| Renesas MSIOF spi controller |
| |
| Required properties: |
| - compatible : "renesas,msiof-<soctype>" for SoCs, |
| "renesas,sh-msiof" for SuperH, or |
| "renesas,sh-mobile-msiof" for SH Mobile series. |
| Examples with soctypes are: |
| "renesas,msiof-r8a7790" (R-Car H2) |
| "renesas,msiof-r8a7791" (R-Car M2-W) |
| "renesas,msiof-r8a7792" (R-Car V2H) |
| "renesas,msiof-r8a7793" (R-Car M2-N) |
| "renesas,msiof-r8a7794" (R-Car E2) |
| - reg : A list of offsets and lengths of the register sets for |
| the device. |
| If only one register set is present, it is to be used |
| by both the CPU and the DMA engine. |
| If two register sets are present, the first is to be |
| used by the CPU, and the second is to be used by the |
| DMA engine. |
| - interrupt-parent : The phandle for the interrupt controller that |
| services interrupts for this device |
| - interrupts : Interrupt specifier |
| - #address-cells : Must be <1> |
| - #size-cells : Must be <0> |
| |
| Optional properties: |
| - clocks : Must contain a reference to the functional clock. |
| - num-cs : Total number of chip-selects (default is 1) |
| - dmas : Must contain a list of two references to DMA |
| specifiers, one for transmission, and one for |
| reception. |
| - dma-names : Must contain a list of two DMA names, "tx" and "rx". |
| |
| Optional properties, deprecated for soctype-specific bindings: |
| - renesas,tx-fifo-size : Overrides the default tx fifo size given in words |
| (default is 64) |
| - renesas,rx-fifo-size : Overrides the default rx fifo size given in words |
| (default is 64, or 256 on R-Car Gen2) |
| |
| Pinctrl properties might be needed, too. See |
| Documentation/devicetree/bindings/pinctrl/renesas,*. |
| |
| Example: |
| |
| msiof0: spi@e6e20000 { |
| compatible = "renesas,msiof-r8a7791"; |
| reg = <0 0xe6e20000 0 0x0064>, <0 0xe7e20000 0 0x0064>; |
| interrupts = <0 156 IRQ_TYPE_LEVEL_HIGH>; |
| clocks = <&mstp0_clks R8A7791_CLK_MSIOF0>; |
| dmas = <&dmac0 0x51>, <&dmac0 0x52>; |
| dma-names = "tx", "rx"; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| status = "disabled"; |
| }; |
