[PATCH v1 5/6] arm64: dts: qcom: sa8775p: Add pcie0 and pcie1 nodes
Manivannan Sadhasivam
mani at kernel.org
Thu Jul 6 04:15:53 PDT 2023
On Thu, Jul 06, 2023 at 12:01:37PM +0200, Konrad Dybcio wrote:
> On 5.07.2023 10:17, Mrinmay Sarkar wrote:
> > Add pcie dtsi nodes for two controllers found on sa8775p platform.
> >
> > Signed-off-by: Mrinmay Sarkar <quic_msarkar at quicinc.com>
> > ---[...]
>
> > + pcie1_phy: phy at 1c14000 {
> > + compatible = "qcom,sa8775p-qmp-gen4x4-pcie-phy";
> > + reg = <0x0 0x1c14000 0x0 0x4000>;
> > +
> > + clocks = <&gcc GCC_PCIE_1_AUX_CLK>,
> > + <&gcc GCC_PCIE_1_CFG_AHB_CLK>,
> > + <&gcc GCC_PCIE_CLKREF_EN>,
> > + <&gcc GCC_PCIE_1_PHY_RCHNG_CLK>,
> > + <&gcc GCC_PCIE_1_PHY_AUX_CLK>,
> > + <&gcc GCC_PCIE_1_PIPE_CLK>,
> > + <&gcc GCC_PCIE_1_PIPEDIV2_CLK>;
> > +
> > + clock-names = "aux", "cfg_ahb", "ref", "rchng", "phy_aux",
> > + "pipe", "pipediv2";
> > +
> > + assigned-clocks = <&gcc GCC_PCIE_1_PHY_RCHNG_CLK>;
> > + assigned-clock-rates = <100000000>;
> > +
> > + power-domains = <&gcc PCIE_1_GDSC>;
> Please check if it's the correct power domain. I've heard that the PCIe PHY
> may be hooked up to something else but have no way of confirming myself.
>
Right, I missed it during my review. PHYs are powered by MX domain on all the
platforms I have seen so far, so this should be cross checked.
And someone should fix the existing dts.
- Mani
> Konrad
> > +
> > + resets = <&gcc GCC_PCIE_1_PHY_BCR>;
> > + reset-names = "phy";
> > +
> > + #clock-cells = <0>;
> > + clock-output-names = "pcie_1_pipe_clk";
> > +
> > + #phy-cells = <0>;
> > +
> > + status = "disabled";
> > +
> > + };
> > };
--
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