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Date: Tue, 12 Jul 2022 18:41:08 +0200
From: Marek Behún <kabel@...nel.org>
To: Andrew Lunn <andrew@...n.ch>,
Gregory Clement <gregory.clement@...tlin.com>,
Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc: Rob Herring <robh+dt@...nel.org>,
Pali Rohár <pali@...nel.org>,
linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Marek Behún <kabel@...nel.org>
Subject: [PATCH v2 10/10] ARM: dts: armada-39x.dtsi: Add definitions for PCIe legacy INTx interrupts
From: Pali Rohár <pali@...nel.org>
Add definitions for PCIe legacy INTx interrupts.
This is required for example in a scenario where a driver requests only
one of the legacy interrupts (INTA). Without this, the driver would be
notified on events on all 4 (INTA, INTB, INTC, INTD), even if it
requested only one of them.
Signed-off-by: Pali Rohár <pali@...nel.org>
Signed-off-by: Marek Behún <kabel@...nel.org>
---
arch/arm/boot/dts/armada-39x.dtsi | 56 ++++++++++++++++++++++++++-----
1 file changed, 48 insertions(+), 8 deletions(-)
diff --git a/arch/arm/boot/dts/armada-39x.dtsi b/arch/arm/boot/dts/armada-39x.dtsi
index e0b7c2099831..923b035a3ab3 100644
--- a/arch/arm/boot/dts/armada-39x.dtsi
+++ b/arch/arm/boot/dts/armada-39x.dtsi
@@ -438,16 +438,26 @@ pcie@1,0 {
reg = <0x0800 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
+ interrupt-names = "intx";
+ interrupts-extended = <&gic GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
bus-range = <0x00 0xff>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic GIC_SPI 29 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>;
marvell,pcie-port = <0>;
marvell,pcie-lane = <0>;
clocks = <&gateclk 8>;
status = "disabled";
+
+ pcie1_intc: interrupt-controller {
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
};
/* x1 port */
@@ -457,16 +467,26 @@ pcie@2,0 {
reg = <0x1000 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
+ interrupt-names = "intx";
+ interrupts-extended = <&gic GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
0x81000000 0 0 0x81000000 0x2 0 1 0>;
bus-range = <0x00 0xff>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pcie2_intc 0>,
+ <0 0 0 2 &pcie2_intc 1>,
+ <0 0 0 3 &pcie2_intc 2>,
+ <0 0 0 4 &pcie2_intc 3>;
marvell,pcie-port = <1>;
marvell,pcie-lane = <0>;
clocks = <&gateclk 5>;
status = "disabled";
+
+ pcie2_intc: interrupt-controller {
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
};
/* x1 port */
@@ -476,16 +496,26 @@ pcie@3,0 {
reg = <0x1800 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
+ interrupt-names = "intx";
+ interrupts-extended = <&gic GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x3 0 1 0
0x81000000 0 0 0x81000000 0x3 0 1 0>;
bus-range = <0x00 0xff>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pcie3_intc 0>,
+ <0 0 0 2 &pcie3_intc 1>,
+ <0 0 0 3 &pcie3_intc 2>,
+ <0 0 0 4 &pcie3_intc 3>;
marvell,pcie-port = <2>;
marvell,pcie-lane = <0>;
clocks = <&gateclk 6>;
status = "disabled";
+
+ pcie3_intc: interrupt-controller {
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
};
/*
@@ -498,16 +528,26 @@ pcie@4,0 {
reg = <0x2000 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
+ interrupt-names = "intx";
+ interrupts-extended = <&gic GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x4 0 1 0
0x81000000 0 0 0x81000000 0x4 0 1 0>;
bus-range = <0x00 0xff>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pcie4_intc 0>,
+ <0 0 0 2 &pcie4_intc 1>,
+ <0 0 0 3 &pcie4_intc 2>,
+ <0 0 0 4 &pcie4_intc 3>;
marvell,pcie-port = <3>;
marvell,pcie-lane = <0>;
clocks = <&gateclk 7>;
status = "disabled";
+
+ pcie4_intc: interrupt-controller {
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
};
};
--
2.35.1
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