Add the '-@' DTC option for the starfive devices. This option populates the '__symbols__' node that contains all the necessary symbols for supporting device-tree overlays (for instance from the firmware or the bootloader) on these devices. The starfive devices allow various modules to be connected and this enables users to create out-of-tree device-tree overlays for these modules. Please note that this change does increase the size of the resulting DTB by ~20%. For example, with v6.4 increase in size is as follows: jh7100-beaglev-starlight.dtb 6192 -> 7339 jh7100-starfive-visionfive-v1.dtb 6281 -> 7428 jh7110-starfive-visionfive-2-v1.2a.dtb 11101 -> 13447 jh7110-starfive-visionfive-2-v1.3b.dtb 11101 -> 13447 Signed-off-by: Felix Moessbauer <felix.moessbauer@xxxxxxxxxxx> --- arch/riscv/boot/dts/starfive/Makefile | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/riscv/boot/dts/starfive/Makefile b/arch/riscv/boot/dts/starfive/Makefile index 170956846d49..0141504c0f5c 100644 --- a/arch/riscv/boot/dts/starfive/Makefile +++ b/arch/riscv/boot/dts/starfive/Makefile @@ -1,4 +1,10 @@ # SPDX-License-Identifier: GPL-2.0 +# Enables support for device-tree overlays +DTC_FLAGS_jh7100-beaglev-starlight := -@ +DTC_FLAGS_jh7100-starfive-visionfive-v1 := -@ +DTC_FLAGS_jh7110-starfive-visionfive-2-v1.2a := -@ +DTC_FLAGS_jh7110-starfive-visionfive-2-v1.3b := -@ + dtb-$(CONFIG_ARCH_STARFIVE) += jh7100-beaglev-starlight.dtb dtb-$(CONFIG_ARCH_STARFIVE) += jh7100-starfive-visionfive-v1.dtb -- 2.39.2
