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Diffstat (limited to 'doc/README.at91')
| -rw-r--r-- | doc/README.at91 | 84 |
1 files changed, 67 insertions, 17 deletions
diff --git a/doc/README.at91 b/doc/README.at91 index b51df00..6741213 100644 --- a/doc/README.at91 +++ b/doc/README.at91 @@ -1,6 +1,9 @@ Atmel AT91 Evaluation kits -http://atmel.com/dyn/products/tools.asp?family_id=605#1443 +Index + - I. Board mapping & boot media + - II. NAND partition table + - III. watchdog support I. Board mapping & boot media ------------------------------------------------------------------------------ @@ -10,7 +13,7 @@ AT91SAM9260EK, AT91SAM9G20EK & AT91SAM9XEEK Memory map 0x20000000 - 23FFFFFF SDRAM (64 MB) 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J13) - 0xD0000000 - Dxxxxxxx Soldered Atmel Dataflash + 0xD0000000 - D07FFFFF Soldered Atmel Dataflash (AT45DB642) Environment variables @@ -20,7 +23,6 @@ Environment variables - Nand flash. 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) @@ -32,7 +34,7 @@ AT91SAM9261EK, AT91SAM9G10EK Memory map 0x20000000 - 23FFFFFF SDRAM (64 MB) - 0xC0000000 - Cxxxxxxx Soldered Atmel Dataflash + 0xC0000000 - C07FFFFF Soldered Atmel Dataflash (AT45DB642) 0xD0000000 - Dxxxxxxx Atmel Dataflash card (J22) Environment variables @@ -43,7 +45,6 @@ Environment variables - 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) @@ -65,7 +66,6 @@ Environment variables - 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 @@ -79,19 +79,15 @@ AT91SAM9M10G45EK ------------------------------------------------------------------------------ Memory map - 0x20000000 - 23FFFFFF SDRAM (64 MB) - 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J12) + 0x70000000 - 77FFFFFF SDRAM (128 MB) 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) ------------------------------------------------------------------------------ @@ -100,7 +96,7 @@ AT91SAM9RLEK Memory map 0x20000000 - 23FFFFFF SDRAM (64 MB) - 0xC0000000 - Cxxxxxxx Soldered Atmel Dataflash + 0xC0000000 - C07FFFFF Soldered Atmel Dataflash (AT45DB642) Environment variables @@ -108,12 +104,66 @@ Environment variables - 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) + You can choose your storage location at config step (here for at91sam9rlek) : + make at91sam9rlek_nandflash_config - use nand flash + + +------------------------------------------------------------------------------ +AT91SAM9N12EK, AT91SAM9X5EK +------------------------------------------------------------------------------ + +Memory map + 0x20000000 - 27FFFFFF SDRAM (128 MB) + +Environment variables + + U-Boot environment variables can be stored at different places: + - Nand flash. + - SD/MMC card + - Serialflash/Dataflash on SPI chip select 0 + + You can choose your storage location at config step (here for at91sam9x5ek) : + make at91sam9x5ek_dataflash_config - use data flash + make at91sam9x5ek_mmc_config - use sd/mmc card + make at91sam9x5ek_nandflash_config - use nand flash + make at91sam9x5ek_spiflash_config - use serial flash + + +------------------------------------------------------------------------------ +SAMA5D3XEK +------------------------------------------------------------------------------ + +Memory map + 0x20000000 - 3FFFFFFF SDRAM (512 MB) + +Environment variables + + U-Boot environment variables can be stored at different places: + - Nand flash. + - SD/MMC card + - Serialflash on SPI chip select 0 + + You can choose your storage location at config step (here for sama5d3xek) : + make sama5d3xek_mmc_config - use SD/MMC card + make sama5d3xek_nandflash_config - use nand flash + make sama5d3xek_serialflash_config - use serial flash + + +II. NAND partition table + + All the board support boot from NAND flash will use the following NAND + partition table + + 0x00000000 - 0x0003FFFF bootstrap (256 KiB) + 0x00040000 - 0x000BFFFF u-boot (512 KiB) + 0x000C0000 - 0x000FFFFF env (256 KiB) + 0x00100000 - 0x0013FFFF env_redundant (256 KiB) + 0x00140000 - 0x0017FFFF spare (256 KiB) + 0x00180000 - 0x001FFFFF dtb (512 KiB) + 0x00200000 - 0x007FFFFF kernel (6 MiB) + 0x00800000 - 0xxxxxxxxx rootfs (All left) -II. Watchdog support +III. Watchdog support For security reasons, the at91 watchdog is running at boot time and, if deactivated, cannot be used anymore. |