In Kbuild, the build system generally descends into each directory from its parent directory, but SOC directory is one of the rule violations.
My motivation of this series is to make further refactoring possible.
You might perhaps wonder if the build system works equivalently especially with 3/4. I built all the boards to confirm that no boards are broken. Moreover, 2/4 thru 4/4 do not change anything, i.e. produce the same check sums.
Masahiro Yamada (4): kbuild: Descend into SOC directory from CPU directory x86: use CONFIG_SYS_COREBOOT to descend into coreboot/ directory kbuild: use SoC-specific CONFIG to descend into SoC directory tegra: do not descend into empty directories
Makefile | 3 --- arch/arm/cpu/arm1136/Makefile | 3 +++ arch/arm/cpu/arm1176/Makefile | 3 +++ arch/arm/cpu/arm720t/Makefile | 4 ++++ arch/arm/cpu/arm920t/Makefile | 7 +++++++ arch/arm/cpu/arm926ejs/Makefile | 15 +++++++++++++++ arch/arm/cpu/armv7/Makefile | 25 +++++++++++++++++++++++++ arch/arm/cpu/armv7/tegra114/Makefile | 21 --------------------- arch/arm/cpu/armv7/tegra124/Makefile | 9 --------- arch/arm/cpu/armv7/tegra30/Makefile | 21 --------------------- arch/arm/cpu/armv8/Makefile | 2 ++ arch/avr32/cpu/Makefile | 2 ++ arch/mips/cpu/mips32/Makefile | 2 ++ arch/nds32/cpu/n1213/Makefile | 6 +++--- arch/x86/cpu/Makefile | 2 ++ arch/x86/cpu/coreboot/Makefile | 12 ++++++------ board/davinci/da8xxevm/u-boot-spl-hawk.lds | 2 +- scripts/Makefile.spl | 3 --- 18 files changed, 75 insertions(+), 67 deletions(-) delete mode 100644 arch/arm/cpu/armv7/tegra114/Makefile delete mode 100644 arch/arm/cpu/armv7/tegra124/Makefile delete mode 100644 arch/arm/cpu/armv7/tegra30/Makefile