Merge tag 'net-20250801' of https://source.denx.de/u-boot/custodians/u-boot-net

Pull request for net-20250801

net:
- Support overriding Auto Negotiation timeout with env variable
  'phy_aneg_timeout'
- Add missing virtqueue_kick() in free_pkt()
- Remove bcm281xx ethernet driver
- Tighten some network driver dependencies in Kconfig
- Add <cpu_func.h> to some platforms
- Fix a debug print in ftgmac100.cA
- Add parentheses around PSEUDO_HDR_SIZE

net-lwip:
- Fix build error with CONFIG_LWIP_DEBUG=y
- Remove eth_init() from net_init() as it is called later
- Simplify net_lwip_eth_start()

net-legacy:
- wget: Fix comparison of unsigned variable
- Incorrect macro used (TCP_0_NOP instead of TCP_1_NOP)

1 files changed, 9 insertions, 0 deletions

diff --git a/doc/usage/environment.rst b/doc/usage/environment.rst
index bb6c351b441..77197d79380 100644
--- a/doc/usage/environment.rst
+++ b/doc/usage/environment.rst
@@ -335,6 +335,15 @@ netretry
     Useful on scripts which control the retry operation
     themselves.
 
+phy_aneg_timeout
+    If set, the specified value will override CONFIG_PHY_ANEG_TIMEOUT.
+    This variable has the same base and unit as CONFIG_PHY_ANEG_TIMEOUT
+    which is "decimal" and "millisecond" respectively. The default value
+    of CONFIG_PHY_ANEG_TIMEOUT may be sufficient for most use-cases, but
+    certain link-partners may require a larger timeout due to the Ethernet
+    PHY they use. Alternatively, the timeout can be reduced as well if the
+    use-case demands it.
+
 rng_seed_size
     Size of random value added to device-tree node /chosen/rng-seed.
     This variable is given as a decimal number.