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Raspberry Pi 3
http://raspberrypi.org
Hardware Information
- ARMv8 Architecture (64-bit)
- Includes Quad ARM Cortex-A53 CPU @ 1.2 GHz
- Includes VideoCore IV GPU
- Wifi b/g/n single band 2.4 GHz
Setting up the Haiku SD card
The Raspberry Pi SD card generally uses the MBR file system layout below. Partition 1 is all that is required to boot an OS.
- partition 1 – FAT32, bootable flag, type ‘c’
- partition 2 – BeFS, Haiku filesystem, type ‘eb’
Boot Partition
Required Files
- bootcode.bin: 2nd stage bootloader
- start.elf: The GPU binary firmware image
- fixup.dat: Additional code for the GPU
- bcm2710-rpi-3-b.dtb: FDT binary for the Raspberry Pi 3B
- bcm2710-rpi-3-b-plus.dtb: FDT binary for the Raspberry Pi 3B+
- config.txt: A configuration file read by the Pi to start u-boot.bin
- u-boot.bin: u-boot loader for the Pi 3
- boot.scr: u-boot loader script for starting Haiku Loader
- uEnv.txt: configuration file for the boot.scr script
- haiku_loader.efi: Haiku Loader
Optional Files
- vlls directory: Additional GPU code, e.g. extra codecs.
- uEnv.txt: u-boot configuration script to automate boot.
Compiling Haiku and preparing SD card
- Create your ARM work directory "mkdir generated.arm; cd generated.arm"
- Build an ARM toolchain using "../configure --build-cross-tools arm --cross-tools-source ../../buildtools"
- Build SD card image using "jam -q -j6 @minimum-mmc"
- Prepare customized SD card using the "rune" tool. E.g. "rune -b rpi3 -i haiku-mmc.image /dev/mmcblk0"
- Ensure that partition 1 has partition type fat16: "parted /dev/mmcblk0 set 1 esp off"
Booting
1. SOC finds bootcode.bin
2. bootcode.bin runs start.elf
3. start.elf reads config.txt and start u-boot
4. u-boot.bin starts the Haiku loader
5. Haiku loader boots Haiku kernel
config.txt Options
uart_2ndstage=1
enable_uart=1
kernel=u-boot.bin
Additional Information
Latest Raspberry Pi
firmware
config.txt options