net: phy: ensure Gigabit features are masked off if requested

[people/ms/u-boot.git] / doc / README.imx5

diff --git a/doc/README.imx5 b/doc/README.imx5
index e08941e2ae3c1282b4829399023bf9ddb3e5a3da..ea0e144cedcf2074a4752e8d1f03a7b9681ae78b 100644 (file)
--- a/doc/README.imx5
+++ b/doc/README.imx5
@@ -20,3 +20,21 @@ i.MX5x SoCs.
     This option should be enabled for boards having a SYS_ON_OFF_CTL signal
     connected to GPIO1[23] and triggering the MAIN_PWR_ON signal like in the
     reference designs.
+
+2. CONVENTIONS FOR FUSE ASSIGNMENTS
+-----------------------------------
+
+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