diff options
| author | Dasnavis Sabiya <[email protected]> | 2024-05-29 13:52:59 +0530 |
|---|---|---|
| committer | Vignesh Raghavendra <[email protected]> | 2024-06-12 21:40:15 +0530 |
| commit | 2f79e7408ac1b22ce8abc4a22b92793a57a3077d (patch) | |
| tree | 550f145b5a739ebc5e5b3d12999a4ce673355906 | |
| parent | 7c4270de2806f80c06dc80c2cf2c8d6eb7c44c59 (diff) | |
arm64: dts: ti: k3-am69-sk: Add PCIe support
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]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vignesh Raghavendra <[email protected]>
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am69-sk.dts | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts index 6b301efbd1b5..3f655852244e 100644 --- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts @@ -1224,3 +1224,65 @@ }; }; }; + +&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>; +}; |