1 Atmel AT91 Evaluation kits
3 I. Board mapping & boot media
4 ------------------------------------------------------------------------------
5 AT91SAM9260EK, AT91SAM9G20EK & AT91SAM9XEEK
6 ------------------------------------------------------------------------------
9 0x20000000 - 23FFFFFF SDRAM (64 MB)
10 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J13)
11 0xD0000000 - D07FFFFF Soldered Atmel Dataflash (AT45DB642)
15 U-Boot environment variables can be stored at different places:
16 - Dataflash on SPI chip select 1 (default)
17 - Dataflash on SPI chip select 0 (dataflash card)
20 You can choose your storage location at config step (here for at91sam9260ek) :
21 make at91sam9260ek_nandflash_config - use nand flash
22 make at91sam9260ek_dataflash_cs0_config - use data flash (spi cs0)
23 make at91sam9260ek_dataflash_cs1_config - use data flash (spi cs1)
26 ------------------------------------------------------------------------------
27 AT91SAM9261EK, AT91SAM9G10EK
28 ------------------------------------------------------------------------------
31 0x20000000 - 23FFFFFF SDRAM (64 MB)
32 0xC0000000 - C07FFFFF Soldered Atmel Dataflash (AT45DB642)
33 0xD0000000 - Dxxxxxxx Atmel Dataflash card (J22)
37 U-Boot environment variables can be stored at different places:
38 - Dataflash on SPI chip select 0 (default)
39 - Dataflash on SPI chip select 3 (dataflash card)
42 You can choose your storage location at config step (here for at91sam9260ek) :
43 make at91sam9261ek_nandflash_config - use nand flash
44 make at91sam9261ek_dataflash_cs0_config - use data flash (spi cs0)
45 make at91sam9261ek_dataflash_cs3_config - use data flash (spi cs3)
48 ------------------------------------------------------------------------------
50 ------------------------------------------------------------------------------
53 0x20000000 - 23FFFFFF SDRAM (64 MB)
54 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J9)
58 U-Boot environment variables can be stored at different places:
59 - Dataflash on SPI chip select 0 (dataflash card)
61 - Nor flash (not populate by default)
63 You can choose your storage location at config step (here for at91sam9260ek) :
64 make at91sam9263ek_nandflash_config - use nand flash
65 make at91sam9263ek_dataflash_cs0_config - use data flash (spi cs0)
66 make at91sam9263ek_norflash_config - use nor flash
68 You can choose to boot directly from U-Boot at config step
69 make at91sam9263ek_norflash_boot_config - boot from nor flash
72 ------------------------------------------------------------------------------
74 ------------------------------------------------------------------------------
77 0x70000000 - 77FFFFFF SDRAM (128 MB)
81 U-Boot environment variables can be stored at different places:
84 You can choose your storage location at config step (here for at91sam9m10g45ek) :
85 make at91sam9m10g45ek_nandflash_config - use nand flash
88 ------------------------------------------------------------------------------
90 ------------------------------------------------------------------------------
93 0x20000000 - 23FFFFFF SDRAM (64 MB)
94 0xC0000000 - C07FFFFF Soldered Atmel Dataflash (AT45DB642)
98 U-Boot environment variables can be stored at different places:
99 - Dataflash on SPI chip select 0
102 You can choose your storage location at config step (here for at91sam9rlek) :
103 make at91sam9rlek_nandflash_config - use nand flash
106 ------------------------------------------------------------------------------
107 AT91SAM9N12EK, AT91SAM9X5EK
108 ------------------------------------------------------------------------------
111 0x20000000 - 27FFFFFF SDRAM (128 MB)
113 Environment variables
115 U-Boot environment variables can be stored at different places:
118 - Serialflash/Dataflash on SPI chip select 0
120 You can choose your storage location at config step (here for at91sam9x5ek) :
121 make at91sam9x5ek_dataflash_config - use data flash
122 make at91sam9x5ek_mmc_config - use sd/mmc card
123 make at91sam9x5ek_nandflash_config - use nand flash
124 make at91sam9x5ek_spiflash_config - use serial flash
127 ------------------------------------------------------------------------------
129 ------------------------------------------------------------------------------
132 0x20000000 - 3FFFFFFF SDRAM (512 MB)
134 Environment variables
136 U-Boot environment variables can be stored at different places:
139 - Serialflash on SPI chip select 0
141 You can choose your storage location at config step (here for sama5d3xek) :
142 make sama5d3xek_mmc_config - use SD/MMC card
143 make sama5d3xek_nandflash_config - use nand flash
144 make sama5d3xek_serialflash_config - use serial flash
149 For security reasons, the at91 watchdog is running at boot time and,
150 if deactivated, cannot be used anymore.
151 If you want to use the watchdog, you will need to keep it running in
152 your code (make sure not to disable it in AT91Bootstrap for instance).
154 In the U-Boot configuration, the AT91 watchdog support is enabled using
155 the CONFIG_AT91SAM9_WATCHDOG and CONFIG_HW_WATCHDOG options.