U-Boot

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Das U-Boot
U-Boot on the Neo FreeRunner
U-Boot on the Neo FreeRunner
Name Das U-Boot
1st stage
Works
2nd stage
Works
Resources homepage source code

U-Boot (Das U-Boot) is a first-stage and second-stage bootloader used primarily in embedded devices to handle the booting instructions to boot an operating system kernel.

v2020.10 or older

U-Boot v2020.10 or older fail to compile, requiring a patch to be applied

--- a/Makefile
+++ b/Makefile
@@ -970,6 +970,8 @@
 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
 
+LDFLAGS_u-boot += -z notext $(call ld-option, --apply-dynamic-relocs)
+
 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 endif

See also