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docs: Clean up RaspberryPi Documentation; move

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* Convert the RaspberryPi documentation to markdown
* Move into the proper arm port docs location
This commit is contained in:
Alexander von Gluck IV 2013-04-28 12:37:00 -05:00
parent 361b691265
commit 107ab75ea6
2 changed files with 63 additions and 34 deletions
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build/jam/board/raspberry_pi/info.txt
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Setting up the Haiku boot partition
-------------------------------------
partition 1 -- FAT32, bootable flag, type 'c'
partition 2 -- BeFS, Haiku filesystem, type 'eb'
The boot partition must contain the following files to boot Haiku:
* bootcode.bin : 2nd stage bootloader
* start.elf: The GPU binary firmware image
* haiku_loader: Haiku Loader
* haiku-floppyboot.tgz: Compressed image with Haiku kernel
* config.txt: A configuration file read by the GPU.
Optional files:
* vlls directory: Additional GPU code, e.g. extra codecs.
Building
-------------------------------------
jam -q -sHAIKU_BOOT_BOARD=raspberry_pi -sHAIKU_BOOT_PLATFORM=raspberrypi_arm haiku_loader
jam -q -sHAIKU_BOOT_BOARD=raspberry_pi -sHAIKU_BOOT_PLATFORM=raspberrypi_arm haiku-floppyboot.tgz
config.txt options
-------------------------------------
kernel=haiku_loader
kernel_address=0x0
disable_commandline_tags=1
ramfsfile=haiku-floppyboot.tgz
ramfsaddr=0x04000000
Additional information
-------------------------------------
* Latest Raspberry Pi firmware:
http://github.com/raspberrypi/firmware/tree/master/boot
* config.txt options:
http://www.elinux.org/RPiconfig

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docs/develop/ports/arm/raspberry_pi.md Normal file
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# Raspberry Pi
* http://raspberrypi.org
# Hardware Information
* ARMv6 Architecture
* Broadcom BCM2835 (SoC)
* Includes ARM1176JZF-S CPU @ 700 MHz
* Includes VideoCore IV GPU
* SD Card Storage
* 256 or 512 MB RAM (depending on revision)
* Video Outputs
* HDMI Video Output
* Composite Video Output
* Ethernet
# 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
* haiku_loader: Haiku Loader
* haiku-floppyboot.tgz: Compressed image with Haiku kernel
* config.txt: A configuration file read by the GPU.
### Optional Files
* vlls directory: Additional GPU code, e.g. extra codecs.
# Compiling
* Build an ARM toolchain using `./configure --build-cross-tools-gcc4 arm ../buildtools`
* Build our loader using `jam -q -sHAIKU_BOOT_BOARD=raspberry_pi -sHAIKU_BOOT_PLATFORM=raspberrypi_arm haiku_loader`
* Build our file system using `jam -q -sHAIKU_BOOT_BOARD=raspberry_pi -sHAIKU_BOOT_PLATFORM=raspberrypi_arm haiku-floppyboot.tgz`
# Booting
1. SOC finds bootcode.bin
2. bootcode.bin runs start.elf
2. start.elf reads config.txt and cmdline.txt
3. start.elf runs specified binary at specified address
## config.txt Options
kernel=haiku_loader
kernel_address=0x0
disable_commandline_tags=1
ramfsfile=haiku-floppyboot.tgz
ramfsaddr=0x04000000
# Additional Information
* [Latest Raspberry Pi firmware](http://github.com/raspberrypi/firmware/tree/master/boot)
* [config.txt options](http://www.elinux.org/RPiconfig)