[PATCH] ARM: dts: imx7d: Invert legacy PCI irq mapping
From: Andrey Smirnov
Date: Mon Oct 09 2017 - 14:44:09 EST
According to i.MX7D reference manual (Rev. 0.1, table 7-1, page 1221)
legacy PCI interrupt mapping is as follows:
- PCIE INT A is IRQ 122
- PCIE INT B is IRQ 123
- PCIE INT C is IRQ 124
- PCIE INT D is IRQ 125
Invert the mapping information in corresponding DT node to reflect
that.
Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
Cc: yurovsky@xxxxxxxxx
Cc: Fabio Estevam <fabio.estevam@xxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
Discovered by using custom build of QEMU[1] when using together with
"usb-ehci" which is, AFAIU, ICH4. A bit of a convoluted use-case, but
I thought it would still be worht fixing.
[1] https://github.com/ndreys/qemu/tree/imx7-support-upstreaming
arch/arm/boot/dts/imx7d.dtsi | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi
index f46814a7ea44..4d308d17f040 100644
--- a/arch/arm/boot/dts/imx7d.dtsi
+++ b/arch/arm/boot/dts/imx7d.dtsi
@@ -144,10 +144,10 @@
interrupt-names = "msi";
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 0x7>;
- interrupt-map = <0 0 0 1 &intc GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>,
- <0 0 0 2 &intc GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
- <0 0 0 3 &intc GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
- <0 0 0 4 &intc GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-map = <0 0 0 1 &intc GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 2 &intc GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 3 &intc GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 4 &intc GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX7D_PCIE_CTRL_ROOT_CLK>,
<&clks IMX7D_PLL_ENET_MAIN_100M_CLK>,
<&clks IMX7D_PCIE_PHY_ROOT_CLK>;
--
2.13.5