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@ -10,3 +10,28 @@ config DM_SPI |
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as 'parent data' to every slave on each bus. Slaves |
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typically use driver-private data instead of extending the |
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spi_slave structure. |
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config SANDBOX_SPI |
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bool "Sandbox SPI driver" |
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depends on SANDBOX && DM |
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help |
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Enable SPI support for sandbox. This is an emulation of a real SPI |
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bus. Devices can be attached to the bus using the device tree |
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which specifies the driver to use. As an example, see this device |
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tree fragment from sandbox.dts. It shows that the SPI bus has a |
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single flash device on chip select 0 which is emulated by the driver |
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for "sandbox,spi-flash", which is in drivers/mtd/spi/sandbox.c. |
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spi@0 { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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reg = <0>; |
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compatible = "sandbox,spi"; |
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cs-gpios = <0>, <&gpio_a 0>; |
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flash@0 { |
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reg = <0>; |
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compatible = "spansion,m25p16", "sandbox,spi-flash"; |
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spi-max-frequency = <40000000>; |
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sandbox,filename = "spi.bin"; |
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}; |
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}; |
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