From 3942697901eb5340dc51202352f035ae191c37f2 Mon Sep 17 00:00:00 2001 From: Siddharth Vadapalli Date: Mon, 11 Dec 2023 17:25:34 +0530 Subject: arm64: dts: ti: k3-j721e-evm: Add overlay for PCIE0 Endpoint Mode Add overlay to enable the PCIE0 instance of PCIe on J721E-EVM in Endpoint mode of operation. Signed-off-by: Siddharth Vadapalli Reviewed-by: Ravi Gunasekaran Reviewed-by: Andrew Davis Link: https://lore.kernel.org/r/20231211115535.1264353-2-s-vadapalli@ti.com Signed-off-by: Nishanth Menon --- arch/arm64/boot/dts/ti/Makefile | 6 ++- arch/arm64/boot/dts/ti/k3-j721e-evm-pcie0-ep.dtso | 53 +++++++++++++++++++++++ 2 files changed, 58 insertions(+), 1 deletion(-) create mode 100644 arch/arm64/boot/dts/ti/k3-j721e-evm-pcie0-ep.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 1ac47876bc99..c6606b7678a3 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -67,6 +67,7 @@ k3-j721e-evm-dtbs := k3-j721e-common-proc-board.dtb k3-j721e-evm-quad-port-eth-e dtb-$(CONFIG_ARCH_K3) += k3-j721e-beagleboneai64.dtb dtb-$(CONFIG_ARCH_K3) += k3-j721e-evm.dtb dtb-$(CONFIG_ARCH_K3) += k3-j721e-evm-gesi-exp-board.dtbo +dtb-$(CONFIG_ARCH_K3) += k3-j721e-evm-pcie0-ep.dtbo dtb-$(CONFIG_ARCH_K3) += k3-j721e-sk.dtb # Boards with J721s2 SoC @@ -103,6 +104,8 @@ k3-am642-tqma64xxl-mbax4xxl-sdcard-dtbs := \ k3-am642-tqma64xxl-mbax4xxl.dtb k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo k3-am642-tqma64xxl-mbax4xxl-wlan-dtbs := \ k3-am642-tqma64xxl-mbax4xxl.dtb k3-am64-tqma64xxl-mbax4xxl-wlan.dtbo +k3-j721e-evm-pcie0-ep-dtbs := k3-j721e-common-proc-board.dtb \ + k3-j721e-evm-pcie0-ep.dtbo dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \ k3-am625-beagleplay-csi2-tevi-ov5640.dtb \ k3-am625-sk-csi2-imx219.dtb \ @@ -113,7 +116,8 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \ k3-am62a7-sk-csi2-imx219.dtb \ k3-am62a7-sk-csi2-ov5640.dtb \ k3-am642-tqma64xxl-mbax4xxl-sdcard.dtb \ - k3-am642-tqma64xxl-mbax4xxl-wlan.dtb + k3-am642-tqma64xxl-mbax4xxl-wlan.dtb \ + k3-j721e-evm-pcie0-ep.dtb # Enable support for device-tree overlays DTC_FLAGS_k3-am625-beagleplay += -@ diff --git a/arch/arm64/boot/dts/ti/k3-j721e-evm-pcie0-ep.dtso b/arch/arm64/boot/dts/ti/k3-j721e-evm-pcie0-ep.dtso new file mode 100644 index 000000000000..0c82a13b65a4 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-j721e-evm-pcie0-ep.dtso @@ -0,0 +1,53 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * DT Overlay for enabling PCIE0 instance in Endpoint Configuration with the + * J7 common processor board. + * + * J7 Common Processor Board Product Link: https://www.ti.com/tool/J721EXCPXEVM + * + * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/ + */ + +/dts-v1/; +/plugin/; + +#include +#include + +#include "k3-pinctrl.h" + +/* + * Since Root Complex and Endpoint modes are mutually exclusive + * disable Root Complex mode. + */ +&pcie0_rc { + status = "disabled"; +}; + +&cbass_main { + #address-cells = <2>; + #size-cells = <2>; + interrupt-parent = <&gic500>; + + pcie0_ep: pcie-ep@2900000 { + compatible = "ti,j721e-pcie-ep"; + reg = <0x00 0x02900000 0x00 0x1000>, + <0x00 0x02907000 0x00 0x400>, + <0x00 0x0d000000 0x00 0x00800000>, + <0x00 0x10000000 0x00 0x08000000>; + reg-names = "intd_cfg", "user_cfg", "reg", "mem"; + interrupt-names = "link_state"; + interrupts = ; + ti,syscon-pcie-ctrl = <&scm_conf 0x4070>; + max-link-speed = <3>; + num-lanes = <1>; + power-domains = <&k3_pds 239 TI_SCI_PD_EXCLUSIVE>; + clocks = <&k3_clks 239 1>; + clock-names = "fck"; + max-functions = /bits/ 8 <6>; + max-virtual-functions = /bits/ 8 <4 4 4 4 0 0>; + dma-coherent; + phys = <&serdes0_pcie_link>; + phy-names = "pcie-phy"; + }; +}; -- cgit v1.2.3