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Diffstat (limited to 'Documentation/devicetree/bindings/spi/nvidia,tegra114-spi.txt')
-rw-r--r-- | Documentation/devicetree/bindings/spi/nvidia,tegra114-spi.txt | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra114-spi.txt b/Documentation/devicetree/bindings/spi/nvidia,tegra114-spi.txt deleted file mode 100644 index db8e0d71c5bc..000000000000 --- a/Documentation/devicetree/bindings/spi/nvidia,tegra114-spi.txt +++ /dev/null @@ -1,61 +0,0 @@ -NVIDIA Tegra114 SPI controller. - -Required properties: -- compatible : For Tegra114, must contain "nvidia,tegra114-spi". - Otherwise, must contain '"nvidia,<chip>-spi", "nvidia,tegra114-spi"' where - <chip> is tegra124, tegra132, or tegra210. -- reg: Should contain SPI registers location and length. -- interrupts: Should contain SPI interrupts. -- clock-names : Must include the following entries: - - spi -- resets : Must contain an entry for each entry in reset-names. - See ../reset/reset.txt for details. -- reset-names : Must include the following entries: - - spi -- dmas : Must contain an entry for each entry in clock-names. - See ../dma/dma.txt for details. -- dma-names : Must include the following entries: - - rx - - tx -- clocks : Must contain an entry for each entry in clock-names. - See ../clocks/clock-bindings.txt for details. - -Recommended properties: -- spi-max-frequency: Definition as per - Documentation/devicetree/bindings/spi/spi-bus.txt -Optional properties: -- nvidia,tx-clk-tap-delay: Delays the clock going out to the external device - with this tap value. This property is used to tune the outgoing data from - Tegra SPI master with respect to outgoing Tegra SPI master clock. - Tap values vary based on the platform design trace lengths from Tegra SPI - to corresponding slave devices. Valid tap values are from 0 thru 63. -- nvidia,rx-clk-tap-delay: Delays the clock coming in from the external device - with this tap value. This property is used to adjust the Tegra SPI master - clock with respect to the data from the SPI slave device. - Tap values vary based on the platform design trace lengths from Tegra SPI - to corresponding slave devices. Valid tap values are from 0 thru 63. - -Example: - -spi@7000d600 { - compatible = "nvidia,tegra114-spi"; - reg = <0x7000d600 0x200>; - interrupts = <0 82 0x04>; - spi-max-frequency = <25000000>; - #address-cells = <1>; - #size-cells = <0>; - clocks = <&tegra_car 44>; - clock-names = "spi"; - resets = <&tegra_car 44>; - reset-names = "spi"; - dmas = <&apbdma 16>, <&apbdma 16>; - dma-names = "rx", "tx"; - <spi-client>@<bus_num> { - ... - ... - nvidia,rx-clk-tap-delay = <0>; - nvidia,tx-clk-tap-delay = <16>; - ... - }; - -}; |