[PATCH 4/5] arm64: dts: imx95: add PCIe's msi-map and iommu-map property

Frank Li
2025-01-28T21:22:03Z

Add PCIe's msi-map and iommu-map property because i.MX95 support smmu and
its.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
arch/arm64/boot/dts/freescale/imx95.dtsi | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
index 6b8470cb3461a..2cebeda43a52d 100644
--- a/arch/arm64/boot/dts/freescale/imx95.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx95.dtsi
@@ -1573,6 +1573,12 @@ pcie0: pcie@4c300000 {
assigned-clock-parents = <0>, <0>,
<&scmi_clk IMX95_CLK_SYSPLL1_PFD1_DIV2>;
power-domains = <&scmi_devpd IMX95_PD_HSIO_TOP>;
+ /* pcie0's Devid(BIT[7:6]) is 0x00, stream id(BIT[5:0]) is 0x10~0x17 */
+ msi-map = <0x0 &its 0x10 0x1>,
+ <0x100 &its 0x11 0x7>;
+ iommu-map = <0x000 &smmu 0x10 0x1>,
+ <0x100 &smmu 0x11 0x7>;
+ iommu-map-mask = <0x1ff>;
fsl,max-link-speed = <3>;
status = "disabled";
};
@@ -1640,6 +1646,14 @@ pcie1: pcie@4c380000 {
assigned-clock-parents = <0>, <0>,
<&scmi_clk IMX95_CLK_SYSPLL1_PFD1_DIV2>;
power-domains = <&scmi_devpd IMX95_PD_HSIO_TOP>;
+ /* pcie1's Devid(BIT[7:6]) is 0x10, stream id(BIT[5:0]) is 0x18~0x1f */
+ msi-map = <0x0 &its 0x98 0x1>,
+ <0x100 &its 0x99 0x7>;
+ msi-map-mask = <0x1ff>;
+ /* smmu have not Devid(BIT[7:6]) */
+ iommu-map = <0x000 &smmu 0x18 0x1>,
+ <0x100 &smmu 0x19 0x7>;
+ iommu-map-mask = <0x1ff>;
fsl,max-link-speed = <3>;
status = "disabled";
};
--
2.34.1