[ADS5121] Support for the ADS5121 board

The following MPC5121e subsystems are supported:

- low-level CPU init
- NOR Boot Flash (common CFI driver)
- DDR SDRAM
- FEC
- I2C
- Watchdog

Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
Signed-off-by: Rafal Jaworowski <raj@semihalf.com>
Signed-off-by: Jan Wrobel <wrr@semihalf.com>

12 files changed, 3119 insertions, 0 deletions

diff --git a/cpu/mpc512x/Makefile b/cpu/mpc512x/Makefile
new file mode 100644
index 0000000..2be35b2
--- /dev/null
+++ b/cpu/mpc512x/Makefile
@@ -0,0 +1,46 @@
+#
+# (C) Copyright 2007 DENX Software Engineering
+#
+# 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	= $(obj)lib$(CPU).a
+
+START	= start.o
+COBJS	= traps.o cpu.o cpu_init.o speed.o interrupts.o serial.o fec.o i2c.o
+
+SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+START	:= $(addprefix $(obj),$(START))
+
+all:	$(obj).depend $(START) $(LIB)
+
+$(LIB):	$(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/cpu/mpc512x/config.mk b/cpu/mpc512x/config.mk
new file mode 100644
index 0000000..8a07c5a
--- /dev/null
+++ b/cpu/mpc512x/config.mk
@@ -0,0 +1,25 @@
+#
+# (C) Copyright 2007 DENX Software Engineering
+#
+# 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
+#
+PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi
+
+PLATFORM_CPPFLAGS += -DCONFIG_MPC512X -DCONFIG_E300 \
+			-ffixed-r2 -ffixed-r29 -msoft-float -mcpu=603e
diff --git a/cpu/mpc512x/cpu.c b/cpu/mpc512x/cpu.c
new file mode 100644
index 0000000..3be565a
--- /dev/null
+++ b/cpu/mpc512x/cpu.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2004-2006 Freescale Semiconductor, Inc.
+ * (C) Copyright 2007 DENX Software Engineering
+ *
+ * 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
+ */
+
+/*
+ * CPU specific code for the MPC512x family.
+ *
+ * Derived from the MPC83xx code.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <mpc512x.h>
+#include <asm/processor.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkcpu (void)
+{
+	volatile immap_t *immr = (immap_t *) CFG_IMMR;
+	ulong clock = gd->cpu_clk;
+	u32 pvr = get_pvr ();
+	u32 spridr = immr->sysconf.spridr;
+	char buf[32];
+
+	puts("CPU: ");
+
+	switch (spridr & 0xffff0000) {
+	case SPR_5121E:
+		puts ("MPC5121e ");
+		break;
+	default:
+		printf ("Unknown part ID %08x ", spridr & 0xffff0000);
+	}
+	printf ("rev. %d.%d, Core ", SVR_MJREV (spridr), SVR_MNREV (spridr));
+
+	switch (pvr & 0xffff0000) {
+	case PVR_E300C4:
+		puts ("e300c4 ");
+		break;
+	default:
+		puts ("unknown ");
+	}
+	printf ("at %s MHz, CSB at %3d MHz\n", strmhz(buf, clock),
+		gd->csb_clk / 1000000);
+	return 0;
+}
+
+
+int
+do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	ulong msr;
+	volatile immap_t *immap = (immap_t *) CFG_IMMR;
+
+	/* Interrupts and MMU off */
+	__asm__ __volatile__ ("mfmsr    %0":"=r" (msr):);
+
+	msr &= ~( MSR_EE | MSR_IR | MSR_DR);
+	__asm__ __volatile__ ("mtmsr    %0"::"r" (msr));
+
+	/*
+	 * Enable Reset Control Reg - "RSTE" is the magic word that let us go
+	 */
+	immap->reset.rpr = 0x52535445;
+
+	/* Verify Reset Control Reg is enabled */
+	while (!((immap->reset.rcer) & RCER_CRE))
+		;
+
+	printf ("Resetting the board.\n");
+	udelay(200);
+
+	/* Perform reset */
+	immap->reset.rcr = RCR_SWHR;
+
+	/* Unreached... */
+	return 1;
+}
+
+
+/*
+ * Get timebase clock frequency (like cpu_clk in Hz)
+ */
+unsigned long get_tbclk (void)
+{
+	ulong tbclk;
+
+	tbclk = (gd->bus_clk + 3L) / 4L;
+
+	return tbclk;
+}
+
+
+#if defined(CONFIG_WATCHDOG)
+void watchdog_reset (void)
+{
+	int re_enable = disable_interrupts ();
+
+	/* Reset watchdog */
+	volatile immap_t *immr = (immap_t *) CFG_IMMR;
+	immr->wdt.swsrr = 0x556c;
+	immr->wdt.swsrr = 0xaa39;
+
+	if (re_enable)
+		enable_interrupts ();
+}
+#endif
diff --git a/cpu/mpc512x/cpu_init.c b/cpu/mpc512x/cpu_init.c
new file mode 100644
index 0000000..566e08b
--- /dev/null
+++ b/cpu/mpc512x/cpu_init.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2004-2006 Freescale Semiconductor, Inc.
+ * (C) Copyright 2007 DENX Software Engineering
+ *
+ * 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
+ *
+ * Derived from the MPC83xx code.
+ *
+ */
+
+#include <common.h>
+#include <mpc512x.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Set up the memory map, initialize registers,
+ */
+void cpu_init_f (volatile immap_t * im)
+{
+	u32 ips_div;
+
+	/* Pointer is writable since we allocated a register for it */
+	gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
+
+	/* Clear initial global data */
+	memset ((void *) gd, 0, sizeof (gd_t));
+
+	/* system performance tweaking */
+
+#ifdef CFG_ACR_PIPE_DEP
+	/* Arbiter pipeline depth */
+	im->arbiter.acr = (im->arbiter.acr & ~ACR_PIPE_DEP) |
+			  (CFG_ACR_PIPE_DEP << ACR_PIPE_DEP_SHIFT);
+#endif
+
+#ifdef CFG_ACR_RPTCNT
+	/* Arbiter repeat count */
+	im->arbiter.acr = ((im->arbiter.acr & ~(ACR_RPTCNT)) |
+			   (CFG_ACR_RPTCNT << ACR_RPTCNT_SHIFT));
+#endif
+
+	/* RSR - Reset Status Register - clear all status */
+	gd->reset_status = im->reset.rsr;
+	im->reset.rsr = ~(RSR_RES);
+
+	/*
+	 * RMR - Reset Mode Register - enable checkstop reset
+	 */
+	im->reset.rmr = (RMR_CSRE & (1 << RMR_CSRE_SHIFT));
+
+	/* Set IPS-CSB divider: IPS = 1/2 CSB */
+	ips_div = im->clk.scfr[0];
+	ips_div &= ~(SCFR1_IPS_DIV_MASK);
+	ips_div |= SCFR1_IPS_DIV << SCFR1_IPS_DIV_SHIFT;
+	im->clk.scfr[0] = ips_div;
+
+	/*
+	 * Enable Time Base/Decrementer
+	 *
+	 * NOTICE: TB needs to be enabled as early as possible in order to
+	 * have udelay() working; if not enabled, usually leads to a hang, like
+	 * during FLASH chip identification etc. 
+	 */
+	im->sysconf.spcr |= SPCR_TBEN;
+}
+
+int cpu_init_r (void)
+{
+	return 0;
+}
diff --git a/cpu/mpc512x/fec.c b/cpu/mpc512x/fec.c
new file mode 100644
index 0000000..f1b7a25
--- /dev/null
+++ b/cpu/mpc512x/fec.c
@@ -0,0 +1,801 @@
+/*
+ * (C) Copyright 2003-2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Derived from the MPC8xx FEC driver.
+ * Adapted for MPC512x by Grzegorz Bernacki <gjb@semihalf.com>
+ */
+
+#include <common.h>
+#include <mpc512x.h>
+#include <malloc.h>
+#include <net.h>
+#include <miiphy.h>
+#include "fec.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define DEBUG 0
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI) && \
+	defined(CONFIG_MPC512x_FEC)
+
+#if !(defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII))
+#error "CONFIG_MII has to be defined!"
+#endif
+
+#if (DEBUG & 0x40)
+static uint32 local_crc32(char *string, unsigned int crc_value, int len);
+#endif
+
+int fec512x_miiphy_read(char *devname, uint8 phyAddr, uint8 regAddr, uint16 * retVal);
+int fec512x_miiphy_write(char *devname, uint8 phyAddr, uint8 regAddr, uint16 data);
+int mpc512x_fec_init_phy(struct eth_device *dev, bd_t * bis);
+
+/********************************************************************/
+#if (DEBUG & 0x2)
+static void mpc512x_fec_phydump (char *devname)
+{
+	uint16 phyStatus, i;
+	uint8 phyAddr = CONFIG_PHY_ADDR;
+	uint8 reg_mask[] = {
+		/* regs to print: 0...8, 21,27,31 */
+		1, 1, 1, 1,  1, 1, 1, 1,     1, 0, 0, 0,  0, 0, 0, 0,
+		0, 0, 0, 0,  0, 1, 0, 0,     0, 0, 0, 1,  0, 0, 0, 1,
+	};
+
+	for (i = 0; i < 32; i++) {
+		if (reg_mask[i]) {
+			miiphy_read (devname, phyAddr, i, &phyStatus);
+			printf ("Mii reg %d: 0x%04x\n", i, phyStatus);
+		}
+	}
+}
+#endif
+
+/********************************************************************/
+static int mpc512x_fec_bd_init (mpc512x_fec_priv *fec)
+{
+	int ix;
+
+	/*
+	 * Receive BDs init
+	 */
+	for (ix = 0; ix < FEC_RBD_NUM; ix++) {
+		fec->bdBase->rbd[ix].dataPointer = (uint32)&fec->bdBase->recv_frames[ix];
+		fec->bdBase->rbd[ix].status = FEC_RBD_EMPTY;
+		fec->bdBase->rbd[ix].dataLength = 0;
+	}
+
+	/*
+	 * have the last RBD to close the ring
+	 */
+	fec->bdBase->rbd[ix - 1].status |= FEC_RBD_WRAP;
+	fec->rbdIndex = 0;
+
+	/*
+	 * Trasmit BDs init
+	 */
+	for (ix = 0; ix < FEC_TBD_NUM; ix++) {
+                fec->bdBase->tbd[ix].status = 0;
+        }
+
+        /*
+         * Have the last TBD to close the ring
+         */
+        fec->bdBase->tbd[ix - 1].status |= FEC_TBD_WRAP;
+
+        /*
+         * Initialize some indices
+         */
+        fec->tbdIndex = 0;
+        fec->usedTbdIndex = 0;
+        fec->cleanTbdNum = FEC_TBD_NUM;
+
+	return 0;
+}
+
+/********************************************************************/
+static void mpc512x_fec_rbd_clean (mpc512x_fec_priv *fec, volatile FEC_RBD * pRbd)
+{
+	/*
+	 * Reset buffer descriptor as empty
+	 */
+	if ((fec->rbdIndex) == (FEC_RBD_NUM - 1))
+		pRbd->status = (FEC_RBD_WRAP | FEC_RBD_EMPTY);
+	else
+		pRbd->status = FEC_RBD_EMPTY;
+
+	pRbd->dataLength = 0;
+
+	/*
+	 * Increment BD count
+	 */
+	fec->rbdIndex = (fec->rbdIndex + 1) % FEC_RBD_NUM;
+
+	/*
+	 * Now, we have an empty RxBD, notify FEC
+	 */
+	fec->eth->r_des_active = 0x01000000;	/* Descriptor polling active */
+}
+
+/********************************************************************/
+static void mpc512x_fec_tbd_scrub (mpc512x_fec_priv *fec)
+{
+	volatile FEC_TBD *pUsedTbd;
+
+#if (DEBUG & 0x1)
+	printf ("tbd_scrub: fec->cleanTbdNum = %d, fec->usedTbdIndex = %d\n",
+		fec->cleanTbdNum, fec->usedTbdIndex);
+#endif
+
+	/*
+	 * process all the consumed TBDs
+	 */
+	while (fec->cleanTbdNum < FEC_TBD_NUM) {
+		pUsedTbd = &fec->bdBase->tbd[fec->usedTbdIndex];
+		if (pUsedTbd->status & FEC_TBD_READY) {
+#if (DEBUG & 0x20)
+			printf ("Cannot clean TBD %d, in use\n", fec->usedTbdIndex);
+#endif
+			return;
+		}
+
+		/*
+		 * clean this buffer descriptor
+		 */
+		if (fec->usedTbdIndex == (FEC_TBD_NUM - 1))
+			pUsedTbd->status = FEC_TBD_WRAP;
+		else
+			pUsedTbd->status = 0;
+
+		/*
+		 * update some indeces for a correct handling of the TBD ring
+		 */
+		fec->cleanTbdNum++;
+		fec->usedTbdIndex = (fec->usedTbdIndex + 1) % FEC_TBD_NUM;
+	}
+}
+
+/********************************************************************/
+static void mpc512x_fec_set_hwaddr (mpc512x_fec_priv *fec, char *mac)
+{
+	uint8 currByte;			/* byte for which to compute the CRC */
+	int byte;			/* loop - counter */
+	int bit;			/* loop - counter */
+	uint32 crc = 0xffffffff;	/* initial value */
+
+	/*
+	 * The algorithm used is the following:
+	 * we loop on each of the six bytes of the provided address,
+	 * and we compute the CRC by left-shifting the previous
+	 * value by one position, so that each bit in the current
+	 * byte of the address may contribute the calculation. If
+	 * the latter and the MSB in the CRC are different, then
+	 * the CRC value so computed is also ex-ored with the
+	 * "polynomium generator". The current byte of the address
+	 * is also shifted right by one bit at each iteration.
+	 * This is because the CRC generatore in hardware is implemented
+	 * as a shift-register with as many ex-ores as the radixes
+	 * in the polynomium. This suggests that we represent the
+	 * polynomiumm itself as a 32-bit constant.
+	 */
+	for (byte = 0; byte < 6; byte++) {
+		currByte = mac[byte];
+		for (bit = 0; bit < 8; bit++) {
+			if ((currByte & 0x01) ^ (crc & 0x01)) {
+				crc >>= 1;
+				crc = crc ^ 0xedb88320;
+			} else {
+				crc >>= 1;
+			}
+			currByte >>= 1;
+		}
+	}
+
+	crc = crc >> 26;
+
+	/*
+	 * Set individual hash table register
+	 */
+	if (crc >= 32) {
+		fec->eth->iaddr1 = (1 << (crc - 32));
+		fec->eth->iaddr2 = 0;
+	} else {
+		fec->eth->iaddr1 = 0;
+		fec->eth->iaddr2 = (1 << crc);
+	}
+
+	/*
+	 * Set physical address
+	 */
+	fec->eth->paddr1 = (mac[0] << 24) + (mac[1] << 16) + (mac[2] << 8) + mac[3];
+	fec->eth->paddr2 = (mac[4] << 24) + (mac[5] << 16) + 0x8808;
+}
+
+/********************************************************************/
+static int mpc512x_fec_init (struct eth_device *dev, bd_t * bis)
+{
+	mpc512x_fec_priv *fec = (mpc512x_fec_priv *)dev->priv;
+
+#if (DEBUG & 0x1)
+	printf ("mpc512x_fec_init... Begin\n");
+#endif
+
+	/* Set interrupt mask register */
+	fec->eth->imask = 0x00000000;
+
+	/* Clear FEC-Lite interrupt event register(IEVENT) */
+	fec->eth->ievent = 0xffffffff;
+
+	/* Set transmit fifo watermark register(X_WMRK), default = 64 */
+	fec->eth->x_wmrk = 0x0;
+
+	/* Set Opcode/Pause Duration Register */
+	fec->eth->op_pause = 0x00010020;
+
+	/* Frame length=1518; MII mode */
+	fec->eth->r_cntrl = 0x05ee000c;
+
+	/* Half-duplex, heartbeat disabled */
+	fec->eth->x_cntrl = 0x00000000; 
+
+	/* Enable MIB counters */
+	fec->eth->mib_control = 0x0;
+
+	/* Setup recv fifo start and buff size */
+	fec->eth->r_fstart = 0x500;
+	fec->eth->r_buff_size = 0x5e0;
+
+	/* Setup BD base addresses */
+	fec->eth->r_des_start = (uint32)fec->bdBase->rbd;
+	fec->eth->x_des_start = (uint32)fec->bdBase->tbd;
+
+	/* DMA Control */
+	fec->eth->dma_control = 0xc0000000;
+
+	/* Enable FEC */
+	fec->eth->ecntrl |= 0x00000006;
+
+	/* Initilize addresses and status words of BDs */
+	mpc512x_fec_bd_init (fec);
+
+	 /* Descriptor polling active */	
+	fec->eth->r_des_active = 0x01000000;
+
+#if (DEBUG & 0x1)
+	printf("mpc512x_fec_init... Done \n");
+#endif
+	return 1;
+}
+
+/********************************************************************/
+int mpc512x_fec_init_phy (struct eth_device *dev, bd_t * bis)
+{
+	mpc512x_fec_priv *fec = (mpc512x_fec_priv *)dev->priv;
+	const uint8 phyAddr = CONFIG_PHY_ADDR;	/* Only one PHY */
+	int timeout = 1;
+	uint16 phyStatus;
+
+#if (DEBUG & 0x1)
+	printf ("mpc512x_fec_init_phy... Begin\n");
+#endif
+
+	/*
+	 * Clear FEC-Lite interrupt event register(IEVENT)
+	 */
+	fec->eth->ievent = 0xffffffff;
+
+	/*
+	 * Set interrupt mask register
+	 */
+	fec->eth->imask = 0x00000000;
+
+	if (fec->xcv_type != SEVENWIRE) {
+		/*
+		 * Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
+		 * and do not drop the Preamble.
+		 */
+		fec->eth->mii_speed = (((gd->ipb_clk / 1000000) / 5) + 1) << 1;	
+
+		/*
+		 * Reset PHY, then delay 300ns
+		 */
+		miiphy_write (dev->name, phyAddr, 0x0, 0x8000);
+		udelay (1000);
+
+		if (fec->xcv_type == MII10) {
+		/*
+		 * Force 10Base-T, FDX operation
+		 */
+#if (DEBUG & 0x2)
+			printf ("Forcing 10 Mbps ethernet link... ");
+#endif
+			miiphy_read (dev->name, phyAddr, 0x1, &phyStatus);
+			
+			miiphy_write (dev->name, phyAddr, 0x0, 0x0180);
+
+			timeout = 20;
+			do {    /* wait for link status to go down */
+				udelay (10000);
+				if ((timeout--) == 0) {
+#if (DEBUG & 0x2)
+					printf ("hmmm, should not have waited...");
+#endif
+					break;
+				}
+				miiphy_read (dev->name, phyAddr, 0x1, &phyStatus);
+#if (DEBUG & 0x2)
+				printf ("=");
+#endif
+			} while ((phyStatus & 0x0004)); /* !link up */
+
+			timeout = 1000;
+			do {    /* wait for link status to come back up */
+				udelay (10000);
+				if ((timeout--) == 0) {
+					printf ("failed. Link is down.\n");
+					break;
+				}
+				miiphy_read (dev->name, phyAddr, 0x1, &phyStatus);
+#if (DEBUG & 0x2)
+				printf ("+");
+#endif
+			} while (!(phyStatus & 0x0004)); /* !link up */
+
+#if (DEBUG & 0x2)
+			printf ("done.\n");
+#endif
+		} else {        /* MII100 */
+			/*
+			 * Set the auto-negotiation advertisement register bits
+			 */
+			miiphy_write (dev->name, phyAddr, 0x4, 0x01e1);
+
+			/*
+			 * Set MDIO bit 0.12 = 1(&& bit 0.9=1?) to enable auto-negotiation
+			 */
+			miiphy_write (dev->name, phyAddr, 0x0, 0x1200);
+
+			/*
+			 * Wait for AN completion
+			 */
+			timeout = 50000;
+			do {
+				udelay (1000);
+
+				if ((timeout--) == 0) {
+#if (DEBUG & 0x2)
+					printf ("PHY auto neg 0 failed...\n");
+#endif
+					return -1;
+				}
+
+				if (miiphy_read (dev->name, phyAddr, 0x1, &phyStatus) != 0) {
+#if (DEBUG & 0x2)
+					printf ("PHY auto neg 1 failed 0x%04x...\n", phyStatus);
+#endif
+					return -1;
+				}
+			} while (!(phyStatus & 0x0004));
+
+#if (DEBUG & 0x2)
+			printf ("PHY auto neg complete! \n");
+#endif
+		}
+	}
+
+#if (DEBUG & 0x2)
+	if (fec->xcv_type != SEVENWIRE)
+		mpc512x_fec_phydump (dev->name);
+#endif
+
+#if (DEBUG & 0x1)
+	printf ("mpc512x_fec_init_phy... Done \n");
+#endif
+	return 1;
+}
+
+/********************************************************************/
+static void mpc512x_fec_halt (struct eth_device *dev)
+{
+	mpc512x_fec_priv *fec = (mpc512x_fec_priv *)dev->priv;
+	int counter = 0xffff;
+
+#if (DEBUG & 0x2)
+	if (fec->xcv_type != SEVENWIRE)
+		mpc512x_fec_phydump (dev->name);
+#endif
+
+	/*
+	 * mask FEC chip interrupts
+	 */
+	fec->eth->imask = 0;
+
+	/*
+	 * issue graceful stop command to the FEC transmitter if necessary
+	 */
+	fec->eth->x_cntrl |= 0x00000001;
+
+	/*
+	 * wait for graceful stop to register
+	 */
+	while ((counter--) && (!(fec->eth->ievent & 0x10000000))) ;
+
+	/*
+	 * Disable the Ethernet Controller
+	 */
+	fec->eth->ecntrl &= 0xfffffffd;
+
+	/*
+	 * Issue a reset command to the FEC chip
+	 */
+	fec->eth->ecntrl |= 0x1;
+
+	/*
+	 * wait at least 16 clock cycles
+	 */
+	udelay (10);
+#if (DEBUG & 0x3)
+	printf ("Ethernet task stopped\n");
+#endif
+}
+
+/********************************************************************/
+
+static int mpc512x_fec_send (struct eth_device *dev, volatile void *eth_data,
+		int data_length)
+{
+	/*
+	 * This routine transmits one frame.  This routine only accepts
+	 * 6-byte Ethernet addresses.
+	 */
+	mpc512x_fec_priv *fec = (mpc512x_fec_priv *)dev->priv;
+	volatile FEC_TBD *pTbd;
+
+#if (DEBUG & 0x20)
+	printf("tbd status: 0x%04x\n", fec->tbdBase[fec->tbdIndex].status);
+#endif
+
+	/*
+	 * Clear Tx BD ring at first
+	 */
+	mpc512x_fec_tbd_scrub (fec);
+
+	/*
+	 * Check for valid length of data.
+	 */
+	if ((data_length > 1500) || (data_length <= 0)) {
+		return -1;
+	}
+
+	/*
+	 * Check the number of vacant TxBDs.
+	 */
+	if (fec->cleanTbdNum < 1) {
+#if (DEBUG & 0x20)
+		printf ("No available TxBDs ...\n");
+#endif
+		return -1;
+	}
+
+	/*
+	 * Get the first TxBD to send the mac header
+	 */
+	pTbd = &fec->bdBase->tbd[fec->tbdIndex];
+	pTbd->dataLength = data_length;
+	pTbd->dataPointer = (uint32)eth_data;
+	pTbd->status |= FEC_TBD_LAST | FEC_TBD_TC | FEC_TBD_READY;
+	fec->tbdIndex = (fec->tbdIndex + 1) % FEC_TBD_NUM;
+	
+	/* Activate transmit Buffer Descriptor polling */
+	fec->eth->x_des_active = 0x01000000;	/* Descriptor polling active	*/
+
+#if (DEBUG & 0x8)
+	printf ( "+" );
+#endif
+
+	fec->cleanTbdNum -= 1;
+
+	/*
+	 * wait until frame is sent .
+	 */
+	while (pTbd->status & FEC_TBD_READY) {
+		udelay (10);
+#if (DEBUG & 0x8)
+		printf ("TDB status = %04x\n", pTbd->status);
+#endif
+	}
+
+	return 0;
+}
+
+
+/********************************************************************/
+static int mpc512x_fec_recv (struct eth_device *dev)
+{
+	/*
+	 * This command pulls one frame from the card
+	 */
+	mpc512x_fec_priv *fec = (mpc512x_fec_priv *)dev->priv;
+	volatile FEC_RBD *pRbd = &fec->bdBase->rbd[fec->rbdIndex];
+	unsigned long ievent;
+	int frame_length, len = 0;
+	uchar buff[FEC_MAX_PKT_SIZE];
+
+#if (DEBUG & 0x1)
+	printf ("mpc512x_fec_recv %d Start...\n", fec->rbdIndex);
+#endif
+#if (DEBUG & 0x8)
+	printf( "-" );
+#endif
+	
+	/*
+	 * Check if any critical events have happened
+	 */
+	ievent = fec->eth->ievent;
+	fec->eth->ievent = ievent;
+	if (ievent & 0x20060000) {
+		/* BABT, Rx/Tx FIFO errors */
+		mpc512x_fec_halt (dev);
+		mpc512x_fec_init (dev, NULL);
+		return 0;
+	}
+	if (ievent & 0x80000000) {
+		/* Heartbeat error */
+		fec->eth->x_cntrl |= 0x00000001;
+	}
+	if (ievent & 0x10000000) {
+		/* Graceful stop complete */
+		if (fec->eth->x_cntrl & 0x00000001) {
+			mpc512x_fec_halt (dev);
+			fec->eth->x_cntrl &= ~0x00000001;
+			mpc512x_fec_init (dev, NULL);
+		}
+	}
+
+	if (!(pRbd->status & FEC_RBD_EMPTY)) {
+		if ((pRbd->status & FEC_RBD_LAST) && 
+			!(pRbd->status & FEC_RBD_ERR) &&
+			((pRbd->dataLength - 4) > 14)) {
+			
+			/*
+			 * Get buffer size
+			 */
+			frame_length = pRbd->dataLength - 4;
+
+#if (DEBUG & 0x20)
+			{
+				int i;
+				printf ("recv data hdr:");
+				for (i = 0; i < 14; i++)
+					printf ("%x ", *((uint8*)pRbd->dataPointer + i));
+				printf("\n");
+			}
+#endif
+
+			/*
+			 *  Fill the buffer and pass it to upper layers
+			 */
+			memcpy (buff, (void*)pRbd->dataPointer, frame_length);
+			NetReceive ((uchar*)buff, frame_length);
+			len = frame_length;
+		}
+
+		/*
+		 * Reset buffer descriptor as empty
+		 */
+		mpc512x_fec_rbd_clean (fec, pRbd);
+	}
+
+	/* Try to fill Buffer Descriptors */
+	fec->eth->r_des_active = 0x01000000;	/* Descriptor polling active */
+	return len;
+}
+
+/********************************************************************/
+int mpc512x_fec_initialize (bd_t * bis)
+{
+
+	immap_t *im = (immap_t*) CFG_IMMR;
+	mpc512x_fec_priv *fec;
+	struct eth_device *dev;
+	int i;
+	char *tmp, *end, env_enetaddr[6];
+	uint32 *reg;
+	void * bd;
+
+	fec = (mpc512x_fec_priv *) malloc (sizeof(*fec));
+	dev = (struct eth_device *) malloc (sizeof(*dev));
+	memset (dev, 0, sizeof *dev);
+
+	fec->eth = (ethernet_regs *) MPC512X_FEC;
+
+# ifndef CONFIG_FEC_10MBIT
+	fec->xcv_type = MII100;
+# else
+	fec->xcv_type = MII10;
+# endif
+	dev->priv = (void *)fec;
+	dev->iobase = MPC512X_FEC;
+	dev->init = mpc512x_fec_init;
+	dev->halt = mpc512x_fec_halt;
+	dev->send = mpc512x_fec_send;
+	dev->recv = mpc512x_fec_recv;
+
+	sprintf (dev->name, "FEC ETHERNET");
+	eth_register (dev);
+
+#if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
+	miiphy_register (dev->name,
+			fec512x_miiphy_read, fec512x_miiphy_write);
+#endif
+
+	/*
+	 * Initialize I\O pins
+	 */
+	reg = (uint32 *) &(im->io_ctrl.regs[PSC0_0_IDX]);
+	
+	for (i = 0; i < 15; i++)
+		reg[i] = IOCTRL_MUX_FEC | 0x00000001;
+
+	im->io_ctrl.regs[SPDIF_TXCLOCK_IDX] = IOCTRL_MUX_FEC | 0x00000001;
+	im->io_ctrl.regs[SPDIF_TX_IDX] = IOCTRL_MUX_FEC | 0x00000001;
+	im->io_ctrl.regs[SPDIF_RX_IDX] = IOCTRL_MUX_FEC | 0x00000001;
+
+	/* Clean up space FEC's MIB and FIFO RAM ...*/
+	memset ((void *) MPC512X_FEC + 0x200, 0x00, 0x400);
+	
+	/* 
+	 * Malloc space for BDs  (must be quad word-aligned)
+	 * this pointer is lost, so cannot be freed 
+	 */
+	bd = malloc (sizeof(mpc512x_buff_descs) + 0x1f);
+	fec->bdBase = (mpc512x_buff_descs*)((uint32)bd & 0xfffffff0); 
+	memset ((void *) bd, 0x00, sizeof(mpc512x_buff_descs) + 0x1f);
+
+	/*
+	 * Set interrupt mask register
+	 */
+	fec->eth->imask = 0x00000000;
+
+	/*
+	 * Clear FEC-Lite interrupt event register(IEVENT)
+	 */
+	fec->eth->ievent = 0xffffffff;
+
+	/*
+	 * Try to set the mac address now. The fec mac address is
+	 * a garbage after reset. When not using fec for booting
+	 * the Linux fec driver will try to work with this garbage.
+	 */
+	tmp = getenv ("ethaddr");
+	if (tmp) {
+		for (i=0; i<6; i++) {
+			env_enetaddr[i] = tmp ? simple_strtoul (tmp, &end, 16) : 0;
+			if (tmp)
+				tmp = (*end) ? end+1 : end;
+		}
+		mpc512x_fec_set_hwaddr (fec, env_enetaddr);
+		fec->eth->gaddr1 = 0x00000000;
+		fec->eth->gaddr2 = 0x00000000;
+	}
+
+	mpc512x_fec_init_phy (dev, bis);
+
+	return 1;
+}
+
+/* MII-interface related functions */
+/********************************************************************/
+int fec512x_miiphy_read (char *devname, uint8 phyAddr, uint8 regAddr, uint16 * retVal)
+{
+	ethernet_regs *eth = (ethernet_regs *) MPC512X_FEC;
+	uint32 reg;		/* convenient holder for the PHY register */
+	uint32 phy;		/* convenient holder for the PHY */
+	int timeout = 0xffff;
+
+	/*
+	 * reading from any PHY's register is done by properly
+	 * programming the FEC's MII data register.
+	 */
+	reg = regAddr << FEC_MII_DATA_RA_SHIFT;
+	phy = phyAddr << FEC_MII_DATA_PA_SHIFT;
+
+	eth->mii_data = (FEC_MII_DATA_ST | FEC_MII_DATA_OP_RD | FEC_MII_DATA_TA | phy | reg);
+
+	/*
+	 * wait for the related interrupt
+	 */
+	while ((timeout--) && (!(eth->ievent & 0x00800000))) ;
+
+	if (timeout == 0) {
+#if (DEBUG & 0x2)
+		printf ("Read MDIO failed...\n");
+#endif
+		return -1;
+	}
+
+	/*
+	 * clear mii interrupt bit
+	 */
+	eth->ievent = 0x00800000;
+
+	/*
+	 * it's now safe to read the PHY's register
+	 */
+	*retVal = (uint16) eth->mii_data;
+
+	return 0;
+}
+
+/********************************************************************/
+int fec512x_miiphy_write (char *devname, uint8 phyAddr, uint8 regAddr, uint16 data)
+{
+	ethernet_regs *eth = (ethernet_regs *) MPC512X_FEC;
+	uint32 reg;		/* convenient holder for the PHY register */
+	uint32 phy;		/* convenient holder for the PHY */
+	int timeout = 0xffff;
+
+	reg = regAddr << FEC_MII_DATA_RA_SHIFT;
+	phy = phyAddr << FEC_MII_DATA_PA_SHIFT;
+
+	eth->mii_data = (FEC_MII_DATA_ST | FEC_MII_DATA_OP_WR |
+			FEC_MII_DATA_TA | phy | reg | data);
+
+	/*
+	 * wait for the MII interrupt
+	 */
+	while ((timeout--) && (!(eth->ievent & 0x00800000))) ;
+
+	if (timeout == 0) {
+#if (DEBUG & 0x2)
+		printf ("Write MDIO failed...\n");
+#endif
+		return -1;
+	}
+
+	/*
+	 * clear MII interrupt bit
+	 */
+	eth->ievent = 0x00800000;
+
+	return 0;
+}
+
+#if (DEBUG & 0x40)
+static uint32 local_crc32 (char *string, unsigned int crc_value, int len)
+{
+	int i;
+	char c;
+	unsigned int crc, count;
+
+	/*
+	 * crc32 algorithm
+	 */
+	/*
+	 * crc = 0xffffffff; * The initialized value should be 0xffffffff
+	 */
+	crc = crc_value;
+
+	for (i = len; --i >= 0;) {
+		c = *string++;
+		for (count = 0; count < 8; count++) {
+			if ((c & 0x01) ^ (crc & 0x01)) {
+				crc >>= 1;
+				crc = crc ^ 0xedb88320;
+			} else {
+				crc >>= 1;
+			}
+			c >>= 1;
+		}
+	}
+
+	/*
+	 * In big endian system, do byte swaping for crc value
+	 */
+	 /**/ return crc;
+}
+#endif	/* DEBUG */
+
+#endif /* CONFIG_MPC512x_FEC */
diff --git a/cpu/mpc512x/fec.h b/cpu/mpc512x/fec.h
new file mode 100644
index 0000000..7145919
--- /dev/null
+++ b/cpu/mpc512x/fec.h
@@ -0,0 +1,224 @@
+/*
+ * (C) Copyright 2003 - 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Derived from the MPC8xx driver's header file.
+ */
+
+#ifndef __MPC512X_FEC_H
+#define __MPC512X_FEC_H
+
+#include <common.h>
+#include <mpc512x.h>
+
+typedef unsigned long uint32;
+typedef unsigned short uint16;
+typedef unsigned char uint8;
+
+typedef struct ethernet_register_set {
+
+/* [10:2]addr = 00 */
+
+/*  Control and status Registers (offset 000-1FF) */
+
+	volatile uint32 fec_id;			/* MBAR_ETH + 0x000 */
+	volatile uint32 ievent;			/* MBAR_ETH + 0x004 */
+	volatile uint32 imask;			/* MBAR_ETH + 0x008 */
+
+	volatile uint32 RES0[1];		/* MBAR_ETH + 0x00C */
+	volatile uint32 r_des_active;		/* MBAR_ETH + 0x010 */
+	volatile uint32 x_des_active;		/* MBAR_ETH + 0x014 */
+	
+	volatile uint32 RES1[3];		/* MBAR_ETH + 0x018-020 */
+	volatile uint32 ecntrl;			/* MBAR_ETH + 0x024 */
+
+	volatile uint32 RES2[6];		/* MBAR_ETH + 0x028-03C */
+	volatile uint32 mii_data;		/* MBAR_ETH + 0x040 */
+	volatile uint32 mii_speed;		/* MBAR_ETH + 0x044 */
+
+	volatile uint32 RES3[7];		/* MBAR_ETH + 0x048-060 */
+	volatile uint32 mib_control;		/* MBAR_ETH + 0x064 */
+
+	volatile uint32 RES4[7];		/* MBAR_ETH + 0x068-80 */
+	volatile uint32 r_cntrl;		/* MBAR_ETH + 0x084 */
+	volatile uint32 r_hash;			/* MBAR_ETH + 0x088 */
+	
+	volatile uint32 RES5[14];		/* MBAR_ETH + 0x08c-0C0 */
+	volatile uint32 x_cntrl;		/* MBAR_ETH + 0x0C4 */
+	
+	volatile uint32 RES6[7];		/* MBAR_ETH + 0x0C8-0E0 */
+	volatile uint32 paddr1;			/* MBAR_ETH + 0x0E4 */
+	volatile uint32 paddr2;			/* MBAR_ETH + 0x0E8 */
+	volatile uint32 op_pause;		/* MBAR_ETH + 0x0EC */
+
+	volatile uint32 RES7[10];		/* MBAR_ETH + 0x0F0-114 */
+	volatile uint32 iaddr1;			/* MBAR_ETH + 0x118 */
+	volatile uint32 iaddr2;			/* MBAR_ETH + 0x11C */
+	volatile uint32 gaddr1;			/* MBAR_ETH + 0x120 */
+	volatile uint32 gaddr2;			/* MBAR_ETH + 0x124 */
+
+	volatile uint32 RES8[6];		/* MBAR_ETH + 0x128-13C */
+	volatile uint32 fifo_id;		/* MBAR_ETH + 0x140 */
+	volatile uint32 x_wmrk;			/* MBAR_ETH + 0x144 */
+	volatile uint32 RES9[1];		/* MBAR_ETH + 0x148 */
+	volatile uint32 r_bound;		/* MBAR_ETH + 0x14C */
+	volatile uint32 r_fstart;		/* MBAR_ETH + 0x150 */
+	
+	volatile uint32 RES10[11];		/* MBAR_ETH + 0x154-17C */
+	volatile uint32 r_des_start;		/* MBAR_ETH + 0x180 */
+	volatile uint32 x_des_start;		/* MBAR_ETH + 0x184 */
+	volatile uint32 r_buff_size;		/* MBAR_ETH + 0x188 */
+	volatile uint32 RES11[26];		/* MBAR_ETH + 0x18C-1F0 */
+	volatile uint32 dma_control;		/* MBAR_ETH + 0x1F4 */
+	volatile uint32 RES12[2];		/* MBAR_ETH + 0x1F8-1FC */
+
+/*  MIB COUNTERS (Offset 200-2FF) */
+
+	volatile uint32 rmon_t_drop;		/* MBAR_ETH + 0x200 */
+	volatile uint32 rmon_t_packets;		/* MBAR_ETH + 0x204 */
+	volatile uint32 rmon_t_bc_pkt;		/* MBAR_ETH + 0x208 */
+	volatile uint32 rmon_t_mc_pkt;		/* MBAR_ETH + 0x20C */
+	volatile uint32 rmon_t_crc_align;	/* MBAR_ETH + 0x210 */
+	volatile uint32 rmon_t_undersize;	/* MBAR_ETH + 0x214 */
+	volatile uint32 rmon_t_oversize;	/* MBAR_ETH + 0x218 */
+	volatile uint32 rmon_t_frag;		/* MBAR_ETH + 0x21C */
+	volatile uint32 rmon_t_jab;		/* MBAR_ETH + 0x220 */
+	volatile uint32 rmon_t_col;		/* MBAR_ETH + 0x224 */
+	volatile uint32 rmon_t_p64;		/* MBAR_ETH + 0x228 */
+	volatile uint32 rmon_t_p65to127;	/* MBAR_ETH + 0x22C */
+	volatile uint32 rmon_t_p128to255;	/* MBAR_ETH + 0x230 */
+	volatile uint32 rmon_t_p256to511;	/* MBAR_ETH + 0x234 */
+	volatile uint32 rmon_t_p512to1023;	/* MBAR_ETH + 0x238 */
+	volatile uint32 rmon_t_p1024to2047;	/* MBAR_ETH + 0x23C */
+	volatile uint32 rmon_t_p_gte2048;	/* MBAR_ETH + 0x240 */
+	volatile uint32 rmon_t_octets;		/* MBAR_ETH + 0x244 */
+	volatile uint32 ieee_t_drop;		/* MBAR_ETH + 0x248 */
+	volatile uint32 ieee_t_frame_ok;	/* MBAR_ETH + 0x24C */
+	volatile uint32 ieee_t_1col;		/* MBAR_ETH + 0x250 */
+	volatile uint32 ieee_t_mcol;		/* MBAR_ETH + 0x254 */
+	volatile uint32 ieee_t_def;		/* MBAR_ETH + 0x258 */
+	volatile uint32 ieee_t_lcol;		/* MBAR_ETH + 0x25C */
+	volatile uint32 ieee_t_excol;		/* MBAR_ETH + 0x260 */
+	volatile uint32 ieee_t_macerr;		/* MBAR_ETH + 0x264 */
+	volatile uint32 ieee_t_cserr;		/* MBAR_ETH + 0x268 */
+	volatile uint32 ieee_t_sqe;		/* MBAR_ETH + 0x26C */
+	volatile uint32 t_fdxfc;		/* MBAR_ETH + 0x270 */
+	volatile uint32 ieee_t_octets_ok;	/* MBAR_ETH + 0x274 */
+
+	volatile uint32 RES13[2];		/* MBAR_ETH + 0x278-27C */
+	volatile uint32 rmon_r_drop;		/* MBAR_ETH + 0x280 */
+	volatile uint32 rmon_r_packets;		/* MBAR_ETH + 0x284 */
+	volatile uint32 rmon_r_bc_pkt;		/* MBAR_ETH + 0x288 */
+	volatile uint32 rmon_r_mc_pkt;		/* MBAR_ETH + 0x28C */
+	volatile uint32 rmon_r_crc_align;	/* MBAR_ETH + 0x290 */
+	volatile uint32 rmon_r_undersize;	/* MBAR_ETH + 0x294 */
+	volatile uint32 rmon_r_oversize;	/* MBAR_ETH + 0x298 */
+	volatile uint32 rmon_r_frag;		/* MBAR_ETH + 0x29C */
+	volatile uint32 rmon_r_jab;		/* MBAR_ETH + 0x2A0 */
+
+	volatile uint32 rmon_r_resvd_0;		/* MBAR_ETH + 0x2A4 */
+
+	volatile uint32 rmon_r_p64;		/* MBAR_ETH + 0x2A8 */
+	volatile uint32 rmon_r_p65to127;	/* MBAR_ETH + 0x2AC */
+	volatile uint32 rmon_r_p128to255;	/* MBAR_ETH + 0x2B0 */
+	volatile uint32 rmon_r_p256to511;	/* MBAR_ETH + 0x2B4 */
+	volatile uint32 rmon_r_p512to1023;	/* MBAR_ETH + 0x2B8 */
+	volatile uint32 rmon_r_p1024to2047;	/* MBAR_ETH + 0x2BC */
+	volatile uint32 rmon_r_p_gte2048;	/* MBAR_ETH + 0x2C0 */
+	volatile uint32 rmon_r_octets;		/* MBAR_ETH + 0x2C4 */
+	volatile uint32 ieee_r_drop;		/* MBAR_ETH + 0x2C8 */
+	volatile uint32 ieee_r_frame_ok;	/* MBAR_ETH + 0x2CC */
+	volatile uint32 ieee_r_crc;		/* MBAR_ETH + 0x2D0 */
+	volatile uint32 ieee_r_align;		/* MBAR_ETH + 0x2D4 */
+	volatile uint32 r_macerr;		/* MBAR_ETH + 0x2D8 */
+	volatile uint32 r_fdxfc;		/* MBAR_ETH + 0x2DC */
+	volatile uint32 ieee_r_octets_ok;	/* MBAR_ETH + 0x2E0 */
+
+	volatile uint32 RES14[6];		/* MBAR_ETH + 0x2E4-2FC */
+
+	volatile uint32 RES15[64];		/* MBAR_ETH + 0x300-3FF */
+} ethernet_regs;
+
+/* Receive & Transmit Buffer Descriptor definitions */
+typedef struct BufferDescriptor {
+	uint16 status;
+	uint16 dataLength;
+	uint32 dataPointer;
+} FEC_RBD;
+
+typedef struct {
+	uint16 status;
+	uint16 dataLength;
+	uint32 dataPointer;
+} FEC_TBD;
+
+/* private structure */
+typedef enum {
+	SEVENWIRE,			/* 7-wire       */
+	MII10,				/* MII 10Mbps   */
+	MII100				/* MII 100Mbps  */
+} xceiver_type;
+
+/* BD Numer definitions */
+#define FEC_TBD_NUM		48	/* The user can adjust this value */
+#define FEC_RBD_NUM		32	/* The user can adjust this value */
+
+/* packet size limit */
+#define FEC_MAX_PKT_SIZE	1536
+
+typedef struct {
+	uint8 frame[FEC_MAX_PKT_SIZE];
+} mpc512x_frame;
+
+typedef struct {
+	FEC_RBD rbd[FEC_RBD_NUM];			/* RBD ring */
+	FEC_TBD tbd[FEC_TBD_NUM];			/* TBD ring */
+	mpc512x_frame recv_frames[FEC_RBD_NUM];		/* receive buff */
+} mpc512x_buff_descs;
+
+typedef struct {
+	ethernet_regs *eth;
+	xceiver_type xcv_type;		/* transceiver type */
+	mpc512x_buff_descs *bdBase;	/* BD rings and recv buffer */
+	uint16 rbdIndex;		/* next receive BD to read */
+	uint16 tbdIndex;		/* next transmit BD to send */
+	uint16 usedTbdIndex;		/* next transmit BD to clean */
+	uint16 cleanTbdNum;		/* the number of available transmit BDs */
+} mpc512x_fec_priv;
+
+/* RBD bits definitions */
+#define FEC_RBD_EMPTY		0x8000	/* Buffer is empty */
+#define FEC_RBD_WRAP		0x2000	/* Last BD in ring */
+#define FEC_RBD_LAST		0x0800	/* Buffer is last in frame(useless) */
+#define FEC_RBD_MISS		0x0100	/* Miss bit for prom mode */
+#define FEC_RBD_BC		0x0080	/* The received frame is broadcast frame */
+#define FEC_RBD_MC		0x0040	/* The received frame is multicast frame */
+#define FEC_RBD_LG		0x0020	/* Frame length violation */
+#define FEC_RBD_NO		0x0010	/* Nonoctet align frame */
+#define FEC_RBD_SH		0x0008	/* Short frame */
+#define FEC_RBD_CR		0x0004	/* CRC error */
+#define FEC_RBD_OV		0x0002	/* Receive FIFO overrun */
+#define FEC_RBD_TR		0x0001	/* Frame is truncated */
+#define FEC_RBD_ERR		(FEC_RBD_LG | FEC_RBD_NO | FEC_RBD_CR | \
+				FEC_RBD_OV | FEC_RBD_TR)
+
+/* TBD bits definitions */
+#define FEC_TBD_READY		0x8000	/* Buffer is ready */
+#define FEC_TBD_WRAP		0x2000	/* Last BD in ring */
+#define FEC_TBD_LAST		0x0800	/* Buffer is last in frame */
+#define FEC_TBD_TC		0x0400	/* Transmit the CRC */
+#define FEC_TBD_ABC		0x0200	/* Append bad CRC */
+
+/* MII-related definitios */
+#define FEC_MII_DATA_ST		0x40000000	/* Start of frame delimiter */
+#define FEC_MII_DATA_OP_RD	0x20000000	/* Perform a read operation */
+#define FEC_MII_DATA_OP_WR	0x10000000	/* Perform a write operation */
+#define FEC_MII_DATA_PA_MSK	0x0f800000	/* PHY Address field mask */
+#define FEC_MII_DATA_RA_MSK	0x007c0000	/* PHY Register field mask */
+#define FEC_MII_DATA_TA		0x00020000	/* Turnaround */
+#define FEC_MII_DATA_DATAMSK	0x0000ffff	/* PHY data field */
+
+#define FEC_MII_DATA_RA_SHIFT	18	/* MII Register address bits */
+#define FEC_MII_DATA_PA_SHIFT	23	/* MII PHY address bits */
+
+#endif	/* __MPC512X_FEC_H */
diff --git a/cpu/mpc512x/i2c.c b/cpu/mpc512x/i2c.c
new file mode 100644
index 0000000..00e28d6
--- /dev/null
+++ b/cpu/mpc512x/i2c.c
@@ -0,0 +1,431 @@
+/*
+ * (C) Copyright 2003 - 2007
+ * 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
+ *
+ * Based on the MPC5xxx code.
+ */
+
+#include <common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_HARD_I2C
+
+#include <mpc512x.h>
+#include <i2c.h>
+
+#define immr ((immap_t *)CFG_IMMR)
+
+/* by default set I2C bus 0 active */
+static unsigned int bus_num = 0;
+
+#define I2C_TIMEOUT	100
+#define I2C_RETRIES	3
+
+struct mpc512x_i2c_tap {
+	int scl2tap;
+	int tap2tap;
+};
+
+static int  mpc_reg_in(volatile u32 *reg);
+static void mpc_reg_out(volatile u32 *reg, int val, int mask);
+static int  wait_for_bb(void);
+static int  wait_for_pin(int *status);
+static int  do_address(uchar chip, char rdwr_flag);
+static int  send_bytes(uchar chip, char *buf, int len);
+static int  receive_bytes(uchar chip, char *buf, int len);
+static int  mpc_get_fdr(int);
+
+static int mpc_reg_in (volatile u32 *reg)
+{
+	int ret = *reg >> 24;
+	__asm__ __volatile__ ("eieio");
+	return ret;
+}
+
+static void mpc_reg_out (volatile u32 *reg, int val, int mask)
+{
+	int tmp;
+
+	if (!mask) {
+		*reg = val << 24;
+	} else {
+		tmp = mpc_reg_in (reg);
+		*reg = ((tmp & ~mask) | (val & mask)) << 24;
+	}
+	__asm__ __volatile__ ("eieio");
+
+	return;
+}
+
+static int wait_for_bb (void)
+{
+	i2c512x_dev_t *regs = &immr->i2c.dev[bus_num];
+	int timeout = I2C_TIMEOUT;
+	int status;
+
+	status = mpc_reg_in (&regs->msr);
+
+	while (timeout-- && (status & I2C_BB)) {
+		volatile int temp;
+		mpc_reg_out (&regs->mcr, I2C_STA, I2C_STA);
+		temp = mpc_reg_in (&regs->mdr);
+		mpc_reg_out (&regs->mcr, 0, I2C_STA);
+		mpc_reg_out (&regs->mcr, 0, 0);
+		mpc_reg_out (&regs->mcr, I2C_EN, 0);
+
+		udelay (1000);
+		status = mpc_reg_in (&regs->msr);
+	}
+
+	return (status & I2C_BB);
+}
+
+static int wait_for_pin (int *status)
+{
+	i2c512x_dev_t *regs = &immr->i2c.dev[bus_num];
+	int timeout = I2C_TIMEOUT;
+
+	*status = mpc_reg_in (&regs->msr);
+
+	while (timeout-- && !(*status & I2C_IF)) {
+		udelay (1000);
+		*status = mpc_reg_in (&regs->msr);
+	}
+
+	if (!(*status & I2C_IF)) {
+		return -1;
+	}
+
+	mpc_reg_out (&regs->msr, 0, I2C_IF);
+
+	return 0;
+}
+
+static int do_address (uchar chip, char rdwr_flag)
+{
+	i2c512x_dev_t *regs = &immr->i2c.dev[bus_num];
+	int status;
+
+	chip <<= 1;
+
+	if (rdwr_flag) {
+		chip |= 1;
+	}
+
+	mpc_reg_out (&regs->mcr, I2C_TX, I2C_TX);
+	mpc_reg_out (&regs->mdr, chip, 0);
+
+	if (wait_for_pin (&status)) {
+		return -2;
+	}
+
+	if (status & I2C_RXAK) {
+		return -3;
+	}
+
+	return 0;
+}
+
+static int send_bytes (uchar chip, char *buf, int len)
+{
+	i2c512x_dev_t *regs = &immr->i2c.dev[bus_num];
+	int wrcount;
+	int status;
+
+	for (wrcount = 0; wrcount < len; ++wrcount) {
+
+		mpc_reg_out (&regs->mdr, buf[wrcount], 0);
+
+		if (wait_for_pin (&status)) {
+			break;
+		}
+
+		if (status & I2C_RXAK) {
+			break;
+		}
+
+	}
+
+	return !(wrcount == len);
+}
+
+static int receive_bytes (uchar chip, char *buf, int len)
+{
+	i2c512x_dev_t *regs = &immr->i2c.dev[bus_num];
+	int dummy   = 1;
+	int rdcount = 0;
+	int status;
+	int i;
+
+	mpc_reg_out (&regs->mcr, 0, I2C_TX);
+
+	for (i = 0; i < len; ++i) {
+		buf[rdcount] = mpc_reg_in (&regs->mdr);
+
+		if (dummy) {
+			dummy = 0;
+		} else {
+			rdcount++;
+		}
+
+		if (wait_for_pin (&status)) {
+			return -4;
+		}
+	}
+
+	mpc_reg_out (&regs->mcr, I2C_TXAK, I2C_TXAK);
+	buf[rdcount++] = mpc_reg_in (&regs->mdr);
+
+	if (wait_for_pin (&status)) {
+		return -5;
+	}
+
+	mpc_reg_out (&regs->mcr, 0, I2C_TXAK);
+
+	return 0;
+}
+
+/**************** I2C API ****************/
+
+void i2c_init (int speed, int saddr)
+{
+	int i;
+	for(i = 0; i < I2C_BUS_CNT; i++){
+		i2c512x_dev_t *regs = &immr->i2c.dev[i];
+		mpc_reg_out (&regs->mcr, 0, 0);
+
+		/* Set clock */
+		mpc_reg_out (&regs->mfdr, mpc_get_fdr (speed), 0);
+		mpc_reg_out (&regs->madr, saddr << 1, 0);
+
+		/* Enable module */
+		mpc_reg_out (&regs->mcr, I2C_EN, I2C_INIT_MASK);
+		mpc_reg_out (&regs->msr, 0, I2C_IF);
+	}
+
+	/* Disable interrupts */
+	immr->i2c.icr = 0;
+	/* Turn off filters */
+	immr->i2c.mifr = 0;
+	return;
+}
+
+static int mpc_get_fdr (int speed)
+{
+	static int fdr = -1;
+
+	if (fdr == -1) {
+		ulong best_speed = 0;
+		ulong divider;
+		ulong ipb, scl;
+		ulong bestmatch = 0xffffffffUL;
+		int best_i = 0, best_j = 0, i, j;
+		int SCL_Tap[] = { 9, 10, 12, 15, 5, 6, 7, 8};
+		struct mpc512x_i2c_tap scltap[] = {
+			{4, 1},
+			{4, 2},
+			{6, 4},
+			{6, 8},
+			{14, 16},
+			{30, 32},
+			{62, 64},
+			{126, 128}
+		};
+
+		ipb = gd->ipb_clk;
+		for (i = 7; i >= 0; i--) {
+			for (j = 7; j >= 0; j--) {
+				scl = 2 * (scltap[j].scl2tap +
+					   (SCL_Tap[i] - 1) * scltap[j].tap2tap
+					   + 2);
+				if (ipb <= speed*scl) {
+					if ((speed*scl - ipb) < bestmatch) {
+						bestmatch = speed*scl - ipb;
+						best_i = i;
+						best_j = j;
+						best_speed = ipb/scl;
+					}
+				}
+			}
+		}
+		divider = (best_i & 3) | ((best_i & 4) << 3) | (best_j << 2);
+		if (gd->flags & GD_FLG_RELOC) {
+			fdr = divider;
+		} else {
+			debug("%ld kHz, \n", best_speed / 1000);
+			return divider;
+		}
+	}
+
+	return fdr;
+}
+
+int i2c_probe (uchar chip)
+{
+	i2c512x_dev_t *regs = &immr->i2c.dev[bus_num];
+	int i;
+
+	for (i = 0; i < I2C_RETRIES; i++) {
+		mpc_reg_out (&regs->mcr, I2C_STA, I2C_STA);
+
+		if (! do_address (chip, 0)) {
+			mpc_reg_out (&regs->mcr, 0, I2C_STA);
+			udelay (500);
+			break;
+		}
+
+		mpc_reg_out (&regs->mcr, 0, I2C_STA);
+		udelay (500);
+	}
+
+	return (i == I2C_RETRIES);
+}
+
+int i2c_read (uchar chip, uint addr, int alen, uchar *buf, int len)
+{
+	char xaddr[4];
+	i2c512x_dev_t *regs = &immr->i2c.dev[bus_num];
+	int ret = -1;
+
+	xaddr[0] = (addr >> 24) & 0xFF;
+	xaddr[1] = (addr >> 16) & 0xFF;
+	xaddr[2] = (addr >>  8) & 0xFF;
+	xaddr[3] =  addr	& 0xFF;
+
+	if (wait_for_bb ()) {
+		printf ("i2c_read: bus is busy\n");
+		goto Done;
+	}
+
+	mpc_reg_out (&regs->mcr, I2C_STA, I2C_STA);
+	if (do_address (chip, 0)) {
+		printf ("i2c_read: failed to address chip\n");
+		goto Done;
+	}
+
+	if (send_bytes (chip, &xaddr[4-alen], alen)) {
+		printf ("i2c_read: send_bytes failed\n");
+		goto Done;
+	}
+
+	mpc_reg_out (&regs->mcr, I2C_RSTA, I2C_RSTA);
+	if (do_address (chip, 1)) {
+		printf ("i2c_read: failed to address chip\n");
+		goto Done;
+	}
+
+	if (receive_bytes (chip, (char *)buf, len)) {
+		printf ("i2c_read: receive_bytes failed\n");
+		goto Done;
+	}
+
+	ret = 0;
+Done:
+	mpc_reg_out (&regs->mcr, 0, I2C_STA);
+	return ret;
+}
+
+int i2c_write (uchar chip, uint addr, int alen, uchar *buf, int len)
+{
+	char xaddr[4];
+	i2c512x_dev_t *regs = &immr->i2c.dev[bus_num];
+	int ret = -1;
+
+	xaddr[0] = (addr >> 24) & 0xFF;
+	xaddr[1] = (addr >> 16) & 0xFF;
+	xaddr[2] = (addr >>  8) & 0xFF;
+	xaddr[3] =  addr	& 0xFF;
+
+	if (wait_for_bb ()) {
+		printf ("i2c_write: bus is busy\n");
+		goto Done;
+	}
+
+	mpc_reg_out (&regs->mcr, I2C_STA, I2C_STA);
+	if (do_address (chip, 0)) {
+		printf ("i2c_write: failed to address chip\n");
+		goto Done;
+	}
+
+	if (send_bytes (chip, &xaddr[4-alen], alen)) {
+		printf ("i2c_write: send_bytes failed\n");
+		goto Done;
+	}
+
+	if (send_bytes (chip, (char *)buf, len)) {
+		printf ("i2c_write: send_bytes failed\n");
+		goto Done;
+	}
+
+	ret = 0;
+Done:
+	mpc_reg_out (&regs->mcr, 0, I2C_STA);
+	return ret;
+}
+
+uchar i2c_reg_read (uchar chip, uchar reg)
+{
+	uchar buf;
+
+	i2c_read (chip, reg, 1, &buf, 1);
+
+	return buf;
+}
+
+void i2c_reg_write (uchar chip, uchar reg, uchar val)
+{
+	i2c_write (chip, reg, 1, &val, 1);
+
+	return;
+}
+
+
+int i2c_set_bus_num (unsigned int bus)
+{
+	if (bus >= I2C_BUS_CNT) {
+		return -1;
+	}
+	bus_num = bus;
+
+	return 0;
+}
+
+unsigned int i2c_get_bus_num (void)
+{
+	return bus_num;
+}
+
+/* TODO */
+unsigned int i2c_get_bus_speed (void)
+{
+	return -1;
+}
+
+int i2c_set_bus_speed (unsigned int speed)
+{
+	if (speed != CFG_I2C_SPEED)
+		return -1;
+
+	return 0;
+}
+
+#endif	/* CONFIG_HARD_I2C */
diff --git a/cpu/mpc512x/interrupts.c b/cpu/mpc512x/interrupts.c
new file mode 100644
index 0000000..8cc241c
--- /dev/null
+++ b/cpu/mpc512x/interrupts.c
@@ -0,0 +1,61 @@
+/*
+ * (C) Copyright 2000-2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright 2004 Freescale Semiconductor, Inc.
+ *
+ * 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
+ *
+ * Derived from the MPC83xx code.
+ */
+
+#include <common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct irq_action {
+	interrupt_handler_t *handler;
+	void *arg;
+	ulong count;
+};
+
+int interrupt_init_cpu (unsigned *decrementer_count)
+{
+	*decrementer_count = get_tbclk () / CFG_HZ;
+
+	return 0;
+}
+
+/*
+ * Install and free an interrupt handler.
+ */
+void
+irq_install_handler (int irq, interrupt_handler_t * handler, void *arg)
+{
+}
+
+void irq_free_handler (int irq)
+{
+}
+
+void timer_interrupt_cpu (struct pt_regs *regs)
+{
+	/* nothing to do here */
+	return;
+}
diff --git a/cpu/mpc512x/serial.c b/cpu/mpc512x/serial.c
new file mode 100644
index 0000000..200ff2c
--- /dev/null
+++ b/cpu/mpc512x/serial.c
@@ -0,0 +1,197 @@
+/*
+ * (C) Copyright 2000 - 2007
+ * 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
+ *
+ * Based ont the MPC5200 PSC driver.
+ * Adapted for MPC512x by Jan Wrobel <wrr@semihalf.com>
+ */
+
+/*
+ * Minimal serial functions needed to use one of the PSC ports
+ * as serial console interface.
+ */
+
+#include <common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if defined(CONFIG_PSC_CONSOLE)
+
+static void fifo_init (volatile psc512x_t *psc)
+{
+	volatile immap_t *im = (immap_t *) CFG_IMMR;
+
+	/* reset Rx & Tx fifo slice */
+	psc->rfcmd = PSC_FIFO_RESET_SLICE;
+	psc->tfcmd = PSC_FIFO_RESET_SLICE;
+
+	/* disable Tx & Rx FIFO interrupts */
+	psc->rfintmask = 0;
+	psc->tfintmask = 0;
+
+	psc->tfsize = CONSOLE_FIFO_TX_SIZE | (CONSOLE_FIFO_TX_ADDR << 16);
+	psc->rfsize = CONSOLE_FIFO_RX_SIZE | (CONSOLE_FIFO_RX_ADDR << 16);
+
+	/* enable Tx & Rx FIFO slice */
+	psc->rfcmd = PSC_FIFO_ENABLE_SLICE;
+	psc->tfcmd = PSC_FIFO_ENABLE_SLICE;
+
+	im->fifoc.fifoc_cmd = FIFOC_DISABLE_CLOCK_GATE;
+	__asm__ volatile ("sync");
+}
+
+int serial_init(void)
+{
+	volatile immap_t *im = (immap_t *) CFG_IMMR;
+	volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+	unsigned long baseclk;
+	int div;
+
+	fifo_init (psc);
+
+	/* set MR register to point to MR1 */
+	psc->command = PSC_SEL_MODE_REG_1;
+
+	/* disable Tx/Rx */
+	psc->command = PSC_TX_DISABLE | PSC_RX_DISABLE;
+
+	/* choose the prescaler	by 16 for the Tx/Rx clock generation */
+	psc->psc_clock_select =  0xdd00;
+
+	/* switch to UART mode */
+	psc->sicr = 0;
+
+	/* mode register points to mr1 */
+	/* configure parity, bit length and so on in mode register 1*/
+	psc->mode = PSC_MODE_8_BITS | PSC_MODE_PARNONE;
+	/* now, mode register points to mr2 */
+	psc->mode = PSC_MODE_1_STOPBIT;
+
+	/* calculate dividor for setting PSC CTUR and CTLR registers */
+	baseclk = (gd->ipb_clk + 8) / 16;
+	div = (baseclk + (gd->baudrate / 2)) / gd->baudrate;
+
+	psc->ctur = (div >> 8) & 0xff;
+	/* set baudrate */
+	psc->ctlr = div & 0xff;
+
+	/* disable all interrupts */
+	psc->psc_imr = 0;
+
+	/* reset and enable Rx/Tx */
+	psc->command = PSC_RST_RX;
+	psc->command = PSC_RST_TX;
+	psc->command = PSC_RX_ENABLE | PSC_TX_ENABLE;
+
+	return 0;
+}
+
+void serial_putc (const char c)
+{
+	volatile immap_t *im = (immap_t *)CFG_IMMR;
+	volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+
+	if (c == '\n')
+		serial_putc ('\r');
+
+	/* Wait for last character to go. */
+	while (!(psc->psc_status & PSC_SR_TXEMP))
+		;
+
+	psc->tfdata_8 = c;
+}
+
+void serial_putc_raw (const char c)
+{
+	volatile immap_t *im = (immap_t *) CFG_IMMR;
+	volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+
+	/* Wait for last character to go. */
+	while (!(psc->psc_status & PSC_SR_TXEMP))
+		;
+
+	psc->tfdata_8 = c;
+}
+
+
+void serial_puts (const char *s)
+{
+	while (*s) {
+		serial_putc (*s++);
+	}
+}
+
+int serial_getc (void)
+{
+	volatile immap_t *im = (immap_t *) CFG_IMMR;
+	volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+
+	/* Wait for a character to arrive. */
+	while (psc->rfstat & PSC_FIFO_EMPTY)
+		;
+
+	return psc->rfdata_8;
+}
+
+int serial_tstc (void)
+{
+	volatile immap_t *im = (immap_t *) CFG_IMMR;
+	volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+
+	return !(psc->rfstat & PSC_FIFO_EMPTY);
+}
+
+void serial_setbrg (void)
+{
+	volatile immap_t *im = (immap_t *) CFG_IMMR;
+	volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+	unsigned long baseclk, div;
+
+	baseclk = (gd->csb_clk + 8) / 16;
+	div = (baseclk + (gd->baudrate / 2)) / gd->baudrate;
+
+	psc->ctur = (div >> 8) & 0xFF;
+	psc->ctlr =  div & 0xff; /* set baudrate */
+}
+
+void serial_setrts(int s)
+{
+	volatile immap_t *im = (immap_t *) CFG_IMMR;
+	volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+
+	if (s) {
+		/* Assert RTS (become LOW) */
+		psc->op1 = 0x1;
+	}
+	else {
+		/* Negate RTS (become HIGH) */
+		psc->op0 = 0x1;
+	}
+}
+
+int serial_getcts(void)
+{
+	volatile immap_t *im = (immap_t *) CFG_IMMR;
+	volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+
+	return (psc->ip & 0x1) ? 0 : 1;
+}
+#endif /* CONFIG_PSC_CONSOLE */
diff --git a/cpu/mpc512x/speed.c b/cpu/mpc512x/speed.c
new file mode 100644
index 0000000..9a31155
--- /dev/null
+++ b/cpu/mpc512x/speed.c
@@ -0,0 +1,135 @@
+/*
+ * (C) Copyright 2000-2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2004-2006 Freescale Semiconductor, Inc.
+ *
+ * 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
+ *
+ * Based on the MPC83xx code.
+ */
+
+#include <common.h>
+#include <mpc512x.h>
+#include <command.h>
+#include <asm/processor.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int spmf_mult[] = {
+	68, 1, 12, 16,
+	20, 24, 28, 32,
+	36, 40, 44, 48,
+	52, 56, 60, 64
+};
+
+static int cpmf_mult[][2] = {
+	{0, 1}, {0, 1}, /* 0 and 1 are not valid */
+	{1, 1}, {3, 2},
+	{2, 1}, {5, 2},
+	{3, 1}, {7, 2},
+	{0, 1}, {0, 1}, /* and all above 7 are not valid too */
+	{0, 1}, {0, 1},
+	{0, 1}, {0, 1},
+	{0, 1}, {0, 1}
+};
+
+static int sys_dividors[][2] = {
+	{2, 1}, {5, 2}, {3, 1}, {7, 2}, {4, 1},
+	{9, 2}, {5, 1}, {7, 1}, {6, 1}, {8, 1},
+	{9, 1}, {11, 1}, {10, 1}, {12, 1}, {13, 1},
+	{15, 1}, {14, 1}, {16, 1}, {17, 1}, {19, 1},
+	{18, 1}, {20, 1}, {21, 1}, {23, 1}, {22, 1},
+	{24, 1}, {25, 1}, {27, 1}, {26, 1}, {28, 1},
+	{29, 1}, {31, 1}, {30, 1}, {32, 1}, {33, 1}
+};
+
+int get_clocks (void)
+{
+	volatile immap_t *im = (immap_t *) CFG_IMMR;
+	u8 spmf;
+	u8 cpmf;
+	u8 sys_div;
+	u8 ips_div;
+	u32 ref_clk = CFG_MPC512X_CLKIN;
+	u32 spll;
+	u32 sys_clk;
+	u32 core_clk;
+	u32 csb_clk;
+	u32 ips_clk;
+
+	if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
+		return -1;
+
+	spmf = (im->clk.spmr & SPMR_SPMF) >> SPMR_SPMF_SHIFT;
+	spll = ref_clk * spmf_mult[spmf];
+	
+	sys_div = (im->clk.scfr[1] & SCFR2_SYS_DIV) >> SCFR2_SYS_DIV_SHIFT;
+	sys_clk = (spll * sys_dividors[sys_div][1]) / sys_dividors[sys_div][0];
+
+	csb_clk = sys_clk / 2;
+
+        cpmf = (im->clk.spmr & SPMR_CPMF) >> SPMR_CPMF_SHIFT;
+        core_clk = (csb_clk * cpmf_mult[cpmf][0]) / cpmf_mult[cpmf][1];
+
+	ips_div = (im->clk.scfr[0] & SCFR1_IPS_DIV_MASK) >> SCFR1_IPS_DIV_SHIFT;
+	if (ips_div != 0) {
+		ips_clk = csb_clk / ips_div;
+	} else {
+		/* in case we cannot get a sane IPS divisor, fail gracefully */
+		ips_clk = 0;
+	}
+
+	gd->ipb_clk = ips_clk;
+	gd->csb_clk = csb_clk;
+	gd->cpu_clk = core_clk;
+	gd->bus_clk = csb_clk;
+	return 0;
+
+}
+
+/********************************************
+ * get_bus_freq
+ * return system bus freq in Hz
+ *********************************************/
+ulong get_bus_freq (ulong dummy)
+{
+	return gd->csb_clk;
+}
+
+int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	printf ("Clock configuration:\n");
+	printf ("  CPU:                 %4d MHz\n", gd->cpu_clk / 1000000);
+	printf ("  Coherent System Bus: %4d MHz\n", gd->csb_clk / 1000000);
+	printf ("  IPS Bus:             %4d MHz\n", gd->ipb_clk / 1000000);
+	printf ("  DDR:                 %4d MHz\n", 2 * gd->csb_clk / 1000000);
+	return 0;
+}
+
+U_BOOT_CMD(clocks, 1, 0, do_clocks,
+	"clocks  - print clock configuration\n",
+	"    clocks\n"
+);
+
+int prt_mpc512x_clks (void)
+{
+	do_clocks (NULL, 0, 0, NULL);
+	return (0);
+}
diff --git a/cpu/mpc512x/start.S b/cpu/mpc512x/start.S
new file mode 100644
index 0000000..8b749ac
--- /dev/null
+++ b/cpu/mpc512x/start.S
@@ -0,0 +1,780 @@
+/*
+ * Copyright (C) 1998  Dan Malek <dmalek@jlc.net>
+ * Copyright (C) 1999  Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se>
+ * Copyright (C) 2000, 2001, 2002, 2007 Wolfgang Denk <wd@denx.de>
+ * Copyright Freescale Semiconductor, Inc. 2004, 2006. 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
+ *
+ * Based on the MPC83xx code.
+ */
+
+/*
+ *  U-Boot - Startup Code for MPC512x based Embedded Boards
+ */
+
+#include <config.h>
+#include <mpc512x.h>
+#include <version.h>
+
+#define CONFIG_521X	1		/* needed for Linux kernel header files*/
+
+#include <ppc_asm.tmpl>
+#include <ppc_defs.h>
+
+#include <asm/cache.h>
+#include <asm/mmu.h>
+
+#ifndef  CONFIG_IDENT_STRING
+#define  CONFIG_IDENT_STRING "MPC512X"
+#endif
+
+/*
+ * Floating Point enable, Machine Check and Recoverable Interr.
+ */
+#undef	MSR_KERNEL
+#ifdef DEBUG
+#define MSR_KERNEL (MSR_FP|MSR_RI)
+#else
+#define MSR_KERNEL (MSR_FP|MSR_ME|MSR_RI)
+#endif
+
+/* Macros for manipulating CSx_START/STOP */
+#define START_REG(start)	((start) >> 16)
+#define STOP_REG(start, size)	(((start) + (size) - 1) >> 16)
+
+/*
+ * Set up GOT: Global Offset Table
+ *
+ * Use r14 to access the GOT
+ */
+	START_GOT
+	GOT_ENTRY(_GOT2_TABLE_)
+	GOT_ENTRY(_FIXUP_TABLE_)
+
+	GOT_ENTRY(_start)
+	GOT_ENTRY(_start_of_vectors)
+	GOT_ENTRY(_end_of_vectors)
+	GOT_ENTRY(transfer_to_handler)
+
+	GOT_ENTRY(__init_end)
+	GOT_ENTRY(_end)
+	GOT_ENTRY(__bss_start)
+	END_GOT
+
+/*
+ * Magic number and version string
+ */
+	.long	0x27051956		/* U-Boot Magic Number */
+	.globl	version_string
+version_string:
+	.ascii U_BOOT_VERSION
+	.ascii " (", __DATE__, " - ", __TIME__, ")"
+	.ascii " ", CONFIG_IDENT_STRING, "\0"
+
+/*
+ * Vector Table
+ */
+	.text
+	. = EXC_OFF_SYS_RESET
+
+	.globl	_start
+	/* Start from here after reset/power on */
+_start:
+	li	r21, BOOTFLAG_COLD  /* Normal Power-On: Boot from FLASH */
+	b	boot_cold
+
+	.globl	_start_of_vectors
+_start_of_vectors:
+
+/* Machine check */
+	STD_EXCEPTION(0x200, MachineCheck, MachineCheckException)
+
+/* Data Storage exception. */
+	STD_EXCEPTION(0x300, DataStorage, UnknownException)
+
+/* Instruction Storage exception. */
+	STD_EXCEPTION(0x400, InstStorage, UnknownException)
+
+/* External Interrupt exception. */
+	STD_EXCEPTION(0x500, ExtInterrupt, UnknownException)
+
+/* Alignment exception. */
+	. = 0x600
+Alignment:
+	EXCEPTION_PROLOG(SRR0, SRR1)
+	mfspr	r4,DAR
+	stw	r4,_DAR(r21)
+	mfspr	r5,DSISR
+	stw	r5,_DSISR(r21)
+	addi	r3,r1,STACK_FRAME_OVERHEAD
+	li	r20,MSR_KERNEL
+	rlwimi	r20,r23,0,16,16		/* copy EE bit from saved MSR */
+	rlwimi	r20,r23,0,25,25		/* copy IP bit from saved MSR */
+	lwz	r6,GOT(transfer_to_handler)
+	mtlr	r6
+	blrl
+.L_Alignment:
+	.long	AlignmentException - _start + EXC_OFF_SYS_RESET
+	.long	int_return - _start + EXC_OFF_SYS_RESET
+
+/* Program check exception */
+	. = 0x700
+ProgramCheck:
+	EXCEPTION_PROLOG(SRR0, SRR1)
+	addi	r3,r1,STACK_FRAME_OVERHEAD
+	li	r20,MSR_KERNEL
+	rlwimi	r20,r23,0,16,16		/* copy EE bit from saved MSR */
+	rlwimi	r20,r23,0,25,25		/* copy IP bit from saved MSR */
+	lwz	r6,GOT(transfer_to_handler)
+	mtlr	r6
+	blrl
+.L_ProgramCheck:
+	.long	ProgramCheckException - _start + EXC_OFF_SYS_RESET
+	.long	int_return - _start + EXC_OFF_SYS_RESET
+
+/* Floating Point Unit unavailable exception */
+	STD_EXCEPTION(0x800, FPUnavailable, UnknownException)
+
+/* Decrementer */
+	STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
+
+/* Critical interrupt */
+	STD_EXCEPTION(0xa00, Critical, UnknownException)
+
+/* System Call */
+	STD_EXCEPTION(0xc00, SystemCall, UnknownException)
+
+/* Trace interrupt */
+	STD_EXCEPTION(0xd00, Trace, UnknownException)
+
+/* Performance Monitor interrupt */
+	STD_EXCEPTION(0xf00, PerfMon, UnknownException)
+
+/* Intruction Translation Miss */
+	STD_EXCEPTION(0x1000, InstructionTLBMiss, UnknownException)
+
+/* Data Load Translation Miss */
+	STD_EXCEPTION(0x1100, DataLoadTLBMiss, UnknownException)
+
+/* Data Store Translation Miss */
+	STD_EXCEPTION(0x1200, DataStoreTLBMiss, UnknownException)
+
+/* Instruction Address Breakpoint */
+	STD_EXCEPTION(0x1300, InstructionAddrBreakpoint, DebugException)
+
+/* System Management interrupt */
+	STD_EXCEPTION(0x1400, SystemMgmtInterrupt, UnknownException)
+
+	.globl	_end_of_vectors
+_end_of_vectors:
+
+	. = 0x3000
+boot_cold:
+	/* Save msr contents */
+	mfmsr	r5
+
+	/* Set IMMR area to our preferred location */
+	lis	r4, CONFIG_DEFAULT_IMMR@h
+	lis	r3, CFG_IMMR@h
+	ori	r3, r3, CFG_IMMR@l
+	stw	r3, IMMRBAR(r4)
+	mtspr	MBAR, r3		/* IMMRBAR is mirrored into the MBAR SPR (311) */
+
+	/* Initialise the machine */
+	bl	cpu_early_init
+
+	/*
+	 * Set up Local Access Windows:
+	 *
+	 * 1) Boot/CS0 (boot FLASH)
+	 * 2) On-chip SRAM (initial stack purposes)
+	 */
+
+	/* Boot CS/CS0 window range */
+        lis     r3, CFG_IMMR@h
+        ori     r3, r3, CFG_IMMR@l
+
+	lis	r4, START_REG(CFG_FLASH_BASE)
+	ori	r4, r4, STOP_REG(CFG_FLASH_BASE, CFG_FLASH_SIZE)
+	stw	r4, LPCS0AW(r3)
+
+	/*
+	 * The SRAM window has a fixed size (256K), so only the start address
+	 * is necessary
+	 */
+	lis 	r4, START_REG(CFG_SRAM_BASE) & 0xff00
+	stw	r4, SRAMBAR(r3)
+
+	/* 
+	 * According to MPC5121e RM, configuring local access windows should
+         * be followed by a dummy read of the config register that was
+	 * modified last and an isync
+         */
+	lwz	r4, SRAMBAR(r3)
+	isync
+
+	/*
+	 * Set configuration of the Boot/CS0, the SRAM window does not have a
+	 * config register so no params can be set for it
+	 */
+	lis     r3, (CFG_IMMR + LPC_OFFSET)@h
+        ori     r3, r3, (CFG_IMMR + LPC_OFFSET)@l
+
+        lis     r4, CFG_CS0_CFG@h
+        ori     r4, r4, CFG_CS0_CFG@l
+        stw     r4, CS0_CONFIG(r3)
+
+	/* Master enable all CS's */
+	lis	r4, CS_CTRL_ME@h
+	ori	r4, r4, CS_CTRL_ME@l
+	stw	r4, CS_CTRL(r3)
+
+	lis	r4, (CFG_MONITOR_BASE)@h
+	ori	r4, r4, (CFG_MONITOR_BASE)@l
+	addi	r5, r4, in_flash - _start + EXC_OFF_SYS_RESET
+	mtlr	r5
+	blr
+
+in_flash:
+	lis	r1, (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET)@h
+	ori	r1, r1, (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET)@l
+
+	li	r0, 0		/* Make room for stack frame header and	*/
+	stwu	r0, -4(r1)	/* clear final stack frame so that	*/
+	stwu	r0, -4(r1)	/* stack backtraces terminate cleanly	*/
+
+	/* let the C-code set up the rest			*/
+	/*							*/
+	/* Be careful to keep code relocatable & stack humble	*/
+	/*------------------------------------------------------*/
+
+	GET_GOT			/* initialize GOT access	*/
+
+	/* r3: IMMR */
+	lis	r3, CFG_IMMR@h
+	/* run low-level CPU init code (in Flash) */
+	bl	cpu_init_f
+
+	/* r3: BOOTFLAG */
+	mr	r3, r21
+	/* run 1st part of board init code (in Flash) */
+	bl	board_init_f
+
+	/* NOTREACHED - board_init_f() does not return */
+
+/*
+ * This code finishes saving the registers to the exception frame
+ * and jumps to the appropriate handler for the exception.
+ * Register r21 is pointer into trap frame, r1 has new stack pointer.
+ */
+	.globl	transfer_to_handler
+transfer_to_handler:
+	stw	r22,_NIP(r21)
+	lis	r22,MSR_POW@h
+	andc	r23,r23,r22
+	stw	r23,_MSR(r21)
+	SAVE_GPR(7, r21)
+	SAVE_4GPRS(8, r21)
+	SAVE_8GPRS(12, r21)
+	SAVE_8GPRS(24, r21)
+	mflr	r23
+	andi.	r24,r23,0x3f00		/* get vector offset */
+	stw	r24,TRAP(r21)
+	li	r22,0
+	stw	r22,RESULT(r21)
+	lwz	r24,0(r23)		/* virtual address of handler */
+	lwz	r23,4(r23)		/* where to go when done */
+	mtspr	SRR0,r24
+	mtspr	SRR1,r20
+	mtlr	r23
+	SYNC
+	rfi				/* jump to handler, enable MMU */
+
+int_return:
+	mfmsr	r28		/* Disable interrupts */
+	li	r4,0
+	ori	r4,r4,MSR_EE
+	andc	r28,r28,r4
+	SYNC			/* Some chip revs need this... */
+	mtmsr	r28
+	SYNC
+	lwz	r2,_CTR(r1)
+	lwz	r0,_LINK(r1)
+	mtctr	r2
+	mtlr	r0
+	lwz	r2,_XER(r1)
+	lwz	r0,_CCR(r1)
+	mtspr	XER,r2
+	mtcrf	0xFF,r0
+	REST_10GPRS(3, r1)
+	REST_10GPRS(13, r1)
+	REST_8GPRS(23, r1)
+	REST_GPR(31, r1)
+	lwz	r2,_NIP(r1)	/* Restore environment */
+	lwz	r0,_MSR(r1)
+	mtspr	SRR0,r2
+	mtspr	SRR1,r0
+	lwz	r0,GPR0(r1)
+	lwz	r2,GPR2(r1)
+	lwz	r1,GPR1(r1)
+	SYNC
+	rfi
+
+/*
+ * This code initialises the machine, it expects original MSR contents to be in r5.
+ */
+cpu_early_init:
+	/* Initialize machine status; enable machine check interrupt */
+	/*-----------------------------------------------------------*/
+
+	li	r3, MSR_KERNEL			/* Set ME and RI flags */
+	rlwimi	r3, r5, 0, 25, 25		/* preserve IP bit */
+#ifdef DEBUG
+	rlwimi	r3, r5, 0, 21, 22		/* debugger might set SE, BE bits */
+#endif
+	mtmsr	r3
+	SYNC
+	mtspr	SRR1, r3			/* Mirror current MSR state in SRR1 */
+
+	lis	r3, CFG_IMMR@h
+
+#if defined(CONFIG_WATCHDOG)
+	/* Initialise the watchdog and reset it */
+	/*--------------------------------------*/
+	lis r4, CFG_WATCHDOG_VALUE
+	ori r4, r4, (SWCRR_SWEN | SWCRR_SWRI | SWCRR_SWPR)
+	stw r4, SWCRR(r3)
+
+	/* reset */
+	li	r4, 0x556C
+	sth	r4, SWSRR@l(r3)
+	li	r4, 0x0
+	ori	r4, r4, 0xAA39
+	sth	r4, SWSRR@l(r3)
+#else
+	/* Disable the watchdog */
+	/*----------------------*/
+	lwz r4, SWCRR(r3)
+	/*
+	 * Check to see if it's enabled for disabling: once disabled by s/w
+	 * it's not possible to re-enable it
+	 */
+	andi. r4, r4, 0x4
+	beq 1f
+	xor r4, r4, r4
+	stw r4, SWCRR(r3)
+1:
+#endif /* CONFIG_WATCHDOG */
+
+	/* Initialize the Hardware Implementation-dependent Registers */
+	/* HID0 also contains cache control			*/
+	/*------------------------------------------------------*/
+	lis	r3, CFG_HID0_INIT@h
+	ori	r3, r3, CFG_HID0_INIT@l
+	SYNC
+	mtspr	HID0, r3
+
+	lis	r3, CFG_HID0_FINAL@h
+	ori	r3, r3, CFG_HID0_FINAL@l
+	SYNC
+	mtspr	HID0, r3
+
+	lis	r3, CFG_HID2@h
+	ori	r3, r3, CFG_HID2@l
+	SYNC
+	mtspr	HID2, r3
+	sync
+	blr
+
+
+/* Cache functions.
+ *
+ * Note: requires that all cache bits in
+ * HID0 are in the low half word.
+ */
+	.globl	icache_enable
+icache_enable:
+	mfspr	r3, HID0
+	ori	r3, r3, HID0_ICE
+	lis	r4, 0
+	ori	r4, r4, HID0_ILOCK
+	andc	r3, r3, r4
+	ori	r4, r3, HID0_ICFI
+	isync
+	mtspr	HID0, r4    /* sets enable and invalidate, clears lock */
+	isync
+	mtspr	HID0, r3	/* clears invalidate */
+	blr
+
+	.globl	icache_disable
+icache_disable:
+	mfspr	r3, HID0
+	lis	r4, 0
+	ori	r4, r4, HID0_ICE|HID0_ILOCK
+	andc	r3, r3, r4
+	ori	r4, r3, HID0_ICFI
+	isync
+	mtspr	HID0, r4     /* sets invalidate, clears enable and lock*/
+	isync
+	mtspr	HID0, r3	/* clears invalidate */
+	blr
+
+	.globl	icache_status
+icache_status:
+	mfspr	r3, HID0
+	rlwinm	r3, r3, (31 - HID0_ICE_SHIFT + 1), 31, 31
+	blr
+
+	.globl	dcache_enable
+dcache_enable:
+	mfspr	r3, HID0
+	li	r5, HID0_DCFI|HID0_DLOCK
+	andc	r3, r3, r5
+	mtspr	HID0, r3		/* no invalidate, unlock */
+	ori	r3, r3, HID0_DCE
+	ori	r5, r3, HID0_DCFI
+	mtspr	HID0, r5		/* enable + invalidate */
+	mtspr	HID0, r3		/* enable */
+	sync
+	blr
+
+	.globl	dcache_disable
+dcache_disable:
+	mfspr	r3, HID0
+	lis	r4, 0
+	ori	r4, r4, HID0_DCE|HID0_DLOCK
+	andc	r3, r3, r4
+	ori	r4, r3, HID0_DCI
+	sync
+	mtspr	HID0, r4	/* sets invalidate, clears enable and lock */
+	sync
+	mtspr	HID0, r3	/* clears invalidate */
+	blr
+
+	.globl	dcache_status
+dcache_status:
+	mfspr	r3, HID0
+	rlwinm	r3, r3, (31 - HID0_DCE_SHIFT + 1), 31, 31
+	blr
+
+	.globl get_pvr
+get_pvr:
+	mfspr	r3, PVR
+	blr
+
+/*------------------------------------------------------------------------------- */
+/* Function:	 ppcDcbf */
+/* Description:	 Data Cache block flush */
+/* Input:	 r3 = effective address */
+/* Output:	 none. */
+/*------------------------------------------------------------------------------- */
+	.globl	ppcDcbf
+ppcDcbf:
+	dcbf	r0,r3
+	blr
+
+/*------------------------------------------------------------------------------- */
+/* Function:	 ppcDcbi */
+/* Description:	 Data Cache block Invalidate */
+/* Input:	 r3 = effective address */
+/* Output:	 none. */
+/*------------------------------------------------------------------------------- */
+	.globl	ppcDcbi
+ppcDcbi:
+	dcbi	r0,r3
+	blr
+
+/*--------------------------------------------------------------------------
+ * Function:	 ppcDcbz
+ * Description:	 Data Cache block zero.
+ * Input:	 r3 = effective address
+ * Output:	 none.
+ *-------------------------------------------------------------------------- */
+
+	.globl	ppcDcbz
+ppcDcbz:
+	dcbz	r0,r3
+	blr
+
+	.globl	ppcDWstore
+ppcDWstore:
+	lfd	1, 0(r4)
+	stfd	1, 0(r3)
+	blr
+
+	.globl	ppcDWload
+ppcDWload:
+	lfd	1, 0(r3)
+	stfd	1, 0(r4)
+	blr
+
+/*-------------------------------------------------------------------*/
+
+/*
+ * void relocate_code (addr_sp, gd, addr_moni)
+ *
+ * This "function" does not return, instead it continues in RAM
+ * after relocating the monitor code.
+ *
+ * r3 = dest
+ * r4 = src
+ * r5 = length in bytes
+ * r6 = cachelinesize
+ */
+	.globl	relocate_code
+relocate_code:
+	mr	r1,  r3		/* Set new stack pointer	*/
+	mr	r9,  r4		/* Save copy of Global Data pointer */
+	mr	r10, r5		/* Save copy of Destination Address */
+
+	mr	r3,  r5				/* Destination Address */
+	lis	r4, CFG_MONITOR_BASE@h		/* Source      Address */
+	ori	r4, r4, CFG_MONITOR_BASE@l
+	lwz	r5, GOT(__init_end)
+	sub	r5, r5, r4
+	li	r6, CFG_CACHELINE_SIZE		/* Cache Line Size */
+
+	/*
+	 * Fix GOT pointer:
+	 *
+	 * New GOT-PTR = (old GOT-PTR - CFG_MONITOR_BASE)
+	 *		+ Destination Address
+	 *
+	 * Offset:
+	 */
+	sub	r15, r10, r4
+
+	/* First our own GOT */
+	add	r14, r14, r15
+	/* then the one used by the C code */
+	add	r30, r30, r15
+
+	/*
+	 * Now relocate code
+	 */
+	cmplw	cr1,r3,r4
+	addi	r0,r5,3
+	srwi.	r0,r0,2
+	beq	cr1,4f		/* In place copy is not necessary */
+	beq	7f		/* Protect against 0 count	  */
+	mtctr	r0
+	bge	cr1,2f
+	la	r8,-4(r4)
+	la	r7,-4(r3)
+
+	/* copy */
+1:	lwzu	r0,4(r8)
+	stwu	r0,4(r7)
+	bdnz	1b
+
+	addi	r0,r5,3
+	srwi.	r0,r0,2
+	mtctr	r0
+	la	r8,-4(r4)
+	la	r7,-4(r3)
+
+	/* and compare */
+20:	lwzu	r20,4(r8)
+	lwzu	r21,4(r7)
+	xor. r22, r20, r21
+	bne  30f
+	bdnz	20b
+	b 4f
+
+	/* compare failed */
+30:	li r3, 0
+	blr
+
+2:	slwi	r0,r0,2 /* re copy in reverse order ... y do we needed it? */
+	add	r8,r4,r0
+	add	r7,r3,r0
+3:	lwzu	r0,-4(r8)
+	stwu	r0,-4(r7)
+	bdnz	3b
+
+/*
+ * Now flush the cache: note that we must start from a cache aligned
+ * address. Otherwise we might miss one cache line.
+ */
+4:	cmpwi	r6,0
+	add	r5,r3,r5
+	beq	7f		/* Always flush prefetch queue in any case */
+	subi	r0,r6,1
+	andc	r3,r3,r0
+	mr	r4,r3
+5:	dcbst	0,r4
+	add	r4,r4,r6
+	cmplw	r4,r5
+	blt	5b
+	sync			/* Wait for all dcbst to complete on bus */
+	mr	r4,r3
+6:	icbi	0,r4
+	add	r4,r4,r6
+	cmplw	r4,r5
+	blt	6b
+7:	sync			/* Wait for all icbi to complete on bus	*/
+	isync
+
+/*
+ * We are done. Do not return, instead branch to second part of board
+ * initialization, now running from RAM.
+ */
+	addi	r0, r10, in_ram - _start + EXC_OFF_SYS_RESET
+	mtlr	r0
+	blr
+
+in_ram:
+	/*
+	 * Relocation Function, r14 point to got2+0x8000
+	 *
+	 * Adjust got2 pointers, no need to check for 0, this code
+	 * already puts a few entries in the table.
+	 */
+	li	r0,__got2_entries@sectoff@l
+	la	r3,GOT(_GOT2_TABLE_)
+	lwz	r11,GOT(_GOT2_TABLE_)
+	mtctr	r0
+	sub	r11,r3,r11
+	addi	r3,r3,-4
+1:	lwzu	r0,4(r3)
+	add	r0,r0,r11
+	stw	r0,0(r3)
+	bdnz	1b
+
+	/*
+	 * Now adjust the fixups and the pointers to the fixups
+	 * in case we need to move ourselves again.
+	 */
+2:	li	r0,__fixup_entries@sectoff@l
+	lwz	r3,GOT(_FIXUP_TABLE_)
+	cmpwi	r0,0
+	mtctr	r0
+	addi	r3,r3,-4
+	beq	4f
+3:	lwzu	r4,4(r3)
+	lwzux	r0,r4,r11
+	add	r0,r0,r11
+	stw	r10,0(r3)
+	stw	r0,0(r4)
+	bdnz	3b
+4:
+clear_bss:
+	/*
+	 * Now clear BSS segment
+	 */
+	lwz	r3,GOT(__bss_start)
+	lwz	r4,GOT(_end)
+
+	cmplw	0, r3, r4
+	beq	6f
+
+	li	r0, 0
+5:
+	stw	r0, 0(r3)
+	addi	r3, r3, 4
+	cmplw	0, r3, r4
+	bne	5b
+6:
+	mr	r3, r9		/* Global Data pointer		*/
+	mr	r4, r10		/* Destination Address		*/
+	bl	board_init_r
+
+	/*
+	 * Copy exception vector code to low memory
+	 *
+	 * r3: dest_addr
+	 * r7: source address, r8: end address, r9: target address
+	 */
+	.globl	trap_init
+trap_init:
+	lwz	r7, GOT(_start)
+	lwz	r8, GOT(_end_of_vectors)
+
+	li	r9, 0x100	/* reset vector at 0x100 */
+
+	cmplw	0, r7, r8
+	bgelr			/* return if r7>=r8 - just in case */
+
+	mflr	r4		/* save link register */
+1:
+	lwz	r0, 0(r7)
+	stw	r0, 0(r9)
+	addi	r7, r7, 4
+	addi	r9, r9, 4
+	cmplw	0, r7, r8
+	bne	1b
+
+	/*
+	 * relocate `hdlr' and `int_return' entries
+	 */
+	li	r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET
+	li	r8, Alignment - _start + EXC_OFF_SYS_RESET
+2:
+	bl	trap_reloc
+	addi	r7, r7, 0x100		/* next exception vector */
+	cmplw	0, r7, r8
+	blt	2b
+
+	li	r7, .L_Alignment - _start + EXC_OFF_SYS_RESET
+	bl	trap_reloc
+
+	li	r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET
+	bl	trap_reloc
+
+	li	r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET
+	li	r8, SystemCall - _start + EXC_OFF_SYS_RESET
+3:
+	bl	trap_reloc
+	addi	r7, r7, 0x100		/* next exception vector */
+	cmplw	0, r7, r8
+	blt	3b
+
+	li	r7, .L_Trace - _start + EXC_OFF_SYS_RESET
+	li	r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET
+4:
+	bl	trap_reloc
+	addi	r7, r7, 0x100		/* next exception vector */
+	cmplw	0, r7, r8
+	blt	4b
+
+	mfmsr	r3			/* now that the vectors have */
+	lis	r7, MSR_IP@h		/* relocated into low memory */
+	ori	r7, r7, MSR_IP@l	/* MSR[IP] can be turned off */
+	andc	r3, r3, r7		/* (if it was on) */
+	SYNC				/* Some chip revs need this... */
+	mtmsr	r3
+	SYNC
+
+	mtlr	r4			/* restore link register    */
+	blr
+
+	/*
+	 * Function: relocate entries for one exception vector
+	 */
+trap_reloc:
+	lwz	r0, 0(r7)		/* hdlr ...		*/
+	add	r0, r0, r3		/*  ... += dest_addr	*/
+	stw	r0, 0(r7)
+
+	lwz	r0, 4(r7)		/* int_return ...	*/
+	add	r0, r0, r3		/*  ... += dest_addr	*/
+	stw	r0, 4(r7)
+
+	blr
diff --git a/cpu/mpc512x/traps.c b/cpu/mpc512x/traps.c
new file mode 100644
index 0000000..40281a2
--- /dev/null
+++ b/cpu/mpc512x/traps.c
@@ -0,0 +1,205 @@
+/*
+ * (C) Copyright 2000 - 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 1995-1996  Gary Thomas (gdt@linuxppc.org)
+ *
+ * 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
+ *
+ * Derived from the MPC83xx code.
+ */
+
+/*
+ * This file handles the architecture-dependent parts of hardware
+ * exceptions
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+extern unsigned long search_exception_table(unsigned long);
+
+#define END_OF_MEM	(gd->bd->bi_memstart + gd->bd->bi_memsize)
+
+/*
+ * Trap & Exception support
+ */
+
+void
+print_backtrace (unsigned long *sp)
+{
+	int cnt = 0;
+	unsigned long i;
+
+	puts ("Call backtrace: ");
+	while (sp) {
+		if ((uint)sp > END_OF_MEM)
+			break;
+
+		i = sp[1];
+		if (cnt++ % 7 == 0)
+			putc ('\n');
+		printf ("%08lX ", i);
+		if (cnt > 32) break;
+		sp = (unsigned long *) *sp;
+	}
+	putc ('\n');
+}
+
+void show_regs (struct pt_regs * regs)
+{
+	int i;
+
+	printf ("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n",
+	       regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar);
+	printf ("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n",
+	       regs->msr, regs->msr & MSR_EE ? 1 : 0, regs->msr & MSR_PR ? 1 : 0,
+	       regs->msr & MSR_FP ? 1 : 0,regs->msr & MSR_ME ? 1 : 0,
+	       regs->msr & MSR_IR ? 1 : 0,
+	       regs->msr & MSR_DR ? 1 : 0);
+
+	putc ('\n');
+	for (i = 0;  i < 32;  i++) {
+		if ((i % 8) == 0) {
+			printf ("GPR%02d: ", i);
+		}
+
+		printf ("%08lX ", regs->gpr[i]);
+		if ((i % 8) == 7) {
+			putc ('\n');
+		}
+	}
+}
+
+
+void
+_exception (int signr, struct pt_regs *regs)
+{
+	show_regs (regs);
+	print_backtrace ((unsigned long *)regs->gpr[1]);
+	panic ("Exception at pc %lx signal %d", regs->nip,signr);
+}
+
+
+void
+MachineCheckException (struct pt_regs *regs)
+{
+	unsigned long fixup;
+
+	if ((fixup = search_exception_table (regs->nip)) != 0) {
+		regs->nip = fixup;
+		return;
+	}
+
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+
+	puts ("Machine check.\nCaused by (from msr): ");
+	printf ("regs %p ",regs);
+	switch (regs->msr & 0x00FF0000) {
+	case (0x80000000 >> 10):
+		puts ("Instruction cache parity signal\n");
+		break;
+	case (0x80000000 >> 11):
+		puts ("Data cache parity signal\n");
+		break;
+	case (0x80000000 >> 12):
+		puts ("Machine check signal\n");
+		break;
+	case (0x80000000 >> 13):
+		puts ("Transfer error ack signal\n");
+		break;
+	case (0x80000000 >> 14):
+		puts ("Data parity signal\n");
+		break;
+	case (0x80000000 >> 15):
+		puts ("Address parity signal\n");
+		break;
+	default:
+		puts ("Unknown values in msr\n");
+	}
+	show_regs (regs);
+	print_backtrace ((unsigned long *)regs->gpr[1]);
+
+	panic ("machine check");
+}
+
+void
+AlignmentException (struct pt_regs *regs)
+{
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+	show_regs (regs);
+	print_backtrace ((unsigned long *)regs->gpr[1]);
+	panic ("Alignment Exception");
+}
+
+void
+ProgramCheckException (struct pt_regs *regs)
+{
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+	show_regs (regs);
+	print_backtrace ((unsigned long *)regs->gpr[1]);
+	panic ("Program Check Exception");
+}
+
+void
+SoftEmuException (struct pt_regs *regs)
+{
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+	show_regs (regs);
+	print_backtrace ((unsigned long *)regs->gpr[1]);
+	panic ("Software Emulation Exception");
+}
+
+
+void
+UnknownException (struct pt_regs *regs)
+{
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+	printf ("Bad trap at PC: %lx, SR: %lx, vector=%lx\n",
+	       regs->nip, regs->msr, regs->trap);
+	_exception (0, regs);
+}
+
+#if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
+extern void do_bedbug_breakpoint (struct pt_regs *);
+#endif
+
+void
+DebugException (struct pt_regs *regs)
+{
+	printf ("Debugger trap at @ %lx\n", regs->nip );
+	show_regs (regs);
+#if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
+	do_bedbug_breakpoint (regs);
+#endif
+}