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elpida_ecb240abacn.dtsi

elpida_ecb240abacn.dtsi 1.5 KB
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  1. // SPDX-License-Identifier: GPL-2.0
    2. 

  2. /*
    3. 

  3.  * Common devices used in different OMAP boards
    4. 

  4.  */
    5. 

  5. 

  6. / {
    7. 

  7. 	elpida_ECB240ABACN: lpddr2 {
    8. 

  8. 		compatible	= "elpida,ECB240ABACN","jedec,lpddr2-s4";
    9. 

  9. 		density		= <2048>;
    10. 

  10. 		io-width	= <32>;
    11. 

  11. 

  12. 		tRPab-min-tck	= <3>;
    13. 

  13. 		tRCD-min-tck	= <3>;
    14. 

  14. 		tWR-min-tck	= <3>;
    15. 

  15. 		tRASmin-min-tck	= <3>;
    16. 

  16. 		tRRD-min-tck	= <2>;
    17. 

  17. 		tWTR-min-tck	= <2>;
    18. 

  18. 		tXP-min-tck	= <2>;
    19. 

  19. 		tRTP-min-tck	= <2>;
    20. 

  20. 		tCKE-min-tck	= <3>;
    21. 

  21. 		tCKESR-min-tck	= <3>;
    22. 

  22. 		tFAW-min-tck	= <8>;
    23. 

  23. 

  24. 		timings_elpida_ECB240ABACN_400mhz: lpddr2-timings@0 {
    25. 

  25. 			compatible	= "jedec,lpddr2-timings";
    26. 

  26. 			min-freq	= <10000000>;
    27. 

  27. 			max-freq	= <400000000>;
    28. 

  28. 			tRPab		= <21000>;
    29. 

  29. 			tRCD		= <18000>;
    30. 

  30. 			tWR		= <15000>;
    31. 

  31. 			tRAS-min	= <42000>;
    32. 

  32. 			tRRD		= <10000>;
    33. 

  33. 			tWTR		= <7500>;
    34. 

  34. 			tXP		= <7500>;
    35. 

  35. 			tRTP		= <7500>;
    36. 

  36. 			tCKESR		= <15000>;
    37. 

  37. 			tDQSCK-max	= <5500>;
    38. 

  38. 			tFAW		= <50000>;
    39. 

  39. 			tZQCS		= <90000>;
    40. 

  40. 			tZQCL		= <360000>;
    41. 

  41. 			tZQinit		= <1000000>;
    42. 

  42. 			tRAS-max-ns	= <70000>;
    43. 

  43. 			tDQSCK-max-derated = <6000>;
    44. 

  44. 		};
    45. 

  45. 

  46. 		timings_elpida_ECB240ABACN_200mhz: lpddr2-timings@1 {
    47. 

  47. 			compatible	= "jedec,lpddr2-timings";
    48. 

  48. 			min-freq	= <10000000>;
    49. 

  49. 			max-freq	= <200000000>;
    50. 

  50. 			tRPab		= <21000>;
    51. 

  51. 			tRCD		= <18000>;
    52. 

  52. 			tWR		= <15000>;
    53. 

  53. 			tRAS-min	= <42000>;
    54. 

  54. 			tRRD		= <10000>;
    55. 

  55. 			tWTR		= <10000>;
    56. 

  56. 			tXP		= <7500>;
    57. 

  57. 			tRTP		= <7500>;
    58. 

  58. 			tCKESR		= <15000>;
    59. 

  59. 			tDQSCK-max	= <5500>;
    60. 

  60. 			tFAW		= <50000>;
    61. 

  61. 			tZQCS		= <90000>;
    62. 

  62. 			tZQCL		= <360000>;
    63. 

  63. 			tZQinit		= <1000000>;
    64. 

  64. 			tRAS-max-ns	= <70000>;
    65. 

  65. 			tDQSCK-max-derated = <6000>;
    66. 

  66. 		};
    67. 

  67. 	};
    68. 

  68. };
    69.