This repository describes the attempt at resuscitation of a ReadyNAS NV+v2.
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  1. #
  2. # (C) Copyright 2009
  3. # Marvell Semiconductor <www.marvell.com>
  4. # Written-by: Prafulla Wadaskar <prafulla@marvell.com>
  5. #
  6. # See file CREDITS for list of people who contributed to this
  7. # project.
  8. #
  9. # This program is free software; you can redistribute it and/or
  10. # modify it under the terms of the GNU General Public License as
  11. # published by the Free Software Foundation; either version 2 of
  12. # the License, or (at your option) any later version.
  13. #
  14. # This program is distributed in the hope that it will be useful,
  15. # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17. # GNU General Public License for more details.
  18. #
  19. # You should have received a copy of the GNU General Public License
  20. # along with this program; if not, write to the Free Software
  21. # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  22. # MA 02110-1301 USA
  23. #
  24. # Refer docs/README.kwimage for more details about how-to configure
  25. # and create kirkwood boot image
  26. #
  27. # Boot Media configurations
  28. BOOT_FROM spi # Boot from SPI flash
  29. # SOC registers configuration using bootrom header extension
  30. # Maximum KWBIMAGE_MAX_CONFIG configurations allowed
  31. # Configure RGMII-0 interface pad voltage to 1.8V
  32. DATA 0xFFD100e0 0x1b1b1b9b
  33. #Dram initalization for SINGLE x16 CL=5 @ 400MHz
  34. DATA 0xFFD01400 0x43000a00 # DDR Configuration register
  35. # bit13-0: 0xa00 (2560 DDR2 clks refresh rate)
  36. # bit23-14: zero
  37. # bit24: 1= enable exit self refresh mode on DDR access
  38. # bit25: 1 required
  39. # bit29-26: zero
  40. # bit31-30: 01
  41. DATA 0xFFD01404 0x38543000 # DDR Controller Control Low
  42. # bit 4: 0=addr/cmd in smame cycle
  43. # bit 5: 0=clk is driven during self refresh, we don't care for APX
  44. # bit 6: 0=use recommended falling edge of clk for addr/cmd
  45. # bit14: 0=input buffer always powered up
  46. # bit18: 1=cpu lock transaction enabled
  47. # bit23-20: 5=recommended value for CL=5 and STARTBURST_DEL disabled bit31=0
  48. # bit27-24: 8= CL+3, STARTBURST sample stages, for freqs 400MHz, unbuffered DIMM
  49. # bit30-28: 3 required
  50. # bit31: 0=no additional STARTBURST delay
  51. DATA 0xFFD01408 0x2202433D # DDR Timing (Low) (active cycles value +1)
  52. # bit3-0: TRAS lsbs
  53. # bit7-4: TRCD
  54. # bit11- 8: TRP
  55. # bit15-12: TWR
  56. # bit19-16: TWTR
  57. # bit20: TRAS msb
  58. # bit23-21: 0x0
  59. # bit27-24: TRRD
  60. # bit31-28: TRTP
  61. DATA 0xFFD0140C 0x0000002A # DDR Timing (High)
  62. # bit6-0: TRFC
  63. # bit8-7: TR2R
  64. # bit10-9: TR2W
  65. # bit12-11: TW2W
  66. # bit31-13: zero required
  67. DATA 0xFFD01410 0x0000000D # DDR Address Control
  68. # bit1-0: 01, Cs0width=x16
  69. # bit3-2: 11, Cs0size=1Gb
  70. # bit5-4: 00, Cs2width=nonexistent
  71. # bit7-6: 00, Cs1size =nonexistent
  72. # bit9-8: 00, Cs2width=nonexistent
  73. # bit11-10: 00, Cs2size =nonexistent
  74. # bit13-12: 00, Cs3width=nonexistent
  75. # bit15-14: 00, Cs3size =nonexistent
  76. # bit16: 0, Cs0AddrSel
  77. # bit17: 0, Cs1AddrSel
  78. # bit18: 0, Cs2AddrSel
  79. # bit19: 0, Cs3AddrSel
  80. # bit31-20: 0 required
  81. DATA 0xFFD01414 0x00000000 # DDR Open Pages Control
  82. # bit0: 0, OpenPage enabled
  83. # bit31-1: 0 required
  84. DATA 0xFFD01418 0x00000000 # DDR Operation
  85. # bit3-0: 0x0, DDR cmd
  86. # bit31-4: 0 required
  87. DATA 0xFFD0141C 0x00000C52 # DDR Mode
  88. # bit2-0: 2, BurstLen=2 required
  89. # bit3: 0, BurstType=0 required
  90. # bit6-4: 4, CL=5
  91. # bit7: 0, TestMode=0 normal
  92. # bit8: 0, DLL reset=0 normal
  93. # bit11-9: 6, auto-precharge write recovery ????????????
  94. # bit12: 0, PD must be zero
  95. # bit31-13: 0 required
  96. DATA 0xFFD01420 0x00000046 # DDR Extended Mode
  97. # bit0: 0, DDR DLL enabled
  98. # bit1: 1, DDR drive strenght reduced
  99. # bit2: 1, DDR ODT control lsd enabled
  100. # bit5-3: 000, required
  101. # bit6: 1, DDR ODT control msb, enabled
  102. # bit9-7: 000, required
  103. # bit10: 0, differential DQS enabled
  104. # bit11: 0, required
  105. # bit12: 0, DDR output buffer enabled
  106. # bit31-13: 0 required
  107. DATA 0xFFD01424 0x0000F1FF # DDR Controller Control High
  108. # bit2-0: 111, required
  109. # bit3 : 1 , MBUS Burst Chop disabled
  110. # bit6-4: 111, required
  111. # bit7 : 1 , D2P Latency enabled
  112. # bit8 : 1 , add writepath sample stage, must be 1 for DDR freq >= 300MHz
  113. # bit9 : 0 , no half clock cycle addition to dataout
  114. # bit10 : 0 , 1/4 clock cycle skew enabled for addr/ctl signals
  115. # bit11 : 0 , 1/4 clock cycle skew disabled for write mesh
  116. # bit15-12: 1111 required
  117. # bit31-16: 0 required
  118. DATA 0xFFD01428 0x00085520 # DDR2 ODT Read Timing (default values)
  119. DATA 0xFFD0147C 0x00008552 # DDR2 ODT Write Timing (default values)
  120. DATA 0xFFD01500 0x00000000 # CS[0]n Base address to 0x0
  121. DATA 0xFFD01504 0x07FFFFF1 # CS[0]n Size
  122. # bit0: 1, Window enabled
  123. # bit1: 0, Write Protect disabled
  124. # bit3-2: 00, CS0 hit selected
  125. # bit23-4: ones, required
  126. # bit31-24: 0x07, Size (i.e. 128MB)
  127. DATA 0xFFD0150C 0x00000000 # CS[1]n Size, window disabled
  128. DATA 0xFFD01514 0x00000000 # CS[2]n Size, window disabled
  129. DATA 0xFFD0151C 0x00000000 # CS[3]n Size, window disabled
  130. DATA 0xFFD01494 0x00010001 # DDR ODT Control (Low)
  131. # bit3-0: 1, ODT0Rd, MODT[0] asserted during read from DRAM CS0
  132. # bit19-16:1, ODT0Wr, MODT[0] asserted during write to DRAM CS0
  133. DATA 0xFFD01498 0x00000000 # DDR ODT Control (High)
  134. # bit1-0: 00, ODT0 controlled by ODT Control (low) register above
  135. # bit3-2: 01, ODT1 active NEVER!
  136. # bit31-4: zero, required
  137. DATA 0xFFD0149C 0x0000E811 # CPU ODT Control
  138. # bit3-0: 1, ODT0Rd, Internal ODT asserted during read from DRAM bank0
  139. # bit7-4: 1, ODT0Wr, Internal ODT asserted during write to DRAM bank0
  140. # bit11-10:1, DQ_ODTSel. ODT select turned on
  141. DATA 0xFFD01480 0x00000001 # DDR Initialization Control
  142. #bit0=1, enable DDR init upon this register write
  143. # End of Header extension
  144. DATA 0x0 0x0