diff --git a/src/board.hpp b/src/board.hpp
index 1ce77a9..5817b7a 100644
--- a/src/board.hpp
+++ b/src/board.hpp
@@ -159,6 +159,11 @@ static std::map <std::string, target_board_t> board_list = {
 			DBUS7, DBUS6, 0,
 			DBUS4, DBUS0, DBUS1, DBUS2,
 			0, 0, CABLE_DEFAULT),
+	JTAG_BOARD("gcm_jtag",       "none", "ft4232",     0, 0, CABLE_DEFAULT),
+	SPI_BOARD("gcm_bootflash",   "none", "ft4232_b",
+			0, 0, 0,
+			DBUS3, DBUS0, DBUS1, DBUS2,
+			0, 0, CABLE_DEFAULT),
 	SPI_BOARD("gatemate_pgm_spi",   "colognechip", "gatemate_pgm",
 			DBUS4, DBUS5, CBUS0, DBUS3, DBUS0, DBUS1, DBUS2, 0, 0, CABLE_DEFAULT),
 	JTAG_BOARD("gatemate_evb_jtag", "", "gatemate_evb_jtag", 0, 0, CABLE_DEFAULT),
diff --git a/src/cable.hpp b/src/cable.hpp
index 9e4f2a5..f76c87e 100644
--- a/src/cable.hpp
+++ b/src/cable.hpp
@@ -113,6 +113,7 @@ static std::map <std::string, cable_t> cable_list = {
 	{"ft232",              FTDI_SER(0x0403, 0x6014, FTDI_INTF_A, 0x08, 0x0B, 0x08, 0x0B)},
 	{"ft232RL",            FTDI_BB( 0x0403, 0x6001, FTDI_INTF_A, 0x08, 0x0B, 0x08, 0x0B)},
 	{"ft4232",             FTDI_SER(0x0403, 0x6011, FTDI_INTF_A, 0x08, 0x0B, 0x08, 0x0B)},
+	{"ft4232_b",           FTDI_SER(0x0403, 0x6011, FTDI_INTF_B, 0x00, 0x1B, 0x00, 0x00)},
 	{"ft4232hp",           FTDI_SER(0x0403, 0x6043, FTDI_INTF_A, 0x08, 0x0B, 0x00, 0x00)},
 	{"ft4232hp_b",         FTDI_SER(0x0403, 0x6043, FTDI_INTF_B, 0x08, 0x0B, 0x00, 0x00)},
 	{"gwu2x",              CABLE_DEF_FULL(MODE_GWU2X, 0x33AA, 0x0120, 0x02, 0x07, 0x0, 0x0)},