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U-Boot allows specifying additional KConfig fragments to be applied on
top of a defconfig. These are usually located in the board
sub-directory.
make foo_defconfig bar.config baz.config
Add support for specifying additional KConfig fragments using the
UBOOT_CONFIG variable. Treat the first word in UBOOT_CONFIG as the name
of the defconfig, any additional words as additional fragments.
This can be useful to distinguish between different variants of U-Boot
builds such as different RAM, storage (NAND/eMMC), security etc.
While c05c0699d479 (u-boot.mk: add support for config customization,
2023-06-02) already added means to modify specific KConfig options
directly from the OpenWrt Makefile, leveraging existing fragments the
U-Boot source-dir provides a more convenient way to extend the config
when customising more than just one or two options. Furthermore it is
desirable to leverage existing fragments from upstream U-Boot where they
exist.
Signed-off-by: Andreas Gnau <andreas.gnau@iopsys.eu>
Link: https://github.com/openwrt/openwrt/pull/18963
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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| .. | ||
| site | ||
| autotools.mk | ||
| bpf.mk | ||
| cmake.mk | ||
| debug.mk | ||
| default-packages.mk | ||
| depends.mk | ||
| device_table.txt | ||
| download.mk | ||
| feeds.mk | ||
| hardened-ld-pie.specs | ||
| hardening.mk | ||
| host-build.mk | ||
| image-commands.mk | ||
| image.mk | ||
| kernel-build.mk | ||
| kernel-defaults.mk | ||
| kernel-version.mk | ||
| kernel.mk | ||
| logo.png | ||
| logo.svg | ||
| meson.mk | ||
| netfilter.mk | ||
| nls.mk | ||
| openssl-module.mk | ||
| optee-os.mk | ||
| package-bin.mk | ||
| package-defaults.mk | ||
| package-dumpinfo.mk | ||
| package-pack.mk | ||
| package-seccomp.mk | ||
| package.mk | ||
| prereq-build.mk | ||
| prereq.mk | ||
| quilt.mk | ||
| rootfs.mk | ||
| scan.awk | ||
| scan.mk | ||
| shell.sh | ||
| subdir.mk | ||
| target.mk | ||
| toolchain-build.mk | ||
| toplevel.mk | ||
| trusted-firmware-a.mk | ||
| u-boot.mk | ||
| uclibc++.mk | ||
| unpack.mk | ||
| verbose.mk | ||
| version.mk | ||
