[PATCH net-next v2 3/5] arm64: dts: s32n79: add NETC IEP18 ECAM node for ENETC PPM ports
flat view
WARM1d
From: Claudiu Manoil <claudiu.manoil@nxp.com>
Date: 2026-10-13 17:12:56
Also in:
imx, linux-arm-kernel, linux-devicetree, lkml
Subsystem:
arm/freescale imx / mxc / layerscape arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
Revision v2 of 2 in this series.
Revisions (2)
- v1 [diff vs current]
- v2 current
Add the netc_iep18 PCIe ECAM host node describing the NETC integrated endpoint bus allocated to the first Linux cohort on S32N79. The bus is enumerated via the generic pci-host-ecam-generic driver and hosts the ENETC v4 Pseudo-MAC (PPM) PF and its VFs, which connect internally to the on-chip NETC switch (not owned by Linux). The node is kept disabled at the SoC level; boards that wire up NETC enable it. MSIs are routed through the GIC-v3 ITS (msi-map) and DMA is translated by the SMMUv3 (iommu-map). Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> --- v2: - Replaced the 'msi-parent' stub property with 'msi-map', as per H/W spec. arch/arm64/boot/dts/freescale/s32n79.dtsi | 24 +++++++++++++++++++++++ 1 file changed, 24 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/s32n79.dtsi b/arch/arm64/boot/dts/freescale/s32n79.dtsi
index 94ab58783fdc..65cf65e82832 100644
--- a/arch/arm64/boot/dts/freescale/s32n79.dtsi
+++ b/arch/arm64/boot/dts/freescale/s32n79.dtsi@@ -122,6 +122,30 @@ irqsteer_coss: interrupt-controller@4ed00000 { }; }; + nwss-bus { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>; + ranges = <0x0 0x48800000 0x0 0x48800000 0x0 0x4b0000>, + <0x2 0x40000000 0x2 0x40000000 0x0 0x20000000>; + + netc_iep18: pcie@241200000 { + compatible = "pci-host-ecam-generic"; + reg = <0x2 0x41200000 0x0 0x100000>; + #address-cells = <3>; + #size-cells = <2>; + device_type = "pci"; + bus-range = <0x0 0x0>; + iommu-map = <0x0 &smmu 0xc0000 0x100>; + msi-map = <0x0 &its 0xc0000 0x100>; + dma-coherent; + status = "disabled"; + + /* All NETC PCIe functions */ + ranges = <0x82000000 0x0 0x48800000 0x0 0x48800000 0x0 0x4b0000>; + }; + }; + cpus { #address-cells = <1>; #size-cells = <0>;
--
2.34.1