Reboot hangs on Kirkwood ns2 boards with 3.8-rc2
Simon Guinot
simon.guinot at sequanux.org
Sat Jan 5 22:34:55 EST 2013
Hi Andrew and Jason,
While testing 3.8-rc2 on the ns2 boards (DT based), I noticed that
reboot is not working. After issuing a reboot, the kernel hangs. No
error messages are displayed. Moreover, on my non-DT Kirkwood boards,
reboot is working as expected.
Am I the only one to experiment this issue ?
After some painful investigations, I found out that my problem may be
related with the device tree binding addition to the driver ehci-orion.
I still don't understand exactly why, but if I add the "clocks" property
to the ehci node, reboot works.
diff --git a/arch/arm/boot/dts/kirkwood.dtsi
b/arch/arm/boot/dts/kirkwood.dtsi
index 7735cee..110d6cb 100644
--- a/arch/arm/boot/dts/kirkwood.dtsi
+++ b/arch/arm/boot/dts/kirkwood.dtsi
@@ -144,6 +144,7 @@
compatible = "marvell,orion-ehci";
reg = <0x50000 0x1000>;
interrupts = <19>;
+ clocks = <&gate_clk 3>;
status = "okay";
};
Do you have any idea ?
Regards,
Simon
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