README.at91 4.5 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124
  1. Atmel AT91 Evaluation kits
  2. http://atmel.com/dyn/products/tools.asp?family_id=605#1443
  3. I. Board mapping & boot media
  4. ------------------------------------------------------------------------------
  5. AT91SAM9260EK, AT91SAM9G20EK & AT91SAM9XEEK
  6. ------------------------------------------------------------------------------
  7. Memory map
  8. 0x20000000 - 23FFFFFF SDRAM (64 MB)
  9. 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J13)
  10. 0xD0000000 - Dxxxxxxx Soldered Atmel Dataflash
  11. Environment variables
  12. U-Boot environment variables can be stored at different places:
  13. - Dataflash on SPI chip select 1 (default)
  14. - Dataflash on SPI chip select 0 (dataflash card)
  15. - Nand flash.
  16. You can choose your storage location at config step (here for at91sam9260ek) :
  17. make at91sam9260ek_config - use data flash (spi cs1) (default)
  18. make at91sam9260ek_nandflash_config - use nand flash
  19. make at91sam9260ek_dataflash_cs0_config - use data flash (spi cs0)
  20. make at91sam9260ek_dataflash_cs1_config - use data flash (spi cs1)
  21. ------------------------------------------------------------------------------
  22. AT91SAM9261EK, AT91SAM9G10EK
  23. ------------------------------------------------------------------------------
  24. Memory map
  25. 0x20000000 - 23FFFFFF SDRAM (64 MB)
  26. 0xC0000000 - Cxxxxxxx Soldered Atmel Dataflash
  27. 0xD0000000 - Dxxxxxxx Atmel Dataflash card (J22)
  28. Environment variables
  29. U-Boot environment variables can be stored at different places:
  30. - Dataflash on SPI chip select 0 (default)
  31. - Dataflash on SPI chip select 3 (dataflash card)
  32. - Nand flash.
  33. You can choose your storage location at config step (here for at91sam9260ek) :
  34. make at91sam9261ek_config - use data flash (spi cs0) (default)
  35. make at91sam9261ek_nandflash_config - use nand flash
  36. make at91sam9261ek_dataflash_cs0_config - use data flash (spi cs0)
  37. make at91sam9261ek_dataflash_cs3_config - use data flash (spi cs3)
  38. ------------------------------------------------------------------------------
  39. AT91SAM9263EK
  40. ------------------------------------------------------------------------------
  41. Memory map
  42. 0x20000000 - 23FFFFFF SDRAM (64 MB)
  43. 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J9)
  44. Environment variables
  45. U-Boot environment variables can be stored at different places:
  46. - Dataflash on SPI chip select 0 (dataflash card)
  47. - Nand flash.
  48. - Nor flash (not populate by default)
  49. You can choose your storage location at config step (here for at91sam9260ek) :
  50. make at91sam9263ek_config - use data flash (spi cs0) (default)
  51. make at91sam9263ek_nandflash_config - use nand flash
  52. make at91sam9263ek_dataflash_cs0_config - use data flash (spi cs0)
  53. make at91sam9263ek_norflash_config - use nor flash
  54. You can choose to boot directly from U-Boot at config step
  55. make at91sam9263ek_norflash_boot_config - boot from nor flash
  56. ------------------------------------------------------------------------------
  57. AT91SAM9M10G45EK
  58. ------------------------------------------------------------------------------
  59. Memory map
  60. 0x20000000 - 23FFFFFF SDRAM (64 MB)
  61. 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J12)
  62. Environment variables
  63. U-Boot environment variables can be stored at different places:
  64. - Dataflash on SPI chip select 0 (dataflash card)
  65. - Nand flash.
  66. You can choose your storage location at config step (here for at91sam9m10g45ek) :
  67. make at91sam9m10g45ek_config - use data flash (spi cs0) (default)
  68. make at91sam9m10g45ek_nandflash_config - use nand flash
  69. make at91sam9m10g45ek_dataflash_cs0_config - use data flash (spi cs0)
  70. ------------------------------------------------------------------------------
  71. AT91SAM9RLEK
  72. ------------------------------------------------------------------------------
  73. Memory map
  74. 0x20000000 - 23FFFFFF SDRAM (64 MB)
  75. 0xC0000000 - Cxxxxxxx Soldered Atmel Dataflash
  76. Environment variables
  77. U-Boot environment variables can be stored at different places:
  78. - Dataflash on SPI chip select 0
  79. - Nand flash.
  80. You can choose your storage location at config step (here for at91sam9260ek) :
  81. make at91sam9263ek_config - use data flash (spi cs0) (default)
  82. make at91sam9263ek_nandflash_config - use nand flash
  83. make at91sam9263ek_dataflash_cs0_config - use data flash (spi cs0)
  84. II. Watchdog support
  85. For security reasons, the at91 watchdog is running at boot time and,
  86. if deactivated, cannot be used anymore.
  87. If you want to use the watchdog, you will need to keep it running in
  88. your code (make sure not to disable it in AT91Bootstrap for instance).
  89. In the U-Boot configuration, the AT91 watchdog support is enabled using
  90. the CONFIG_AT91SAM9_WATCHDOG and CONFIG_HW_WATCHDOG options.