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authorPrabhakar Kushwaha <prabhakar.kushwaha@nxp.com>2017-11-23 16:51:32 +0530
committerSimon Glass <sjg@chromium.org>2017-12-24 12:42:50 -0700
commit24acb83d8f04e9a49f161c07d38da50c70e9f16d (patch)
tree57fad761c1de01d9435456e7ad183fefb5a8140f /README
parent48a346061d1f0a7eff566f6a7cc7eeeba7efb1e2 (diff)
downloadu-boot-24acb83d8f04e9a49f161c07d38da50c70e9f16d.tar.gz
common: Fix-up MAC addr in dts by fetching env variable serially
The MAC addresses get fixed in the device tree for "ethernet" nodes is by using trailing number behind "ethernet" found in "/aliases". It may not be necessary for the "ethernet" nodes to be sequential. There can be gaps in between or any node disabled So provide a support to fetch MAC addr sequentially from env and apply them to "ethernet" nodes in the order they appear in device tree only if "ethernet" is not "disabled" Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'README')
-rw-r--r--README9
1 files changed, 9 insertions, 0 deletions
diff --git a/README b/README
index 93c7ea9665..53502c0628 100644
--- a/README
+++ b/README
@@ -1603,6 +1603,15 @@ The following options need to be configured:
See doc/README.link-local for more information.
+ - MAC address from environment variables
+
+ FDT_SEQ_MACADDR_FROM_ENV
+
+ Fix-up device tree with MAC addresses fetched sequentially from
+ environment variables. This config work on assumption that
+ non-usable ethernet node of device-tree are either not present
+ or their status has been marked as "disabled".
+
- CDP Options:
CONFIG_CDP_DEVICE_ID