USB downloader and USB second stage bootloader for OMAP44xx
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aboot.bin
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aboot.bin is a designed to be a second stage USB bootloader (what TI
calls x-loader) for the USB peripheral boot mode of OMAP44xx.

Currently it's somewhat pandaboard-centric, but that should be
easy enough to clean up -- it shouldn't touch any gpiomux config
except (maybe) for the UART.

All it does is send a u32 message (0xaabbccdd) back over the USB link, 
then reads a u32 size from the host.  Then it downloads size bytes
from the host to 0x82000000 and jumps to that address.


usbboot
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usage: usbboot <2ndstage> [ <image> ]

- usbboot will poll every 250ms until it locates an OMAP device 
  (VID 0451, PID d00f)
- it then will send the 2ndstage binary to the device 
- if an image was also provided, it will wait for the 2ndstage to
  send the go-ahead response (0xaabbccdd) and then send that image

COMPILE NOTES:
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To get support for 32bit(-m32) build on 64bit machines(ubuntu):
	sudo apt-get install libc6-dev-i386