On 05:32-20131121, Stefan Roese wrote: > On 11/21/2013 05:28 AM, Stefan Roese wrote: > >>>> Disabling the RTC in the DT doesn't help (of course). So what's the > >>>> recommended way to disable this hwmod access to the RTC registers? > >>> > >>> > >>> http://www.spinics.net/lists/linux-omap/msg98207.html > >>> might help you - we had thought it might get queued for 3.12, but it > >>> was queued for 3.13 instead.. > > > > Unfortunately this patch doesn't fix the crash for me (yet). With this > > patch applied and the RTC DT node completely removed from am33xx.dtsi it > > works. But only disabling it (via status = "disabled" in the board dts > > file) doesn't work. > > > > I'll dig a bit deeper today... > > This (hacky) patch works, but I'm not sure if this is acceptable upstream: > > am335x-board_foo.dts: > > ... > > &rtc { > reg = <0x0 0x0>; > }; > You should be able to achieve the same effect as following (example from BBB) - though I dont see this defined in Documentation/devicetree/bindings/arm/omap/omap.txt I will allow the wisdom of others to comment better here :) diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts index 6b71ad9..a734ef4 100644 --- a/arch/arm/boot/dts/am335x-boneblack.dts +++ b/arch/arm/boot/dts/am335x-boneblack.dts @@ -66,6 +66,11 @@ status = "okay"; }; +&am335xrtc { + status = "disabled"; + ti,hwmods="disabled"; +}; + / { hdmi { compatible = "ti,tilcdc,slave"; diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index f6d8ffe..71bf2ec 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -373,7 +373,7 @@ ti,timer-pwm; }; - rtc@44e3e000 { + am335xrtc: rtc@44e3e000 { compatible = "ti,da830-rtc"; reg = <0x44e3e000 0x1000>; interrupts = <75 -- Regards, Nishanth Menon -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
