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https://github.com/AsahiLinux/u-boot
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506df9dc58
1. Convert all linker symbols to char[] type so that we can get the
corresponding address by calling array name 'var' or its address
'&var'. In this way, we can avoid some potential issues[1].
2. Remove unused symbol '_TEXT_BASE'. It has been abandoned and has
not been referenced by any source code.
3. Move '__data_end' to the arch x86's own sections header as it's
only used by x86 arch.
4. Remove some duplicate declared linker symbols. Now we use the
standard header file to declare them.
[1] This patch fixes the boot failure on MIPS target. Error log:
SPL: Image overlaps SPL
Fixes:
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.. | ||
dart_6ul.c | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
README | ||
spl.c |
How to use U-Boot on variscite DART-6UL Evaluation Kit ------------------------------------------------------ - Configure and build U-Boot for DART-6UL iMX6ULL: $ make mrproper $ make variscite_dart6ul_defconfig $ make This will generate SPL and u-boot-dtb.img images. Boot from MMC/SD: - The SPL and u-boot-dtb.img images need to be flashed into the micro SD card: $ sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync $ sudo dd if=u-boot-dtb.img of=/dev/mmcblk0 bs=1k seek=69; sync - Boot mode settings: Boot switch position: SW1 -> 0 SW2 -> 0 Boot from eMMC: - if bootpart is not enabled by default, to enable under Linux echo 0 >/sys/block/mmcblk1boot0/force_ro mmc bootpart enable 1 1 /dev/mmcblk1boot0 - Flash the SPL and u-boot-dtb.img to mmcblk1boot0 $ sudo dd if=SPL of=/dev/mmcblk1boot0 bs=1k seek=1; sync $ sudo dd if=u-boot-dtb.img of=/dev/mmcblk1boot0 bs=1k seek=69; sync - Boot mode settings: Boot switch position: SW1 -> 0 SW2 -> 1 - Connect the Serial cable to UART0 and the PC for the console. - Insert the micro SD card in the board and power it up. - U-Boot messages should come up.