Merge branch 'denx-coldfire' into coldfire-aug2007

4 files changed, 805 insertions, 0 deletions

diff --git a/drivers/net/Makefile b/drivers/net/Makefile
new file mode 100644
index 0000000000..37d69b9949
--- /dev/null
+++ b/drivers/net/Makefile
@@ -0,0 +1,45 @@
+#
+# (C) Copyright 2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB 	:= $(obj)libnet.a
+
+COBJS 	:= mcffec.o
+
+SRCS 	:= $(COBJS:.o=.c)
+OBJS 	:= $(addprefix $(obj),$(COBJS))
+
+all:	$(LIB)
+
+$(LIB):	$(obj).depend $(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/drivers/net/mcffec.c b/drivers/net/mcffec.c
new file mode 100644
index 0000000000..fde1aaecb6
--- /dev/null
+++ b/drivers/net/mcffec.c
@@ -0,0 +1,584 @@
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ *
+ * 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 <common.h>
+#include <malloc.h>
+
+#include <asm/fec.h>
+#include <asm/immap.h>
+
+#include <command.h>
+#include <config.h>
+#include <net.h>
+#include <miiphy.h>
+
+#ifdef CONFIG_MCFFEC
+#undef	ET_DEBUG
+#undef	MII_DEBUG
+
+/* Ethernet Transmit and Receive Buffers */
+#define DBUF_LENGTH		1520
+#define TX_BUF_CNT		2
+#define PKT_MAXBUF_SIZE		1518
+#define PKT_MINBUF_SIZE		64
+#define PKT_MAXBLR_SIZE		1520
+#define LAST_PKTBUFSRX		PKTBUFSRX - 1
+#define BD_ENET_RX_W_E		(BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY)
+#define BD_ENET_TX_RDY_LST	(BD_ENET_TX_READY | BD_ENET_TX_LAST)
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
+
+struct fec_info_s fec_info[] = {
+#ifdef CFG_FEC0_IOBASE
+	{
+	 0,			/* index */
+	 CFG_FEC0_IOBASE,	/* io base */
+	 CFG_FEC0_PINMUX,	/* gpio pin muxing */
+	 CFG_FEC0_MIIBASE,	/* mii base */
+	 -1,			/* phy_addr */
+	 0,			/* duplex and speed */
+	 0,			/* phy name */
+	 0,			/* phyname init */
+	 0,			/* RX BD */
+	 0,			/* TX BD */
+	 0,			/* rx Index */
+	 0,			/* tx Index */
+	 0,			/* tx buffer */
+	 0,			/* initialized flag */
+	 },
+#endif
+#ifdef CFG_FEC1_IOBASE
+	{
+	 1,			/* index */
+	 CFG_FEC1_IOBASE,	/* io base */
+	 CFG_FEC1_PINMUX,	/* gpio pin muxing */
+	 CFG_FEC1_MIIBASE,	/* mii base */
+	 -1,			/* phy_addr */
+	 0,			/* duplex and speed */
+	 0,			/* phy name */
+	 0,			/* phy name init */
+	 0,			/* RX BD */
+	 0,			/* TX BD */
+	 0,			/* rx Index */
+	 0,			/* tx Index */
+	 0,			/* tx buffer */
+	 0,			/* initialized flag */
+	 }
+#endif
+};
+
+int fec_send(struct eth_device *dev, volatile void *packet, int length);
+int fec_recv(struct eth_device *dev);
+int fec_init(struct eth_device *dev, bd_t * bd);
+void fec_halt(struct eth_device *dev);
+void fec_reset(struct eth_device *dev);
+
+extern int fecpin_setclear(struct eth_device *dev, int setclear);
+
+#ifdef CFG_DISCOVER_PHY
+extern void __mii_init(void);
+extern uint mii_send(uint mii_cmd);
+extern int mii_discover_phy(struct eth_device *dev);
+extern int mcffec_miiphy_read(char *devname, unsigned char addr,
+			      unsigned char reg, unsigned short *value);
+extern int mcffec_miiphy_write(char *devname, unsigned char addr,
+			       unsigned char reg, unsigned short value);
+#endif
+
+void setFecDuplexSpeed(volatile fec_t * fecp, bd_t * bd, int dup_spd)
+{
+	if ((dup_spd >> 16) == FULL) {
+		/* Set maximum frame length */
+		fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) | FEC_RCR_MII_MODE |
+		    FEC_RCR_PROM | 0x100;
+		fecp->tcr = FEC_TCR_FDEN;
+	} else {
+		/* Half duplex mode */
+		fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) |
+		    FEC_RCR_MII_MODE | FEC_RCR_DRT;
+		fecp->tcr &= ~FEC_TCR_FDEN;
+	}
+
+	if ((dup_spd & 0xFFFF) == _100BASET) {
+#ifdef MII_DEBUG
+		printf("100Mbps\n");
+#endif
+		bd->bi_ethspeed = 100;
+	} else {
+#ifdef MII_DEBUG
+		printf("10Mbps\n");
+#endif
+		bd->bi_ethspeed = 10;
+	}
+}
+
+int fec_send(struct eth_device *dev, volatile void *packet, int length)
+{
+	struct fec_info_s *info = dev->priv;
+	volatile fec_t *fecp = (fec_t *) (info->iobase);
+	int j, rc;
+	u16 phyStatus;
+
+	miiphy_read(dev->name, info->phy_addr, PHY_BMSR, &phyStatus);
+
+	/* section 16.9.23.3
+	 * Wait for ready
+	 */
+	j = 0;
+	while ((info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_READY) &&
+	       (j < MCFFEC_TOUT_LOOP)) {
+		udelay(1);
+		j++;
+	}
+	if (j >= MCFFEC_TOUT_LOOP) {
+		printf("TX not ready\n");
+	}
+
+	info->txbd[info->txIdx].cbd_bufaddr = (uint) packet;
+	info->txbd[info->txIdx].cbd_datlen = length;
+	info->txbd[info->txIdx].cbd_sc |= BD_ENET_TX_RDY_LST;
+
+	/* Activate transmit Buffer Descriptor polling */
+	fecp->tdar = 0x01000000;	/* Descriptor polling active    */
+
+#ifdef CFG_UNIFY_CACHE
+	icache_invalid();
+#endif
+	j = 0;
+	while ((info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_READY) &&
+	       (j < MCFFEC_TOUT_LOOP)) {
+		udelay(1);
+		j++;
+	}
+	if (j >= MCFFEC_TOUT_LOOP) {
+		printf("TX timeout\n");
+	}
+
+#ifdef ET_DEBUG
+	printf("%s[%d] %s: cycles: %d    status: %x  retry cnt: %d\n",
+	       __FILE__, __LINE__, __FUNCTION__, j,
+	       info->txbd[info->txIdx].cbd_sc,
+	       (info->txbd[info->txIdx].cbd_sc & 0x003C) >> 2);
+#endif
+
+	/* return only status bits */
+	rc = (info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_STATS);
+	info->txIdx = (info->txIdx + 1) % TX_BUF_CNT;
+
+	return rc;
+}
+
+int fec_recv(struct eth_device *dev)
+{
+	struct fec_info_s *info = dev->priv;
+	volatile fec_t *fecp = (fec_t *) (info->iobase);
+	int length;
+
+	for (;;) {
+#ifdef CFG_UNIFY_CACHE
+       		icache_invalid();
+#endif
+		/* section 16.9.23.2 */
+		if (info->rxbd[info->rxIdx].cbd_sc & BD_ENET_RX_EMPTY) {
+			length = -1;
+			break;	/* nothing received - leave for() loop */
+		}
+
+		length = info->rxbd[info->rxIdx].cbd_datlen;
+
+		if (info->rxbd[info->rxIdx].cbd_sc & 0x003f) {
+			printf("%s[%d] err: %x\n",
+			       __FUNCTION__, __LINE__,
+			       info->rxbd[info->rxIdx].cbd_sc);
+#ifdef ET_DEBUG
+			printf("%s[%d] err: %x\n",
+			       __FUNCTION__, __LINE__,
+			       info->rxbd[info->rxIdx].cbd_sc);
+#endif
+		} else {
+
+			length -= 4;
+			/* Pass the packet up to the protocol layers. */
+			NetReceive(NetRxPackets[info->rxIdx], length);
+
+			fecp->eir |= FEC_EIR_RXF;
+		}
+
+		/* Give the buffer back to the FEC. */
+		info->rxbd[info->rxIdx].cbd_datlen = 0;
+
+		/* wrap around buffer index when necessary */
+		if (info->rxIdx == LAST_PKTBUFSRX) {
+			info->rxbd[PKTBUFSRX - 1].cbd_sc = BD_ENET_RX_W_E;
+			info->rxIdx = 0;
+		} else {
+			info->rxbd[info->rxIdx].cbd_sc = BD_ENET_RX_EMPTY;
+			info->rxIdx++;
+		}
+
+		/* Try to fill Buffer Descriptors */
+		fecp->rdar = 0x01000000;	/* Descriptor polling active    */
+	}
+
+	return length;
+}
+
+#ifdef ET_DEBUG
+void dbgFecRegs(struct eth_device *dev)
+{
+	struct fec_info_s *info = dev->priv;
+	volatile fec_t *fecp = (fec_t *) (info->iobase);
+
+	printf("=====\n");
+	printf("ievent       %x - %x\n", (int)&fecp->eir, fecp->eir);
+	printf("imask        %x - %x\n", (int)&fecp->eimr, fecp->eimr);
+	printf("r_des_active %x - %x\n", (int)&fecp->rdar, fecp->rdar);
+	printf("x_des_active %x - %x\n", (int)&fecp->tdar, fecp->tdar);
+	printf("ecntrl       %x - %x\n", (int)&fecp->ecr, fecp->ecr);
+	printf("mii_mframe   %x - %x\n", (int)&fecp->mmfr, fecp->mmfr);
+	printf("mii_speed    %x - %x\n", (int)&fecp->mscr, fecp->mscr);
+	printf("mii_ctrlstat %x - %x\n", (int)&fecp->mibc, fecp->mibc);
+	printf("r_cntrl      %x - %x\n", (int)&fecp->rcr, fecp->rcr);
+	printf("x_cntrl      %x - %x\n", (int)&fecp->tcr, fecp->tcr);
+	printf("padr_l       %x - %x\n", (int)&fecp->palr, fecp->palr);
+	printf("padr_u       %x - %x\n", (int)&fecp->paur, fecp->paur);
+	printf("op_pause     %x - %x\n", (int)&fecp->opd, fecp->opd);
+	printf("iadr_u       %x - %x\n", (int)&fecp->iaur, fecp->iaur);
+	printf("iadr_l       %x - %x\n", (int)&fecp->ialr, fecp->ialr);
+	printf("gadr_u       %x - %x\n", (int)&fecp->gaur, fecp->gaur);
+	printf("gadr_l       %x - %x\n", (int)&fecp->galr, fecp->galr);
+	printf("x_wmrk       %x - %x\n", (int)&fecp->tfwr, fecp->tfwr);
+	printf("r_bound      %x - %x\n", (int)&fecp->frbr, fecp->frbr);
+	printf("r_fstart     %x - %x\n", (int)&fecp->frsr, fecp->frsr);
+	printf("r_drng       %x - %x\n", (int)&fecp->erdsr, fecp->erdsr);
+	printf("x_drng       %x - %x\n", (int)&fecp->etdsr, fecp->etdsr);
+	printf("r_bufsz      %x - %x\n", (int)&fecp->emrbr, fecp->emrbr);
+
+	printf("\n");
+	printf("rmon_t_drop        %x - %x\n", (int)&fecp->rmon_t_drop,
+	       fecp->rmon_t_drop);
+	printf("rmon_t_packets     %x - %x\n", (int)&fecp->rmon_t_packets,
+	       fecp->rmon_t_packets);
+	printf("rmon_t_bc_pkt      %x - %x\n", (int)&fecp->rmon_t_bc_pkt,
+	       fecp->rmon_t_bc_pkt);
+	printf("rmon_t_mc_pkt      %x - %x\n", (int)&fecp->rmon_t_mc_pkt,
+	       fecp->rmon_t_mc_pkt);
+	printf("rmon_t_crc_align   %x - %x\n", (int)&fecp->rmon_t_crc_align,
+	       fecp->rmon_t_crc_align);
+	printf("rmon_t_undersize   %x - %x\n", (int)&fecp->rmon_t_undersize,
+	       fecp->rmon_t_undersize);
+	printf("rmon_t_oversize    %x - %x\n", (int)&fecp->rmon_t_oversize,
+	       fecp->rmon_t_oversize);
+	printf("rmon_t_frag        %x - %x\n", (int)&fecp->rmon_t_frag,
+	       fecp->rmon_t_frag);
+	printf("rmon_t_jab         %x - %x\n", (int)&fecp->rmon_t_jab,
+	       fecp->rmon_t_jab);
+	printf("rmon_t_col         %x - %x\n", (int)&fecp->rmon_t_col,
+	       fecp->rmon_t_col);
+	printf("rmon_t_p64         %x - %x\n", (int)&fecp->rmon_t_p64,
+	       fecp->rmon_t_p64);
+	printf("rmon_t_p65to127    %x - %x\n", (int)&fecp->rmon_t_p65to127,
+	       fecp->rmon_t_p65to127);
+	printf("rmon_t_p128to255   %x - %x\n", (int)&fecp->rmon_t_p128to255,
+	       fecp->rmon_t_p128to255);
+	printf("rmon_t_p256to511   %x - %x\n", (int)&fecp->rmon_t_p256to511,
+	       fecp->rmon_t_p256to511);
+	printf("rmon_t_p512to1023  %x - %x\n", (int)&fecp->rmon_t_p512to1023,
+	       fecp->rmon_t_p512to1023);
+	printf("rmon_t_p1024to2047 %x - %x\n", (int)&fecp->rmon_t_p1024to2047,
+	       fecp->rmon_t_p1024to2047);
+	printf("rmon_t_p_gte2048   %x - %x\n", (int)&fecp->rmon_t_p_gte2048,
+	       fecp->rmon_t_p_gte2048);
+	printf("rmon_t_octets      %x - %x\n", (int)&fecp->rmon_t_octets,
+	       fecp->rmon_t_octets);
+
+	printf("\n");
+	printf("ieee_t_drop      %x - %x\n", (int)&fecp->ieee_t_drop,
+	       fecp->ieee_t_drop);
+	printf("ieee_t_frame_ok  %x - %x\n", (int)&fecp->ieee_t_frame_ok,
+	       fecp->ieee_t_frame_ok);
+	printf("ieee_t_1col      %x - %x\n", (int)&fecp->ieee_t_1col,
+	       fecp->ieee_t_1col);
+	printf("ieee_t_mcol      %x - %x\n", (int)&fecp->ieee_t_mcol,
+	       fecp->ieee_t_mcol);
+	printf("ieee_t_def       %x - %x\n", (int)&fecp->ieee_t_def,
+	       fecp->ieee_t_def);
+	printf("ieee_t_lcol      %x - %x\n", (int)&fecp->ieee_t_lcol,
+	       fecp->ieee_t_lcol);
+	printf("ieee_t_excol     %x - %x\n", (int)&fecp->ieee_t_excol,
+	       fecp->ieee_t_excol);
+	printf("ieee_t_macerr    %x - %x\n", (int)&fecp->ieee_t_macerr,
+	       fecp->ieee_t_macerr);
+	printf("ieee_t_cserr     %x - %x\n", (int)&fecp->ieee_t_cserr,
+	       fecp->ieee_t_cserr);
+	printf("ieee_t_sqe       %x - %x\n", (int)&fecp->ieee_t_sqe,
+	       fecp->ieee_t_sqe);
+	printf("ieee_t_fdxfc     %x - %x\n", (int)&fecp->ieee_t_fdxfc,
+	       fecp->ieee_t_fdxfc);
+	printf("ieee_t_octets_ok %x - %x\n", (int)&fecp->ieee_t_octets_ok,
+	       fecp->ieee_t_octets_ok);
+
+	printf("\n");
+	printf("rmon_r_drop        %x - %x\n", (int)&fecp->rmon_r_drop,
+	       fecp->rmon_r_drop);
+	printf("rmon_r_packets     %x - %x\n", (int)&fecp->rmon_r_packets,
+	       fecp->rmon_r_packets);
+	printf("rmon_r_bc_pkt      %x - %x\n", (int)&fecp->rmon_r_bc_pkt,
+	       fecp->rmon_r_bc_pkt);
+	printf("rmon_r_mc_pkt      %x - %x\n", (int)&fecp->rmon_r_mc_pkt,
+	       fecp->rmon_r_mc_pkt);
+	printf("rmon_r_crc_align   %x - %x\n", (int)&fecp->rmon_r_crc_align,
+	       fecp->rmon_r_crc_align);
+	printf("rmon_r_undersize   %x - %x\n", (int)&fecp->rmon_r_undersize,
+	       fecp->rmon_r_undersize);
+	printf("rmon_r_oversize    %x - %x\n", (int)&fecp->rmon_r_oversize,
+	       fecp->rmon_r_oversize);
+	printf("rmon_r_frag        %x - %x\n", (int)&fecp->rmon_r_frag,
+	       fecp->rmon_r_frag);
+	printf("rmon_r_jab         %x - %x\n", (int)&fecp->rmon_r_jab,
+	       fecp->rmon_r_jab);
+	printf("rmon_r_p64         %x - %x\n", (int)&fecp->rmon_r_p64,
+	       fecp->rmon_r_p64);
+	printf("rmon_r_p65to127    %x - %x\n", (int)&fecp->rmon_r_p65to127,
+	       fecp->rmon_r_p65to127);
+	printf("rmon_r_p128to255   %x - %x\n", (int)&fecp->rmon_r_p128to255,
+	       fecp->rmon_r_p128to255);
+	printf("rmon_r_p256to511   %x - %x\n", (int)&fecp->rmon_r_p256to511,
+	       fecp->rmon_r_p256to511);
+	printf("rmon_r_p512to1023  %x - %x\n", (int)&fecp->rmon_r_p512to1023,
+	       fecp->rmon_r_p512to1023);
+	printf("rmon_r_p1024to2047 %x - %x\n", (int)&fecp->rmon_r_p1024to2047,
+	       fecp->rmon_r_p1024to2047);
+	printf("rmon_r_p_gte2048   %x - %x\n", (int)&fecp->rmon_r_p_gte2048,
+	       fecp->rmon_r_p_gte2048);
+	printf("rmon_r_octets      %x - %x\n", (int)&fecp->rmon_r_octets,
+	       fecp->rmon_r_octets);
+
+	printf("\n");
+	printf("ieee_r_drop      %x - %x\n", (int)&fecp->ieee_r_drop,
+	       fecp->ieee_r_drop);
+	printf("ieee_r_frame_ok  %x - %x\n", (int)&fecp->ieee_r_frame_ok,
+	       fecp->ieee_r_frame_ok);
+	printf("ieee_r_crc       %x - %x\n", (int)&fecp->ieee_r_crc,
+	       fecp->ieee_r_crc);
+	printf("ieee_r_align     %x - %x\n", (int)&fecp->ieee_r_align,
+	       fecp->ieee_r_align);
+	printf("ieee_r_macerr    %x - %x\n", (int)&fecp->ieee_r_macerr,
+	       fecp->ieee_r_macerr);
+	printf("ieee_r_fdxfc     %x - %x\n", (int)&fecp->ieee_r_fdxfc,
+	       fecp->ieee_r_fdxfc);
+	printf("ieee_r_octets_ok %x - %x\n", (int)&fecp->ieee_r_octets_ok,
+	       fecp->ieee_r_octets_ok);
+
+	printf("\n\n\n");
+}
+#endif
+
+int fec_init(struct eth_device *dev, bd_t * bd)
+{
+	struct fec_info_s *info = dev->priv;
+	volatile fec_t *fecp = (fec_t *) (info->iobase);
+	int i;
+	u8 *ea = NULL;
+
+	fecpin_setclear(dev, 1);
+
+	fec_reset(dev);
+
+#if (CONFIG_COMMANDS & CFG_CMD_MII) || defined (CONFIG_MII) || \
+	defined (CFG_DISCOVER_PHY)
+
+	mii_init();
+
+	setFecDuplexSpeed(fecp, bd, info->dup_spd);
+#else
+#ifndef CFG_DISCOVER_PHY
+	setFecDuplexSpeed(fecp, bd, (FECDUPLEX << 16) | FECSPEED);
+#endif				/* ifndef CFG_DISCOVER_PHY */
+#endif				/* CFG_CMD_MII || CONFIG_MII */
+
+	/* We use strictly polling mode only */
+	fecp->eimr = 0;
+
+	/* Clear any pending interrupt */
+	fecp->eir = 0xffffffff;
+
+	/* Set station address   */
+	if ((u32) fecp == CFG_FEC0_IOBASE) {
+		ea = &bd->bi_enetaddr[0];
+	} else {
+#ifdef CFG_FEC1_IOBASE
+		ea = &bd->bi_enet1addr[0];
+#endif
+	}
+
+	fecp->palr = (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
+	fecp->paur = (ea[4] << 24) | (ea[5] << 16);
+#ifdef ET_DEBUG
+	printf("Eth Addrs: %02x:%02x:%02x:%02x:%02x:%02x\n",
+	       ea[0], ea[1], ea[2], ea[3], ea[4], ea[5]);
+#endif
+
+	/* Clear unicast address hash table */
+	fecp->iaur = 0;
+	fecp->ialr = 0;
+
+	/* Clear multicast address hash table */
+	fecp->gaur = 0;
+	fecp->galr = 0;
+
+	/* Set maximum receive buffer size. */
+	fecp->emrbr = PKT_MAXBLR_SIZE;
+
+	/*
+	 * Setup Buffers and Buffer Desriptors
+	 */
+	info->rxIdx = 0;
+	info->txIdx = 0;
+
+	/*
+	 * Setup Receiver Buffer Descriptors (13.14.24.18)
+	 * Settings:
+	 *     Empty, Wrap
+	 */
+	for (i = 0; i < PKTBUFSRX; i++) {
+		info->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
+		info->rxbd[i].cbd_datlen = 0;	/* Reset */
+		info->rxbd[i].cbd_bufaddr = (uint) NetRxPackets[i];
+	}
+	info->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
+
+	/*
+	 * Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19)
+	 * Settings:
+	 *    Last, Tx CRC
+	 */
+	for (i = 0; i < TX_BUF_CNT; i++) {
+		info->txbd[i].cbd_sc = BD_ENET_TX_LAST | BD_ENET_TX_TC;
+		info->txbd[i].cbd_datlen = 0;	/* Reset */
+		info->txbd[i].cbd_bufaddr = (uint) (&info->txbuf[0]);
+	}
+	info->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP;
+
+	/* Set receive and transmit descriptor base */
+	fecp->erdsr = (unsigned int)(&info->rxbd[0]);
+	fecp->etdsr = (unsigned int)(&info->txbd[0]);
+
+	/* Now enable the transmit and receive processing */
+	fecp->ecr |= FEC_ECR_ETHER_EN;
+
+	/* And last, try to fill Rx Buffer Descriptors */
+	fecp->rdar = 0x01000000;	/* Descriptor polling active    */
+
+	return 1;
+}
+
+void fec_reset(struct eth_device *dev)
+{
+	struct fec_info_s *info = dev->priv;
+	volatile fec_t *fecp = (fec_t *) (info->iobase);
+	int i;
+
+	fecp->ecr = FEC_ECR_RESET;
+	for (i = 0; (fecp->ecr & FEC_ECR_RESET) && (i < FEC_RESET_DELAY); ++i) {
+		udelay(1);
+	}
+	if (i == FEC_RESET_DELAY) {
+		printf("FEC_RESET_DELAY timeout\n");
+	}
+}
+
+void fec_halt(struct eth_device *dev)
+{
+	struct fec_info_s *info = dev->priv;
+
+	fec_reset(dev);
+
+	fecpin_setclear(dev, 0);
+
+	info->rxIdx = info->txIdx = 0;
+	memset(info->rxbd, 0, PKTBUFSRX * sizeof(cbd_t));
+	memset(info->txbd, 0, TX_BUF_CNT * sizeof(cbd_t));
+	memset(info->txbuf, 0, DBUF_LENGTH);
+}
+
+int mcffec_initialize(bd_t * bis)
+{
+	struct eth_device *dev;
+	int i;
+
+	for (i = 0; i < sizeof(fec_info) / sizeof(fec_info[0]); i++) {
+
+		dev =
+		    (struct eth_device *)memalign(CFG_CACHELINE_SIZE,
+						  sizeof *dev);
+		if (dev == NULL)
+			hang();
+
+		memset(dev, 0, sizeof(*dev));
+
+		sprintf(dev->name, "FEC%d", fec_info[i].index);
+
+		dev->priv = &fec_info[i];
+		dev->init = fec_init;
+		dev->halt = fec_halt;
+		dev->send = fec_send;
+		dev->recv = fec_recv;
+
+		/* setup Receive and Transmit buffer descriptor */
+		fec_info[i].rxbd =
+		    (cbd_t *) memalign(CFG_CACHELINE_SIZE,
+				       (PKTBUFSRX * sizeof(cbd_t)));
+		fec_info[i].txbd =
+		    (cbd_t *) memalign(CFG_CACHELINE_SIZE,
+				       (TX_BUF_CNT * sizeof(cbd_t)));
+		fec_info[i].txbuf =
+		    (char *)memalign(CFG_CACHELINE_SIZE, DBUF_LENGTH);
+#ifdef ET_DEBUG
+		printf("rxbd %x txbd %x\n",
+		       (int)fec_info[i].rxbd, (int)fec_info[i].txbd);
+#endif
+
+		fec_info[i].phy_name = (char *)memalign(CFG_CACHELINE_SIZE, 32);
+
+		eth_register(dev);
+
+#if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
+		miiphy_register(dev->name,
+				mcffec_miiphy_read, mcffec_miiphy_write);
+#endif
+	}
+
+	/* default speed */
+	bis->bi_ethspeed = 10;
+
+	return 1;
+}
+
+#endif				/* CFG_CMD_NET, FEC_ENET & NET_MULTI */
+#endif				/* CONFIG_MCFFEC */
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
new file mode 100644
index 0000000000..93c68dd2e0
--- /dev/null
+++ b/drivers/serial/Makefile
@@ -0,0 +1,45 @@
+#
+# (C) Copyright 2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB 	:= $(obj)libserial.a
+
+COBJS 	:= mcfuart.o
+
+SRCS 	:= $(COBJS:.o=.c)
+OBJS 	:= $(addprefix $(obj),$(COBJS))
+
+all:	$(LIB)
+
+$(LIB):	$(obj).depend $(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/drivers/serial/mcfuart.c b/drivers/serial/mcfuart.c
new file mode 100644
index 0000000000..bc7077de79
--- /dev/null
+++ b/drivers/serial/mcfuart.c
@@ -0,0 +1,131 @@
+/*
+ * (C) Copyright 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew, Tsi-Chung.Liew@freescale.com.
+ *
+ * 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
+ *
+ */
+
+/*
+ * Minimal serial functions needed to use one of the uart ports
+ * as serial console interface.
+ */
+
+#include <common.h>
+#include <asm/immap.h>
+#include <asm/uart.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_MCFUART
+extern void uart_port_conf(void);
+
+int serial_init(void)
+{
+	volatile uart_t *uart;
+	u32 counter;
+
+	uart = (volatile uart_t *)(CFG_UART_BASE);
+
+	uart_port_conf();
+
+	/* write to SICR: SIM2 = uart mode,dcd does not affect rx */
+	uart->ucr = UART_UCR_RESET_RX;
+	uart->ucr = UART_UCR_RESET_TX;
+	uart->ucr = UART_UCR_RESET_ERROR;
+	uart->ucr = UART_UCR_RESET_MR;
+	__asm__("nop");
+
+	uart->uimr = 0;
+
+	/* write to CSR: RX/TX baud rate from timers */
+	uart->ucsr = (UART_UCSR_RCS_SYS_CLK | UART_UCSR_TCS_SYS_CLK);
+
+	uart->umr = (UART_UMR_BC_8 | UART_UMR_PM_NONE);
+	uart->umr = UART_UMR_SB_STOP_BITS_1;
+
+	/* Setting up BaudRate */
+	counter = (u32) (gd->bus_clk / (gd->baudrate));
+	counter >>= 5;
+
+	/* write to CTUR: divide counter upper byte */
+	uart->ubg1 = (u8) ((counter & 0xff00) >> 8);
+	/* write to CTLR: divide counter lower byte */
+	uart->ubg2 = (u8) (counter & 0x00ff);
+
+	uart->ucr = (UART_UCR_RX_ENABLED | UART_UCR_TX_ENABLED);
+
+	return (0);
+}
+
+void serial_putc(const char c)
+{
+	volatile uart_t *uart = (volatile uart_t *)(CFG_UART_BASE);
+
+	if (c == '\n')
+		serial_putc('\r');
+
+	/* Wait for last character to go. */
+	while (!(uart->usr & UART_USR_TXRDY)) ;
+
+	uart->utb = c;
+}
+
+void serial_puts(const char *s)
+{
+	while (*s) {
+		serial_putc(*s++);
+	}
+}
+
+int serial_getc(void)
+{
+	volatile uart_t *uart = (volatile uart_t *)(CFG_UART_BASE);
+
+	/* Wait for a character to arrive. */
+	while (!(uart->usr & UART_USR_RXRDY)) ;
+	return uart->urb;
+}
+
+int serial_tstc(void)
+{
+	volatile uart_t *uart = (volatile uart_t *)(CFG_UART_BASE);
+
+	return (uart->usr & UART_USR_RXRDY);
+}
+
+void serial_setbrg(void)
+{
+	volatile uart_t *uart = (volatile uart_t *)(CFG_UART_BASE);
+	u32 counter;
+
+	counter = ((gd->bus_clk / gd->baudrate)) >> 5;
+	counter++;
+
+	/* write to CTUR: divide counter upper byte */
+	uart->ubg1 = ((counter & 0xff00) >> 8);
+	/* write to CTLR: divide counter lower byte */
+	uart->ubg2 = (counter & 0x00ff);
+
+	uart->ucr = UART_UCR_RESET_RX;
+	uart->ucr = UART_UCR_RESET_TX;
+
+	uart->ucr = UART_UCR_RX_ENABLED | UART_UCR_TX_ENABLED;
+}
+#endif				/* CONFIG_MCFUART */