diff --git a/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt b/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt index ebafba29fc5f84799f1c88adcd23b8221024255b..b393ccf1e9f302cd8f8e965b74ad2bad8ab005d5 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt +++ b/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt @@ -64,6 +64,12 @@ PROPERTIES device-trees omit this property on MPIC nodes even when the MPIC is in fact big-endian, so certain boards override this property. + - single-cpu-affinity + Usage: optional + Value type: + If present the MPIC will be assumed to only be able to route + non-IPI interrupts to a single CPU at a time (EG: Freescale MPIC). + INTERRUPT SPECIFIER DEFINITION Interrupt specifiers consists of 4 cells encoded as diff --git a/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi b/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi index 47f2b676bc7d1b65d03237cbfe1a6639a0481312..658bd81982cbb05b5722648925f316532b1825d5 100644 --- a/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi +++ b/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi @@ -40,6 +40,7 @@ mpic: pic@40000 { compatible = "fsl,mpic"; device_type = "open-pic"; big-endian; + single-cpu-affinity; }; timer@41100 { diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 9deec44ede83064a1a80ae51b745c39efed4ab26..c297a524f7612c90557ed9b701d672a09f5f2823 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -1187,6 +1187,8 @@ struct mpic * __init mpic_alloc(struct device_node *node, flags |= MPIC_BIG_ENDIAN; if (of_get_property(node, "pic-no-reset", NULL)) flags |= MPIC_NO_RESET; + if (of_get_property(node, "single-cpu-affinity", NULL)) + flags |= MPIC_SINGLE_DEST_CPU; if (of_device_is_compatible(node, "fsl,mpic")) flags |= MPIC_FSL;