| .. rpi_4b: |
| |
| Raspberry Pi 4 Model B (Cortex-A72) |
| ################################### |
| |
| Overview |
| ******** |
| see <https://www.raspberrypi.com/products/raspberry-pi-4-model-b/specifications/> |
| |
| Hardware |
| ******** |
| see <https://www.raspberrypi.com/documentation/computers/raspberry-pi.html> |
| |
| Supported Features |
| ================== |
| The Raspberry Pi 4 Model B board configuration supports the following |
| hardware features: |
| |
| .. list-table:: |
| :header-rows: 1 |
| |
| * - Peripheral |
| - Kconfig option |
| - Devicetree compatible |
| * - GIC-400 |
| - N/A |
| - :dtcompatible:`arm,gic-v2` |
| * - GPIO |
| - :kconfig:option:`CONFIG_GPIO` |
| - :dtcompatible:`brcm,bcm2711-gpio` |
| * - UART (Mini UART) |
| - :kconfig:option:`CONFIG_SERIAL` |
| - :dtcompatible:`brcm,bcm2711-aux-uart` |
| |
| Other hardware features have not been enabled yet for this board. |
| |
| The default configuration can be found in |
| :zephyr_file:`boards/raspberrypi/rpi_4b/rpi_4b_defconfig` |
| |
| Programming and Debugging |
| ************************* |
| |
| TF Card |
| ======= |
| |
| Prepare a TF card with MBR and FAT32. In the root directory of the TF card: |
| |
| 1. Download and place these firmware files: |
| |
| * `bcm2711-rpi-4-b.dtb <https://raw.githubusercontent.com/raspberrypi/firmware/master/boot/bcm2711-rpi-4-b.dtb>`_ |
| * `bootcode.bin <https://raw.githubusercontent.com/raspberrypi/firmware/master/boot/bootcode.bin>`_ |
| * `start4.elf <https://raw.githubusercontent.com/raspberrypi/firmware/master/boot/start4.elf>`_ |
| |
| 2. Copy ``build/zephyr/zephyr.bin`` |
| 3. Create a ``config.txt``: |
| |
| .. code-block:: text |
| |
| kernel=zephyr.bin |
| arm_64bit=1 |
| enable_uart=1 |
| uart_2ndstage=1 |
| |
| Insert the card and power on the board. You should see the following output on |
| the serial console (GPIO 14/15): |
| |
| .. code-block:: text |
| |
| *** Booting Zephyr OS build XXXXXXXXXXXX *** |
| Hello World! Raspberry Pi 4 Model B! |
