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| author | Olaf Mandel <o.mandel at menlosystems.com> | 2015-05-28 14:59:18 +0200 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2015-09-02 15:34:11 +0200 |
| commit | 95c69223f99425ec1a91ca0cb18b7ecadfba3a5d (patch) | |
| tree | f721ed025969b6e1a58819b0814d4453d04a280d /doc/README.imx5 | |
| parent | d0d005b61656bf856da4dcb11b4c47b284e42d10 (diff) | |
| download | u-boot-imx-95c69223f99425ec1a91ca0cb18b7ecadfba3a5d.zip u-boot-imx-95c69223f99425ec1a91ca0cb18b7ecadfba3a5d.tar.gz u-boot-imx-95c69223f99425ec1a91ca0cb18b7ecadfba3a5d.tar.bz2 | |
imx: fec: add MAC reading from eFuses to README
Extend the documentation of the fec_mxc configuration by describing its
ability to read the ethaddr MAC address from the SoC eFuses.
Also add an example how to program the fuses for an imx5 to clarify the
byte order.
Cc: Stefano Babic <sbabic at denx.de>
Cc: Marek Vasut <marex at denx.de>
Signed-off-by: Olaf Mandel <o.mandel at menlosystems.com>
Diffstat (limited to 'doc/README.imx5')
| -rw-r--r-- | doc/README.imx5 | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/README.imx5 b/doc/README.imx5 index c5312b6..ea0e144 100644 --- a/doc/README.imx5 +++ b/doc/README.imx5 @@ -26,3 +26,15 @@ i.MX5x SoCs. 2.1 MAC Address: It is stored in the words 9 to 14 of fuse bank 1, using the natural MAC byte order (i.e. MSB first). + + This is an example how to program an example MAC address 01:23:45:67:89:ab + into the eFuses. Assure that the programming voltage is available and then + execute: + + => fuse prog -y 1 9 01 23 45 67 89 ab + + After programming a MAC address, consider locking the MAC fuses. This is + done by programming the MAC_ADDR_LOCK fuse, which is bit 4 of word 0 in + bank 1: + + => fuse prog -y 1 0 10 |