[PATCH 3/3] arm64: dts: imx95: add SMMU support for NETC

Wei Fang
2025-05-28T08:54:47Z

The i.MX95 NETC supports SMMU, so add SMMU support.

Signed-off-by: Wei Fang <wei.fang@nxp.com>
---
arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts | 8 ++++++++
arch/arm64/boot/dts/freescale/imx95.dtsi | 8 ++++++++
2 files changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts b/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts
index 9f4d0899a94d..e9a5fb36f5d0 100644
--- a/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts
@@ -494,6 +494,14 @@ &netc_bus0 {
<0x60 &its 0x66 0x1>, //ENETC1 VF1
<0x80 &its 0x64 0x1>, //ENETC2 PF
<0xc0 &its 0x67 0x1>;
+ iommu-map = <0x0 &smmu 0x20 0x1>,
+ <0x10 &smmu 0x21 0x1>,
+ <0x20 &smmu 0x22 0x1>,
+ <0x40 &smmu 0x23 0x1>,
+ <0x50 &smmu 0x25 0x1>,
+ <0x60 &smmu 0x26 0x1>,
+ <0x80 &smmu 0x24 0x1>,
+ <0xc0 &smmu 0x27 0x1>;
};

&netc_emdio {
diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
index 632631a29112..32a91d7b51e5 100644
--- a/arch/arm64/boot/dts/freescale/imx95.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx95.dtsi
@@ -1861,6 +1861,14 @@ netc_bus0: pcie@4ca00000 {
<0x90 &its 0x65 0x1>, //ENETC2 VF0
<0xa0 &its 0x66 0x1>, //ENETC2 VF1
<0xc0 &its 0x67 0x1>; //NETC Timer
+ iommu-map = <0x0 &smmu 0x20 0x1>,
+ <0x10 &smmu 0x21 0x1>,
+ <0x20 &smmu 0x22 0x1>,
+ <0x40 &smmu 0x23 0x1>,
+ <0x80 &smmu 0x24 0x1>,
+ <0x90 &smmu 0x25 0x1>,
+ <0xa0 &smmu 0x26 0x1>,
+ <0xc0 &smmu 0x27 0x1>;
/* ENETC0~2 and Timer BAR0 - non-prefetchable memory */
ranges = <0x82000000 0x0 0x4cc00000 0x0 0x4cc00000 0x0 0xe0000
/* Timer BAR2 - prefetchable memory */
--
2.34.1