Hi, +Edgar On 08. 12. 19 23:38, Guenter Roeck wrote: > On Fri, Oct 18, 2019 at 06:07:31PM +0200, Michael Tretter wrote: >> From: Rajan Vaja <rajan.vaja@xxxxxxxxxx> >> >> Add firmware DT node in ZynqMP device tree. This node >> uses bindings as per new firmware interface driver. >> >> Signed-off-by: Rajan Vaja <rajanv@xxxxxxxxxx> >> Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx> >> Signed-off-by: Michael Tretter <m.tretter@xxxxxxxxxxxxxx> > > With this patch applied in the mainline kernel, the qemu xlnx-zcu102 > emulation crashes (see below). Any idea what it might take to get > qemu back to working ? Driver talks through ATF to PMU unit(microblaze). I don't think A53+MB concept is working with mainline qemu. But crash is too hard. It should be no response from PMU and then this panic. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/firmware/xilinx/zynqmp.c?h=v5.5-rc1#n728 Edgar: can you please comment this? Thanks, Michal