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authorSiddharth Vadapalli <s-vadapalli@ti.com>2024-12-05 16:20:36 +0530
committerNishanth Menon <nm@ti.com>2025-01-08 09:22:00 -0600
commitb09cc758bc015a100b440d5c70098aebd0ddcd43 (patch)
treefb265dccc228419de10aa4b4d37feedef32130d8
parent58efed5800e901cf9b320c56e8879878f09b8291 (diff)
arm64: dts: ti: k3-am69-sk: Add overlay for PCIE0 Endpoint Mode
Add overlay to enable the PCIE0 instance of PCIe on AM69-SK in Endpoint mode of operation. Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com> Link: https://lore.kernel.org/r/20241205105041.749576-5-s-vadapalli@ti.com Signed-off-by: Nishanth Menon <nm@ti.com>
-rw-r--r--arch/arm64/boot/dts/ti/Makefile4
-rw-r--r--arch/arm64/boot/dts/ti/k3-am69-sk-pcie0-ep.dtso53
2 files changed, 57 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 04438f7136b8..db5ae27467e7 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -126,6 +126,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-j722s-evm.dtb
# Boards with J784s4 SoC
dtb-$(CONFIG_ARCH_K3) += k3-am69-sk.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am69-sk-pcie0-ep.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm.dtb
dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm-pcie0-pcie1-ep.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm-quad-port-eth-exp1.dtbo
@@ -198,6 +199,8 @@ 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-am69-sk-pcie0-ep-dtbs := k3-am69-sk.dtb \
+ k3-am69-sk-pcie0-ep.dtbo
k3-j7200-evm-pcie1-ep-dtbs := k3-j7200-common-proc-board.dtb \
k3-j7200-evm-pcie1-ep.dtbo
k3-j721e-common-proc-board-infotainment-dtbs := k3-j721e-common-proc-board.dtb \
@@ -237,6 +240,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.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-am69-sk-pcie0-ep.dtb \
k3-j7200-evm-pcie1-ep.dtb \
k3-j721e-common-proc-board-infotainment.dtb \
k3-j721e-evm-pcie0-ep.dtb \
diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk-pcie0-ep.dtso b/arch/arm64/boot/dts/ti/k3-am69-sk-pcie0-ep.dtso
new file mode 100644
index 000000000000..9a5bcf282a9e
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am69-sk-pcie0-ep.dtso
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/**
+ * DT Overlay for enabling PCIE0 instances of PCIe in Endpoint Configuration
+ * on AM69-SK.
+ *
+ * AM69-SK Product Link: https://www.ti.com/tool/SK-AM69
+ *
+ * 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";
+};
+
+&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>;
+ 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_pcie_link>;
+ phy-names = "pcie-phy";
+ ti,syscon-pcie-ctrl = <&pcie0_ctrl 0x0>;
+ };
+};