Board:cubietech/cubieboard: Difference between revisions

Revision as of 10:22, 10 January 2014

Whoa! Slow down cowboy! Go review, then come back.

TODOs

Integrate mksunxiboot into our buildsystem
Figure out how to move bootblock and CBFS header to make room for BOOT0 header.
Figure out the whole MMC/blockdev/NAND shenanigance

Build

Build prerequisites

mksunxiboot

The BROM will only load our bootblock, if it finds a signature, and a correct checksum. These are currently added with mxsunxiboot. The source is available from sunxi uboot. Since this tool is not yet integrated into our build system, the build will silently fail to produce a bootable image if mksunxiboot is not in PATH.

Installation

Counter to the usual way of doing things, the bootable coreboot image resides in build/BOOT0. This image needs to be placed on the SD card at an offset of 8 KiB. This is a limitation on how the CPU loads the bootblock, and there's nothing we can do about it.

# dd if=build/BOOT0 of=/path/to/sdcard/blockdev bs=1024 seek=8

@@ Line 14: / Line 14: @@
 The BROM will only load our bootblock, if it finds a signature, and a correct checksum. These are currently added with '''mxsunxiboot'''. The source is available from [https://github.com/linux-sunxi/u-boot-sunxi/blob/sunxi/tools/mksunxiboot.c sunxi uboot]. Since this tool is not yet integrated into our build system, the build will silently fail to produce a bootable image if '''mksunxiboot''' is not in PATH.
+== Installation ==
+Counter to the usual way of doing things, the bootable coreboot image resides in build/BOOT0. This image needs to be placed on the SD card at an offset of 8 KiB. This is a limitation on how the CPU loads the bootblock, and there's nothing we can do about it.
+ # '''dd if=build/BOOT0 of=/path/to/sdcard/blockdev bs=1024 seek=8'''