diff options
| -rw-r--r-- | linux/Config.in | 8 | ||||
| -rw-r--r-- | linux/linux.mk | 4 |
2 files changed, 12 insertions, 0 deletions
diff --git a/linux/Config.in b/linux/Config.in index 4f6ae2e9ee..8b04471008 100644 --- a/linux/Config.in +++ b/linux/Config.in @@ -394,6 +394,14 @@ config BR2_LINUX_KERNEL_CUSTOM_DTS_PATH You can provide a list of dts paths to copy and build, separated by spaces. +config BR2_LINUX_KERNEL_DTB_OVERLAY_SUPPORT + bool "Build Device Tree with overlay support" + help + If enabled, pass the "-@" option to dtc, such that + symbols are generated in the compiled Device Tree. + Choose this option to support Device Tree overlays + on the target system. + endif config BR2_LINUX_KERNEL_INSTALL_TARGET diff --git a/linux/linux.mk b/linux/linux.mk index 02def89113..62068106e0 100644 --- a/linux/linux.mk +++ b/linux/linux.mk @@ -143,6 +143,10 @@ ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_8),y) LINUX_MAKE_ENV += KCFLAGS=-Wno-attribute-alias endif +ifeq ($(BR2_LINUX_KERNEL_DTB_OVERLAY_SUPPORT),y) +LINUX_MAKE_ENV += DTC_FLAGS=-@ +endif + # Get the real Linux version, which tells us where kernel modules are # going to be installed in the target filesystem. LINUX_VERSION_PROBED = `$(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) --no-print-directory -s kernelrelease 2>/dev/null` |