diff --git a/litex_boards/targets/efinix_trion_t120_bga576_dev_kit.py b/litex_boards/targets/efinix_trion_t120_bga576_dev_kit.py
index a14a3c1..092b802 100755
--- a/litex_boards/targets/efinix_trion_t120_bga576_dev_kit.py
+++ b/litex_boards/targets/efinix_trion_t120_bga576_dev_kit.py
@@ -53,7 +53,7 @@ class BaseSoC(SoCCore):
         with_ethernet   = False,
         with_etherbone  = False,
         eth_phy         = 0,
-        eth_rmii_pmod   = True,
+        eth_rgmii_phy   = False,
         eth_ip          = "192.168.1.50",
         remote_ip       = None,
         with_led_chaser = True,
@@ -95,7 +95,7 @@ class BaseSoC(SoCCore):
         # Ethernet / Etherbone ---------------------------------------------------------------------
         if with_ethernet or with_etherbone:
             # Use board's Ethernet PHYs.
-            if not eth_rmii_pmod:
+            if eth_rgmii_phy:
                 msg =  "\n"
                 msg += "rx_ctl/tx_ctl pads location aren't compatible with DDIO mode.\n"
                 msg += "An hardware modification must be done:\n"
@@ -377,11 +377,12 @@ def main():
     parser.add_target_argument("--sys-clk-freq",   default=75e6, type=float, help="System clock frequency.")
     parser.add_target_argument("--with-spi-flash", action="store_true",      help="Enable SPI Flash (MMAPed).")
     ethopts = parser.target_group.add_mutually_exclusive_group()
-    ethopts.add_argument("--with-ethernet",   action="store_true",     help="Enable Ethernet support.")
-    ethopts.add_argument("--with-etherbone",  action="store_true",     help="Enable Etherbone support.")
-    parser.add_target_argument("--eth-ip",    default="192.168.1.50",  help="Ethernet/Etherbone IP address.")
-    parser.add_target_argument("--remote-ip", default="192.168.1.100", help="Remote IP address of TFTP server.")
-    parser.add_target_argument("--eth-phy",   default=0, type=int,     help="Ethernet PHY: 0 (default) or 1.")
+    ethopts.add_argument("--with-ethernet",       action="store_true",     help="Enable Ethernet support.")
+    ethopts.add_argument("--with-etherbone",      action="store_true",     help="Enable Etherbone support.")
+    parser.add_target_argument("--eth-ip",        default="192.168.1.50",  help="Ethernet/Etherbone IP address.")
+    parser.add_target_argument("--remote-ip",     default="192.168.1.100", help="Remote IP address of TFTP server.")
+    parser.add_target_argument("--eth-rgmii-phy", action="store_true",     help="Uses onboard RGMII Phy instead of RMII PMOD.")
+    parser.add_target_argument("--eth-phy",       default=0, type=int,     help="Ethernet PHY: 0 (default) or 1. (Only available with --eth-rgmii-phy")
     args = parser.parse_args()
 
     soc = BaseSoC(
@@ -392,6 +393,7 @@ def main():
         eth_ip         = args.eth_ip,
         remote_ip      = args.remote_ip,
         eth_phy        = args.eth_phy,
+        eth_rgmii_phy  = args.eth_rgmii_phy,
         **parser.soc_argdict)
     builder = Builder(soc, **parser.builder_argdict)
     if args.build: