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46 lines
1.3 KiB
46 lines
1.3 KiB
Turris Mox module status and configuration bus (over SPI) |
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Required properties: |
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- compatible : Should be "cznic,moxtet" |
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- #address-cells : Has to be 1 |
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- #size-cells : Has to be 0 |
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- spi-cpol : Required inverted clock polarity |
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- spi-cpha : Required shifted clock phase |
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- interrupts : Must contain reference to the shared interrupt line |
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- interrupt-controller : Required |
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- #interrupt-cells : Has to be 1 |
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For other required and optional properties of SPI slave nodes please refer to |
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../spi/spi-bus.txt. |
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Required properties of subnodes: |
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- reg : Should be position on the Moxtet bus (how many Moxtet |
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modules are between this module and CPU module, so |
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either 0 or a positive integer) |
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The driver finds the devices connected to the bus by itself, but it may be |
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needed to reference some of them from other parts of the device tree. In that |
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case the devices can be defined as subnodes of the moxtet node. |
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Example: |
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moxtet@1 { |
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compatible = "cznic,moxtet"; |
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#address-cells = <1>; |
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#size-cells = <0>; |
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reg = <1>; |
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spi-max-frequency = <10000000>; |
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spi-cpol; |
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spi-cpha; |
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interrupt-controller; |
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#interrupt-cells = <1>; |
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interrupt-parent = <&gpiosb>; |
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interrupts = <5 IRQ_TYPE_EDGE_FALLING>; |
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moxtet_sfp: gpio@0 { |
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compatible = "cznic,moxtet-gpio"; |
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gpio-controller; |
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#gpio-cells = <2>; |
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reg = <0>; |
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} |
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};
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