[PATCH 3/5] arm64: dts: ti: k3-am642-evm: Enable PCIe and SERDES
From: Kishon Vijay Abraham I <hidden>
Date: 2021-05-12 15:10:32
Also in:
linux-arm-kernel, lkml
Subsystem:
arm/texas instruments k3 architecture, the rest · Maintainers:
Nishanth Menon, Vignesh Raghavendra, Tero Kristo, Linus Torvalds
AM642 EVM has a x4 lane PCIe connector. Enable PCIe in RC mode here. Signed-off-by: Kishon Vijay Abraham I <redacted> --- arch/arm64/boot/dts/ti/k3-am642-evm.dts | 30 +++++++++++++++++++++++++ 1 file changed, 30 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index dad0efa961ed..8c27f563a390 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts@@ -5,6 +5,8 @@ /dts-v1/; +#include <dt-bindings/phy/phy.h> +#include <dt-bindings/mux/ti-serdes.h> #include <dt-bindings/leds/common.h> #include <dt-bindings/gpio/gpio.h> #include <dt-bindings/net/ti-dp83867.h>
@@ -466,3 +468,31 @@ &mailbox0_cluster7 { status = "disabled"; }; + +&serdes_ln_ctrl { + idle-states = <AM64_SERDES0_LANE0_PCIE0>; +}; + +&serdes0 { + serdes0_pcie_link: phy@0 { + reg = <0>; + cdns,num-lanes = <1>; + #phy-cells = <0>; + cdns,phy-type = <PHY_TYPE_PCIE>; + resets = <&serdes_wiz0 1>; + }; +}; + +&pcie0_rc { + reset-gpios = <&exp1 5 GPIO_ACTIVE_HIGH>; + phys = <&serdes0_pcie_link>; + phy-names = "pcie-phy"; + num-lanes = <1>; +}; + +&pcie0_ep { + phys = <&serdes0_pcie_link>; + phy-names = "pcie-phy"; + num-lanes = <1>; + status = "disabled"; +};
--
2.17.1