Commit Graph

6 Commits

Author SHA1 Message Date
Vagrant Cascadian
7101c4ce8d Fix variable documented in README.distro for PXE address.
Fixes typo of pxe_addr_r with pxefile_addr_r.

Signed-off-by: Vagrant Cascadian <vagrant@debian.org>
Reviewed-by: Stephen Warren <swarren@wwwdotorg.org>
2016-02-15 12:04:45 -05:00
Stephen Warren
986691fb97 distro bootcmd: enumerate PCI before network operations
The PCI bus must be enumerated before PCI devices, such as Ethernet
devices, are known to U-Boot. Enhance the distro boot commands to perform
PCI enumeration when needed.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-01-28 21:01:23 -07:00
Stephen Warren
3483b75d94 distro bootcmd: make net boot only optionally start USB
Currently, the distro boot commands always enumerate USB devices before
performing network operations. However, depending on the board and end-
user configuration, network devices may not be attached to USB, and so
enumerating USB may not be necessary. Enhance the scripts to make this
step optional, so that the user can decrease boot time if they don't
need USB.

This change is performed by moving the "usb start" invocation into a
standalone variable. If the user desires, they can replace that
variable's value with some no-op command such as "true" instead.

Booting from a USB storage device always needs to enumerate USB devices,
so this action is still hard-coded.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-01-28 21:01:23 -07:00
Masahiro Yamada
28fd00b777 README.distro: fix typos
The word "partition" is doubled.  Keep decent forms for the
following lines.

Also, fix some other typos while we are here.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
2015-07-08 18:26:41 -04:00
Karsten Merker
8c24929019 Document config_distro_bootcmd environment variables for interactive booting.
config_distro_bootcmd.h defines a common boot environment for multiple
platforms, including several environment variables that are intended for
interactive use by an end-user.  Document which variables are considered
public interfaces that must remain compatible in future u-boot versions.

Signed-off-by: Karsten Merker <merker@debian.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
2015-03-28 12:07:45 -04:00
Dennis Gilmore
ffb4f6f95a add README.distro file
Add documentation on how to setup a system to use the generic distro
configs and boot commands. This spells out what is needed to make a
system conformant, but does not limit the board to only the defaults.

Signed-off-by: Dennis Gilmore <dennis@ausil.us>
[swarren, added concept, user config, BOOT_TARGET_DEVICES sections.
edited the rest]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
2015-01-30 09:19:16 -05:00