Add the '-@' DTC option for the sun8i-h3 pi-class 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. These 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 ~30%. For example, with v6.4 increase in size is as follows: 22909 -> 29564 sun8i-h3-orangepi-lite.dtb 24214 -> 30935 sun8i-h3-bananapi-m2-plus.dtb 23915 -> 30664 sun8i-h3-nanopi-m1-plus.dtb 22969 -> 29537 sun8i-h3-nanopi-m1.dtb 24157 -> 30836 sun8i-h3-nanopi-duo2.dtb 24110 -> 30845 sun8i-h3-orangepi-plus2e.dtb 23472 -> 30037 sun8i-h3-orangepi-one.dtb 24600 -> 31410 sun8i-h3-orangepi-plus.dtb 23618 -> 30230 sun8i-h3-orangepi-2.dtb 22170 -> 28548 sun8i-h3-orangepi-zero-plus2.dtb 23258 -> 29795 sun8i-h3-nanopi-neo-air.dtb 23113 -> 29699 sun8i-h3-zeropi.dtb 22803 -> 29270 sun8i-h3-nanopi-neo.dtb 24674 -> 31318 sun8i-h3-nanopi-r1.dtb 23477 -> 30038 sun8i-h3-orangepi-pc.dtb 24622 -> 31380 sun8i-h3-bananapi-m2-plus-v1.2.dtb 23750 -> 30366 sun8i-h3-orangepi-pc-plus.dtb Signed-off-by: Felix Moessbauer <felix.moessbauer@xxxxxxxxxxx> --- Please note that I only tested the overlay on the sun8i-h3-nanopi-neo device. However, the devices are quite similar and in general the change to add symbols should be pretty safe. Similar patches have been applied to various other devices in the past without any negative effect (except for the increased size). Felix Moessbauer Siemens AG arch/arm/boot/dts/allwinner/Makefile | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/arch/arm/boot/dts/allwinner/Makefile b/arch/arm/boot/dts/allwinner/Makefile index 589a1ce1120a..eebb5a0c873a 100644 --- a/arch/arm/boot/dts/allwinner/Makefile +++ b/arch/arm/boot/dts/allwinner/Makefile @@ -179,6 +179,25 @@ dtb-$(CONFIG_MACH_SUN7I) += \ sun7i-a20-pcduino3-nano.dtb \ sun7i-a20-wexler-tab7200.dtb \ sun7i-a20-wits-pro-a20-dkt.dtb + +# Enables support for device-tree overlays for all pis +DTC_FLAGS_sun8i-h3-orangepi-lite := -@ +DTC_FLAGS_sun8i-h3-bananapi-m2-plus := -@ +DTC_FLAGS_sun8i-h3-nanopi-m1-plus := -@ +DTC_FLAGS_sun8i-h3-nanopi-m1 := -@ +DTC_FLAGS_sun8i-h3-nanopi-duo2 := -@ +DTC_FLAGS_sun8i-h3-orangepi-plus2e := -@ +DTC_FLAGS_sun8i-h3-orangepi-one := -@ +DTC_FLAGS_sun8i-h3-orangepi-plus := -@ +DTC_FLAGS_sun8i-h3-orangepi-2 := -@ +DTC_FLAGS_sun8i-h3-orangepi-zero-plus2 := -@ +DTC_FLAGS_sun8i-h3-nanopi-neo-air := -@ +DTC_FLAGS_sun8i-h3-zeropi := -@ +DTC_FLAGS_sun8i-h3-nanopi-neo := -@ +DTC_FLAGS_sun8i-h3-nanopi-r1 := -@ +DTC_FLAGS_sun8i-h3-orangepi-pc := -@ +DTC_FLAGS_sun8i-h3-bananapi-m2-plus-v1.2 := -@ +DTC_FLAGS_sun8i-h3-orangepi-pc-plus := -@ dtb-$(CONFIG_MACH_SUN8I) += \ sun8i-a23-evb.dtb \ sun8i-a23-gt90h-v4.dtb \ -- 2.39.2
