projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 89a7a87f NF |
1 | Atmel AT91 Evaluation kits |
| 2 | ||
| 3 | http://atmel.com/dyn/products/tools.asp?family_id=605#1443 | |
| 4 | ||
| 843a2654 | 5 | I. Board mapping & boot media |
| 89a7a87f | 6 | ------------------------------------------------------------------------------ |
| df486b1f | 7 | AT91SAM9260EK, AT91SAM9G20EK & AT91SAM9XEEK |
| 89a7a87f NF |
8 | ------------------------------------------------------------------------------ |
| 9 | ||
| 10 | Memory map | |
| 11 | 0x20000000 - 23FFFFFF SDRAM (64 MB) | |
| 12 | 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J13) | |
| 13 | 0xD0000000 - Dxxxxxxx Soldered Atmel Dataflash | |
| 14 | ||
| 15 | Environment 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 | ------------------------------------------------------------------------------ | |
| 30 | AT91SAM9261EK | |
| 31 | ------------------------------------------------------------------------------ | |
| 32 | ||
| 33 | Memory map | |
| 34 | 0x20000000 - 23FFFFFF SDRAM (64 MB) | |
| 35 | 0xC0000000 - Cxxxxxxx Soldered Atmel Dataflash | |
| 36 | 0xD0000000 - Dxxxxxxx Atmel Dataflash card (J22) | |
| 37 | ||
| 38 | Environment 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 | ------------------------------------------------------------------------------ | |
| 53 | AT91SAM9263EK | |
| 54 | ------------------------------------------------------------------------------ | |
| 55 | ||
| 56 | Memory map | |
| 57 | 0x20000000 - 23FFFFFF SDRAM (64 MB) | |
| 58 | 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J9) | |
| 59 | ||
| 60 | Environment 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 | ------------------------------------------------------------------------------ | |
| 73 | AT91SAM9RLEK | |
| 74 | ------------------------------------------------------------------------------ | |
| 75 | ||
| 76 | Memory map | |
| 77 | 0x20000000 - 23FFFFFF SDRAM (64 MB) | |
| 78 | 0xC0000000 - Cxxxxxxx Soldered Atmel Dataflash | |
| 79 | ||
| 80 | Environment 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) | |
| 843a2654 JCPV |
90 | |
| 91 | II. 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. |