From 0801a3a9f35854c91f1f3ab8e879c3d14912d214 Mon Sep 17 00:00:00 2001 From: Felix Moessbauer Date: Tue, 27 Jun 2023 21:37:03 +0800 Subject: [PATCH] arm: dts: Enable device-tree overlay support for sun8i-h3 pi devices 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 Acked-by: Jernej Skrabec Link: https://lore.kernel.org/r/20230627133703.355893-1-felix.moessbauer@siemens.com Signed-off-by: Jernej Skrabec --- 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 589a1ce..eebb5a0 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 \ -- 2.7.4