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Message-ID: <20240520101149.3243151-4-s-vadapalli@ti.com>
Date: Mon, 20 May 2024 15:41:49 +0530
From: Siddharth Vadapalli <s-vadapalli@...com>
To: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
<krzk+dt@...nel.org>, <conor+dt@...nel.org>
CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, <danishanwar@...com>,
<srk@...com>, <s-vadapalli@...com>
Subject: [PATCH v2 3/3] arm64: dts: ti: k3-j784s4-evm: Add overlay for PCIe0 and PCIe1 EP Mode
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@...com>
---
v1:
https://lore.kernel.org/r/20240129114749.1197579-4-s-vadapalli@ti.com/
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@...0000 {
+ 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@...0000 {
+ 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
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