From: Dasnavis Sabiya <[email protected]>
The AM69-SK board has 3 instances of PCIe namely PCIe0, PCIe1 and PCIe3.
The x4 PCIe0 instance is connected to a Card Edge connector via SERDES1.
The x2 PCIe1 instance is connected to an M.2 M Key connector via SERDES0.
The x1 PCIe3 instance is connected to an M.2 E Key connector via SERDES0.
Add device-tree support for enabling all 3 PCIe instances in Root-Complex
mode of operation.
Signed-off-by: Dasnavis Sabiya <[email protected]>
Signed-off-by: Siddharth Vadapalli <[email protected]>
---
This patch has been added newly in this series.
arch/arm64/boot/dts/ti/k3-am69-sk.dts | 60 +++++++++++++++++++++++++++
1 file changed, 60 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
index d88651c297a2..14c359d810d7 100644
--- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
@@ -1203,3 +1203,63 @@ partition@3fc0000 {
};
};
};
+
+&serdes_ln_ctrl {
+ idle-states = <J784S4_SERDES0_LANE0_PCIE1_LANE0>, <J784S4_SERDES0_LANE1_PCIE1_LANE1>,
+ <J784S4_SERDES0_LANE2_PCIE3_LANE0>, <J784S4_SERDES0_LANE3_USB>,
+ <J784S4_SERDES1_LANE0_PCIE0_LANE0>, <J784S4_SERDES1_LANE1_PCIE0_LANE1>,
+ <J784S4_SERDES1_LANE2_PCIE0_LANE2>, <J784S4_SERDES1_LANE3_PCIE0_LANE3>;
+};
+
+&serdes_wiz0 {
+ status = "okay";
+};
+
+&serdes0 {
+ status = "okay";
+ serdes0_pcie_link: phy@0 {
+ reg = <0>;
+ cdns,num-lanes = <3>;
+ #phy-cells = <0>;
+ cdns,phy-type = <PHY_TYPE_PCIE>;
+ resets = <&serdes_wiz0 1>, <&serdes_wiz0 2>, <&serdes_wiz0 3>;
+ };
+};
+
+&serdes_wiz1 {
+ status = "okay";
+};
+
+&serdes1 {
+ status = "okay";
+ serdes1_pcie_link: phy@0 {
+ reg = <0>;
+ cdns,num-lanes = <4>;
+ #phy-cells = <0>;
+ cdns,phy-type = <PHY_TYPE_PCIE>;
+ resets = <&serdes_wiz1 1>, <&serdes_wiz1 2>, <&serdes_wiz1 3>, <&serdes_wiz1 4>;
+ };
+};
+
+&pcie0_rc {
+ status = "okay";
+ reset-gpios = <&exp1 4 GPIO_ACTIVE_HIGH>;
+ phys = <&serdes1_pcie_link>;
+ phy-names = "pcie-phy";
+};
+
+&pcie1_rc {
+ status = "okay";
+ reset-gpios = <&exp1 5 GPIO_ACTIVE_HIGH>;
+ phys = <&serdes0_pcie_link>;
+ phy-names = "pcie-phy";
+ num-lanes = <2>;
+};
+
+&pcie3_rc {
+ status = "okay";
+ reset-gpios = <&exp1 6 GPIO_ACTIVE_HIGH>;
+ phys = <&serdes0_pcie_link>;
+ phy-names = "pcie-phy";
+ num-lanes = <1>;
+};
--
2.40.1