Add overlay to enable the PCIE1 instance of PCIe on AM68-SK-Base-Board in Endpoint mode of operation. PCIE1 on AM68-SK-Base-Board supports x2 Lane operation unlike its counterpart on J721S2-EVM which supports x1 Lane. Signed-off-by: Siddharth Vadapalli <s-vadapalli@xxxxxx> --- This patch has been newly introduced in this series. arch/arm64/boot/dts/ti/Makefile | 4 ++ .../ti/k3-am68-sk-base-board-pcie1-ep.dtso | 53 +++++++++++++++++++ 2 files changed, 57 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-am68-sk-base-board-pcie1-ep.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 03bacbc589ee..04438f7136b8 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -113,6 +113,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-j721e-sk-csi2-dual-imx219.dtbo # Boards with J721s2 SoC dtb-$(CONFIG_ARCH_K3) += k3-am68-sk-base-board.dtb +dtb-$(CONFIG_ARCH_K3) += k3-am68-sk-base-board-pcie1-ep.dtbo dtb-$(CONFIG_ARCH_K3) += k3-j721s2-common-proc-board.dtb dtb-$(CONFIG_ARCH_K3) += k3-j721s2-evm-gesi-exp-board.dtbo k3-j721s2-evm-dtbs := k3-j721s2-common-proc-board.dtb k3-j721s2-evm-gesi-exp-board.dtbo @@ -193,6 +194,8 @@ k3-am642-tqma64xxl-mbax4xxl-wlan-dtbs := \ k3-am642-tqma64xxl-mbax4xxl.dtb k3-am64-tqma64xxl-mbax4xxl-wlan.dtbo k3-am68-sk-base-board-csi2-dual-imx219-dtbs := k3-am68-sk-base-board.dtb \ k3-j721e-sk-csi2-dual-imx219.dtbo +k3-am68-sk-base-board-pcie1-ep-dtbs := k3-am68-sk-base-board.dtb \ + k3-am68-sk-base-board-pcie1-ep.dtbo k3-am69-sk-csi2-dual-imx219-dtbs := k3-am69-sk.dtb \ k3-j721e-sk-csi2-dual-imx219.dtbo k3-j7200-evm-pcie1-ep-dtbs := k3-j7200-common-proc-board.dtb \ @@ -232,6 +235,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \ k3-am642-tqma64xxl-mbax4xxl-sdcard.dtb \ k3-am642-tqma64xxl-mbax4xxl-wlan.dtb \ k3-am68-sk-base-board-csi2-dual-imx219.dtb \ + k3-am68-sk-base-board-pcie1-ep.dtb \ k3-am69-sk-csi2-dual-imx219.dtb \ k3-j7200-evm-pcie1-ep.dtb \ k3-j721e-common-proc-board-infotainment.dtb \ diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board-pcie1-ep.dtso b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board-pcie1-ep.dtso new file mode 100644 index 000000000000..455736e378cc --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board-pcie1-ep.dtso @@ -0,0 +1,53 @@ +// SPDX-License-Identifier: GPL-2.0-only OR MIT +/** + * DT Overlay for enabling PCIE1 instance in Endpoint Configuration with the + * AM68-SK board. + * + * AM68-SK Board Product Link: https://www.ti.com/tool/SK-AM68 + * + * 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. + */ +&pcie1_rc { + status = "disabled"; +}; + +&cbass_main { + #address-cells = <2>; + #size-cells = <2>; + interrupt-parent = <&gic500>; + + pcie1_ep: pcie-ep@2910000 { + compatible = "ti,j7200-pcie-ep", "ti,j721e-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>; + max-link-speed = <3>; + num-lanes = <2>; + power-domains = <&k3_pds 276 TI_SCI_PD_EXCLUSIVE>; + clocks = <&k3_clks 276 41>; + 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"; + ti,syscon-pcie-ctrl = <&scm_conf 0x074>; + }; +}; -- 2.43.0
