| Atmel AT91 Evaluation kits |
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| http://atmel.com/dyn/products/tools.asp?family_id=605#1443 |
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| I. Board mapping & boot media |
| ------------------------------------------------------------------------------ |
| AT91SAM9260EK, AT91SAM9G20EK & AT91SAM9XEEK |
| ------------------------------------------------------------------------------ |
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| Memory map |
| 0x20000000 - 23FFFFFF SDRAM (64 MB) |
| 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J13) |
| 0xD0000000 - Dxxxxxxx Soldered Atmel Dataflash |
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| Environment variables |
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| U-Boot environment variables can be stored at different places: |
| - Dataflash on SPI chip select 1 (default) |
| - Dataflash on SPI chip select 0 (dataflash card) |
| - Nand flash. |
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| You can choose your storage location at config step (here for at91sam9260ek) : |
| make at91sam9260ek_config - use data flash (spi cs1) (default) |
| make at91sam9260ek_nandflash_config - use nand flash |
| make at91sam9260ek_dataflash_cs0_config - use data flash (spi cs0) |
| make at91sam9260ek_dataflash_cs1_config - use data flash (spi cs1) |
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| ------------------------------------------------------------------------------ |
| AT91SAM9261EK |
| ------------------------------------------------------------------------------ |
| |
| Memory map |
| 0x20000000 - 23FFFFFF SDRAM (64 MB) |
| 0xC0000000 - Cxxxxxxx Soldered Atmel Dataflash |
| 0xD0000000 - Dxxxxxxx Atmel Dataflash card (J22) |
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| Environment variables |
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| U-Boot environment variables can be stored at different places: |
| - Dataflash on SPI chip select 0 (default) |
| - Dataflash on SPI chip select 3 (dataflash card) |
| - Nand flash. |
| |
| You can choose your storage location at config step (here for at91sam9260ek) : |
| make at91sam9261ek_config - use data flash (spi cs0) (default) |
| make at91sam9261ek_nandflash_config - use nand flash |
| make at91sam9261ek_dataflash_cs0_config - use data flash (spi cs0) |
| make at91sam9261ek_dataflash_cs3_config - use data flash (spi cs3) |
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| ------------------------------------------------------------------------------ |
| AT91SAM9263EK |
| ------------------------------------------------------------------------------ |
| |
| Memory map |
| 0x20000000 - 23FFFFFF SDRAM (64 MB) |
| 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J9) |
| |
| Environment variables |
| |
| U-Boot environment variables can be stored at different places: |
| - Dataflash on SPI chip select 0 (dataflash card) |
| - Nand flash. |
| |
| You can choose your storage location at config step (here for at91sam9260ek) : |
| make at91sam9263ek_config - use data flash (spi cs0) (default) |
| make at91sam9263ek_nandflash_config - use nand flash |
| make at91sam9263ek_dataflash_cs0_config - use data flash (spi cs0) |
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| ------------------------------------------------------------------------------ |
| AT91SAM9RLEK |
| ------------------------------------------------------------------------------ |
| |
| Memory map |
| 0x20000000 - 23FFFFFF SDRAM (64 MB) |
| 0xC0000000 - Cxxxxxxx Soldered Atmel Dataflash |
| |
| Environment variables |
| |
| U-Boot environment variables can be stored at different places: |
| - Dataflash on SPI chip select 0 |
| - Nand flash. |
| |
| You can choose your storage location at config step (here for at91sam9260ek) : |
| make at91sam9263ek_config - use data flash (spi cs0) (default) |
| make at91sam9263ek_nandflash_config - use nand flash |
| make at91sam9263ek_dataflash_cs0_config - use data flash (spi cs0) |
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| II. Watchdog support |
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| For security reasons, the at91 watchdog is running at boot time and, |
| if deactivated, cannot be used anymore. |
| If you want to use the watchdog, you will need to keep it running in |
| your code (make sure not to disable it in AT91Bootstrap for instance). |
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| In the U-Boot configuration, the AT91 watchdog support is enabled using |
| the CONFIG_AT91SAM9_WATCHDOG and CONFIG_HW_WATCHDOG options. |