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riscv: dts: spacemit: Add 'linux,pci-domain' to PCIe nodes for K1

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The SpacemiT K1 SoC has 3 PCIe EP controller nodes. Add the
'linux,pci-domain' property to assign a PCI domain number to
each of the controllers instead of assigning it randomly.

This creates a stable sysfs path, allowing userspace scripts
to reliably target specific PCIe devices (such as PCIe NICs).

Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
Reviewed-by: Yixun Lan <dlan@kernel.org>
Link: https://lore.kernel.org/r/20260309030000.1157040-1-amadeus@jmu.edu.cn
Signed-off-by: Yixun Lan <dlan@kernel.org>
This commit is contained in:
Chukun Pan 2026-03-09 11:00:00 +08:00 committed by Yixun Lan
parent ec1fb4e55d
commit 86314111f6
1 changed files with 4 additions and 0 deletions
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4
arch/riscv/boot/dts/spacemit/k1.dtsi
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@ -1033,6 +1033,7 @@ pcie-bus {
#size-cells = <2>;
dma-ranges = <0x0 0x00000000 0x0 0x00000000 0x0 0x80000000>,
<0x0 0xb8000000 0x1 0x38000000 0x3 0x48000000>;
pcie0: pcie@ca000000 {
device_type = "pci";
compatible = "spacemit,k1-pcie";
@ -1044,6 +1045,7 @@ pcie0: pcie@ca000000 {
"atu",
"config",
"link";
linux,pci-domain = <0>;
#address-cells = <3>;
#size-cells = <2>;
ranges = <0x01000000 0x0 0x00000000 0x0 0x8f002000 0x0 0x00100000>,
@ -1087,6 +1089,7 @@ pcie1: pcie@ca400000 {
"atu",
"config",
"link";
linux,pci-domain = <1>;
#address-cells = <3>;
#size-cells = <2>;
ranges = <0x01000000 0x0 0x00000000 0x0 0x9f002000 0x0 0x00100000>,
@ -1130,6 +1133,7 @@ pcie2: pcie@ca800000 {
"atu",
"config",
"link";
linux,pci-domain = <2>;
#address-cells = <3>;
#size-cells = <2>;
ranges = <0x01000000 0x0 0x00000000 0x0 0xb7002000 0x0 0x00100000>,