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[ rockchip-dev ] Add overlays patch

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This commit is contained in:
Thomas McKahan 2018-12-13 19:06:52 -05:00
parent 3a185c8b82
commit 98cc59c17a
1 changed files with 106 additions and 0 deletions
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106
patch/kernel/rockchip-dev/general-add-overlays.patch Normal file
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@ -0,0 +1,106 @@
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 6d4ff8cdf..2d0b2f4c4 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -872,7 +872,8 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += \
rk3288-veyron-minnie.dtb \
rk3288-veyron-pinky.dtb \
rk3288-veyron-speedy.dtb \
- rk3288-vyasa.dtb
+ rk3288-vyasa.dtb
+subdir-y := overlay
dtb-$(CONFIG_ARCH_S3C24XX) += \
s3c2416-smdk2416.dtb
dtb-$(CONFIG_ARCH_S3C64XX) += \
diff --git a/arch/arm/boot/dts/overlay/Makefile b/arch/arm/boot/dts/overlay/Makefile
new file mode 100644
index 000000000..b95172d18
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/Makefile
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+dtbo-$(CONFIG_ARCH_ROCKCHIP) += \
+ rockchip-ds1307.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/arm/boot/dts/overlay/README.rockchip-overlays b/arch/arm/boot/dts/overlay/README.rockchip-overlays
new file mode 100644
index 000000000..ca8d80af1
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/README.rockchip-overlays
@@ -0,0 +1,18 @@
+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:
+
+- ds1307
+
+### Overlay details:
+
+### ds1307
+
+Activates ds1307 rtc on i2c1
+
diff --git a/arch/arm/boot/dts/overlay/rockchip-ds1307.dts b/arch/arm/boot/dts/overlay/rockchip-ds1307.dts
new file mode 100644
index 000000000..e60a37e0f
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/rockchip-ds1307.dts
@@ -0,0 +1,17 @@
+// Definitions for ds1307
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "rockchip,rk3288-miniarm", "rockchip,rk3288";
+
+ fragment@0 {
+ target = <&i2c1>;
+ __overlay__ {
+ rtc: ds1307@68 {
+ compatible = "dallas,ds1307";
+ status = "okay";
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/rockchip-fixup.scr-cmd b/arch/arm/boot/dts/overlay/rockchip-fixup.scr-cmd
new file mode 100644
index 000000000..d4c39e20a
--- /dev/null
+++ b/arch/arm/boot/dts/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/scripts/Makefile.lib b/scripts/Makefile.lib
index db7399a49..6f14d9c7b 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -61,6 +61,9 @@ real-obj-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))