We don't need a full checkout of Chrome OS to build U-Boot with
Chromium OS verified boot. Update the instructions accordingly and fix a
typo which joins the output directory and defconfig.
Signed-off-by: Simon Glass <sjg@chromium.org>
The current documentation only covers how to chain-load U-Boot on a
Chromebook. Add more information about the other ways to use U-Boot on
Chromebooks.
In particular it is again possible to build it with Chromium OS
verified boot.
Signed-off-by: Simon Glass <sjg@chromium.org>
To build U-Boot on a Nyan Big Chromebook the docs outline adjusting the Tegra124
defined CONFIG_SYS_TEXT_BASE but this has since been moved to individual config
files. We should have the default required for U-Boot chain loading on the
chromebook as the default CONFIG_SYS_TEXT_BASE and update the docs to remove
this now non required step.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Most Chromebooks support chain-loading U-Boot but instructions are
somewhat scattered. Add a README to hold this information within the
U-Boot tree. Also add the standard developer keys to simplify the
instructions, since they are small.
For now this only supports nyan-big.
Signed-off-by: Simon Glass <sjg@chromium.org>
