hi3798cv200-dw-mshc.txt 1.5 KB

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  1. * Hisilicon Hi3798CV200 specific extensions to the Synopsys Designware Mobile
  2. Storage Host Controller
  3. Read synopsys-dw-mshc.txt for more details
  4. The Synopsys designware mobile storage host controller is used to interface
  5. a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
  6. differences between the core Synopsys dw mshc controller properties described
  7. by synopsys-dw-mshc.txt and the properties used by the Hisilicon Hi3798CV200
  8. specific extensions to the Synopsys Designware Mobile Storage Host Controller.
  9. Required Properties:
  10. - compatible: Should contain "hisilicon,hi3798cv200-dw-mshc".
  11. - clocks: A list of phandle + clock-specifier pairs for the clocks listed
  12. in clock-names.
  13. - clock-names: Should contain the following:
  14. "ciu" - The ciu clock described in synopsys-dw-mshc.txt.
  15. "biu" - The biu clock described in synopsys-dw-mshc.txt.
  16. "ciu-sample" - Hi3798CV200 extended phase clock for ciu sampling.
  17. "ciu-drive" - Hi3798CV200 extended phase clock for ciu driving.
  18. Example:
  19. emmc: mmc@9830000 {
  20. compatible = "hisilicon,hi3798cv200-dw-mshc";
  21. reg = <0x9830000 0x10000>;
  22. interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
  23. clocks = <&crg HISTB_MMC_CIU_CLK>,
  24. <&crg HISTB_MMC_BIU_CLK>,
  25. <&crg HISTB_MMC_SAMPLE_CLK>,
  26. <&crg HISTB_MMC_DRV_CLK>;
  27. clock-names = "ciu", "biu", "ciu-sample", "ciu-drive";
  28. fifo-depth = <256>;
  29. clock-frequency = <200000000>;
  30. cap-mmc-highspeed;
  31. mmc-ddr-1_8v;
  32. mmc-hs200-1_8v;
  33. non-removable;
  34. bus-width = <8>;
  35. };