diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 4b17f35dc..ff6b68e26 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1062,4 +1062,7 @@ dtstree := $(srctree)/$(src)
dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts))
always := $(dtb-y)
+subdir-y := overlay
clean-files := *.dtb
+
+dts-dirs += overlay
diff --git a/arch/arm/boot/dts/overlay/Makefile b/arch/arm/boot/dts/overlay/Makefile
new file mode 100644
index 000000000..f83b4bbe3
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/Makefile
@@ -0,0 +1,87 @@
+ifeq ($(CONFIG_OF_CONFIGFS),y)
+
+dtbo-$(CONFIG_MACH_SUN4I) += \
+ sun4i-a10-analog-codec.dtbo \
+ sun4i-a10-can.dtbo \
+ sun4i-a10-i2c1.dtbo \
+ sun4i-a10-i2c2.dtbo \
+ sun4i-a10-nand.dtbo \
+ sun4i-a10-pps-gpio.dtbo \
+ sun4i-a10-pwm.dtbo \
+ sun4i-a10-spdif-out.dtbo \
+ sun4i-a10-spi0.dtbo \
+ sun4i-a10-spi1.dtbo \
+ sun4i-a10-spi2.dtbo \
+ sun4i-a10-spi-jedec-nor.dtbo \
+ sun4i-a10-spi-spidev.dtbo \
+ sun4i-a10-uart2.dtbo \
+ sun4i-a10-uart3.dtbo \
+ sun4i-a10-uart4.dtbo \
+ sun4i-a10-uart5.dtbo \
+ sun4i-a10-uart6.dtbo \
+ sun4i-a10-uart7.dtbo \
+ sun4i-a10-w1-gpio.dtbo
+
+dtbo-$(CONFIG_MACH_SUN7I) += \
+ sun7i-a20-analog-codec.dtbo \
+ sun7i-a20-can.dtbo \
+ sun7i-a20-i2c1.dtbo \
+ sun7i-a20-i2c2.dtbo \
+ sun7i-a20-i2c3.dtbo \
+ sun7i-a20-i2c4.dtbo \
+ sun7i-a20-i2s0.dtbo \
+ sun7i-a20-i2s1.dtbo \
+ sun7i-a20-mmc2.dtbo \
+ sun7i-a20-nand.dtbo \
+ sun7i-a20-pps-gpio.dtbo \
+ sun7i-a20-pwm.dtbo \
+ sun7i-a20-spdif-out.dtbo \
+ sun7i-a20-spi0.dtbo \
+ sun7i-a20-spi1.dtbo \
+ sun7i-a20-spi2.dtbo \
+ sun7i-a20-spi-add-cs1.dtbo \
+ sun7i-a20-spi-jedec-nor.dtbo \
+ sun7i-a20-spi-spidev.dtbo \
+ sun7i-a20-uart2.dtbo \
+ sun7i-a20-uart3.dtbo \
+ sun7i-a20-uart4.dtbo \
+ sun7i-a20-uart5.dtbo \
+ sun7i-a20-uart6.dtbo \
+ sun7i-a20-uart7.dtbo \
+ sun7i-a20-w1-gpio.dtbo
+
+dtbo-$(CONFIG_MACH_SUN8I) += \
+ sun8i-h3-analog-codec.dtbo \
+ sun8i-h3-cir.dtbo \
+ sun8i-h3-i2c0.dtbo \
+ sun8i-h3-i2c1.dtbo \
+ sun8i-h3-i2c2.dtbo \
+ sun8i-h3-pps-gpio.dtbo \
+ sun8i-h3-pwm.dtbo \
+ sun8i-h3-spdif-out.dtbo \
+ sun8i-h3-spi-add-cs1.dtbo \
+ sun8i-h3-spi-jedec-nor.dtbo \
+ sun8i-h3-spi-spidev.dtbo \
+ sun8i-h3-uart1.dtbo \
+ sun8i-h3-uart2.dtbo \
+ sun8i-h3-uart3.dtbo \
+ sun8i-h3-usbhost0.dtbo \
+ sun8i-h3-usbhost1.dtbo \
+ sun8i-h3-usbhost2.dtbo \
+ sun8i-h3-usbhost3.dtbo \
+ sun8i-h3-w1-gpio.dtbo
+
+scr-$(CONFIG_MACH_SUN4I) += sun4i-a10-fixup.scr
+scr-$(CONFIG_MACH_SUN7I) += sun7i-a20-fixup.scr
+scr-$(CONFIG_MACH_SUN8I) += sun8i-h3-fixup.scr
+
+dtbotxt-$(CONFIG_MACH_SUN4I) += README.sun4i-a10-overlays
+dtbotxt-$(CONFIG_MACH_SUN7I) += README.sun7i-a20-overlays
+dtbotxt-$(CONFIG_MACH_SUN8I) += README.sun8i-h3-overlays
+
+targets += $(dtbo-y) $(scr-y) $(dtbotxt-y)
+
+endif
+
+always := $(dtbo-y) $(scr-y) $(dtbotxt-y)
+clean-files := *.dtbo *.scr
diff --git a/arch/arm/boot/dts/overlay/README.sun4i-a10-overlays b/arch/arm/boot/dts/overlay/README.sun4i-a10-overlays
new file mode 100644
index 000000000..e0795f13d
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/README.sun4i-a10-overlays
@@ -0,0 +1,278 @@
+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:
+
+sun4i-a10 (Allwinner A10)
+
+### Platform details:
+
+Supported pin banks: PB, PC, PD, PE, PG, PH, PI
+
+SPI controller 0 have 2 exposed hardware CS,
+other SPI controllers have only one hardware CS
+Reference: A10 User manual section 17.4.13, A10 datasheet section 5.2
+
+I2C bus 0 is used for the AXP209 PMIC
+
+### Provided overlays:
+
+- analog-codec
+- can
+- i2c1
+- i2c2
+- nand
+- pps-gpio
+- pwm
+- spdif-out
+- spi0
+- spi1
+- spi2
+- spi-jedec-nor
+- spi-spidev
+- uart1
+- uart2
+- uart3
+- uart4
+- uart5
+- uart6
+- uart7
+- w1-gpio
+
+### Overlay details:
+
+### analog-codec
+
+Activates SoC analog codec driver that provides Line Out and Mic In
+functionality
+
+## can
+
+Activates SoC CAN controller
+
+CAN pins (TX, RX): PH20, PH21
+
+### i2c1
+
+Activates TWI/I2C bus 1
+
+I2C1 pins (SCL, SDA): PB18, PB19
+
+### i2c2
+
+Activates TWI/I2C bus 2
+
+I2C2 pins (SCL, SDA): PB20, PB21
+
+### nand
+
+Activates NAND controller
+
+This overlay should not be used until mainline MLC NAND support
+allows using NAND storage reliably
+
+### pps-gpio
+
+Activates pulse-per-second GPIO client
+
+Parameters:
+
+param_pps_pin (pin)
+ Pin PPS source is connected to
+ Optional
+ Default: PI15
+
+param_pps_falling_edge (bool)
+ Assert by falling edge
+ Optional
+ Default: 0
+ When set (to 1), assert is indicated by a falling edge
+ (instead of by a rising edge)
+
+### pwm
+
+Activates hardware PWM controller
+
+PWM pins (PWM0, PWM1): PB2, PI3
+
+Parameters:
+
+param_pwm_pins (string)
+ PWM pins activated with this overlay
+ Optional
+ Default: both
+ Supported values: 0, 1, both
+ If set to 0 only PWM0 can be used,
+ if set to 1 then only PWM1 can be used,
+ if set to both (default), both PWM0 and PWM1 can be used
+
+### spdif-out
+
+Activates SPDIF/Toslink audio output
+
+SPDIF pin: PB13
+
+### spi0
+
+Activates SPI controller 0 to use it with other overlays and sets up the pin multiplexing for it
+
+SPI 0 pins (MOSI, MISO, SCK, CS0, CS1): PI12, PI13, PI11, PI10, PI14
+
+### spi1
+
+Activates SPI controller 1 to use it with other overlays and sets up the pin multiplexing for it
+
+SPI 1 pins (MOSI, MISO, SCK, CS0): PI18, PI19, PI17, PI16
+
+### spi2
+
+Activates SPI controller 2 to use it with other overlays and sets up the pin multiplexing for it
+
+SPI 2 pins a (MOSI, MISO, SCK, CS0): PC21, PC22, PC20, PC19
+SPI 2 pins b (MOSI, MISO, SCK, CS0): PB16, PB17, PB15, PB14
+
+Parameters:
+
+param_spi2_bus_pins (char)
+ SPI bus 2 pinmux variant
+ Optional
+ Default: a
+ Supported values: a, b
+ Determines what pins SPI bus 2 is exposed on if SPI 2 is used
+
+
+### 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, CS0, CS1): PI12, PI13, PI11, PI10, PI14
+SPI 1 pins (MOSI, MISO, SCK, CS0): PI18, PI19, PI17, PI16
+SPI 2 pins a (MOSI, MISO, SCK, CS0): PC21, PC22, PC20, PC19
+SPI 2 pins b (MOSI, MISO, SCK, CS0): PB16, PB17, PB15, PB14
+
+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, CS0, CS1): PI12, PI13, PI11, PI10, PI14
+SPI 1 pins (MOSI, MISO, SCK, CS0): PI18, PI19, PI17, PI16
+SPI 2 pins a (MOSI, MISO, SCK, CS0): PC21, PC22, PC20, PC19
+SPI 2 pins b (MOSI, MISO, SCK, CS0): PB16, PB17, PB15, PB14
+
+Parameters:
+
+param_spidev_spi_bus (int)
+ SPI bus to activate mcp2515 support on
+ Required
+ Supported values: 0, 1, 2
+
+param_spidev_max_freq (int)
+ Maximum SPIdev frequency
+ Optional
+ Default: 1000000
+ Range: 3000 - 100000000
+
+### uart2
+
+Activates serial port 2 (/dev/ttyS2)
+
+UART 2 pins (TX, RX, RTS, CTS): PI18, PI19, PI16, PI17
+
+Parameters:
+
+param_uart2_rtscts (bool)
+ Enable RTS and CTS pins
+ Optional
+ Default: 0
+ Set to 1 to enable CTS and RTS pins
+
+### uart3
+
+Activates serial port 3 (/dev/ttyS3)
+
+UART 3 pins a (TX, RX, RTS, CTS): PG6, PG7, PG8, PG9
+UART 3 pins b (TX, RX, RTS, CTS): PH0, PH1, PH2, PH3
+
+Parameters:
+
+param_uart3_pins (char)
+ Determines what pins UART 3 is exposed on
+ Optional
+ Default: a
+ Supported values: a, b
+
+param_uart3_rtscts (bool)
+ Enable RTS and CTS pins
+ Optional
+ Default: 0
+ Set to 1 to enable CTS and RTS pins
+
+### uart4
+
+Activates serial port 4 (/dev/ttyS4)
+
+UART 4 pins a (TX, RX): PG10, PG11
+UART 4 pins b (TX, RX): PH4, PH5
+
+Parameters:
+
+param_uart4_pins (char)
+ Determines what pins UART 4 is exposed on
+ Optional
+ Default: a
+ Supported values: a, b
+
+### uart 5
+
+Activates serial port 5 (/dev/ttyS5)
+
+UART 5 pins (TX, RX): PH6, PH7
+
+### uart 6
+
+Activates serial port 6 (/dev/ttyS6)
+
+UART 6 pins (TX, RX): PI12, PI13
+
+### uart 7
+
+Activates serial port 7 (/dev/ttyS7)
+
+UART 7 pins (TX, RX): PI20, PI21
+
+### 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: PI15
+
+param_w1_pin_int_pullup (bool)
+ Enable internal pull-up for the data pin
+ Optional
+ Default: 0
+ Set to 1 to enable the pull-up
+ This option should not be used with multiple sensors or long wires -
+ please use external pull-up resistor instead
diff --git a/arch/arm/boot/dts/overlay/README.sun7i-a20-overlays b/arch/arm/boot/dts/overlay/README.sun7i-a20-overlays
new file mode 100644
index 000000000..362f87961
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/README.sun7i-a20-overlays
@@ -0,0 +1,348 @@
+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:
+
+sun7i-a20 (Allwinner A20)
+
+### Platform details:
+
+Supported pin banks: PB, PC, PD, PE, PG, PH, PI
+
+SPI controller 0 have 2 exposed hardware CS,
+other SPI controllers have only one hardware CS
+Reference: A20 Datasheet sections 6.3.5.1, 1.19.2
+
+I2C bus 0 is used for the AXP209 PMIC
+
+### Provided overlays:
+
+- analog-codec
+- can
+- i2c1
+- i2c2
+- i2c3
+- i2c4
+- i2s0
+- i2s1
+- mmc2
+- nand
+- pps-gpio
+- pwm
+- spdif-out
+- spi0
+- spi1
+- spi2
+- spi-add-cs1
+- spi-jedec-nor
+- spi-spidev
+- uart1
+- uart2
+- uart3
+- uart4
+- uart5
+- uart6
+- uart7
+- w1-gpio
+
+### Overlay details:
+
+### analog-codec
+
+Activates SoC analog codec driver that provides Line Out and Mic In
+functionality
+
+## can
+
+Activates SoC CAN controller
+
+CAN pins (TX, RX): PH20, PH21
+
+### i2c1
+
+Activates TWI/I2C bus 1
+
+I2C1 pins (SCL, SDA): PB18, PB19
+
+### i2c2
+
+Activates TWI/I2C bus 2
+
+I2C2 pins (SCL, SDA): PB20, PB21
+
+### i2c3
+
+Activates TWI/I2C bus 3
+
+I2C3 pins (SCL, SDA): PI0, PI1
+
+### i2c4
+
+Activates TWI/I2C bus 4
+
+I2C4 pins (SCL, SDA): PI2, PI3
+
+### i2s0
+
+Activates SoC I2S controller 0
+
+I2S0 pins (MCLK, BCLK, LRCK, DO0, DO1, DO2, DO3, DI): PB5, PB6, PB7, PB8, PB9, PB10, PB11, PB12
+
+### i2s1
+
+Activates SoC I2S controller 1
+
+I2S1 pins (MCLK, BCLK, LRCK, DO, DI): PA9, PA14, PA15, PA16, PA17
+
+### mmc2
+
+Activates SD/MMC controller 2. To be used on boards with second SD slot, eMMC
+or tSD instead of NAND storage.
+
+MMC2 pins: PC6, PC7, PC8, PC9, PC10, PC11
+
+Parameters:
+
+param_mmc2_cd_pin (pin)
+ SD/MMC 2 card detect pin
+ Optional
+ Default: PH0
+
+param_mmc2_non_removable (bool)
+ Option for non-removable storage options on MMC 2 controller (eMMC or tSD)
+ Optional
+ Default: 0
+ Set to 1 to use this option
+
+### nand
+
+Activates NAND controller
+
+This overlay should not be used until mainline MLC NAND support
+allows using NAND storage reliably
+
+### pps-gpio
+
+Activates pulse-per-second GPIO client
+
+Parameters:
+
+param_pps_pin (pin)
+ Pin PPS source is connected to
+ Optional
+ Default: PI15
+
+param_pps_falling_edge (bool)
+ Assert by falling edge
+ Optional
+ Default: 0
+ When set (to 1), assert is indicated by a falling edge
+ (instead of by a rising edge)
+
+### pwm
+
+Activates hardware PWM controller
+
+PWM pins (PWM0, PWM1): PB2, PI3
+
+Parameters:
+
+param_pwm_pins (string)
+ PWM pins activated with this overlay
+ Optional
+ Default: both
+ Supported values: 0, 1, both
+ If set to 0 only PWM0 can be used,
+ if set to 1 then only PWM1 can be used,
+ if set to both (default), both PWM0 and PWM1 can be used
+
+### spdif-out
+
+Activates SPDIF/Toslink audio output
+
+SPDIF pin: PB13
+
+### spi0
+
+Activates SPI controller 0 to use it with other overlays and sets up the pin multiplexing for it
+
+SPI 0 pins (MOSI, MISO, SCK, CS0, CS1): PI12, PI13, PI11, PI10, PI14
+
+### spi1
+
+Activates SPI controller 1 to use it with other overlays and sets up the pin multiplexing for it
+
+SPI 1 pins (MOSI, MISO, SCK, CS0): PI18, PI19, PI17, PI16
+
+### spi2
+
+Activates SPI controller 2 to use it with other overlays and sets up the pin multiplexing for it
+
+SPI 2 pins a (MOSI, MISO, SCK, CS0): PC21, PC22, PC20, PC19
+SPI 2 pins b (MOSI, MISO, SCK, CS0): PB16, PB17, PB15, PB14
+
+Parameters:
+
+param_spi2_bus_pins (char)
+ SPI bus 2 pinmux variant
+ Optional
+ Default: a
+ Supported values: a, b
+ Determines what pins SPI bus 2 is exposed on if SPI 2 is used
+
+### spi-add-cs1
+
+Activates SPI chip select 1 on SPI controller 0
+This overlay is required for using chip select 1 with other SPI overlays
+
+SPI 0 CS1 pin: PI14
+
+### 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, CS0, CS1): PI12, PI13, PI11, PI10, PI14
+SPI 1 pins (MOSI, MISO, SCK, CS0): PI18, PI19, PI17, PI16
+SPI 2 pins a (MOSI, MISO, SCK, CS0): PC21, PC22, PC20, PC19
+SPI 2 pins b (MOSI, MISO, SCK, CS0): PB16, PB17, PB15, PB14
+
+Parameters:
+
+param_spinor_spi_bus (int)
+ SPI bus to activate SPI NOR flash support on
+ Required
+ Supported values: 0, 1, 2
+
+param_spinor_spi_cs (int)
+ SPI chip select number for SPI NOR connected to SPI bus 0
+ Optional
+ Default: 0
+ Supported values: 0, 1
+ Using chip select 1 on SPI 0 requires using "spi-add-cs1" overlay
+
+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, CS0, CS1): PI12, PI13, PI11, PI10, PI14
+SPI 1 pins (MOSI, MISO, SCK, CS0): PI18, PI19, PI17, PI16
+SPI 2 pins a (MOSI, MISO, SCK, CS0): PC21, PC22, PC20, PC19
+SPI 2 pins b (MOSI, MISO, SCK, CS0): PB16, PB17, PB15, PB14
+
+Parameters:
+
+param_spidev_spi_bus (int)
+ SPI bus to activate mcp2515 support on
+ Required
+ Supported values: 0, 1, 2
+
+param_spidev_spi_cs (int)
+ SPI chip select number for SPIdev on SPI bus 0
+ Optional
+ Default: 0
+ Supported values: 0, 1
+ Using chip select 1 on SPI 0 requires using "spi-add-cs1" overlay
+
+param_spidev_max_freq (int)
+ Maximum SPIdev frequency
+ Optional
+ Default: 1000000
+ Range: 3000 - 100000000
+
+### uart2
+
+Activates serial port 2 (/dev/ttyS2)
+
+UART 2 pins (TX, RX, RTS, CTS): PI18, PI19, PI16, PI17
+
+Parameters:
+
+param_uart2_rtscts (bool)
+ Enable RTS and CTS pins
+ Optional
+ Default: 0
+ Set to 1 to enable CTS and RTS pins
+
+### uart3
+
+Activates serial port 3 (/dev/ttyS3)
+
+UART 3 pins a (TX, RX, RTS, CTS): PG6, PG7, PG8, PG9
+UART 3 pins b (TX, RX, RTS, CTS): PH0, PH1, PH2, PH3
+
+Parameters:
+
+param_uart3_pins (char)
+ Determines what pins UART 3 is exposed on
+ Optional
+ Default: a
+ Supported values: a, b
+
+param_uart3_rtscts (bool)
+ Enable RTS and CTS pins
+ Optional
+ Default: 0
+ Set to 1 to enable CTS and RTS pins
+
+### uart4
+
+Activates serial port 4 (/dev/ttyS4)
+
+UART 4 pins a (TX, RX): PG10, PG11
+UART 4 pins b (TX, RX): PH4, PH5
+
+Parameters:
+
+param_uart4_pins (char)
+ Determines what pins UART 4 is exposed on
+ Optional
+ Default: a
+ Supported values: a, b
+
+### uart 5
+
+Activates serial port 5 (/dev/ttyS5)
+
+UART 5 pins (TX, RX): PH6, PH7
+
+### uart 6
+
+Activates serial port 6 (/dev/ttyS6)
+
+UART 6 pins (TX, RX): PI12, PI13
+
+### uart 7
+
+Activates serial port 7 (/dev/ttyS7)
+
+UART 7 pins (TX, RX): PI20, PI21
+
+### 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: PI15
+
+param_w1_pin_int_pullup (bool)
+ Enable internal pull-up for the data pin
+ Optional
+ Default: 0
+ Set to 1 to enable the pull-up
+ This option should not be used with multiple sensors or long wires -
+ please use external pull-up resistor instead
diff --git a/arch/arm/boot/dts/overlay/README.sun8i-h3-overlays b/arch/arm/boot/dts/overlay/README.sun8i-h3-overlays
new file mode 100644
index 000000000..302973491
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/README.sun8i-h3-overlays
@@ -0,0 +1,250 @@
+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:
+
+sun8i-h3 (Allwinner H3)
+
+### Platform details:
+
+Supported pin banks: PA, PC, PD, PG
+
+Both SPI controllers have only one hardware CS pin exposed,
+adding fixed software (GPIO) chip selects is possible with a separate overlay
+
+### Provided overlays:
+
+- analog-codec
+- cir
+- i2c0
+- i2c1
+- i2c2
+- pps-gpio
+- pwm
+- spdif-out
+- spi-add-cs1
+- spi-jedec-nor
+- spi-spidev
+- uart1
+- uart2
+- uart3
+- usbhost0
+- usbhost1
+- usbhost2
+- usbhost3
+- w1-gpio
+
+### Overlay details:
+
+### analog-codec
+
+Activates SoC analog codec driver that provides Line Out and Mic In
+functionality
+
+### cir
+
+Activates CIR (Infrared remote) receiver
+
+CIR pin: PL11
+
+### i2c0
+
+Activates TWI/I2C bus 0
+
+I2C0 pins (SCL, SDA): PA11, PA12
+
+### i2c1
+
+Activates TWI/I2C bus 1
+
+I2C1 pins (SCL, SDA): PA18, PA19
+
+### i2c2
+
+Activates TWI/I2C bus 2
+
+I2C2 pins (SCL, SDA): PE12, PE13
+
+On most board this bus is wired to Camera (CSI) socket
+
+### pps-gpio
+
+Activates pulse-per-second GPIO client
+
+Parameters:
+
+param_pps_pin (pin)
+ Pin PPS source is connected to
+ Optional
+ Default: PD14
+
+param_pps_falling_edge (bool)
+ Assert by falling edge
+ Optional
+ Default: 0
+ When set (to 1), assert is indicated by a falling edge
+ (instead of by a rising edge)
+
+### pwm
+
+Activates hardware PWM controller
+
+PWM pin: PA5
+
+Pin PA5 is used as UART0 RX by default, so if this overlay is activated,
+UART0 and kernel console on ttyS0 will be disabled
+
+### spdif-out
+
+Activates SPDIF/Toslink audio output
+
+SPDIF pin: PA17
+
+### spi-add-cs1
+
+Adds support for using SPI chip select 1 with GPIO for both SPI controllers
+Respective GPIO will be claimed only if controller is enabled by another
+overlay
+This overlay is required for using chip select 1 with other SPI overlays
+Due to the u-boot limitations CS1 pin can't be customized by a parameter, but
+it can be changed by using an edited copy of this overlay
+A total of 4 chip selects can be used with custom overlays (1 HW + 3 GPIO)
+
+SPI 0 pins (CS1): PA21
+SPI 1 pins (CS1): PA10
+
+### 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): PC0, PC1, PC2, PC3
+SPI 1 pins (MOSI, MISO, SCK, CS): PA15, PA16, PA14, PA13
+
+Parameters:
+
+param_spinor_spi_bus (int)
+ SPI bus to activate SPI NOR flash support on
+ Required
+ Supported values: 0, 1
+
+param_spinor_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_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): PC0, PC1, PC2, PC3
+SPI 1 pins (MOSI, MISO, SCK, CS): PA15, PA16, PA14, PA13
+
+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
+
+### uart1
+
+Activates serial port 1 (/dev/ttyS1)
+
+UART 1 pins (TX, RX, RTS, CTS): PG6, PG7, PG8, PG9
+
+Parameters:
+
+param_uart1_rtscts (bool)
+ Enable RTS and CTS pins
+ Optional
+ Default: 0
+ Set to 1 to enable
+
+### uart2
+
+Activates serial port 2 (/dev/ttyS2)
+
+UART 2 pins (TX, RX, RTS, CTS): PA0, PA1, PA2, PA3
+
+Parameters:
+
+param_uart2_rtscts (bool)
+ Enable RTS and CTS pins
+ Optional
+ Default: 0
+ Set to 1 to enable CTS and RTS pins
+
+### uart3
+
+Activates serial port 3 (/dev/ttyS3)
+
+UART 3 pins (TX, RX, RTS, CTS): PA13, PA14, PA15, PA16
+
+Parameters:
+
+param_uart3_rtscts (bool)
+ Enable RTS and CTS pins
+ Optional
+ Default: 0
+ Set to 1 to enable CTS and RTS pins
+
+### usbhost0
+
+Activates USB host controller 0
+
+### usbhost1
+
+Activates USB host controller 1
+
+### usbhost2
+
+Activates USB host controller 2
+
+### usbhost3
+
+Activates USB host controller 3
+
+### 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
+
+param_w1_pin_int_pullup (bool)
+ Enable internal pull-up for the data pin
+ Optional
+ Default: 0
+ Set to 1 to enable the pull-up
+ This option should not be used with multiple devices, parasite power setup
+ or long wires - please use external pull-up resistor instead
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-analog-codec.dts b/arch/arm/boot/dts/overlay/sun4i-a10-analog-codec.dts
new file mode 100644
index 000000000..9254e22e0
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-analog-codec.dts
@@ -0,0 +1,13 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target = <&codec>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-can.dts b/arch/arm/boot/dts/overlay/sun4i-a10-can.dts
new file mode 100644
index 000000000..4be3a38b9
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-can.dts
@@ -0,0 +1,15 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target = <&can0>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&can0_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-fixup.scr-cmd b/arch/arm/boot/dts/overlay/sun4i-a10-fixup.scr-cmd
new file mode 100644
index 000000000..8dd3eeb85
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-fixup.scr-cmd
@@ -0,0 +1,124 @@
+# overlays fixup script
+# implements (or rather substitutes) overlay arguments functionality
+# using u-boot scripting, environment variables and "fdt" command
+
+# setexpr test_var ${tmp_bank} - A
+# works only for hex numbers (A-F)
+
+setenv decompose_pin 'setexpr tmp_bank sub "P(B|C|D|E|G|H|I)\\d+" "\\1";
+setexpr tmp_pin sub "P\\S(\\d+)" "\\1";
+test "${tmp_bank}" = "B" && setenv tmp_bank 1;
+test "${tmp_bank}" = "C" && setenv tmp_bank 2;
+test "${tmp_bank}" = "D" && setenv tmp_bank 3;
+test "${tmp_bank}" = "E" && setenv tmp_bank 4;
+test "${tmp_bank}" = "G" && setenv tmp_bank 6;
+test "${tmp_bank}" = "H" && setenv tmp_bank 7;
+test "${tmp_bank}" = "I" && setenv tmp_bank 8'
+
+if test -n "${param_spinor_spi_bus}"; then
+ test "${param_spinor_spi_bus}" = "0" && setenv tmp_spi_path "spi@01c05000"
+ test "${param_spinor_spi_bus}" = "1" && setenv tmp_spi_path "spi@01c06000"
+ test "${param_spinor_spi_bus}" = "2" && setenv tmp_spi_path "spi@01c17000"
+ fdt set /soc@01c00000/${tmp_spi_path} status "okay"
+ fdt set /soc@01c00000/${tmp_spi_path}/spiflash status "okay"
+ if test -n "${param_spinor_max_freq}"; then
+ fdt set /soc@01c00000/${tmp_spi_path}/spiflash spi-max-frequency "<${param_spinor_max_freq}>"
+ fi
+ env delete tmp_spi_path
+fi
+
+if test -n "${param_spidev_spi_bus}"; then
+ test "${param_spidev_spi_bus}" = "0" && setenv tmp_spi_path "spi@01c05000"
+ test "${param_spidev_spi_bus}" = "1" && setenv tmp_spi_path "spi@01c06000"
+ test "${param_spidev_spi_bus}" = "2" && setenv tmp_spi_path "spi@01c17000"
+ fdt set /soc@01c00000/${tmp_spi_path} status "okay"
+ fdt set /soc@01c00000/${tmp_spi_path}/spidev status "okay"
+ if test -n "${param_spidev_max_freq}"; then
+ fdt set /soc@01c00000/${tmp_spi_path}/spidev spi-max-frequency "<${param_spidev_max_freq}>"
+ fi
+ env delete tmp_spi_path
+fi
+
+if test "${param_spi2_bus_pins}" = "b"; then
+ fdt get value tmp_phandle1 /soc@01c00000/pinctrl@01c20800/spi2@1 phandle
+ fdt get value tmp_phandle2 /soc@01c00000/pinctrl@01c20800/spi2_cs0@1 phandle
+ fdt set /soc@01c00000/spi@01c17000 pinctrl-0 "<${tmp_phandle1}>"
+ fdt set /soc@01c00000/spi@01c17000 pinctrl-1 "<${tmp_phandle2}>"
+ env delete tmp_phandle1 tmp_phandle2
+fi
+
+if test -n "${param_pps_pin}"; then
+ setenv tmp_bank "${param_pps_pin}"
+ setenv tmp_pin "${param_pps_pin}"
+ run decompose_pin
+ fdt set /soc@01c00000/pinctrl@01c20800/pps_pins pins "${param_pps_pin}"
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800 phandle
+ fdt set /pps@0 gpios "<${tmp_phandle} ${tmp_bank} ${tmp_pin} 0>"
+ env delete tmp_pin tmp_bank tmp_phandle
+fi
+
+if test "${param_pps_falling_edge}" = "1"; then
+ fdt set /pps@0 assert-falling-edge
+fi
+
+if test "${param_pwm_pins}" = "0"; then
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800/pwm0@0
+ fdt set /soc@01c00000/pwm@01c20e00 pinctrl-0 "<${tmp_phandle}>"
+ env delete tmp_phandle
+fi
+
+if test "${param_pwm_pins}" = "1"; then
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800/pwm1@0
+ fdt set /soc@01c00000/pwm@01c20e00 pinctrl-0 "<${tmp_phandle}>"
+ env delete tmp_phandle
+fi
+
+if test -n "${param_w1_pin}"; then
+ setenv tmp_bank "${param_w1_pin}"
+ setenv tmp_pin "${param_w1_pin}"
+ run decompose_pin
+ fdt set /soc@01c00000/pinctrl@01c20800/w1_pins pins "${param_w1_pin}"
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800 phandle
+ fdt set /onewire@0 gpios "<${tmp_phandle} ${tmp_bank} ${tmp_pin} 0>"
+ env delete tmp_pin tmp_bank tmp_phandle
+fi
+
+if test "${param_w1_pin_int_pullup}" = "1"; then
+ fdt set /soc@01c00000/pinctrl@01c20800/w1_pins bias-pull-up
+fi
+
+if test "${param_uart2_rtscts}" = "1"; then
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800/uart2@0 phandle
+ fdt set /soc@01c00000/serial@01c28800 pinctrl-0 "<${tmp_phandle}>"
+ env delete tmp_phandle
+fi
+
+if test "${param_uart3_pins}" = "b"; then
+ if test "${param_uart3_rtscts}" = "1"; then
+ fdt get value tmp_phandle1 /soc@01c00000/pinctrl@01c20800/uart3_pins_b phandle
+ fdt get value tmp_phandle2 /soc@01c00000/pinctrl@01c20800/uart3_pins_b_rts_cts phandle
+ fdt set /soc@01c00000/serial@01c28c00 pinctrl-names "default" "default"
+ fdt set /soc@01c00000/serial@01c28c00 pinctrl-0 "<${tmp_phandle1}>"
+ fdt set /soc@01c00000/serial@01c28c00 pinctrl-1 "<${tmp_phandle2}>"
+ env delete tmp_phandle1 tmp_phandle2
+ else
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800/uart3_pins_b phandle
+ fdt set /soc@01c00000/serial@01c28c00 pinctrl-0 "<${tmp_phandle}>"
+ env delete tmp_phandle
+ fi
+else
+ if test "${param_uart3_rtscts}" = "1"; then
+ fdt get value tmp_phandle1 /soc@01c00000/pinctrl@01c20800/uart3_pins_a phandle
+ fdt get value tmp_phandle2 /soc@01c00000/pinctrl@01c20800/uart3_pins_a_rts_cts phandle
+ fdt set /soc@01c00000/serial@01c28c00 pinctrl-names "default" "default"
+ fdt set /soc@01c00000/serial@01c28c00 pinctrl-0 "<${tmp_phandle1}>"
+ fdt set /soc@01c00000/serial@01c28c00 pinctrl-1 "<${tmp_phandle2}>"
+ env delete tmp_phandle1 tmp_phandle2
+ fi
+fi
+
+if test "${param_uart4_pins}" = "b"; then
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800/uart4@1 phandle
+ fdt set /soc@01c00000/serial@01c29000 pinctrl-0 "<${tmp_phandle}>"
+ env delete tmp_phandle
+fi
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-i2c1.dts b/arch/arm/boot/dts/overlay/sun4i-a10-i2c1.dts
new file mode 100644
index 000000000..44a7ce9be
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-i2c1.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ i2c1 = "/soc@01c00000/i2c@01c2b000";
+ };
+ };
+
+ fragment@1 {
+ target = <&i2c1>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-i2c2.dts b/arch/arm/boot/dts/overlay/sun4i-a10-i2c2.dts
new file mode 100644
index 000000000..ab3c00fa0
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-i2c2.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ i2c2 = "/soc@01c00000/i2c@01c2b400";
+ };
+ };
+
+ fragment@1 {
+ target = <&i2c2>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-nand.dts b/arch/arm/boot/dts/overlay/sun4i-a10-nand.dts
new file mode 100644
index 000000000..f0d4c2f34
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-nand.dts
@@ -0,0 +1,103 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target = <&pio>;
+ __overlay__ {
+ nand_pins_a: nand_pins@0 {
+ pins = "PC0", "PC1", "PC2",
+ "PC5", "PC8", "PC9", "PC10",
+ "PC11", "PC12", "PC13", "PC14",
+ "PC15", "PC16";
+ function = "nand0";
+ };
+
+ nand_cs0_pins_a: nand_cs@0 {
+ pins = "PC4";
+ function = "nand0";
+ };
+
+ nand_cs1_pins_a: nand_cs@1 {
+ pins = "PC3";
+ function = "nand0";
+ };
+
+ nand_cs2_pins_a: nand_cs@2 {
+ pins = "PC17";
+ function = "nand0";
+ };
+
+ nand_cs3_pins_a: nand_cs@3 {
+ pins = "PC18";
+ function = "nand0";
+ };
+
+ nand_rb0_pins_a: nand_rb@0 {
+ pins = "PC6";
+ function = "nand0";
+ };
+
+ nand_rb1_pins_a: nand_rb@1 {
+ pins = "PC7";
+ function = "nand0";
+ };
+ };
+ };
+
+ fragment@1 {
+ target = <&nfc>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&nand_pins_a>, <&nand_cs0_pins_a>, <&nand_rb0_pins_a>;
+ status = "okay";
+
+ nand@0 {
+ reg = <0>;
+ allwinner,rb = <0>;
+ nand-ecc-mode = "hw";
+ nand-on-flash-bbt;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ partition@0 {
+ label = "SPL";
+ reg = <0x0 0x0 0x0 0x400000>;
+ };
+
+ partition@400000 {
+ label = "SPL.backup";
+ reg = <0x0 0x400000 0x0 0x400000>;
+ };
+
+ partition@800000 {
+ label = "U-Boot";
+ reg = <0x0 0x800000 0x0 0x400000>;
+ };
+
+ partition@c00000 {
+ label = "U-Boot.backup";
+ reg = <0x0 0xc00000 0x0 0x400000>;
+ };
+
+ partition@1000000 {
+ label = "env";
+ reg = <0x0 0x1000000 0x0 0x400000>;
+ };
+
+ partition@1400000 {
+ label = "rootfs";
+ reg = <0x0 0xa00000 0x01 0xff000000>;
+ };
+ };
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-pps-gpio.dts b/arch/arm/boot/dts/overlay/sun4i-a10-pps-gpio.dts
new file mode 100644
index 000000000..6031fc53e
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-pps-gpio.dts
@@ -0,0 +1,29 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target = <&pio>;
+ __overlay__ {
+ pps_pins: pps_pins {
+ pins = "PI15";
+ function = "gpio_in";
+ };
+ };
+ };
+
+ fragment@1 {
+ target-path = "/";
+ __overlay__ {
+ pps@0 {
+ compatible = "pps-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pps_pins>;
+ gpios = <&pio 8 15 0>; /* PI15 */
+ status = "okay";
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-pwm.dts b/arch/arm/boot/dts/overlay/sun4i-a10-pwm.dts
new file mode 100644
index 000000000..1927fc528
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-pwm.dts
@@ -0,0 +1,15 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target = <&pwm>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0_pins_a>, <&pwm1_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-spdif-out.dts b/arch/arm/boot/dts/overlay/sun4i-a10-spdif-out.dts
new file mode 100644
index 000000000..5811e4746
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-spdif-out.dts
@@ -0,0 +1,38 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target = <&spdif>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&spdif_tx_pins_a>;
+ status = "okay";
+ };
+ };
+
+ fragment@1 {
+ target-path = "/";
+ __overlay__ {
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "On-board SPDIF";
+
+ simple-audio-card,cpu {
+ sound-dai = <&spdif>;
+ };
+
+ simple-audio-card,codec {
+ sound-dai = <&spdif_out>;
+ };
+ };
+
+ spdif_out: spdif-out {
+ #sound-dai-cells = <0>;
+ compatible = "linux,spdif-dit";
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-spi-jedec-nor.dts b/arch/arm/boot/dts/overlay/sun4i-a10-spi-jedec-nor.dts
new file mode 100644
index 000000000..9cf640f33
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-spi-jedec-nor.dts
@@ -0,0 +1,57 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ spi0 = "/soc@01c00000/spi@01c05000";
+ spi1 = "/soc@01c00000/spi@01c06000";
+ spi2 = "/soc@01c00000/spi@01c17000";
+ };
+ };
+
+ fragment@1 {
+ target = <&spi0>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spiflash {
+ compatible = "jedec,spi-nor";
+ status = "disabled";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&spi1>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spiflash {
+ compatible = "jedec,spi-nor";
+ status = "disabled";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
+
+ fragment@3 {
+ target = <&spi2>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spiflash {
+ compatible = "jedec,spi-nor";
+ status = "disabled";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-spi-spidev.dts b/arch/arm/boot/dts/overlay/sun4i-a10-spi-spidev.dts
new file mode 100644
index 000000000..f603d6dc8
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-spi-spidev.dts
@@ -0,0 +1,57 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ spi0 = "/soc@01c00000/spi@01c05000";
+ spi1 = "/soc@01c00000/spi@01c06000";
+ spi2 = "/soc@01c00000/spi@01c17000";
+ };
+ };
+
+ fragment@1 {
+ target = <&spi0>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spidev {
+ compatible = "spidev";
+ status = "disabled";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&spi1>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spidev {
+ compatible = "spidev";
+ status = "disabled";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
+
+ fragment@3 {
+ target = <&spi2>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spidev {
+ compatible = "spidev";
+ status = "disabled";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-spi0.dts b/arch/arm/boot/dts/overlay/sun4i-a10-spi0.dts
new file mode 100644
index 000000000..04442626a
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-spi0.dts
@@ -0,0 +1,23 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ spi0 = "/soc@01c00000/spi@01c05000";
+ };
+ };
+
+ fragment@1 {
+ target = <&spi0>;
+ __overlay__ {
+ status = "okay";
+ pinctrl-names = "default", "default";
+ pinctrl-0 = <&spi0_pins_a>;
+ pinctrl-1 = <&spi0_cs0_pins_a>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-spi1.dts b/arch/arm/boot/dts/overlay/sun4i-a10-spi1.dts
new file mode 100644
index 000000000..3c3fcb864
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-spi1.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ spi1 = "/soc@01c00000/spi@01c06000";
+ };
+ };
+
+ fragment@1 {
+ target = <&spi1>;
+ __overlay__ {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi1_pins_a>, <&spi1_cs0_pins_a>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-spi2.dts b/arch/arm/boot/dts/overlay/sun4i-a10-spi2.dts
new file mode 100644
index 000000000..b38e04c35
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-spi2.dts
@@ -0,0 +1,23 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ spi2 = "/soc@01c00000/spi@01c17000";
+ };
+ };
+
+ fragment@1 {
+ target = <&spi2>;
+ __overlay__ {
+ status = "okay";
+ pinctrl-names = "default", "default";
+ pinctrl-0 = <&spi2_pins_a>;
+ pinctrl-1 = <&spi2_cs0_pins_a>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-uart2.dts b/arch/arm/boot/dts/overlay/sun4i-a10-uart2.dts
new file mode 100644
index 000000000..41ce3e670
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-uart2.dts
@@ -0,0 +1,37 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial2 = "/soc@01c00000/serial@01c28800";
+ };
+ };
+
+ fragment@1 {
+ target = <&pio>;
+ __overlay__ {
+ uart2_pins_a: uart2@0 {
+ pins = "PI16", "PI17", "PI18", "PI19";
+ function = "uart2";
+ };
+
+ uart2_pins_a_2: uart2@1 {
+ pins = "PI18", "PI19";
+ function = "uart2";
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&uart2>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_pins_a_2>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-uart3.dts b/arch/arm/boot/dts/overlay/sun4i-a10-uart3.dts
new file mode 100644
index 000000000..0b70a65eb
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-uart3.dts
@@ -0,0 +1,47 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial3 = "/soc@01c00000/serial@01c28c00";
+ };
+ };
+
+ fragment@1 {
+ target = <&pio>;
+ __overlay__ {
+ uart3_pins_a: uart3@0 {
+ pins = "PG6", "PG7";
+ function = "uart3";
+ };
+
+ uart3_pins_a_rts_cts: uart3@1 {
+ pins = "PG8", "PG9";
+ function = "uart3";
+ };
+
+ uart3_pins_b: uart3@2 {
+ pins = "PH0", "PH1";
+ function = "uart3";
+ };
+
+ uart3_pins_b_rts_cts: uart3@3 {
+ pins = "PH2", "PH3";
+ function = "uart3";
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&uart3>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-uart4.dts b/arch/arm/boot/dts/overlay/sun4i-a10-uart4.dts
new file mode 100644
index 000000000..0677c634d
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-uart4.dts
@@ -0,0 +1,37 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial4 = "/soc@01c00000/serial@01c29000";
+ };
+ };
+
+ fragment@1 {
+ target = <&pio>;
+ __overlay__ {
+ uart4_pins_a: uart4@0 {
+ pins = "PG10", "PG11";
+ function = "uart4";
+ };
+
+ uart4_pins_b: uart4@1 {
+ pins = "PH4", "PH5";
+ function = "uart4";
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&uart4>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart4_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-uart5.dts b/arch/arm/boot/dts/overlay/sun4i-a10-uart5.dts
new file mode 100644
index 000000000..0a3ed9b5f
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-uart5.dts
@@ -0,0 +1,32 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial5 = "/soc@01c00000/serial@01c29400";
+ };
+ };
+
+ fragment@1 {
+ target = <&pio>;
+ __overlay__ {
+ uart5_pins_a: uart5@0 {
+ pins = "PH6", "PH7";
+ function = "uart5";
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&uart5>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart5_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-uart6.dts b/arch/arm/boot/dts/overlay/sun4i-a10-uart6.dts
new file mode 100644
index 000000000..f58b4112a
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-uart6.dts
@@ -0,0 +1,32 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial6 = "/soc@01c00000/serial@01c29800";
+ };
+ };
+
+ fragment@1 {
+ target = <&pio>;
+ __overlay__ {
+ uart6_pins_a: uart6@0 {
+ pins = "PI12", "PI13";
+ function = "uart6";
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&uart6>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart6_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-uart7.dts b/arch/arm/boot/dts/overlay/sun4i-a10-uart7.dts
new file mode 100644
index 000000000..65d8c6885
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-uart7.dts
@@ -0,0 +1,32 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial7 = "/soc@01c00000/serial@01c29c00";
+ };
+ };
+
+ fragment@1 {
+ target = <&pio>;
+ __overlay__ {
+ uart7_pins_a: uart7@0 {
+ pins = "PI20", "PI21";
+ function = "uart7";
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&uart7>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart7_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun4i-a10-w1-gpio.dts b/arch/arm/boot/dts/overlay/sun4i-a10-w1-gpio.dts
new file mode 100644
index 000000000..41da08c60
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun4i-a10-w1-gpio.dts
@@ -0,0 +1,29 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun4i-a10";
+
+ fragment@0 {
+ target = <&pio>;
+ __overlay__ {
+ w1_pins: w1_pins {
+ pins = "PI15";
+ function = "gpio_in";
+ };
+ };
+ };
+
+ fragment@1 {
+ target-path = "/";
+ __overlay__ {
+ onewire@0 {
+ compatible = "w1-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&w1_pins>;
+ gpios = <&pio 8 15 0>; /* PI15 */
+ status = "okay";
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-analog-codec.dts b/arch/arm/boot/dts/overlay/sun7i-a20-analog-codec.dts
new file mode 100644
index 000000000..e1a70c510
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-analog-codec.dts
@@ -0,0 +1,13 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target = <&codec>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-can.dts b/arch/arm/boot/dts/overlay/sun7i-a20-can.dts
new file mode 100644
index 000000000..65aebcd41
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-can.dts
@@ -0,0 +1,15 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target = <&can0>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&can0_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-fixup.scr-cmd b/arch/arm/boot/dts/overlay/sun7i-a20-fixup.scr-cmd
new file mode 100644
index 000000000..5a320b836
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-fixup.scr-cmd
@@ -0,0 +1,143 @@
+# overlays fixup script
+# implements (or rather substitutes) overlay arguments functionality
+# using u-boot scripting, environment variables and "fdt" command
+
+# setexpr test_var ${tmp_bank} - A
+# works only for hex numbers (A-F)
+
+setenv decompose_pin 'setexpr tmp_bank sub "P(B|C|D|E|G|H|I)\\d+" "\\1";
+setexpr tmp_pin sub "P\\S(\\d+)" "\\1";
+test "${tmp_bank}" = "B" && setenv tmp_bank 1;
+test "${tmp_bank}" = "C" && setenv tmp_bank 2;
+test "${tmp_bank}" = "D" && setenv tmp_bank 3;
+test "${tmp_bank}" = "E" && setenv tmp_bank 4;
+test "${tmp_bank}" = "G" && setenv tmp_bank 6;
+test "${tmp_bank}" = "H" && setenv tmp_bank 7;
+test "${tmp_bank}" = "I" && setenv tmp_bank 8'
+
+if test -n "${param_spinor_spi_bus}"; then
+ test "${param_spinor_spi_bus}" = "0" && setenv tmp_spi_path "spi@01c05000"
+ test "${param_spinor_spi_bus}" = "1" && setenv tmp_spi_path "spi@01c06000"
+ test "${param_spinor_spi_bus}" = "2" && setenv tmp_spi_path "spi@01c17000"
+ fdt set /soc@01c00000/${tmp_spi_path} status "okay"
+ fdt set /soc@01c00000/${tmp_spi_path}/spiflash status "okay"
+ if test -n "${param_spinor_max_freq}"; then
+ fdt set /soc@01c00000/${tmp_spi_path}/spiflash spi-max-frequency "<${param_spinor_max_freq}>"
+ fi
+ if test "${param_spinor_spi_bus}" = "0" && test "${param_spinor_spi_cs}" = "1"; then
+ fdt set /soc@01c00000/${tmp_spi_path}/spiflash 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@01c05000"
+ test "${param_spidev_spi_bus}" = "1" && setenv tmp_spi_path "spi@01c06000"
+ test "${param_spidev_spi_bus}" = "2" && setenv tmp_spi_path "spi@01c17000"
+ fdt set /soc@01c00000/${tmp_spi_path} status "okay"
+ fdt set /soc@01c00000/${tmp_spi_path}/spidev status "okay"
+ if test -n "${param_spidev_max_freq}"; then
+ fdt set /soc@01c00000/${tmp_spi_path}/spidev spi-max-frequency "<${param_spidev_max_freq}>"
+ fi
+ if test "${param_spidev_spi_bus}" = "0" && test "${param_spidev_spi_cs}" = "1"; then
+ fdt set /soc@01c00000/${tmp_spi_path}/spidev reg "<1>"
+ fi
+ env delete tmp_spi_path
+fi
+
+if test "${param_spi2_bus_pins}" = "b"; then
+ fdt get value tmp_phandle1 /soc@01c00000/pinctrl@01c20800/spi2@1 phandle
+ fdt get value tmp_phandle2 /soc@01c00000/pinctrl@01c20800/spi2_cs0@1 phandle
+ fdt set /soc@01c00000/spi@01c17000 pinctrl-0 "<${tmp_phandle1}>"
+ fdt set /soc@01c00000/spi@01c17000 pinctrl-1 "<${tmp_phandle2}>"
+ env delete tmp_phandle1 tmp_phandle2
+fi
+
+if test -n "${param_pps_pin}"; then
+ setenv tmp_bank "${param_pps_pin}"
+ setenv tmp_pin "${param_pps_pin}"
+ run decompose_pin
+ fdt set /soc@01c00000/pinctrl@01c20800/pps_pins pins "${param_pps_pin}"
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800 phandle
+ fdt set /pps@0 gpios "<${tmp_phandle} ${tmp_bank} ${tmp_pin} 0>"
+ env delete tmp_pin tmp_bank tmp_phandle
+fi
+
+if test "${param_pps_falling_edge}" = "1"; then
+ fdt set /pps@0 assert-falling-edge
+fi
+
+if test "${param_pwm_pins}" = "0"; then
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800/pwm0@0
+ fdt set /soc@01c00000/pwm@01c20e00 pinctrl-0 "<${tmp_phandle}>"
+ env delete tmp_phandle
+fi
+
+if test "${param_pwm_pins}" = "1"; then
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800/pwm1@0
+ fdt set /soc@01c00000/pwm@01c20e00 pinctrl-0 "<${tmp_phandle}>"
+ env delete tmp_phandle
+fi
+
+if test -n "${param_w1_pin}"; then
+ setenv tmp_bank "${param_w1_pin}"
+ setenv tmp_pin "${param_w1_pin}"
+ run decompose_pin
+ fdt set /soc@01c00000/pinctrl@01c20800/w1_pins pins "${param_w1_pin}"
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800 phandle
+ fdt set /onewire@0 gpios "<${tmp_phandle} ${tmp_bank} ${tmp_pin} 0>"
+ env delete tmp_pin tmp_bank tmp_phandle
+fi
+
+if test -n "${param_mmc2_cd_pin}"; then
+ setenv tmp_bank "${param_mmc2_cd_pin}"
+ setenv tmp_pin "${param_mmc2_cd_pin}"
+ run decompose_pin
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800 phandle
+ fdt set /soc@01c00000/mmc@01c11000 cd-gpios "<${tmp_phandle} ${tmp_bank} ${tmp_pin} 1>"
+fi
+
+if test "${param_mmc2_non_removable}" = "1"; then
+ fdt rm /soc@01c00000/mmc@01c11000 cd-gpios
+ fdt set /soc@01c00000/mmc@01c11000 non-removable
+fi
+
+if test "${param_w1_pin_int_pullup}" = "1"; then
+ fdt set /soc@01c00000/pinctrl@01c20800/w1_pins bias-pull-up
+fi
+
+if test "${param_uart2_rtscts}" = "1"; then
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800/uart2@0 phandle
+ fdt set /soc@01c00000/serial@01c28800 pinctrl-0 "<${tmp_phandle}>"
+ env delete tmp_phandle
+fi
+
+if test "${param_uart3_pins}" = "b"; then
+ if test "${param_uart3_rtscts}" = "1"; then
+ fdt get value tmp_phandle1 /soc@01c00000/pinctrl@01c20800/uart3_pins_b phandle
+ fdt get value tmp_phandle2 /soc@01c00000/pinctrl@01c20800/uart3_pins_b_rts_cts phandle
+ fdt set /soc@01c00000/serial@01c28c00 pinctrl-names "default" "default"
+ fdt set /soc@01c00000/serial@01c28c00 pinctrl-0 "<${tmp_phandle1}>"
+ fdt set /soc@01c00000/serial@01c28c00 pinctrl-1 "<${tmp_phandle2}>"
+ env delete tmp_phandle1 tmp_phandle2
+ else
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800/uart3_pins_b phandle
+ fdt set /soc@01c00000/serial@01c28c00 pinctrl-0 "<${tmp_phandle}>"
+ env delete tmp_phandle
+ fi
+else
+ if test "${param_uart3_rtscts}" = "1"; then
+ fdt get value tmp_phandle1 /soc@01c00000/pinctrl@01c20800/uart3_pins_a_2 phandle
+ fdt get value tmp_phandle2 /soc@01c00000/pinctrl@01c20800/uart3_pins_a_rts_cts phandle
+ fdt set /soc@01c00000/serial@01c28c00 pinctrl-names "default" "default"
+ fdt set /soc@01c00000/serial@01c28c00 pinctrl-0 "<${tmp_phandle1}>"
+ fdt set /soc@01c00000/serial@01c28c00 pinctrl-1 "<${tmp_phandle2}>"
+ env delete tmp_phandle1 tmp_phandle2
+ fi
+fi
+
+if test "${param_uart4_pins}" = "b"; then
+ fdt get value tmp_phandle /soc@01c00000/pinctrl@01c20800/uart4@1 phandle
+ fdt set /soc@01c00000/serial@01c29000 pinctrl-0 "<${tmp_phandle}>"
+ env delete tmp_phandle
+fi
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-i2c1.dts b/arch/arm/boot/dts/overlay/sun7i-a20-i2c1.dts
new file mode 100644
index 000000000..d1146ee4c
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-i2c1.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ i2c1 = "/soc@01c00000/i2c@01c2b000";
+ };
+ };
+
+ fragment@1 {
+ target = <&i2c1>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-i2c2.dts b/arch/arm/boot/dts/overlay/sun7i-a20-i2c2.dts
new file mode 100644
index 000000000..e6b32de59
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-i2c2.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ i2c2 = "/soc@01c00000/i2c@01c2b400";
+ };
+ };
+
+ fragment@1 {
+ target = <&i2c2>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-i2c3.dts b/arch/arm/boot/dts/overlay/sun7i-a20-i2c3.dts
new file mode 100644
index 000000000..5273d06c9
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-i2c3.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ i2c3 = "/soc@01c00000/i2c@01c2b800";
+ };
+ };
+
+ fragment@1 {
+ target = <&i2c3>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c3_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-i2c4.dts b/arch/arm/boot/dts/overlay/sun7i-a20-i2c4.dts
new file mode 100644
index 000000000..113a220bc
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-i2c4.dts
@@ -0,0 +1,32 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ i2c4 = "/soc@01c00000/i2c@01c2c000";
+ };
+ };
+
+ fragment@1 {
+ target = <&pio>;
+ __overlay__ {
+ i2c4_pins_a: i2c4@0 {
+ pins = "PI2", "PI3";
+ function = "i2c4";
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&i2c4>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c4_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-i2s0.dts b/arch/arm/boot/dts/overlay/sun7i-a20-i2s0.dts
new file mode 100644
index 000000000..1a19a2417
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-i2s0.dts
@@ -0,0 +1,25 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target = <&pio>;
+ __overlay__ {
+ i2s0_pins: i2s0 {
+ pins = "PB5", "PB6", "PB7", "PB8", "PB9", "PB10", "PB11", "PB12";
+ function = "i2s0";
+ };
+ };
+ };
+
+ fragment@1 {
+ target = <&i2s0>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2s0_pins>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-i2s1.dts b/arch/arm/boot/dts/overlay/sun7i-a20-i2s1.dts
new file mode 100644
index 000000000..e6f0a22b7
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-i2s1.dts
@@ -0,0 +1,25 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target = <&pio>;
+ __overlay__ {
+ i2s1_pins: i2s1 {
+ pins = "PA9", "PA14", "PA15", "PA16", "PA17";
+ function = "i2s1";
+ };
+ };
+ };
+
+ fragment@1 {
+ target = <&i2s1>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2s1_pins>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-mmc2.dts b/arch/arm/boot/dts/overlay/sun7i-a20-mmc2.dts
new file mode 100644
index 000000000..f1ddbaa2c
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-mmc2.dts
@@ -0,0 +1,18 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target = <&mmc2>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc2_pins_a>;
+ vmmc-supply = <®_vcc3v3>;
+ bus-width = <4>;
+ cd-gpios = <&pio 7 0 1>; /* PH0, active low */
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-nand.dts b/arch/arm/boot/dts/overlay/sun7i-a20-nand.dts
new file mode 100644
index 000000000..ffa49cc69
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-nand.dts
@@ -0,0 +1,103 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target = <&pio>;
+ __overlay__ {
+ nand_pins_a: nand_pins@0 {
+ pins = "PC0", "PC1", "PC2",
+ "PC5", "PC8", "PC9", "PC10",
+ "PC11", "PC12", "PC13", "PC14",
+ "PC15", "PC16";
+ function = "nand0";
+ };
+
+ nand_cs0_pins_a: nand_cs@0 {
+ pins = "PC4";
+ function = "nand0";
+ };
+
+ nand_cs1_pins_a: nand_cs@1 {
+ pins = "PC3";
+ function = "nand0";
+ };
+
+ nand_cs2_pins_a: nand_cs@2 {
+ pins = "PC17";
+ function = "nand0";
+ };
+
+ nand_cs3_pins_a: nand_cs@3 {
+ pins = "PC18";
+ function = "nand0";
+ };
+
+ nand_rb0_pins_a: nand_rb@0 {
+ pins = "PC6";
+ function = "nand0";
+ };
+
+ nand_rb1_pins_a: nand_rb@1 {
+ pins = "PC7";
+ function = "nand0";
+ };
+ };
+ };
+
+ fragment@1 {
+ target = <&nfc>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&nand_pins_a>, <&nand_cs0_pins_a>, <&nand_rb0_pins_a>;
+ status = "okay";
+
+ nand@0 {
+ reg = <0>;
+ allwinner,rb = <0>;
+ nand-ecc-mode = "hw";
+ nand-on-flash-bbt;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ partition@0 {
+ label = "SPL";
+ reg = <0x0 0x0 0x0 0x400000>;
+ };
+
+ partition@400000 {
+ label = "SPL.backup";
+ reg = <0x0 0x400000 0x0 0x400000>;
+ };
+
+ partition@800000 {
+ label = "U-Boot";
+ reg = <0x0 0x800000 0x0 0x400000>;
+ };
+
+ partition@c00000 {
+ label = "U-Boot.backup";
+ reg = <0x0 0xc00000 0x0 0x400000>;
+ };
+
+ partition@1000000 {
+ label = "env";
+ reg = <0x0 0x1000000 0x0 0x400000>;
+ };
+
+ partition@1400000 {
+ label = "rootfs";
+ reg = <0x0 0xa00000 0x01 0xff000000>;
+ };
+ };
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-pps-gpio.dts b/arch/arm/boot/dts/overlay/sun7i-a20-pps-gpio.dts
new file mode 100644
index 000000000..fe3e2bd96
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-pps-gpio.dts
@@ -0,0 +1,29 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target = <&pio>;
+ __overlay__ {
+ pps_pins: pps_pins {
+ pins = "PI15";
+ function = "gpio_in";
+ };
+ };
+ };
+
+ fragment@1 {
+ target-path = "/";
+ __overlay__ {
+ pps@0 {
+ compatible = "pps-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pps_pins>;
+ gpios = <&pio 8 15 0>; /* PI15 */
+ status = "okay";
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-pwm.dts b/arch/arm/boot/dts/overlay/sun7i-a20-pwm.dts
new file mode 100644
index 000000000..a0cc4695c
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-pwm.dts
@@ -0,0 +1,15 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target = <&pwm>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0_pins_a>, <&pwm1_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-spdif-out.dts b/arch/arm/boot/dts/overlay/sun7i-a20-spdif-out.dts
new file mode 100644
index 000000000..7983ad0eb
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-spdif-out.dts
@@ -0,0 +1,38 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target = <&spdif>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&spdif_tx_pins_a>;
+ status = "okay";
+ };
+ };
+
+ fragment@1 {
+ target-path = "/";
+ __overlay__ {
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "On-board SPDIF";
+
+ simple-audio-card,cpu {
+ sound-dai = <&spdif>;
+ };
+
+ simple-audio-card,codec {
+ sound-dai = <&spdif_out>;
+ };
+ };
+
+ spdif_out: spdif-out {
+ #sound-dai-cells = <0>;
+ compatible = "linux,spdif-dit";
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-spi-add-cs1.dts b/arch/arm/boot/dts/overlay/sun7i-a20-spi-add-cs1.dts
new file mode 100644
index 000000000..2de39a20e
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-spi-add-cs1.dts
@@ -0,0 +1,16 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target = <&spi0>;
+ __overlay__ {
+ pinctrl-names = "default", "default", "default";
+ pinctrl-0 = <&spi0_pins_a>;
+ pinctrl-1 = <&spi0_cs0_pins_a>;
+ pinctrl-2 = <&spi0_cs1_pins_a>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-spi-jedec-nor.dts b/arch/arm/boot/dts/overlay/sun7i-a20-spi-jedec-nor.dts
new file mode 100644
index 000000000..baf59df75
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-spi-jedec-nor.dts
@@ -0,0 +1,57 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ spi0 = "/soc@01c00000/spi@01c05000";
+ spi1 = "/soc@01c00000/spi@01c06000";
+ spi2 = "/soc@01c00000/spi@01c17000";
+ };
+ };
+
+ fragment@1 {
+ target = <&spi0>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spiflash {
+ compatible = "jedec,spi-nor";
+ status = "disabled";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&spi1>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spiflash {
+ compatible = "jedec,spi-nor";
+ status = "disabled";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
+
+ fragment@3 {
+ target = <&spi2>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spiflash {
+ compatible = "jedec,spi-nor";
+ status = "disabled";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-spi-spidev.dts b/arch/arm/boot/dts/overlay/sun7i-a20-spi-spidev.dts
new file mode 100644
index 000000000..8d0f6ac8e
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-spi-spidev.dts
@@ -0,0 +1,57 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ spi0 = "/soc@01c00000/spi@01c05000";
+ spi1 = "/soc@01c00000/spi@01c06000";
+ spi2 = "/soc@01c00000/spi@01c17000";
+ };
+ };
+
+ fragment@1 {
+ target = <&spi0>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spidev {
+ compatible = "spidev";
+ status = "disabled";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&spi1>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spidev {
+ compatible = "spidev";
+ status = "disabled";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
+
+ fragment@3 {
+ target = <&spi2>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spidev {
+ compatible = "spidev";
+ status = "disabled";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-spi0.dts b/arch/arm/boot/dts/overlay/sun7i-a20-spi0.dts
new file mode 100644
index 000000000..04442626a
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-spi0.dts
@@ -0,0 +1,23 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ spi0 = "/soc@01c00000/spi@01c05000";
+ };
+ };
+
+ fragment@1 {
+ target = <&spi0>;
+ __overlay__ {
+ status = "okay";
+ pinctrl-names = "default", "default";
+ pinctrl-0 = <&spi0_pins_a>;
+ pinctrl-1 = <&spi0_cs0_pins_a>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-spi1.dts b/arch/arm/boot/dts/overlay/sun7i-a20-spi1.dts
new file mode 100644
index 000000000..3c3fcb864
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-spi1.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ spi1 = "/soc@01c00000/spi@01c06000";
+ };
+ };
+
+ fragment@1 {
+ target = <&spi1>;
+ __overlay__ {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi1_pins_a>, <&spi1_cs0_pins_a>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-spi2.dts b/arch/arm/boot/dts/overlay/sun7i-a20-spi2.dts
new file mode 100644
index 000000000..b38e04c35
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-spi2.dts
@@ -0,0 +1,23 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ spi2 = "/soc@01c00000/spi@01c17000";
+ };
+ };
+
+ fragment@1 {
+ target = <&spi2>;
+ __overlay__ {
+ status = "okay";
+ pinctrl-names = "default", "default";
+ pinctrl-0 = <&spi2_pins_a>;
+ pinctrl-1 = <&spi2_cs0_pins_a>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-uart2.dts b/arch/arm/boot/dts/overlay/sun7i-a20-uart2.dts
new file mode 100644
index 000000000..b4f7230d7
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-uart2.dts
@@ -0,0 +1,32 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial2 = "/soc@01c00000/serial@01c28800";
+ };
+ };
+
+ fragment@1 {
+ target = <&pio>;
+ __overlay__ {
+ uart2_pins_a_2: uart2@1 {
+ pins = "PI18", "PI19";
+ function = "uart2";
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&uart2>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_pins_a_2>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-uart3.dts b/arch/arm/boot/dts/overlay/sun7i-a20-uart3.dts
new file mode 100644
index 000000000..75e79eadc
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-uart3.dts
@@ -0,0 +1,42 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial3 = "/soc@01c00000/serial@01c28c00";
+ };
+ };
+
+ fragment@1 {
+ target = <&pio>;
+ __overlay__ {
+ uart3_pins_a_2: uart3@2 {
+ pins = "PG6", "PG7";
+ function = "uart3";
+ };
+
+ uart3_pins_a_rts_cts: uart3@1 {
+ pins = "PG8", "PG9";
+ function = "uart3";
+ };
+
+ uart3_pins_b_rts_cts: uart3@3 {
+ pins = "PH2", "PH3";
+ function = "uart3";
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&uart3>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_pins_a_2>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-uart4.dts b/arch/arm/boot/dts/overlay/sun7i-a20-uart4.dts
new file mode 100644
index 000000000..008cf83a2
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-uart4.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial4 = "/soc@01c00000/serial@01c29000";
+ };
+ };
+
+ fragment@1 {
+ target = <&uart4>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart4_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-uart5.dts b/arch/arm/boot/dts/overlay/sun7i-a20-uart5.dts
new file mode 100644
index 000000000..32367102a
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-uart5.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial5 = "/soc@01c00000/serial@01c29400";
+ };
+ };
+
+ fragment@1 {
+ target = <&uart5>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart5_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-uart6.dts b/arch/arm/boot/dts/overlay/sun7i-a20-uart6.dts
new file mode 100644
index 000000000..124353866
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-uart6.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial6 = "/soc@01c00000/serial@01c29800";
+ };
+ };
+
+ fragment@1 {
+ target = <&uart6>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart6_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-uart7.dts b/arch/arm/boot/dts/overlay/sun7i-a20-uart7.dts
new file mode 100644
index 000000000..3087271b4
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-uart7.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial7 = "/soc@01c00000/serial@01c29c00";
+ };
+ };
+
+ fragment@1 {
+ target = <&uart7>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart7_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun7i-a20-w1-gpio.dts b/arch/arm/boot/dts/overlay/sun7i-a20-w1-gpio.dts
new file mode 100644
index 000000000..7d77606a1
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun7i-a20-w1-gpio.dts
@@ -0,0 +1,29 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun7i-a20";
+
+ fragment@0 {
+ target = <&pio>;
+ __overlay__ {
+ w1_pins: w1_pins {
+ pins = "PI15";
+ function = "gpio_in";
+ };
+ };
+ };
+
+ fragment@1 {
+ target-path = "/";
+ __overlay__ {
+ onewire@0 {
+ compatible = "w1-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&w1_pins>;
+ gpios = <&pio 8 15 0>; /* PI15 */
+ status = "okay";
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-analog-codec.dts b/arch/arm/boot/dts/overlay/sun8i-h3-analog-codec.dts
new file mode 100644
index 000000000..36dbc31ae
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-analog-codec.dts
@@ -0,0 +1,17 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target = <&codec>;
+ __overlay__ {
+ allwinner,audio-routing =
+ "Line Out", "LINEOUT",
+ "MIC1", "Mic",
+ "Mic", "MBIAS";
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-cir.dts b/arch/arm/boot/dts/overlay/sun8i-h3-cir.dts
new file mode 100644
index 000000000..9b62fd2b8
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-cir.dts
@@ -0,0 +1,15 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target = <&ir>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&ir_pins_a>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-fixup.scr-cmd b/arch/arm/boot/dts/overlay/sun8i-h3-fixup.scr-cmd
new file mode 100644
index 000000000..744889c6e
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-fixup.scr-cmd
@@ -0,0 +1,110 @@
+# overlays fixup script
+# implements (or rather substitutes) overlay arguments functionality
+# using u-boot scripting, environment variables and "fdt" command
+
+# setexpr test_var ${tmp_bank} - A
+# works only for hex numbers (A-F)
+
+setenv decompose_pin 'setexpr tmp_bank sub "P(A|C|D|G)\\d+" "\\1";
+setexpr tmp_pin sub "P\\S(\\d+)" "\\1";
+test "${tmp_bank}" = "A" && setenv tmp_bank 0;
+test "${tmp_bank}" = "C" && setenv tmp_bank 2;
+test "${tmp_bank}" = "D" && setenv tmp_bank 3;
+test "${tmp_bank}" = "G" && setenv tmp_bank 6'
+
+if test -n "${param_spinor_spi_bus}"; then
+ test "${param_spinor_spi_bus}" = "0" && setenv tmp_spi_path "spi@01c68000"
+ test "${param_spinor_spi_bus}" = "1" && setenv tmp_spi_path "spi@01c69000"
+ fdt set /soc/${tmp_spi_path} status "okay"
+ fdt set /soc/${tmp_spi_path}/spiflash status "okay"
+ if test -n "${param_spinor_max_freq}"; then
+ fdt set /soc/${tmp_spi_path}/spiflash spi-max-frequency "<${param_spinor_max_freq}>"
+ fi
+ if test "${param_spinor_spi_cs}" = "1"; then
+ fdt set /soc/${tmp_spi_path}/spiflash reg "<1>"
+ fi
+ env delete tmp_spi_path
+fi
+
+if test -n "${param_spidev_spi_bus}"; then
+ test "${param_spidev_spi_bus}" = "0" && setenv tmp_spi_path "spi@01c68000"
+ test "${param_spidev_spi_bus}" = "1" && setenv tmp_spi_path "spi@01c69000"
+ fdt set /soc/${tmp_spi_path} status "okay"
+ fdt set /soc/${tmp_spi_path}/spidev status "okay"
+ if test -n "${param_spidev_max_freq}"; then
+ fdt set /soc/${tmp_spi_path}/spidev spi-max-frequency "<${param_spidev_max_freq}>"
+ fi
+ if test "${param_spidev_spi_cs}" = "1"; then
+ fdt set /soc/${tmp_spi_path}/spidev reg "<1>"
+ fi
+ env delete tmp_spi_path
+fi
+
+if test -n "${param_pps_pin}"; then
+ setenv tmp_bank "${param_pps_pin}"
+ setenv tmp_pin "${param_pps_pin}"
+ run decompose_pin
+ fdt set /soc/pinctrl@01c20800/pps_pins pins "${param_pps_pin}"
+ fdt get value tmp_phandle /soc/pinctrl@01c20800 phandle
+ fdt set /pps@0 gpios "<${tmp_phandle} ${tmp_bank} ${tmp_pin} 0>"
+ env delete tmp_pin tmp_bank tmp_phandle
+fi
+
+if test "${param_pps_falling_edge}" = "1"; then
+ fdt set /pps@0 assert-falling-edge
+fi
+
+for f in ${overlays}; do
+ if test "${f}" = "pwm"; then
+ setenv bootargs_new ""
+ for arg in ${bootargs}; do
+ if test "${arg}" = "console=ttyS0,115200"; then
+ echo "Warning: Disabling ttyS0 console due to enabled PWM overlay"
+ else
+ setenv bootargs_new "${bootargs_new} ${arg}"
+ fi
+ done
+ setenv bootargs "${bootargs_new}"
+ fi
+done
+
+if test -n "${param_w1_pin}"; then
+ setenv tmp_bank "${param_w1_pin}"
+ setenv tmp_pin "${param_w1_pin}"
+ run decompose_pin
+ fdt set /soc/pinctrl@01c20800/w1_pins pins "${param_w1_pin}"
+ fdt get value tmp_phandle /soc/pinctrl@01c20800 phandle
+ fdt set /onewire@0 gpios "<${tmp_phandle} ${tmp_bank} ${tmp_pin} 0>"
+ env delete tmp_pin tmp_bank tmp_phandle
+fi
+
+if test "${param_w1_pin_int_pullup}" = "1"; then
+ fdt set /soc/pinctrl@01c20800/w1_pins bias-pull-up
+fi
+
+if test "${param_uart1_rtscts}" = "1"; then
+ fdt get value tmp_phandle1 /soc/pinctrl@01c20800/uart1 phandle
+ fdt get value tmp_phandle2 /soc/pinctrl@01c20800/uart1_rts_cts phandle
+ fdt set /soc/serial@01c28400 pinctrl-names "default" "default"
+ fdt set /soc/serial@01c28400 pinctrl-0 "<${tmp_phandle1}>"
+ fdt set /soc/serial@01c28400 pinctrl-1 "<${tmp_phandle2}>"
+ env delete tmp_phandle1 tmp_phandle2
+fi
+
+if test "${param_uart2_rtscts}" = "1"; then
+ fdt get value tmp_phandle1 /soc/pinctrl@01c20800/uart2 phandle
+ fdt get value tmp_phandle2 /soc/pinctrl@01c20800/uart2_rts_cts phandle
+ fdt set /soc/serial@01c28800 pinctrl-names "default" "default"
+ fdt set /soc/serial@01c28800 pinctrl-0 "<${tmp_phandle1}>"
+ fdt set /soc/serial@01c28800 pinctrl-1 "<${tmp_phandle2}>"
+ env delete tmp_phandle1 tmp_phandle2
+fi
+
+if test "${param_uart3_rtscts}" = "1"; then
+ fdt get value tmp_phandle1 /soc/pinctrl@01c20800/uart3 phandle
+ fdt get value tmp_phandle2 /soc/pinctrl@01c20800/uart3_rts_cts phandle
+ fdt set /soc/serial@01c28c00 pinctrl-names "default" "default"
+ fdt set /soc/serial@01c28c00 pinctrl-0 "<${tmp_phandle1}>"
+ fdt set /soc/serial@01c28c00 pinctrl-1 "<${tmp_phandle2}>"
+ env delete tmp_phandle1 tmp_phandle2
+fi
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-i2c0.dts b/arch/arm/boot/dts/overlay/sun8i-h3-i2c0.dts
new file mode 100644
index 000000000..b457ac717
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-i2c0.dts
@@ -0,0 +1,20 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ i2c0 = "/soc/i2c@01c2ac00";
+ };
+ };
+
+ fragment@1 {
+ target = <&i2c0>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-i2c1.dts b/arch/arm/boot/dts/overlay/sun8i-h3-i2c1.dts
new file mode 100644
index 000000000..fd0928a18
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-i2c1.dts
@@ -0,0 +1,20 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ i2c1 = "/soc/i2c@01c2b000";
+ };
+ };
+
+ fragment@1 {
+ target = <&i2c1>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-i2c2.dts b/arch/arm/boot/dts/overlay/sun8i-h3-i2c2.dts
new file mode 100644
index 000000000..25b75b71c
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-i2c2.dts
@@ -0,0 +1,20 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ i2c2 = "/soc/i2c@01c2b400";
+ };
+ };
+
+ fragment@1 {
+ target = <&i2c2>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-pps-gpio.dts b/arch/arm/boot/dts/overlay/sun8i-h3-pps-gpio.dts
new file mode 100644
index 000000000..16a737b02
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-pps-gpio.dts
@@ -0,0 +1,29 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target = <&pio>;
+ __overlay__ {
+ pps_pins: pps_pins {
+ pins = "PD14";
+ function = "gpio_in";
+ };
+ };
+ };
+
+ fragment@1 {
+ target-path = "/";
+ __overlay__ {
+ pps@0 {
+ compatible = "pps-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pps_pins>;
+ gpios = <&pio 3 14 0>; /* PD14 */
+ status = "okay";
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-pwm.dts b/arch/arm/boot/dts/overlay/sun8i-h3-pwm.dts
new file mode 100644
index 000000000..ed3b8e606
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-pwm.dts
@@ -0,0 +1,39 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target-path = "/chosen";
+ __overlay__ {
+ /delete-property/ stdout-path;
+ };
+ };
+
+ fragment@1 {
+ target = <&uart0>;
+ __overlay__ {
+ status = "disabled";
+ };
+ };
+
+ fragment@2 {
+ target = <&pio>;
+ __overlay__ {
+ pwm0_pin: pwm0 {
+ pins = "PA5";
+ function = "pwm0";
+ };
+ };
+ };
+
+ fragment@3 {
+ target = <&pwm>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0_pin>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-spdif-out.dts b/arch/arm/boot/dts/overlay/sun8i-h3-spdif-out.dts
new file mode 100644
index 000000000..c7c01411a
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-spdif-out.dts
@@ -0,0 +1,38 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target = <&spdif>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&spdif_tx_pins_a>;
+ status = "okay";
+ };
+ };
+
+ fragment@1 {
+ target-path = "/";
+ __overlay__ {
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "On-board SPDIF";
+
+ simple-audio-card,cpu {
+ sound-dai = <&spdif>;
+ };
+
+ simple-audio-card,codec {
+ sound-dai = <&spdif_out>;
+ };
+ };
+
+ spdif_out: spdif-out {
+ #sound-dai-cells = <0>;
+ compatible = "linux,spdif-dit";
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-spi-add-cs1.dts b/arch/arm/boot/dts/overlay/sun8i-h3-spi-add-cs1.dts
new file mode 100644
index 000000000..bd8e25617
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-spi-add-cs1.dts
@@ -0,0 +1,41 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target = <&pio>;
+ __overlay__ {
+ spi0_cs1: spi0_cs1 {
+ pins = "PA21";
+ function = "gpio_out";
+ output-high;
+ };
+
+ spi1_cs1: spi1_cs1 {
+ pins = "PA10";
+ function = "gpio_out";
+ output-high;
+ };
+ };
+ };
+
+ fragment@1 {
+ target = <&spi0>;
+ __overlay__ {
+ pinctrl-names = "default", "default";
+ pinctrl-1 = <&spi0_cs1>;
+ cs-gpios = <0>, <&pio 0 21 0>; /* PA21 */
+ };
+ };
+
+ fragment@2 {
+ target = <&spi1>;
+ __overlay__ {
+ pinctrl-names = "default", "default";
+ pinctrl-1 = <&spi1_cs1>;
+ cs-gpios = <0>, <&pio 0 10 0>; /* PA10 */
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-spi-jedec-nor.dts b/arch/arm/boot/dts/overlay/sun8i-h3-spi-jedec-nor.dts
new file mode 100644
index 000000000..ad22a71ac
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-spi-jedec-nor.dts
@@ -0,0 +1,42 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ spi0 = "/soc/spi@01c68000";
+ spi1 = "/soc/spi@01c69000";
+ };
+ };
+
+ fragment@1 {
+ target = <&spi0>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spiflash {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ status = "disabled";
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&spi1>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spiflash {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ status = "disabled";
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-spi-spidev.dts b/arch/arm/boot/dts/overlay/sun8i-h3-spi-spidev.dts
new file mode 100644
index 000000000..180979e0b
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-spi-spidev.dts
@@ -0,0 +1,42 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ spi0 = "/soc/spi@01c68000";
+ spi1 = "/soc/spi@01c69000";
+ };
+ };
+
+ fragment@1 {
+ target = <&spi0>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spidev {
+ compatible = "spidev";
+ status = "disabled";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&spi1>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spidev {
+ compatible = "spidev";
+ status = "disabled";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-uart1.dts b/arch/arm/boot/dts/overlay/sun8i-h3-uart1.dts
new file mode 100644
index 000000000..8a4f7e49b
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-uart1.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial1 = "/soc/serial@01c28400";
+ };
+ };
+
+ fragment@1 {
+ target = <&uart1>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pins>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-uart2.dts b/arch/arm/boot/dts/overlay/sun8i-h3-uart2.dts
new file mode 100644
index 000000000..499a1b496
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-uart2.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial2 = "/soc/serial@01c28800";
+ };
+ };
+
+ fragment@1 {
+ target = <&uart2>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_pins>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-uart3.dts b/arch/arm/boot/dts/overlay/sun8i-h3-uart3.dts
new file mode 100644
index 000000000..b5734c5bf
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-uart3.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target-path = "/aliases";
+ __overlay__ {
+ serial3 = "/soc/serial@01c28c00";
+ };
+ };
+
+ fragment@1 {
+ target = <&uart3>;
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_pins>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-usbhost0.dts b/arch/arm/boot/dts/overlay/sun8i-h3-usbhost0.dts
new file mode 100644
index 000000000..6bd8aedbe
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-usbhost0.dts
@@ -0,0 +1,27 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target = <&ehci0>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment@1 {
+ target = <&ohci0>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment@2 {
+ target = <&usbphy>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-usbhost1.dts b/arch/arm/boot/dts/overlay/sun8i-h3-usbhost1.dts
new file mode 100644
index 000000000..4c7222b10
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-usbhost1.dts
@@ -0,0 +1,27 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target = <&ehci1>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment@1 {
+ target = <&ohci1>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment@2 {
+ target = <&usbphy>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-usbhost2.dts b/arch/arm/boot/dts/overlay/sun8i-h3-usbhost2.dts
new file mode 100644
index 000000000..2b83ec933
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-usbhost2.dts
@@ -0,0 +1,27 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target = <&ehci2>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment@1 {
+ target = <&ohci2>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment@2 {
+ target = <&usbphy>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-usbhost3.dts b/arch/arm/boot/dts/overlay/sun8i-h3-usbhost3.dts
new file mode 100644
index 000000000..e2f28ab1a
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-usbhost3.dts
@@ -0,0 +1,27 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target = <&ehci3>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment@1 {
+ target = <&ohci3>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment@2 {
+ target = <&usbphy>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/overlay/sun8i-h3-w1-gpio.dts b/arch/arm/boot/dts/overlay/sun8i-h3-w1-gpio.dts
new file mode 100644
index 000000000..f4ccb7fba
--- /dev/null
+++ b/arch/arm/boot/dts/overlay/sun8i-h3-w1-gpio.dts
@@ -0,0 +1,29 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "allwinner,sun8i-h3";
+
+ fragment@0 {
+ target = <&pio>;
+ __overlay__ {
+ w1_pins: w1_pins {
+ pins = "PD14";
+ function = "gpio_in";
+ };
+ };
+ };
+
+ fragment@1 {
+ target-path = "/";
+ __overlay__ {
+ onewire@0 {
+ compatible = "w1-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&w1_pins>;
+ gpios = <&pio 3 14 0>; /* PD14 */
+ status = "okay";
+ };
+ };
+ };
+};