diff --git a/target/linux/bcm53xx/patches-4.4/710-b53-add-hacky-CPU-port-fixes-for-devices-not-using-p.patch b/target/linux/bcm53xx/patches-4.4/710-b53-add-hacky-CPU-port-fixes-for-devices-not-using-p.patch
index dfc422ee3e..43c1978f49 100644
--- a/target/linux/bcm53xx/patches-4.4/710-b53-add-hacky-CPU-port-fixes-for-devices-not-using-p.patch
+++ b/target/linux/bcm53xx/patches-4.4/710-b53-add-hacky-CPU-port-fixes-for-devices-not-using-p.patch
@@ -21,7 +21,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
  
  #include "b53_regs.h"
  #include "b53_priv.h"
-@@ -1313,6 +1314,18 @@ static int b53_switch_init(struct b53_de
+@@ -1313,6 +1314,20 @@ static int b53_switch_init(struct b53_de
  			sw_dev->cpu_port = 5;
  	}
  
@@ -29,6 +29,8 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
 +		sw_dev->cpu_port = 7;
 +	else if (of_machine_is_compatible("netgear,r8000"))
 +		sw_dev->cpu_port = 8;
++	else if (of_machine_is_compatible("netgear,r8500"))
++		sw_dev->cpu_port = 8;
 +
 +	/*
 +	 * Workaround for devices using port 8 (connected to the 3rd iface).