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Fix for RUTX platform

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Ycarus (Yannick Chabanois) 2022-03-28 18:17:07 +02:00
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root/package/utils/sysupgrade-helper/src/doc/README.at91 Normal file
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Atmel AT91 Evaluation kits
http://atmel.com/dyn/products/tools.asp?family_id=605#1443
I. Board mapping & boot media
------------------------------------------------------------------------------
AT91SAM9260EK, AT91SAM9G20EK & AT91SAM9XEEK
------------------------------------------------------------------------------
Memory map
0x20000000 - 23FFFFFF SDRAM (64 MB)
0xC0000000 - Cxxxxxxx Atmel Dataflash card (J13)
0xD0000000 - Dxxxxxxx Soldered Atmel Dataflash
Environment variables
U-Boot environment variables can be stored at different places:
- Dataflash on SPI chip select 1 (default)
- Dataflash on SPI chip select 0 (dataflash card)
- 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)
------------------------------------------------------------------------------
AT91SAM9261EK, AT91SAM9G10EK
------------------------------------------------------------------------------
Memory map
0x20000000 - 23FFFFFF SDRAM (64 MB)
0xC0000000 - Cxxxxxxx Soldered Atmel Dataflash
0xD0000000 - Dxxxxxxx Atmel Dataflash card (J22)
Environment variables
U-Boot environment variables can be stored at different places:
- Dataflash on SPI chip select 0 (default)
- Dataflash on SPI chip select 3 (dataflash card)
- 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)
------------------------------------------------------------------------------
AT91SAM9263EK
------------------------------------------------------------------------------
Memory map
0x20000000 - 23FFFFFF SDRAM (64 MB)
0xC0000000 - Cxxxxxxx Atmel Dataflash card (J9)
Environment variables
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)
------------------------------------------------------------------------------
AT91SAM9RLEK
------------------------------------------------------------------------------
Memory map
0x20000000 - 23FFFFFF SDRAM (64 MB)
0xC0000000 - Cxxxxxxx Soldered Atmel Dataflash
Environment variables
U-Boot environment variables can be stored at different places:
- 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)
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.