[PATCH 0/3] arm: mvebu: Espressobin: Set default env values at runtime

Pali Rohár
2020-12-23T11:21:27Z

This patch series set default env values of $fdtfile and $ethNaddr for
Espressobin board at runtime.

It fixes two main issues on Espressobin board that 'env default -a'
completely erases permanent board MAC addresses and also erase $fdtfile
variable which is needed for booting Linux kernel via distro boot.

Lot of people were complaining about erasing permanent MAC addresses by
U-boot on this board and due to this issue some linux distributions
started using static hardcoded MAC addresses for all Espressobin boards
to workaround this issue. Apparently erase of MAC addresses or usage of
static hardcoded value caused more issues on network (e.g. inability to
connect two of these boards to the same network).

Pali Roh?r (3):
env: Allow to set default_environment[] from board code via compile
option DEFAULT_ENV_IS_RW
arm: mvebu: Espressobin: Set default value for $fdtfile env variable
arm: mvebu: Espressobin: Set default value for $ethNaddr env variable

board/Marvell/mvebu_armada-37xx/board.c | 41 ++++++++++++++++++++-----
include/configs/mvebu_armada-37xx.h | 17 +++++++++-
include/env_default.h | 2 ++
include/env_internal.h | 4 +++
4 files changed, 56 insertions(+), 8 deletions(-)

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2.20.1