forked from Minki/linux
a13690297c
Following the addition of the Alpine MSIX driver, this patch adds the corresponding bindings documentation. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Tsahee Zidenberg <tsahee@annapurnalabs.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
27 lines
755 B
Plaintext
27 lines
755 B
Plaintext
Alpine MSIX controller
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See arm,gic-v3.txt for SPI and MSI definitions.
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Required properties:
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- compatible: should be "al,alpine-msix"
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- reg: physical base address and size of the registers
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- interrupt-parent: specifies the parent interrupt controller.
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- interrupt-controller: identifies the node as an interrupt controller
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- msi-controller: identifies the node as an PCI Message Signaled Interrupt
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controller
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- al,msi-base-spi: SPI base of the MSI frame
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- al,msi-num-spis: number of SPIs assigned to the MSI frame, relative to SPI0
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Example:
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msix: msix {
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compatible = "al,alpine-msix";
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reg = <0x0 0xfbe00000 0x0 0x100000>;
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interrupt-parent = <&gic>;
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interrupt-controller;
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msi-controller;
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al,msi-base-spi = <160>;
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al,msi-num-spis = <160>;
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};
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