Commit graph

7 commits

Author SHA1 Message Date
Simon Glass
d9778ff0d3 cros: Add information about booting Chrome OS on x86
Recent versions of Chrome OS do not have a kernel in the root disk, to
save space.

With the improvements to the 'zboot' command it is fairly easy to load
the kernel from the raw partition. Add instructions on how to do this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-09-25 11:27:11 +08:00
Simon Glass
dc8e7a91f4 cros: Update chromium documentation
A few things have changed since this was written about 18 months ago.
Update the README.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-09-25 11:27:10 +08:00
Simon Glass
1b96da67a0 chromium: Update docs to clone vboot_reference directly
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>
2019-07-18 11:31:30 -04:00
Simon Glass
9d73e85a87 cros: Expand the Chromium OS documentation
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>
2019-04-11 20:10:05 -06:00
Peter Robinson
84996795c2 tegra: nyan-big: Update CONFIG_SYS_TEXT to the default in README.chromium
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>
2018-07-06 09:12:39 -07:00
Simon Glass
fe67eaccd0 README: Add instructions for chain-loading U-Boot on jerry
Add instructions for chromebook_jerry.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-09 13:45:34 -06:00
Simon Glass
c9af6673e8 README: Add instructions for chain-loading U-Boot
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>
2017-06-09 13:39:34 -06:00