diff --git a/software/library/boards/board.build b/software/library/boards/board.build
index d90d2423569927d33f6c34499334730121ee15ee..3e098a530aca6a606db9c10d13d5cad6ab524317 100644
--- a/software/library/boards/board.build
+++ b/software/library/boards/board.build
@@ -4,6 +4,12 @@
   CONFIG_BMAAA
   CONFIG_BMAAA_BOARD brain
 
+  %subsection ethernet
+    CONFIG_DRIVER_NET_DWC10100
+    CONFIG_DRIVER_NET_DWC10100_MDIO_MEM
+    CONFIG_NET_ETHERNET
+  %end
+
 %section bmaaa-pinky
   %inherit nrf51-xxac
 
diff --git a/software/library/boards/brain.c b/software/library/boards/brain.c
index 5892a94cbebb619bdfd0ee62a396d47b79255b16..8d95524f450058a08fb566c32af39c347388db4b 100644
--- a/software/library/boards/brain.c
+++ b/software/library/boards/brain.c
@@ -77,6 +77,26 @@ DEV_DECLARE_STATIC(timer4_dev, "timer4", 0, stm32_timer_drv,
     DEV_STATIC_RES_IRQ(0, STM32_IRQ_TIM4, DEV_IRQ_SENSE_HIGH_LEVEL, 0, 0x1),
 );
 
+#if defined(CONFIG_DRIVER_NET_DWC10100)
+/* UART 4 */
+DEV_DECLARE_STATIC(dwc10100_dev, "eth0", 0, dwc10100_drv,
+    DEV_STATIC_RES_MEM(STM32_ETHERNET_MAC_ADDR, STM32_ETHERNET_MAC_ADDR + STM32_ETHERNET_MAC_SIZE),
+    DEV_STATIC_RES_MEM(STM32_ETHERNET_MMC_ADDR, STM32_ETHERNET_MMC_ADDR + STM32_ETHERNET_MMC_SIZE),
+    DEV_STATIC_RES_MEM(STM32_ETHERNET_DMA_ADDR, STM32_ETHERNET_DMA_ADDR + STM32_ETHERNET_DMA_SIZE),
+
+    DEV_STATIC_RES_FREQ(72000000, 1),
+    DEV_STATIC_RES_DEV_PARAM("gpio", "/gpio"),
+    DEV_STATIC_RES_DEV_IOMUX("/gpio"),
+
+    DEV_STATIC_RES_IOMUX("mdc", 0, STM32_PC1, 0, 0),
+    DEV_STATIC_RES_IOMUX("mdio", 0, STM32_PA2, 0, 0),
+    DEV_STATIC_RES_GPIO("resetn", STM32_PC7, 1),
+
+    DEV_STATIC_RES_DEV_ICU("/cpu"),
+    DEV_STATIC_RES_IRQ(0, STM32_IRQ_ETH, DEV_IRQ_SENSE_HIGH_LEVEL, 0, 0x1),
+);
+#endif
+
 #include <hexo/endian.h>
 #include <hexo/iospace.h>
 #include <arch/stm32/f1/rcc.h>