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android_kernel_samsung_sm87…/bindings/phy/brcm,sr-pcie-phy.txt
Melody Olvera 6f18ce8026 dt-bindings: Add devicetree bindings
Add snapshot of device tree bindings from keystone common kernel, branch
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Change-Id: I7682079615cbd9f29340a5c1f2a1d84ec441a1f1
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
2023-04-03 15:40:37 -07:00

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Broadcom Stingray PCIe PHY
Required properties:
- compatible: must be "brcm,sr-pcie-phy"
- reg: base address and length of the PCIe SS register space
- brcm,sr-cdru: phandle to the CDRU syscon node
- brcm,sr-mhb: phandle to the MHB syscon node
- #phy-cells: Must be 1, denotes the PHY index
For PAXB based root complex, one can have a configuration of up to 8 PHYs
PHY index goes from 0 to 7
For the internal PAXC based root complex, PHY index is always 8
Example:
mhb: syscon@60401000 {
compatible = "brcm,sr-mhb", "syscon";
reg = <0 0x60401000 0 0x38c>;
};
cdru: syscon@6641d000 {
compatible = "brcm,sr-cdru", "syscon";
reg = <0 0x6641d000 0 0x400>;
};
pcie_phy: phy@40000000 {
compatible = "brcm,sr-pcie-phy";
reg = <0 0x40000000 0 0x800>;
brcm,sr-cdru = <&cdru>;
brcm,sr-mhb = <&mhb>;
#phy-cells = <1>;
};
/* users of the PCIe PHY */
pcie0: pcie@48000000 {
...
...
phys = <&pcie_phy 0>;
phy-names = "pcie-phy";
};