Thanks for the patch Steffen, but I have already submitted a patch to fix this. The patch is in linux-next and staged for an rc in v5.9. Dinh On 8/31/20 5:49 AM, Steffen Trumtrar wrote: > Since commit 6d2e16a3181b ("clocksource: dw_apb_timer_of: Fix missing > clockevent timers") the dw_apb_timer_of code tries to add a clockevent > for timer3. This reveals the wrong register offset that is provided in > the timer3-node in the socfpga_arria10 devicetree which in turn results > in > > Unhandled fault: imprecise external abort (0x406) at 0xbea9fe20 > > and therefore in a kernel panic. > > Set the offset to the correct value. > > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx> > --- > arch/arm/boot/dts/socfpga_arria10.dtsi | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm/boot/dts/socfpga_arria10.dtsi b/arch/arm/boot/dts/socfpga_arria10.dtsi > index 7b8961794a82..a5bd4537766d 100644 > --- a/arch/arm/boot/dts/socfpga_arria10.dtsi > +++ b/arch/arm/boot/dts/socfpga_arria10.dtsi > @@ -852,7 +852,7 @@ > timer3: timer3@ffd00100 { > compatible = "snps,dw-apb-timer"; > interrupts = <0 118 IRQ_TYPE_LEVEL_HIGH>; > - reg = <0xffd01000 0x100>; > + reg = <0xffd00100 0x100>; > clocks = <&l4_sys_free_clk>; > clock-names = "timer"; > resets = <&rst L4SYSTIMER1_RESET>; >