idt_89hpesx.txt 1.6 KB

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  1. EEPROM / CSR SMBus-slave interface of IDT 89HPESx devices
  2. Required properties:
  3. - compatible : should be "<manufacturer>,<type>"
  4. Basically there is only one manufacturer: idt, but some
  5. compatible devices may be produced in future. Following devices
  6. are supported: 89hpes8nt2, 89hpes12nt3, 89hpes24nt6ag2,
  7. 89hpes32nt8ag2, 89hpes32nt8bg2, 89hpes12nt12g2, 89hpes16nt16g2,
  8. 89hpes24nt24g2, 89hpes32nt24ag2, 89hpes32nt24bg2;
  9. 89hpes12n3, 89hpes12n3a, 89hpes24n3, 89hpes24n3a;
  10. 89hpes32h8, 89hpes32h8g2, 89hpes48h12, 89hpes48h12g2,
  11. 89hpes48h12ag2, 89hpes16h16, 89hpes22h16, 89hpes22h16g2,
  12. 89hpes34h16, 89hpes34h16g2, 89hpes64h16, 89hpes64h16g2,
  13. 89hpes64h16ag2;
  14. 89hpes12t3g2, 89hpes24t3g2, 89hpes16t4, 89hpes4t4g2,
  15. 89hpes10t4g2, 89hpes16t4g2, 89hpes16t4ag2, 89hpes5t5,
  16. 89hpes6t5, 89hpes8t5, 89hpes8t5a, 89hpes24t6, 89hpes6t6g2,
  17. 89hpes24t6g2, 89hpes16t7, 89hpes32t8, 89hpes32t8g2,
  18. 89hpes48t12, 89hpes48t12g2.
  19. - reg : I2C address of the IDT 89HPESx device.
  20. Optionally there can be EEPROM-compatible subnode:
  21. - compatible: There are five EEPROM devices supported: 24c32, 24c64, 24c128,
  22. 24c256 and 24c512 differed by size.
  23. - reg: Custom address of EEPROM device (If not specified IDT 89HPESx
  24. (optional) device will try to communicate with EEPROM sited by default
  25. address - 0x50)
  26. - read-only : Parameterless property disables writes to the EEPROM
  27. (optional)
  28. Example:
  29. idt@60 {
  30. compatible = "idt,89hpes32nt8ag2";
  31. reg = <0x74>;
  32. #address-cells = <1>;
  33. #size-cells = <0>;
  34. eeprom@50 {
  35. compatible = "onsemi,24c64";
  36. reg = <0x50>;
  37. read-only;
  38. };
  39. };