1Atmel AT91 Evaluation kits 2 3http://atmel.com/dyn/products/tools.asp?family_id=605#1443 4 5I. Board mapping & boot media 6------------------------------------------------------------------------------ 7AT91SAM9260EK, AT91SAM9G20EK & AT91SAM9XEEK 8------------------------------------------------------------------------------ 9 10Memory map 11 0x20000000 - 23FFFFFF SDRAM (64 MB) 12 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J13) 13 0xD0000000 - Dxxxxxxx Soldered Atmel Dataflash 14 15Environment variables 16 17 U-Boot environment variables can be stored at different places: 18 - Dataflash on SPI chip select 1 (default) 19 - Dataflash on SPI chip select 0 (dataflash card) 20 - Nand flash. 21 22 You can choose your storage location at config step (here for at91sam9260ek) : 23 make at91sam9260ek_config - use data flash (spi cs1) (default) 24 make at91sam9260ek_nandflash_config - use nand flash 25 make at91sam9260ek_dataflash_cs0_config - use data flash (spi cs0) 26 make at91sam9260ek_dataflash_cs1_config - use data flash (spi cs1) 27 28 29------------------------------------------------------------------------------ 30AT91SAM9261EK 31------------------------------------------------------------------------------ 32 33Memory map 34 0x20000000 - 23FFFFFF SDRAM (64 MB) 35 0xC0000000 - Cxxxxxxx Soldered Atmel Dataflash 36 0xD0000000 - Dxxxxxxx Atmel Dataflash card (J22) 37 38Environment variables 39 40 U-Boot environment variables can be stored at different places: 41 - Dataflash on SPI chip select 0 (default) 42 - Dataflash on SPI chip select 3 (dataflash card) 43 - Nand flash. 44 45 You can choose your storage location at config step (here for at91sam9260ek) : 46 make at91sam9261ek_config - use data flash (spi cs0) (default) 47 make at91sam9261ek_nandflash_config - use nand flash 48 make at91sam9261ek_dataflash_cs0_config - use data flash (spi cs0) 49 make at91sam9261ek_dataflash_cs3_config - use data flash (spi cs3) 50 51 52------------------------------------------------------------------------------ 53AT91SAM9263EK 54------------------------------------------------------------------------------ 55 56Memory map 57 0x20000000 - 23FFFFFF SDRAM (64 MB) 58 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J9) 59 60Environment variables 61 62 U-Boot environment variables can be stored at different places: 63 - Dataflash on SPI chip select 0 (dataflash card) 64 - Nand flash. 65 - Nor falsh (not populate by default) 66 67 You can choose your storage location at config step (here for at91sam9260ek) : 68 make at91sam9263ek_config - use data flash (spi cs0) (default) 69 make at91sam9263ek_nandflash_config - use nand flash 70 make at91sam9263ek_dataflash_cs0_config - use data flash (spi cs0) 71 make at91sam9263ek_norflash_config - use nor falsh 72 73 You can choose to boot directly from U-Boot at config step 74 make at91sam9263ek_norflash_boot_config - boot from nor falsh 75 76 77------------------------------------------------------------------------------ 78AT91SAM9RLEK 79------------------------------------------------------------------------------ 80 81Memory map 82 0x20000000 - 23FFFFFF SDRAM (64 MB) 83 0xC0000000 - Cxxxxxxx Soldered Atmel Dataflash 84 85Environment variables 86 87 U-Boot environment variables can be stored at different places: 88 - Dataflash on SPI chip select 0 89 - Nand flash. 90 91 You can choose your storage location at config step (here for at91sam9260ek) : 92 make at91sam9263ek_config - use data flash (spi cs0) (default) 93 make at91sam9263ek_nandflash_config - use nand flash 94 make at91sam9263ek_dataflash_cs0_config - use data flash (spi cs0) 95 96II. Watchdog support 97 98 For security reasons, the at91 watchdog is running at boot time and, 99 if deactivated, cannot be used anymore. 100 If you want to use the watchdog, you will need to keep it running in 101 your code (make sure not to disable it in AT91Bootstrap for instance). 102 103 In the U-Boot configuration, the AT91 watchdog support is enabled using 104 the CONFIG_AT91SAM9_WATCHDOG and CONFIG_HW_WATCHDOG options. 105