U-boot environment binary and SAM-BA scripts

AT91SAM9 Evaluation Boards

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Joined: Thu Jan 23, 2014 9:31 pm

U-boot environment binary and SAM-BA scripts

Wed Jul 02, 2014 10:32 pm


In sam-ba script (demo_script_linux_nandflash), there's a line for programming the u-boot environment binary file (ubootEnvtFileNandFlash.bin) to NAND flash, but there's also a whole different section for setting the same u-boot variables in the script file:

Code: Select all

set bootCmd [set_boot_cmd $boardFamily $dtbLoadAddr $dtbAddr $dtbSize $kernelLoadAddr $kernelAddr $kernelSize]

lappend u_boot_variables \
    "bootdelay=1" \
    "baudrate=115200" \
    "stdin=serial" \
    "stdout=serial" \
    "stderr=serial" \
    "bootargs=console=ttyS0,115200 mtdparts=atmel_nand:256k(bootstrap)ro,512k(uboot)ro,256k(env),256k(env_redundant),
     256k(spare),512k(dtb),6M(kernel)ro,-(rootfs) rootfstype=ubifs ubi.mtd=7 root=ubi0:rootfs rw" \
I don't understand the SAM-BA tcl script so well..

Which variables the U-boot will have after re-flashing the NAND with this script, the variables from the ubootEnvtFileNandFlash.bin or variables set in the script?

Thanks for any advice!

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