Current implementation of MAC address fix-up of device tree uses tailing number behind "ethernet" found in "/aliases". It is not necessary for trailing number of “ethernet” to be sequential. There can be hole in between or any node disabled.
hole can be created based on SerDes protocol supported by SoCs. Usually Linux device tree contains "ethernet" node for all possible interface supported by SoC i.e. LS1046A. Where based on SerDes protocol some "ethernet" interface are unavailable. This patch-set provide way to fetch MAC addr sequentially from env variables and also create hole in "ethernet" node (disable) based on SerDes protocol for LS1046ARDB. Other platforms can also follow same approach. Prabhakar Kushwaha (3): common: Fix-up MAC addr in dts by fetching env variable serially arm: Add support of updating dts before fix-up boards: ls1046ardb: disable unavailable "ethernet" node in dts README | 10 ++++++++ arch/arm/lib/bootm-fdt.c | 12 ++++++++++ board/freescale/ls1046ardb/eth.c | 51 ++++++++++++++++++++++++++++++++++++++++ common/fdt_support.c | 25 ++++++++++++++++---- include/configs/ls1046ardb.h | 2 ++ include/fdt_support.h | 3 +++ 6 files changed, 99 insertions(+), 4 deletions(-) -- 2.7.4 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
