Hi Andrey, On 13 April 2017 at 06:32, Andrey Smirnov <andrew.smirnov@xxxxxxxxx> wrote: > Add node for GPC and specify as a parent interrupt controller for SoC bus. > > Cc: yurovsky@xxxxxxxxx > Cc: Sascha Hauer <kernel@xxxxxxxxxxxxxx> > Cc: Fabio Estevam <fabio.estevam@xxxxxxx> > Cc: Rob Herring <robh+dt@xxxxxxxxxx> > Cc: Mark Rutland <mark.rutland@xxxxxxx> > Cc: Russell King <linux@xxxxxxxxxxxxxxx> > Cc: devicetree@xxxxxxxxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx > Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx> > --- > arch/arm/boot/dts/imx7s.dtsi | 27 ++++++++++++++++++++++++++- > 1 file changed, 26 insertions(+), 1 deletion(-) > > diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi > index 8fee299..1a7058f 100644 > --- a/arch/arm/boot/dts/imx7s.dtsi > +++ b/arch/arm/boot/dts/imx7s.dtsi > @@ -42,6 +42,7 @@ > */ >[0 > #include <dt-bindings/clock/imx7d-clock.h> > +#include <dt-bindings/power/imx7-power.h> > #include <dt-bindings/gpio/gpio.h> > #include <dt-bindings/input/input.h> > #include <dt-bindings/interrupt-controller/arm-gic.h> > @@ -119,7 +120,7 @@ > #address-cells = <1>; > #size-cells = <1>; > compatible = "simple-bus"; > - interrupt-parent = <&intc>; > + interrupt-parent = <&gpc>; I've been testing your GPC/PCIe patch sets against v4.11-rc5 on my imx7d-cl-som-imx7, but hit a bit of a wall. When gpc is set as the interrupt-parent for the soc, the kernel seems to hang and not produce any output on the serial port[0]. I tried to enable earlyprintk, but no luck getting a trace. Reversing this change, gets the board booting[1], but obviously isn't using the gpc which is needed for PCIe support as I understand it. I assume you've tested these changes on a imx7d-sdb and are not seeing a similar issue? You can find the patches I've picked on top of v4.11-rc5 here[2], any idea what might be the issue? Cheers, Tyler [0] https://hastebin.com/zetohetuwi.coffeescript [1] https://hastebin.com/uvacuyicuh.sql [2] https://github.com/EmbeddedAndroid/linux/commits/tracking-ltd-imx-dev -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
