haiku/docs/develop/ports/arm/beagle.md

# BeagleBone Black
* http://beagleboard.org
* TODO: This is a WIP

# Hardware information (Rev A5A)

* ARMv7 Architecture
* Sitara AM3359AZCZ100 Cortex-A8 CPU @ 1 Ghz
* PowerVR SGX530 3D GPU
* eMMC Onboard Storage 2GB (MMC1)
* SD Card Storage (MMC0)
* 512 MB DDR3L RAM
* Video Outputs
  * HDMI Video Output (with audio)
* SMSC LAN8710A Ethernet

# Setting up the Haiku SD card

The BeagleBone Black supports booting from an microSD card while the boot switch is pressed at power on. A MBR file system layout is normally used as seen 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

* MLO
* u-boot.img: u-Boot image
* uEnv.txt: u-Boot Environment settings

### Optional files

* ID.txt: Unknown

# Compiling

*  Create your work directory `mkdir generated.beagle; cd generated.beagle`
*  Build an ARM toolchain using `../configure --build-cross-tools arm ../../buildtools --target-board beagle`
*  TODO

# Booting

1. If the boot switch is not depressed:
   MMC1, MMC0, UART0, USB0
2. If the boot switch is depressed:
   SPI0, MMC0, USB0, UART0

# Emulation

The Linaro Fork of QEmu has beagle board (and other OMAP3) support.
https://launchpad.net/qemu-linaro

It seems you get this as the default QEmu install on some, but not all, Ubuntu
versions. For other distros (or Haiku), you'll have to compile it yourself.

# Additional information

* [CircutCo WikiPage](http://circuitco.com/support/index.php?title=BeagleBoneBlack)
* [BeagleBone Black A5A SRM](https://github.com/CircuitCo/BeagleBone-Black/blob/master/BBB_SRM.pdf?raw=true)