renesas,mmcif.txt 1.0 KB

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  1. * Renesas Multi Media Card Interface (MMCIF) Controller
  2. This file documents differences between the core properties in mmc.txt
  3. and the properties used by the MMCIF device.
  4. Required properties:
  5. - compatible: must contain one of the following
  6. - "renesas,mmcif-r8a7740" for the MMCIF found in r8a7740 SoCs
  7. - "renesas,mmcif-r8a7790" for the MMCIF found in r8a7790 SoCs
  8. - "renesas,mmcif-r8a7791" for the MMCIF found in r8a7791 SoCs
  9. - "renesas,sh-mmcif" for the generic MMCIF
  10. - clocks: reference to the functional clock
  11. - dmas: reference to the DMA channels, one per channel name listed in the
  12. dma-names property.
  13. - dma-names: must contain "tx" for the transmit DMA channel and "rx" for the
  14. receive DMA channel.
  15. Example: R8A7790 (R-Car H2) MMCIF0
  16. mmcif0: mmc@ee200000 {
  17. compatible = "renesas,mmcif-r8a7790", "renesas,sh-mmcif";
  18. reg = <0 0xee200000 0 0x80>;
  19. interrupts = <0 169 IRQ_TYPE_LEVEL_HIGH>;
  20. clocks = <&mstp3_clks R8A7790_CLK_MMCIF0>;
  21. dmas = <&dmac0 0xd1>, <&dmac0 0xd2>;
  22. dma-names = "tx", "rx";
  23. };