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menuconfig BR2_TARGET_AT91BOOTSTRAP
depends on BR2_arm
bool "AT91 Bootstrap"
help
AT91Bootstrap is a first level bootloader for the Atmel AT91
devices. It integrates algorithms for:
- Device initialization such as clock configuration, PIO settings...
- Peripheral drivers such as PIO, PMC or SDRAMC...
- Physical media algorithm such as DataFlash, NandFlash, NOR Flash...
if BR2_TARGET_AT91BOOTSTRAP
config BR2_TARGET_AT91BOOTSTRAP_BOARD
string "Bootstrap board"
default ""
help
This is used to do a make <board>_config
choice
prompt "Boot Memory"
default BR2_TARGET_AT91BOOT_DATAFLASHCARD
help
Select Chip for which AT91 bootstrap should be built
config BR2_TARGET_AT91BOOT_DATAFLASH
bool "AT45 Dataflash"
config BR2_TARGET_AT91BOOT_DATAFLASHCARD
bool "AT45 Dataflash Card"
config BR2_TARGET_AT91BOOT_NANDFLASH
bool "NAND Flash"
config BR2_TARGET_AT91BOOT_FLASH
bool "Internal Flash or external parallel flash"
config BR2_TARGET_AT91BOOT_SDCARD
bool "SD-Card"
config BR2_TARGET_AT91BOOT_EEPROM
bool "EEPROM"
endchoice
config BR2_TARGET_AT91BOOTSTRAP_MEMORY
string
default "dataflash" if BR2_TARGET_AT91BOOT_DATAFLASH
default "dataflashcard" if BR2_TARGET_AT91BOOT_DATAFLASHCARD
default "nandflash" if BR2_TARGET_AT91BOOT_NANDFLASH
default "flash" if BR2_TARGET_AT91BOOT_FLASH
default "sdcard" if BR2_TARGET_AT91BOOT_SDCARD
default "eeprom" if BR2_TARGET_AT91BOOT_EEPROM
config BR2_AT91BOOTSTRAP_IMG_SIZE
string "Image Size to copy to SDRAM"
default "0x32000" if BR2_TARGET_AT91BOOT_DATAFLASH
default "0x32000" if BR2_TARGET_AT91BOOT_DATAFLASHCARD
default "0x30000" if BR2_TARGET_AT91BOOT_NANDFLASH
default "0x100000" if BR2_TARGET_AT91BOOT_FLASH
default "0x30000" if BR2_TARGET_AT91BOOT_SDCARD
default "0x30000" if BR2_TARGET_AT91BOOT_EEPROM
help
Select the size of your application
AT91 Bootstrap will copy this amount from flash to SDRAM
choice
prompt "Start address of application"
default BR2_AT91BOOTSTRAP_JUMP_TO_DEFAULT
help
Location of the application start address
config BR2_AT91BOOTSTRAP_JUMP_TO_DEFAULT
bool "Copy to the default U-Boot start location in the SDRAM"
help
This is where you copy the U-Boot boot loader
config BR2_AT91BOOTSTRAP_JUMP_TO_HIGH_SDRAM
bool "Copy to the last Megabyte of the SDRAM"
help
This is where you copy a boot loader
config BR2_AT91BOOTSTRAP_JUMP_TO_START_OF_SDRAM
bool "Copy to the start of the SDRAM"
help
This is where you copy a standalone application
endchoice
config BR2_AT91BOOTSTRAP_JUMP_ADDR
string
default "0x23F00000" if BR2_AT91BOOTSTRAP_JUMP_TO_DEFAULT
default "0x23F00000" if BR2_AT91BOOTSTRAP_JUMP_TO_HIGH_SDRAM
default "0x20000000" if BR2_AT91BOOTSTRAP_JUMP_TO_START_OF_SDRAM
endif
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