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Nicolas Ferre89a7a872008-12-06 13:11:14 +01001Atmel AT91 Evaluation kits
2
3http://atmel.com/dyn/products/tools.asp?family_id=605#1443
4
Jean-Christophe PLAGNIOL-VILLARD843a2652009-03-27 23:26:42 +01005I. Board mapping & boot media
Nicolas Ferre89a7a872008-12-06 13:11:14 +01006------------------------------------------------------------------------------
Nicolas Ferredf486b12009-03-22 14:48:16 +01007AT91SAM9260EK, AT91SAM9G20EK & AT91SAM9XEEK
Nicolas Ferre89a7a872008-12-06 13:11:14 +01008------------------------------------------------------------------------------
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
66 You can choose your storage location at config step (here for at91sam9260ek) :
67 make at91sam9263ek_config - use data flash (spi cs0) (default)
68 make at91sam9263ek_nandflash_config - use nand flash
69 make at91sam9263ek_dataflash_cs0_config - use data flash (spi cs0)
70
71
72------------------------------------------------------------------------------
73AT91SAM9RLEK
74------------------------------------------------------------------------------
75
76Memory map
77 0x20000000 - 23FFFFFF SDRAM (64 MB)
78 0xC0000000 - Cxxxxxxx Soldered Atmel Dataflash
79
80Environment variables
81
82 U-Boot environment variables can be stored at different places:
83 - Dataflash on SPI chip select 0
84 - Nand flash.
85
86 You can choose your storage location at config step (here for at91sam9260ek) :
87 make at91sam9263ek_config - use data flash (spi cs0) (default)
88 make at91sam9263ek_nandflash_config - use nand flash
89 make at91sam9263ek_dataflash_cs0_config - use data flash (spi cs0)
Jean-Christophe PLAGNIOL-VILLARD843a2652009-03-27 23:26:42 +010090
91II. Watchdog support
92
93 For security reasons, the at91 watchdog is running at boot time and,
94 if deactivated, cannot be used anymore.
95 If you want to use the watchdog, you will need to keep it running in
96 your code (make sure not to disable it in AT91Bootstrap for instance).
97
98 In the U-Boot configuration, the AT91 watchdog support is enabled using
99 the CONFIG_AT91SAM9_WATCHDOG and CONFIG_HW_WATCHDOG options.