linux-kernel - [PATCH v2 2/5] arm64: dts: ti: k3-j721e: Add PCIe ctrl node to scm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250402113201.151195-3-j-choudhary@ti.com>
Date: Wed, 2 Apr 2025 17:01:58 +0530
From: Jayesh Choudhary <j-choudhary@...com>
To: <robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <nm@...com>, <vigneshr@...com>, <afd@...com>, <s-vadapalli@...com>,
        <linux-kernel@...r.kernel.org>
CC: <kristo@...nel.org>, <rogerq@...nel.org>, <kishon@...nel.org>,
        <devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <j-choudhary@...com>
Subject: [PATCH v2 2/5] arm64: dts: ti: k3-j721e: Add PCIe ctrl node to scm_conf region

From: Andrew Davis <afd@...com>

This region is used for controlling the function of the PCIe IP. It is
compatible with "ti,j784s4-pcie-ctrl", add this here and use it with
the PCIe nodes.

Signed-off-by: Andrew Davis <afd@...com>
[j-choudhary@...com: Add changes to k3-j721e-evm-pcie1-ep.dtso]
Signed-off-by: Jayesh Choudhary <j-choudhary@...com>
---
 .../boot/dts/ti/k3-j721e-evm-pcie0-ep.dtso    |  2 +-
 .../boot/dts/ti/k3-j721e-evm-pcie1-ep.dtso    |  2 +-
 arch/arm64/boot/dts/ti/k3-j721e-main.dtsi     | 28 ++++++++++++++++---
 3 files changed, 26 insertions(+), 6 deletions(-)

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
index 4062709d6579..a8a502a6207f 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-evm-pcie0-ep.dtso
+++ b/arch/arm64/boot/dts/ti/k3-j721e-evm-pcie0-ep.dtso
@@ -38,7 +38,7 @@ pcie0_ep: pcie-ep@...0000 {
 		reg-names = "intd_cfg", "user_cfg", "reg", "mem";
 		interrupt-names = "link_state";
 		interrupts = <GIC_SPI 318 IRQ_TYPE_EDGE_RISING>;
-		ti,syscon-pcie-ctrl = <&scm_conf 0x4070>;
+		ti,syscon-pcie-ctrl = <&pcie0_ctrl 0x0>;
 		max-link-speed = <3>;
 		num-lanes = <1>;
 		power-domains = <&k3_pds 239 TI_SCI_PD_EXCLUSIVE>;
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-evm-pcie1-ep.dtso b/arch/arm64/boot/dts/ti/k3-j721e-evm-pcie1-ep.dtso
index a8cccdcf3e3b..436085157a69 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-evm-pcie1-ep.dtso
+++ b/arch/arm64/boot/dts/ti/k3-j721e-evm-pcie1-ep.dtso
@@ -48,6 +48,6 @@ pcie1_ep: pcie-ep@...0000 {
 		dma-coherent;
 		phys = <&serdes1_pcie_link>;
 		phy-names = "pcie-phy";
-		ti,syscon-pcie-ctrl = <&scm_conf 0x4074>;
+		ti,syscon-pcie-ctrl = <&pcie1_ctrl 0x0>;
 	};
 };
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index af3d730154ac..d7263ad43163 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -44,6 +44,26 @@ scm_conf: scm-conf@...000 {
 		#size-cells = <1>;
 		ranges = <0x0 0x0 0x00100000 0x1c000>;
 
+		pcie0_ctrl: pcie-ctrl@...0 {
+			compatible = "ti,j784s4-pcie-ctrl", "syscon";
+			reg = <0x4070 0x4>;
+		};
+
+		pcie1_ctrl: pcie-ctrl@...4 {
+			compatible = "ti,j784s4-pcie-ctrl", "syscon";
+			reg = <0x4074 0x4>;
+		};
+
+		pcie2_ctrl: pcie-ctrl@...8 {
+			compatible = "ti,j784s4-pcie-ctrl", "syscon";
+			reg = <0x4078 0x4>;
+		};
+
+		pcie3_ctrl: pcie-ctrl@...c {
+			compatible = "ti,j784s4-pcie-ctrl", "syscon";
+			reg = <0x407c 0x4>;
+		};
+
 		serdes_ln_ctrl: mux-controller@...0 {
 			compatible = "reg-mux";
 			reg = <0x4080 0x50>;
@@ -946,7 +966,7 @@ pcie0_rc: pcie@...0000 {
 		interrupt-names = "link_state";
 		interrupts = <GIC_SPI 318 IRQ_TYPE_EDGE_RISING>;
 		device_type = "pci";
-		ti,syscon-pcie-ctrl = <&scm_conf 0x4070>;
+		ti,syscon-pcie-ctrl = <&pcie0_ctrl 0x0>;
 		max-link-speed = <3>;
 		num-lanes = <2>;
 		power-domains = <&k3_pds 239 TI_SCI_PD_EXCLUSIVE>;
@@ -975,7 +995,7 @@ pcie1_rc: pcie@...0000 {
 		interrupt-names = "link_state";
 		interrupts = <GIC_SPI 330 IRQ_TYPE_EDGE_RISING>;
 		device_type = "pci";
-		ti,syscon-pcie-ctrl = <&scm_conf 0x4074>;
+		ti,syscon-pcie-ctrl = <&pcie1_ctrl 0x0>;
 		max-link-speed = <3>;
 		num-lanes = <2>;
 		power-domains = <&k3_pds 240 TI_SCI_PD_EXCLUSIVE>;
@@ -1004,7 +1024,7 @@ pcie2_rc: pcie@...0000 {
 		interrupt-names = "link_state";
 		interrupts = <GIC_SPI 342 IRQ_TYPE_EDGE_RISING>;
 		device_type = "pci";
-		ti,syscon-pcie-ctrl = <&scm_conf 0x4078>;
+		ti,syscon-pcie-ctrl = <&pcie2_ctrl 0x0>;
 		max-link-speed = <3>;
 		num-lanes = <2>;
 		power-domains = <&k3_pds 241 TI_SCI_PD_EXCLUSIVE>;
@@ -1033,7 +1053,7 @@ pcie3_rc: pcie@...0000 {
 		interrupt-names = "link_state";
 		interrupts = <GIC_SPI 354 IRQ_TYPE_EDGE_RISING>;
 		device_type = "pci";
-		ti,syscon-pcie-ctrl = <&scm_conf 0x407c>;
+		ti,syscon-pcie-ctrl = <&pcie3_ctrl 0x0>;
 		max-link-speed = <3>;
 		num-lanes = <2>;
 		power-domains = <&k3_pds 242 TI_SCI_PD_EXCLUSIVE>;
-- 
2.34.1