Build Android filesystem

The files downloaded from 0xlab are modified. Here is how it works now.

1. U-boot: u-boot can be version as long as it detect C4 board. You can use "saveenv" to save boot options to NAND. At least the delay time was saved. The following code should be used to pass the boot option to kernel.

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"mmcargs=setenv bootargs console=${console} " \
"init=/init " \
"rootwait " \
"vram=${vram} " \
"omapfb.mode=640x480MR-16@60 " \
"omapfb.debug=y " \
"omapdss.def_disp=${defaultdisplay} " \
"root=${mmcroot} " \
"rootfstype=${mmcrootfstype}\0" \
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2. Kernel: The kernel file can be downloaded from http://gitorious.org/0xlab-kernel. The only thing you need to change is the boot option.

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CONFIG_CMDLINE="root=/dev/mmcblk0p2 init=/init rw console=ttyS2,115200n8"
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That will set the root to the SD card.

3. Root file system: Zipped root file system from 0xlab works fine. The compiled system does not work very well at this moment.