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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.txt | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.txt | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.txt b/Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.txt new file mode 100644 index 000000000..e8d82286b --- /dev/null +++ b/Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.txt @@ -0,0 +1,41 @@ +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"; + }; |