On Mon, Nov 25, 2019 at 12:10 PM Peter Geis <pgwipeout@xxxxxxxxx> wrote: > > On Mon, Nov 25, 2019 at 11:52 AM Robin Murphy <robin.murphy@xxxxxxx> wrote: > > > > Hi Peter, > > > > On 25/11/2019 4:28 pm, Peter Geis wrote: > > > Good Morning, > > > > > > Another issue I've come across while testing PCIE on the rockpro64. > > > When a PCIE device is inserted into the board, and it enumerates > > > successfully, the board will not reset. > > > I've tried various states of u-boot-rockchip, u-boot-mainline, with > > > both miniloader and TPL/SPL. > > > > In case it's relevant, what particular PCIe device(s) have you seen the > > issue with? FWIW I've been running a Samsung 960 Evo NVMe in my > > NanoPC-T4 with mainline kernels for months now and it's always rebooted > > flawlessly. > > > > Robin. > > Currently with a I350 NIC, but also observed with a pcie switch, and the GTX645. > The NIC works, while the other two didn't without the patch to hijack > the error handler. > > I am running the latest atf built from their github. On closer examination, it isn't the pcie devices causing the reboot issues, the rk3399 just doesn't reboot. It would seem the trigger with miniloader was random enough that it appeared to be tied to my pcie testing. It happens 100% of the time with tpl/spl. > > > > > > With miniloader and both variants of u-boot, if you attempt a reboot > > > it never fires the "reboot: Restarting system" message. > > > If you trigger a sysrq reboot at this stage, it will reboot, but fails > > > to start up the two a72 cores and subsequently hangs a second later > > > when it loads the first dma driver. > > > > > > With TPL/SPL on mainline-u-boot (I can't get rockchip-u-boot to work > > > with TPL/SPL), it fires the "reboot: Restarting system" message, but > > > never reboots. > > > sysrq does not function at this point. > > > > > > I believe the pcie controller is not being halted, and gets stuck in a > > > loop with the two a72 cores. > > > > > > _______________________________________________ > > > Linux-rockchip mailing list > > > Linux-rockchip@xxxxxxxxxxxxxxxxxxx > > > http://lists.infradead.org/mailman/listinfo/linux-rockchip > > > _______________________________________________ Linux-rockchip mailing list Linux-rockchip@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-rockchip
