Template:Device-tree-overlays-rock3 - Revision history

Stephen: Created page with "== Device Tree Overlays: ROCK 3 == === Introduction === This page discribes device tree overlays on ROCK 3. Device tree overlays is controlled by file /boot/uEnv.txt 2022-05-04T15:25:59Z Created page with "== Device Tree Overlays: ROCK 3 == === Introduction === This page discribes device tree overlays on ROCK 3. Device tree overlays is controlled by file <code>/boot/uEnv.txt</..." New page == Device Tree Overlays: ROCK 3 == === Introduction === This page discribes device tree overlays on ROCK 3. Device tree overlays is controlled by file <code>/boot/uEnv.txt</code>. You can do the setting for ROCK 3 in your /boot/uEnv.txt, which should cause your ROCK 3 to do your wanted things after a reboot. In <code>/boot/dtbs/$(uname -r)/rockchip/overlay/ </code> you will find many .dtbo files. The loader will merge the selected .dtbo files by reading the file /boot/uEnv.txt. === File uEnv.txt === /boot/uEnv.txt contents: overlays=rk3568-uart0 rk3568-can1-m0 rk3568-pwm13-m0 param_w1_pin=GPIO3_A5 Add names of overlays you want to activate to overlays= line in /boot/uEnv.txt, separated with spaces. Add required parameters with their values to /boot/uEnv.txt, one per line. Add optional parameters with their values to /boot/uEnv.txt if you want to change the default value, one per line. ==== U-Boot Environment Variable ==== * verbosity Kernel log level: 1~7 verbosity=7 * rootfstype root filesystem type: ext4 rootfstype=ext4 * fdtfile Kernel device tree name with the prefix, '''rockchip/''' fdtfile=rockchip/rk3566-radxa-cm3-io.dtb * extraargs ** Driver module parameters extraargs=mem=512MB max_loop=8 === RK3566/RK3568 Available Overlay (ROCK 3 A, ROCK 3 B, Radxa E23, Radxa E25) === * rk3568-can1-m0 rk3568-can1-m1 * rk3568-i2c2-m0 rk3568-i2c3-m0 * rk3568-pwm1-m0 rk3568-pwm1-m1 rk3568-pwm2-m0 rk3568-pwm2-m1 rk3568-pwm8-m0-fan rk3568-pwm9-m0 rk3568-pwm12-m0 rk3568-pwm12-m1 rk3568-pwm13-m0 rk3568-pwm13-m1 rk3568-pwm14-m0 rk3568-pwm14-m1 k3568-pwm15-m0 rk3568-pwm15-m1 * rk3568-spi3-m1-cs0-spidev * rk3568-uart0 rk3568-uart3-m0 rk3568-uart3-m1 rk3568-uart5-m1 rk3568-uart7-m1 rk3568-uart8-m1 rk3568-uart9-m1 * rk3568-w1-gpio ===== '''rk3568-can1-m0''' ===== Activates CAN bus 1 M0 CAN1 M0 pins: CAN1_RX_M0, CAN1_TX_M0 Usage: Add the item "rk3568-can1-m0" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-can1-m0 ===== '''rk3568-can1-m1''' ===== Activates CAN bus 1 M1 CAN1 M0 pins: CAN1_RX_M1, CAN1_TX_M1 Usage: Add the item "rk3568-can1-m1" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-can1-m1 ===== '''rk3568-i2c2-m0''' ===== Activates I2C bus 2 M0 I2C2 M0 pins: I2C2_SDA_M0, I2C2_SCL_M0 Usage: Add the item "rk3568-i2c2-m0" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-i2c2-m0 ===== '''rk3568-i2c3-m0''' ===== Activates I2C bus 3 M0 I2C3 M0 pins: I2C3_SDA_M0, I2C3_SCL_M0 Usage: Add the item "rk3568-i2c3-m0" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-i2c3-m0 ===== '''rk3568-pwm1-m0''' ===== Activates PWM1_M0 Usage: Add the item "rk3568-pwm1-m0" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-pwm1-m0 ===== '''rk3568-pwm1-m1''' ===== Activates PWM1_M1 Usage: Add the item "rk3568-pwm1-m1" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-pwm1-m1 ===== '''rk3568-pwm2-m0''' ===== Activates PWM2_M0 Usage: Add the item "rk3568-pwm2-m0" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-pwm2-m0 ===== '''rk3568-pwm2-m1''' ===== Activates PWM2_M1 Usage: Add the item "rk3568-pwm2-m1" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-pwm2-m1 ===== '''rk3568-pwm8-m0-fan''' ===== Activates PWM8_M0 Usage: Add the item "rk3568-pwm8-m0-fan" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-pwm8-m0-fan ===== '''rk3568-pwm9-m0''' ===== Activates PWM9_M0 Usage: Add the item "rk3568-pwm9-m0" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-pwm9-m0 ===== '''rk3568-pwm12-m0''' ===== Activates PWM12_M0 Usage: Add the item "rk3568-pwm12-m0" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-pwm12-m0 ===== '''rk3568-pwm12-m1''' ===== Activates PWM12_M1 Usage: Add the item "rk3568-pwm12-m1" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-pwm12-m1 ===== '''rk3568-pwm13-m0''' ===== Activates PWM13_M0 Usage: Add the item "rk3568-pwm13-m0" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-pwm13-m0 ===== '''rk3568-pwm13-m1''' ===== Activates PWM13_M1 Usage: Add the item "rk3568-pwm13-m1" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-pwm13-m1 ===== '''rk3568-pwm14-m0''' ===== Activates PWM14_M0 Usage: Add the item "rk3568-pwm14-m0" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-pwm14-m0 ===== '''rk3568-pwm14-m1''' ===== Activates PWM14_M1 Usage: Add the item "rk3568-pwm14-m1" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-pwm14-m1 ===== '''rk3568-pwm15-m0''' ===== Activates PWM15_M0 Usage: Add the item "k3568-pwm15-m0" to "overlays=" line in /boot/uEnv.txt. overlays=k3568-pwm15-m0 ===== '''rk3568-pwm15-m1''' ===== Activates PWM15_M1 Usage: Add the item "rk3568-pwm15-m1" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-pwm15-m1 ===== '''rk3568-spi3-m1-cs0-spidev''' ===== Activates SPI3 M0 (/dev/spidev3.0) SPI3 M1 pins: SPI3_CS0_M1, SPI3_CLK_M1, SPI3_MOSI_M1, SPI3_MISO_M1 Usage: Add the item "rk3568-spi3-m1-cs0-spidev" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-spi3-m1-cs0-spidev ===== '''rk3568-uart0''' ===== Activates serial port 0 (/dev/ttyS0) UART0 pins: UART0_RX, UART0_TX Usage: Add the item "rk3568-uart0" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-uart0 ===== '''rk3568-uart3-m0''' ===== Activates serial port 3 on M0 (/dev/ttyS3) UART3 M0 pins: UART3_RX_M0, UART3_TX_M0 Usage: Add the item "rk3568-uart3-m0" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-uart3-m0 ===== '''rk3568-uart3-m1''' ===== Activates serial port 3 on M1 (/dev/ttyS3) UART3 M1 pins: UART3_RX_M1, UART3_TX_M1 Usage: Add the item "rk3568-uart3-m1" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-uart3-m1 ===== '''rk3568-uart5-m1''' ===== Activates serial port 5 on M1 (/dev/ttyS5) UART5 M1 pins: UART5_RX_M1, UART5_TX_M1 Usage: Add the item "rk3568-uart5-m1" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-uart5-m1 ===== '''rk3568-uart7-m1''' ===== Activates serial port 7 on M1 (/dev/ttyS7) UART7 M1 pins: UART7_RX_M1, UART7_TX_M1 Usage: Add the item "rk3568-uart7-m1" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-uart7-m1 ===== '''rk3568-uart8-m1''' ===== Activates serial port 8 on M1 (/dev/ttyS8) UART8 M1 pins: UART8_RX_M1, UART8_TX_M1 Usage: Add the item "rk3568-uart8-m1" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-uart8-m1 ===== '''rk3568-uart9-m1''' ===== Activates serial port 9 on M1 (/dev/ttyS9) UART9 M1 pins: UART9_RX_M1, UART9_TX_M1 Usage: Add the item "rk3568-uart9-m1" to "overlays=" line in /boot/uEnv.txt. overlays=rk3568-uart9-m1 ===== '''rk3568-w1-gpio''' ===== Activates 1-Wire GPIO master Requires an external pull-up resistor on the data pin * Parameters: param_w1_pin (pin) * Data pin for 1-Wire master * Optional * Default: GPIO3_A5 Usage: Add the item "rk3568-w1-gpio" to "overlays=" line in /boot/uEnv.txt. Also param_w1_pin is needed. overlays=rk3568-w1-gpio param_w1_pin=GPIO3_A5