[U-Boot] [PATCH v2 1/2] net: axi_ethernet: Add driver to u-boot v2
Michal Simek
monstr at monstr.eu
Tue Mar 8 15:25:52 CET 2011
Add the first axi_ethernet driver for little-endian Microblaze.
Signed-off-by: Michal Simek <monstr at monstr.eu>
---
v2:
- Fix return addreses
- Fix NULL pointer defer for priv structure
---
.../xilinx/microblaze-generic/microblaze-generic.c | 4 +
drivers/net/Makefile | 1 +
drivers/net/xilinx_axi_emac.c | 535 ++++++++++++++++++++
include/configs/microblaze-generic.h | 3 +
4 files changed, 543 insertions(+), 0 deletions(-)
create mode 100644 drivers/net/xilinx_axi_emac.c
diff --git a/board/xilinx/microblaze-generic/microblaze-generic.c b/board/xilinx/microblaze-generic/microblaze-generic.c
index 5c07fdb..e711546 100644
--- a/board/xilinx/microblaze-generic/microblaze-generic.c
+++ b/board/xilinx/microblaze-generic/microblaze-generic.c
@@ -73,6 +73,10 @@ int board_eth_init(bd_t *bis)
{
int ret = 0;
+#ifdef CONFIG_XILINX_AXIEMAC
+ ret |= xilinx_axiemac_initialize(bis, XILINX_AXIEMAC_BASEADDR,
+ XILINX_AXIDMA_BASEADDR);
+#endif
#ifdef CONFIG_XILINX_EMACLITE
ret |= xilinx_emaclite_initialize(bis, XILINX_EMACLITE_BASEADDR);
#endif
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index fd9d0b4..01752a5 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -83,6 +83,7 @@ COBJS-$(CONFIG_TSEC_ENET) += tsec.o
COBJS-$(CONFIG_TSI108_ETH) += tsi108_eth.o
COBJS-$(CONFIG_ULI526X) += uli526x.o
COBJS-$(CONFIG_VSC7385_ENET) += vsc7385.o
+COBJS-$(CONFIG_XILINX_AXIEMAC) += xilinx_axi_emac.o
COBJS-$(CONFIG_XILINX_EMACLITE) += xilinx_emaclite.o
COBJS := $(sort $(COBJS-y))
diff --git a/drivers/net/xilinx_axi_emac.c b/drivers/net/xilinx_axi_emac.c
new file mode 100644
index 0000000..53e25fa
--- /dev/null
+++ b/drivers/net/xilinx_axi_emac.c
@@ -0,0 +1,535 @@
+/*
+ * Copyright (C) 2011 Michal Simek <monstr at monstr.eu>
+ * Copyright (C) 2011 PetaLogix
+ * Copyright (C) 2010 Xilinx, Inc. All rights reserved.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <net.h>
+#include <malloc.h>
+#include <asm/io.h>
+
+/* Axi Ethernet registers offset */
+#define XAE_IS_OFFSET 0x0000000C /* Interrupt status */
+#define XAE_IE_OFFSET 0x00000014 /* Interrupt enable */
+#define XAE_RCW1_OFFSET 0x00000404 /* Rx Configuration Word 1 */
+#define XAE_TC_OFFSET 0x00000408 /* Tx Configuration */
+#define XAE_EMMC_OFFSET 0x00000410 /* EMAC mode configuration */
+#define XAE_MDIO_MC_OFFSET 0x00000500 /* MII Management Config */
+#define XAE_MDIO_MCR_OFFSET 0x00000504 /* MII Management Control */
+#define XAE_MDIO_MRD_OFFSET 0x0000050C /* MII Management Read Data */
+
+/* Link setup */
+#define XAE_EMMC_LINKSPEED_MASK 0xC0000000 /* Link speed */
+#define XAE_EMMC_LINKSPD_10 0x00000000 /* Link Speed mask for 10 Mbit */
+#define XAE_EMMC_LINKSPD_100 0x40000000 /* Link Speed mask for 100 Mbit */
+#define XAE_EMMC_LINKSPD_1000 0x80000000 /* Link Speed mask for 1000 Mbit */
+
+/* Interrupt Status/Enable/Mask Registers bit definitions */
+#define XAE_INT_RXRJECT_MASK 0x00000008 /* Rx frame rejected */
+#define XAE_INT_MGTRDY_MASK 0x00000080 /* MGT clock Lock */
+
+/* Receive Configuration Word 1 (RCW1) Register bit definitions */
+#define XAE_RCW1_RX_MASK 0x10000000 /* Receiver enable */
+
+/* Transmitter Configuration (TC) Register bit definitions */
+#define XAE_TC_TX_MASK 0x10000000 /* Transmitter enable */
+
+/*
+ * Station address bits [47:32]
+ * Station address bits [31:0] are stored in register UAW0
+ */
+#define XAE_UAW0_OFFSET 0x00000700 /* Unicast address word 0 */
+#define XAE_UAW1_OFFSET 0x00000704 /* Unicast address word 1 */
+#define XAE_UAW1_UNICASTADDR_MASK 0x0000FFFF
+
+/* MDIO Management Configuration (MC) Register bit definitions */
+#define XAE_MDIO_MC_MDIOEN_MASK 0x00000040 /* MII management enable*/
+
+/* MDIO Management Control Register (MCR) Register bit definitions */
+#define XAE_MDIO_MCR_PHYAD_MASK 0x1F000000 /* Phy Address Mask */
+#define XAE_MDIO_MCR_PHYAD_SHIFT 24 /* Phy Address Shift */
+#define XAE_MDIO_MCR_REGAD_MASK 0x001F0000 /* Reg Address Mask */
+#define XAE_MDIO_MCR_REGAD_SHIFT 16 /* Reg Address Shift */
+#define XAE_MDIO_MCR_OP_READ_MASK 0x00008000 /* Op Code Read Mask */
+#define XAE_MDIO_MCR_OP_WRITE_MASK 0x00004000 /* Op Code Write Mask */
+#define XAE_MDIO_MCR_INITIATE_MASK 0x00000800 /* Ready Mask */
+#define XAE_MDIO_MCR_READY_MASK 0x00000080 /* Ready Mask */
+
+#define XAE_MDIO_DIV_DFT 29 /* Default MDIO clock divisor */
+
+/* DMA macros */
+/* Bitmasks of XAXIDMA_CR_OFFSET register */
+#define XAXIDMA_CR_RUNSTOP_MASK 0x00000001 /* Start/stop DMA channel */
+#define XAXIDMA_CR_RESET_MASK 0x00000004 /* Reset DMA engine */
+
+/* Bitmasks of XAXIDMA_SR_OFFSET register */
+#define XAXIDMA_HALTED_MASK 0x00000001 /* DMA channel halted */
+
+/* Bitmask for interrupts */
+#define XAXIDMA_IRQ_IOC_MASK 0x00001000 /* Completion intr */
+#define XAXIDMA_IRQ_DELAY_MASK 0x00002000 /* Delay interrupt */
+#define XAXIDMA_IRQ_ALL_MASK 0x00007000 /* All interrupts */
+
+/* Bitmasks of XAXIDMA_BD_CTRL_OFFSET register */
+#define XAXIDMA_BD_CTRL_TXSOF_MASK 0x08000000 /* First tx packet */
+#define XAXIDMA_BD_CTRL_TXEOF_MASK 0x04000000 /* Last tx packet */
+
+
+#define ENET_MAX_MTU PKTSIZE_ALIGN
+#define DMAALIGN 128
+
+static u8 RxFrame[ENET_MAX_MTU] __attribute((aligned(DMAALIGN))) ;
+
+/* reflect dma offsets */
+struct axidma_reg {
+ u32 control; /* DMACR */
+ u32 status; /* DMASR */
+ u32 current; /* CURDESC */
+ u32 reserved;
+ u32 tail; /* TAILDESC */
+};
+
+/* Private driver structures */
+struct axidma_priv {
+ struct axidma_reg *dmatx;
+ struct axidma_reg *dmarx;
+};
+
+/* BD descriptors */
+typedef struct axidma_bd {
+ u32 next; /* Next descriptor pointer */
+ u32 reserved1;
+ u32 phys; /* Buffer address */
+ u32 reserved2;
+ u32 reserved3;
+ u32 reserved4;
+ u32 cntrl; /* Control */
+ u32 status; /* Status */
+ u32 app0;
+ u32 app1; /* TX start << 16 | insert */
+ u32 app2; /* TX csum seed */
+ u32 app3;
+ u32 app4;
+ u32 sw_id_offset;
+ u32 reserved5;
+ u32 reserved6;
+} axidma_bd __attribute((aligned(DMAALIGN)));
+
+/* Static BDs - driver uses only one BD */
+static axidma_bd tx_bd;
+static axidma_bd rx_bd;
+
+/* Use MII register 1 (MII status register) to detect PHY */
+#define PHY_DETECT_REG 1
+
+/* Mask used to verify certain PHY features (or register contents)
+ * in the register above:
+ * 0x1000: 10Mbps full duplex support
+ * 0x0800: 10Mbps half duplex support
+ * 0x0008: Auto-negotiation support
+ */
+#define PHY_DETECT_MASK 0x1808
+
+static u16 phy_read(struct eth_device *dev, u32 PhyAddress, u32 RegisterNum)
+{
+ u32 MdioCtrlReg = 0;
+
+ /* Wait till MDIO interface is ready to accept a new transaction. */
+ while (!(in_be32(dev->iobase + XAE_MDIO_MCR_OFFSET)
+ & XAE_MDIO_MCR_READY_MASK))
+ ;
+
+ MdioCtrlReg = ((PhyAddress << XAE_MDIO_MCR_PHYAD_SHIFT) &
+ XAE_MDIO_MCR_PHYAD_MASK) |
+ ((RegisterNum << XAE_MDIO_MCR_REGAD_SHIFT)
+ & XAE_MDIO_MCR_REGAD_MASK) |
+ XAE_MDIO_MCR_INITIATE_MASK |
+ XAE_MDIO_MCR_OP_READ_MASK;
+
+ out_be32(dev->iobase + XAE_MDIO_MCR_OFFSET, MdioCtrlReg);
+
+ /* Wait till MDIO transaction is completed. */
+ while (!(in_be32(dev->iobase + XAE_MDIO_MCR_OFFSET)
+ & XAE_MDIO_MCR_READY_MASK))
+ ;
+
+ /* Read data */
+ return (u16) in_be32(dev->iobase + XAE_MDIO_MRD_OFFSET);
+}
+
+/* setting axi emac and phy to proper setting */
+static void setup_phy(struct eth_device *dev)
+{
+ int i;
+ unsigned retries = 100;
+ u16 PhyReg;
+ u16 PhyReg2;
+ int PhyAddr = -1;
+ u32 emmc_reg;
+
+ debug("detecting phy address\n");
+
+ /* detect the PHY address */
+ for (PhyAddr = 31; PhyAddr >= 0; PhyAddr--) {
+ PhyReg = phy_read(dev, PhyAddr, PHY_DETECT_REG);
+
+ if ((PhyReg != 0xFFFF) &&
+ ((PhyReg & PHY_DETECT_MASK) == PHY_DETECT_MASK)) {
+ /* Found a valid PHY address */
+
+ debug("Found valid phy address, %d\n", PhyReg);
+ break;
+ }
+ }
+
+ debug("waiting for the phy to be up\n");
+
+ /* wait for link up and autonegotiation completed */
+ while (retries-- > 0) {
+ if ((PhyReg & 0x24) == 0x24)
+ break;
+ }
+
+ /* get PHY id */
+ PhyReg = phy_read(dev, PhyAddr, 2);
+ PhyReg2 = phy_read(dev, PhyAddr, 2);
+ i = (PhyReg << 16) | PhyReg2;
+ debug("LL_TEMAC: Phy ID 0x%x\n", i);
+
+ /* Marwell 88e1111 id - ml50x, 0x1410141 id - sp605 */
+ if ((i == 0x1410cc2) || (i == 0x1410141)) {
+ debug("Marvell PHY recognized\n");
+
+ /* Setup the emac for the phy speed */
+ emmc_reg = in_be32(dev->iobase + XAE_EMMC_OFFSET);
+ emmc_reg &= ~XAE_EMMC_LINKSPEED_MASK;
+
+ PhyReg = phy_read(dev, PhyAddr, 17);
+
+ if ((PhyReg & 0x8000) == 0x8000) {
+ emmc_reg |= XAE_EMMC_LINKSPD_1000;
+ printf("1000BASE-T\n");
+ } else if ((PhyReg & 0x4000) == 0x4000) {
+ printf("100BASE-T\n");
+ emmc_reg |= XAE_EMMC_LINKSPD_100;
+ } else {
+ printf("10BASE-T\n");
+ emmc_reg |= XAE_EMMC_LINKSPD_10;
+ }
+
+ /* Write new speed setting out to Axi Ethernet */
+ out_be32(dev->iobase + XAE_EMMC_OFFSET, emmc_reg);
+
+ /*
+ * Setting the operating speed of the MAC needs a delay. There
+ * doesn't seem to be register to poll, so please consider this
+ * during your application design.
+ */
+ udelay(1);
+ }
+}
+
+/* STOP DMA transfers */
+static void axiemac_halt(struct eth_device *dev)
+{
+ struct axidma_priv *dma = dev->priv;
+
+ if (dev->state) {
+ /* Stop the hardware */
+ dma->dmatx->control &= ~XAXIDMA_CR_RUNSTOP_MASK;
+ dma->dmarx->control &= ~XAXIDMA_CR_RUNSTOP_MASK;
+ dev->state = 0;
+ }
+ debug("axiemac halted\n");
+}
+
+static void axi_ethernet_init(struct eth_device *dev)
+{
+ /*
+ * Check the status of the MgtRdy bit in the interrupt status
+ * registers. This must be done to allow the MGT clock to become stable
+ * for the Sgmii and 1000BaseX PHY interfaces. No other register reads
+ * will be valid until this bit is valid.
+ * The bit is always a 1 for all other PHY interfaces.
+ */
+ u32 timeout = 200;
+ while (timeout &&
+ (!(in_be32(dev->iobase + XAE_IS_OFFSET) & XAE_INT_MGTRDY_MASK)))
+ timeout--;
+
+ if (!timeout)
+ printf("%s: Timeout\n", __func__);
+
+ /* Stop the device and reset HW */
+ /* Disable interrupts */
+ out_be32(dev->iobase + XAE_IE_OFFSET, 0);
+
+ /* Disable the receiver */
+ out_be32(dev->iobase + XAE_RCW1_OFFSET,
+ in_be32(dev->iobase + XAE_RCW1_OFFSET) & ~XAE_RCW1_RX_MASK);
+
+ /*
+ * Stopping the receiver in mid-packet causes a dropped packet
+ * indication from HW. Clear it.
+ */
+ /* set the interrupt status register to clear the interrupt */
+ out_be32(dev->iobase + XAE_IS_OFFSET, XAE_INT_RXRJECT_MASK);
+
+ /* Setup HW */
+ /* Set default MDIO divisor */
+ out_be32(dev->iobase + XAE_MDIO_MC_OFFSET,
+ (u32) XAE_MDIO_DIV_DFT | XAE_MDIO_MC_MDIOEN_MASK);
+
+ debug("XAxiEthernet InitHw: done\n");
+}
+
+/* DO NOT called setup mac without proper hw initialization */
+static void setup_mac(struct eth_device *dev)
+{
+ /* Set the MAC address */
+ int val = ((dev->enetaddr[3] << 24) | (dev->enetaddr[2] << 16) |
+ (dev->enetaddr[1] << 8) | (dev->enetaddr[0]));
+ out_be32(dev->iobase + XAE_UAW0_OFFSET, val);
+
+ val = (dev->enetaddr[5] << 8) | dev->enetaddr[4] ;
+ val |= in_be32(dev->iobase + XAE_UAW1_OFFSET)
+ & ~XAE_UAW1_UNICASTADDR_MASK;
+ out_be32(dev->iobase + XAE_UAW1_OFFSET, val);
+}
+
+/* Reset DMA engine */
+static void axi_dma_init(struct eth_device *dev)
+{
+ struct axidma_priv *dma = dev->priv;
+
+ /* Reset the engine so the hardware starts from a known state */
+ dma->dmatx->control = XAXIDMA_CR_RESET_MASK;
+ dma->dmarx->control = XAXIDMA_CR_RESET_MASK;
+
+ /* At the initialization time, hardware should finish reset quickly */
+ u32 timeout = 500;
+ while (timeout--) {
+ /* Check transmit/receive channel */
+ /* Reset is done when the reset bit is low */
+ if (!(dma->dmatx->control | dma->dmarx->control)
+ & XAXIDMA_CR_RESET_MASK)
+ break;
+ timeout -= 1;
+ }
+
+ if (!timeout)
+ printf("%s: Timeout\n", __func__);
+}
+
+static int axiemac_init(struct eth_device *dev, bd_t * bis)
+{
+ struct axidma_priv *dma = dev->priv;
+ debug("axi emac init started\n");
+
+ /*
+ * Initialize AXIDMA engine. AXIDMA engine must be initialized before
+ * AxiEthernet. During AXIDMA engine initialization, AXIDMA hardware is
+ * reset, and since AXIDMA reset line is connected to AxiEthernet, this
+ * would ensure a reset of AxiEthernet.
+ */
+ axi_dma_init(dev);
+
+ /* Initialize AxiEthernet hardware. */
+ axi_ethernet_init(dev);
+
+ /* setup mac must be called when hw is initialized */
+ setup_mac(dev);
+
+ /* Start the hardware */
+ dma->dmarx->control |= XAXIDMA_CR_RUNSTOP_MASK;
+ /* Start DMA RX channel. Now it's ready to receive data.*/
+ dma->dmarx->current = (u32)&rx_bd;
+
+ /* Disable all RX interrupts before RxBD space setup */
+ dma->dmarx->control &= ~(XAXIDMA_IRQ_ALL_MASK & XAXIDMA_IRQ_ALL_MASK);
+
+ /* Setup the BD. */
+ memset((void *) &rx_bd, 0, sizeof(axidma_bd));
+ rx_bd.next = (u32)&rx_bd;
+ rx_bd.phys = (u32)&RxFrame;
+ rx_bd.cntrl = sizeof(RxFrame);
+ /* Flush the last BD so DMA core could see the updates */
+ flush_cache((u32)&rx_bd, sizeof(axidma_bd));
+
+ /* it is necessary to flush RxFrame because if you don't do it
+ * then cache can contain uninitialized data */
+ flush_cache((u32)&RxFrame, sizeof(RxFrame));
+
+ /* Rx BD is ready - start */
+ dma->dmarx->tail = (u32)&rx_bd;
+
+ /* enable TX */
+ out_be32(dev->iobase + XAE_TC_OFFSET, XAE_TC_TX_MASK);
+ /* enable RX */
+ out_be32(dev->iobase + XAE_RCW1_OFFSET, XAE_RCW1_RX_MASK);
+
+ /* PHY setup */
+ setup_phy(dev);
+ dev->state = 1;
+ debug("axi emac init complete\n");
+ return 0;
+}
+
+static int axiemac_send(struct eth_device *dev, volatile void *ptr, int len)
+{
+ struct axidma_priv *dma = dev->priv;
+
+ if (len > ENET_MAX_MTU)
+ len = ENET_MAX_MTU;
+
+ /* Flush packet to main memory to be trasfered by DMA */
+ flush_cache(ptr, len);
+
+ /* Setup Tx BD */
+ memset((void *) &tx_bd, 0, sizeof(axidma_bd));
+ /* At the end of the ring, link the last BD back to the top */
+ tx_bd.next = (u32)&tx_bd;
+ tx_bd.phys = (u32)ptr;
+ /* save len */
+ tx_bd.cntrl = len | XAXIDMA_BD_CTRL_TXSOF_MASK |
+ XAXIDMA_BD_CTRL_TXEOF_MASK;
+
+ /* Flush the last BD so DMA core could see the updates */
+ flush_cache((u32)&tx_bd, sizeof(axidma_bd));
+
+ if (dma->dmatx->status & XAXIDMA_HALTED_MASK) {
+ dma->dmatx->current = (u32)&tx_bd;
+ /* Start the hardware */
+ dma->dmatx->control |= XAXIDMA_CR_RUNSTOP_MASK;
+ }
+
+ /* start transfer */
+ dma->dmatx->tail = (u32)&tx_bd;
+
+ /* Wait for transmission to complete */
+ debug("axi emac, waiting for tx to be done\n");
+ while (!dma->dmatx->status &
+ (XAXIDMA_IRQ_DELAY_MASK | XAXIDMA_IRQ_IOC_MASK))
+ ;
+
+ debug("axi emac send complete\n");
+ return 0;
+}
+
+static int IsRxReady(struct eth_device *dev)
+{
+ u32 status;
+ struct axidma_priv *dma = dev->priv;
+
+ /* Read pending interrupts */
+ status = dma->dmarx->status;
+
+ /* Acknowledge pending interrupts */
+ dma->dmarx->status &= XAXIDMA_IRQ_ALL_MASK;
+
+ /*
+ * If Reception done interrupt is asserted, call RX call back function
+ * to handle the processed BDs and then raise the according flag.
+ */
+ if ((status & (XAXIDMA_IRQ_DELAY_MASK | XAXIDMA_IRQ_IOC_MASK)))
+ return 1;
+
+ return 0;
+}
+
+static int axiemac_recv(struct eth_device *dev)
+{
+ u32 length;
+ struct axidma_priv *dma = dev->priv;
+
+ /* wait for an incoming packet */
+ if (!IsRxReady(dev))
+ return 0;
+
+ debug("axi emac, rx data ready\n");
+
+ /* Disable IRQ for a moment till packet is handled */
+ dma->dmarx->control &= ~(XAXIDMA_IRQ_ALL_MASK & XAXIDMA_IRQ_ALL_MASK);
+
+ length = rx_bd.app4 & 0x0000FFFF;
+#ifdef DEBUG
+ print_buffer(&RxFrame, &RxFrame[0], 1, length, 16);
+#endif
+ /* pass the received frame up for processing */
+ if (length)
+ NetReceive(RxFrame, length);
+
+#ifdef DEBUG
+ /* It is useful to clear buffer to be sure that it is consistent */
+ memset(RxFrame, 0, sizeof(RxFrame));
+#endif
+ /* Setup RxBD */
+ /* Clear the whole buffer and setup it again - all flags are cleared */
+ memset((void *) &rx_bd, 0, sizeof(axidma_bd));
+ rx_bd.next = (u32)&rx_bd;
+ rx_bd.phys = (u32)&RxFrame;
+ rx_bd.cntrl = sizeof(RxFrame);
+
+ /* write bd to HW */
+ flush_cache((u32)&rx_bd, sizeof(axidma_bd));
+
+ /* it is necessary to flush RxFrame because if you don't do it
+ * then cache will contain previous packet */
+ flush_cache((u32)&RxFrame, sizeof(RxFrame));
+
+ /* Rx BD is ready - start again */
+ dma->dmarx->tail = (u32)&rx_bd;
+
+ debug("axi emac rx complete, framelength = %d\n", length);
+
+ return length;
+}
+
+int xilinx_axiemac_initialize(bd_t *bis, int base_addr, int dma_addr)
+{
+ struct eth_device *dev;
+ struct axidma_priv *dma;
+
+ dev = calloc(1, sizeof(struct eth_device));
+ if (dev == NULL)
+ return -1;
+
+ dev->priv = calloc(1, sizeof(struct axidma_priv));
+ if (dev->priv == NULL)
+ return -1;
+
+ sprintf(dev->name, "Xilinx_AxiEmac");
+
+ dev->iobase = base_addr;
+ dma = dev->priv;
+ dma->dmatx = dma_addr;
+ dma->dmarx = (u32)dma->dmatx + 0x30; /* rx channel offset */
+ dev->init = axiemac_init;
+ dev->halt = axiemac_halt;
+ dev->send = axiemac_send;
+ dev->recv = axiemac_recv;
+
+ eth_register(dev);
+
+ return 1;
+}
diff --git a/include/configs/microblaze-generic.h b/include/configs/microblaze-generic.h
index a334110..47bfb86 100644
--- a/include/configs/microblaze-generic.h
+++ b/include/configs/microblaze-generic.h
@@ -67,6 +67,9 @@
#elif XILINX_LLTEMAC_BASEADDR
# define CONFIG_XILINX_LL_TEMAC 1
# define CONFIG_SYS_ENET
+#elif defined(XILINX_AXIEMAC_BASEADDR)
+# define CONFIG_XILINX_AXIEMAC 1
+# define CONFIG_SYS_ENET
#endif
#undef ET_DEBUG
--
1.5.5.6
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