[PATCH] ARM: dts: DRA7: Add pcie1 dt node for EP mode

From: Kishon Vijay Abraham I <kishon@ti.com>
To: Tony Lindgren <tony@atomide.com>
Cc: <kishon@ti.com>, <nsekhar@ti.com>, <linux-omap@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-pci@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Subject: [PATCH] ARM: dts: DRA7: Add pcie1 dt node for EP mode
Date: Tue, 8 Aug 2017 11:10:24 +0530	[thread overview]
Message-ID: <20170808054024.18507-1-kishon@ti.com> (raw)

Add pcie1 dt node in order for the controller to operate in
endpoint mode. However since none of the dra7 based boards have
slots configured to operate in endpoint mode, keep EP mode
disabled.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 arch/arm/boot/dts/am571x-idk.dts                |  9 +++++++++
 arch/arm/boot/dts/am572x-idk.dts                |  7 ++++++-
 arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi |  7 ++++++-
 arch/arm/boot/dts/dra7-evm.dts                  |  4 ++++
 arch/arm/boot/dts/dra7.dtsi                     | 23 ++++++++++++++++++++++-
 arch/arm/boot/dts/dra72-evm-common.dtsi         |  4 ++++
 6 files changed, 51 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/am571x-idk.dts b/arch/arm/boot/dts/am571x-idk.dts
index adc70fb091a2..0c0bb4e93f25 100644
--- a/arch/arm/boot/dts/am571x-idk.dts
+++ b/arch/arm/boot/dts/am571x-idk.dts
@@ -96,3 +96,12 @@
 		status = "okay";
 	};
 };
+
+&pcie1_rc {
+	status = "okay";
+	gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+};
+
+&pcie1_ep {
+	gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+};
diff --git a/arch/arm/boot/dts/am572x-idk.dts b/arch/arm/boot/dts/am572x-idk.dts
index 940fcbe5380b..5ff75004afcf 100644
--- a/arch/arm/boot/dts/am572x-idk.dts
+++ b/arch/arm/boot/dts/am572x-idk.dts
@@ -88,7 +88,12 @@
 	load-gpios = <&gpio3 19 GPIO_ACTIVE_LOW>;
 };
 
-&pcie1 {
+&pcie1_rc {
+	status = "okay";
+	gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+};
+
+&pcie1_ep {
 	gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
 };
 
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
index fdfe5b16b806..d433a50cd18a 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
+++ b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
@@ -570,7 +570,12 @@
 	};
 };
 
-&pcie1 {
+&pcie1_rc {
+	status = "ok";
+	gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
+};
+
+&pcie1_ep {
 	gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
 };
 
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index f47fc4daf062..57bd75909d96 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -720,3 +720,7 @@
 		status = "okay";
 	};
 };
+
+&pcie1_rc {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 0f0f6f58bd18..e6f2c6a15dc1 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -196,6 +196,7 @@
 				scm_conf1: scm_conf@1c04 {
 					compatible = "syscon";
 					reg = <0x1c04 0x0020>;
+					#syscon-cells = <2>;
 				};
 
 				scm_conf_pcie: scm_conf@1c24 {
@@ -287,7 +288,11 @@
 			#address-cells = <1>;
 			ranges = <0x51000000 0x51000000 0x3000
 				  0x0	     0x20000000 0x10000000>;
-			pcie1: pcie@51000000 {
+			/**
+			 * To enable PCI endpoint mode, disable the pcie1_rc
+			 * node and enable pcie1_ep mode.
+			 */
+			pcie1_rc: pcie@51000000 {
 				compatible = "ti,dra7-pcie";
 				reg = <0x51000000 0x2000>, <0x51002000 0x14c>, <0x1000 0x2000>;
 				reg-names = "rc_dbics", "ti_conf", "config";
@@ -309,12 +314,28 @@
 						<0 0 0 2 &pcie1_intc 2>,
 						<0 0 0 3 &pcie1_intc 3>,
 						<0 0 0 4 &pcie1_intc 4>;
+				status = "disabled";
 				pcie1_intc: interrupt-controller {
 					interrupt-controller;
 					#address-cells = <0>;
 					#interrupt-cells = <1>;
 				};
 			};
+
+			pcie1_ep: pcie_ep@51000000 {
+				compatible = "ti,dra7-pcie-ep";
+				reg = <0x51000000 0x28>, <0x51002000 0x14c>, <0x51001000 0x28>, <0x1000 0x10000000>;
+				reg-names = "ep_dbics", "ti_conf", "ep_dbics2", "addr_space";
+				interrupts = <0 232 0x4>;
+				num-lanes = <1>;
+				num-ib-windows = <4>;
+				num-ob-windows = <16>;
+				ti,hwmods = "pcie1";
+				phys = <&pcie1_phy>;
+				phy-names = "pcie-phy0";
+				ti,syscon-unaligned-access = <&scm_conf1 0x14 2>;
+				status = "disabled";
+			};
 		};
 
 		axi@1 {
diff --git a/arch/arm/boot/dts/dra72-evm-common.dtsi b/arch/arm/boot/dts/dra72-evm-common.dtsi
index 85780549bc26..2e619748d948 100644
--- a/arch/arm/boot/dts/dra72-evm-common.dtsi
+++ b/arch/arm/boot/dts/dra72-evm-common.dtsi
@@ -564,3 +564,7 @@
 		status = "okay";
 	};
 };
+
+&pcie1_rc {
+	status = "okay";
+};
-- 
2.11.0
