[PATCH v2 4/5] arm64: Juno: Add support for the PCIe host bridge on Juno R1

From: Liviu Dudau
Date: Fri Oct 09 2015 - 12:58:49 EST


Juno R1 board sports a functional PCIe host bridge that is
compliant with the SBSA standard found [1] here. With the right
firmware that initialises the XpressRICH3 controller one can
use the generic Host Bridge driver to use the PCIe hardware.

Signed-off-by: Liviu Dudau <Liviu.Dudau@xxxxxxx>

[1] http://infocenter.arm.com/help/topic/com.arm.doc.den0029a/
---
arch/arm64/boot/dts/arm/juno-r1.dts | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)

diff --git a/arch/arm64/boot/dts/arm/juno-r1.dts b/arch/arm64/boot/dts/arm/juno-r1.dts
index c627511..a702a6b 100644
--- a/arch/arm64/boot/dts/arm/juno-r1.dts
+++ b/arch/arm64/boot/dts/arm/juno-r1.dts
@@ -109,7 +109,26 @@

#include "juno-base.dtsi"

+ pcie-controller@40000000 {
+ compatible = "arm,juno-r1-pcie", "plda,xpressrich3", "pci-host-ecam-generic";
+ device_type = "pci";
+ reg = <0 0x40000000 0 0x10000000>; /* ECAM config space */
+ bus-range = <0 255>;
+ linux,pci-domain = <0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ dma-coherent;
+ ranges = <0x01000000 0x00 0x5f800000 0x00 0x5f800000 0x0 0x00800000
+ 0x02000000 0x00 0x50000000 0x00 0x50000000 0x0 0x08000000
+ 0x42000000 0x40 0x00000000 0x40 0x00000000 0x1 0x00000000>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &gic 0 0 0 136 4
+ 0 0 0 2 &gic 0 0 0 137 4
+ 0 0 0 3 &gic 0 0 0 138 4
+ 0 0 0 4 &gic 0 0 0 139 4>;
+ msi-parent = <&v2m_0>;
+ };
};

&memtimer {
--
2.6.0

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