diff --git a/ChangeLog b/ChangeLog
index 025eb8d9e3..f891c48fa0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -604,4 +604,6 @@
* Fixed several compilation errors in fixed precision math library when built
against toolchains that do not support 64-bit type 'long long'.
* Fix errors in some function prototypes in dirent.h
+ * Add eZ80F91 EMAC driver
+ * Fix recvfrom() compilation error -- only noted under ZDS
diff --git a/Documentation/NuttX.html b/Documentation/NuttX.html
index 8f816601ad..bb3284f603 100644
--- a/Documentation/NuttX.html
+++ b/Documentation/NuttX.html
@@ -8,7 +8,7 @@
NuttX RTOS
-
Last Updated: December 7 2008
+
Last Updated: December 12, 2008
@@ -1292,6 +1292,8 @@ nuttx-0.4.1 2008-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
* Fixed several compilation errors in fixed precision math library when built
against toolchains that do not support 64-bit type 'long long'.
* Fix errors in some function prototypes in dirent.h
+ * Add eZ80F91 EMAC driver
+ * Fix recvfrom() compilation error -- only noted under ZDS
pascal-0.1.3 2008-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
diff --git a/arch/z80/src/common/up_internal.h b/arch/z80/src/common/up_internal.h
index d359b25edf..cb1a4d2b01 100644
--- a/arch/z80/src/common/up_internal.h
+++ b/arch/z80/src/common/up_internal.h
@@ -165,9 +165,17 @@ EXTERN void up_timerhook(void);
/* Defined in board/up_network.c */
#ifdef CONFIG_NET
-EXTERN void up_netinitialize(void);
+EXTERN int up_netinitialize(void);
+EXTERN void up_netuninitialize(void);
+# ifdef CONFIG_ARCH_MCFILTER
+EXTERN int up_multicastfilter(FAR struct uip_driver_s *dev, FAR ubyte *mac, boolean enable);
+# else
+# define up_multicastfilter(dev, mac, enable)
+# endif
#else
# define up_netinitialize()
+# define up_netuninitialize()
+# define up_multicastfilter(dev, mac, enable)
#endif
/* Return the current value of the stack pointer (used in stack dump logic) */
diff --git a/arch/z80/src/ez80/Make.defs b/arch/z80/src/ez80/Make.defs
index 9273735e12..5d8153da56 100644
--- a/arch/z80/src/ez80/Make.defs
+++ b/arch/z80/src/ez80/Make.defs
@@ -48,7 +48,13 @@ CHIP_ASRCS = ez80_startup.asm ez80_io.asm ez80_irqsave.asm \
ifeq ($(CONFIG_ARCH_CHIP_EZ80F91),y)
CHIP_ASRCS += ez80f91_init.asm
endif
+
CHIP_SSRCS =
CHIP_CSRCS = ez80_initialstate.c ez80_irq.c ez80_copystate.c \
ez80_schedulesigaction.c ez80_sigdeliver.c ez80_timerisr.c \
ez80_lowuart.c ez80_serial.c ez80_registerdump.c
+ifeq ($(CONFIG_ARCH_CHIP_EZ80F91),y)
+ifeq ($(CONFIG_EZ80_EMAC),y)
+CHIP_CSRCS += ez80_emac.c
+endif
+endif
diff --git a/arch/z80/src/ez80/ez80_emac.c b/arch/z80/src/ez80/ez80_emac.c
new file mode 100644
index 0000000000..42430be8fd
--- /dev/null
+++ b/arch/z80/src/ez80/ez80_emac.c
@@ -0,0 +1,1803 @@
+/****************************************************************************
+ * drivers/net/ez80_emac.c
+ *
+ * Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt
+ *
+ * References:
+ * eZ80F91 MCU Product Specification, PS019214-0808, Zilig, Inc., 2008.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include
+#if defined(CONFIG_NET) && defined(CONFIG_EZ80_EMAC)
+
+#include
+#include
+#include
+#include
+#include
+
+#include
+#include
+#include
+
+#include
+
+#include
+#include
+#include
+
+#include "chip.h"
+#include "up_internal.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+#if CONFIG_NET_BUFSIZE > 1518
+# error "MAXF size too big for this device"
+#endif
+
+/* The memory region shared between this driver and the EMAC hardware
+ * is subdivided into a Transmit buffer and the Receive buffer.
+ * The Transmit and Receive buffers are subdivided into packet buffers
+ * of 32, 64, 128, or 256 bytes in size.
+ */
+
+#ifndef CONFIG_EZ80_PKTBUFSIZE
+# define CONFIG_EZ80_PKTBUFSIZE 64
+#endif
+
+#ifndef CONFIG_EZ80_NTXPKTBUFS
+# define CONFIG_EZ80_NTXPKTBUFS 64
+#endif
+
+#ifndef CONFIG_EZ80_NRXPKTBUFS
+# define CONFIG_EZ80_NRXPKTBUFS 64
+#endif
+
+#define EMAC_TXBUFSIZE (CONFIG_EZ80_PKTBUFSIZE * CONFIG_EZ80_NTXPKTBUFS)
+#if EMAC_TXBUFSIZE > 8192
+# error "Too many TX buffers"
+#endif
+
+#define EMAC_RXBUFSIZE (CONFIG_EZ80_PKTBUFSIZE * CONFIG_EZ80_NRXPKTBUFS)
+#if EMAC_RXBUFSIZE > 8192
+# error "Too many TX buffers"
+#endif
+
+#define EMAC_TOTAL_BUFSIZE (EMAC_TXBUFSIZE + EMAC_RXBUFSIZE)
+#if EMAC_TOTAL_BUFSIZE > 8192
+# error "Too many TX+RX buffers"
+#elif EMAC_TOTAL_BUFSIZE < 8192
+# error "Unused buffers!"
+#endif
+
+#if CONFIG_EZ80_PKTBUFSIZE == 256
+# define EMAC_BUFSZ EMAC_BUFSZ_256b
+#elif CONFIG_EZ80_PKTBUFSIZE == 128
+# define EMAC_BUFSZ EMAC_BUFSZ_128b
+#elif CONFIG_EZ80_PKTBUFSIZE == 64
+# define EMAC_BUFSZ EMAC_BUFSZ_64b
+#elif CONFIG_EZ80_PKTBUFSIZE == 32
+# define EMAC_BUFSZ EMAC_BUFSZ_32b
+#else
+# error "Unsupported CONFIG_EZ80_PKTBUFSIZE value"
+#endif
+
+/* The system clock frequency is defined in the linkcmd file */
+
+extern unsigned long SYS_CLK_FREQ;
+#define _DEFCLK ((unsigned long)&SYS_CLK_FREQ)
+
+/* Select the fastest MDC clock that does not exceed 25MHz. The MDC
+ * clock derives from the SCLK divided by 4, 6, 8, 10, 14, 20, or 28.
+ */
+
+#ifndef CONFIG_EZ80_MDCDIV
+# define CONFIG_EZ80_MDCDIV EMAC_MDC_DIV4
+#endif
+
+/* Select the Tx poll timer. If not specified, a 10MS timer is set */
+
+#ifndef CONFIG_EZ80_TXPOLLTIMERMS
+# define CONFIG_EZ80_TXPOLLTIMERMS 10
+#endif
+
+/* Misc. timing values and settings */
+
+#define EMAC_MXPOLLLOOPS 100000
+#define EMAC_CRCPOLY2 0xedb88320;
+
+/* Default register settings */
+
+#define EMAC_TPTV 0x1000 /* TPTV: Default 0x1000 slot time (1slot:512bit) */
+#define EMAC_IPGT 0x12 /* IPGT: Back-to-back IPG default value */
+#define EMAC_IPGR1 0x0c /* IPGR1: Non-back-to-back IPG default value */
+#define EMAC_IPGR2 0x12 /* IPGR2: Non-back-to-back IPG default value */
+#define EMAC_MAXF CONFIG_NET_BUFSIZE /* Maximum packet length value */
+#define EMAC_LCOL 0x37 /* CFG2: Late collision window default value */
+#define EMAC_RETRY 0x0f /* CFG3: Maximum number of retry default value */
+
+/* Poll timer setting. The transmit poll timer is set in increments of
+ * SYSCLCK / 256
+ */
+
+#define EMAC_PTMR ((CONFIG_EZ80_TXPOLLTIMERMS * (_DEFCLK / 1000) >> 8))
+
+ /* EMAC system interrupts :
+ *
+ * EMAC_ISTAT_TXFSMERR - Bit 7: 1=Transmit state machine error interrupt
+ * A Transmit State Machine Error should never occur. However, if this
+ * bit is set, the entire transmitter module must be reset.
+ * EMAC_ISTAT_MGTDONE - Bit 6: 1=MII Mgmt done interrupt
+ * This bit is set when communicating to the PHY over the MII during
+ * a Read or Write operation.
+ * EMAC_ISTAT_RXOVR - Bit 2: 1=Receive overrun interrupt
+ * If this bit is set, all incoming packets are ignored until
+ * this bit is cleared by software.
+ */
+
+#define EMAC_ISTAT_SYSEVENTS (EMAC_ISTAT_TXFSMERR|EMAC_ISTAT_MGTDONE|EMAC_ISTAT_RXOVR)
+
+ /* EMAC Tx interrupts:
+ *
+ * EMAC_ISTAT_TXDONE - Bit 0: 1=Transmit done interrupt
+ * Denotes when packet transmission is complete.
+ * EMAC_ISTAT_TXCF - Bit 1: 1=Transmit control frame interrupt
+ * Denotes when control frame transmission is complete.
+ */
+
+#define EMAC_ISTAT_TXEVENTS (EMAC_ISTAT_TXDONE|EMAC_ISTAT_TXCF)
+
+ /* EMAC Rx interrupts:
+ *
+ * EMAC_ISTAT_RXDONE - Bit 3: 1=Receive done interrupt
+ * Denotes when packet reception is complete.
+ * EMAC_ISTAT_RXPCF - Bit 4: 1=Receive pause control frame interrupt
+ * Denotes when pause control frame reception is complete.
+ * EMAC_ISTAT_RXCF - Bit 5: 1=Receive control frame interrupt
+ * Denotes when control frame reception is complete.
+ */
+
+#define EMAC_ISTAT_RXEVENTS (EMAC_ISTAT_RXDONE|EMAC_ISTAT_RXPCF|EMAC_ISTAT_RXCF)
+#define EMAC_EIN_HANDLED (EMAC_ISTAT_RXEVENTS|EMAC_ISTAT_TXEVENTS|EMAC_ISTAT_SYSEVENTS)
+
+/* TX poll deley = 1 seconds. CLK_TCK is the number of clock ticks per second */
+
+#define EMAC_WDDELAY (1*CLK_TCK)
+#define EMAC_POLLHSEC (1*2)
+
+/* TX timeout = 1 minute */
+
+#define EMAC_TXTIMEOUT (60*CLK_TCK)
+
+/* This is a helper pointer for accessing the contents of the Ethernet header */
+
+#define ETHBUF ((struct uip_eth_hdr *)priv->dev.d_buf)
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/* EMAC statistics (debug only) */
+
+#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_NET)
+struct ez80mac_statistics_s
+{
+ uint32 rx_int; /* Number of Rx interrupts received */
+ uint32 rx_ip; /* Number of Rx IP packets received */
+ uint32 rx_arp; /* Number of Rx ARP packets received */
+ uint32 rx_dropped; /* Number of dropped, unsupported Rx packets */
+ uint32 rx_errors; /* Number of Rx errors (all types) */
+ uint32 rx_ovrerrors; /* Number of FIFO overrun errors */
+ uint32 tx_queued; /* Number of Tx descriptors queued */
+ uint32 tx_int; /* Number of Tx interrupts received */
+ uint32 tx_errors; /* Number of Tx errors (all types) */
+ uint32 tx_abterrors; /* Number of aborted Tx descriptors */
+ uint32 tx_fsmerrors; /* Number of Tx state machine errors */
+ uint32 tx_timeouts; /* Number of Tx timeout errors */
+ uint32 sys_int; /* Number of system interrupts received */
+};
+# define EMAC_STAT(priv,name) (((priv)->stat.(name))++)
+#else
+# define EMAC_STAT(priv,name)
+#endif
+
+/* Private driver data. The ez80emac_driver_s encapsulates all state information
+ * for a single hardware interface
+ */
+
+struct ez80emac_driver_s
+{
+ /* Tx buffer management
+ *
+ * txstart: The beginning of the Rx descriptor list (and also the beginning of
+ * Tx/Rx memory).
+ * txhead: Points to the oldest Tx descriptor queued for output (but for
+ * which output has not yet completed. Initialized to NULL; set
+ * by ez80emac_transmit() when Tx is started and by ez80emac_reclaimtxdesc()
+ * when Tx processing completes. txhead == NULL is also a sure
+ * indication that there is no Tx in progress.
+ * txtail: Points to the last Tx descriptor queued for output. Initialized
+ * to NULL. Set by ez80emac_transmit() when a new Tx descriptor is added.
+ * txnext: Points to the next free Tx descriptor. Initialized to txstart; set
+ * when ez80emac_transmit() adds the descriptor; reset to txstart when the
+ * last Tx packet is sent.
+ */
+
+ FAR struct ez80emac_desc_s *txstart;
+ FAR struct ez80emac_desc_s *txhead;
+ FAR struct ez80emac_desc_s *txtail;
+ FAR struct ez80emac_desc_s *txnext;
+
+ /* Rx buffer management
+ *
+ * rxstart: The beginning of the Rx descriptor list (and also the end of
+ * Tx buffer + 1).
+ * rxnext: The next of Rx descriptor available for receipt of a packet.
+ * Initialized to rxstart; rxnext is incremented by rmac_rxinterrupt()
+ * as part of Rx interrupt processing. rxnext wraps back to rxstart
+ * when rxnext exceeds rxendp1.
+ * rxendp1: The end of the Rx descriptor list + 1.
+ */
+
+ FAR struct ez80emac_desc_s *rxstart;
+ FAR struct ez80emac_desc_s *rxnext;
+ FAR struct ez80emac_desc_s *rxendp1;
+
+ boolean bifup; /* TRUE:ifup FALSE:ifdown */
+ boolean blinkok; /* TRUE:successful MII autonegotiation */
+ boolean bfullduplex; /* TRUE:full duplex */
+ boolean b100mbs; /* TRUE:100Mbp */
+
+ WDOG_ID txpoll; /* TX poll timer */
+ WDOG_ID txtimeout; /* TX timeout timer */
+
+#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_NET)
+ struct ez80mac_statistics_s stat;
+#endif
+
+ /* This holds the information visible to uIP/NuttX */
+
+ struct uip_driver_s dev; /* Interface understood by uIP */
+};
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/* There is only a single instance of driver private data (because there is
+ * only one EMAC interface.
+ */
+
+static struct ez80emac_driver_s g_emac;
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/* MII logic */
+
+static void ez80emac_miiwrite(FAR struct ez80emac_driver_s *priv, ubyte offset,
+ uint16 value);
+static uint16 ez80emac_miiread(FAR struct ez80emac_driver_s *priv, uint32 offset);
+static boolean ez80emac_miipoll(FAR struct ez80emac_driver_s *priv, uint32 offset,
+ uint16 bits, boolean bclear);
+static void ez80emac_miiautonegotiate(FAR struct ez80emac_driver_s *priv);
+
+/* Multi-cast filtering */
+
+#ifdef CONFIG_EZ80_MCFILTER
+static void ez80emac_machash(FAR ubyte *mac, int *ndx, int *bitno)
+#endif
+
+/* Common TX logic */
+
+static int ez80emac_transmit(struct ez80emac_driver_s *priv);
+static int ez80emac_uiptxpoll(struct uip_driver_s *dev);
+
+/* Interrupt handling */
+
+static int ez80emac_txinterrupt(int irq, FAR void *context);
+static int ez80emac_rxinterrupt(int irq, FAR void *context);
+static int ez80emac_sysinterrupt(int irq, FAR void *context);
+
+/* Watchdog timer expirations */
+
+static void ez80emac_polltimer(int argc, uint32 arg, ...);
+static void ez80emac_txtimeout(int argc, uint32 arg, ...);
+
+/* NuttX callback functions */
+
+static int ez80emac_ifup(struct uip_driver_s *dev);
+static int ez80emac_ifdown(struct uip_driver_s *dev);
+static int ez80emac_txavail(struct uip_driver_s *dev);
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Function: ez80emac_miiwrite
+ *
+ * Description:
+ * Write a signel MII register
+ *
+ * Parameters:
+ * priv - Reference to the driver state structure
+ * offset - Register offset in PMD
+ * value - Value to write
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+static void ez80emac_miiwrite(FAR struct ez80emac_driver_s *priv, ubyte offset, uint16 value)
+{
+ ubyte regval;
+
+ /* Wait for MII management operation to complete */
+
+ while (inp(EZ80_EMAC_MIISTAT) & EMAC_MIISTAT_BUSY);
+
+ /* Set up PHY addressing */
+
+ outp(EZ80_EMAC_FIAD, CONFIG_EZ80_FIAD & EMAC_FIAD_MASK);
+ outp(EZ80_EMAC_RGAD, offset & EMAC_RGAD_MASK);
+
+ /* Write the control data */
+
+ outp(EZ80_EMAC_CTLD_H, value >> 8);
+ outp(EZ80_EMAC_CTLD_L, value & 0xff);
+
+ /* Send control data to PHY */
+
+ regval = inp(EZ80_EMAC_MIIMGT);
+ regval |= EMAC_MIIMGMT_LCTLD;
+ outp(EZ80_EMAC_MIIMGT, regval);
+}
+
+/****************************************************************************
+ * Function: ez80emac_miiread
+ *
+ * Description:
+ * Read a single MII register
+ *
+ * Parameters:
+ * priv - Reference to the driver state structure
+ * offset - Register offset in PMD
+ *
+ * Returned Value:
+ * Value read from the register
+ *
+ ****************************************************************************/
+
+static uint16 ez80emac_miiread(FAR struct ez80emac_driver_s *priv, uint32 offset)
+{
+ ubyte regval;
+
+ /* Wait for MII management operation to complete */
+
+ while (inp(EZ80_EMAC_MIISTAT) & EMAC_MIISTAT_BUSY);
+
+ /* Set up PHY addressing */
+
+ outp(EZ80_EMAC_FIAD, CONFIG_EZ80_FIAD & EMAC_FIAD_MASK);
+ outp(EZ80_EMAC_RGAD, offset & EMAC_RGAD_MASK);
+
+ /* Read status from PHY */
+
+ regval = inp(EZ80_EMAC_MIIMGT);
+ regval |= EMAC_MIIMGMT_RSTAT;
+ outp(EZ80_EMAC_MIIMGT, regval);
+
+ /* Wait for MII management operation to complete */
+
+ while (inp(EZ80_EMAC_MIISTAT) & EMAC_MIISTAT_BUSY);
+ return ((uint16)inp(EZ80_EMAC_PRSD_H) << 8 | inp(EZ80_EMAC_PRSD_L));
+}
+
+/****************************************************************************
+ * Function: ez80emac_miipoll
+ *
+ * Description:
+ * Read an MII register until the bit has the specified polarity (or until
+ * the maximum number of retries occurs
+ *
+ * Parameters:
+ * priv - Reference to the driver state structure
+ * offset - Register offset in PMD
+ * bits - Selects set of bits to wait for
+ * bclear - TRUE:Return true when all bits in 'bits' are 0
+ * FALSE:Return true when one or more bits in 'bits' are 1
+ *
+ * Returned Value:
+ * TRUE:Bit has requested polarity; FALSE: EMAC_MXPOLLLOOPS exceeded
+ *
+ ****************************************************************************/
+
+static boolean ez80emac_miipoll(FAR struct ez80emac_driver_s *priv, uint32 offset,
+ uint16 bits, boolean bclear)
+{
+ uint16 value;
+ int i;
+
+ for (i = 0; i < EMAC_MXPOLLLOOPS; i++)
+ {
+ value = ez80emac_miiread(priv, offset);
+ if (bclear)
+ {
+ if ((value & bits) == 0)
+ {
+ return TRUE;
+ }
+ }
+ else
+ {
+ if ((value & bits) != 0)
+ {
+ return TRUE;
+ }
+ }
+ }
+ return FALSE;
+}
+
+/****************************************************************************
+ * Function: ez80emac_miiautonegotiate
+ *
+ * Description:
+ * Dump all MII registers
+ *
+ * Parameters:
+ * priv - Reference to the driver state structure
+ * offset - Register offset in PMD
+ * bits - Selects set of bits to wait for
+ * bclear - TRUE:Return true when all bits in 'bits' are 0
+ * FALSE:Return true when one or more bits in 'bits' are 1
+ *
+ * Returned Value:
+ * TRUE:Bit has requested polarity; FALSE: EMAC_MXPOLLLOOPS exceeded
+ *
+ ****************************************************************************/
+
+static void ez80emac_miiautonegotiate(FAR struct ez80emac_driver_s *priv)
+{
+ uint16 advertise;
+ uint16 lpa;
+ uint16 mcr;
+ ubyte regval;
+
+ /* Start auto-negotiation */
+
+ ez80emac_miiwrite(priv, MII_MCR, 0);
+ ez80emac_miiwrite(priv,
+ MII_MCR,
+ MII_MCR_ANENABLE | MII_MCR_ANRESTART | MII_MCR_FULLDPLX | MII_MCR_SPEED100);
+
+ /* Wait for auto-negotiation to start */
+
+ if (!ez80emac_miipoll(priv, MII_MCR, MII_MCR_ANRESTART, FALSE))
+ {
+ ndbg("Autonegotiation didn't start.\n");
+ }
+
+ /* Wait for auto-negotiation to complete */
+
+ if (!ez80emac_miipoll(priv, MII_MSR, MII_MSR_ANEGCOMPLETE, TRUE))
+ {
+ ndbg("Autonegotiation didn't complete.\n");
+ }
+
+ /* Wait link */
+
+ if (!ez80emac_miipoll(priv, MII_MSR, MII_MSR_LINKSTATUS, TRUE))
+ {
+ ndbg("Link is down!\n");
+ priv->blinkok = FALSE;
+ }
+ else
+ {
+ priv->blinkok = TRUE;
+ }
+
+ /* Read capable media type */
+
+ up_udelay(500);
+ advertise = ez80emac_miiread(priv, MII_ADVERTISE);
+ lpa = ez80emac_miiread(priv, MII_LPA);
+
+ /* Check for 100BASETX full duplex */
+
+ if ((advertise & MII_ADVERTISE_100BASETXFULL) && (lpa & MII_LPA_100BASETXFULL))
+ {
+ ndbg("100BASETX full duplex\n");
+ regval = inp(EZ80_EMAC_CFG1);
+ regval |= EMAC_CFG1_FULLHD; /* Enable full duplex mode */
+ outp(EZ80_EMAC_CFG1, regval);
+ priv->b100mbs = TRUE;
+ priv->bfullduplex = TRUE;
+ }
+
+ /* Check for 100BASETX half duplex */
+
+ else if ((advertise & MII_ADVERTISE_100BASETXHALF) && (lpa & MII_LPA_100BASETXHALF))
+ {
+ ndbg("100BASETX half duplex\n");
+ regval = inp(EZ80_EMAC_CFG1);
+ regval &= ~EMAC_CFG1_FULLHD; /* Disable full duplex mode */
+ outp(EZ80_EMAC_CFG1, regval);
+ priv->b100mbs = TRUE;
+ priv->bfullduplex = FALSE;
+ }
+
+ /* Check for 10BASETX full duplex */
+
+ else if ((advertise & MII_ADVERTISE_10BASETXFULL) && (lpa & MII_LPA_10BASETXFULL))
+ {
+ ndbg("10BASETX full duplex\n");
+ regval = inp(EZ80_EMAC_CFG1);
+ regval |= EMAC_CFG1_FULLHD; /* Enable full duplex mode */
+ outp(EZ80_EMAC_CFG1, regval);
+ priv->b100mbs = FALSE;
+ priv->bfullduplex = TRUE;
+ }
+
+ /* Check for 10BASETX half duplex */
+
+ else if ((advertise & MII_ADVERTISE_10BASETXHALF) && (lpa & MII_LPA_10BASETXHALF))
+ {
+ ndbg("10BASETX half duplex\n");
+ regval = inp(EZ80_EMAC_CFG1);
+ regval &= ~EMAC_CFG1_FULLHD; /* Disable full duplex mode */
+ outp(EZ80_EMAC_CFG1, regval);
+ priv->b100mbs = FALSE;
+ priv->bfullduplex = FALSE;
+ }
+ else
+ {
+ ndbg("No valid connection; force 10Mbps half-duplex.\n");
+ regval = inp(EZ80_EMAC_CFG1);
+ regval &= ~EMAC_CFG1_FULLHD; /* Disable full duplex mode */
+ outp(EZ80_EMAC_CFG1, regval);
+ priv->b100mbs = FALSE;
+ priv->bfullduplex = FALSE;
+ }
+
+ /* set MII control */
+
+ mcr = ez80emac_miiread(priv, MII_MCR);
+ if (priv->bfullduplex)
+ {
+ mcr |= MII_MCR_FULLDPLX;
+ }
+ else
+ {
+ mcr &= ~MII_MCR_FULLDPLX;
+ }
+ if (priv->b100mbs)
+ {
+ mcr |= MII_MCR_SPEED100;
+ }
+ else
+ {
+ mcr &= ~MII_MCR_SPEED100;
+ }
+ mcr |= MII_MCR_ANENABLE;
+ ez80emac_miiwrite(priv, MII_MCR, mcr);
+
+ nvdbg("MII registers (FIAD=%lx)\n", CONFIG_EZ80_FIAD);
+ nvdbg(" %-10s: %04x\n", "MII_MCR", ez80emac_miiread(priv, MII_MCR));
+ nvdbg(" %-10s: %04x\n", "MII_MSR", ez80emac_miiread(priv, MII_MSR));
+ nvdbg(" %-10s: %04x\n", "MII_PHYID1", ez80emac_miiread(priv, MII_PHYID1));
+ nvdbg(" %-10s: %04x\n", "MII_PHYID2", ez80emac_miiread(priv, MII_PHYID2));
+ nvdbg(" %-10s: %04x\n", "MII_ADVERTISE", ez80emac_miiread(priv, MII_ADVERTISE));
+ nvdbg(" %-10s: %04x\n", "MII_LPA", ez80emac_miiread(priv, MII_LPA));
+ nvdbg(" %-10s: %04x\n", "MII_EXPANSION", ez80emac_miiread(priv, MII_EXPANSION));
+ nvdbg(" %-10s: %04x\n", "MII_LBRERROR", ez80emac_miiread(priv, MII_LBRERROR));
+ nvdbg(" %-10s: %04x\n", "MII_PHYADDR", ez80emac_miiread(priv, MII_PHYADDR));
+}
+
+/****************************************************************************
+ * Function: ez80emac_machash
+ *
+ * Description:
+ * Given a MAC address, perform the CRC32 calculation and return the
+ * index and bit number for the multi-cast hash table.
+ *
+ * Parameters:
+ * priv - Reference to the driver state structure
+ * mac - The MAC address to add
+ * enable - TRUE: Enable filtering on this address; FALSE: disable
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_EZ80_MCFILTER
+static void ez80emac_machash(FAR ubyte *mac, int *ndx, int *bitno)
+{
+ uint32 hash;
+ uint32 crc32;
+ int i;
+ int j;
+
+ /* Calculate the CRC32 value on the MAC address */
+
+ crc32 = 0xffffffff;
+ for (i = 0; i < 6; i++)
+ {
+ crc32 ^= (uint32)mac[i] & 0x0f;
+ for (j = 0; j < 4; j++)
+ {
+ if (crc32 & 1)
+ {
+ crc32 = (crc32 >> 1) ^ EMAC_CRCPOLY2;
+ }
+ else
+ {
+ crc32 >>= 1;
+ }
+ }
+
+ crc32 ^= (uint32)mac[i] >> 4;
+ for (j = 0; j < 4; j++)
+ {
+ if (crc32 & 1)
+ {
+ crc32 = (crc32 >> 1) ^ EMAC_CRCPOLY2;
+ }
+ else
+ {
+ crc32 >>= 1;
+ }
+ }
+ }
+
+ /* The normal CRC result would be the complement of crc32,
+ * the following calculates the EMAC hash value
+ *
+ * This loop changes the bit ordering the for bits [23:28] of
+ * the CRC32 value to -> [0:5]
+ */
+
+ crc32 &= 0x000001f8;
+ hash = 0;
+
+ for (j = 31; j >= 23; j--)
+ {
+ hash = (hash << 1) + (crc32 & 1);
+ crc32 >>= 1;
+ }
+
+ *ndx = (hash >> 3) & 7;
+ *bitno = hash & 7;
+}
+#endif
+
+/****************************************************************************
+ * Function: ez80emac_transmit
+ *
+ * Description:
+ * Start hardware transmission. Called either from the txdone interrupt
+ * handling or from watchdog based polling.
+ *
+ * Parameters:
+ * priv - Reference to the driver state structure
+ *
+ * Returned Value:
+ * OK on success; a negated errno on failure
+ *
+ * Assumptions:
+ *
+ ****************************************************************************/
+
+static int ez80emac_transmit(struct ez80emac_driver_s *priv)
+{
+ FAR struct ez80emac_desc_s *txdesc;
+ irqstate_t flags;
+ ubyte regval;
+
+ /* Increment statistics */
+
+ EMAC_STAT(priv, tx_queued);
+
+ /* Copy the data to the next packet in the Tx buffer */
+
+ flags = irqsave();
+ txdesc = priv->txnext;
+ txdesc->np = 0;
+ txdesc->pktsize = priv->dev.d_len;
+ txdesc->stat = 0;
+ memcpy((ubyte*)txdesc + SIZEOF_EMACSDESC, priv->dev.d_buf, priv->dev.d_len);
+
+ /* Add the new Tx descriptor to the tail of the chain. Is there a
+ * descriptor queued before this one?
+ */
+
+ if (priv->txtail)
+ {
+ /* Yes, link it to this one */
+
+ priv->txtail->np = (uint24)txdesc;
+ }
+ else
+ {
+ /* No.. then there are no pending Tx actions. This
+ * descriptor is both the new head and tail.
+ */
+
+ priv->txhead = txdesc;
+ }
+
+ /* In any event, this descriptor is the new tail */
+
+ priv->txtail = txdesc;
+
+ /* Caculate the address of the next, available Tx descriptor.
+ * Hmmm... need some way to determine if the next descriptor
+ * is in use or not.
+ */
+
+ priv->txnext = (FAR struct ez80emac_desc_s *)
+ ((FAR ubyte*)txdesc + txdesc->pktsize + SIZEOF_EMACSDESC);
+ if (priv->txnext >= priv->rxstart)
+ {
+ priv->txnext = priv->txstart;
+ }
+
+ /* Setup the new 'next' Tx descriptor (very dangerous with
+ * no check for overrun!)
+ */
+
+ priv->txnext->np = 0;
+ priv->txnext->pktsize = 0;
+ priv->txnext->stat = 0;
+
+ /* Then, give ownership of the descriptor to the hardware. It should
+ * perform the transmission on its next polling cycle.
+ */
+
+ txdesc->np = (uint24)priv->txnext;
+ txdesc->stat = EMAC_TXDESC_OWNER;
+ irqrestore(flags);
+
+ /* Setup the TX timeout watchdog (perhaps restarting the timer) */
+
+ (void)wd_start(priv->txtimeout, EMAC_TXTIMEOUT, ez80emac_txtimeout, 1, (uint32)priv);
+ return OK;
+}
+
+/****************************************************************************
+ * Function: ez80emac_uiptxpoll
+ *
+ * Description:
+ * The transmitter is available, check if uIP has any outgoing packets ready
+ * to send. This is a callback from uip_poll(). uip_poll() may be called:
+ *
+ * 1. When the preceding TX packet send is complete,
+ * 2. When the preceding TX packet send timesout and the interface is reset
+ * 3. During normal TX polling
+ *
+ * Parameters:
+ * dev - Reference to the NuttX driver state structure
+ *
+ * Returned Value:
+ * OK on success; a negated errno on failure
+ *
+ * Assumptions:
+ *
+ ****************************************************************************/
+
+static int ez80emac_uiptxpoll(struct uip_driver_s *dev)
+{
+ struct ez80emac_driver_s *priv = (struct ez80emac_driver_s *)dev->d_private;
+
+ /* If the polling resulted in data that should be sent out on the network,
+ * the field d_len is set to a value > 0.
+ */
+
+ if (priv->dev.d_len > 0)
+ {
+ uip_arp_out(&priv->dev);
+ ez80emac_transmit(priv);
+
+ /* Check if there is room in the DM90x0 to hold another packet. If not,
+ * return a non-zero value to terminate the poll.
+ */
+ }
+
+ /* If zero is returned, the polling will continue until all connections have
+ * been examined.
+ */
+
+ return 0;
+}
+
+/****************************************************************************
+ * Function: ez80emac_txinterrupt
+ *
+ * Description:
+ * Process Rx-related interrupt events
+ *
+ * Parameters:
+ * priv - Driver data instance
+ * istat - Snapshot of ISTAT register containing Rx events to provess
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+static int ez80emac_txinterrupt(int irq, FAR void *context)
+{
+ FAR struct ez80emac_driver_s *priv = &g_emac;
+ FAR struct ez80emac_desc_s *txdesc = priv->txhead;
+ ubyte regval;
+ ubyte istat;
+
+ /* EMAC Tx interrupts:
+ *
+ * EMAC_ISTAT_TXDONE - Bit 0: 1=Transmit done interrupt
+ * Denotes when packet transmission is complete.
+ * EMAC_ISTAT_TXCF - Bit 1: 1=Transmit control frame interrupt
+ * Denotes when control frame transmission is complete.
+ */
+
+ /* Get and clear Tx interrupt status bits */
+
+ istat = inp(EZ80_EMAC_ISTAT) & EMAC_ISTAT_TXEVENTS;
+ outp(EZ80_EMAC_ISTAT, istat);
+
+ /* All events are packet/control frame transmit complete events */
+
+ nvdbg("txhead=%p {%06x, %u, %04x} trp=%02x%02x istat=%02x\n",
+ txdesc, txdesc->np, txdesc->pktsize, txdesc->stat,
+ inp(EZ80_EMAC_TRP_H), inp(EZ80_EMAC_TRP_L), istat);
+
+ EMAC_STAT(priv, tx_int);
+
+ /* Check if the packet is still owned by the hardware */
+
+ if ((txdesc->stat & EMAC_TXDESC_OWNER) != 0)
+ {
+ ndbg("Descriptor %p still owned by H/W {%06x, %u, %04x} trp=%02x%02x istat=%02x\n",
+ txdesc, txdesc->np, txdesc->pktsize, txdesc->stat,
+ inp(EZ80_EMAC_TRP_H), inp(EZ80_EMAC_TRP_L), istat);
+ return OK;
+ }
+
+ /* Handle errors */
+
+ else if ((txdesc->stat & EMAC_TXDESC_ABORT) != 0)
+ {
+ ndbg("Descriptor %p aborted {%06x, %u, %04x} trp=%02x%02x istat=%02x\n",
+ txdesc, txdesc->np, txdesc->pktsize, txdesc->stat,
+ inp(EZ80_EMAC_TRP_H), inp(EZ80_EMAC_TRP_L), istat);
+
+ EMAC_STAT(priv, tx_errors);
+ EMAC_STAT(priv, tx_abterrors);
+ }
+
+ /* Get the address of the next Tx descriptor in the list (if any) */
+
+ priv->txhead = (FAR struct ez80emac_desc_s *)txdesc->np;
+ if (!priv->txhead)
+ {
+ /* If there is no new head, then there is no tail either */
+
+ priv->txnext = priv->txstart;
+ priv->txtail = NULL;
+
+ /* Reset the transmit function. That should force the TRP to be
+ * the same as TDLP which is the set to txstart.
+ */
+
+ regval = inp(EZ80_EMAC_RST);
+ regval |= EMAC_RST_HRTFN;
+ outp(EZ80_EMAC_RST, regval);
+ regval &= ~EMAC_RST_HRTFN;
+ outp(EZ80_EMAC_RST, regval);
+
+ /* If no further xmits are pending, then cancel the TX timeout */
+
+ wd_cancel(priv->txtimeout);
+ }
+
+ /* Clean up the old Tx descriptor -- not really necessary */
+
+ txdesc->np = 0;
+ txdesc->pktsize = 0;
+ txdesc->stat = 0;
+
+ nvdbg("New txhead=%p {%06x, %u, %04x} trp=%02x%02x istat=%02x\n",
+ priv->txhead, priv->txhead->np, priv->txhead->pktsize, priv->txhead->stat,
+ inp(EZ80_EMAC_TRP_H), inp(EZ80_EMAC_TRP_L), istat);
+ return OK;
+}
+
+/****************************************************************************
+ * Function: ez80emac_rxinterrupt
+ *
+ * Description:
+ * Process Rx-related interrupt events
+ *
+ * Parameters:
+ * priv - Driver data instance
+ * istat - Snapshot of ISTAT register containing Rx events to provess
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+static int ez80emac_rxinterrupt(int irq, FAR void *context)
+{
+ FAR struct ez80emac_driver_s *priv = &g_emac;
+ FAR struct ez80emac_desc_s *rxdesc = priv->rxnext;
+ ubyte istat;
+ int pktlen;
+
+ /* EMAC Rx interrupts:
+ *
+ * EMAC_ISTAT_RXDONE - Bit 3: 1=Receive done interrupt
+ * Denotes when packet reception is complete.
+ * EMAC_ISTAT_RXPCF - Bit 4: 1=Receive pause control frame interrupt
+ * Denotes when pause control frame reception is complete.
+ * EMAC_ISTAT_RXCF - Bit 5: 1=Receive control frame interrupt
+ * Denotes when control frame reception is complete.
+ */
+
+ /* Get and clear Rx interrupt status bits */
+
+ istat = inp(EZ80_EMAC_ISTAT) & EMAC_ISTAT_RXEVENTS;
+ outp(EZ80_EMAC_ISTAT, istat);
+
+ EMAC_STAT(priv, rx_int);
+
+ /* The RRP register points to where the next Receive packet is read from.
+ * The read-only EMAC Receive Write Pointer (RWP) egisters reports the
+ * current RxDMA Receive Write pointer. The RxDMA block uses the RRP[12:5]
+ * to compare to RWP[12:5] for determining how many buffers remain. The
+ * result is the BLKSLFT register.
+ */
+
+ nvdbg("rxnext=%p {%06x, %u, %04x} rrp=%02x%02x rwp=%02%02 blkslft=%02x istat=%02x\n",
+ rxdesc, rxdesc->np, rxdesc->pktsize, rxdesc->stat,
+ inp(EZ80_EMAC_RRP_H), inp(EZ80_EMAC_RRP_L),
+ inp(EZ80_EMAC_RWP_H), inp(EZ80_EMAC_RWP_L),
+ inp(EZ80_EMAC_BLKSLFT_H), inp(EZ80_EMAC_BLKSLFT_L),
+ istat);
+
+ /* The RxDMA reads the data from the RxFIFO and stores it in the EMAC
+ * memory Receive buffer. When the end of the packet is detected, the
+ * RxDMA reads the next two bytes from the RxFIFO and writes them into
+ * the Rx descriptor status LSB and MSB. The packet length counter is
+ * stored into the descriptor table packet length field, the descriptor
+ * table next pointer is written into the Rx descriptor table and finally
+ * the Rx_DONE_STAT bit in the EMAC Interrupt Status Register register is
+ * set to 1.
+ */
+
+ /* Check if this packet was received intact */
+
+ if ((rxdesc->stat & EMAC_RXDESC_OK) == 0)
+ {
+ /* No frame received in this descriptor yet */
+
+ return OK;
+ }
+
+ /* We have a good packet. Check if the packet is a valid size
+ * for the uIP buffer configuration
+ */
+
+ if (rxdesc->pktsize > CONFIG_NET_BUFSIZE)
+ {
+ nvdbg("receive oversize pkt\n");
+ pktlen = CONFIG_NET_BUFSIZE;
+ }
+ else
+ {
+ pktlen = rxdesc->pktsize;
+ }
+
+ /* Copy the data data from the hardware to priv->dev.d_buf. Set
+ * amount of data in priv->dev.d_len
+ */
+
+ memcpy(priv->dev.d_buf, (FAR ubyte*)priv->rxnext + SIZEOF_EMACSDESC, pktlen);
+ priv->dev.d_len = pktlen;
+
+ /* Reclaim the Rx descriptor */
+
+ priv->rxnext = (FAR struct ez80emac_desc_s *)rxdesc->np;
+
+ rxdesc->np = 0;
+ rxdesc->pktsize = 0;
+ rxdesc->stat = 0;
+
+ nvdbg("rxnext=%p {%06x, %u, %04x} rrp=%02x%02x rwp=%02%02 blkslft=%02x istat=%02x\n",
+ rxdesc, rxdesc->np, rxdesc->pktsize, rxdesc->stat,
+ inp(EZ80_EMAC_RRP_H), inp(EZ80_EMAC_RRP_L),
+ inp(EZ80_EMAC_RWP_H), inp(EZ80_EMAC_RWP_L),
+ inp(EZ80_EMAC_BLKSLFT_H), inp(EZ80_EMAC_BLKSLFT_L),
+ istat);
+
+ /* We only accept IP packets of the configured type and ARP packets */
+
+#ifdef CONFIG_NET_IPv6
+ if (ETHBUF->type == HTONS(UIP_ETHTYPE_IP6))
+#else
+ if (ETHBUF->type == HTONS(UIP_ETHTYPE_IP))
+#endif
+ {
+ nvdbg("IP packet received (%02x)\n", ETHBUF->type);
+ EMAC_STAT(priv, rx_ip);
+
+ uip_arp_ipin();
+ uip_input(&priv->dev);
+
+ /* If the above function invocation resulted in data that should be
+ * sent out on the network, the field d_len will set to a value > 0.
+ */
+
+ if (priv->dev.d_len > 0)
+ {
+ uip_arp_out(&priv->dev);
+ ez80emac_transmit(priv);
+ }
+ }
+ else if (ETHBUF->type == htons(UIP_ETHTYPE_ARP))
+ {
+ nvdbg("ARP packet received (%02x)\n", ETHBUF->type);
+ EMAC_STAT(priv, rx_arp);
+
+ uip_arp_arpin(&priv->dev);
+
+ /* If the above function invocation resulted in data that should be
+ * sent out on the network, the field d_len will set to a value > 0.
+ */
+
+ if (priv->dev.d_len > 0)
+ {
+ ez80emac_transmit(priv);
+ }
+ }
+#ifdef CONFIG_DEBUG
+ else
+ {
+ ndbg("Unsupported packet type dropped (%02x)\n", ETHBUF->type);
+ EMAC_STAT(priv, rx_dropped);
+ }
+#endif
+ return OK;
+}
+
+/****************************************************************************
+ * Function: ez80emac_sysinterrupt
+ *
+ * Description:
+ * Hardware interrupt handler
+ *
+ * Parameters:
+ * irq - Number of the IRQ that generated the interrupt
+ * context - Interrupt register state save info (architecture-specific)
+ *
+ * Returned Value:
+ * OK on success
+ *
+ * Assumptions:
+ *
+ ****************************************************************************/
+
+static int ez80emac_sysinterrupt(int irq, FAR void *context)
+{
+ FAR struct ez80emac_driver_s *priv = &g_emac;
+ ubyte events;
+ ubyte istat;
+
+ /* EMAC system interrupts :
+ *
+ * EMAC_ISTAT_TXFSMERR - Bit 7: 1=Transmit state machine error interrupt
+ * A Transmit State Machine Error should never occur. However, if this
+ * bit is set, the entire transmitter module must be reset.
+ * EMAC_ISTAT_MGTDONE - Bit 6: 1=MII Mgmt done interrupt
+ * This bit is set when communicating to the PHY over the MII during
+ * a Read or Write operation.
+ * EMAC_ISTAT_RXOVR - Bit 2: 1=Receive overrun interrupt
+ * If this bit is set, all incoming packets are ignored until
+ * this bit is cleared by software.
+ */
+
+ EMAC_STAT(priv, sys_int);
+
+ /* Get and clear system interrupt status bits */
+
+ istat = inp(EZ80_EMAC_ISTAT) & EMAC_ISTAT_SYSEVENTS;
+ outp(EZ80_EMAC_ISTAT, istat);
+
+ /* Check for transmit state machine error */
+
+ if ((istat & EMAC_ISTAT_TXFSMERR) != 0)
+ {
+ ndbg("Tx FSMERR txhead=%p {%06x, %u, %04x} trp=%02x%02x istat=%02x\n",
+ priv->txhead, priv->txhead->np, priv->txhead->pktsize, priv->txhead->stat,
+ inp(EZ80_EMAC_TRP_H), inp(EZ80_EMAC_TRP_L), istat);
+
+ /* Increment statistics */
+
+ EMAC_STAT(priv, tx_errors);
+ EMAC_STAT(priv, tx_fsmerrors);
+
+ /* Really need to reset the transmitter module here */
+ }
+
+ /* Check for Rx overrun error */
+
+ if ((istat & EMAC_ISTAT_RXOVR) != 0)
+ {
+ ndbg("Rx OVR rxnext=%p {%06x, %u, %04x} rrp=%02x%02x rwp=%02%02 blkslft=%02x istat=%02x\n",
+ priv->rxnext, priv->rxnext->np, priv->rxnext->pktsize, priv->rxnext->stat,
+ inp(EZ80_EMAC_RRP_H), inp(EZ80_EMAC_RRP_L),
+ inp(EZ80_EMAC_RWP_H), inp(EZ80_EMAC_RWP_L),
+ inp(EZ80_EMAC_BLKSLFT_H), inp(EZ80_EMAC_BLKSLFT_L),
+ istat);
+
+ /* Increment statistics */
+
+ EMAC_STAT(priv, rx_errors);
+ EMAC_STAT(priv, rx_ovrerrors);
+ }
+ return OK;
+}
+
+/****************************************************************************
+ * Function: ez80emac_txtimeout
+ *
+ * Description:
+ * Our TX watchdog timed out. Called from the timer interrupt handler.
+ * The last TX never completed. Reset the hardware and start again.
+ *
+ * Parameters:
+ * argc - The number of available arguments
+ * arg - The first argument
+ *
+ * Returned Value:
+ * None
+ *
+ * Assumptions:
+ *
+ ****************************************************************************/
+
+static void ez80emac_txtimeout(int argc, uint32 arg, ...)
+{
+ FAR struct ez80emac_driver_s *priv = (FAR struct ez80emac_driver_s *)arg;
+ irqstate_t flags;
+
+ /* Increment statistics and dump debug info */
+
+ EMAC_STAT(priv, tx_errors);
+ EMAC_STAT(priv, tx_timeouts);
+
+ /* Then reset the hardware */
+
+ flags = irqsave();
+ ez80emac_ifdown(&priv->dev);
+ ez80emac_ifup(&priv->dev);
+ irqrestore(flags);
+
+ /* Then poll uIP for new XMIT data */
+
+ (void)uip_poll(&priv->dev, ez80emac_uiptxpoll);
+}
+
+/****************************************************************************
+ * Function: ez80emac_polltimer
+ *
+ * Description:
+ * Periodic timer handler. Called from the timer interrupt handler.
+ *
+ * Parameters:
+ * argc - The number of available arguments
+ * arg - The first argument
+ *
+ * Returned Value:
+ * None
+ *
+ * Assumptions:
+ *
+ ****************************************************************************/
+
+static void ez80emac_polltimer(int argc, uint32 arg, ...)
+{
+ struct ez80emac_driver_s *priv = (struct ez80emac_driver_s *)arg;
+
+ /* Check if there is room in the send another TXr packet. */
+
+ /* If so, update TCP timing states and poll uIP for new XMIT data */
+
+ (void)uip_timer(&priv->dev, ez80emac_uiptxpoll, EMAC_POLLHSEC);
+
+ /* Setup the watchdog poll timer again */
+
+ (void)wd_start(priv->txpoll, EMAC_WDDELAY, ez80emac_polltimer, 1, arg);
+}
+
+/****************************************************************************
+ * Function: ez80emac_ifup
+ *
+ * Description:
+ * NuttX Callback: Bring up the Ethernet interface when an IP address is
+ * provided
+ *
+ * Parameters:
+ * dev - Reference to the NuttX driver state structure
+ *
+ * Returned Value:
+ * None
+ *
+ * Assumptions:
+ *
+ ****************************************************************************/
+
+static int ez80emac_ifup(FAR struct uip_driver_s *dev)
+{
+ FAR struct ez80emac_driver_s *priv = (FAR struct ez80emac_driver_s *)dev->d_private;
+ ubyte regval;
+
+ ndbg("Bringing up: %d.%d.%d.%d\n",
+ dev->d_ipaddr & 0xff, (dev->d_ipaddr >> 8) & 0xff,
+ (dev->d_ipaddr >> 16) & 0xff, dev->d_ipaddr >> 24 );
+
+ /* Bring up the interface -- Must be down right now */
+
+ DEBUGASSERT((inp(EZ80_EMAC_PTMR) == 0));
+ DEBUGASSERT((inp(EZ80_EMAC_CFG4) & EMAC_CFG4_RXEN) == 0);
+
+ /* Soft reset Rx/Tx */
+
+ regval = inp(EZ80_EMAC_RST);
+ regval |= (EMAC_RST_HRRFN|EMAC_RST_HRTFN);
+ outp(EZ80_EMAC_RST, regval);
+ regval &= ~(EMAC_RST_HRRFN|EMAC_RST_HRTFN);
+ outp(EZ80_EMAC_RST, regval);
+
+ /* EMAC_AFR_BC - Accept broadcast messages
+ * EMAC_AFR_MC - Accept any multicast message
+ * EMAC_AFR_QMC - Accept only qualified multicast messages
+ */
+
+#ifdef CONFIG_EZ80_MCFILTER
+ outp(EZ80_EMAC_AFR, EMAC_AFR_BC|EMAC_AFR_QMC|EMAC_AFR_MC);
+#else
+ outp(EZ80_EMAC_AFR, EMAC_AFR_BC|EMAC_AFR_MC);
+#endif
+
+ /* Set the MAC address */
+
+ outp(EZ80_EMAC_STAD_0, priv->dev.d_mac.ether_addr_octet[0]);
+ outp(EZ80_EMAC_STAD_1, priv->dev.d_mac.ether_addr_octet[1]);
+ outp(EZ80_EMAC_STAD_2, priv->dev.d_mac.ether_addr_octet[2]);
+ outp(EZ80_EMAC_STAD_3, priv->dev.d_mac.ether_addr_octet[3]);
+ outp(EZ80_EMAC_STAD_4, priv->dev.d_mac.ether_addr_octet[4]);
+ outp(EZ80_EMAC_STAD_5, priv->dev.d_mac.ether_addr_octet[5]);
+
+ /* Enable/disable promiscuous mode */
+
+ regval = inp(EZ80_EMAC_AFR);
+#if defined(CONFIG_EZ80_EMACPROMISC)
+ regval |= EMAC_AFR_PROM;
+#else
+ regval &= ~EMAC_AFR_PROM;
+#endif
+ outp(EZ80_EMAC_AFR, regval);
+
+ /* Enable Rx */
+
+ regval = inp(EZ80_EMAC_CFG4);
+ regval |= EMAC_CFG4_RXEN;
+ outp(EZ80_EMAC_CFG4, regval);
+
+ /* Enable the Tx poll timer */
+
+ outp(EZ80_EMAC_PTMR, EMAC_PTMR);
+
+ /* Turn on interrupts */
+
+ outp(EZ80_EMAC_ISTAT, 0xff); /* Clear all pending interrupts */
+ outp(EZ80_EMAC_IEN, EMAC_EIN_HANDLED); /* Enable all interrupts */
+
+ /* Set and activate a timer process */
+
+ (void)wd_start(priv->txpoll, EMAC_WDDELAY, ez80emac_polltimer, 1, (uint32)priv);
+
+ /* Enable the Ethernet interrupt */
+
+ priv->bifup = TRUE;
+ up_enable_irq(EZ80_EMACRX_IRQ);
+ up_enable_irq(EZ80_EMACTX_IRQ);
+ up_enable_irq(EZ80_EMACSYS_IRQ);
+ return OK;
+}
+
+/****************************************************************************
+ * Function: ez80emac_ifdown
+ *
+ * Description:
+ * NuttX Callback: Stop the interface.
+ *
+ * Parameters:
+ * dev - Reference to the NuttX driver state structure
+ *
+ * Returned Value:
+ * None
+ *
+ * Assumptions:
+ *
+ ****************************************************************************/
+
+static int ez80emac_ifdown(struct uip_driver_s *dev)
+{
+ struct ez80emac_driver_s *priv = (struct ez80emac_driver_s *)dev->d_private;
+ irqstate_t flags;
+ ubyte regval;
+
+ /* Disable the Ethernet interrupt */
+
+ flags = irqsave();
+ up_disable_irq(EZ80_EMACRX_IRQ);
+ up_disable_irq(EZ80_EMACTX_IRQ);
+ up_disable_irq(EZ80_EMACSYS_IRQ);
+
+ /* Cancel the TX poll timer and TX timeout timers */
+
+ wd_cancel(priv->txpoll);
+ wd_cancel(priv->txtimeout);
+
+ /* Disable Rx */
+
+ regval = inp(EZ80_EMAC_CFG4);
+ regval &= ~EMAC_CFG4_RXEN;
+ outp(EZ80_EMAC_CFG4, regval);
+
+ /* Disable the Tx poll timer */
+
+ outp(EZ80_EMAC_PTMR, 0);
+
+ priv->bifup = FALSE;
+ irqrestore(flags);
+ return OK;
+}
+
+/****************************************************************************
+ * Function: ez80emac_txavail
+ *
+ * Description:
+ * Driver callback invoked when new TX data is available. This is a
+ * stimulus perform an out-of-cycle poll and, thereby, reduce the TX
+ * latency.
+ *
+ * Parameters:
+ * dev - Reference to the NuttX driver state structure
+ *
+ * Returned Value:
+ * None
+ *
+ * Assumptions:
+ * Called in normal user mode
+ *
+ ****************************************************************************/
+
+static int ez80emac_txavail(struct uip_driver_s *dev)
+{
+ struct ez80emac_driver_s *priv = (struct ez80emac_driver_s *)dev->d_private;
+ irqstate_t flags;
+
+ flags = irqsave();
+
+ /* Ignore the notification if the interface is not yet up */
+
+ if (priv->bifup)
+ {
+
+ /* Check if there is room in the hardware to hold another outgoing packet. */
+
+ /* If so, then poll uIP for new XMIT data */
+
+ (void)uip_poll(&priv->dev, ez80emac_uiptxpoll);
+ }
+
+ irqrestore(flags);
+ return OK;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Function: ez80emac_initialize
+ *
+ * Description:
+ * Initialize the Ethernet driver
+ *
+ * Parameters:
+ * None
+ *
+ * Returned Value:
+ * OK on success; Negated errno on failure.
+ *
+ ****************************************************************************/
+
+int up_netinitialize(void)
+{
+ struct ez80emac_driver_s *priv = &g_emac;
+ uint24 addr;
+ ubyte regval;
+ int ret;
+
+ /* Initialize the hardware
+ *
+ * The ez80 has a fixed 8kb of EMAC SRAM memory located in the high
+ * address space (we don't need to know where, we can get then from
+ * the EZ80_EMAC_BP_U register). The EMAC memory is broken into
+ * two parts: the Tx buffer and the Rx buffer.
+ *
+ * The TX buffer lies at the beginning of the EMAC memory.
+ * The Transmit Lower Boundary Pointer Register, TLBP, holds the
+ * least significant 12-bits of the starting address of the Tx buffer.
+ */
+
+ outp(EZ80_EMAC_TLBP_L, 0); /* Bits 0-7 set to zero */
+ outp(EZ80_EMAC_TLBP_H, 0); /* Bits 8-12 set to zero */
+
+ addr = (uint24)inp(EZ80_EMAC_BP_U) << 16 |
+ (uint24)inp(EZ80_EMAC_TLBP_H) << 8 |
+ (uint24)inp(EZ80_EMAC_TLBP_L);
+
+ priv->txstart = (FAR struct ez80emac_desc_s *)(addr);
+ priv->txnext = priv->txstart;
+ priv->txhead = NULL;
+ priv->txtail = NULL;
+
+ priv->txnext->np = 0;
+ priv->txnext->pktsize = 0;
+ priv->txnext->stat = 0;
+
+ nvdbg("txnext=%p {%06x, %u, %04x} trp=%02x%02x\n",
+ priv->txnext, priv->txnext->np, priv->txnext->pktsize, priv->txnext->stat,
+ inp(EZ80_EMAC_TRP_H), inp(EZ80_EMAC_TRP_L));
+
+ /* The Boundary Pointer Register, EMAC_BP, points to the start of the Rx
+ * buffer (end of Tx buffer + 1). Only bits EMAC_BP[12:5] of are
+ * write-able.
+ */
+
+ outp(EZ80_EMAC_BP_L, EMAC_TXBUFSIZE & 0xe0);
+ outp(EZ80_EMAC_BP_H, (EMAC_TXBUFSIZE >> 8) & 0x1f);
+
+ addr = (uint24)inp(EZ80_EMAC_BP_U) << 16 |
+ (uint24)inp(EZ80_EMAC_BP_H) << 8 |
+ (uint24)inp(EZ80_EMAC_BP_L);
+ priv->rxstart = (FAR struct ez80emac_desc_s *)(addr);
+ priv->rxnext = priv->rxstart;
+
+ priv->rxnext->np = 0;
+ priv->rxnext->pktsize = 0;
+ priv->rxnext->stat = 0;
+
+ nvdbg("rxnext=%p {%06x, %u, %04x} bp=%06x\n",
+ priv->rxnext, priv->rxnext->np, priv->rxnext->pktsize,
+ priv->rxnext->stat, addr);
+
+ /* The EMAC Receive Read Pointer (RRP) register(s) should be initialized
+ * to the EMAC_BEZ80_EMAC_RRP_HP value (start of the Receive buffer). The RRP register
+ * points to where the next Receive packet is read from. The EMAC_BP[12:5]
+ * is loaded into this register whenever the EMAC_RST [(HRRFN) is set to 1.
+ * The RxDMA block uses the RRP[12:5] to compare to RWP[12:5] for determining
+ * how many buffers remain. The result equates to the BLKSLFT register.
+ *
+ * The read-only EMAC Receive Write Pointer (RWP) egisters reports the
+ * current RxDMA Receive Write pointer. This pointer gets initialized to EMAC_BP
+ * whenever EMAC_RST bits SRST or HRRTN are set. Because the size of the packet
+ * is limited to a minimum of 32 bytes, the last five bits are always zero.
+ */
+
+ outp(EZ80_EMAC_RRP_H, inp(EZ80_EMAC_BP_H));
+ outp(EZ80_EMAC_RRP_L, inp(EZ80_EMAC_BP_L));
+
+ nvdbg("rrp=%02x%02x rwp=%02%02\n",
+ inp(EZ80_EMAC_RRP_H), inp(EZ80_EMAC_RRP_L),
+ inp(EZ80_EMAC_RWP_H), inp(EZ80_EMAC_RWP_L));
+
+ /* The Receive High Boundary Pointer Register, EMAC_RHBP, points to the end
+ * of the Rx buffer + 1. Only bits EMAC_RHBP[12:5] are write-able.
+ */
+
+ outp(EZ80_EMAC_RHBP_L, EMAC_TOTAL_BUFSIZE & 0xe0);
+ outp(EZ80_EMAC_RHBP_H, (EMAC_TOTAL_BUFSIZE >> 8) & 0x1f);
+
+ addr = (uint24)inp(EZ80_EMAC_BP_U) << 16 |
+ (uint24)inp(EZ80_EMAC_RHBP_H) << 8 |
+ (uint24)inp(EZ80_EMAC_RHBP_L);
+ priv->rxendp1 = (FAR struct ez80emac_desc_s *)addr;
+
+ nvdbg("rxendp1=%p bp=%06x\n", priv->rxendp1, addr);
+
+ /* The Tx and Receive buffers are divided into packet buffers of either
+ * 256, 128, 64, or 32 bytes selected by BufSize register bits 7 and 6.
+ */
+
+ outp(EZ80_EMAC_BUFSZ, EMAC_BUFSZ);
+ nvdbg("bufsz=%02x blksleft=%02x%02x\n",
+ inp(EZ80_EMAC_BUFSZ), inp(EZ80_EMAC_BLKSLFT_H), inp(EZ80_EMAC_BLKSLFT_L));
+
+ /* Software reset */
+
+ outp(EZ80_EMAC_ISTAT, 0xff); /* Clear any pending interupts */
+ regval = inp(EZ80_EMAC_RST);
+ regval |= EMAC_RST_SRST;
+ outp(EZ80_EMAC_RST, regval);
+ regval &= ~EMAC_RST_SRST;
+ outp(EZ80_EMAC_RST, regval);
+
+ nvdbg("After soft reset: rwp=%02%02 trp=%02x%02x\n",
+ inp(EZ80_EMAC_RWP_H), inp(EZ80_EMAC_RWP_L),
+ inp(EZ80_EMAC_TRP_H), inp(EZ80_EMAC_TRP_L));
+
+ /* PHY reset */
+
+ up_udelay(500);
+ ez80emac_miiwrite(priv, MII_MCR, MII_MCR_RESET);
+ if (!ez80emac_miipoll(priv, MII_MCR, MII_MCR_RESET, FALSE))
+ {
+ ndbg("PHY reset error.\n");
+ }
+
+ /* Initialize MAC */
+
+ /* Set only the default late collision bytes in CFG2 */
+
+ outp(EZ80_EMAC_CFG3, EMAC_LCOL);
+
+ /* Set only the retry count in CFG3 */
+
+ outp(EZ80_EMAC_CFG3, EMAC_RETRY);
+
+ /* EMAC_CFG4_TXFC - Pause control frames are allowed to be transmitted
+ * EMAC_CFG4_RXFC - Act on received pause control frames
+ */
+
+ outp(EZ80_EMAC_CFG4, EMAC_CFG4_TXFC|EMAC_CFG4_RXFC);
+
+ /* EMAC_CFG1_CRCEN + EMAC_CFG1_PADEN + EMAC_CFG1_VLPAD + EMAC_CFG1_ADPADN =
+ * if VLAN not detected, pad to 60, add CRC
+ * if VLAN detected, pad to 64, add CRC
+ */
+
+ outp(EZ80_EMAC_CFG1, EMAC_CFG1_CRCEN|EMAC_CFG1_PADEN|EMAC_CFG1_ADPADN|EMAC_CFG1_VLPAD);
+
+ outp(EZ80_EMAC_IPGT, EMAC_IPGT);
+ outp(EZ80_EMAC_IPGR1, EMAC_IPGR1);
+ outp(EZ80_EMAC_IPGR2, EMAC_IPGR2);
+
+ outp(EZ80_EMAC_MAXF_L, EMAC_MAXF & 0xff);
+ outp(EZ80_EMAC_MAXF_H, EMAC_MAXF >> 8);
+
+ /* Select the fastest MDC clock divider. The MDC clock derives
+ * from the SCLK divided by 4, 6, 8, 10, 14, 20, or 28.
+ */
+
+ outp(EZ80_EMAC_MIIMGT, CONFIG_EZ80_MDCDIV);
+
+ /* Clear the new hash table */
+
+ outp(EZ80_EMAC_HTBL_0, 0);
+ outp(EZ80_EMAC_HTBL_1, 0);
+ outp(EZ80_EMAC_HTBL_2, 0);
+ outp(EZ80_EMAC_HTBL_3, 0);
+ outp(EZ80_EMAC_HTBL_4, 0);
+ outp(EZ80_EMAC_HTBL_5, 0);
+ outp(EZ80_EMAC_HTBL_6, 0);
+ outp(EZ80_EMAC_HTBL_7, 0);
+
+ /* PHY reset */
+
+ ez80emac_miiwrite(priv, MII_MCR, MII_MCR_RESET);
+ if (!ez80emac_miipoll(priv, MII_MCR, MII_MCR_RESET, FALSE))
+ {
+ ndbg("PHY reset error.\n");
+ ret = -EIO;
+ goto errout;
+ }
+
+ /* Set auto-negotion */
+
+ ez80emac_miiautonegotiate(priv);
+
+ /* Initialize DMA / FIFO */
+
+ outp(EZ80_EMAC_TPTV_L, EMAC_TPTV & 0xff);
+ outp(EZ80_EMAC_TPTV_H, EMAC_TPTV >> 8);
+
+ /* Disable all interrupts */
+
+ outp(EZ80_EMAC_IEN, 0);
+
+ /* Attach IRQs */
+
+ ret = irq_attach(EZ80_EMACSYS_IRQ, ez80emac_sysinterrupt);
+ if (ret < 0)
+ {
+ ndbg("Unable to attach IRQ %d\n", EZ80_EMACSYS_IRQ);
+ ret = -EAGAIN;
+ goto errout;
+ }
+
+ ret = irq_attach(EZ80_EMACRX_IRQ, ez80emac_rxinterrupt);
+ if (ret < 0)
+ {
+ ndbg("Unable to attach IRQ %d\n", EZ80_EMACRX_IRQ);
+ ret = -EAGAIN;
+ goto errout;
+ }
+
+ ret = irq_attach(EZ80_EMACTX_IRQ, ez80emac_txinterrupt);
+ if (ret < 0)
+ {
+ ndbg("Unable to attach IRQ %d\n", EZ80_EMACTX_IRQ);
+ ret = -EAGAIN;
+ goto errout;
+ }
+
+ /* Initialize the driver structure */
+
+ memset(&g_emac, 0, sizeof(struct ez80emac_driver_s));
+ priv->dev.d_ifup = ez80emac_ifup; /* I/F down callback */
+ priv->dev.d_ifdown = ez80emac_ifdown; /* I/F up (new IP address) callback */
+ priv->dev.d_txavail = ez80emac_txavail; /* New TX data callback */
+ priv->dev.d_private = (FAR void*)&g_emac; /* Used to recover private state from dev */
+
+ /* Create a watchdog for timing polling for and timing of transmisstions */
+
+ priv->txpoll = wd_create(); /* Create periodic poll timer */
+ priv->txtimeout = wd_create(); /* Create TX timeout timer */
+
+ /* Read the MAC address from the hardware into priv->dev.d_mac.ether_addr_octet */
+
+ /* Register the device with the OS so that socket IOCTLs can be performed */
+
+ (void)netdev_register(&priv->dev);
+ return OK;
+
+errout:
+ up_netuninitialize();
+ return ERROR;
+}
+
+/****************************************************************************
+ * Function: up_multicastfilter
+ *
+ * Description:
+ * Add one MAC address to the multi-cast hash table
+ *
+ * Parameters:
+ * dev - Reference to the uIP driver state structure
+ * mac - The MAC address to add
+ * enable - TRUE: Enable filtering on this address; FALSE: disable
+ *
+ * Returned Value:
+ * OK on success; Negated errno on failure.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_MCFILTER
+int up_multicastfilter(FAR struct uip_driver_s *dev, FAR ubyte *mac, boolean enable)
+{
+ FAR struct ez80emac_driver_s *priv = (FAR struct ez80emac_driver_s *)dev->priv;
+ ubyte regval;
+ int ndx;
+ int bit;
+ int i;
+
+ /* The EMAC Hash Table Registers represent an 8x8 hash table matrix.
+ * This table is used as an option to select between different multi-cast
+ * addresses. If a multicast address is received, the first 6 bits of the CRC
+ * decoded and to a table that points to a single bit in the hash table matrix.
+ * if the selected bit is '1', then multicast packet is accepted. If the bit
+ * is '0', the multicast packet is rejected.
+ */
+
+ /* Apply the hash algorithm to the the hash table index and bit number
+ * corresponding to this MAC
+ */
+
+ ez80emac_machash(mclist->dmi_addr, &ndx, &bit);
+
+ /* And set/clear that bit in that array element */
+
+ regval = inp(EZ80_EMAC_HTBL_0 + ndx);
+ if (enable)
+ {
+ regval |= (1 << bit);
+ }
+ else
+ {
+ regval &= ~(1 << bit);
+ }
+ outp(EZ80_EMAC_HTBL_0 + ndx, regval);
+ return OK;
+}
+#endif
+
+/****************************************************************************
+ * Function: up_netuninitialize
+ *
+ * Description:
+ * Un-initialize the Ethernet driver
+ *
+ * Parameters:
+ * None
+ *
+ * Returned Value:
+ * None
+ *
+ * Assumptions:
+ *
+ ****************************************************************************/
+
+void up_netuninitialize(void)
+{
+ FAR struct ez80emac_driver_s *priv = &g_emac;
+ int i;
+
+ ez80emac_ifdown(&priv->dev);
+ /* netdev_unregister(priv->dev); No such API yet */
+
+ priv->txnext = priv->txstart;
+ priv->txhead = NULL;
+ priv->txtail = NULL;
+
+ irq_detach(EZ80_EMACRX_IRQ);
+ irq_detach(EZ80_EMACTX_IRQ);
+ irq_detach(EZ80_EMACSYS_IRQ);
+}
+
+#endif /* CONFIG_NET && CONFIG_EZ80_EMAC */
+
diff --git a/arch/z80/src/ez80/ez80f91_emac.h b/arch/z80/src/ez80/ez80f91_emac.h
index 4684b78015..538ced1ebf 100644
--- a/arch/z80/src/ez80/ez80f91_emac.h
+++ b/arch/z80/src/ez80/ez80f91_emac.h
@@ -123,12 +123,12 @@
/* EMAC bufsize register bit settings ***********************************************/
-#define EMAC_BUFSIZ_BUFSZMASK 0xc0 /* Bits 6-6: Rx/Tx buffer size */
-# define EMAC_BUFSIZ_256b 0x00 /* EMAC Rx/Tx buffer size = 256 bytes */
-# define EMAC_BUFSIZ_128b 0x40 /* EMAC Rx/Tx buffer size = 128 bytes */
-# define EMAC_BUFSIZ_64b 0x80 /* EMAC Rx/Tx buffer size = 64 bytes */
-# define EMAC_BUFSIZ_32b 0xc0 /* EMAC Rx/Tx buffer size = 32 bytes */
-#define EMAC_BUFSIZ_TPCFLMASK 0x3f /* Bits 0-5: Tranmsit pause frame level */
+#define EMAC_BUFSZ_BUFSZMASK 0xc0 /* Bits 6-6: Rx/Tx buffer size */
+# define EMAC_BUFSZ_256b 0x00 /* EMAC Rx/Tx buffer size = 256 bytes */
+# define EMAC_BUFSZ_128b 0x40 /* EMAC Rx/Tx buffer size = 128 bytes */
+# define EMAC_BUFSZ_64b 0x80 /* EMAC Rx/Tx buffer size = 64 bytes */
+# define EMAC_BUFSZ_32b 0xc0 /* EMAC Rx/Tx buffer size = 32 bytes */
+#define EMAC_BUFSZ_TPCFLMASK 0x3f /* Bits 0-5: Tranmsit pause frame level */
/* EMAC interrupt enable register bit settings **************************************/
diff --git a/configs/ez80f910200zco/ostest/defconfig b/configs/ez80f910200zco/ostest/defconfig
index d244bc68bd..8a8d8fe0e7 100644
--- a/configs/ez80f910200zco/ostest/defconfig
+++ b/configs/ez80f910200zco/ostest/defconfig
@@ -74,7 +74,7 @@ CONFIG_ARCH_CHIP_EZ80F92=n
CONFIG_ARCH_CHIP_EZ80F93=n
CONFIG_ARCH_BOARD=ez80f910200zco
CONFIG_ARCH_BOARD_EZ80F910200ZCO=y
-CONFIG_ARCH_NOINTC=y
+CONFIG_ARCH_NOINTC=n
CONFIG_ARCH_IRQPRIO=n
CONFIG_BOARD_LOOPSPERMSEC=1250
CONFIG_ENDIAN_BIG=y
@@ -109,6 +109,31 @@ CONFIG_UART1_PARITY=0
CONFIG_UART0_2STOP=0
CONFIG_UART1_2STOP=0
+#
+# ez80 EMAC
+#
+# CONFIG_EZ80_EMAC - Enables support for ez80 EMAC driver.
+# CONFIG_EZ80_FIAD - Provides the MII address of the PHY device
+# CONFIG_EZ80_PKTBUFSIZE, CONFIG_EZ80_NTXPKTBUFS, and CONFIG_EZ80_NRXPKTBUFS -
+# The size of one packet buffer and the number of Rx and Tx packet
+# buffers. This must add up to exactly 8192 bytes.
+# CONFIG_EZ80_MDCDIV=1 - The value to use for the divider to derive
+# the MII MDC clock from SLCK. Options are 1->4; 2->6; 3->8; 4->10;
+# 5->14; 6->20; and 7->28
+# CONFIG_EZ80_TXPOLLTIMERMS - Specifies how often the EMAC controller
+# should poll for a Tx packet (milliseconds)
+# CONFIG_ARCH_MCFILTER - Enalbes multicast MAC address filtering (not
+# fully implemented
+CONFIG_EZ80_EMAC=n
+CONFIG_EZ80_FIAD=0x1f
+CONFIG_EZ80_PKTBUFSIZE=64
+CONFIG_EZ80_NTXPKTBUFS=64
+CONFIG_EZ80_NRXPKTBUFS=64
+CONFIG_EZ80_PKTBUFSIZE=64
+CONFIG_EZ80_MDCDIV=0
+CONFIG_EZ80_TXPOLLTIMERMS=10
+CONFIG_ARCH_MCFILTER=n
+
#
# General build options
#
diff --git a/configs/ez80f910200zco/ostest/ostest.zdsproj b/configs/ez80f910200zco/ostest/ostest.zdsproj
index 08247148bd..30cb49a54d 100755
--- a/configs/ez80f910200zco/ostest/ostest.zdsproj
+++ b/configs/ez80f910200zco/ostest/ostest.zdsproj
@@ -42,7 +42,7 @@
-
+
@@ -244,4 +244,4 @@
-
+
\ No newline at end of file