http://atmel.com/dyn/products/tools.asp?family_id=605#1443
+I. Board mapping & boot media
------------------------------------------------------------------------------
-AT91SAM9260EK & AT91SAM9XEEK
+AT91SAM9260EK, AT91SAM9G20EK & AT91SAM9XEEK
------------------------------------------------------------------------------
Memory map
------------------------------------------------------------------------------
-AT91SAM9261EK
+AT91SAM9261EK, AT91SAM9G10EK
------------------------------------------------------------------------------
Memory map
U-Boot environment variables can be stored at different places:
- Dataflash on SPI chip select 0 (dataflash card)
- Nand flash.
+ - Nor flash (not populate by default)
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)
+ make at91sam9263ek_norflash_config - use nor flash
+
+ You can choose to boot directly from U-Boot at config step
+ make at91sam9263ek_norflash_boot_config - boot from nor flash
+
+
+------------------------------------------------------------------------------
+AT91SAM9M10G45EK
+------------------------------------------------------------------------------
+
+Memory map
+ 0x20000000 - 23FFFFFF SDRAM (64 MB)
+ 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J12)
+
+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 at91sam9m10g45ek) :
+ make at91sam9m10g45ek_config - use data flash (spi cs0) (default)
+ make at91sam9m10g45ek_nandflash_config - use nand flash
+ make at91sam9m10g45ek_dataflash_cs0_config - use data flash (spi cs0)
------------------------------------------------------------------------------
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)
+
+II. Watchdog support
+
+ 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).
+
+ In the U-Boot configuration, the AT91 watchdog support is enabled using
+ the CONFIG_AT91SAM9_WATCHDOG and CONFIG_HW_WATCHDOG options.