On Sun, Oct 28, 2018 at 6:09 PM Adam Ford <aford173@xxxxxxxxx> wrote:
>
> MMCx_dat1 and serial RX pins can be associated to additional
> interrupts. Enable these on AM3517-evm.
>
The reason, I made this an RFC, is that I think there might be some
IRQ support missing in AM3517, and I am not sure where to look.
During boot, I get multiple instances of the following message:
irq: no irq domain found for pinmux@30 !
They seem to correspond to each of the newly added
'interrupts-extended' entries.
Looking at the technical reference manual for the AM3517, it appears
as if this 'should' be possible.
When cat /proc/interrupts on a different omap36/37 board, I can see
the irq entries:
147: 0 pinctrl 338 Edge 4806a000.serial:wakeup
149: 0 pinctrl 282 Edge 4809c000.mmc:wakeup
150: 0 pinctrl 310 Edge 480ad000.mmc:wakeup
However, when I look on the AM3517, no pinctrl entries exist in
/proc/interrupts, so I am guessing something needs to happen to setup
this up. I am curious to know if there is a missing component
somewhere that needs to enable this.
thanks in advance,
adam
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
>
> diff --git a/arch/arm/boot/dts/am3517-evm.dts b/arch/arm/boot/dts/am3517-evm.dts
> index c45aef806870..c518c51eb198 100644
> --- a/arch/arm/boot/dts/am3517-evm.dts
> +++ b/arch/arm/boot/dts/am3517-evm.dts
> @@ -221,6 +221,7 @@
> };
>
> &mmc1 {
> + interrupts-extended = <&intc 83 &omap3_pmx_core 0x11a>;
> status = "okay";
> pinctrl-names = "default";
> pinctrl-0 = <&mmc1_pins>;
> diff --git a/arch/arm/boot/dts/am3517-som.dtsi b/arch/arm/boot/dts/am3517-som.dtsi
> index b1c988eed87c..ae93dd72020a 100644
> --- a/arch/arm/boot/dts/am3517-som.dtsi
> +++ b/arch/arm/boot/dts/am3517-som.dtsi
> @@ -148,7 +148,7 @@
> };
>
> &mmc2 {
> - interrupts-extended = <&intc 86 /* &omap3_pmx_core 0x12c */>;
> + interrupts-extended = <&intc 86 &omap3_pmx_core 0x12e>;
>
> status = "okay";
> pinctrl-names = "default";
> @@ -172,6 +172,7 @@
> &uart2 {
> pinctrl-names = "default";
> pinctrl-0 = <&uart2_pins>;
> + interrupts-extended = <&intc 73 &omap3_pmx_core OMAP3_UART2_RX>;
>
> bluetooth {
> compatible = "ti,wl1271-st";
> --
> 2.17.1
>
