Currently when booting dhcp_run() may be executed multiple times:
once in eth_bootdev_hunt() and once in the network booting bootmeth.

We need to call eth_bootdev_hunt() when setting up the EFI sub-system to
supply the simple network protocol. We don't need an IP address set up.

We can reduce the bootime by not executing dhcp_run() in
eth_bootdev_hunt().

Furthermore eth_bootdev_hunt() with autostart=yes leads on the legacy
network stack leads to downloading a file via TFTP and to booting the
downloaded file.

Instead of running dchp_run() just check that there is a network device
in eth_bootdev_hunt().

Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>

When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.

This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>

Remove <common.h> from all "net/" files and when needed add
missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>

It seems better to call this a 'bootdev' since this is name used in the
documentation. The older 'Bootdevice' name is no-longer used and may cause
confusion with the 'bootdevice' environment variable.

Update throughout to use bootdev.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

We use the terms 'distro' to mean extlinux but they are not really the
same. 'Distro' could refer to any method of booting a distribution,
whereas extlinux is a particular method.

Also we sometimes use syslinux, but it is better to use the same term in
all cases.

Rename distro to syslinux and also update bootstd uses of syslinux to use
extlinux instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

We need extensions to be set up before we start trying to boot any of the
bootdevs. Add a new priority before all the others for tht sort of thing.
Also add a 'none' option, so that the first one is not 0.

While we are here, comment enum bootdev_prio_t fully and expand the test
for the 'bootdev hunt' command.

Signed-off-by: Simon Glass <sjg@chromium.org>

These functions return 0 if the check passes, so the names are somewhat
confusing. Rename them.

Signed-off-by: Simon Glass <sjg@chromium.org>

Sometimes ethernet devices are attached to PCI. Since it is quick to scan,
add this into the ethernet hunter.

Run dhcp to establish the network connection. Drop this from the bootdev
since that is not needed now. Update a log message for clarity.

Signed-off-by: Simon Glass <sjg@chromium.org>

Add a bootdev driver for Ethernet. It can use the PXE boot mechanism to
locate a file, added later.

Signed-off-by: Simon Glass <sjg@chromium.org>