target/linux/mvebu/patches-6.1/701-mvpp2-read-mac-address-from-nvmem.patch

   1 From: Tobias Schramm <tobias@t-sys.eu>
   2 Subject: mvpp2: support fetching mac address from nvmem
   3
   4 The mvpp2 driver did not query nvmem for hardware mac addresses. This
   5 patch adds querying of mac addresses stored in nvmem cells as a further
   6 fallback option before assigning a random address.
   7 Purposely added separately to fwnode_get_mac_address() above to maintain
   8 existing behaviour with builtin adapter mac address still taking
   9 precedence.
  10
  11 Signed-off-by: Tobias Schramm <tobias@t-sys.eu>
  12 ---
  13 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
  14 +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
  15 @@ -6134,6 +6134,12 @@ static void mvpp2_port_copy_mac_addr(str
  16                 }
  17         }
  18
  19 +       if (!of_get_mac_address(to_of_node(fwnode), hw_mac_addr)) {
  20 +               *mac_from = "nvmem cell";
  21 +               eth_hw_addr_set(dev, hw_mac_addr);
  22 +               return;
  23 +       }
  24 +
  25         *mac_from = "random";
  26         eth_hw_addr_random(dev);
  27  }