ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_find_dqs_en_phase_sweep_dq_in_delay...

[oweals/u-boot.git] / include / net.h

diff --git a/include/net.h b/include/net.h
index b9c13f282cd347df2e2346f2c32267e90a5a64d4..d09bec9de1560e8c2443269fb2045f95ea84e7f7 100644 (file)
--- a/include/net.h
+++ b/include/net.h
@@ -119,7 +119,9 @@ enum eth_recv_flags {
  * mcast: Join or leave a multicast group (for TFTP) - optional
  * write_hwaddr: Write a MAC address to the hardware (used to pass it to Linux
  *              on some platforms like ARM). This function expects the
- *              eth_pdata::enetaddr field to be populated - optional
+ *              eth_pdata::enetaddr field to be populated. The method can
+ *              return -ENOSYS to indicate that this is not implemented for
+                this hardware - optional.
  * read_rom_hwaddr: Some devices have a backup of the MAC address stored in a
  *                 ROM on the board. This is how the driver should expose it
  *                 to the network stack. This function should fill in the