From: wdenk <wdenk>
Date: Thu, 5 Jun 2003 19:27:42 +0000 (+0000)
Subject: * Add support for RMU board
X-Git-Tag: LABEL_2006_03_12_0025~856
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=73a8b27c574f5ec1c8fdd9d8d065bb845d8743d3;p=u-boot

* Add support for RMU board

* Add support for TQM862L at 100/50 MHz

* Patch by Pantelis Antoniou, 02 Jun 2003:
  major reconstruction of networking code;
  add "ping" support (outgoing only!)
---

diff --git a/CHANGELOG b/CHANGELOG
index 7fba2f4406..b613c19a80 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -11,6 +11,14 @@ Changes since U-Boot 0.3.1:
   - Changed config files of CONFIG_EEPRO100 boards to use the
     CFG_RX_ETH_BUFFER define.
 
+* Add support for RMU board
+
+* Add support for TQM862L at 100/50 MHz
+
+* Patch by Pantelis Antoniou, 02 Jun 2003:
+  major reconstruction of networking code;
+  add "ping" support (outgoing only!)
+
 * Patch by Denis Peter, 04 June 2003:
   add support for the MIP405T board
 
diff --git a/MAINTAINERS b/MAINTAINERS
index 87670b4eca..c1e5e138aa 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -63,6 +63,9 @@ Wolfgang Denk <wd@denx.de>
 	IVMS8_128		MPC860
 	IVMS8_256		MPC860
 	LANTEC			MPC850
+	LWMON			MPC823
+	R360MPI			MPC823
+	RMU			MPC850
 	RRvision		MPC823
 	SM850			MPC850
 	SPD823TS		MPC823
@@ -72,6 +75,7 @@ Wolfgang Denk <wd@denx.de>
 	TQM855L			MPC855
 	TQM860L			MPC860
 	TQM860L_FEC		MPC860
+	TTTech			MPC823
 	c2mon			MPC855
 	hermes			MPC860
 	lwmon			MPC823
diff --git a/MAKEALL b/MAKEALL
index b6f636c638..2edab7b1b8 100644
--- a/MAKEALL
+++ b/MAKEALL
@@ -32,11 +32,11 @@ LIST_8xx="	\
 	IVMS8		IVMS8_128	IVMS8_256	KUP4K           \
 	LANTEC	        lwmon   	MBX		MBX860T		\
 	MHPC		MVS1		NETVIA		NX823		\
-	pcu_e		R360MPI		RBC823		RPXClassic	\
-	RPXlite		RRvision	SM850		SPD823TS	\
-	svm_sc8xx	SXNI855T	TOP860		TQM823L		\
-	TQM823L_LCD	TQM850L		TQM855L		TQM860L		\
-	TTTech		v37						\
+	pcu_e		R360MPI		RBC823		rmu		\
+	RPXClassic	RPXlite		RRvision	SM850		\
+	SPD823TS	svm_sc8xx	SXNI855T	TOP860		\
+	TQM823L		TQM823L_LCD	TQM850L		TQM855L		\
+	TQM860L		TTTech		v37				\
 "
 
 #########################################################################
diff --git a/Makefile b/Makefile
index 8ceaad1d1e..7606b0edb9 100644
--- a/Makefile
+++ b/Makefile
@@ -323,6 +323,9 @@ RPXClassic_config:	unconfig
 RPXlite_config:		unconfig
 	@./mkconfig $(@:_config=) ppc mpc8xx RPXlite
 
+rmu_config:	unconfig
+	@./mkconfig $(@:_config=) ppc mpc8xx rmu
+
 RRvision_config:	unconfig
 	@./mkconfig $(@:_config=) ppc mpc8xx RRvision
 
@@ -349,10 +352,10 @@ TOP860_config:		unconfig
 	@./mkconfig $(@:_config=) ppc mpc8xx top860 emk
 
 # Play some tricks for configuration selection
-# All boards can come with 50 MHz (default), 66MHz or 80MHz clock,
+# All boards can come with 50 MHz (default), 66MHz, 80MHz or 100 MHz clock,
 # but only 855 and 860 boards may come with FEC
 # and 823 boards may have LCD support
-xtract_8xx = $(subst _66MHz,,$(subst _80MHz,,$(subst _LCD,,$(subst _config,,$1))))
+xtract_8xx = $(subst _66MHz,,$(subst _80MHz,,$(subst _100MHz,,$(subst _LCD,,$(subst _config,,$1)))))
 
 FPS850L_config		\
 FPS860L_config		\
@@ -373,7 +376,8 @@ TQM860L_66MHz_config	\
 TQM860L_80MHz_config	\
 TQM862L_config		\
 TQM862L_66MHz_config	\
-TQM862L_80MHz_config:	unconfig
+TQM862L_80MHz_config	\
+TQM862L_100MHz_config:	unconfig
 	@ >include/config.h
 	@[ -z "$(findstring _66MHz,$@)" ] || \
 		{ echo "#define CONFIG_66MHz"		>>include/config.h ; \
@@ -383,6 +387,10 @@ TQM862L_80MHz_config:	unconfig
 		{ echo "#define CONFIG_80MHz"		>>include/config.h ; \
 		  echo "... with 80MHz system clock" ; \
 		}
+	@[ -z "$(findstring _100MHz,$@)" ] || \
+		{ echo "#define CONFIG_100MHz"		>>include/config.h ; \
+		  echo "... with 100MHz system clock" ; \
+		}
 	@[ -z "$(findstring _LCD,$@)" ] || \
 		{ echo "#define CONFIG_LCD"		>>include/config.h ; \
 		  echo "#define CONFIG_NEC_NL6648BC20"	>>include/config.h ; \
diff --git a/board/rmu/Makefile b/board/rmu/Makefile
new file mode 100644
index 0000000000..ef173d0366
--- /dev/null
+++ b/board/rmu/Makefile
@@ -0,0 +1,40 @@
+#
+# (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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	= $(BOARD).o flash.o
+
+$(LIB):	.depend $(OBJS)
+	$(AR) crv $@ $^
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################
diff --git a/board/rmu/config.mk b/board/rmu/config.mk
new file mode 100644
index 0000000000..7cb374eb85
--- /dev/null
+++ b/board/rmu/config.mk
@@ -0,0 +1,28 @@
+#
+# (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
+#
+
+#
+# RMU boards
+#
+
+TEXT_BASE = 0xfff00000
diff --git a/board/rmu/flash.c b/board/rmu/flash.c
new file mode 100644
index 0000000000..c05cf324ff
--- /dev/null
+++ b/board/rmu/flash.c
@@ -0,0 +1,515 @@
+/*
+ * (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
+ */
+
+#include <common.h>
+#include <mpc8xx.h>
+
+flash_info_t	flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips	*/
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size (vu_long *addr, flash_info_t *info);
+static int write_word (flash_info_t *info, ulong dest, ulong data);
+static void flash_get_offsets (ulong base, flash_info_t *info);
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init (void)
+{
+	volatile immap_t     *immap  = (immap_t *)CFG_IMMR;
+	volatile memctl8xx_t *memctl = &immap->im_memctl;
+	unsigned long size_b0 ;
+	int i;
+
+	/* Init: no FLASHes known */
+	for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
+		flash_info[i].flash_id = FLASH_UNKNOWN;
+	}
+
+	/* Static FLASH Bank configuration here - FIXME XXX */
+	size_b0 = flash_get_size((vu_long *)FLASH_BASE_PRELIM, &flash_info[0]);
+	if (flash_info[0].flash_id == FLASH_UNKNOWN) {
+		printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
+			size_b0, size_b0<<20);
+	}
+
+	/* Remap FLASH according to real size */
+	memctl->memc_or0 = CFG_OR_TIMING_FLASH | (-size_b0 & 0xFFFF8000);
+	memctl->memc_br0 = (CFG_FLASH_BASE & BR_BA_MSK) | BR_MS_GPCM | BR_V;
+
+	/* Re-do sizing to get full correct info */
+
+	size_b0 = flash_get_size((vu_long *)CFG_FLASH_BASE, &flash_info[0]);
+	flash_get_offsets (CFG_FLASH_BASE, &flash_info[0]);
+
+#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
+	/* monitor protection ON by default */
+	flash_protect(FLAG_PROTECT_SET,
+		      CFG_MONITOR_BASE,
+		      CFG_MONITOR_BASE+monitor_flash_len-1,
+		      &flash_info[0]);
+#endif
+
+#ifdef	CFG_ENV_IS_IN_FLASH
+	/* ENV protection ON by default */
+	flash_protect(FLAG_PROTECT_SET,
+		      CFG_ENV_ADDR,
+		      CFG_ENV_ADDR+CFG_ENV_SIZE-1,
+		      &flash_info[0]);
+#endif
+
+	flash_info[0].size = size_b0;
+
+	return (size_b0);
+}
+
+/*-----------------------------------------------------------------------
+ */
+static void flash_get_offsets (ulong base, flash_info_t *info)
+{
+	int i;
+
+	/* set up sector start address table */
+	if (info->flash_id & FLASH_BTYPE) {
+		/* set sector offsets for bottom boot block type	*/
+		info->start[0] = base + 0x00000000;
+		info->start[1] = base + 0x00010000;
+		info->start[2] = base + 0x00018000;
+		info->start[3] = base + 0x00020000;
+		for (i = 4; i < info->sector_count; i++) {
+			info->start[i] = base + ((i-3) * 0x00040000) ;
+		}
+	} else {
+		/* set sector offsets for top boot block type		*/
+		i = info->sector_count - 1;
+		info->start[i--] = base + info->size - 0x00010000;
+		info->start[i--] = base + info->size - 0x00018000;
+		info->start[i--] = base + info->size - 0x00020000;
+		for (; i >= 0; i--) {
+			info->start[i] = base + i * 0x00040000;
+		}
+	}
+
+}
+
+/*-----------------------------------------------------------------------
+ */
+void flash_print_info  (flash_info_t *info)
+{
+	int i;
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		printf ("missing or unknown FLASH type\n");
+		return;
+	}
+
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case FLASH_MAN_AMD:	printf ("AMD ");		break;
+	case FLASH_MAN_FUJ:	printf ("FUJITSU ");		break;
+	default:		printf ("Unknown Vendor ");	break;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case FLASH_AM400B:	printf ("AM29LV400B (4 Mbit, bottom boot sect)\n");
+				break;
+	case FLASH_AM400T:	printf ("AM29LV400T (4 Mbit, top boot sector)\n");
+				break;
+	case FLASH_AM800B:	printf ("AM29LV800B (8 Mbit, bottom boot sect)\n");
+				break;
+	case FLASH_AM800T:	printf ("AM29LV800T (8 Mbit, top boot sector)\n");
+				break;
+	case FLASH_AM160B:	printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
+				break;
+	case FLASH_AM160T:	printf ("AM29LV160T (16 Mbit, top boot sector)\n");
+				break;
+	case FLASH_AM320B:	printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
+				break;
+	case FLASH_AM320T:	printf ("AM29LV320T (32 Mbit, top boot sector)\n");
+				break;
+	default:		printf ("Unknown Chip Type\n");
+				break;
+	}
+
+	printf ("  Size: %ld MB in %d Sectors\n",
+		info->size >> 20, info->sector_count);
+
+	printf ("  Sector Start Addresses:");
+	for (i=0; i<info->sector_count; ++i) {
+		if ((i % 5) == 0)
+			printf ("\n   ");
+		printf (" %08lX%s",
+			info->start[i],
+			info->protect[i] ? " (RO)" : "     "
+		);
+	}
+	printf ("\n");
+	return;
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+
+/*-----------------------------------------------------------------------
+ */
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+
+static ulong flash_get_size (vu_long *addr, flash_info_t *info)
+{
+	short i;
+	ulong value;
+	ulong base = (ulong)addr;
+
+	/* Write auto select command: read Manufacturer ID */
+	addr[0xAAA] = 0xAAAAAAAA ;
+	addr[0x555] = 0x55555555 ;
+	addr[0xAAA] = 0x90909090 ;
+
+	value = addr[0] ;
+
+	switch (value & 0x00FF00FF) {
+	case AMD_MANUFACT:
+		info->flash_id = FLASH_MAN_AMD;
+		break;
+	case FUJ_MANUFACT:
+		info->flash_id = FLASH_MAN_FUJ;
+		break;
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		info->sector_count = 0;
+		info->size = 0;
+		return (0);			/* no or unknown flash	*/
+	}
+
+	value = addr[2] ;		/* device ID		*/
+
+	switch (value & 0x00FF00FF) {
+	case (AMD_ID_LV400T & 0x00FF00FF):
+		info->flash_id += FLASH_AM400T;
+		info->sector_count = 11;
+		info->size = 0x00100000;
+		break;				/* => 1 MB		*/
+
+	case (AMD_ID_LV400B & 0x00FF00FF):
+		info->flash_id += FLASH_AM400B;
+		info->sector_count = 11;
+		info->size = 0x00100000;
+		break;				/* => 1 MB		*/
+
+	case (AMD_ID_LV800T & 0x00FF00FF):
+		info->flash_id += FLASH_AM800T;
+		info->sector_count = 19;
+		info->size = 0x00200000;
+		break;				/* => 2 MB		*/
+
+	case (AMD_ID_LV800B & 0x00FF00FF):
+		info->flash_id += FLASH_AM800B;
+		info->sector_count = 19;
+		info->size = 0x00400000;	/*%%% Size doubled by yooth */
+		break;				/* => 4 MB		*/
+
+	case (AMD_ID_LV160T & 0x00FF00FF):
+		info->flash_id += FLASH_AM160T;
+		info->sector_count = 35;
+		info->size = 0x00400000;
+		break;				/* => 4 MB		*/
+
+	case (AMD_ID_LV160B & 0x00FF00FF):
+		info->flash_id += FLASH_AM160B;
+		info->sector_count = 35;
+		info->size = 0x00800000;
+		break;				/* => 8 MB		*/
+#if 0	/* enable when device IDs are available */
+	case AMD_ID_LV320T:
+		info->flash_id += FLASH_AM320T;
+		info->sector_count = 67;
+		info->size = 0x00800000;
+		break;				/* => 8 MB		*/
+
+	case AMD_ID_LV320B:
+		info->flash_id += FLASH_AM320B;
+		info->sector_count = 67;
+		info->size = 0x01000000;
+		break;				/* => 16 MB		*/
+#endif
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		return (0);			/* => no or unknown flash */
+
+	}
+	/*%%% sector start address modified */
+	/* set up sector start address table */
+	if (info->flash_id & FLASH_BTYPE) {
+		/* set sector offsets for bottom boot block type	*/
+		info->start[0] = base + 0x00000000;
+		info->start[1] = base + 0x00010000;
+		info->start[2] = base + 0x00018000;
+		info->start[3] = base + 0x00020000;
+		for (i = 4; i < info->sector_count; i++) {
+			info->start[i] = base + ((i-3) * 0x00040000) ;
+		}
+	} else {
+		/* set sector offsets for top boot block type		*/
+		i = info->sector_count - 1;
+		info->start[i--] = base + info->size - 0x00010000;
+		info->start[i--] = base + info->size - 0x00018000;
+		info->start[i--] = base + info->size - 0x00020000;
+		for (; i >= 0; i--) {
+			info->start[i] = base + i * 0x00040000;
+		}
+	}
+
+	/* check for protected sectors */
+	for (i = 0; i < info->sector_count; i++) {
+		/* read sector protection at sector address, (A7 .. A0) = 0x02 */
+		/* D0 = 1 if protected */
+		addr = (volatile unsigned long *)(info->start[i]);
+		info->protect[i] = addr[4] & 1 ;
+	}
+
+	/*
+	 * Prevent writes to uninitialized FLASH.
+	 */
+	if (info->flash_id != FLASH_UNKNOWN) {
+		addr = (volatile unsigned long *)info->start[0];
+
+		*addr = 0xF0F0F0F0;	/* reset bank */
+	}
+
+	return (info->size);
+}
+
+
+/*-----------------------------------------------------------------------
+ */
+
+int	flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+	vu_long *addr = (vu_long*)(info->start[0]);
+	int flag, prot, sect, l_sect;
+	ulong start, now, last;
+
+	if ((s_first < 0) || (s_first > s_last)) {
+		if (info->flash_id == FLASH_UNKNOWN) {
+			printf ("- missing\n");
+		} else {
+			printf ("- no sectors to erase\n");
+		}
+		return 1;
+	}
+
+	if ((info->flash_id == FLASH_UNKNOWN) ||
+	    (info->flash_id > FLASH_AMD_COMP)) {
+		printf ("Can't erase unknown flash type %08lx - aborted\n",
+			info->flash_id);
+		return 1;
+	}
+
+	prot = 0;
+	for (sect=s_first; sect<=s_last; ++sect) {
+		if (info->protect[sect]) {
+			prot++;
+		}
+	}
+
+	if (prot) {
+		printf ("- Warning: %d protected sectors will not be erased!\n",
+			prot);
+	} else {
+		printf ("\n");
+	}
+
+	l_sect = -1;
+
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts();
+
+	addr[0xAAA] = 0xAAAAAAAA;
+	addr[0x555] = 0x55555555;
+	addr[0xAAA] = 0x80808080;
+	addr[0xAAA] = 0xAAAAAAAA;
+	addr[0x555] = 0x55555555;
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect<=s_last; sect++) {
+		if (info->protect[sect] == 0) {	/* not protected */
+			addr = (vu_long *)(info->start[sect]) ;
+			addr[0] = 0x30303030 ;
+			l_sect = sect;
+		}
+	}
+
+	/* re-enable interrupts if necessary */
+	if (flag)
+		enable_interrupts();
+
+	/* wait at least 80us - let's wait 1 ms */
+	udelay (1000);
+
+	/*
+	 * We wait for the last triggered sector
+	 */
+	if (l_sect < 0)
+		goto DONE;
+
+	start = get_timer (0);
+	last  = start;
+	addr = (vu_long *)(info->start[l_sect]);
+	while ((addr[0] & 0x80808080) != 0x80808080) {
+		if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
+			printf ("Timeout\n");
+			return 1;
+		}
+		/* show that we're waiting */
+		if ((now - last) > 1000) {	/* every second */
+			putc ('.');
+			last = now;
+		}
+	}
+
+DONE:
+	/* reset to read mode */
+	addr = (vu_long *)info->start[0];
+	addr[0] = 0xF0F0F0F0;	/* reset bank */
+
+	printf (" done\n");
+	return 0;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+
+int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
+{
+	ulong cp, wp, data;
+	int i, l, rc;
+
+	wp = (addr & ~3);	/* get lower word aligned address */
+
+	/*
+	 * handle unaligned start bytes
+	 */
+	if ((l = addr - wp) != 0) {
+		data = 0;
+		for (i=0, cp=wp; i<l; ++i, ++cp) {
+			data = (data << 8) | (*(uchar *)cp);
+		}
+		for (; i<4 && cnt>0; ++i) {
+			data = (data << 8) | *src++;
+			--cnt;
+			++cp;
+		}
+		for (; cnt==0 && i<4; ++i, ++cp) {
+			data = (data << 8) | (*(uchar *)cp);
+		}
+
+		if ((rc = write_word(info, wp, data)) != 0) {
+			return (rc);
+		}
+		wp += 4;
+	}
+
+	/*
+	 * handle word aligned part
+	 */
+	while (cnt >= 4) {
+		data = 0;
+		for (i=0; i<4; ++i) {
+			data = (data << 8) | *src++;
+		}
+		if ((rc = write_word(info, wp, data)) != 0) {
+			return (rc);
+		}
+		wp  += 4;
+		cnt -= 4;
+	}
+
+	if (cnt == 0) {
+		return (0);
+	}
+
+	/*
+	 * handle unaligned tail bytes
+	 */
+	data = 0;
+	for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
+		data = (data << 8) | *src++;
+		--cnt;
+	}
+	for (; i<4; ++i, ++cp) {
+		data = (data << 8) | (*(uchar *)cp);
+	}
+
+	return (write_word(info, wp, data));
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_word (flash_info_t *info, ulong dest, ulong data)
+{
+	vu_long *addr = (vu_long *)(info->start[0]);
+	ulong start;
+	int flag;
+
+	/* Check if Flash is (sufficiently) erased */
+	if ((*((vu_long *)dest) & data) != data) {
+		return (2);
+	}
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts();
+
+	addr[0xAAA] = 0xAAAAAAAA;
+	addr[0x555] = 0x55555555;
+	addr[0xAAA] = 0xA0A0A0A0;
+
+	*((vu_long *)dest) = data;
+
+	/* re-enable interrupts if necessary */
+	if (flag)
+		enable_interrupts();
+
+	/* data polling for D7 */
+	start = get_timer (0);
+	while ((*((vu_long *)dest) & 0x80808080) != (data & 0x80808080)) {
+		if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+			return (1);
+		}
+	}
+	return (0);
+}
+
+/*-----------------------------------------------------------------------
+ */
diff --git a/board/rmu/rmu.c b/board/rmu/rmu.c
new file mode 100644
index 0000000000..c9925d09a3
--- /dev/null
+++ b/board/rmu/rmu.c
@@ -0,0 +1,184 @@
+/*
+ * (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
+ */
+
+
+#include <common.h>
+#include <mpc8xx.h>
+
+/* ------------------------------------------------------------------------- */
+
+static long int dram_size (long int, long int *, long int);
+
+/* ------------------------------------------------------------------------- */
+
+#define	_NOT_USED_	0xFFFFCC25
+
+const uint sdram_table[] =
+{
+	/*
+	 * Single Read. (Offset 00h in UPMA RAM)
+	 */
+	0x0F03CC04, 0x00ACCC24, 0x1FF74C20, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+	/*
+	 * Burst Read. (Offset 08h in UPMA RAM)
+	 */
+	0x0F03CC04, 0x00ACCC24, 0x00FFCC20, 0x00FFCC20,
+	0x01FFCC20, 0x1FF74C20, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+	/*
+	 * Single Write. (Offset 18h in UPMA RAM)
+	 */
+	0x0F03CC02, 0x00AC0C24, 0x1FF74C25, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+	/*
+	 * Burst Write. (Offset 20h in UPMA RAM)
+	 */
+	0x0F03CC00, 0x00AC0C20, 0x00FFFC20, 0x00FFFC22,
+	0x01FFFC24, 0x1FF74C25, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+	/*
+	 * Refresh. (Offset 30h in UPMA RAM)
+	 * (Initialization code at 0x36)
+	 */
+	0x0FF0CC24, 0xFFFFCC24, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, 0xEFFB8C34, 0x0FF74C34,
+	0x0FFACCB4, 0x0FF5CC34, 0x0FFCC34, 0x0FFFCCB4,
+
+	/*
+	 * Exception. (Offset 3Ch in UPMA RAM)
+	 */
+	0x0FEA8C34, 0x1FB54C34, 0xFFFFCC34, _NOT_USED_
+};
+
+/* ------------------------------------------------------------------------- */
+
+
+/*
+ * Check Board Identity:
+ */
+
+int checkboard (void)
+{
+	puts ("Board: RMU\n") ;
+	return (0) ;
+}
+
+/* ------------------------------------------------------------------------- */
+
+long int initdram (int board_type)
+{
+    volatile immap_t     *immap  = (immap_t *)CFG_IMMR;
+    volatile memctl8xx_t *memctl = &immap->im_memctl;
+    long int size10 ;
+
+    upmconfig(UPMA, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
+
+	/* Refresh clock prescalar */
+    memctl->memc_mptpr = CFG_MPTPR ;
+
+    memctl->memc_mar  = 0x00000088;
+
+	/* Map controller banks 1 to the SDRAM bank */
+    memctl->memc_or1 = CFG_OR1_PRELIM;
+    memctl->memc_br1 = CFG_BR1_PRELIM;
+
+    memctl->memc_mamr = CFG_MAMR_10COL & (~(MAMR_PTAE)); /* no refresh yet */
+
+    udelay(200);
+
+    /* perform SDRAM initializsation sequence */
+
+	memctl->memc_mcr  = 0x80002136 ; /* SDRAM bank 0 */
+    udelay(1);
+
+    memctl->memc_mamr |= MAMR_PTAE;	/* enable refresh */
+
+    udelay (1000);
+
+	/* Check Bank 0 Memory Size
+	 * try 10 column mode
+	 */
+
+	size10 = dram_size (CFG_MAMR_10COL, (ulong *)SDRAM_BASE_PRELIM, SDRAM_MAX_SIZE) ;
+
+    return (size10);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+
+static long int dram_size (long int mamr_value, long int *base, long int maxsize)
+{
+    volatile immap_t     *immap  = (immap_t *)CFG_IMMR;
+    volatile memctl8xx_t *memctl = &immap->im_memctl;
+    volatile long int	 *addr;
+    ulong		  cnt, val;
+    ulong		  save[32];	/* to make test non-destructive */
+    unsigned char	  i = 0;
+
+    memctl->memc_mamr = mamr_value;
+
+    for (cnt = maxsize/sizeof(long); cnt > 0; cnt >>= 1) {
+	addr = base + cnt;	/* pointer arith! */
+
+	save[i++] = *addr;
+	*addr = ~cnt;
+    }
+
+    /* write 0 to base address */
+    addr = base;
+    save[i] = *addr;
+    *addr = 0;
+
+    /* check at base address */
+    if ((val = *addr) != 0) {
+	*addr = save[i];
+	return (0);
+    }
+
+    for (cnt = 1; cnt <= maxsize/sizeof(long); cnt <<= 1) {
+	addr = base + cnt;	/* pointer arith! */
+
+	val = *addr;
+	*addr = save[--i];
+
+	if (val != (~cnt)) {
+	    return (cnt * sizeof(long));
+	}
+    }
+    return (maxsize);
+}
diff --git a/board/rmu/u-boot.lds b/board/rmu/u-boot.lds
new file mode 100644
index 0000000000..c79a5a0ffa
--- /dev/null
+++ b/board/rmu/u-boot.lds
@@ -0,0 +1,134 @@
+/*
+ * (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
+ */
+
+OUTPUT_ARCH(powerpc)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
+/* Do we need any of these for elf?
+   __DYNAMIC = 0;    */
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = + SIZEOF_HEADERS;
+  .interp : { *(.interp) }
+  .hash          : { *(.hash)		}
+  .dynsym        : { *(.dynsym)		}
+  .dynstr        : { *(.dynstr)		}
+  .rel.text      : { *(.rel.text)		}
+  .rela.text     : { *(.rela.text) 	}
+  .rel.data      : { *(.rel.data)		}
+  .rela.data     : { *(.rela.data) 	}
+  .rel.rodata    : { *(.rel.rodata) 	}
+  .rela.rodata   : { *(.rela.rodata) 	}
+  .rel.got       : { *(.rel.got)		}
+  .rela.got      : { *(.rela.got)		}
+  .rel.ctors     : { *(.rel.ctors)	}
+  .rela.ctors    : { *(.rela.ctors)	}
+  .rel.dtors     : { *(.rel.dtors)	}
+  .rela.dtors    : { *(.rela.dtors)	}
+  .rel.bss       : { *(.rel.bss)		}
+  .rela.bss      : { *(.rela.bss)		}
+  .rel.plt       : { *(.rel.plt)		}
+  .rela.plt      : { *(.rela.plt)		}
+  .init          : { *(.init)	}
+  .plt : { *(.plt) }
+  .text      :
+  {
+    /* WARNING - the following is hand-optimized to fit within	*/
+    /* the sector layout of our flash chips!	XXX FIXME XXX	*/
+
+    cpu/mpc8xx/start.o	(.text)
+    common/dlmalloc.o	(.text)
+    lib_ppc/ppcstring.o	(.text)
+    lib_generic/vsprintf.o	(.text)
+    lib_generic/crc32.o		(.text)
+    lib_generic/zlib.o		(.text)
+/* XXX ?
+    . = env_offset;
+*/
+    common/environment.o(.text)
+
+    *(.text)
+    *(.fixup)
+    *(.got1)
+  }
+  _etext = .;
+  PROVIDE (etext = .);
+  .rodata    :
+  {
+    *(.rodata)
+    *(.rodata1)
+  }
+  .fini      : { *(.fini)    } =0
+  .ctors     : { *(.ctors)   }
+  .dtors     : { *(.dtors)   }
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x00FF) & 0xFFFFFF00;
+  _erotext = .;
+  PROVIDE (erotext = .);
+  .reloc   :
+  {
+    *(.got)
+    _GOT2_TABLE_ = .;
+    *(.got2)
+    _FIXUP_TABLE_ = .;
+    *(.fixup)
+  }
+  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+  __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+  .data    :
+  {
+    *(.data)
+    *(.data1)
+    *(.sdata)
+    *(.sdata2)
+    *(.dynamic)
+    CONSTRUCTORS
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  . = ALIGN(256);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(256);
+  __init_end = .;
+
+  __bss_start = .;
+  .bss       :
+  {
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+  _end = . ;
+  PROVIDE (end = .);
+}
+
diff --git a/board/rmu/u-boot.lds.debug b/board/rmu/u-boot.lds.debug
new file mode 100644
index 0000000000..22138f8aad
--- /dev/null
+++ b/board/rmu/u-boot.lds.debug
@@ -0,0 +1,131 @@
+/*
+ * (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
+ */
+
+OUTPUT_ARCH(powerpc)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
+/* Do we need any of these for elf?
+   __DYNAMIC = 0;    */
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = + SIZEOF_HEADERS;
+  .interp : { *(.interp) }
+  .hash          : { *(.hash)		}
+  .dynsym        : { *(.dynsym)		}
+  .dynstr        : { *(.dynstr)		}
+  .rel.text      : { *(.rel.text)		}
+  .rela.text     : { *(.rela.text) 	}
+  .rel.data      : { *(.rel.data)		}
+  .rela.data     : { *(.rela.data) 	}
+  .rel.rodata    : { *(.rel.rodata) 	}
+  .rela.rodata   : { *(.rela.rodata) 	}
+  .rel.got       : { *(.rel.got)		}
+  .rela.got      : { *(.rela.got)		}
+  .rel.ctors     : { *(.rel.ctors)	}
+  .rela.ctors    : { *(.rela.ctors)	}
+  .rel.dtors     : { *(.rel.dtors)	}
+  .rela.dtors    : { *(.rela.dtors)	}
+  .rel.bss       : { *(.rel.bss)		}
+  .rela.bss      : { *(.rela.bss)		}
+  .rel.plt       : { *(.rel.plt)		}
+  .rela.plt      : { *(.rela.plt)		}
+  .init          : { *(.init)	}
+  .plt : { *(.plt) }
+  .text      :
+  {
+    /* WARNING - the following is hand-optimized to fit within	*/
+    /* the sector layout of our flash chips!	XXX FIXME XXX	*/
+
+    cpu/mpc8xx/start.o	(.text)
+    common/dlmalloc.o	(.text)
+    lib_generic/vsprintf.o	(.text)
+    lib_generic/crc32.o		(.text)
+
+    . = env_offset;
+    common/environment.o(.text)
+
+    *(.text)
+    *(.fixup)
+    *(.got1)
+  }
+  _etext = .;
+  PROVIDE (etext = .);
+  .rodata    :
+  {
+    *(.rodata)
+    *(.rodata1)
+  }
+  .fini      : { *(.fini)    } =0
+  .ctors     : { *(.ctors)   }
+  .dtors     : { *(.dtors)   }
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x0FFF) & 0xFFFFF000;
+  _erotext = .;
+  PROVIDE (erotext = .);
+  .reloc   :
+  {
+    *(.got)
+    _GOT2_TABLE_ = .;
+    *(.got2)
+    _FIXUP_TABLE_ = .;
+    *(.fixup)
+  }
+  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+  __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+  .data    :
+  {
+    *(.data)
+    *(.data1)
+    *(.sdata)
+    *(.sdata2)
+    *(.dynamic)
+    CONSTRUCTORS
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  . = ALIGN(4096);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(4096);
+  __init_end = .;
+
+  __bss_start = .;
+  .bss       :
+  {
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+  _end = . ;
+  PROVIDE (end = .);
+}
+
diff --git a/board/tqm8xx/flash.c b/board/tqm8xx/flash.c
index 6b4ea7d227..98bea0e005 100644
--- a/board/tqm8xx/flash.c
+++ b/board/tqm8xx/flash.c
@@ -21,6 +21,8 @@
  * MA 02111-1307 USA
  */
 
+/* #define DEBUG */
+
 #include <common.h>
 #include <mpc8xx.h>
 
@@ -53,8 +55,12 @@ unsigned long flash_init (void)
 
 	/* Static FLASH Bank configuration here - FIXME XXX */
 
+	debug ("\n## Get flash bank 1 size @ 0x%08x\n",FLASH_BASE0_PRELIM);
+
 	size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
 
+	debug ("## Get flash bank 2 size @ 0x%08x\n",FLASH_BASE1_PRELIM);
+
 	if (flash_info[0].flash_id == FLASH_UNKNOWN) {
 		printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
 			size_b0, size_b0<<20);
@@ -62,6 +68,8 @@ unsigned long flash_init (void)
 
 	size_b1 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]);
 
+	debug ("## Prelim. Flash bank sizes: %08lx + 0x%08lx\n",size_b0,size_b1);
+
 	if (size_b1 > size_b0) {
 		printf ("## ERROR: "
 			"Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n",
@@ -77,10 +85,19 @@ unsigned long flash_init (void)
 		return (0);
 	}
 
+	debug  ("## Before remap: "
+		"BR0: 0x%08x    OR0: 0x%08x    "
+		"BR1: 0x%08x    OR1: 0x%08x\n",
+		memctl->memc_br0, memctl->memc_or0,
+		memctl->memc_br1, memctl->memc_or1);
+
 	/* Remap FLASH according to real size */
 	memctl->memc_or0 = CFG_OR_TIMING_FLASH | (-size_b0 & OR_AM_MSK);
 	memctl->memc_br0 = (CFG_FLASH_BASE & BR_BA_MSK) | BR_MS_GPCM | BR_V;
 
+	debug ("## BR0: 0x%08x    OR0: 0x%08x\n",
+		memctl->memc_br0, memctl->memc_or0);
+
 	/* Re-do sizing to get full correct info */
 	size_b0 = flash_get_size((vu_long *)CFG_FLASH_BASE, &flash_info[0]);
 
@@ -105,6 +122,9 @@ unsigned long flash_init (void)
 		memctl->memc_br1 = ((CFG_FLASH_BASE + size_b0) & BR_BA_MSK) |
 				    BR_MS_GPCM | BR_V;
 
+		debug ("## BR1: 0x%08x    OR1: 0x%08x\n",
+			memctl->memc_br1, memctl->memc_or1);
+
 		/* Re-do sizing to get full correct info */
 		size_b1 = flash_get_size((vu_long *)(CFG_FLASH_BASE + size_b0),
 					  &flash_info[1]);
@@ -129,8 +149,14 @@ unsigned long flash_init (void)
 
 		flash_info[1].flash_id = FLASH_UNKNOWN;
 		flash_info[1].sector_count = -1;
+		flash_info[1].size = 0;
+
+		debug ("## DISABLE BR1: 0x%08x    OR1: 0x%08x\n",
+			memctl->memc_br1, memctl->memc_or1);
 	}
 
+	debug ("## Final Flash bank sizes: %08lx + 0x%08lx\n",size_b0,size_b1);
+
 	flash_info[0].size = size_b0;
 	flash_info[1].size = size_b1;
 
@@ -215,6 +241,8 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 
 	value = addr[0];
 
+	debug ("Manuf. ID @ 0x%08lx: 0x%08lx\n", (ulong)addr, value);
+
 	switch (value) {
 	case AMD_MANUFACT:
 		info->flash_id = FLASH_MAN_AMD;
@@ -231,6 +259,8 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 
 	value = addr[1];			/* device ID		*/
 
+	debug ("Device ID @ 0x%08lx: 0x%08lx\n", (ulong)(&addr[1]), value);
+
 	switch (value) {
 	case AMD_ID_LV400T:
 		info->flash_id += FLASH_AM400T;
@@ -278,6 +308,12 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 		info->sector_count = 71;
 		info->size = 0x00800000;
 		break;				/* => 8 MB		*/
+	case AMD_ID_DL640:
+debug ("## oops - same ID used for AM29LV128ML/H mirror bit flash ???\n");
+		info->flash_id += FLASH_AMDL640;
+		info->sector_count = 142;
+		info->size = 0x00800000;
+		break;
 	default:
 		info->flash_id = FLASH_UNKNOWN;
 		return (0);			/* => no or unknown flash */
@@ -368,6 +404,8 @@ int	flash_erase (flash_info_t *info, int s_first, int s_last)
 	int flag, prot, sect, l_sect;
 	ulong start, now, last;
 
+	debug ("flash_erase: first: %d last: %d\n", s_first, s_last);
+
 	if ((s_first < 0) || (s_first > s_last)) {
 		if (info->flash_id == FLASH_UNKNOWN) {
 			printf ("- missing\n");
diff --git a/common/cmd_net.c b/common/cmd_net.c
index a1ff2ba9a6..e8bf0ae9f2 100644
--- a/common/cmd_net.c
+++ b/common/cmd_net.c
@@ -95,6 +95,10 @@ static void netboot_update_env(void)
 	ip_to_string (NetOurDNSIP, tmp);
 	setenv("dnsip", tmp);
     }
+
+    if (NetOurNISDomain[0])
+	setenv("domain", NetOurNISDomain);
+
 }
 static int
 netboot_common (int proto, cmd_tbl_t *cmdtp, int argc, char *argv[])
@@ -165,4 +169,27 @@ netboot_common (int proto, cmd_tbl_t *cmdtp, int argc, char *argv[])
 	return rcode;
 }
 
+#if (CONFIG_COMMANDS & CFG_CMD_PING)
+int do_ping (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	if (argc < 2)
+		return -1;
+
+	NetPingIP = string_to_ip(argv[1]);
+	if (NetPingIP == 0) {
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return -1;
+	}
+
+	if (NetLoop(PING) < 0) {
+		printf("ping failed; host %s is not alive\n", argv[1]);
+		return 1;
+	}
+
+	printf("host %s is alive\n", argv[1]);
+
+	return 0;
+}
+#endif	/* CFG_CMD_PING */
+
 #endif	/* CFG_CMD_NET */
diff --git a/common/command.c b/common/command.c
index 9e631f1c5d..d52ddf1c8f 100644
--- a/common/command.c
+++ b/common/command.c
@@ -316,6 +316,7 @@ cmd_tbl_t cmd_tbl[] = {
 	CMD_TBL_NANDBOOT
 	CMD_TBL_NEXT
 	CMD_TBL_NM
+	CMD_TBL_PING
 	CMD_TBL_PORTIO_OUT
 	CMD_TBL_PCI
 	CMD_TBL_PRINTENV
diff --git a/include/cmd_confdefs.h b/include/cmd_confdefs.h
index 18ce6d8eef..7ab553d317 100644
--- a/include/cmd_confdefs.h
+++ b/include/cmd_confdefs.h
@@ -81,6 +81,7 @@
 #define CFG_CMD_NAND	0x0000800000000000	/* NAND support        		*/
 #define CFG_CMD_BMP	0x0001000000000000	/* BMP support			*/
 #define CFG_CMD_PORTIO	0x0002000000000000	/* Port I/O		        */
+#define CFG_CMD_PING	0x0004000000000000	/* ping support			*/
 
 #define CFG_CMD_ALL	0xFFFFFFFFFFFFFFFF	/* ALL commands			*/
 
@@ -113,6 +114,7 @@
 			CFG_CMD_NAND	| \
 			CFG_CMD_PCI	| \
 			CFG_CMD_PCMCIA	| \
+			CFG_CMD_PING	| \
 			CFG_CMD_REGINFO | \
 			CFG_CMD_SAVES	| \
 			CFG_CMD_SCSI	| \
diff --git a/include/cmd_net.h b/include/cmd_net.h
index e9ca5c5bc8..842cb3e154 100644
--- a/include/cmd_net.h
+++ b/include/cmd_net.h
@@ -64,11 +64,24 @@ int do_dhcp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 #define CMD_TBL_DHCP
 #endif	/* CFG_CMD_DHCP */
 
+#if (CONFIG_COMMANDS & CFG_CMD_PING)
+#define	CMD_TBL_PING	MK_CMD_TBL_ENTRY(					\
+	"ping",		4,	2,	1,	do_ping,			\
+	"ping    - check if host is reachable\n",				\
+	"host\n" 					 			\
+),
+
+int do_ping (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+#else
+#define CMD_TBL_PING
+#endif	/* CFG_CMD_PING */
+
 #else
 #define CMD_TBL_BOOTP
 #define CMD_TBL_TFTPB
 #define CMD_TBL_RARPB
 #define CMD_TBL_DHCP
+#define CMD_TBL_PING
 #endif	/* CFG_CMD_NET */
 
 #endif
diff --git a/include/commproc.h b/include/commproc.h
index d6cf9baadc..2d9ab5cdb3 100644
--- a/include/commproc.h
+++ b/include/commproc.h
@@ -1254,7 +1254,11 @@ typedef struct scc_enet {
 #define PA_ENET_TXD	((ushort)0x0008)
 #define PA_ENET_TCLK	((ushort)0x0200)
 #define PA_ENET_RCLK	((ushort)0x0800)
+#if defined(CONFIG_RMU)
+#define PC_ENET_TENA	((uint)0x00000002)	/* PC14 */
+#else
 #define PB_ENET_TENA	((uint)0x00002000)
+#endif
 #define PC_ENET_CLSN	((ushort)0x0040)
 #define PC_ENET_RENA	((ushort)0x0080)
 
diff --git a/include/configs/TQM862L.h b/include/configs/TQM862L.h
index 653d0c79ae..1d0aea1fec 100644
--- a/include/configs/TQM862L.h
+++ b/include/configs/TQM862L.h
@@ -251,14 +251,15 @@
  * Reset PLL lock status sticky bit, timer expired status bit and timer
  * interrupt status bit
  *
- * If this is a 80 MHz CPU, set PLL multiplication factor to 5 (5*16=80)!
+ * If this is a 80 MHz or 100 MHz CPU,
+ * set PLL multiplication factor to 5 (5 * 16 = 80, 5 * 20 = 100)
  */
-#ifdef	CONFIG_80MHz	/* for 80 MHz, we use a 16 MHz clock * 5 */
+#if defined(CONFIG_80MHz) || defined(CONFIG_100MHz)
 #define CFG_PLPRCR							\
 		( (5-1)<<PLPRCR_MF_SHIFT | PLPRCR_TEXPS | PLPRCR_TMIST )
 #else			/* up to 50 MHz we use a 1:1 clock */
 #define CFG_PLPRCR	(PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
-#endif	/* CONFIG_80MHz */
+#endif	/* CONFIG_80MHz | CONFIG_100MHz */
 
 /*-----------------------------------------------------------------------
  * SCCR - System Clock and reset Control Register		15-27
@@ -267,7 +268,7 @@
  * power management and some other internal clocks
  */
 #define SCCR_MASK	SCCR_EBDF11
-#ifdef	CONFIG_80MHz	/* for 80 MHz, we use a 16 MHz clock * 5 */
+#if defined(CONFIG_80MHz) || defined(CONFIG_100MHz) /* use 16/20 MHz * 5 */
 #define CFG_SCCR	(/* SCCR_TBS  | */ \
 			 SCCR_COM00   | SCCR_DFSYNC00 | SCCR_DFBRG00  | \
 			 SCCR_DFNL000 | SCCR_DFNH000  | SCCR_DFLCD000 | \
@@ -277,7 +278,7 @@
 			 SCCR_COM00   | SCCR_DFSYNC00 | SCCR_DFBRG00  | \
 			 SCCR_DFNL000 | SCCR_DFNH000  | SCCR_DFLCD000 | \
 			 SCCR_DFALCD00)
-#endif	/* CONFIG_80MHz */
+#endif	/* CONFIG_80MHz | CONFIG_100MHz */
 
 /*-----------------------------------------------------------------------
  * PCMCIA stuff
@@ -346,8 +347,15 @@
 /*
  * FLASH timing:
  */
-#if   defined(CONFIG_80MHz)
-/* 80 MHz CPU - 40 MHz bus: ACS = 00, TRLX = 0, CSNT = 1, SCY = 3, EHTR = 1 */
+#if defined(CONFIG_100MHz)
+/* 100 MHz CPU - 50 MHz bus:
+ * 0x...926: 9 = OR_CSNT_SAM + OR_BI; 2 = OR_SCY_2_CLK; 6 = OR_TRLX + OR_EHTR
+ * ACS = 00, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */
+#define CFG_OR_TIMING_FLASH	(OR_ACS_DIV1  | OR_TRLX | OR_CSNT_SAM | \
+				 OR_SCY_2_CLK | OR_EHTR | OR_BI)
+#elif defined(CONFIG_80MHz)
+/* 80 MHz CPU - 40 MHz bus:
+ * ACS = 00, TRLX = 0, CSNT = 1, SCY = 3, EHTR = 1 */
 #define CFG_OR_TIMING_FLASH	(OR_ACS_DIV1  | 0       | OR_CSNT_SAM | \
 				 OR_SCY_3_CLK | OR_EHTR | OR_BI)
 #elif defined(CONFIG_66MHz)
@@ -415,11 +423,14 @@
  * --------------------------------------------
  * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
  *
- * 50 MHz => 50.000.000 / Divider =  98
- * 66 Mhz => 66.000.000 / Divider = 129
- * 80 Mhz => 80.000.000 / Divider = 156
+ *  50 MHz =>  50.000.000 / Divider =  98
+ *  66 Mhz =>  66.000.000 / Divider = 129
+ *  80 Mhz =>  80.000.000 / Divider = 156
+ * 100 Mhz => 100.000.000 / Divider = 195
  */
-#if   defined(CONFIG_80MHz)
+#if   defined(CONFIG_100MHz)
+#define CFG_MAMR_PTA		195
+#elif defined(CONFIG_80MHz)
 #define CFG_MAMR_PTA		156
 #elif defined(CONFIG_66MHz)
 #define CFG_MAMR_PTA		129
diff --git a/include/configs/rmu.h b/include/configs/rmu.h
new file mode 100644
index 0000000000..0a94714f7b
--- /dev/null
+++ b/include/configs/rmu.h
@@ -0,0 +1,379 @@
+/*
+ * (C) Copyright 2003
+ * 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
+ */
+
+/*
+ * board/config.h - configuration options, board specific
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+
+/*
+ * High Level Configuration Options
+ * (easy to change)
+ */
+
+#undef CONFIG_MPC860
+#define CONFIG_MPC850		1	/* This is a MPC850 CPU		*/
+#define CONFIG_RPXLITE		1	/* RMU is the RPXlite clone */
+#define CONFIG_RMU			1
+
+#define	CONFIG_8xx_CONS_SMC1	1	/* Console is on SMC1		*/
+#undef	CONFIG_8xx_CONS_SMC2
+#undef	CONFIG_8xx_CONS_NONE
+#define CONFIG_BAUDRATE		9600	/* console baudrate = 9600bps	*/
+#if 0
+#define CONFIG_BOOTDELAY	-1	/* autoboot disabled		*/
+#else
+#define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds	*/
+#endif
+
+#define	CONFIG_CLOCKS_IN_MHZ	1	/* clocks passsed to Linux in MHz */
+
+#undef	CONFIG_BOOTARGS
+#define CONFIG_BOOTCOMMAND							\
+	"bootp; " 								\
+	"setenv bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) " 	\
+	"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off; " 	\
+	"bootm"
+
+#define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/
+#undef	CFG_LOADS_BAUD_CHANGE		/* don't allow baudrate change	*/
+
+#undef	CONFIG_WATCHDOG			/* watchdog disabled		*/
+
+#define CONFIG_BOOTP_MASK	(CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE)
+
+/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
+#include <cmd_confdefs.h>
+
+/*
+ * Miscellaneous configurable options
+ */
+#define	CFG_LONGHELP			/* undef to save memory		*/
+#define	CFG_PROMPT	"=> "		/* Monitor Command Prompt	*/
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#define	CFG_CBSIZE	1024		/* Console I/O Buffer Size	*/
+#else
+#define	CFG_CBSIZE	256		/* Console I/O Buffer Size	*/
+#endif
+#define	CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
+#define	CFG_MAXARGS	16		/* max number of command args	*/
+#define CFG_BARGSIZE	CFG_CBSIZE	/* Boot Argument Buffer Size	*/
+
+#define CFG_MEMTEST_START	0x0040000	/* memtest works on	*/
+#define CFG_MEMTEST_END		0x00C0000	/* 4 ... 12 MB in DRAM	*/
+
+#define	CFG_LOAD_ADDR		0x100000	/* default load address	*/
+
+#define	CFG_HZ		1000		/* decrementer freq: 1 ms ticks	*/
+
+#define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
+
+/*
+ * Low Level Configuration Settings
+ * (address mappings, register initial values, etc.)
+ * You should know what you are doing if you make changes here.
+ */
+/*-----------------------------------------------------------------------
+ * Internal Memory Mapped Register
+ */
+#define CFG_IMMR		0xFA200000
+
+/*-----------------------------------------------------------------------
+ * Definitions for initial stack pointer and data area (in DPRAM)
+ */
+#define CFG_INIT_RAM_ADDR	CFG_IMMR
+#define	CFG_INIT_RAM_END	0x2F00	/* End of used area in DPRAM	*/
+#define	CFG_GBL_DATA_SIZE	64  /* size in bytes reserved for initial data */
+#define CFG_GBL_DATA_OFFSET	(CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
+#define	CFG_INIT_SP_OFFSET	CFG_GBL_DATA_OFFSET
+
+/*-----------------------------------------------------------------------
+ * Start addresses for the final memory configuration
+ * (Set up by the startup code)
+ * Please note that CFG_SDRAM_BASE _must_ start at 0
+ */
+#define	CFG_SDRAM_BASE		0x00000000
+#define CFG_FLASH_BASE	0xFF800000
+/*%%% #define CFG_FLASH_BASE		0xFFF00000 */
+#if defined(DEBUG) || (CONFIG_COMMANDS & CFG_CMD_IDE)
+#define	CFG_MONITOR_LEN		(256 << 10)	/* Reserve 256 kB for Monitor	*/
+#else
+#define	CFG_MONITOR_LEN		(128 << 10)	/* Reserve 128 kB for Monitor	*/
+#endif
+#define CFG_MONITOR_BASE	0xFFF00000
+/*%%% #define CFG_MONITOR_BASE	CFG_FLASH_BASE */
+#define	CFG_MALLOC_LEN		(128 << 10)	/* Reserve 128 kB for malloc()	*/
+
+/*
+ * For booting Linux, the board info and command line data
+ * have to be in the first 8 MB of memory, since this is
+ * the maximum mapped by the Linux kernel during initialization.
+ */
+#define	CFG_BOOTMAPSZ		(8 << 20)	/* Initial Memory map for Linux	*/
+
+/*-----------------------------------------------------------------------
+ * FLASH organization
+ */
+#define CFG_MAX_FLASH_BANKS	1	/* max number of memory banks		*/
+#define CFG_MAX_FLASH_SECT	35	/* max number of sectors on one chip	*/
+
+#define CFG_FLASH_ERASE_TOUT	120000	/* Timeout for Flash Erase (in ms)	*/
+#define CFG_FLASH_WRITE_TOUT	500	/* Timeout for Flash Write (in ms)	*/
+
+#define	CFG_ENV_IS_IN_FLASH	1
+#define	CFG_ENV_OFFSET	    0x00740000	/*   Offset   of Environment Sector	*/
+#define	CFG_ENV_SIZE		0x40000	/* Total Size of Environment Sector	*/
+#define CFG_ENV_ADDR		(CFG_FLASH_BASE + CFG_ENV_OFFSET)
+
+/* Address and size of Redundant Environment Sector	*/
+#define CFG_ENV_OFFSET_REDUND	(CFG_ENV_OFFSET+CFG_ENV_SIZE)
+#define CFG_ENV_SIZE_REDUND	(CFG_ENV_SIZE)
+
+/*-----------------------------------------------------------------------
+ * Cache Configuration
+ */
+#define CFG_CACHELINE_SIZE	16	/* For all MPC8xx CPUs			*/
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#define CFG_CACHELINE_SHIFT	4	/* log base 2 of the above value	*/
+#endif
+
+/*-----------------------------------------------------------------------
+ * SYPCR - System Protection Control				11-9
+ * SYPCR can only be written once after reset!
+ *-----------------------------------------------------------------------
+ * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
+ */
+#if defined(CONFIG_WATCHDOG)
+#define CFG_SYPCR	(SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
+			 SYPCR_SWE  | SYPCR_SWRI| SYPCR_SWP)
+#else
+#define CFG_SYPCR	(SYPCR_SWTC | 0x00000600 | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
+#endif
+
+/*-----------------------------------------------------------------------
+ * SIUMCR - SIU Module Configuration				11-6
+ *-----------------------------------------------------------------------
+ * PCMCIA config., multi-function pin tri-state
+ */
+#define CFG_SIUMCR	(SIUMCR_MLRC10)
+
+/*-----------------------------------------------------------------------
+ * TBSCR - Time Base Status and Control				11-26
+ *-----------------------------------------------------------------------
+ * Clear Reference Interrupt Status, Timebase freezing enabled
+ */
+#define CFG_TBSCR	(TBSCR_REFA | TBSCR_REFB | TBSCR_TBF | TBSCR_TBE)
+
+/*-----------------------------------------------------------------------
+ * RTCSC - Real-Time Clock Status and Control Register		11-27
+ *-----------------------------------------------------------------------
+ */
+/*%%%#define CFG_RTCSC	(RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE) */
+#define CFG_RTCSC	(RTCSC_SEC | RTCSC_RTE)
+
+/*-----------------------------------------------------------------------
+ * PISCR - Periodic Interrupt Status and Control		11-31
+ *-----------------------------------------------------------------------
+ * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
+ */
+#define CFG_PISCR (PISCR_PS | PISCR_PITF)
+
+/*-----------------------------------------------------------------------
+ * PLPRCR - PLL, Low-Power, and Reset Control Register		15-30
+ *-----------------------------------------------------------------------
+ * Reset PLL lock status sticky bit, timer expired status bit and timer
+ * interrupt status bit
+ *
+ * If this is a 80 MHz CPU, set PLL multiplication factor to 5 (5*16=80)!
+ */
+/* up to 50 MHz we use a 1:1 clock */
+#define CFG_PLPRCR	( (5 << PLPRCR_MF_SHIFT) | PLPRCR_TEXPS )
+
+/*-----------------------------------------------------------------------
+ * SCCR - System Clock and reset Control Register		15-27
+ *-----------------------------------------------------------------------
+ * Set clock output, timebase and RTC source and divider,
+ * power management and some other internal clocks
+ */
+#define SCCR_MASK	SCCR_EBDF00
+/* up to 50 MHz we use a 1:1 clock */
+#define CFG_SCCR	(SCCR_COM00 | SCCR_TBS)
+
+/*-----------------------------------------------------------------------
+ * PCMCIA stuff
+ *-----------------------------------------------------------------------
+ *
+ */
+#define CFG_PCMCIA_MEM_ADDR	(0xE0000000)
+#define CFG_PCMCIA_MEM_SIZE	( 64 << 20 )
+#define CFG_PCMCIA_DMA_ADDR	(0xE4000000)
+#define CFG_PCMCIA_DMA_SIZE	( 64 << 20 )
+#define CFG_PCMCIA_ATTRB_ADDR	(0xE8000000)
+#define CFG_PCMCIA_ATTRB_SIZE	( 64 << 20 )
+#define CFG_PCMCIA_IO_ADDR	(0xEC000000)
+#define CFG_PCMCIA_IO_SIZE	( 64 << 20 )
+
+/*-----------------------------------------------------------------------
+ * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
+ *-----------------------------------------------------------------------
+ */
+
+#define	CONFIG_IDE_8xx_PCCARD	1	/* Use IDE with PC Card	Adapter	*/
+
+#undef	CONFIG_IDE_8xx_DIRECT		/* Direct IDE    not supported	*/
+#undef	CONFIG_IDE_LED			/* LED   for ide not supported	*/
+#undef	CONFIG_IDE_RESET		/* reset for ide not supported	*/
+
+#define CFG_IDE_MAXBUS		1	/* max. 1 IDE bus		*/
+#define CFG_IDE_MAXDEVICE	1	/* max. 1 drive per IDE bus	*/
+
+#define CFG_ATA_IDE0_OFFSET	0x0000
+
+#define CFG_ATA_BASE_ADDR	CFG_PCMCIA_MEM_ADDR
+
+/* Offset for data I/O			*/
+#define CFG_ATA_DATA_OFFSET	(CFG_PCMCIA_MEM_SIZE + 0x320)
+
+/* Offset for normal register accesses	*/
+#define CFG_ATA_REG_OFFSET	(2 * CFG_PCMCIA_MEM_SIZE + 0x320)
+
+/* Offset for alternate registers	*/
+#define CFG_ATA_ALT_OFFSET	0x0100
+
+/*-----------------------------------------------------------------------
+ *
+ *-----------------------------------------------------------------------
+ *
+ */
+/*#define	CFG_DER	0x2002000F*/
+#define CFG_DER	0
+
+/*
+ * Init Memory Controller:
+ *
+ * BR0 and OR0 (FLASH)
+ */
+
+#define FLASH_BASE_PRELIM	0xFE000000	/* FLASH base */
+#define CFG_PRELIM_OR_AM	0xFE000000	/* OR addr mask */
+
+/* FLASH timing: ACS = 0, TRLX = 0, CSNT = 0, SCY = 4, ETHR = 0, BIH = 1 */
+#define CFG_OR_TIMING_FLASH (OR_SCY_4_CLK | OR_BI)
+
+#define CFG_OR0_PRELIM	(CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
+#define CFG_BR0_PRELIM	((FLASH_BASE_PRELIM & BR_BA_MSK) | BR_V)
+
+/*
+ * BR1 and OR1 (SDRAM)
+ *
+ */
+#define SDRAM_BASE_PRELIM	0x00000000	/* SDRAM base	*/
+#define	SDRAM_MAX_SIZE		0x01000000	/* max 16 MB */
+
+/* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care)	*/
+#define CFG_OR_TIMING_SDRAM	0x00000E00
+
+#define CFG_OR1_PRELIM	(CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM )
+#define CFG_BR1_PRELIM	((SDRAM_BASE_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
+
+/* RPXLITE mem setting */
+#define	CFG_BR3_PRELIM	0xFA400001		/* BCSR */
+#define CFG_OR3_PRELIM	0xFFFF8910
+#define	CFG_BR4_PRELIM	0xFA000401		/* NVRAM&SRAM */
+#define CFG_OR4_PRELIM	0xFFFE0970
+
+/*
+ * Memory Periodic Timer Prescaler
+ */
+
+/* periodic timer for refresh */
+#define CFG_MAMR_PTA	20
+
+/*
+ * Refresh clock Prescalar
+ */
+#define CFG_MPTPR	MPTPR_PTP_DIV2
+
+/*
+ * MAMR settings for SDRAM
+ */
+
+/* 10 column SDRAM */
+#define CFG_MAMR_10COL	((CFG_MAMR_PTA << MAMR_PTA_SHIFT)  | MAMR_PTAE	    |	\
+			 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 |	\
+			 MAMR_RLFA_16X | MAMR_WLFA_16X | MAMR_TLFA_16X)
+
+/*
+ * Internal Definitions
+ *
+ * Boot Flags
+ */
+#define	BOOTFLAG_COLD	0x01	/* Normal Power-On: Boot from FLASH	*/
+#define BOOTFLAG_WARM	0x02	/* Software reboot			*/
+
+/*
+ * BCSRx
+ *
+ * Board Status and Control Registers
+ *
+ */
+
+#define BCSR0 0xFA400000
+#define BCSR1 0xFA400001
+#define BCSR2 0xFA400002
+#define BCSR3 0xFA400003
+
+#define BCSR0_ENMONXCVR	0x01	/* Monitor XVCR Control */
+#define BCSR0_ENNVRAM	0x02 	/* CS4# Control */
+#define BCSR0_LED5	0x04	/* LED5 control 0='on' 1='off' */
+#define BCSR0_LED4	0x08	/* LED4 control 0='on' 1='off' */
+#define BCSR0_FULLDPLX	0x10	/* Ethernet XCVR Control */
+#define BCSR0_COLTEST	0x20
+#define BCSR0_ETHLPBK	0x40
+#define BCSR0_ETHEN	0x80
+
+#define BCSR1_PCVCTL7	0x01	/* PC Slot B Control */
+#define BCSR1_PCVCTL6	0x02
+#define BCSR1_PCVCTL5	0x04
+#define BCSR1_PCVCTL4	0x08
+#define BCSR1_IPB5SEL	0x10
+
+#define BCSR2_ENPA5HDR	0x08	/* USB Control */
+#define BCSR2_ENUSBCLK	0x10
+#define BCSR2_USBPWREN	0x20
+#define BCSR2_USBSPD	0x40
+#define BCSR2_USBSUSP	0x80
+
+#define BCSR3_BWRTC	0x01	/* Real Time Clock Battery */
+#define BCSR3_BWNVR	0x02	/* NVRAM Battery */
+#define BCSR3_RDY_BSY	0x04	/* Flash Operation */
+#define BCSR3_RPXL	0x08	/* Reserved (reads back '1') */
+#define BCSR3_D27	0x10	/* Dip Switch settings */
+#define BCSR3_D26	0x20
+#define BCSR3_D25	0x40
+#define BCSR3_D24	0x80
+
+#endif	/* __CONFIG_H */
diff --git a/include/configs/sc520_spunk.h b/include/configs/sc520_spunk.h
index 2b5a54d9a0..0a28805fda 100644
--- a/include/configs/sc520_spunk.h
+++ b/include/configs/sc520_spunk.h
@@ -206,7 +206,7 @@
 
 #define	CFG_FIRST_PCI_IRQ   9
 #define	CFG_SECOND_PCI_IRQ  10
-#define CFG_THIRD_PCI_IRQ   11
+#define	CFG_THIRD_PCI_IRQ   11
 #define	CFG_FORTH_PCI_IRQ   12
 
 
diff --git a/include/net.h b/include/net.h
index e4f7cbdd22..689a90f6ee 100644
--- a/include/net.h
+++ b/include/net.h
@@ -200,7 +200,9 @@ typedef struct
 /*
  * ICMP stuff (just enough to handle (host) redirect messages)
  */
+#define ICMP_ECHO_REPLY		0	/* Echo reply 			*/
 #define ICMP_REDIRECT		5	/* Redirect (change route)	*/
+#define ICMP_ECHO_REQUEST	8	/* Echo request			*/
 
 /* Codes for REDIRECT. */
 #define ICMP_REDIR_NET		0	/* Redirect Net			*/
@@ -292,11 +294,15 @@ extern int		NetState;		/* Network loop state		*/
 extern int		NetRestartWrap;		/* Tried all network devices	*/
 #endif
 
-typedef enum { BOOTP, RARP, ARP, TFTP, DHCP } proto_t;
+typedef enum { BOOTP, RARP, ARP, TFTP, DHCP, PING, DNS } proto_t;
 
 /* from net/net.c */
 extern char	BootFile[128];			/* Boot File name		*/
 
+#if (CONFIG_COMMANDS & CFG_CMD_PING)
+extern IPaddr_t	NetPingIP;			/* the ip address to ping 		*/
+#endif
+
 /* Initialize the network adapter */
 extern int	NetLoop(proto_t);
 
@@ -323,6 +329,9 @@ extern void	NetSetTimeout(int, thand_f *);	/* Set timeout handler		*/
 /* Transmit "NetTxPacket" */
 extern void	NetSendPacket(volatile uchar *, int);
 
+/* Transmit UDP packet, performing ARP request if needed */
+extern int	NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, int len);
+
 /* Processes a received packet */
 extern void	NetReceive(volatile uchar *, int);
 
@@ -373,6 +382,9 @@ static inline void NetCopyLong(ulong *to, ulong *from)
 /* Convert an IP address to a string */
 extern void	ip_to_string (IPaddr_t x, char *s);
 
+/* Convert a string to ip address */
+extern IPaddr_t string_to_ip(char *s);
+
 /* read an IP address from a environment variable */
 extern IPaddr_t getenv_IPaddr (char *);
 
diff --git a/net/Makefile b/net/Makefile
index db0a69fae0..b899d7b2f2 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -27,7 +27,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= libnet.a
 
-OBJS	= net.o tftp.o bootp.o rarp.o arp.o eth.o
+OBJS	= net.o tftp.o bootp.o rarp.o eth.o
 all:	$(LIB)
 
 $(LIB):	$(START) $(OBJS)
diff --git a/net/arp.c b/net/arp.c
deleted file mode 100644
index c09dc1aac8..0000000000
--- a/net/arp.c
+++ /dev/null
@@ -1,120 +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
- */
-
-#include <common.h>
-#include <command.h>
-#include <net.h>
-#include "bootp.h"
-#include "tftp.h"
-#include "arp.h"
-
-#if (CONFIG_COMMANDS & CFG_CMD_NET)
-
-#define TIMEOUT		5		/* Seconds before trying ARP again */
-#ifndef	CONFIG_NET_RETRY_COUNT
-# define TIMEOUT_COUNT	5		/* # of timeouts before giving up  */
-#else
-# define TIMEOUT_COUNT  (CONFIG_NET_RETRY_COUNT)
-#endif
-
-static void ArpHandler(uchar *pkt, unsigned dest, unsigned src, unsigned len);
-static void ArpTimeout(void);
-
-int	ArpTry = 0;
-
-/*
- *	Handle a ARP received packet.
- */
-static void
-ArpHandler(uchar *pkt, unsigned dest, unsigned src, unsigned len)
-{
-	/* Check if the frame is really an ARP reply */
-	if (memcmp (NetServerEther, NetBcastAddr, 6) != 0) {
-#ifdef	DEBUG
-		printf("Got good ARP - start TFTP\n");
-#endif
-		TftpStart ();
-	}
-}
-
-
-/*
- *	Timeout on ARP request.
- */
-static void
-ArpTimeout(void)
-{
-	if (ArpTry >= TIMEOUT_COUNT) {
-		puts ("\nRetry count exceeded; starting again\n");
-		NetStartAgain ();
-	} else {
-		NetSetTimeout (TIMEOUT * CFG_HZ, ArpTimeout);
-		ArpRequest ();
-	}
-}
-
-
-void
-ArpRequest (void)
-{
-	int i;
-	volatile uchar *pkt;
-	ARP_t *	arp;
-
-	printf("ARP broadcast %d\n", ++ArpTry);
-	pkt = NetTxPacket;
-
-	NetSetEther(pkt, NetBcastAddr, PROT_ARP);
-	pkt += ETHER_HDR_SIZE;
-
-	arp = (ARP_t *)pkt;
-
-	arp->ar_hrd = htons(ARP_ETHER);
-	arp->ar_pro = htons(PROT_IP);
-	arp->ar_hln = 6;
-	arp->ar_pln = 4;
-	arp->ar_op  = htons(ARPOP_REQUEST);
-
-	memcpy (&arp->ar_data[0], NetOurEther, 6);	/* source ET addr	*/
-	NetWriteIP((uchar*)&arp->ar_data[6], NetOurIP);	/* source IP addr	*/
-	for (i=10; i<16; ++i) {
-		arp->ar_data[i] = 0;			/* dest ET addr = 0	*/
-	}
-
-	if((NetServerIP & NetOurSubnetMask) != (NetOurIP & NetOurSubnetMask)) {
-	    if (NetOurGatewayIP == 0) {
-		puts ("## Warning: gatewayip needed but not set\n");
-	    }
-	    NetWriteIP((uchar*)&arp->ar_data[16], NetOurGatewayIP);
-	} else {
-	    NetWriteIP((uchar*)&arp->ar_data[16], NetServerIP);
-	}
-
-
-	NetSendPacket(NetTxPacket, ETHER_HDR_SIZE + ARP_HDR_SIZE);
-
-	NetSetTimeout(TIMEOUT * CFG_HZ, ArpTimeout);
-	NetSetHandler(ArpHandler);
-}
-
-#endif /* CFG_CMD_NET */
diff --git a/net/arp.h b/net/arp.h
deleted file mode 100644
index b83533495e..0000000000
--- a/net/arp.h
+++ /dev/null
@@ -1,40 +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
- */
-
-
-#ifndef __ARP_H__
-#define __ARP_H__
-
-/**********************************************************************/
-/*
- *	Global functions and variables.
- */
-
-extern int ArpTry;
-
-extern void ArpRequest (void);	/* Send a ARP request */
-
-/**********************************************************************/
-
-#endif /* __ARP_H__ */
-
diff --git a/net/bootp.c b/net/bootp.c
index 4be0ad586a..8e0f332466 100644
--- a/net/bootp.c
+++ b/net/bootp.c
@@ -24,7 +24,6 @@
 #include <net.h>
 #include "bootp.h"
 #include "tftp.h"
-#include "arp.h"
 #ifdef CONFIG_STATUS_LED
 #include <status_led.h>
 #endif
@@ -336,10 +335,7 @@ BootpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len)
 		return;
 	}
 
-	/* Send ARP request to get TFTP server ethernet address.
-	 * This automagically starts TFTP, too.
-	 */
-	ArpRequest();
+	TftpStart();
 }
 #endif	/* !CFG_CMD_DHCP */
 
@@ -866,10 +862,7 @@ DhcpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len)
 				NetState = NETLOOP_SUCCESS;
 				return;
 			}
-			/* Send ARP request to get TFTP server ethernet address.
-			 * This automagically starts TFTP, too.
-			 */
-			ArpRequest();
+			TftpStart();
 			return;
 		}
 		break;
diff --git a/net/net.c b/net/net.c
index b9cb67b25c..4758595d1c 100644
--- a/net/net.c
+++ b/net/net.c
@@ -65,10 +65,16 @@
 #include "bootp.h"
 #include "tftp.h"
 #include "rarp.h"
-#include "arp.h"
 
 #if (CONFIG_COMMANDS & CFG_CMD_NET)
 
+#define ARP_TIMEOUT		5		/* Seconds before trying ARP again */
+#ifndef	CONFIG_NET_RETRY_COUNT
+# define ARP_TIMEOUT_COUNT	5		/* # of timeouts before giving up  */
+#else
+# define ARP_TIMEOUT_COUNT  (CONFIG_NET_RETRY_COUNT)
+#endif
+
 #if 0
 #define ET_DEBUG
 #endif
@@ -88,7 +94,7 @@ ushort		NetBootFileSize=0;		/* Our bootfile size in blocks	*/
 ulong		NetBootFileXferSize;	/* The actual transferred size of the bootfile (in bytes) */
 uchar		NetOurEther[6];		/* Our ethernet address			*/
 uchar		NetServerEther[6] =	/* Boot server enet address		*/
-			{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+			{ 0, 0, 0, 0, 0, 0 };
 IPaddr_t	NetOurIP;		/* Our IP addr (0 = unknown)		*/
 IPaddr_t	NetServerIP;		/* Our IP addr (0 = unknown)		*/
 volatile uchar *NetRxPkt;		/* Current receive packet		*/
@@ -96,6 +102,8 @@ int		NetRxPktLen;		/* Current rx packet length		*/
 unsigned	NetIPID;		/* IP packet ID				*/
 uchar		NetBcastAddr[6] =	/* Ethernet bcast address		*/
 			{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+uchar		NetEtherNullAddr[6] =
+			{ 0, 0, 0, 0, 0, 0 };
 int		NetState;		/* Network loop state			*/
 #ifdef CONFIG_NET_MULTI
 int		NetRestartWrap = 0;	/* Tried all network devices		*/
@@ -105,6 +113,12 @@ static int	NetDevExists = 0;	/* At least one device configured	*/
 
 char		BootFile[128];		/* Boot File name			*/
 
+#if (CONFIG_COMMANDS & CFG_CMD_PING)
+IPaddr_t	NetPingIP;		/* the ip address to ping 		*/
+
+static void PingStart(void);
+#endif
+
 volatile uchar	PktBuf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN];
 
 volatile uchar *NetRxPackets[PKTBUFSRX]; /* Receive packets			*/
@@ -116,6 +130,81 @@ volatile uchar *NetTxPacket = 0;	/* THE transmit packet			*/
 
 static int net_check_prereq (proto_t protocol);
 
+/**********************************************************************/
+
+IPaddr_t	NetArpWaitPacketIP;
+IPaddr_t	NetArpWaitReplyIP;
+uchar	       *NetArpWaitPacketMAC;	/* MAC address of waiting packet's destination	*/
+uchar          *NetArpWaitTxPacket;	/* THE transmit packet			*/
+int		NetArpWaitTxPacketSize;
+uchar 		NetArpWaitPacketBuf[PKTSIZE_ALIGN + PKTALIGN];
+ulong		NetArpWaitTimerStart;
+int		NetArpWaitTry;
+
+void ArpRequest(void)
+{
+	int i;
+	volatile uchar *pkt;
+	ARP_t *	arp;
+
+#ifdef ET_DEBUG
+	printf("ARP broadcast %d\n", NetArpWaitTry);
+#endif
+	pkt = NetTxPacket;
+
+	NetSetEther(pkt, NetBcastAddr, PROT_ARP);
+	pkt += ETHER_HDR_SIZE;
+
+	arp = (ARP_t *)pkt;
+
+	arp->ar_hrd = htons(ARP_ETHER);
+	arp->ar_pro = htons(PROT_IP);
+	arp->ar_hln = 6;
+	arp->ar_pln = 4;
+	arp->ar_op  = htons(ARPOP_REQUEST);
+
+	memcpy (&arp->ar_data[0], NetOurEther, 6);	/* source ET addr	*/
+	NetWriteIP((uchar*)&arp->ar_data[6], NetOurIP);	/* source IP addr	*/
+	for (i=10; i<16; ++i) {
+		arp->ar_data[i] = 0;			/* dest ET addr = 0	*/
+	}
+
+	if((NetArpWaitPacketIP & NetOurSubnetMask) != (NetOurIP & NetOurSubnetMask)) {
+	    if (NetOurGatewayIP == 0) {
+		puts ("## Warning: gatewayip needed but not set\n");
+	    }
+	    NetArpWaitReplyIP = NetOurGatewayIP;
+	} else
+            NetArpWaitReplyIP = NetArpWaitPacketIP;
+
+        NetWriteIP((uchar*)&arp->ar_data[16], NetArpWaitReplyIP);
+	(void) eth_send(NetTxPacket, ETHER_HDR_SIZE + ARP_HDR_SIZE);
+}
+
+void ArpTimeoutCheck(void)
+{
+	ulong t;
+
+	if (!NetArpWaitPacketIP)
+		return;
+
+	t = get_timer(0);
+
+	/* check for arp timeout */
+	if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT * CFG_HZ) {
+		NetArpWaitTry++;
+
+		if (NetArpWaitTry >= ARP_TIMEOUT_COUNT) {
+			puts ("\nARP Retry count exceeded; starting again\n");
+			NetArpWaitTry = 0;
+			NetStartAgain();
+		} else {
+			NetArpWaitTimerStart = t;
+			ArpRequest();
+		}
+	}
+}
+
 /**********************************************************************/
 /*
  *	Main network processing loop.
@@ -133,6 +222,14 @@ NetLoop(proto_t protocol)
 	NetDevExists = 0;
 #endif
 
+	/* XXX problem with bss workaround */
+	NetArpWaitPacketMAC = NULL;
+	NetArpWaitTxPacket = NULL;
+	NetArpWaitPacketIP = 0;
+	NetArpWaitReplyIP = 0;
+	NetArpWaitTxPacket = NULL;
+	NetTxPacket = NULL;
+
 	if (!NetTxPacket) {
 		int	i;
 
@@ -144,6 +241,13 @@ NetLoop(proto_t protocol)
 		for (i = 0; i < PKTBUFSRX; i++) {
 			NetRxPackets[i] = NetTxPacket + (i+1)*PKTSIZE_ALIGN;
 		}
+
+	}
+
+	if (!NetArpWaitTxPacket) {
+		NetArpWaitTxPacket = &NetArpWaitPacketBuf[0] + (PKTALIGN - 1);
+		NetArpWaitTxPacket -= (ulong)NetArpWaitTxPacket % PKTALIGN;
+		NetArpWaitTxPacketSize = 0;
 	}
 
 	eth_halt();
@@ -165,11 +269,27 @@ restart:
 	 */
 
 	switch (protocol) {
+#if (CONFIG_COMMANDS & CFG_CMD_PING)
+	case PING:
+#endif
 	case TFTP:
 		NetCopyIP(&NetOurIP, &bd->bi_ip_addr);
-		NetServerIP	= getenv_IPaddr ("serverip");
 		NetOurGatewayIP = getenv_IPaddr ("gatewayip");
 		NetOurSubnetMask= getenv_IPaddr ("netmask");
+
+		switch (protocol) {
+		case TFTP:
+			NetServerIP = getenv_IPaddr ("serverip");
+			break;
+#if (CONFIG_COMMANDS & CFG_CMD_PING)
+		case PING:
+			/* nothing */
+			break;
+#endif
+		default:
+			break;
+		}
+
 		break;
 	case BOOTP:
 	case RARP:
@@ -202,8 +322,7 @@ restart:
 		switch (protocol) {
 		case TFTP:
 			/* always use ARP to get server ethernet address */
-			ArpTry = 0;
-			ArpRequest ();
+			TftpStart();
 			break;
 
 #if (CONFIG_COMMANDS & CFG_CMD_DHCP)
@@ -224,6 +343,11 @@ restart:
 			RarpTry = 0;
 			RarpRequest ();
 			break;
+#if (CONFIG_COMMANDS & CFG_CMD_PING)
+		case PING:
+			PingStart();
+			break;
+#endif
 		default:
 			break;
 		}
@@ -260,6 +384,7 @@ restart:
 			return (-1);
 		}
 
+		ArpTimeoutCheck();
 
 		/*
 		 *	Check for a timeout, and run the timeout handler
@@ -376,7 +501,138 @@ NetSendPacket(volatile uchar * pkt, int len)
 	(void) eth_send(pkt, len);
 }
 
+int
+NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, int len)
+{
+	/* convert to new style broadcast */
+	if (dest == 0)
+		dest = 0xFFFFFFFF;
+
+	/* if broadcast, make the ether address a broadcast and don't do ARP */
+	if (dest == 0xFFFFFFFF)
+		ether = NetBcastAddr;
+
+	/* if MAC address was not discovered yet, save the packet and do an ARP request */
+	if (memcmp(ether, NetEtherNullAddr, 6) == 0) {
+
+#ifdef ET_DEBUG
+		printf("sending ARP for %08lx\n", dest);
+#endif
+
+		NetArpWaitPacketIP = dest;
+		NetArpWaitPacketMAC = ether;
+		NetSetEther (NetArpWaitTxPacket, NetArpWaitPacketMAC, PROT_IP);
+		NetSetIP (NetArpWaitTxPacket + ETHER_HDR_SIZE, dest, dport, sport, len);
+		memcpy(NetArpWaitTxPacket + ETHER_HDR_SIZE + IP_HDR_SIZE,
+			(uchar *)NetTxPacket + ETHER_HDR_SIZE + IP_HDR_SIZE, len);
+
+		/* size of the waiting packet */
+		NetArpWaitTxPacketSize = ETHER_HDR_SIZE + IP_HDR_SIZE + len;
+
+		/* and do the ARP request */
+		NetArpWaitTry = 1;
+		NetArpWaitTimerStart = get_timer(0);
+		ArpRequest();
+		return 1;	/* waiting */
+	}
+
+#ifdef ET_DEBUG
+	printf("sending UDP to %08lx/%02x:%02x:%02x:%02x:%02x:%02x\n",
+			dest, ether[0], ether[1], ether[2], ether[3], ether[4], ether[5]);
+#endif
+
+	NetSetEther (NetTxPacket, ether, PROT_IP);
+	NetSetIP (NetTxPacket + ETHER_HDR_SIZE, dest, dport, sport, len);
+	(void) eth_send(NetTxPacket, ETHER_HDR_SIZE + IP_HDR_SIZE + len);
+
+	return 0;	/* transmited */
+}
+
+#if (CONFIG_COMMANDS & CFG_CMD_PING)
+static ushort PingSeqNo;
+
+int PingSend(void)
+{
+	static uchar mac[6];
+	volatile IP_t *ip;
+	volatile ushort *s;
+
+	/* XXX always send arp request */
+
+	memcpy(mac, NetEtherNullAddr, 6);
+
+#ifdef ET_DEBUG
+	printf("sending ARP for %08lx\n", NetPingIP);
+#endif
+
+	NetArpWaitPacketIP = NetPingIP;
+	NetArpWaitPacketMAC = mac;
+
+	NetSetEther(NetArpWaitTxPacket, mac, PROT_IP);
+
+	ip = (volatile IP_t *)(NetArpWaitTxPacket + ETHER_HDR_SIZE);
+
+	/*
+	 *	Construct an IP and ICMP header.  (need to set no fragment bit - XXX)
+	 */
+	ip->ip_hl_v  = 0x45;		/* IP_HDR_SIZE / 4 (not including UDP) */
+	ip->ip_tos   = 0;
+	ip->ip_len   = htons(IP_HDR_SIZE_NO_UDP + 8);
+	ip->ip_id    = htons(NetIPID++);
+	ip->ip_off   = htons(0x4000);	/* No fragmentation */
+	ip->ip_ttl   = 255;
+	ip->ip_p     = 0x01;		/* ICMP */
+	ip->ip_sum   = 0;
+	NetCopyIP((void*)&ip->ip_src, &NetOurIP); /* already in network byte order */
+	NetCopyIP((void*)&ip->ip_dst, &NetPingIP);	   /* - "" - */
+	ip->ip_sum   = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2);
+
+	s = &ip->udp_src;		/* XXX ICMP starts here */
+	s[0] = htons(0x0800);		/* echo-request, code */
+	s[1] = 0;			/* checksum */
+	s[2] = 0; 			/* identifier */
+	s[3] = htons(PingSeqNo++);	/* sequence number */
+	s[1] = ~NetCksum((uchar *)s, 8/2);
+
+	/* size of the waiting packet */
+	NetArpWaitTxPacketSize = ETHER_HDR_SIZE + IP_HDR_SIZE_NO_UDP + 8;
+
+	/* and do the ARP request */
+	NetArpWaitTry = 1;
+	NetArpWaitTimerStart = get_timer(0);
+	ArpRequest();
+	return 1;	/* waiting */
+}
+
+static void
+PingTimeout (void)
+{
+	eth_halt();
+	NetState = NETLOOP_FAIL;	/* we did not get the reply */
+}
 
+static void
+PingHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len)
+{
+	IPaddr_t tmp;
+	volatile IP_t *ip = (volatile IP_t *)pkt;
+
+	tmp = NetReadIP((void *)&ip->ip_src);
+	if (tmp != NetPingIP)
+		return;
+
+	NetState = NETLOOP_SUCCESS;
+}
+
+static void PingStart(void)
+{
+	NetSetTimeout (10 * CFG_HZ, PingTimeout);
+	NetSetHandler (PingHandler);
+
+	PingSend();
+}
+
+#endif
 
 void
 NetReceive(volatile uchar * pkt, int len)
@@ -387,7 +643,6 @@ NetReceive(volatile uchar * pkt, int len)
 	IPaddr_t tmp;
 	int	x;
 
-
 	NetRxPkt = pkt;
 	NetRxPktLen = len;
 	et = (Ethernet_t *)pkt;
@@ -462,14 +717,40 @@ NetReceive(volatile uchar * pkt, int len)
 			NetCopyIP(&arp->ar_data[16], &arp->ar_data[6]);
 			memcpy   (&arp->ar_data[ 0], NetOurEther, 6);
 			NetCopyIP(&arp->ar_data[ 6], &NetOurIP);
-			NetSendPacket((uchar *)et,((uchar *)arp-pkt)+ARP_HDR_SIZE);
+			(void) eth_send((uchar *)et, ((uchar *)arp-pkt) + ARP_HDR_SIZE);
 			return;
-		case ARPOP_REPLY:		/* set TFTP server eth addr	*/
+
+		case ARPOP_REPLY:		/* arp reply */
+			/* are we waiting for a reply */
+			if (!NetArpWaitPacketIP || !NetArpWaitPacketMAC)
+				break;
 #ifdef ET_DEBUG
-			printf("Got ARP REPLY, set server/gtwy eth addr\n");
+			printf("Got ARP REPLY, set server/gtwy eth addr (%02x:%02x:%02x:%02x:%02x:%02x)\n",
+				arp->ar_data[0], arp->ar_data[1],
+				arp->ar_data[2], arp->ar_data[3],
+				arp->ar_data[4], arp->ar_data[5]);
 #endif
-			memcpy (NetServerEther, &arp->ar_data[0], 6);
-			(*packetHandler)(0,0,0,0);	/* start TFTP */
+
+			tmp = NetReadIP(&arp->ar_data[6]);
+
+			/* matched waiting packet's address */
+			if (tmp == NetArpWaitReplyIP) {
+#ifdef ET_DEBUG
+				printf("Got it\n");
+#endif
+				/* save address for later use */
+				memcpy(NetArpWaitPacketMAC, &arp->ar_data[0], 6);
+
+				/* modify header, and transmit it */
+				memcpy(((Ethernet_t *)NetArpWaitTxPacket)->et_dest, NetArpWaitPacketMAC, 6);
+				(void) eth_send(NetArpWaitTxPacket, NetArpWaitTxPacketSize);
+
+				/* no arp request pending now */
+				NetArpWaitPacketIP = 0;
+				NetArpWaitTxPacketSize = 0;
+				NetArpWaitPacketMAC = NULL;
+
+			}
 			return;
 		default:
 #ifdef ET_DEBUG
@@ -553,13 +834,26 @@ NetReceive(volatile uchar * pkt, int len)
 		if (ip->ip_p == IPPROTO_ICMP) {
 			ICMP_t *icmph = (ICMP_t *)&(ip->udp_src);
 
-			if (icmph->type != ICMP_REDIRECT)
-				return;
+			switch (icmph->type) {
+			case ICMP_REDIRECT:
 			if (icmph->code != ICMP_REDIR_HOST)
 				return;
 			puts (" ICMP Host Redirect to ");
 			print_IPaddr(icmph->un.gateway);
 			putc(' ');
+				break;
+#if (CONFIG_COMMANDS & CFG_CMD_PING)
+			case ICMP_ECHO_REPLY:
+				/*
+				 *	IP header OK.  Pass the packet to the current handler.
+				 */
+				/* XXX point to ip packet */
+				(*packetHandler)((uchar *)ip, 0, 0, 0);
+				break;
+#endif
+			default:
+				return;
+			}
 		} else if (ip->ip_p != IPPROTO_UDP) {	/* Only UDP packets */
 			return;
 		}
@@ -582,15 +876,25 @@ NetReceive(volatile uchar * pkt, int len)
 static int net_check_prereq (proto_t protocol)
 {
 	switch (protocol) {
-	case ARP:	/* nothing to do */
-			break;
-
+			/* Fall through */
+#if (CONFIG_COMMANDS & CFG_CMD_PING)
+	case PING:
+			if (NetPingIP == 0) {
+				puts ("*** ERROR: ping address not given\n");
+				return (1);
+			}
+			goto common;
+#endif
 	case TFTP:
 			if (NetServerIP == 0) {
 				puts ("*** ERROR: `serverip' not set\n");
 				return (1);
 			}
 
+#if (CONFIG_COMMANDS & CFG_CMD_PING)
+		common:
+#endif
+
 			if (NetOurIP == 0) {
 				puts ("*** ERROR: `ipaddr' not set\n");
 				return (1);
@@ -626,6 +930,8 @@ static int net_check_prereq (proto_t protocol)
 #endif
 			}
 			/* Fall through */
+		default:
+			return(0);
 	}
 	return (0);	/* OK */
 }
@@ -723,22 +1029,14 @@ void ip_to_string (IPaddr_t x, char *s)
     );
 }
 
-void print_IPaddr (IPaddr_t x)
-{
-    char tmp[16];
-
-    ip_to_string(x, tmp);
-
-    puts(tmp);
-}
-
-IPaddr_t getenv_IPaddr (char *var)
+IPaddr_t string_to_ip(char *s)
 {
 	IPaddr_t addr;
-	char *s, *e;
+	char *e;
 	int i;
 
-	s = getenv (var);
+	if (s == NULL)
+		return(0);
 
 	for (addr=0, i=0; i<4; ++i) {
 		ulong val = s ? simple_strtoul(s, &e, 10) : 0;
@@ -751,3 +1049,17 @@ IPaddr_t getenv_IPaddr (char *var)
 
 	return (htonl(addr));
 }
+
+void print_IPaddr (IPaddr_t x)
+{
+    char tmp[16];
+
+    ip_to_string(x, tmp);
+
+    puts(tmp);
+}
+
+IPaddr_t getenv_IPaddr (char *var)
+{
+	return (string_to_ip(getenv(var)));
+}
diff --git a/net/tftp.c b/net/tftp.c
index 0ad244fd97..5598be32f1 100644
--- a/net/tftp.c
+++ b/net/tftp.c
@@ -142,10 +142,7 @@ TftpSend (void)
 		break;
 	}
 
-	NetSetEther (NetTxPacket, NetServerEther, PROT_IP);
-	NetSetIP (NetTxPacket + ETHER_HDR_SIZE, NetServerIP,
-					TftpServerPort, TftpOurPort, len);
-	NetSendPacket (NetTxPacket, ETHER_HDR_SIZE + IP_HDR_SIZE + len);
+	NetSendUDPPacket(NetServerEther, NetServerIP, TftpServerPort, TftpOurPort, len);
 }
 
 
@@ -257,17 +254,6 @@ TftpTimeout (void)
 void
 TftpStart (void)
 {
-#ifdef ET_DEBUG
-	printf ("\nServer ethernet address %02x:%02x:%02x:%02x:%02x:%02x\n",
-		NetServerEther[0],
-		NetServerEther[1],
-		NetServerEther[2],
-		NetServerEther[3],
-		NetServerEther[4],
-		NetServerEther[5]
-	);
-#endif /* DEBUG */
-
 	if (BootFile[0] == '\0') {
 		IPaddr_t OurIP = ntohl(NetOurIP);
 
@@ -320,6 +306,9 @@ TftpStart (void)
 	TftpState = STATE_RRQ;
 	TftpOurPort = 1024 + (get_timer(0) % 3072);
 
+	/* zero out server ether in case the server ip has changed */
+	memset(NetServerEther, 0, 6);
+
 	TftpSend ();
 }