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* Kconfig: Add a new DISTRO_DEFAULTS Kconfig optionHans de Goede2016-06-20-0/+6
| | | | | | | | | | | | | | | | | | | | | | DISTRO_DEFAULTS is intended to mirror / replace include/config_distro_defaults.h. The intend is for boards which include this file to select this from their Kconfig files and when moving setting to Kconfig which are #define-ed in config_distro_defaults.h to select this from DISTRO_DEFAULTS so that boards which have selected DISTRO_DEFAULTS will keep the same configuration as before without needing any defconfig file changes. The initial list of selected things matches all settings recently removed from config_distro_defaults.h because they have been converted to Kconfig, with the exception of CMD_ELF and CMD_NET, which have a default of y, if the default of these ever changes they should be selected by DISTRO_DEFAULTS too. For testing and example purposes this commit also converts ARCH_SUNXI to use DISTRO_DEFAULT instead of selecting everything it needs itself. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* Fix variable documented in README.distro for PXE address.Vagrant Cascadian2016-02-15-1/+1
| | | | | | | 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>
* distro bootcmd: enumerate PCI before network operationsStephen Warren2016-01-28-0/+8
| | | | | | | | | 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>
* distro bootcmd: make net boot only optionally start USBStephen Warren2016-01-28-0/+7
| | | | | | | | | | | | | | | | | | | 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>
* README.distro: fix typosMasahiro Yamada2015-07-08-6/+6
| | | | | | | | | | 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>
* Document config_distro_bootcmd environment variables for interactive booting.Karsten Merker2015-03-28-0/+47
| | | | | | | | | | 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>
* add README.distro fileDennis Gilmore2015-01-30-0/+341
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>