Raspberry Pi Raspberry Pi 4
devboard/rpi/rpi4 (platform)
| Property | Description |
|---|---|
| Manufacturer | Raspberry Pi |
| Model | Raspberry Pi 4 |
| Year | 2019 |
| Max CPU | Broadcom BCM2711 |
| Max RAM | 8GB |
| Image | Raspberry Pi 4 (credit Laserlicht, CC BY-SA 4.0 via Wikimedia) (https://thumb.wikimedia.org/wikipedia/commons/thumb/1/10/Raspberry_Pi_4_Model_B_-_Top.jpg/3840px-Raspberry_Pi_4_Model_B_-_Top.jpg) |
| Software: User-Facing Environment | Free |
| Software: Operating System | Free Can be used with the mainline Linux kernel |
| Software: Bootloader/Recovery | Free (Unofficial EDK2) Raspberry Pi devices typically load their kernel directly, with minimal
firmware on the CPU (most initialization is done by the GPU). However, a free port of EDK2 (Intel's reference UEFI implementation) is
available, allowing generic Arm-on-UEFI-compatible operating systems to be installed. |
| Firmware: Trusted Execution Environment (e.g. x86 SMM) | Not Present The Raspberry Pi 4 appears not to use Arm Trusted Firmware or the TrustZone ISA extensions. |
| Firmware: Late Boot/Payload | Proprietary |
| Firmware: Platform Initialization | Proprietary (VPU Firmware) |
| Firmware: Graphics Initialization | Proprietary (VPU Firmware) |
| Firmware: Memory Initialization | Proprietary (VPU Firmware) |
| Firmware: Early Boot (incl. RoT) | Proprietary (VPU Firmware) |
| Firmware: Boot ROM | Proprietary (VPU Boot ROM) |
| Firmware Signing | Yes |
| CPU Microcode | Not microcoded |
| Management Coprocessor: Firmware | Not Present |
| Network Interface: Internal Firmware | Not Present |
| Network Interface: Host-Loaded Firmware | Proprietary (Broadcom WLAN firmware) |
| Security Coprocessor: Firmware | Not Present |
| Embedded Controller: Firmware | Not Present |
| Hardware: Board Electrical Schematic | "Reduced" schematics only |
| Hardware: Board PCB Design | Proprietary |
| Hardware: CPU Instruction Set | Proprietary (Arm) |
| Hardware: CPU/SoC Implementation | Proprietary |
| Hardware: CPU/SoC Synthesis Toolchain | Proprietary |
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