diff --git a/cmd_parser.c b/cmd_parser.c
index 4538c3d..361670a 100644
--- a/cmd_parser.c
+++ b/cmd_parser.c
@@ -25,6 +25,7 @@ extern __xdata uint8_t nSFPPorts;
 extern __xdata uint8_t isRTL8373;
 extern __xdata uint16_t mpos;
 extern __xdata uint8_t stpEnabled;
+extern __code uint8_t log_to_phys_port[9];
 
 extern volatile __xdata uint32_t ticks;
 extern volatile __xdata uint8_t sfr_data[4];
@@ -632,6 +633,27 @@ void cmd_parser(void) __banked
 		if (cmd_compare(0, "regset")) {
 			parse_regset();
 		}
+		if (cmd_compare(0, "eee")) {
+			int8_t port = -1;
+			if (cmd_words_b[2] > 0) {
+				port = cmd_buffer[cmd_words_b[2]] - '1';
+				if (!isRTL8373)
+					port = phys_to_log_port[port];
+			}
+			if (cmd_words_b[1] > 0 && cmd_compare(1, "on")) {
+				print_string("EEE enabled\n");
+				if (port >= 0)
+					port_eee_enable(port);
+				else
+					port_eee_enable_all();
+			} else if (cmd_words_b[1] > 0 && cmd_compare(1, "off")) {
+				print_string("EEE disabled\n");
+				if (port >= 0)
+					port_eee_disable(port);
+				else
+					port_eee_disable_all();
+			}
+		}
 	}
 }
 
diff --git a/rtl837x_port.c b/rtl837x_port.c
index 4383bf0..c603c75 100644
--- a/rtl837x_port.c
+++ b/rtl837x_port.c
@@ -11,6 +11,8 @@
 #include "rtl837x_sfr.h"
 #include "rtl837x_regs.h"
 #include "rtl837x_port.h"
+#include "rtl837x_phy.h"
+#include "phy.h"
 
 #pragma codeseg BANK1
 
@@ -477,6 +479,52 @@ uint16_t port_isolation_get(register uint8_t port)
 }
 
 
+void port_eee_enable(uint8_t port) __banked
+{
+	if (is_sfp[port])
+		return;
+	
+	print_string("EEE on for "); print_byte(port); write_char('\n');
+	REG_SET(RTL8373_EEE_CTRL_BASE + (port << 2), EEE_100 | EEE_1000 | EEE_2G5);
+	// Enable EEE advertisement for 100/1000BASE-T via EEE Advertisement Reg
+	phy_write(port, PHY_MMD_AN, PHY_EEE_ADV, 6); // Bit 1: 100BASE-T, Bit 2: 1000BASE-T
+	// Enable EEE advertisement for 2.5GBASE-T via EEE Advertisement Reg 2
+	phy_write(port, PHY_MMD_AN, PHY_EEE_ADV2, 1);
+	phy_reset(port);
+}
+
+
+void port_eee_disable(uint8_t port) __banked
+{
+	if (is_sfp[port])
+		return;
+
+	print_string("EEE off for "); print_byte(port); write_char('\n');
+	REG_SET(RTL8373_EEE_CTRL_BASE + (port << 2), 0);
+	// Enable EEE advertisement for 100/1000BASE-T via EEE Advertisement Reg
+	phy_write(port, PHY_MMD_AN, PHY_EEE_ADV, 0);
+	// Enable EEE advertisement for 2.5GBASE-T via EEE Advertisement Reg 2
+	phy_write(port, PHY_MMD_AN, PHY_EEE_ADV2, 0);
+	phy_reset(port);
+}
+
+
+void port_eee_enable_all(void) __banked
+{
+	for (uint8_t i = minPort; i <= maxPort; i++) {
+		port_eee_enable(i);
+	}
+}
+
+
+void port_eee_disable_all(void) __banked
+{
+	for (uint8_t i = minPort; i <= maxPort; i++) {
+		port_eee_disable(i);
+	}
+}
+
+
 /*
  * Enable RLDP, Realtek's version of LLDP
  */
diff --git a/rtl837x_port.h b/rtl837x_port.h
index 22bcf61..81eec4c 100644
--- a/rtl837x_port.h
+++ b/rtl837x_port.h
@@ -27,4 +27,8 @@ void port_mirror_del(void) __banked;
 void port_ingress_filter(register uint8_t port, uint8_t type) __banked;
 void port_l2_setup(void) __banked;
 void trunk_set(uint8_t group, uint16_t mask) __banked;
+void port_eee_enable_all(void) __banked;
+void port_eee_disable_all(void) __banked;
+void port_eee_enable(uint8_t port) __banked;
+void port_eee_disable(uint8_t port) __banked;
 #endif
diff --git a/rtl837x_regs.h b/rtl837x_regs.h
index 2ab37db..b0e82bb 100644
--- a/rtl837x_regs.h
+++ b/rtl837x_regs.h
@@ -150,12 +150,20 @@
 /*
  * Loop detection / STP
  */
-
 #define RTL8373_RLDP_TIMER		0x1074
 #define RTL837X_RMA0_CONF		0x4ecc
 #define RTL837X_RMA_CONF		0x4f1c
 #define RTL837X_MSTP_STATES		0x5310
 
+/*
+ * EEE
+ */
+#define RTL8373_EEE_CTRL_BASE		0x606c
+#define EEE_100 	0x01
+#define EEE_1000	0x04
+#define EEE_2G5		0x10
+
+
 #ifdef REGDBG
 
 #define REG_SET(r, v) SFR_DATA_24 = (((uint32_t)v) >> 24) & 0xff; \