The DIR-685 has the MAC addresses in the RedBoot code just like
DNS-313. Check some magic numbers to determine that the MAC
address is where we want it and extract it from RedBoot.

Signed-off-by: Linus Walleij <[email protected]>
---
ChangeLog v1->v2:
- Rebase on the other patches
- Use library functions to get partition and hex MAC address
- Use ip to set up mac address
---
 .../lib/preinit/05_set_ether_mac_gemini           | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/target/linux/gemini/base-files/lib/preinit/05_set_ether_mac_gemini 
b/target/linux/gemini/base-files/lib/preinit/05_set_ether_mac_gemini
index a51c223d85c9..f702e0458c2e 100644
--- a/target/linux/gemini/base-files/lib/preinit/05_set_ether_mac_gemini
+++ b/target/linux/gemini/base-files/lib/preinit/05_set_ether_mac_gemini
@@ -18,6 +18,21 @@ set_ether_mac() {
                        fi
                fi
                ;;
+       dlink,dir-685)
+               # The DIR-685 has a special field in its RedBoot
+               # binary that we need to check
+               part=$(find_mtd_part RedBoot)
+               if [ ! -z $part ] ; then
+                       DEVID="$(dd if=$part bs=1 skip=81516 count=7 
2>/dev/null)"
+                       if [ "x$DEVID" = "xILI9322" ] ; then
+                               MAC1=$(mtd_get_mac_binary RedBoot 95040)
+                               MAC2=$(mtd_get_mac_binary RedBoot 95046)
+                               ifconfig eth0 hw ether $MAC1 2>/dev/null
+                               ifconfig eth1 hw ether $MAC2 2>/dev/null
+                               return 0
+                       fi
+               fi
+               ;;
        esac
 
        # Most devices have a standard "VCTL" partition
-- 
2.21.0


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