On Fri, Oct 8, 2021 at 6:04 PM Marek Behún <kabel@xxxxxxxxxx> wrote: > > On Fri, 8 Oct 2021 17:52:40 +0200 > Robert Marko <robert.marko@xxxxxxxxxx> wrote: > > > I have to agree, so I did some digging. > > I don't think that the Armada 8k PCI driver actually supports HW level PERST#. > > I then looked at the functional specs and the only thing that looks > > related to PERST# > > is PCIe Software Reset Register which has a SoftWarePERst bit. > > > > Can you maybe look at it? > > > > Removed the reset-gpios and set the PERST pinmux to PCIe, and the > > QCA9377 card will > > show up, but I have no idea whether PERST# actually ever gets toggled. > > You can check with voltmeter, toggle the bit via mw command in u-boot. Yeah, I was planning to do that but I cant actually read the register as using md or devmem causes it to lock up and then panic and reset. Regards, Robert -- Robert Marko Staff Embedded Linux Engineer Sartura Ltd. Lendavska ulica 16a 10000 Zagreb, Croatia Email: robert.marko@xxxxxxxxxx Web: www.sartura.hr
