nios2: Move cpu/nios2/* to arch/nios2/cpu/*

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

9 files changed, 0 insertions, 1592 deletions

diff --git a/cpu/nios2/Makefile b/cpu/nios2/Makefile
deleted file mode 100644
index 3dfaa83..0000000
--- a/cpu/nios2/Makefile
+++ /dev/null
@@ -1,48 +0,0 @@
-#
-# (C) Copyright 2000-2006
-# 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	= $(obj)lib$(CPU).a
-
-START	= start.o
-SOBJS	= exceptions.o
-COBJS	= cpu.o interrupts.o sysid.o traps.o epcs.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/nios2/config.mk b/cpu/nios2/config.mk
deleted file mode 100644
index f228d72..0000000
--- a/cpu/nios2/config.mk
+++ /dev/null
@@ -1,24 +0,0 @@
-#
-# (C) Copyright 2000
-# 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
-#
-
-PLATFORM_RELFLAGS +=
diff --git a/cpu/nios2/cpu.c b/cpu/nios2/cpu.c
deleted file mode 100644
index 6379534..0000000
--- a/cpu/nios2/cpu.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
- * Scott McNutt <smcnutt@psyent.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 <nios2.h>
-#include <nios2-io.h>
-
-#if defined (CONFIG_SYS_NIOS_SYSID_BASE)
-extern void display_sysid (void);
-#endif /* CONFIG_SYS_NIOS_SYSID_BASE */
-
-int checkcpu (void)
-{
-	printf ("CPU   : Nios-II\n");
-#if !defined(CONFIG_SYS_NIOS_SYSID_BASE)
-	printf ("SYSID : <unknown>\n");
-#else
-	display_sysid ();
-#endif
-	return (0);
-}
-
-
-int do_reset (void)
-{
-	void (*rst)(void) = (void(*)(void))CONFIG_SYS_RESET_ADDR;
-	disable_interrupts ();
-	rst();
-	return(0);
-}
diff --git a/cpu/nios2/epcs.c b/cpu/nios2/epcs.c
deleted file mode 100644
index ab7d746..0000000
--- a/cpu/nios2/epcs.c
+++ /dev/null
@@ -1,733 +0,0 @@
-/*
- * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
- * Scott McNutt <smcnutt@psyent.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>
-
-#if defined(CONFIG_SYS_NIOS_EPCSBASE)
-#include <command.h>
-#include <asm/io.h>
-#include <nios2-io.h>
-#include <nios2-epcs.h>
-
-
-/*-----------------------------------------------------------------------*/
-#define SHORT_HELP\
-	"epcs    - read/write Cyclone EPCS configuration device.\n"
-
-#define LONG_HELP\
-	"\n"\
-	"epcs erase start [end]\n"\
-	"    - erase sector start or sectors start through end.\n"\
-	"epcs info\n"\
-	"    - display EPCS device information.\n"\
-	"epcs protect on | off\n"\
-	"    - turn device protection on or off.\n"\
-	"epcs read addr offset count\n"\
-	"    - read count bytes from offset to addr.\n"\
-	"epcs write addr offset count\n"\
-	"    - write count bytes to offset from addr.\n"\
-	"epcs verify addr offset count\n"\
-	"    - verify count bytes at offset from addr."
-
-
-/*-----------------------------------------------------------------------*/
-/* Operation codes for serial configuration devices
- */
-#define EPCS_WRITE_ENA		0x06	/* Write enable */
-#define EPCS_WRITE_DIS		0x04	/* Write disable */
-#define EPCS_READ_STAT		0x05	/* Read status */
-#define EPCS_READ_BYTES		0x03	/* Read bytes */
-#define EPCS_READ_ID		0xab	/* Read silicon id */
-#define EPCS_WRITE_STAT		0x01	/* Write status */
-#define EPCS_WRITE_BYTES	0x02	/* Write bytes */
-#define EPCS_ERASE_BULK		0xc7	/* Erase entire device */
-#define EPCS_ERASE_SECT		0xd8	/* Erase sector */
-
-/* Device status register bits
- */
-#define EPCS_STATUS_WIP		(1<<0)	/* Write in progress */
-#define EPCS_STATUS_WEL		(1<<1)	/* Write enable latch */
-
-/* Misc
- */
-#define EPCS_TIMEOUT		100	/* 100 msec timeout */
-
-static nios_spi_t *epcs = (nios_spi_t *)CONFIG_SYS_NIOS_EPCSBASE;
-
-/***********************************************************************
- * Device access
- ***********************************************************************/
-static int epcs_cs (int assert)
-{
-	ulong start;
-	unsigned tmp;
-
-
-	if (assert) {
-		tmp = readl (&epcs->control);
-		writel (tmp | NIOS_SPI_SSO, &epcs->control);
-	} else {
-		/* Let all bits shift out */
-		start = get_timer (0);
-		while ((readl (&epcs->status) & NIOS_SPI_TMT) == 0)
-			if (get_timer (start) > EPCS_TIMEOUT)
-				return (-1);
-		tmp = readl (&epcs->control);
-		writel (tmp & ~NIOS_SPI_SSO, &epcs->control);
-	}
-	return (0);
-}
-
-static int epcs_tx (unsigned char c)
-{
-	ulong start;
-
-	start = get_timer (0);
-	while ((readl (&epcs->status) & NIOS_SPI_TRDY) == 0)
-		if (get_timer (start) > EPCS_TIMEOUT)
-			return (-1);
-	writel (c, &epcs->txdata);
-	return (0);
-}
-
-static int epcs_rx (void)
-{
-	ulong start;
-
-	start = get_timer (0);
-	while ((readl (&epcs->status) & NIOS_SPI_RRDY) == 0)
-		if (get_timer (start) > EPCS_TIMEOUT)
-			return (-1);
-	return (readl (&epcs->rxdata));
-}
-
-static unsigned char bitrev[] = {
-	0x00, 0x08, 0x04, 0x0c, 0x02, 0x0a, 0x06, 0x0e,
-	0x01, 0x09, 0x05, 0x0d, 0x03, 0x0b, 0x07, 0x0f
-};
-
-static unsigned char epcs_bitrev (unsigned char c)
-{
-	unsigned char val;
-
-	val  = bitrev[c>>4];
-	val |= bitrev[c & 0x0f]<<4;
-	return (val);
-}
-
-static void epcs_rcv (unsigned char *dst, int len)
-{
-	while (len--) {
-		epcs_tx (0);
-		*dst++ = epcs_rx ();
-	}
-}
-
-static void epcs_rrcv (unsigned char *dst, int len)
-{
-	while (len--) {
-		epcs_tx (0);
-		*dst++ = epcs_bitrev (epcs_rx ());
-	}
-}
-
-static void epcs_snd (unsigned char *src, int len)
-{
-	while (len--) {
-		epcs_tx (*src++);
-		epcs_rx ();
-	}
-}
-
-static void epcs_rsnd (unsigned char *src, int len)
-{
-	while (len--) {
-		epcs_tx (epcs_bitrev (*src++));
-		epcs_rx ();
-	}
-}
-
-static void epcs_wr_enable (void)
-{
-	epcs_cs (1);
-	epcs_tx (EPCS_WRITE_ENA);
-	epcs_rx ();
-	epcs_cs (0);
-}
-
-static unsigned char epcs_status_rd (void)
-{
-	unsigned char status;
-
-	epcs_cs (1);
-	epcs_tx (EPCS_READ_STAT);
-	epcs_rx ();
-	epcs_tx (0);
-	status = epcs_rx ();
-	epcs_cs (0);
-	return (status);
-}
-
-static void epcs_status_wr (unsigned char status)
-{
-	epcs_wr_enable ();
-	epcs_cs (1);
-	epcs_tx (EPCS_WRITE_STAT);
-	epcs_rx ();
-	epcs_tx (status);
-	epcs_rx ();
-	epcs_cs (0);
-	return;
-}
-
-/***********************************************************************
- * Device information
- ***********************************************************************/
-
-static struct epcs_devinfo_t devinfo[] = {
-	{ "EPCS1 ", 0x10, 17, 4, 15, 8, 0x0c },
-	{ "EPCS4 ", 0x12, 19, 8, 16, 8, 0x1c },
-	{ "EPCS16", 0x14, 21, 32, 16, 8, 0x1c },
-	{ "EPCS64", 0x16, 23,128, 16, 8, 0x1c },
-	{ 0, 0, 0, 0, 0, 0 }
-};
-
-int epcs_reset (void)
-{
-	/* When booting from an epcs controller, the epcs bootrom
-	 * code may leave the slave select in an asserted state.
-	 * This causes two problems: (1) The initial epcs access
-	 * will fail -- not a big deal, and (2) a software reset
-	 * will cause the bootrom code to hang since it does not
-	 * ensure the select is negated prior to first access -- a
-	 * big deal. Here we just negate chip select and everything
-	 * gets better :-)
-	 */
-	epcs_cs (0); /* Negate chip select */
-	return (0);
-}
-
-epcs_devinfo_t *epcs_dev_find (void)
-{
-	unsigned char buf[4];
-	unsigned char id;
-	int i;
-	struct epcs_devinfo_t *dev = NULL;
-
-	/* Read silicon id requires 3 "dummy bytes" before it's put
-	 * on the wire.
-	 */
-	buf[0] = EPCS_READ_ID;
-	buf[1] = 0;
-	buf[2] = 0;
-	buf[3] = 0;
-
-	epcs_cs (1);
-	epcs_snd (buf,4);
-	epcs_rcv (buf,1);
-	if (epcs_cs (0) == -1)
-		return (NULL);
-	id = buf[0];
-
-	/* Find the info struct */
-	i = 0;
-	while (devinfo[i].name) {
-		if (id == devinfo[i].id) {
-			dev = &devinfo[i];
-			break;
-		}
-		i++;
-	}
-
-	return (dev);
-}
-
-/***********************************************************************
- * Misc Utilities
- ***********************************************************************/
-int epcs_cfgsz (void)
-{
-	int sz = 0;
-	unsigned char buf[128];
-	unsigned char *p;
-	struct epcs_devinfo_t *dev = epcs_dev_find ();
-
-	if (!dev)
-		return (-1);
-
-	/* Read in the first 128 bytes of the device */
-	buf[0] = EPCS_READ_BYTES;
-	buf[1] = 0;
-	buf[2] = 0;
-	buf[3] = 0;
-
-	epcs_cs (1);
-	epcs_snd (buf,4);
-	epcs_rrcv (buf, sizeof(buf));
-	epcs_cs (0);
-
-	/* Search for the starting 0x6a which is followed by the
-	 * 4-byte 'register' and 4-byte bit-count.
-	 */
-	p = buf;
-	while (p < buf + sizeof(buf)-8) {
-		if ( *p == 0x6a ) {
-			/* Point to bit count and extract */
-			p += 5;
-			sz = *p++;
-			sz |= *p++ << 8;
-			sz |= *p++ << 16;
-			sz |= *p++ << 24;
-			/* Convert to byte count */
-			sz += 7;
-			sz >>= 3;
-		} else if (*p == 0xff) {
-			/* 0xff is ok ... just skip */
-			p++;
-			continue;
-		} else {
-			/* Not 0xff or 0x6a ... something's not
-			 * right ... report 'unknown' (sz=0).
-			 */
-			break;
-		}
-	}
-	return (sz);
-}
-
-int epcs_erase (unsigned start, unsigned end)
-{
-	unsigned off, sectsz;
-	unsigned char buf[4];
-	struct epcs_devinfo_t *dev = epcs_dev_find ();
-
-	if (!dev || (start>end))
-		return (-1);
-
-	/* Erase the requested sectors. An address is required
-	 * that lies within the requested sector -- we'll just
-	 * use the first address in the sector.
-	 */
-	printf ("epcs erasing sector %d ", start);
-	if (start != end)
-		printf ("to %d ", end);
-	sectsz = (1 << dev->sz_sect);
-	while (start <= end) {
-		off = start * sectsz;
-		start++;
-
-		buf[0] = EPCS_ERASE_SECT;
-		buf[1] = off >> 16;
-		buf[2] = off >> 8;
-		buf[3] = off;
-
-		epcs_wr_enable ();
-		epcs_cs (1);
-		epcs_snd (buf,4);
-		epcs_cs (0);
-
-		printf ("."); /* Some user feedback */
-
-		/* Wait for erase to complete */
-		while (epcs_status_rd() & EPCS_STATUS_WIP)
-			;
-	}
-	printf (" done.\n");
-	return (0);
-}
-
-int epcs_read (ulong addr, ulong off, ulong cnt)
-{
-	unsigned char buf[4];
-	struct epcs_devinfo_t *dev = epcs_dev_find ();
-
-	if (!dev)
-		return (-1);
-
-	buf[0] = EPCS_READ_BYTES;
-	buf[1] = off >> 16;
-	buf[2] = off >> 8;
-	buf[3] = off;
-
-	epcs_cs (1);
-	epcs_snd (buf,4);
-	epcs_rrcv ((unsigned char *)addr, cnt);
-	epcs_cs (0);
-
-	return (0);
-}
-
-int epcs_write (ulong addr, ulong off, ulong cnt)
-{
-	ulong wrcnt;
-	unsigned pgsz;
-	unsigned char buf[4];
-	struct epcs_devinfo_t *dev = epcs_dev_find ();
-
-	if (!dev)
-		return (-1);
-
-	pgsz = (1<<dev->sz_page);
-	while (cnt) {
-		if (off % pgsz)
-			wrcnt = pgsz - (off % pgsz);
-		else
-			wrcnt = pgsz;
-		wrcnt = (wrcnt > cnt) ? cnt : wrcnt;
-
-		buf[0] = EPCS_WRITE_BYTES;
-		buf[1] = off >> 16;
-		buf[2] = off >> 8;
-		buf[3] = off;
-
-		epcs_wr_enable ();
-		epcs_cs (1);
-		epcs_snd (buf,4);
-		epcs_rsnd ((unsigned char *)addr, wrcnt);
-		epcs_cs (0);
-
-		/* Wait for write to complete */
-		while (epcs_status_rd() & EPCS_STATUS_WIP)
-			;
-
-		cnt -= wrcnt;
-		off += wrcnt;
-		addr += wrcnt;
-	}
-
-	return (0);
-}
-
-int epcs_verify (ulong addr, ulong off, ulong cnt, ulong *err)
-{
-	ulong rdcnt;
-	unsigned char buf[256];
-	unsigned char *start,*end;
-	int i;
-
-	start = end = (unsigned char *)addr;
-	while (cnt) {
-		rdcnt = (cnt>sizeof(buf)) ? sizeof(buf) : cnt;
-		epcs_read ((ulong)buf, off, rdcnt);
-		for (i=0; i<rdcnt; i++) {
-			if (*end != buf[i]) {
-				*err = end - start;
-				return(-1);
-			}
-			end++;
-		}
-		cnt -= rdcnt;
-		off += rdcnt;
-	}
-	return (0);
-}
-
-static int epcs_sect_erased (int sect, unsigned *offset,
-		struct epcs_devinfo_t *dev)
-{
-	unsigned char buf[128];
-	unsigned off, end;
-	unsigned sectsz;
-	int i;
-
-	sectsz = (1 << dev->sz_sect);
-	off = sectsz * sect;
-	end = off + sectsz;
-
-	while (off < end) {
-		epcs_read ((ulong)buf, off, sizeof(buf));
-		for (i=0; i < sizeof(buf); i++) {
-			if (buf[i] != 0xff) {
-				*offset = off + i;
-				return (0);
-			}
-		}
-		off += sizeof(buf);
-	}
-	return (1);
-}
-
-
-/***********************************************************************
- * Commands
- ***********************************************************************/
-static
-void do_epcs_info (struct epcs_devinfo_t *dev, int argc, char *argv[])
-{
-	int i;
-	unsigned char stat;
-	unsigned tmp;
-	int erased;
-
-	/* Basic device info */
-	printf ("%s: %d kbytes (%d sectors x %d kbytes,"
-		" %d bytes/page)\n",
-		dev->name, 1 << (dev->size-10),
-		dev->num_sects, 1 << (dev->sz_sect-10),
-		1 << dev->sz_page );
-
-	/* Status -- for now protection is all-or-nothing */
-	stat = epcs_status_rd();
-	printf ("status: 0x%02x (WIP:%d, WEL:%d, PROT:%s)\n",
-		stat,
-		(stat & EPCS_STATUS_WIP) ? 1 : 0,
-	        (stat & EPCS_STATUS_WEL) ? 1 : 0,
-		(stat & dev->prot_mask) ? "on" : "off" );
-
-	/* Configuration  */
-	tmp = epcs_cfgsz ();
-	if (tmp) {
-		printf ("config: 0x%06x (%d) bytes\n", tmp, tmp );
-	} else {
-		printf ("config: unknown\n" );
-	}
-
-	/* Sector info */
-	for (i=0; (i < dev->num_sects) && (argc > 1); i++) {
-		erased = epcs_sect_erased (i, &tmp, dev);
-		if ((i & 0x03) == 0) printf ("\n");
-		printf ("%4d: %07x ",
-			i, i*(1<<dev->sz_sect) );
-		if (erased)
-			printf ("E ");
-		else
-			printf ("  ");
-	}
-	printf ("\n");
-
-	return;
-}
-
-static
-void do_epcs_erase (struct epcs_devinfo_t *dev, int argc, char *argv[])
-{
-	unsigned start,end;
-
-	if ((argc < 3) || (argc > 4)) {
-		printf ("USAGE: epcs erase sect [end]\n");
-		return;
-	}
-	if ((epcs_status_rd() & dev->prot_mask) != 0) {
-		printf ( "epcs: device protected.\n");
-		return;
-	}
-
-	start = simple_strtoul (argv[2], NULL, 10);
-	if (argc > 3)
-		end = simple_strtoul (argv[3], NULL, 10);
-	else
-		end = start;
-	if ((start >= dev->num_sects) || (start > end)) {
-		printf ("epcs: invalid sector range: [%d:%d]\n",
-			start, end );
-		return;
-	}
-
-	epcs_erase (start, end);
-
-	return;
-}
-
-static
-void do_epcs_protect (struct epcs_devinfo_t *dev, int argc, char *argv[])
-{
-	unsigned char stat;
-
-	/* For now protection is all-or-nothing to keep things
-	 * simple. The protection bits don't map in a linear
-	 * fashion ... and we would rather protect the bottom
-	 * of the device since it contains the config data and
-	 * leave the top unprotected for app use. But unfortunately
-	 * protection works from top-to-bottom so it does
-	 * really help very much from a software app point-of-view.
-	 */
-	if (argc < 3) {
-		printf ("USAGE: epcs protect on | off\n");
-		return;
-	}
-	if (!dev)
-		return;
-
-	/* Protection on/off is just a matter of setting/clearing
-	 * all protection bits in the status register.
-	 */
-	stat = epcs_status_rd ();
-	if (strcmp ("on", argv[2]) == 0) {
-		stat |= dev->prot_mask;
-	} else if (strcmp ("off", argv[2]) == 0 ) {
-		stat &= ~dev->prot_mask;
-	} else {
-		printf ("epcs: unknown protection: %s\n", argv[2]);
-		return;
-	}
-	epcs_status_wr (stat);
-	return;
-}
-
-static
-void do_epcs_read (struct epcs_devinfo_t *dev, int argc, char *argv[])
-{
-	ulong addr,off,cnt;
-	ulong sz;
-
-	if (argc < 5) {
-		printf ("USAGE: epcs read addr offset count\n");
-		return;
-	}
-
-	sz = 1 << dev->size;
-	addr = simple_strtoul (argv[2], NULL, 16);
-	off  = simple_strtoul (argv[3], NULL, 16);
-	cnt  = simple_strtoul (argv[4], NULL, 16);
-	if (off > sz) {
-		printf ("offset is greater than device size"
-			"... aborting.\n");
-		return;
-	}
-	if ((off + cnt) > sz) {
-		printf ("request exceeds device size"
-			"... truncating.\n");
-		cnt = sz - off;
-	}
-	printf ("epcs: read %08lx <- %06lx (0x%lx bytes)\n",
-			addr, off, cnt);
-	epcs_read (addr, off, cnt);
-
-	return;
-}
-
-static
-void do_epcs_write (struct epcs_devinfo_t *dev, int argc, char *argv[])
-{
-	ulong addr,off,cnt;
-	ulong sz;
-	ulong err;
-
-	if (argc < 5) {
-		printf ("USAGE: epcs write addr offset count\n");
-		return;
-	}
-	if ((epcs_status_rd() & dev->prot_mask) != 0) {
-		printf ( "epcs: device protected.\n");
-		return;
-	}
-
-	sz = 1 << dev->size;
-	addr = simple_strtoul (argv[2], NULL, 16);
-	off  = simple_strtoul (argv[3], NULL, 16);
-	cnt  = simple_strtoul (argv[4], NULL, 16);
-	if (off > sz) {
-		printf ("offset is greater than device size"
-			"... aborting.\n");
-		return;
-	}
-	if ((off + cnt) > sz) {
-		printf ("request exceeds device size"
-			"... truncating.\n");
-		cnt = sz - off;
-	}
-	printf ("epcs: write %08lx -> %06lx (0x%lx bytes)\n",
-			addr, off, cnt);
-	epcs_write (addr, off, cnt);
-	if (epcs_verify (addr, off, cnt, &err) != 0)
-		printf ("epcs: write error at offset %06lx\n", err);
-
-	return;
-}
-
-static
-void do_epcs_verify (struct epcs_devinfo_t *dev, int argc, char *argv[])
-{
-	ulong addr,off,cnt;
-	ulong sz;
-	ulong err;
-
-	if (argc < 5) {
-		printf ("USAGE: epcs verify addr offset count\n");
-		return;
-	}
-
-	sz = 1 << dev->size;
-	addr = simple_strtoul (argv[2], NULL, 16);
-	off  = simple_strtoul (argv[3], NULL, 16);
-	cnt  = simple_strtoul (argv[4], NULL, 16);
-	if (off > sz) {
-		printf ("offset is greater than device size"
-			"... aborting.\n");
-		return;
-	}
-	if ((off + cnt) > sz) {
-		printf ("request exceeds device size"
-			"... truncating.\n");
-		cnt = sz - off;
-	}
-	printf ("epcs: verify %08lx -> %06lx (0x%lx bytes)\n",
-			addr, off, cnt);
-	if (epcs_verify (addr, off, cnt, &err) != 0)
-		printf ("epcs: verify error at offset %06lx\n", err);
-
-	return;
-}
-
-/*-----------------------------------------------------------------------*/
-int do_epcs (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
-	int len;
-	struct epcs_devinfo_t *dev = epcs_dev_find ();
-
-	if (!dev) {
-		printf ("epcs: device not found.\n");
-		return (-1);
-	}
-
-	if (argc < 2) {
-		do_epcs_info (dev, argc, argv);
-		return (0);
-	}
-
-	len = strlen (argv[1]);
-	if (strncmp ("info", argv[1], len) == 0) {
-		do_epcs_info (dev, argc, argv);
-	} else if (strncmp ("erase", argv[1], len) == 0) {
-		do_epcs_erase (dev, argc, argv);
-	} else if (strncmp ("protect", argv[1], len) == 0) {
-		do_epcs_protect (dev, argc, argv);
-	} else if (strncmp ("read", argv[1], len) == 0) {
-		do_epcs_read (dev, argc, argv);
-	} else if (strncmp ("write", argv[1], len) == 0) {
-		do_epcs_write (dev, argc, argv);
-	} else if (strncmp ("verify", argv[1], len) == 0) {
-		do_epcs_verify (dev, argc, argv);
-	} else {
-		printf ("epcs: unknown operation: %s\n", argv[1]);
-	}
-
-	return (0);
-}
-
-/*-----------------------------------------------------------------------*/
-
-
-U_BOOT_CMD( epcs, 5, 0, do_epcs, SHORT_HELP, LONG_HELP );
-
-#endif /* CONFIG_NIOS_EPCS */
diff --git a/cpu/nios2/exceptions.S b/cpu/nios2/exceptions.S
deleted file mode 100644
index b9c7a58..0000000
--- a/cpu/nios2/exceptions.S
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
- * Scott McNutt <smcnutt@psyent.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 <config.h>
-#include <asm/opcodes.h>
-
-
-	.text
-	.align	4
-
-	.global _exception
-
-	.set noat
-	.set nobreak
-
-_exception:
-	/* SAVE ALL REGS -- this allows trap and unimplemented
-	 * instruction handlers to be coded conveniently in C
-	 */
-	addi	sp, sp, -(33*4)
-	stw	r0, 0(sp)
-	stw	r1, 4(sp)
-	stw	r2, 8(sp)
-	stw	r3, 12(sp)
-	stw	r4, 16(sp)
-	stw	r5, 20(sp)
-	stw	r6, 24(sp)
-	stw	r7, 28(sp)
-	stw	r8, 32(sp)
-	stw	r9, 36(sp)
-	stw	r10, 40(sp)
-	stw	r11, 44(sp)
-	stw	r12, 48(sp)
-	stw	r13, 52(sp)
-	stw	r14, 56(sp)
-	stw	r15, 60(sp)
-	stw	r16, 64(sp)
-	stw	r17, 68(sp)
-	stw	r19, 72(sp)
-	stw	r19, 76(sp)
-	stw	r20, 80(sp)
-	stw	r21, 84(sp)
-	stw	r22, 88(sp)
-	stw	r23, 92(sp)
-	stw	r24, 96(sp)
-	stw	r25, 100(sp)
-	stw	r26, 104(sp)
-	stw	r27, 108(sp)
-	stw	r28, 112(sp)
-	stw	r29, 116(sp)
-	stw	r30, 120(sp)
-	stw	r31, 124(sp)
-	rdctl	et, estatus
-	stw	et, 128(sp)
-
-	/* If interrupts are disabled -- software interrupt */
-	rdctl	et, estatus
-	andi	et, et, 1
-	beq	et, r0, 0f
-
-	/* If no interrupts are pending -- software interrupt */
-	rdctl	et, ipending
-	beq	et, r0, 0f
-
-	/* HARDWARE INTERRUPT: Call interrupt handler */
-	movhi	r3, %hi(external_interrupt)
-	ori	r3, r3, %lo(external_interrupt)
-	mov	r4, sp		/* ptr to regs */
-	callr	r3
-
-	/* Return address fixup: execution resumes by re-issue of
-	 * interrupted instruction at ea-4 (ea == r29). Here we do
-	 * simple fixup to allow common exception return.
-	 */
-	ldw	r3, 116(sp)
-	addi	r3, r3, -4
-	stw	r3, 116(sp)
-	br	_exception_return
-
-0:
-	/* TRAP EXCEPTION */
-	movhi	r3, %hi(OPC_TRAP)
-	ori	r3, r3, %lo(OPC_TRAP)
-	addi	r1, ea, -4
-	ldw	r1, 0(r1)
-	bne	r1, r3, 1f
-	movhi	r3, %hi(trap_handler)
-	ori	r3, r3, %lo(trap_handler)
-	mov	r4, sp		/* ptr to regs */
-	callr	r3
-	br	_exception_return
-
-1:
-	/* UNIMPLEMENTED INSTRUCTION EXCEPTION */
-	movhi	r3, %hi(soft_emulation)
-	ori	r3, r3, %lo(soft_emulation)
-	mov	r4, sp		/* ptr to regs */
-	callr	r3
-
-	/* Restore regsisters and return from exception*/
-_exception_return:
-	ldw	r1, 4(sp)
-	ldw	r2, 8(sp)
-	ldw	r3, 12(sp)
-	ldw	r4, 16(sp)
-	ldw	r5, 20(sp)
-	ldw	r6, 24(sp)
-	ldw	r7, 28(sp)
-	ldw	r8, 32(sp)
-	ldw	r9, 36(sp)
-	ldw	r10, 40(sp)
-	ldw	r11, 44(sp)
-	ldw	r12, 48(sp)
-	ldw	r13, 52(sp)
-	ldw	r14, 56(sp)
-	ldw	r15, 60(sp)
-	ldw	r16, 64(sp)
-	ldw	r17, 68(sp)
-	ldw	r19, 72(sp)
-	ldw	r19, 76(sp)
-	ldw	r20, 80(sp)
-	ldw	r21, 84(sp)
-	ldw	r22, 88(sp)
-	ldw	r23, 92(sp)
-	ldw	r24, 96(sp)
-	ldw	r25, 100(sp)
-	ldw	r26, 104(sp)
-	ldw	r27, 108(sp)
-	ldw	r28, 112(sp)
-	ldw	r29, 116(sp)
-	ldw	r30, 120(sp)
-	ldw	r31, 124(sp)
-	addi	sp, sp, (33*4)
-	eret
-/*-------------------------------------------------------------*/
diff --git a/cpu/nios2/interrupts.c b/cpu/nios2/interrupts.c
deleted file mode 100644
index b552db4..0000000
--- a/cpu/nios2/interrupts.c
+++ /dev/null
@@ -1,265 +0,0 @@
-/*
- * (C) Copyright 2000-2002
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
- * Scott McNutt <smcnutt@psyent.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 <nios2.h>
-#include <nios2-io.h>
-#include <asm/types.h>
-#include <asm/io.h>
-#include <asm/ptrace.h>
-#include <common.h>
-#include <command.h>
-#include <watchdog.h>
-#ifdef CONFIG_STATUS_LED
-#include <status_led.h>
-#endif
-
-#if defined(CONFIG_SYS_NIOS_TMRBASE) && !defined(CONFIG_SYS_NIOS_TMRIRQ)
-#error CONFIG_SYS_NIOS_TMRIRQ not defined (see documentation)
-#endif
-
-/****************************************************************************/
-
-struct	irq_action {
-	interrupt_handler_t *handler;
-	void *arg;
-	int count;
-};
-
-static struct irq_action vecs[32];
-
-/*************************************************************************/
-volatile ulong timestamp = 0;
-
-void reset_timer (void)
-{
-	nios_timer_t *tmr =(nios_timer_t *)CONFIG_SYS_NIOS_TMRBASE;
-
-	/* From Embedded Peripherals Handbook:
-	 *
-	 * "When the hardware is configured with Writeable period
-	 * disabled, writing to one of the period_n registers causes
-	 * the counter to reset to the fixed Timeout Period specified
-	 * at system generation time."
-	 *
-	 * Here we force a reload to prevent early timeouts from
-	 * get_timer() when the interrupt period is greater than
-	 * than 1 msec.
-	 *
-	 * Simply write to periodl with its own value to force an
-	 * internal counter reload, THEN reset the timestamp.
-	 */
-	writel (readl (&tmr->periodl), &tmr->periodl);
-	timestamp = 0;
-
-	/* From Embedded Peripherals Handbook:
-	 *
-	 * "Writing to one of the period_n registers stops the internal
-	 * counter, except when the hardware is configured with Start/Stop
-	 * control bits off. If Start/Stop control bits is off, writing
-	 * either register does not stop the counter."
-	 *
-	 * In order to accomodate either configuration, the control
-	 * register is re-written. If the counter is stopped, it will
-	 * be restarted. If it is running, the write is essentially
-	 * a nop.
-	 */
-	writel (NIOS_TIMER_ITO | NIOS_TIMER_CONT | NIOS_TIMER_START,
-			&tmr->control);
-
-}
-
-ulong get_timer (ulong base)
-{
-	WATCHDOG_RESET ();
-	return (timestamp - base);
-}
-
-void set_timer (ulong t)
-{
-	timestamp = t;
-}
-
-
-/* The board must handle this interrupt if a timer is not
- * provided.
- */
-#if defined(CONFIG_SYS_NIOS_TMRBASE)
-void tmr_isr (void *arg)
-{
-	nios_timer_t *tmr = (nios_timer_t *)arg;
-	/* Interrupt is cleared by writing anything to the
-	 * status register.
-	 */
-	writel (0, &tmr->status);
-	timestamp += CONFIG_SYS_NIOS_TMRMS;
-#ifdef CONFIG_STATUS_LED
-	status_led_tick(timestamp);
-#endif
-}
-
-static void tmr_init (void)
-{
-	nios_timer_t *tmr =(nios_timer_t *)CONFIG_SYS_NIOS_TMRBASE;
-
-	writel (0, &tmr->status);
-	writel (0, &tmr->control);
-	writel (NIOS_TIMER_STOP, &tmr->control);
-
-#if defined(CONFIG_SYS_NIOS_TMRCNT)
-	writel (CONFIG_SYS_NIOS_TMRCNT & 0xffff, &tmr->periodl);
-	writel ((CONFIG_SYS_NIOS_TMRCNT >> 16) & 0xffff, &tmr->periodh);
-#endif
-	writel (NIOS_TIMER_ITO | NIOS_TIMER_CONT | NIOS_TIMER_START,
-			&tmr->control);
-	irq_install_handler (CONFIG_SYS_NIOS_TMRIRQ, tmr_isr, (void *)tmr);
-}
-
-#endif /* CONFIG_SYS_NIOS_TMRBASE */
-
-/*************************************************************************/
-int disable_interrupts (void)
-{
-	int val = rdctl (CTL_STATUS);
-	wrctl (CTL_STATUS, val & ~STATUS_IE);
-	return (val & STATUS_IE);
-}
-
-void enable_interrupts( void )
-{
-	int val = rdctl (CTL_STATUS);
-	wrctl (CTL_STATUS, val | STATUS_IE);
-}
-
-void external_interrupt (struct pt_regs *regs)
-{
-	unsigned irqs;
-	struct irq_action *act;
-
-	/* Evaluate only irqs that are both enabled AND pending */
-	irqs = rdctl (CTL_IENABLE) & rdctl (CTL_IPENDING);
-	act = vecs;
-
-	/* Assume (as does the Nios2 HAL) that bit 0 is highest
-	 * priority. NOTE: There is ALWAYS a handler assigned
-	 * (the default if no other).
-	 */
-	while (irqs) {
-		if (irqs & 1) {
-			act->handler (act->arg);
-			act->count++;
-		}
-		irqs >>=1;
-		act++;
-	}
-}
-
-static void def_hdlr (void *arg)
-{
-	unsigned irqs = rdctl (CTL_IENABLE);
-
-	/* Disable the individual interrupt -- with gratuitous
-	 * warning.
-	 */
-	irqs &= ~(1 << (int)arg);
-	wrctl (CTL_IENABLE, irqs);
-	printf ("WARNING: Disabling unhandled interrupt: %d\n",
-			(int)arg);
-}
-
-/*************************************************************************/
-void irq_install_handler (int irq, interrupt_handler_t *hdlr, void *arg)
-{
-
-	int flag;
-	struct irq_action *act;
-	unsigned ena = rdctl (CTL_IENABLE);
-
-	if ((irq < 0) || (irq > 31))
-		return;
-	act = &vecs[irq];
-
-	flag = disable_interrupts ();
-	if (hdlr) {
-		act->handler = hdlr;
-		act->arg = arg;
-		ena |= (1 << irq);		/* enable */
-	} else {
-		act->handler = def_hdlr;
-		act->arg = (void *)irq;
-		ena &= ~(1 << irq);		/* disable */
-	}
-	wrctl (CTL_IENABLE, ena);
-	if (flag) enable_interrupts ();
-}
-
-
-int interrupt_init (void)
-{
-	int i;
-
-	/* Assign the default handler to all */
-	for (i = 0; i < 32; i++) {
-		vecs[i].handler = def_hdlr;
-		vecs[i].arg = (void *)i;
-		vecs[i].count = 0;
-	}
-
-#if defined(CONFIG_SYS_NIOS_TMRBASE)
-	tmr_init ();
-#endif
-
-	enable_interrupts ();
-	return (0);
-}
-
-
-/*************************************************************************/
-#if defined(CONFIG_CMD_IRQ)
-int do_irqinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
-	int i;
-	struct irq_action *act = vecs;
-
-	printf ("\nInterrupt-Information:\n\n");
-	printf ("Nr  Routine   Arg       Count\n");
-	printf ("-----------------------------\n");
-
-	for (i=0; i<32; i++) {
-		if (act->handler != def_hdlr) {
-			printf ("%02d  %08lx  %08lx  %d\n",
-				i,
-				(ulong)act->handler,
-				(ulong)act->arg,
-				act->count);
-		}
-		act++;
-	}
-	printf ("\n");
-
-	return (0);
-}
-#endif
diff --git a/cpu/nios2/start.S b/cpu/nios2/start.S
deleted file mode 100644
index 31cd5b0..0000000
--- a/cpu/nios2/start.S
+++ /dev/null
@@ -1,217 +0,0 @@
-/*
- * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
- * Scott McNutt <smcnutt@psyent.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 <config.h>
-#include <timestamp.h>
-#include <version.h>
-
-/*************************************************************************
- * RESTART
- ************************************************************************/
-
-	.text
-	.global _start
-
-_start:
-	/* ICACHE INIT -- only the icache line at the reset address
-	 * is invalidated at reset. So the init must stay within
-	 * the cache line size (8 words). If GERMS is used, we'll
-	 * just be invalidating the cache a second time. If cache
-	 * is not implemented initi behaves as nop.
-	 */
-	ori	r4, r0, %lo(CONFIG_SYS_ICACHELINE_SIZE)
-	movhi	r5, %hi(CONFIG_SYS_ICACHE_SIZE)
-	ori	r5, r5, %lo(CONFIG_SYS_ICACHE_SIZE)
-	mov	r6, r0
-0:	initi	r6
-	add	r6, r6, r4
-	bltu	r6, r5, 0b
-	br	_except_end	/* Skip the tramp */
-
-	/* EXCEPTION TRAMPOLINE -- the following gets copied
-	 * to the exception address (below), but is otherwise at the
-	 * default exception vector offset (0x0020).
-	 */
-_except_start:
-	movhi	et, %hi(_exception)
-	ori	et, et, %lo(_exception)
-	jmp	et
-_except_end:
-
-	/* INTERRUPTS -- for now, all interrupts masked and globally
-	 * disabled.
-	 */
-	wrctl	status, r0		/* Disable interrupts */
-	wrctl	ienable, r0		/* All disabled	*/
-
-	/* DCACHE INIT -- if dcache not implemented, initd behaves as
-	 * nop.
-	 */
-	movhi	r4, %hi(CONFIG_SYS_DCACHELINE_SIZE)
-	ori	r4, r4, %lo(CONFIG_SYS_DCACHELINE_SIZE)
-	movhi	r5, %hi(CONFIG_SYS_DCACHE_SIZE)
-	ori	r5, r5, %lo(CONFIG_SYS_DCACHE_SIZE)
-	mov	r6, r0
-1:	initd	0(r6)
-	add	r6, r6, r4
-	bltu	r6, r5, 1b
-
-	/* RELOCATE CODE, DATA & COMMAND TABLE -- the following code
-	 * assumes code, data and the command table are all
-	 * contiguous. This lets us relocate everything as a single
-	 * block. Make sure the linker script matches this ;-)
-	 */
-	nextpc	r4
-_cur:	movhi	r5, %hi(_cur - _start)
-	ori	r5, r5, %lo(_cur - _start)
-	sub	r4, r4, r5		/* r4 <- cur _start */
-	mov	r8, r4
-	movhi	r5, %hi(_start)
-	ori	r5, r5, %lo(_start)	/* r5 <- linked _start */
-	beq	r4, r5, 3f
-
-	movhi	r6, %hi(_edata)
-	ori	r6, r6, %lo(_edata)
-2:	ldwio	r7, 0(r4)
-	addi	r4, r4, 4
-	stwio	r7, 0(r5)
-	addi	r5, r5, 4
-	bne	r5, r6, 2b
-3:
-
-	/* ZERO BSS/SBSS -- bss and sbss are assumed to be adjacent
-	 * and between __bss_start and _end.
-	 */
-	 movhi	r5, %hi(__bss_start)
-	 ori	r5, r5, %lo(__bss_start)
-	 movhi	r6, %hi(_end)
-	 ori	r6, r6, %lo(_end)
-	 beq	r5, r6, 5f
-
-4:	stwio	r0, 0(r5)
-	 addi	r5, r5, 4
-	 bne	r5, r6, 4b
-5:
-
-	/* GLOBAL POINTER -- the global pointer is used to reference
-	 * "small data" (see -G switch). The linker script must
-	 * provide the gp address.
-	 */
-	 movhi	gp, %hi(_gp)
-	 ori	gp, gp, %lo(_gp)
-
-	/* JUMP TO RELOC ADDR */
-	movhi	r4, %hi(_reloc)
-	ori	r4, r4, %lo(_reloc)
-	jmp	r4
-_reloc:
-
-	/* COPY EXCEPTION TRAMPOLINE -- copy the tramp to the
-	 * exception address. Define CONFIG_ROM_STUBS to prevent
-	 * the copy (e.g. exception in flash or in other
-	 * softare/firmware component).
-	 */
-#if !defined(CONFIG_ROM_STUBS)
-	movhi	r4, %hi(_except_start)
-	ori	r4, r4, %lo(_except_start)
-	movhi	r5, %hi(_except_end)
-	ori	r5, r5, %lo(_except_end)
-	movhi	r6, %hi(CONFIG_SYS_EXCEPTION_ADDR)
-	ori	r6, r6, %lo(CONFIG_SYS_EXCEPTION_ADDR)
-	beq	r4, r6, 7f	/* Skip if at proper addr */
-
-6:	ldwio	r7, 0(r4)
-	stwio	r7, 0(r6)
-	addi	r4, r4, 4
-	addi	r6, r6, 4
-	bne	r4, r5, 6b
-7:
-#endif
-
-	/* STACK INIT -- zero top two words for call back chain.
-	 */
-	movhi	sp, %hi(CONFIG_SYS_INIT_SP)
-	ori	sp, sp, %lo(CONFIG_SYS_INIT_SP)
-	addi	sp, sp, -8
-	stw	r0, 0(sp)
-	stw	r0, 4(sp)
-	mov	fp, sp
-
-	/*
-	 * Call board_init -- never returns
-	 */
-	movhi	r4, %hi(board_init@h)
-	ori	r4, r4, %lo(board_init@h)
-	callr	r4
-
-	/* NEVER RETURNS -- but branch to the _start just
-	 * in case ;-)
-	 */
-	br	_start
-
-
-/*
- * dly_clks -- Nios2 (like Nios1) doesn't have a timebase in
- * the core. For simple delay loops, we do our best by counting
- * instruction cycles.
- *
- * Instruction performance varies based on the core. For cores
- * with icache and static/dynamic branch prediction (II/f, II/s):
- *
- *	Normal ALU (e.g. add, cmp, etc):	1 cycle
- *	Branch (correctly predicted, taken):	2 cycles
- *	Negative offset is predicted (II/s).
- *
- * For cores without icache and no branch prediction (II/e):
- *
- *	Normal ALU (e.g. add, cmp, etc):	6 cycles
- *	Branch (no prediction):			6 cycles
- *
- * For simplicity, if an instruction cache is implemented we
- * assume II/f or II/s. Otherwise, we use the II/e.
- *
- */
-	.globl dly_clks
-
-dly_clks:
-
-#if (CONFIG_SYS_ICACHE_SIZE > 0)
-	subi	r4, r4, 3		/* 3 clocks/loop	*/
-#else
-	subi	r4, r4, 12		/* 12 clocks/loop	*/
-#endif
-	bge	r4, r0, dly_clks
-	ret
-
-
-#if !defined(CONFIG_IDENT_STRING)
-#define CONFIG_IDENT_STRING ""
-#endif
-	.data
-	.globl	version_string
-
-version_string:
-	.ascii U_BOOT_VERSION
-	.ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")"
-	.ascii CONFIG_IDENT_STRING, "\0"
diff --git a/cpu/nios2/sysid.c b/cpu/nios2/sysid.c
deleted file mode 100644
index 77bc8b5..0000000
--- a/cpu/nios2/sysid.c
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
- * Scott McNutt <smcnutt@psyent.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>
-
-#if defined (CONFIG_SYS_NIOS_SYSID_BASE)
-
-#include <command.h>
-#include <asm/io.h>
-#include <nios2-io.h>
-#include <linux/time.h>
-
-void display_sysid (void)
-{
-	struct nios_sysid_t *sysid = (struct nios_sysid_t *)CONFIG_SYS_NIOS_SYSID_BASE;
-	struct tm t;
-	char asc[32];
-	time_t stamp;
-
-	stamp = readl (&sysid->timestamp);
-	localtime_r (&stamp, &t);
-	asctime_r (&t, asc);
-	printf ("SYSID : %08lx, %s", readl (&sysid->id), asc);
-
-}
-
-int do_sysid (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
-	display_sysid ();
-	return (0);
-}
-
-U_BOOT_CMD(
-	sysid,	1,	1,	do_sysid,
-	"display Nios-II system id",
-	""
-);
-#endif /* CONFIG_SYS_NIOS_SYSID_BASE */
diff --git a/cpu/nios2/traps.c b/cpu/nios2/traps.c
deleted file mode 100644
index 3f1517d..0000000
--- a/cpu/nios2/traps.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
- * Scott McNutt <smcnutt@psyent.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 <asm/ptrace.h>
-#include <common.h>
-
-void trap_handler (struct pt_regs *regs)
-{
-	/* Just issue warning */
-	printf ("\n\n*** WARNING: unimplemented trap @ %08x\n\n",
-			regs->reg[29] - 4);
-}
-
-void soft_emulation (struct pt_regs *regs)
-{
-	/* TODO: Software emulation of mul/div etc. Until this is
-	 * implemented, generate warning and hang.
-	 */
-	printf ("\n\n*** ERROR: unimplemented instruction @ %08x\n",
-			regs->reg[29] - 4);
-	hang ();
-}