Messages in this thread Patch in this message | | | From | Andrey Smirnov <> | Subject | [PATCH] ARM: dts: imx7d: Invert legacy PCI irq mapping | Date | Mon, 9 Oct 2017 11:43:44 -0700 |
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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@kernel.org> Cc: yurovsky@gmail.com Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> ---
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
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