1Raspberry Pi 4
2##############
3
4-  http://raspberrypi.org
5
6Hardware Information
7====================
8
9-  ARMv8 Architecture (64-bit)
10-  Broadcom BCM2711 (SoC)
11
12   -  Includes Quad ARM Cortex-A72 CPU @ 1.8 GHz
13   -  Includes VideoCore VI GPU
14
15-  SD Card Storage
16-  1, 2, 4 or 8 GB RAM
17-  Video Outputs
18
19   -  2x HDMI Video Output via micro-HDMI
20   -  Composite Video Output
21
22-  Ethernet 10/100/1000 Mbit/s
23-  Wifi b/g/n/ac dual band 2.4/5 GHz
24-  Bluetooth 5.0
25-  2x USB 2.0, 2x USB 3.0
26
27Setting up the Haiku SD card
28============================
29
30The Raspberry Pi SD card generally uses the MBR file system layout
31below. Partition 1 is all that is required to boot an OS.
32
33-  partition 1 ��� FAT32, bootable flag, type ���ef���
34-  partition 2 ��� BeFS, Haiku filesystem, type ���eb���
35
36Boot Partition
37--------------
38
39Required Files
40~~~~~~~~~~~~~~
41
42-  start4.elf: The GPU binary firmware image
43-  fixup4.dat: Additional code for the GPU
44-  bcm2711-rpi-4-b.dtb: FDT binary for the Raspberry Pi 4B
45-  bcm2711-rpi-400.dtb: FDT binary for the Raspberry Pi 400
46-  config.txt: A configuration file read by the Pi to start u-boot.bin
47-  u-boot.bin: u-boot loader for the Pi 4
48-  boot.scr: u-boot loader script for starting Haiku Loader
49-  uEnv.txt: configuration file for the boot.scr script
50-  haiku_loader.efi: Haiku Loader
51
52Note: unlike previous Raspberry Pi models, there's no bootcode.bin on the
53Raspberry Pi 4 as it's replaced by a boot EEPROM.
54
55Optional Files
56~~~~~~~~~~~~~~
57
58-  vlls directory: Additional GPU code, e.g.��extra codecs.
59-  uEnv.txt: u-boot configuration script to automate boot.
60
61Compiling Haiku and preparing SD card
62=====================================
63
64-  Create your ARM work directory
65   ``mkdir generated.arm; cd generated.arm``
66-  Build an ARM toolchain using
67   ``../configure --build-cross-tools arm --cross-tools-source ../../buildtools``
68-  Build SD card image using ``jam -q -j6 @minimum-mmc``
69-  Prepare customized SD card using the ``rune`` tool. E.g. ``rune -b rpi4 -i haiku-mmc.image /dev/mmcblk0``
70
71Booting
72=======
73
741. SOC starts the boot EEPROM
752. Boot EEPROM runs start4.elf
763. start4.elf reads config.txt and start u-boot
774. u-boot.bin starts the Haiku loader
785. Haiku loader boots Haiku kernel
79
80config.txt Options
81------------------
82
83::
84
85   uart_2ndstage=1
86   enable_uart=1
87   kernel=u-boot.bin
88
89
90Additional Information
91======================
92
93-  `Latest Raspberry Pi
94   firmware <http://github.com/raspberrypi/firmware/tree/master/boot>`__
95-  `config.txt options <http://www.elinux.org/RPiconfig>`__
96