linux-kernel - [PATCH v4 3/6] arm: dts: Change PCIe INTx mapping for Cygnus

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Message-Id: <1576814058-30003-4-git-send-email-srinath.mannam@broadcom.com>
Date:   Fri, 20 Dec 2019 09:24:15 +0530
From:   Srinath Mannam <srinath.mannam@...adcom.com>
To:     Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Ray Jui <rjui@...adcom.com>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Andrew Murray <andrew.murray@....com>,
        Arnd Bergmann <arnd@...db.de>
Cc:     bcm-kernel-feedback-list@...adcom.com, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Ray Jui <ray.jui@...adcom.com>,
        Srinath Mannam <srinath.mannam@...adcom.com>
Subject: [PATCH v4 3/6] arm: dts: Change PCIe INTx mapping for Cygnus

From: Ray Jui <ray.jui@...adcom.com>

Change the PCIe INTx mapping to model the 4 INTx interrupts in the
IRQ domain of the iProc PCIe controller itself

Signed-off-by: Ray Jui <ray.jui@...adcom.com>
Signed-off-by: Srinath Mannam <srinath.mannam@...adcom.com>
---
 arch/arm/boot/dts/bcm-cygnus.dtsi | 30 ++++++++++++++++++++++++++----
 1 file changed, 26 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/bcm-cygnus.dtsi b/arch/arm/boot/dts/bcm-cygnus.dtsi
index 2dac3ef..ca23e82 100644
--- a/arch/arm/boot/dts/bcm-cygnus.dtsi
+++ b/arch/arm/boot/dts/bcm-cygnus.dtsi
@@ -264,8 +264,11 @@
 			reg = <0x18012000 0x1000>;
 
 			#interrupt-cells = <1>;
-			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &gic GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-map-mask = <0 0 0 7>;
+			interrupt-map = <0 0 0 1 &pcie0_intc 0>,
+					<0 0 0 2 &pcie0_intc 1>,
+					<0 0 0 3 &pcie0_intc 2>,
+					<0 0 0 4 &pcie0_intc 3>;
 
 			linux,pci-domain = <0>;
 
@@ -292,6 +295,14 @@
 					     <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>,
 					     <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
 			};
+
+			pcie0_intc: interrupt-controller {
+				compatible = "brcm,iproc-intc";
+				interrupt-controller;
+				#interrupt-cells = <1>;
+				interrupt-parent = <&gic>;
+				interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
+			};
 		};
 
 		pcie1: pcie@...13000 {
@@ -299,8 +310,11 @@
 			reg = <0x18013000 0x1000>;
 
 			#interrupt-cells = <1>;
-			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &gic GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-map-mask = <0 0 0 7>;
+			interrupt-map = <0 0 0 1 &pcie1_intc 0>,
+					<0 0 0 2 &pcie1_intc 1>,
+					<0 0 0 3 &pcie1_intc 2>,
+					<0 0 0 4 &pcie1_intc 3>;
 
 			linux,pci-domain = <1>;
 
@@ -327,6 +341,14 @@
 					     <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>,
 					     <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
 			};
+
+			pcie1_intc: interrupt-controller {
+				compatible = "brcm,iproc-intc";
+				interrupt-controller;
+				#interrupt-cells = <1>;
+				interrupt-parent = <&gic>;
+				interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+			};
 		};
 
 		dma0: dma@...18000 {
-- 
2.7.4