/?series=179078 > > > > > > I am building u-boot 64-bit. Testing on a rpi4 B 1.2 board. But, USB is > > > not working for me and wanted to see if you had any ideas. Are there > > > other dependencies other than just applying your patch series? > > > > > > I've pasted the u-boot console output below. > > > > > > From what I can tell this board does not need the VL805 firmware > > > > 1.2 rev boards do need the firmware loading patch series, not sure > > about any other patches. > > Are you sure? A colleague of mine said that it was in 1.4 that the flash > chip for the VL805 was removed. I can physically see that the flash > chip is on my board.
Yes, I am sure, the 1.2 is for the 2/4Gb model with the changes that need the firmware loading, the 1.4 according to their rev docs is limited to the 8Gb model ATM. https://www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/README.md > > In any case, I did figure out one thing that was going on. I was using > the rpi4 DTB as it came shipped with my board. I found that on the > PCIe node there was a typo in the compatible string. I fixed that: > bus-range = <0x0 0x1>; > - compatible = "brcm,bcm7211-pcie", > "brcm,bcm7445-pcie", "brcm,pci-plat-dev"; > + compatible = "brcm,bcm2711-pcie", > "brcm,bcm7445-pcie", "brcm,pci-plat-dev"; > max-link-speed = <0x2>; > > ...and USB now starts up and works. > > Thanks, > Stuart
