build/patch/kernel/archive/rockchip64-5.14/general-rockchip-overlays.patch

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
@@ -66,3 +66,5 @@
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-station-p1.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399pro-rock-pi-n10.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-evb1-v10.dtb
+
+subdir-y       := $(dts-dirs) overlay
diff --git a/arch/arm64/boot/dts/rockchip/overlay/Makefile b/arch/arm64/boot/dts/rockchip/overlay/Makefile
index e69de29..576e190 100644
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/overlay/Makefile
@@ -0,0 +1,22 @@
+# SPDX-License-Identifier: GPL-2.0
+dtbo-$(CONFIG_ARCH_ROCKCHIP) += \
+	rockchip-i2c7.dtbo \
+	rockchip-i2c8.dtbo \
+	rockchip-pcie-gen2.dtbo \
+	rockchip-spi-jedec-nor.dtbo \
+	rockchip-spi-spidev.dtbo \
+	rockchip-uart4.dtbo \
+	rockchip-dwc3-0-host.dtbo \
+	rockchip-w1-gpio.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 +1,106 @@
+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:
+
+- i2c7, i2c8, pcie-gen2, spi-spidev, uart4, w1-gpio
+
+### Overlay details:
+
+### i2c7
+
+Activates TWI/I2C bus 7
+
+I2C7 pins (DVP) (SCL, SDA): GPIO2-B0, GPIO2-A7
+
+### i2c8
+
+Activates TWI/I2C bus 8
+
+I2C8 pins (pi-conn) (pi-conn) (SCL, SDA): GPIO1-C5, GPIO1-C4
+
+### pcie-gen2
+
+Enables PCIe Gen2 link speed on RK3399.
+WARNING! Not officially supported by Rockchip!!!
+
+### spi-jedec-nor
+
+Activates MTD support for JEDEC compatible SPI NOR flash chips on SPI bus
+supported by the kernel SPI NOR driver
+
+SPI 0 pins (MOSI, MISO, SCK, CS): GPIO3_A5, GPIO3_A4, GPIO3_A6, GPIO3_A7
+SPI 1 pins (MOSI, MISO, SCK, CS): GPIO1_A7, GPIO1_B0, GPIO1_B1, GPIO1_B2
+SPI 2 pins (MOSI, MISO, SCK, CS): GPIO1_C0, GPIO1_B7, GPIO1_C1, GPIO1_C2
+SPI 3 pins (MOSI, MISO, SCK, CS): GPIO2_B2, GPIO2_B1, GPIO2_B3, GPIO2_B4
+
+Parameters:
+
+param_spinor_spi_bus (int)
+	SPI bus to activate SPI NOR flash support on
+	Required
+	Supported values: 0, 1, 2
+
+param_spinor_max_freq (int)
+	Maximum SPI frequency
+	Optional
+	Default: 1000000
+	Range: 3000 - 100000000
+
+### spi-spidev
+
+Activates SPIdev device node (/dev/spidevX.Y) for userspace SPI access,
+where X is the bus number and Y is the CS number
+
+SPI 0 pins (MOSI, MISO, SCK, CS): GPIO3_A5, GPIO3_A4, GPIO3_A6, GPIO3_A7
+SPI 1 pins (MOSI, MISO, SCK, CS): GPIO1_A7, GPIO1_B0, GPIO1_B1, GPIO1_B2
+SPI 2 pins (MOSI, MISO, SCK, CS): GPIO1_C0, GPIO1_B7, GPIO1_C1, GPIO1_C2
+SPI 3 pins (MOSI, MISO, SCK, CS): GPIO2_B2, GPIO2_B1, GPIO2_B3, GPIO2_B4
+
+Parameters:
+
+param_spidev_spi_bus (int)
+	SPI bus to activate SPIdev support on
+	Required
+	Supported values: 0, 1
+
+param_spidev_spi_cs (int)
+	SPI chip select number
+	Optional
+	Default: 0
+	Supported values: 0, 1
+	Using chip select 1 requires using "spi-add-cs1" overlay
+
+param_spidev_max_freq (int)
+	Maximum SPIdev frequency
+	Optional
+	Default: 1000000
+	Range: 3000 - 100000000
+
+### uart4
+
+Activates UART4
+
+UART4 pins (RX, TX): GPIO1_A7, GPIO1_B0
+
+Notice: UART4 cannot be activated together with SPI1 - they share the sam pins.
+Enabling this overlay disables SPI1.
+
+### dwc3-0-host
+
+Forces port 0 of the DesignWare xHCI controller to host mode.
+
+This can be used on plaforms such as NanoPC-T4, where devices plugged into the
+USB-C port may not be detected otherwise.
+
+### w1-gpio
+
+Activates 1-Wire GPIO master
+Requires an external pull-up resistor on the data pin
+or enabling the internal pull-up
+
+Parameters:
+
+param_w1_pin (pin)
+	Data pin for 1-Wire master
+	Optional
+	Default: PD14
+
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 +1,62 @@
+# overlays fixup script
+# implements (or rather substitutes) overlay arguments functionality
+# using u-boot scripting, environment variables and "fdt" command
+
+setenv decompose_pin 'setexpr tmp_pinctrl sub "GPIO(0|1|2|3|4)_\\S\\d+" "\\1";
+setexpr tmp_bank sub "GPIO\\d_(\\S)\\d+" "\\1";
+test "${tmp_bank}" = "A" && setenv tmp_bank 0;
+test "${tmp_bank}" = "B" && setenv tmp_bank 1;
+test "${tmp_bank}" = "C" && setenv tmp_bank 2;
+test "${tmp_bank}" = "D" && setenv tmp_bank 3;
+setexpr tmp_pin sub "GPIO\\d_\\S(\\d+)" "\\1";
+setexpr tmp_bank ${tmp_bank} * 8;
+setexpr tmp_pin ${tmp_bank} + ${tmp_pin}'
+
+
+if test -n "${param_spinor_spi_bus}"; then
+	test "${param_spinor_spi_bus}" = "0" && setenv tmp_spi_path "spi@ff1c0000"
+	test "${param_spinor_spi_bus}" = "1" && setenv tmp_spi_path "spi@ff1d0000"
+	test "${param_spinor_spi_bus}" = "2" && setenv tmp_spi_path "spi@ff1e0000"
+	test "${param_spinor_spi_bus}" = "3" && setenv tmp_spi_path "spi@ff1f0000"
+	fdt set /${tmp_spi_path} status "okay"
+	fdt set /${tmp_spi_path}/spiflash@0 status "okay"
+	if test -n "${param_spinor_max_freq}"; then
+		fdt set /${tmp_spi_path}/spiflash@0 spi-max-frequency "<${param_spinor_max_freq}>"
+	fi
+	if test "${param_spinor_spi_cs}" = "1"; then
+		fdt set /${tmp_spi_path}/spiflash@0 reg "<1>"
+	fi
+	env delete tmp_spi_path
+fi
+
+if test -n "${param_spidev_spi_bus}"; then
+	test "${param_spidev_spi_bus}" = "0" && setenv tmp_spi_path "spi@ff1c0000"
+	test "${param_spidev_spi_bus}" = "1" && setenv tmp_spi_path "spi@ff1d0000"
+	test "${param_spidev_spi_bus}" = "2" && setenv tmp_spi_path "spi@ff1e0000"
+	test "${param_spidev_spi_bus}" = "3" && setenv tmp_spi_path "spi@ff1f0000"
+	fdt set /${tmp_spi_path} status "okay"
+	fdt set /${tmp_spi_path}/spidev status "okay"
+	if test -n "${param_spidev_max_freq}"; then
+		fdt set /${tmp_spi_path}/spidev spi-max-frequency "<${param_spidev_max_freq}>"
+	fi
+	if test "${param_spidev_spi_cs}" = "1"; then
+		fdt set /${tmp_spi_path}/spidev reg "<1>";
+	fi
+fi
+
+if test -n "${param_w1_pin}"; then
+	setenv tmp_pinctrl "${param_w1_pin}"
+	setenv tmp_bank "${param_w1_pin}"
+	setenv tmp_pin "${param_w1_pin}"
+	run decompose_pin
+	#echo "${param_w1_pin} ---> pinctrl = ${tmp_pinctrl}"
+	#echo "${param_w1_pin} ---> bank = ${tmp_bank}"
+	#echo "${param_w1_pin} ---> pin = ${tmp_pin}"
+	fdt get value tmp_pinctrl /__symbols__	gpio${tmp_pinctrl}
+	#echo "${param_w1_pin} ---> tmp_pinctrl = ${tmp_pinctrl}"
+	fdt get value tmp_phandle ${tmp_pinctrl} phandle
+	#echo "${param_w1_pin} ---> tmp_phandle = ${tmp_phandle}"
+	fdt set /onewire@0 gpios "<${tmp_phandle} 0x000000${tmp_pin} 0 0>"
+	env delete tmp_pinctrl tmp_bank tmp_pin tmp_phandle
+fi
+
diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-i2c7.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-i2c7.dts
new file mode 100644
index 0000000..54bc844
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-i2c7.dts
@@ -0,0 +1,11 @@
+/dts-v1/;
+
+/ {
+    compatible = "rockchip,rk3399";
+    fragment@0 {
+        target-path = "/i2c@ff160000";
+        __overlay__ {
+            status = "okay";
+        };
+    };
+};
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/arch/arm64/boot/dts/rockchip/overlay/rockchip-pcie-gen2.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-pcie-gen2.dts
new file mode 100644
index 0000000..54bc844
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-pcie-gen2.dts
@@ -0,0 +1,12 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+    compatible = "rockchip,rk3399";
+    fragment@0 {
+        target = <&pcie0>;
+        __overlay__ {
+            max-link-speed = <2>;
+        };
+    };
+};
diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-spi-jedec-nor.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-spi-jedec-nor.dts
new file mode 100644
index 0000000..3a2be38
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-spi-jedec-nor.dts
@@ -0,0 +1,72 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "rockchip,rk3399";
+
+	fragment@0 {
+		target-path = "/aliases";
+		__overlay__ {
+			spi0 = "/spi@ff1c0000";
+			spi1 = "/spi@ff1d0000";
+			spi2 = "/spi@ff1e0000";
+			spi3 = "/spi@ff1f0000";
+		};
+	};
+
+	fragment@1 {
+		target = <&spi0>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			spiflash@0 {
+				compatible = "jedec,spi-nor";
+				reg = <0>;
+				spi-max-frequency = <10000000>;
+				status = "disabled";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&spi1>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			spiflash@0 {
+				compatible = "jedec,spi-nor";
+				reg = <0>;
+				spi-max-frequency = <10000000>;
+				status = "disabled";
+			};
+		};
+	};
+
+	fragment@3 {
+		target = <&spi2>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			spiflash@0 {
+				compatible = "jedec,spi-nor";
+				reg = <0>;
+				spi-max-frequency = <10000000>;
+				status = "disabled";
+			};
+		};
+	};
+
+	fragment@4 {
+		target = <&spi3>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			spiflash@0 {
+				compatible = "jedec,spi-nor";
+				reg = <0>;
+				spi-max-frequency = <10000000>;
+				status = "disabled";
+			};
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-spi-spidev.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-spi-spidev.dts
new file mode 100644
index 0000000..fe8fb14
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-spi-spidev.dts
@@ -0,0 +1,72 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "rockchip,rk3399";
+
+	fragment@0 {
+		target-path = "/aliases";
+		__overlay__ {
+			spi0 = "/spi@ff1c0000";
+			spi1 = "/spi@ff1d0000";
+			spi2 = "/spi@ff1e0000";
+			spi3 = "/spi@ff1f0000";
+		};
+	};
+
+	fragment@1 {
+		target = <&spi0>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			spidev {
+				compatible = "spidev";
+				status = "disabled";
+				reg = <0>;
+				spi-max-frequency = <10000000>;
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&spi1>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			spidev {
+				compatible = "spidev";
+				status = "disabled";
+				reg = <0>;
+				spi-max-frequency = <10000000>;
+			};
+		};
+	};
+
+	fragment@3 {
+		target = <&spi2>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			spidev {
+				compatible = "spidev";
+				status = "disabled";
+				reg = <0>;
+				spi-max-frequency = <10000000>;
+			};
+		};
+	};
+
+	fragment@4 {
+		target = <&spi3>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			spidev {
+				compatible = "spidev";
+				status = "disabled";
+				reg = <0>;
+				spi-max-frequency = <10000000>;
+			};
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-uart4.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-uart4.dts
new file mode 100644
index 0000000..fe8fb14
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-uart4.dts
@@ -0,0 +1,20 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "rockchip,rk3399";
+
+	fragment@0 {
+		target = <&spi1>;
+		__overlay__ {
+			status = "disabled";
+		};
+	};
+
+	fragment@1 {
+		target = <&uart4>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-dwc3-0-host.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-dwc3-0-host.dts
new file mode 100644
index 0000000..abcd123
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-dwc3-0-host.dts
@@ -0,0 +1,13 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "rockchip,rk3399";
+
+	fragment@0 {
+		target = <&usbdrd_dwc3_0>;
+		__overlay__ {
+			dr_mode = "host";
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-w1-gpio.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-w1-gpio.dts
new file mode 100644
index 0000000..bfbc16a
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-w1-gpio.dts
@@ -0,0 +1,20 @@
+// Definitions for w1-gpio module (without external pullup)
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "rockchip,rk3399";
+
+	fragment@0 {
+		target-path = "/";
+		__overlay__ {
+
+			w1: onewire@0 {
+				compatible = "w1-gpio";
+				pinctrl-names = "default";
+				gpios = <&gpio1 4 0 0xae>; // GPIO1_A4
+				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))