1 Brcmstb PCIe Host Controller Device Tree Bindings
5 "brcm,bcm7425-pcie" -- for 7425 family MIPS-based SOCs.
6 "brcm,bcm7435-pcie" -- for 7435 family MIPS-based SOCs.
7 "brcm,bcm7445-pcie" -- for 7445 and later ARM based SOCs (not including
9 "brcm,bcm7278-pcie" -- for 7278 family ARM-based SOCs.
11 - reg -- the register start address and length for the PCIe reg block.
12 - interrupts -- two interrupts are specified; the first interrupt is for
13 the PCI host controller and the second is for MSI if the built-in
14 MSI controller is to be used.
15 - interrupt-names -- names of the interrupts (above): "pcie" and "msi".
16 - #address-cells -- set to <3>.
17 - #size-cells -- set to <2>.
18 - #interrupt-cells: set to <1>.
19 - interrupt-map-mask and interrupt-map, standard PCI properties to define the
20 mapping of the PCIe interface to interrupt numbers.
21 - ranges: ranges for the PCI memory and I/O regions.
22 - linux,pci-domain -- should be unique per host controller.
25 - clocks -- phandle of pcie clock.
26 - clock-names -- set to "sw_pcie" if clocks is used.
27 - dma-ranges -- Specifies the inbound memory mapping regions when
28 an "identity map" is not possible.
29 - msi-controller -- this property is typically specified to have the
30 PCIe controller use its internal MSI controller.
31 - msi-parent -- set to use an external MSI interrupt controller.
32 - brcm,enable-ssc -- (boolean) indicates usage of spread-spectrum clocking.
33 - max-link-speed -- (integer) indicates desired generation of link:
34 1 => 2.5 Gbps (gen1), 2 => 5.0 Gbps (gen2), 3 => 8.0 Gbps (gen3).
38 pcie0: pcie@f0460000 {
39 reg = <0x0 0xf0460000 0x0 0x9310>;
40 interrupts = <0x0 0x0 0x4>;
41 compatible = "brcm,bcm7445-pcie";
44 ranges = <0x02000000 0x00000000 0x00000000 0x00000000 0xc0000000 0x00000000 0x08000000
45 0x02000000 0x00000000 0x08000000 0x00000000 0xc8000000 0x00000000 0x08000000>;
46 #interrupt-cells = <1>;
47 interrupt-map-mask = <0 0 0 7>;
48 interrupt-map = <0 0 0 1 &intc 0 47 3
51 0 0 0 4 &intc 0 50 3>;
53 clock-names = "sw_pcie";
54 msi-parent = <&pcie0>; /* use PCIe's internal MSI controller */
55 msi-controller; /* use PCIe's internal MSI controller */
58 linux,pci-domain = <0>;