Add overlay to enable the PCIe0 and PCIe1 instances of PCIe on J784S4-EVM in Endpoint mode of operation. Signed-off-by: Siddharth Vadapalli <s-vadapalli@xxxxxx> --- v1: https://lore.kernel.org/r/20240129114749.1197579-4-s-vadapalli@xxxxxx/ Changes since v1: - Updated "ti,syscon-pcie-ctrl" property to refer to the "pcie0_ctrl" and "pcie1_ctrl" nodes within "scm_conf". arch/arm64/boot/dts/ti/Makefile | 7 +- .../dts/ti/k3-j784s4-evm-pcie0-pcie1-ep.dtso | 79 +++++++++++++++++++ 2 files changed, 85 insertions(+), 1 deletion(-) create mode 100644 arch/arm64/boot/dts/ti/k3-j784s4-evm-pcie0-pcie1-ep.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 2c327cc320cf..8673685e7528 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -101,6 +101,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-j722s-evm.dtb # Boards with J784s4 SoC dtb-$(CONFIG_ARCH_K3) += k3-am69-sk.dtb dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm.dtb +dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm-pcie0-pcie1-ep.dtbo # Build time test only, enabled by CONFIG_OF_ALL_DTBS k3-am625-beagleplay-csi2-ov5640-dtbs := k3-am625-beagleplay.dtb \ @@ -148,6 +149,8 @@ k3-j721e-sk-csi2-dual-imx219-dtbs := k3-j721e-sk.dtb \ k3-j721e-sk-csi2-dual-imx219.dtbo k3-j721s2-evm-pcie1-ep-dtbs := k3-j721s2-common-proc-board.dtb \ k3-j721s2-evm-pcie1-ep.dtbo +k3-j784s4-evm-pcie0-pcie1-ep-dtbs := k3-j784s4-evm.dtb \ + k3-j784s4-evm-pcie0-pcie1-ep.dtbo dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \ k3-am625-beagleplay-csi2-tevi-ov5640.dtb \ k3-am625-sk-csi2-imx219.dtb \ @@ -168,7 +171,8 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \ k3-am69-sk-csi2-dual-imx219.dtb \ k3-j721e-evm-pcie0-ep.dtb \ k3-j721e-sk-csi2-dual-imx219.dtb \ - k3-j721s2-evm-pcie1-ep.dtb + k3-j721s2-evm-pcie1-ep.dtb \ + k3-j784s4-evm-pcie0-pcie1-ep.dtb # Enable support for device-tree overlays DTC_FLAGS_k3-am625-beagleplay += -@ @@ -186,3 +190,4 @@ DTC_FLAGS_k3-am69-sk += -@ DTC_FLAGS_k3-j721e-common-proc-board += -@ DTC_FLAGS_k3-j721e-sk += -@ DTC_FLAGS_k3-j721s2-common-proc-board += -@ +DTC_FLAGS_k3-j784s4-evm += -@ diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-evm-pcie0-pcie1-ep.dtso b/arch/arm64/boot/dts/ti/k3-j784s4-evm-pcie0-pcie1-ep.dtso new file mode 100644 index 000000000000..685305092bd8 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-j784s4-evm-pcie0-pcie1-ep.dtso @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: GPL-2.0-only OR MIT +/** + * DT Overlay for enabling PCIE0 and PCIE1 instances in Endpoint Configuration + * on J784S4 EVM. + * + * J784S4 EVM Product Link: https://www.ti.com/tool/J784S4XEVM + * + * Copyright (C) 2024 Texas Instruments Incorporated - https://www.ti.com/ + */ + +/dts-v1/; +/plugin/; + +#include <dt-bindings/interrupt-controller/arm-gic.h> +#include <dt-bindings/soc/ti,sci_pm_domain.h> + +#include "k3-pinctrl.h" + +/* + * Since Root Complex and Endpoint modes are mutually exclusive + * disable Root Complex mode. + */ +&pcie0_rc { + status = "disabled"; +}; + +&pcie1_rc { + status = "disabled"; +}; + +&cbass_main { + #address-cells = <2>; + #size-cells = <2>; + interrupt-parent = <&gic500>; + + pcie0_ep: pcie-ep@2900000 { + compatible = "ti,j784s4-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 = <GIC_SPI 318 IRQ_TYPE_EDGE_RISING>; + ti,syscon-pcie-ctrl = <&pcie0_ctrl 0x0>; + max-link-speed = <3>; + num-lanes = <4>; + power-domains = <&k3_pds 332 TI_SCI_PD_EXCLUSIVE>; + clocks = <&k3_clks 332 0>; + clock-names = "fck"; + max-functions = /bits/ 8 <6>; + max-virtual-functions = /bits/ 8 <4 4 4 4 0 0>; + dma-coherent; + phys = <&serdes1_pcie0_link>; + phy-names = "pcie-phy"; + }; + + pcie1_ep: pcie-ep@2910000 { + compatible = "ti,j784s4-pcie-ep"; + reg = <0x00 0x02910000 0x00 0x1000>, + <0x00 0x02917000 0x00 0x400>, + <0x00 0x0d800000 0x00 0x00800000>, + <0x00 0x18000000 0x00 0x08000000>; + reg-names = "intd_cfg", "user_cfg", "reg", "mem"; + interrupt-names = "link_state"; + interrupts = <GIC_SPI 330 IRQ_TYPE_EDGE_RISING>; + ti,syscon-pcie-ctrl = <&pcie1_ctrl 0x0>; + max-link-speed = <3>; + num-lanes = <2>; + power-domains = <&k3_pds 333 TI_SCI_PD_EXCLUSIVE>; + clocks = <&k3_clks 333 0>; + clock-names = "fck"; + max-functions = /bits/ 8 <6>; + max-virtual-functions = /bits/ 8 <4 4 4 4 0 0>; + dma-coherent; + phys = <&serdes0_pcie1_link>; + phy-names = "pcie-phy"; + }; +}; -- 2.40.1
