On ipq9574, there are 4 PCIe controllers. Describe the pcie2 and pcie3
nodes, and their PHYs in devicetree.
The pcie0 and pcie1 controllers use a gen3x1 PHY, which is not
currently supported. Hence, only pcie2 and pcie3 are described. Only
pcie2 was tested because my devboard only has conenctions to pcie2.
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@xxxxxxxxx>
---
arch/arm64/boot/dts/qcom/ipq9574.dtsi | 178 +++++++++++++++++++++++++-
1 file changed, 176 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
index 7f2e5cbf3bbb..c391886cf9ab 100644
--- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
@@ -300,8 +300,8 @@ gcc: clock-controller@1800000 {
<0>,
<0>,
<0>,
- <0>,
- <0>,
+ <&pcie2_phy>,
+ <&pcie3_phy>,
<0>;
#clock-cells = <1>;
#reset-cells = <1>;
@@ -745,6 +745,180 @@ frame@b128000 {
status = "disabled";
};
};
+
+ pcie2_phy: phy@8c000 {
+ compatible = "qcom,ipq9574-qmp-gen3x2-pcie-phy";
+ reg = <0x0008c000 0x14f4>;
+
+ clocks = <&gcc GCC_PCIE2_AUX_CLK>,
+ <&gcc GCC_PCIE2_AHB_CLK>,
+ <&gcc GCC_PCIE2_PIPE_CLK>;
+ clock-names = "aux",
+ "cfg_ahb",
+ "pipe";
+
+ clock-output-names = "pcie_phy2_pipe_clk";
+ #clock-cells = <0>;
+ #phy-cells = <0>;
+
+ resets = <&gcc GCC_PCIE2_PHY_BCR>,
+ <&gcc GCC_PCIE2PHY_PHY_BCR>;
+ reset-names = "phy",
+ "common";
+ status = "disabled";
+ };
+
+ pcie3_phy: phy@f4000 {
+ compatible = "qcom,ipq9574-qmp-gen3x2-pcie-phy";
+ reg = <0x000f4000 0x14f4>;
+
+ clocks = <&gcc GCC_PCIE3_AUX_CLK>,
+ <&gcc GCC_PCIE3_AHB_CLK>,
+ <&gcc GCC_PCIE3_PIPE_CLK>;
+ clock-names = "aux",
+ "cfg_ahb",
+ "pipe";
+
+ clock-output-names = "pcie_phy3_pipe_clk";
+ #clock-cells = <0>;
+ #phy-cells = <0>;
+
+ resets = <&gcc GCC_PCIE3_PHY_BCR>,
+ <&gcc GCC_PCIE3PHY_PHY_BCR>;
+ reset-names = "phy",
+ "common";
+ status = "disabled";
+ };
+
+ /* TODO: Populate pcie0/pcie1 when gen3x1 phy support is added. */
+
+ pcie2: pcie@20000000 {
+ compatible = "qcom,pcie-ipq9574";
+ reg = <0x20000000 0xf1d>,
+ <0x20000f20 0xa8>,
+ <0x20001000 0x1000>,
+ <0x00088000 0x4000>,
+ <0x20100000 0x1000>;
+ reg-names = "dbi", "elbi", "atu", "parf", "config";
+
+ ranges = <0x81000000 0x0 0x20200000 0x20200000 0x0 0x00100000>,
+ <0x82000000 0x0 0x20300000 0x20300000 0x0 0x07d00000>;
