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patch/kernel/rockchip64-dev/general-rockchip-overlays.patch
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diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile | ||
index 6a33eff..60fc91a 100644 | ||
--- a/arch/arm64/boot/dts/rockchip/Makefile | ||
+++ b/arch/arm64/boot/dts/rockchip/Makefile | ||
@@ -17,3 +17,5 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-puma-haikou.dtb | ||
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire.dtb | ||
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-rockpro64.dtb | ||
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire-excavator.dtb | ||
+ | ||
+subdir-y := $(dts-dirs) overlay | ||
diff --git a/arch/arm64/boot/dts/rockchip/overlay/Makefile b/arch/arm64/boot/dts/rockchip/overlay/Makefile | ||
index e69de29..576e190 100644 | ||
--- /dev/null | ||
+++ b/arch/arm64/boot/dts/rockchip/overlay/Makefile | ||
@@ -0,0 +1,16 @@ | ||
+# SPDX-License-Identifier: GPL-2.0 | ||
+dtbo-$(CONFIG_ARCH_ROCKCHIP) += \ | ||
+ rockchip-i2c8.dtbo | ||
+ | ||
+scr-$(CONFIG_ARCH_ROCKCHIP) += \ | ||
+ rockchip-fixup.scr | ||
+ | ||
+dtbotxt-$(CONFIG_ARCH_ROCKCHIP) += \ | ||
+ README.rockchip-overlays | ||
+ | ||
+targets += $(dtbo-y) $(scr-y) $(dtbotxt-y) | ||
+ | ||
+always := $(dtbo-y) $(scr-y) $(dtbotxt-y) | ||
+clean-files := *.dtbo *.scr | ||
+ | ||
+ | ||
diff --git a/arch/arm64/boot/dts/rockchip/overlay/README.rockchip-overlays b/arch/arm64/boot/dts/rockchip/overlay/README.rockchip-overlays | ||
index e69de29..9512445 100644 | ||
--- /dev/null | ||
+++ b/arch/arm64/boot/dts/rockchip/overlay/README.rockchip-overlays | ||
@@ -0,0 +1,20 @@ | ||
+This document describes overlays provided in the kernel packages | ||
+For generic Armbian overlays documentation please see | ||
+https://docs.armbian.com/User-Guide_Allwinner_overlays/ | ||
+ | ||
+### Platform: | ||
+ | ||
+rockchip (Rockchip) | ||
+ | ||
+### Provided overlays: | ||
+ | ||
+- i2c8 | ||
+ | ||
+### Overlay details: | ||
+ | ||
+### i2c8 | ||
+ | ||
+Activates TWI/I2C bus 8 | ||
+ | ||
+I2C8 pins (SCL, SDA): GPIO1-C4, GPIO1-C5 | ||
+ | ||
diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-fixup.scr-cmd b/arch/arm64/boot/dts/rockchip/overlay/rockchip-fixup.scr-cmd | ||
new file mode 100644 | ||
index 0000000..d4c39e2 | ||
--- /dev/null | ||
+++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-fixup.scr-cmd | ||
@@ -0,0 +1,4 @@ | ||
+# overlays fixup script | ||
+# implements (or rather substitutes) overlay arguments functionality | ||
+# using u-boot scripting, environment variables and "fdt" command | ||
+ | ||
diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-i2c8.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-i2c8.dts | ||
new file mode 100644 | ||
index 0000000..54bc844 | ||
--- /dev/null | ||
+++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-i2c8.dts | ||
@@ -0,0 +1,11 @@ | ||
+/dts-v1/; | ||
+ | ||
+/ { | ||
+ compatible = "rockchip,rk3399"; | ||
+ fragment@0 { | ||
+ target-path = "/i2c@ff3e0000"; | ||
+ __overlay__ { | ||
+ status = "okay"; | ||
+ }; | ||
+ }; | ||
+}; | ||
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib | ||
index 26e6af4..65b9435 100644 | ||
--- a/scripts/Makefile.lib | ||
+++ b/scripts/Makefile.lib | ||
@@ -65,6 +65,9 @@ real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y) | ||
extra-y += $(dtb-y) | ||
extra-$(CONFIG_OF_ALL_DTBS) += $(dtb-) | ||
|
||
+# Overlay targets | ||
+extra-y += $(dtbo-y) $(scr-y) $(dtbotxt-y) | ||
+ | ||
# Add subdir path | ||
|
||
extra-y := $(addprefix $(obj)/,$(extra-y)) |