u-boot.git/net/Kconfig, branch master

net: make NET a menuconfig (and downgrade NO_NET to a simple config)

2026-04-27T17:26:40+00:00

This will allow a bunch of simplifications across the code base.
Disabling NET is the equivalent of today's NO_NET choice. This means
that if NET is enabled, either the legacy or lwIP stack is necessarily
selected, which allows us to simplify if NET_LEGACY || NET_LWIP into
if NET in a later commit.

Config fragments - or defconfigs including other defconfigs - setting
the network stack (NET_LEGACY or NET_LWIP) must also set NET (or unset
NO_NET) if the config they apply to - or the included defconfigs -
unsets NET (or selects NO_NET) as otherwise the NET_LEGACY and NET_LWIP
symbols are unreachable. This is the case for the two defconfig modified
in this commit.

NO_NET is now a convenience symbol which hides NET entirely to avoid
modifying many defconfigs. If one selected NO_NET to disable the
networking stack in the past, this will still work for now. Technically,
we should be using the "transitional" Kconfig attribute but that is only
available since Kconfig from Linux kernel v6.18 and we're on 6.1 right
now.

Note that this moves CONFIG_SYS_RX_ETH_BUFFER from under the Network
menu back into the main menu as it seems like it needs to be defined
even when there's no need for NET support at all and menuconfig option
doesn't work the same way as a menu.

Signed-off-by: Quentin Schulz 
Reviewed-by: Simon Glass 
Acked-by: Heinrich Schuchardt 
Reviewed-by: Peter Robinson 
Reviewed-by: Tom Rini

rename NET to NET_LEGACY

2026-04-27T17:26:40+00:00

Highlight that NET really is the legacy networking stack by renaming the
option to NET_LEGACY.

This requires us to add an SPL_NET_LEGACY alias to SPL_NET as otherwise
CONFIG_IS_ENABLED(NET_LEGACY) will not work for SPL.

The "depends on !NET_LWIP" for SPL_NET clearly highlights that it is
using the legacy networking app so this seems fine to do.

This also has the benefit of removing potential confusion on NET being a
specific networking stack instead of "any" network stack.

Signed-off-by: Quentin Schulz 
Acked-by: Ilias Apalodimas 
Reviewed-by: Peter Robinson 
Reviewed-by: Tom Rini

move networking menu in net/Kconfig

2026-04-27T17:26:40+00:00

In the main Kconfig, there are only two more menus, General Setup and
Expert, in addition to the net menu. Since the part in the main Kconfig
is mostly about selecting the network stack (legacy or lwIP), and that
we already have a net/Kconfig, let's move those to net/Kconfig to have
everything in the same place.

No intended change in behavior.

Signed-off-by: Quentin Schulz 
Reviewed-by: Ilias Apalodimas 
Reviewed-by: Simon Glass 
Reviewed-by: Peter Robinson 
Reviewed-by: Tom Rini

net: remove unreachable legacy LED code

2025-12-05T16:34:52+00:00

The code is guarded by a condition none of the defconfigs meet (that is
CONFIG_SYS_FAULT_ECHO_LINK_DOWN and CONFIG_LED_STATUS_RED both enabled),
so we can remove the unreachable code sections.

When doing that, there's no caller for miiphy_link anymore, so it can be
removed.

This in turns makes CONFIG_SYS_FAULT_ECHO_LINK_DOWN and
CONFIG_SYS_FAULT_MII_ADDR unused so they are removed as well.

Signed-off-by: Quentin Schulz 
Reviewed-by: Tom Rini

net: Add SYS_FAULT_MII_ADDR to Kconfig

2025-10-22T09:16:09+00:00

The support found under SYS_FAULT_ECHO_LINK_DOWN requires that the
SYS_FAULT_MII_ADDR symbol also be set. This wasn't previously found in
Kconfig, so add it now.

Signed-off-by: Tom Rini 
Acked-by: Jerome Forissier

tftp: make TFTP ports unconditionally configurable

2025-10-22T09:09:24+00:00

A few lines of code being guarded by the CONFIG_TFTP_PORT option seems
an unnecessary restriction on the TFTP support provided by a vanilla
U-Boot image. In cases where the TFTP server cannot run as superuser -
and hence cannot run on the well-known port 69 - this quirk incurs a
full reconfiguration and rebuild of the bootloader only in order to
select the appropriate destination port.

Remove the CONFIG_TFTP_PORT option entirely and make the tftpdstp and
tftpsrcp variables always have an effect. Their being unset will mean
that U-Boot behaves the same as if CONFIG_TFTP_PORT was unset. Update
the documentation accordingly. And fix up the single board which was
originally enabling this option.

Signed-off-by: Alvin Šipraga 
Reviewed-by: Quentin Schulz

net: introduce CONFIG_DNS

2025-08-18T13:47:58+00:00

Introduce the DNS Kconfig symbol so that various network commands may
use host names without the dns command (CMD_DNS) being selected.

Signed-off-by: Jerome Forissier 
CC: E Shattow

Merge tag 'v2025.01-rc5' into next

2024-12-26T04:31:04+00:00

Prepare v2025.01-rc5

net: renesas: Enable TFTP_TSIZE on all Renesas hardware

2024-12-20T21:20:37+00:00

TFTP transfer size can be used to re-size the TFTP progress bar on
single line based on the server reported file size. Enable it by
default for Renesas hardware to avoid long scrolling walls of '#'
character during long TFTP transfers.

Signed-off-by: Marek Vasut

net: Kconfig: add CONFIG_WGET symbol

2024-11-16T20:35:05+00:00

Let net/wget.c and net/lwip/wget.c depend on CONFIG_WGET, and
cmd/wget.c depend on CONFIG_CMD_WGET. This way, the wget code
can be used regardless of whether the wget command is available.

Signed-off-by: Adriano Cordova 
Reviewed-by: Heinrich Schuchardt