ppc4xx: Add support for AMCC 405EP Taihu board

Signed-off-by: John Otken <john@softadvances.com>

18 files changed, 2622 insertions, 6 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 693b115729..6dd43f8619 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -248,6 +248,7 @@ Tolunay Orkun <torkun@nextio.com>
 John Otken <jotken@softadvances.com>
 
 	luan			PPC440SP
+	taihu			PPC405EP
 
 Keith Outwater <Keith_Outwater@mvis.com>
 
diff --git a/MAKEALL b/MAKEALL
index 127faa83a3..f69134a63e 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -88,10 +88,10 @@ LIST_4xx="	\
 	ml300		ocotea		OCRTC		ORSG		\
 	p3p440		PCI405		pcs440ep	PIP405		\
 	PLU405		PMC405		PPChameleonEVB	sbc405		\
-	sc3		sequoia		sequoia_nand	taishan		\
-	VOH405		VOM405		W7OLMC		W7OLMG		\
-	walnut		WUH405		XPEDITE1K	yellowstone	\
-	yosemite	yucca						\
+	sc3		sequoia		sequoia_nand	taihu		\
+	taishan		VOH405		VOM405		W7OLMC		\
+	W7OLMG		walnut		WUH405		XPEDITE1K	\
+	yellowstone	yosemite	yucca				\
 "
 
 #########################################################################
diff --git a/Makefile b/Makefile
index 3af9962e67..d4fd34e43f 100644
--- a/Makefile
+++ b/Makefile
@@ -1254,6 +1254,9 @@ rainier_nand_config: unconfig
 sc3_config:unconfig
 	@./mkconfig $(@:_config=) ppc ppc4xx sc3
 
+taihu_config:	unconfig
+	@$(MKCONFIG) $(@:_config=) ppc ppc4xx taihu amcc
+
 taishan_config:	unconfig
 	@$(MKCONFIG) $(@:_config=) ppc ppc4xx taishan amcc
 
diff --git a/board/amcc/taihu/Makefile b/board/amcc/taihu/Makefile
new file mode 100644
index 0000000000..9731c6e332
--- /dev/null
+++ b/board/amcc/taihu/Makefile
@@ -0,0 +1,49 @@
+#
+# (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	= $(obj)lib$(BOARD).a
+
+COBJS	= $(BOARD).o flash.o lcd.o update.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+
+$(LIB):	$(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+clean:
+	rm -f $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/amcc/taihu/config.mk b/board/amcc/taihu/config.mk
new file mode 100644
index 0000000000..1bdf5e4fcf
--- /dev/null
+++ b/board/amcc/taihu/config.mk
@@ -0,0 +1,24 @@
+#
+# (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
+#
+
+TEXT_BASE = 0xFFFC0000
diff --git a/board/amcc/taihu/flash.c b/board/amcc/taihu/flash.c
new file mode 100644
index 0000000000..290259e73f
--- /dev/null
+++ b/board/amcc/taihu/flash.c
@@ -0,0 +1,1083 @@
+/*
+ * (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
+ */
+
+/*
+ * Modified 4/5/2001
+ * Wait for completion of each sector erase command issued
+ * 4/5/2001
+ * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
+ */
+
+#include <common.h>
+#include <ppc4xx.h>
+#include <asm/processor.h>
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];	/* info for FLASH chips        */
+
+#undef DEBUG
+#ifdef DEBUG
+#define DEBUGF(x...) printf(x)
+#else
+#define DEBUGF(x...)
+#endif				/* DEBUG */
+
+#define CFG_FLASH_CHAR_SIZE unsigned char
+#define CFG_FLASH_CHAR_ADDR0 (0x0aaa)
+#define CFG_FLASH_CHAR_ADDR1 (0x0555)
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size(vu_long * addr, flash_info_t * info);
+static void flash_get_offsets(ulong base, flash_info_t * info);
+static int write_word(flash_info_t * info, ulong dest, ulong data);
+#ifdef FLASH_BASE1_PRELIM
+static int write_word_1(flash_info_t * info, ulong dest, ulong data);
+static int write_word_2(flash_info_t * info, ulong dest, ulong data);
+static int flash_erase_1(flash_info_t * info, int s_first, int s_last);
+static int flash_erase_2(flash_info_t * info, int s_first, int s_last);
+static ulong flash_get_size_1(vu_long * addr, flash_info_t * info);
+static ulong flash_get_size_2(vu_long * addr, flash_info_t * info);
+#endif
+
+unsigned long flash_init(void)
+{
+	unsigned long size_b0, size_b1=0;
+	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_BASE0_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);
+	}
+
+	if (size_b0) {
+		/* Setup offsets */
+		flash_get_offsets(FLASH_BASE0_PRELIM, &flash_info[0]);
+		/* Monitor protection ON by default */
+		(void)flash_protect(FLAG_PROTECT_SET,
+				    CFG_MONITOR_BASE,
+				    CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1,
+				    &flash_info[0]);
+#ifdef CFG_ENV_IS_IN_FLASH
+		(void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR,
+				    CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1,
+				    &flash_info[0]);
+		(void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR_REDUND,
+				    CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1,
+				    &flash_info[0]);
+#endif
+		/* Also protect sector containing initial power-up instruction */
+		/* (flash_protect() checks address range - other call ignored) */
+		(void)flash_protect(FLAG_PROTECT_SET,
+				    0xFFFFFFFC, 0xFFFFFFFF, &flash_info[0]);
+
+		flash_info[0].size = size_b0;
+	}
+#ifdef FLASH_BASE1_PRELIM
+	size_b1 =
+	    flash_get_size((vu_long *) FLASH_BASE1_PRELIM, &flash_info[1])*2;
+
+	if (flash_info[1].flash_id == FLASH_UNKNOWN) {
+		printf("## Unknown FLASH on Bank 1 - Size = 0x%08lx = %ld MB\n",
+		       size_b1, size_b1 << 20);
+	}
+
+	if (size_b1) {
+		/* Setup offsets */
+		flash_get_offsets(FLASH_BASE1_PRELIM, &flash_info[1]);
+		flash_info[1].size = size_b1;
+	}
+#endif
+	return (size_b0 + size_b1);
+}
+
+static void flash_get_offsets(ulong base, flash_info_t * info)
+{
+	int i;
+
+	/* set up sector start address table */
+	if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
+	    (info->flash_id == FLASH_AM040)) {
+		for (i = 0; i < info->sector_count; i++)
+			info->start[i] = base + (i * 0x00010000);
+	} else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
+		for (i = 0; i < info->sector_count; i++) {
+			info->start[i] = base + (i * 0x00010000*2);
+		}
+	} else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N ) {
+		for (i = 0; i < info->sector_count; i++) {
+			info->start[i] = base + (i * 0x00020000*2);
+		}
+	} else {
+		if (info->flash_id & FLASH_BTYPE) {
+			/* set sector offsets for bottom boot block type        */
+			info->start[0] = base + 0x00000000;
+			info->start[1] = base + 0x00004000;
+			info->start[2] = base + 0x00006000;
+			info->start[3] = base + 0x00008000;
+			for (i = 4; i < info->sector_count; i++) {
+				info->start[i] =
+				    base + (i * 0x00010000) - 0x00030000;
+			}
+		} else {
+			/* set sector offsets for top boot block type           */
+			i = info->sector_count - 1;
+			info->start[i--] = base + info->size - 0x00004000;
+			info->start[i--] = base + info->size - 0x00006000;
+			info->start[i--] = base + info->size - 0x00008000;
+			for (; i >= 0; i--) {
+				info->start[i] = base + i * 0x00010000;
+			}
+		}
+	}
+}
+
+
+void flash_print_info(flash_info_t * info)
+{
+	int i;
+	int k;
+	int size;
+	int erased;
+	volatile unsigned long *flash;
+
+	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_STM:
+		printf("STM ");
+		break;
+	case FLASH_MAN_FUJ:
+		printf("FUJITSU ");
+		break;
+	case FLASH_MAN_SST:
+		printf("SST ");
+		break;
+	default:
+		printf("Unknown Vendor ");
+		break;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case FLASH_AM040:
+		printf("AM29F040 (512 Kbit, uniform sector size)\n");
+		break;
+	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_AMD016:
+		printf("AM29F016D (16 Mbit, uniform sector size)\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;
+	case FLASH_AM033C:
+		printf("AM29LV033C (32 Mbit, top boot sector)\n");
+		break;
+	case FLASH_AMLV128U:
+		printf("AM29LV128U (128 Mbit * 2, top boot sector)\n");
+		break;
+	case FLASH_SST800A:
+		printf("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
+		break;
+	case FLASH_SST160A:
+		printf("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
+		break;
+	case FLASH_STMW320DT:
+		printf ("M29W320DT (32 M, top sector)\n");
+		break;
+	case FLASH_S29GL128N:
+		printf ("S29GL128N (256 Mbit, uniform sector size)\n");
+		break;
+	default:
+		printf("Unknown Chip Type\n");
+		break;
+	}
+
+	printf("  Size: %ld KB in %d Sectors\n",
+	       info->size >> 10, info->sector_count);
+
+	printf("  Sector Start Addresses:");
+	for (i = 0; i < info->sector_count; ++i) {
+		/*
+		 * Check if whole sector is erased
+		 */
+		if (i != (info->sector_count - 1))
+			size = info->start[i + 1] - info->start[i];
+		else
+			size = info->start[0] + info->size - info->start[i];
+		erased = 1;
+		flash = (volatile unsigned long *)info->start[i];
+		size = size >> 2;	/* divide by 4 for longword access */
+		for (k = 0; k < size; k++) {
+			if (*flash++ != 0xffffffff) {
+				erased = 0;
+				break;
+			}
+		}
+
+		if ((i % 5) == 0)
+			printf("\n   ");
+		printf(" %08lX%s%s",
+		       info->start[i],
+		       erased ? " E" : "  ", info->protect[i] ? "RO " : "   ");
+	}
+	printf("\n");
+	return;
+}
+
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+#ifdef FLASH_BASE1_PRELIM
+static ulong flash_get_size(vu_long * addr, flash_info_t * info)
+{
+	if ((ulong)addr == FLASH_BASE1_PRELIM) {
+		return flash_get_size_2(addr, info);
+	} else {
+		return flash_get_size_1(addr, info);
+	}
+}
+
+static ulong flash_get_size_1(vu_long * addr, flash_info_t * info)
+#else
+static ulong flash_get_size(vu_long * addr, flash_info_t * info)
+#endif
+{
+	short i;
+	CFG_FLASH_WORD_SIZE value;
+	ulong base = (ulong) addr;
+	volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) addr;
+
+	DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
+
+	/* Write auto select command: read Manufacturer ID */
+	addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
+	addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
+	addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00900090;
+	udelay(1000);
+
+	value = addr2[0];
+	DEBUGF("FLASH MANUFACT: %x\n", value);
+
+	switch (value) {
+	case (CFG_FLASH_WORD_SIZE) AMD_MANUFACT:
+		info->flash_id = FLASH_MAN_AMD;
+		break;
+	case (CFG_FLASH_WORD_SIZE) FUJ_MANUFACT:
+		info->flash_id = FLASH_MAN_FUJ;
+		break;
+	case (CFG_FLASH_WORD_SIZE) SST_MANUFACT:
+		info->flash_id = FLASH_MAN_SST;
+		break;
+	case (CFG_FLASH_WORD_SIZE) STM_MANUFACT:
+		info->flash_id = FLASH_MAN_STM;
+		break;
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		info->sector_count = 0;
+		info->size = 0;
+		return 0;	/* no or unknown flash  */
+	}
+
+	value = addr2[1];	/* device ID            */
+	DEBUGF("\nFLASH DEVICEID: %x\n", value);
+
+	switch (value) {
+	case (CFG_FLASH_WORD_SIZE) AMD_ID_LV040B:
+		info->flash_id += FLASH_AM040;
+		info->sector_count = 8;
+		info->size = 0x0080000;	/* => 512 ko */
+		break;
+
+	case (CFG_FLASH_WORD_SIZE) AMD_ID_F040B:
+		info->flash_id += FLASH_AM040;
+		info->sector_count = 8;
+		info->size = 0x0080000;	/* => 512 ko */
+		break;
+
+	case (CFG_FLASH_WORD_SIZE) STM_ID_M29W040B:
+		info->flash_id += FLASH_AM040;
+		info->sector_count = 8;
+		info->size = 0x0080000;	/* => 512 ko */
+		break;
+
+	case (CFG_FLASH_WORD_SIZE) AMD_ID_F016D:
+		info->flash_id += FLASH_AMD016;
+		info->sector_count = 32;
+		info->size = 0x00200000;
+		break;		/* => 2 MB              */
+
+	case (CFG_FLASH_WORD_SIZE) AMD_ID_LV033C:
+		info->flash_id += FLASH_AMDLV033C;
+		info->sector_count = 64;
+		info->size = 0x00400000;
+		break;		/* => 4 MB              */
+
+	case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400T:
+		info->flash_id += FLASH_AM400T;
+		info->sector_count = 11;
+		info->size = 0x00080000;
+		break;		/* => 0.5 MB            */
+
+	case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400B:
+		info->flash_id += FLASH_AM400B;
+		info->sector_count = 11;
+		info->size = 0x00080000;
+		break;		/* => 0.5 MB            */
+
+	case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800T:
+		info->flash_id += FLASH_AM800T;
+		info->sector_count = 19;
+		info->size = 0x00100000;
+		break;		/* => 1 MB              */
+
+	case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800B:
+		info->flash_id += FLASH_AM800B;
+		info->sector_count = 19;
+		info->size = 0x00100000;
+		break;		/* => 1 MB              */
+
+	case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160T:
+		info->flash_id += FLASH_AM160T;
+		info->sector_count = 35;
+		info->size = 0x00200000;
+		break;		/* => 2 MB              */
+
+	case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160B:
+		info->flash_id += FLASH_AM160B;
+		info->sector_count = 35;
+		info->size = 0x00200000;
+		break;		/* => 2 MB              */
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		return 0;	/* => no or unknown flash */
+	}
+
+	/* set up sector start address table */
+	if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
+	    ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
+	    ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
+		for (i = 0; i < info->sector_count; i++)
+			info->start[i] = base + (i * 0x00010000);
+	}
+	else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
+		for (i = 0; i < info->sector_count; i++)
+			info->start[i] = base + (i * 0x00010000 * 2);
+	} else {
+		if (info->flash_id & FLASH_BTYPE) {
+			/* set sector offsets for bottom boot block type        */
+			info->start[0] = base + 0x00000000;
+			info->start[1] = base + 0x00004000;
+			info->start[2] = base + 0x00006000;
+			info->start[3] = base + 0x00008000;
+			for (i = 4; i < info->sector_count; i++) {
+				info->start[i] =
+				    base + (i * 0x00010000) - 0x00030000;
+			}
+		} else {
+			/* set sector offsets for top boot block type           */
+			i = info->sector_count - 1;
+			info->start[i--] = base + info->size - 0x00004000;
+			info->start[i--] = base + info->size - 0x00006000;
+			info->start[i--] = base + info->size - 0x00008000;
+			for (; i >= 0; i--) {
+				info->start[i] = base + i * 0x00010000;
+			}
+		}
+	}
+
+	/* 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 */
+		addr2 = (volatile CFG_FLASH_WORD_SIZE *)(info->start[i]);
+
+		/* For AMD29033C flash we need to resend the command of *
+		 * reading flash protection for upper 8 Mb of flash     */
+		if (i == 32) {
+			addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
+			addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
+			addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090;
+		}
+
+		if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
+			info->protect[i] = 0;
+		else
+			info->protect[i] = addr2[2] & 1;
+	}
+
+	/* issue bank reset to return to read mode */
+	addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0;
+
+	return info->size;
+}
+
+static int wait_for_DQ7_1(flash_info_t * info, int sect)
+{
+	ulong start, now, last;
+	volatile CFG_FLASH_WORD_SIZE *addr =
+	    (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
+
+	start = get_timer(0);
+	last = start;
+	while ((addr[0] & (CFG_FLASH_WORD_SIZE) 0x00800080) !=
+	       (CFG_FLASH_WORD_SIZE) 0x00800080) {
+		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;
+		}
+	}
+	return 0;
+}
+
+#ifdef FLASH_BASE1_PRELIM
+int flash_erase(flash_info_t * info, int s_first, int s_last)
+{
+	if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
+	    ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
+	    ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) ||
+	    ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N) ||
+	    ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) {
+		return flash_erase_2(info, s_first, s_last);
+	} else {
+		return flash_erase_1(info, s_first, s_last);
+	}
+}
+
+static int flash_erase_1(flash_info_t * info, int s_first, int s_last)
+#else
+int flash_erase(flash_info_t * info, int s_first, int s_last)
+#endif
+{
+	volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
+	volatile CFG_FLASH_WORD_SIZE *addr2;
+	int flag, prot, sect, l_sect;
+	int i;
+
+	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) {
+		printf("Can't erase unknown flash type - aborted\n");
+		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();
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect <= s_last; sect++) {
+		if (info->protect[sect] == 0) {	/* not protected */
+			addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
+
+			if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
+				addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
+				addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
+				addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080;
+				addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
+				addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
+				addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00500050;	/* block erase */
+				for (i = 0; i < 50; i++)
+					udelay(1000);	/* wait 1 ms */
+			} else {
+				addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
+				addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
+				addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080;
+				addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
+				addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
+				addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00300030;	/* sector erase */
+			}
+			l_sect = sect;
+			/*
+			 * Wait for each sector to complete, it's more
+			 * reliable.  According to AMD Spec, you must
+			 * issue all erase commands within a specified
+			 * timeout.  This has been seen to fail, especially
+			 * if printf()s are included (for debug)!!
+			 */
+			wait_for_DQ7_1(info, sect);
+		}
+	}
+
+	/* re-enable interrupts if necessary */
+	if (flag)
+		enable_interrupts();
+
+	/* wait at least 80us - let's wait 1 ms */
+	udelay(1000);
+
+	/* reset to read mode */
+	addr = (CFG_FLASH_WORD_SIZE *) info->start[0];
+	addr[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0;	/* 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));
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+#ifdef FLASH_BASE1_PRELIM
+static int write_word(flash_info_t * info, ulong dest, ulong data)
+{
+	if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
+	    ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
+	    ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) ||
+	    ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N) ||
+	    ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) {
+		return write_word_2(info, dest, data);
+	} else {
+		return write_word_1(info, dest, data);
+	}
+}
+
+static int write_word_1(flash_info_t * info, ulong dest, ulong data)
+#else
+static int write_word(flash_info_t * info, ulong dest, ulong data)
+#endif
+{
+	volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
+	volatile CFG_FLASH_WORD_SIZE *dest2 = (CFG_FLASH_WORD_SIZE *) dest;
+	volatile CFG_FLASH_WORD_SIZE *data2 = (CFG_FLASH_WORD_SIZE *) & data;
+	ulong start;
+	int i;
+
+	/* Check if Flash is (sufficiently) erased */
+	if ((*((vu_long *)dest) & data) != data) {
+		return 2;
+	}
+
+	for (i = 0; i < 4 / sizeof(CFG_FLASH_WORD_SIZE); i++) {
+		int flag;
+
+		/* Disable interrupts which might cause a timeout here */
+		flag = disable_interrupts();
+
+		addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
+		addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
+		addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00A000A0;
+
+		dest2[i] = data2[i];
+
+		/* re-enable interrupts if necessary */
+		if (flag)
+			enable_interrupts();
+
+		/* data polling for D7 */
+		start = get_timer(0);
+		while ((dest2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080) !=
+		       (data2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080)) {
+
+			if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+				return 1;
+			}
+		}
+	}
+
+	return 0;
+}
+
+#ifdef FLASH_BASE1_PRELIM
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+static ulong flash_get_size_2(vu_long * addr, flash_info_t * info)
+{
+	short i;
+	CFG_FLASH_CHAR_SIZE value;
+	ulong base = (ulong) addr;
+	volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) addr;
+
+	DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
+
+	/* Write auto select command: read Manufacturer ID */
+	addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
+	addr2[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
+	addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090;
+	udelay(1000);
+
+	value = (CFG_FLASH_CHAR_SIZE)addr2[0];
+	DEBUGF("FLASH MANUFACT: %x\n", value);
+
+	switch (value) {
+	case (CFG_FLASH_CHAR_SIZE) AMD_MANUFACT:
+		info->flash_id = FLASH_MAN_AMD;
+		break;
+	case (CFG_FLASH_CHAR_SIZE) FUJ_MANUFACT:
+		info->flash_id = FLASH_MAN_FUJ;
+		break;
+	case (CFG_FLASH_CHAR_SIZE) SST_MANUFACT:
+		info->flash_id = FLASH_MAN_SST;
+		break;
+	case (CFG_FLASH_CHAR_SIZE) STM_MANUFACT:
+		info->flash_id = FLASH_MAN_STM;
+		break;
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		info->sector_count = 0;
+		info->size = 0;
+		return 0;		/* no or unknown flash */
+	}
+
+	value = (CFG_FLASH_CHAR_SIZE)addr2[2];	/* device ID */
+	DEBUGF("\nFLASH DEVICEID: %x\n", value);
+
+	switch (value) {
+	case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV040B:
+		info->flash_id += FLASH_AM040;
+		info->sector_count = 8;
+		info->size = 0x0080000;	/* => 512 ko */
+		break;
+
+	case (CFG_FLASH_CHAR_SIZE) AMD_ID_F040B:
+		info->flash_id += FLASH_AM040;
+		info->sector_count = 8;
+		info->size = 0x0080000;	/* => 512 ko */
+		break;
+
+	case (CFG_FLASH_CHAR_SIZE) STM_ID_M29W040B:
+		info->flash_id += FLASH_AM040;
+		info->sector_count = 8;
+		info->size = 0x0080000;	/* => 512 ko */
+		break;
+
+	case (CFG_FLASH_CHAR_SIZE) AMD_ID_F016D:
+		info->flash_id += FLASH_AMD016;
+		info->sector_count = 32;
+		info->size = 0x00200000;
+		break;			/* => 2 MB */
+
+	case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV033C:
+		info->flash_id += FLASH_AMDLV033C;
+		info->sector_count = 64;
+		info->size = 0x00400000;
+		break;			/* => 4 MB */
+
+	case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV400T:
+		info->flash_id += FLASH_AM400T;
+		info->sector_count = 11;
+		info->size = 0x00080000;
+		break;			/* => 0.5 MB */
+
+	case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV400B:
+		info->flash_id += FLASH_AM400B;
+		info->sector_count = 11;
+		info->size = 0x00080000;
+		break;			/* => 0.5 MB */
+
+	case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV800T:
+		info->flash_id += FLASH_AM800T;
+		info->sector_count = 19;
+		info->size = 0x00100000;
+		break;			/* => 1 MB */
+
+	case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV800B:
+		info->flash_id += FLASH_AM800B;
+		info->sector_count = 19;
+		info->size = 0x00100000;
+		break;			/* => 1 MB */
+
+	case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV160T:
+		info->flash_id += FLASH_AM160T;
+		info->sector_count = 35;
+		info->size = 0x00200000;
+		break;			/* => 2 MB */
+
+	case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV160B:
+		info->flash_id += FLASH_AM160B;
+		info->sector_count = 35;
+		info->size = 0x00200000;
+		break;			/* => 2 MB */
+	case (CFG_FLASH_CHAR_SIZE) AMD_ID_MIRROR:
+		if ((CFG_FLASH_CHAR_SIZE)addr2[0x1c] == (CFG_FLASH_CHAR_SIZE)AMD_ID_LV128U_2
+				&& (CFG_FLASH_CHAR_SIZE)addr2[0x1e] ==  (CFG_FLASH_CHAR_SIZE)AMD_ID_LV128U_3) {
+			info->flash_id += FLASH_AMLV128U;
+			info->sector_count = 256;
+			info->size = 0x01000000;
+		} else if ((CFG_FLASH_CHAR_SIZE)addr2[0x1c] == (CFG_FLASH_CHAR_SIZE)AMD_ID_GL128N_2
+				&& (CFG_FLASH_CHAR_SIZE)addr2[0x1e] ==  (CFG_FLASH_CHAR_SIZE)AMD_ID_GL128N_3 ) {
+			info->flash_id += FLASH_S29GL128N;
+			info->sector_count = 128;
+			info->size = 0x01000000;
+		}
+		else
+			info->flash_id = FLASH_UNKNOWN;
+		break;			/* => 2 MB */
+
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		return 0;		/* => no or unknown flash */
+	}
+
+	/* set up sector start address table */
+	if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
+	    ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
+	    ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
+		for (i = 0; i < info->sector_count; i++)
+			info->start[i] = base + (i * 0x00010000);
+	} else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
+		for (i = 0; i < info->sector_count; i++)
+			info->start[i] = base + (i * 0x00010000);
+	} else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N ) {
+		for (i = 0; i < info->sector_count; i++)
+			info->start[i] = base + (i * 0x00020000);
+	} else {
+		if (info->flash_id & FLASH_BTYPE) {
+			/* set sector offsets for bottom boot block type */
+			info->start[0] = base + 0x00000000;
+			info->start[1] = base + 0x00004000;
+			info->start[2] = base + 0x00006000;
+			info->start[3] = base + 0x00008000;
+			for (i = 4; i < info->sector_count; i++) {
+				info->start[i] =
+				    base + (i * 0x00010000) - 0x00030000;
+			}
+		} else {
+			/* set sector offsets for top boot block type */
+			i = info->sector_count - 1;
+			info->start[i--] = base + info->size - 0x00004000;
+			info->start[i--] = base + info->size - 0x00006000;
+			info->start[i--] = base + info->size - 0x00008000;
+			for (; i >= 0; i--) {
+				info->start[i] = base + i * 0x00010000;
+			}
+		}
+	}
+
+	/* 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 */
+		addr2 = (volatile CFG_FLASH_WORD_SIZE *)(info->start[i]);
+
+		/* For AMD29033C flash we need to resend the command of *
+		 * reading flash protection for upper 8 Mb of flash     */
+		if (i == 32) {
+			addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
+			addr2[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
+			addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090;
+		}
+
+		if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
+			info->protect[i] = 0;
+		else
+			info->protect[i] = (CFG_FLASH_CHAR_SIZE)addr2[4] & 1;
+	}
+
+	/* issue bank reset to return to read mode */
+	addr2[0] = (CFG_FLASH_WORD_SIZE) 0xF0F0F0F0;
+	return info->size;
+}
+
+static int wait_for_DQ7_2(flash_info_t * info, int sect)
+{
+	ulong start, now, last;
+	volatile CFG_FLASH_WORD_SIZE *addr =
+	    (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
+
+	start = get_timer(0);
+	last = start;
+	while (((CFG_FLASH_WORD_SIZE)addr[0] & (CFG_FLASH_WORD_SIZE) 0x80808080) !=
+	       (CFG_FLASH_WORD_SIZE) 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;
+		}
+	}
+	return 0;
+}
+
+static int flash_erase_2(flash_info_t * info, int s_first, int s_last)
+{
+	volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
+	volatile CFG_FLASH_WORD_SIZE *addr2;
+	int flag, prot, sect, l_sect;
+	int i;
+
+	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) {
+		printf("Can't erase unknown flash type - aborted\n");
+		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();
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect <= s_last; sect++) {
+		if (info->protect[sect] == 0) {	/* not protected */
+			addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
+
+			if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
+				addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
+				addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
+				addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x80808080;
+				addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
+				addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
+				addr2[0] = (CFG_FLASH_WORD_SIZE) 0x50505050;	/* block erase */
+				for (i = 0; i < 50; i++)
+					udelay(1000);	/* wait 1 ms */
+			} else {
+				addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
+				addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
+				addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x80808080;
+				addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
+				addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
+				addr2[0] = (CFG_FLASH_WORD_SIZE) 0x30303030;	/* sector erase */
+			}
+			l_sect = sect;
+			/*
+			 * Wait for each sector to complete, it's more
+			 * reliable.  According to AMD Spec, you must
+			 * issue all erase commands within a specified
+			 * timeout.  This has been seen to fail, especially
+			 * if printf()s are included (for debug)!!
+			 */
+			wait_for_DQ7_2(info, sect);
+		}
+	}
+
+	/* re-enable interrupts if necessary */
+	if (flag)
+		enable_interrupts();
+
+	/* wait at least 80us - let's wait 1 ms */
+	udelay(1000);
+
+	/* reset to read mode */
+	addr = (CFG_FLASH_WORD_SIZE *) info->start[0];
+	addr[0] = (CFG_FLASH_WORD_SIZE) 0xF0F0F0F0; /* reset bank */
+
+	printf(" done\n");
+	return 0;
+}
+
+static int write_word_2(flash_info_t * info, ulong dest, ulong data)
+{
+	volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
+	volatile CFG_FLASH_WORD_SIZE *dest2 = (CFG_FLASH_WORD_SIZE *) dest;
+	volatile CFG_FLASH_WORD_SIZE *data2 = (CFG_FLASH_WORD_SIZE *) & data;
+	ulong start;
+	int i;
+
+	/* Check if Flash is (sufficiently) erased */
+	if ((*((vu_long *)dest) & data) != data) {
+		return 2;
+	}
+
+	for (i = 0; i < 4 / sizeof(CFG_FLASH_WORD_SIZE); i++) {
+		int flag;
+
+		/* Disable interrupts which might cause a timeout here */
+		flag = disable_interrupts();
+
+		addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
+		addr2[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
+		addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xA0A0A0A0;
+
+		dest2[i] = data2[i];
+
+		/* re-enable interrupts if necessary */
+		if (flag)
+			enable_interrupts();
+
+		/* data polling for D7 */
+		start = get_timer(0);
+		while ((dest2[i] & (CFG_FLASH_WORD_SIZE) 0x80808080) !=
+		       (data2[i] & (CFG_FLASH_WORD_SIZE) 0x80808080)) {
+
+			if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+				return 1;
+			}
+		}
+	}
+
+	return 0;
+}
+
+#endif /* FLASH_BASE1_PRELIM */
diff --git a/board/amcc/taihu/lcd.c b/board/amcc/taihu/lcd.c
new file mode 100644
index 0000000000..3d042dfa73
--- /dev/null
+++ b/board/amcc/taihu/lcd.c
@@ -0,0 +1,257 @@
+/*
+ * 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 <common.h>
+#include <command.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+
+#define LCD_CMD_ADDR	0x50100002
+#define LCD_DATA_ADDR	0x50100003
+#define LCD_BLK_CTRL	CPLD_REG1_ADDR
+
+static char *amcc_logo = "AMCC 405EP TAIHU EVALUATION KIT";
+static int addr_flag = 0x80;
+
+static void lcd_bl_ctrl(char val)
+{
+	out_8((u8 *) LCD_BLK_CTRL, in_8((u8 *) LCD_BLK_CTRL) | val);
+}
+
+static void lcd_putc(int val)
+{
+	int i = 100;
+	char addr;
+
+	while (i--) {
+		if ((in_8((u8 *) LCD_CMD_ADDR) & 0x80) != 0x80) { /*BF = 1 ?*/
+			udelay(50);
+			break;
+		}
+		udelay(50);
+	}
+
+	if (in_8((u8 *) LCD_CMD_ADDR) & 0x80) {
+		printf("LCD is busy\n");
+		return;
+	}
+
+	addr = in_8((u8 *) LCD_CMD_ADDR);
+	udelay(50);
+	if ((addr != 0) && (addr % 0x10 == 0)) {
+		addr_flag ^= 0x40;
+		out_8((u8 *) LCD_CMD_ADDR, addr_flag);
+	}
+
+	udelay(50);
+	out_8((u8 *) LCD_DATA_ADDR, val);
+	udelay(50);
+}
+
+static void lcd_puts(char *s)
+{
+	char *p = s;
+	int i = 100;
+
+	while (i--) {
+		if ((in_8((u8 *) LCD_CMD_ADDR) & 0x80) != 0x80) { /*BF = 1 ?*/
+			udelay(50);
+			break;
+		}
+		udelay(50);
+	}
+
+	if (in_8((u8 *) LCD_CMD_ADDR) & 0x80) {
+		printf("LCD is busy\n");
+		return;
+	}
+
+	while (*p)
+		lcd_putc(*p++);
+}
+
+static void lcd_put_logo(void)
+{
+	int i = 100;
+	char *p = amcc_logo;
+
+	while (i--) {
+		if ((in_8((u8 *) LCD_CMD_ADDR) & 0x80) != 0x80) { /*BF = 1 ?*/
+			udelay(50);
+			break;
+		}
+		udelay(50);
+	}
+
+	if (in_8((u8 *) LCD_CMD_ADDR) & 0x80) {
+		printf("LCD is busy\n");
+		return;
+	}
+
+	out_8((u8 *) LCD_CMD_ADDR, 0x80);
+	while (*p)
+		lcd_putc(*p++);
+}
+
+int lcd_init(void)
+{
+	puts("LCD: ");
+	out_8((u8 *) LCD_CMD_ADDR, 0x38); /* set function:8-bit,2-line,5x7 font type */
+	udelay(50);
+	out_8((u8 *) LCD_CMD_ADDR, 0x0f); /* set display on,cursor on,blink on */
+	udelay(50);
+	out_8((u8 *) LCD_CMD_ADDR, 0x01); /* display clear */
+	udelay(2000);
+	out_8((u8 *) LCD_CMD_ADDR, 0x06); /* set entry */
+	udelay(50);
+	lcd_bl_ctrl(0x02);		/* set backlight on */
+	lcd_put_logo();
+	puts("ready\n");
+
+	return 0;
+}
+
+static int do_lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	out_8((u8 *) LCD_CMD_ADDR, 0x01);
+	udelay(2000);
+
+	return 0;
+}
+
+static int do_lcd_puts (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	if (argc < 2) {
+		printf("%s", cmdtp->usage);
+		return 1;
+	}
+	lcd_puts(argv[1]);
+
+	return 0;
+}
+
+static int do_lcd_putc (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	if (argc < 2) {
+		printf("%s", cmdtp->usage);
+		return 1;
+	}
+	lcd_putc((char)argv[1][0]);
+
+	return 0;
+}
+
+static int do_lcd_cur (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	ulong count;
+	ulong dir;
+	char cur_addr;
+
+	if (argc < 3) {
+		printf("%s", cmdtp->usage);
+		return 1;
+	}
+
+	count = simple_strtoul(argv[1], NULL, 16);
+	if (count > 31) {
+		printf("unable to shift > 0x20\n");
+		count = 0;
+	}
+
+	dir = simple_strtoul(argv[2], NULL, 16);
+	cur_addr = in_8((u8 *) LCD_CMD_ADDR);
+	udelay(50);
+
+	if (dir == 0x0) {
+		if (addr_flag == 0x80) {
+			if (count >= (cur_addr & 0xf)) {
+				out_8((u8 *) LCD_CMD_ADDR, 0x80);
+				udelay(50);
+				count = 0;
+			}
+		} else {
+			if (count >= ((cur_addr & 0x0f) + 0x0f)) {
+				out_8((u8 *) LCD_CMD_ADDR, 0x80);
+				addr_flag = 0x80;
+				udelay(50);
+				count = 0x0;
+			} else if (count >= ( cur_addr & 0xf)) {
+				count -= cur_addr & 0xf ;
+				out_8((u8 *) LCD_CMD_ADDR, 0x80 | 0xf);
+				addr_flag = 0x80;
+				udelay(50);
+			}
+		}
+	} else {
+		if (addr_flag == 0x80) {
+			if (count >= (0x1f - (cur_addr & 0xf))) {
+				count = 0x0;
+				addr_flag = 0xc0;
+				out_8((u8 *) LCD_CMD_ADDR, 0xc0 | 0xf);
+				udelay(50);
+			} else if ((count + (cur_addr & 0xf ))>=  0x0f) {
+				count = count + (cur_addr & 0xf) - 0x0f;
+				addr_flag = 0xc0;
+				out_8((u8 *) LCD_CMD_ADDR, 0xc0);
+				udelay(50);
+			}
+		} else if ((count + (cur_addr & 0xf )) >= 0x0f) {
+			count = 0x0;
+			out_8((u8 *) LCD_CMD_ADDR, 0xC0 | 0x0F);
+			udelay(50);
+		}
+	}
+	while (count--) {
+		if (dir == 0)
+			out_8((u8 *) LCD_CMD_ADDR, 0x10);
+		else
+			out_8((u8 *) LCD_CMD_ADDR, 0x14);
+		udelay(50);
+	}
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	lcd_cls, 1, 1, do_lcd_clear,
+	"lcd_cls - lcd clear display\n",
+	NULL
+	);
+
+U_BOOT_CMD(
+	lcd_puts, 2, 1, do_lcd_puts,
+	"lcd_puts - display string on lcd\n",
+	"<string> - <string> to be displayed\n"
+	);
+
+U_BOOT_CMD(
+	lcd_putc, 2, 1, do_lcd_putc,
+	"lcd_putc - display char on lcd\n",
+	"<char> - <char> to be displayed\n"
+	);
+
+U_BOOT_CMD(
+	lcd_cur, 3, 1, do_lcd_cur,
+	"lcd_cur - shift cursor on lcd\n",
+	"<count> <dir> - shift cursor on lcd <count> times, direction is <dir> \n"
+	" <count> - 0..31\n"
+	" <dir>   - 0=backward 1=forward\n"
+	);
diff --git a/board/amcc/taihu/taihu.c b/board/amcc/taihu/taihu.c
new file mode 100644
index 0000000000..ee9d3b5446
--- /dev/null
+++ b/board/amcc/taihu/taihu.c
@@ -0,0 +1,234 @@
+/*
+ * (C) Copyright 2000-2005
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2005-2007
+ * Beijing UD Technology Co., Ltd., taihusupport@amcc.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 <command.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <spi.h>
+#include <asm/gpio.h>
+
+extern int lcd_init(void);
+
+/*
+ * board_early_init_f
+ */
+int board_early_init_f(void)
+{
+	lcd_init();
+
+	mtdcr(uicsr, 0xFFFFFFFF);	/* clear all ints */
+	mtdcr(uicer, 0x00000000);	/* disable all ints */
+	mtdcr(uiccr, 0x00000000);
+	mtdcr(uicpr, 0xFFFF7F00);	/* set int polarities */
+	mtdcr(uictr, 0x00000000);	/* set int trigger levels */
+	mtdcr(uicsr, 0xFFFFFFFF);	/* clear all ints */
+	mtdcr(uicvcr, 0x00000001);	/* set vect base=0,INT0 highest priority */
+
+	mtebc(pb3ap, CFG_EBC_PB3AP);	/* memory bank 3 (CPLD_LCM) initialization */
+	mtebc(pb3cr, CFG_EBC_PB3CR);
+
+	return 0;
+}
+
+/*
+ * Check Board Identity:
+ */
+int checkboard(void)
+{
+	char *s = getenv("serial#");
+
+	puts("Board: Taihu - AMCC PPC405EP Evaluation Board");
+
+	if (s != NULL) {
+		puts(", serial# ");
+		puts(s);
+	}
+	putc('\n');
+
+	return 0;
+}
+
+/*************************************************************************
+ *  long int initdram
+ *
+ ************************************************************************/
+long int initdram(int board)
+{
+	return CFG_SDRAM_SIZE_PER_BANK * CFG_SDRAM_BANKS; /* 128Mbytes */
+}
+
+static int do_sw_stat(cmd_tbl_t* cmd_tp, int flags, int argc, char *argv[])
+{
+	char stat;
+	int i;
+
+	stat = in_8((u8 *) CPLD_REG0_ADDR);
+	printf("SW2 status: ");
+	for (i=0; i<4; i++) /* 4-position */
+		printf("%d:%s ", i, stat & (0x08 >> i)?"on":"off");
+	printf("\n");
+	return 0;
+}
+
+U_BOOT_CMD (
+	sw2_stat, 1, 1, do_sw_stat,
+	"sw2_stat - show status of switch 2\n",
+	NULL
+	);
+
+static int do_led_ctl(cmd_tbl_t* cmd_tp, int flags, int argc, char *argv[])
+{
+	int led_no;
+
+	if (argc != 3) {
+		printf("%s", cmd_tp->usage);
+		return -1;
+	}
+
+	led_no = simple_strtoul(argv[1], NULL, 16);
+	if (led_no != 1 && led_no != 2) {
+		printf("%s", cmd_tp->usage);
+		return -1;
+	}
+
+	if (strcmp(argv[2],"off") == 0x0) {
+		if (led_no == 1)
+			gpio_write_bit(30, 1);
+		else
+			gpio_write_bit(31, 1);
+	} else if (strcmp(argv[2],"on") == 0x0) {
+		if (led_no == 1)
+			gpio_write_bit(30, 0);
+		else
+			gpio_write_bit(31, 0);
+	} else {
+		printf("%s", cmd_tp->usage);
+		return -1;
+	}
+
+	return 0;
+}
+
+U_BOOT_CMD (
+	led_ctl, 3, 1, do_led_ctl,
+	"led_ctl	- make led 1 or 2  on or off\n",
+	"<led_no> <on/off>	-  make led <led_no> on/off,\n"
+	"\tled_no is 1 or 2\t"
+	);
+
+#define SPI_CS_GPIO0	0
+#define SPI_SCLK_GPIO14	14
+#define SPI_DIN_GPIO15	15
+#define SPI_DOUT_GPIO16	16
+
+void spi_scl(int bit)
+{
+	gpio_write_bit(SPI_SCLK_GPIO14, bit);
+}
+
+void spi_sda(int bit)
+{
+	gpio_write_bit(SPI_DOUT_GPIO16, bit);
+}
+
+unsigned char spi_read(void)
+{
+	return (unsigned char)gpio_read_out_bit(SPI_DIN_GPIO15);
+}
+
+void taihu_spi_chipsel(int cs)
+{
+	gpio_write_bit(SPI_CS_GPIO0, cs);
+}
+
+spi_chipsel_type spi_chipsel[]= {
+	taihu_spi_chipsel
+};
+
+int spi_chipsel_cnt = sizeof(spi_chipsel) / sizeof(spi_chipsel[0]);
+
+#ifdef CONFIG_PCI
+static unsigned char int_lines[32] = {
+	29, 30, 27, 28, 29, 30, 25, 27,
+	29, 30, 27, 28, 29, 30, 27, 28,
+	29, 30, 27, 28, 29, 30, 27, 28,
+	29, 30, 27, 28, 29, 30, 27, 28};
+
+static void taihu_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
+{
+	unsigned char int_line = int_lines[PCI_DEV(dev) & 31];
+
+	pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line);
+}
+
+int pci_pre_init(struct pci_controller *hose)
+{
+	hose->fixup_irq = taihu_pci_fixup_irq;
+	return 1;
+}
+#endif /* CONFIG_PCI */
+
+#ifdef CFG_DRAM_TEST
+int testdram(void)
+{
+	unsigned long *mem = (unsigned long *)0;
+	const unsigned long kend = (1024 / sizeof(unsigned long));
+	unsigned long k, n;
+	unsigned long msr;
+	unsigned long total_kbytes = CFG_SDRAM_SIZE_PER_BANK * CFG_SDRAM_BANKS / 1024;
+
+	msr = mfmsr();
+	mtmsr(msr & ~(MSR_EE));
+
+	for (k = 0; k < total_kbytes ;
+	     ++k, mem += (1024 / sizeof(unsigned long))) {
+		if ((k & 1023) == 0)
+			printf("%3d MB\r", k / 1024);
+
+		memset(mem, 0xaaaaaaaa, 1024);
+		for (n = 0; n < kend; ++n) {
+			if (mem[n] != 0xaaaaaaaa) {
+				printf("SDRAM test fails at: %08x\n",
+				       (uint) & mem[n]);
+				return 1;
+			}
+		}
+
+		memset(mem, 0x55555555, 1024);
+		for (n = 0; n < kend; ++n) {
+			if (mem[n] != 0x55555555) {
+				printf("SDRAM test fails at: %08x\n",
+				       (uint) & mem[n]);
+				return 1;
+			}
+		}
+	}
+	printf("SDRAM test passes\n");
+	mtmsr(msr);
+
+	return 0;
+}
+#endif /* CFG_DRAM_TEST */
diff --git a/board/amcc/taihu/u-boot.lds b/board/amcc/taihu/u-boot.lds
new file mode 100644
index 0000000000..be030923b8
--- /dev/null
+++ b/board/amcc/taihu/u-boot.lds
@@ -0,0 +1,150 @@
+/*
+ * (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
+{
+  .resetvec 0xFFFFFFFC :
+  {
+    *(.resetvec)
+  } = 0xffff
+
+  /* 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/ppc4xx/start.o	(.text)
+    cpu/ppc4xx/kgdb.o	(.text)
+    cpu/ppc4xx/traps.o	(.text)
+    cpu/ppc4xx/interrupts.o	(.text)
+    cpu/ppc4xx/serial.o	(.text)
+    cpu/ppc4xx/cpu_init.o	(.text)
+    cpu/ppc4xx/speed.o	(.text)
+    common/dlmalloc.o	(.text)
+    lib_generic/crc32.o		(.text)
+    lib_ppc/extable.o	(.text)
+    lib_generic/zlib.o		(.text)
+
+/*    . = env_offset;*/
+/*    common/environment.o(.text)*/
+
+    *(.text)
+    *(.fixup)
+    *(.got1)
+  }
+  _etext = .;
+  PROVIDE (etext = .);
+  .rodata    :
+  {
+    *(.rodata)
+    *(.rodata1)
+    *(.rodata.str1.4)
+    *(.eh_frame)
+  }
+  .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 = .);
+
+  . = .;
+  __u_boot_cmd_start = .;
+  .u_boot_cmd : { *(.u_boot_cmd) }
+  __u_boot_cmd_end = .;
+
+  . = .;
+  __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/amcc/taihu/update.c b/board/amcc/taihu/update.c
new file mode 100644
index 0000000000..55ad535c8c
--- /dev/null
+++ b/board/amcc/taihu/update.c
@@ -0,0 +1,132 @@
+/*
+ * 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 <common.h>
+#include <command.h>
+#include <asm/processor.h>
+#include <i2c.h>
+
+#define PCI_M66EN 0x10
+
+static uchar buf_33[] =
+{
+	0xb5,	/* 0x00:hce =1, bss = 0, pae=1, ppdv= 0b10,spe = 1,ebw=0b01*/
+	0x80,	/* 0x01~0x03:ptm1ms =0x80000001 */
+	0x00,
+	0x00,
+	0x00,	/* 0x04~0x06:ptm1la = 0x00000000 */
+	0x00,
+	0x00,
+	0x00,	/* 0x07~0x09:ptm2ma = 0x00000000 */
+	0x00,
+	0x00,
+	0x00,	/* 0x0a~0x0c:ptm2la = 0x00000000 */
+	0x00,
+	0x00,
+	0x10,	/* 0x0d~0x0e:vendor id 0x1014*/
+	0x14,
+	0x00,	/* 0x0f~0x10:device id 0x0000*/
+	0x00,
+	0x00,	/* 0x11:revision 0x00 */
+	0x00,	/* 0x12~0x14:class 0x000000 */
+	0x00,
+	0x00,
+	0x10,	/* 0x15~0x16:subsystem vendor id */
+	0xe8,
+	0x00,	/* 0x17~0x18:subsystem device id */
+	0x00,
+	0x61,	/* 0x19: opdv=0b01,cbdv=0b10,ccdv=0b00,ptm2ms_ena=0, ptm1ms_ena=1 */
+	0x68,	/* 0x1a: rpci=1,fbmul=0b1010,epdv=0b00 */
+	0x2d,	/* 0x1b: fwdvb=0b101,fwdva=0b101 */
+	0x82,	/* 0x1c: pllr=1,sscs=0,mpdv=0b00,tun[22-23]=0b10 */
+	0xbe,	/* 0x1d: tun[24-31]=0xbe */
+	0x00,
+	0x00
+};
+
+static uchar buf_66[] =
+{
+	0xb5,	/* 0x00:hce =1, bss = 0, pae=1, ppdv= 0b10,spe = 1,ebw=0b01*/
+	0x80,	/* 0x01~0x03:ptm1ms =0x80000001 */
+	0x00,
+	0x00,
+	0x00,	/* 0x04~0x06:ptm1la = 0x00000000 */
+	0x00,
+	0x00,
+	0x00,	/* 0x07~0x09:ptm2ma = 0x00000000 */
+	0x00,
+	0x00,
+	0x00,	/* 0x0a~0x0c:ptm2la = 0x00000000 */
+	0x00,
+	0x00,
+	0x10,	/* 0x0d~0x0e:vendor id 0x1014*/
+	0x14,
+	0x00,	/* 0x0f~0x10:device id 0x0000*/
+	0x00,
+	0x00,	/* 0x11:revision 0x00 */
+	0x00,	/* 0x12~0x14:class 0x000000 */
+	0x00,
+	0x00,
+	0x10,	/* 0x15~0x16:subsystem vendor id */
+	0xe8,
+	0x00,	/* 0x17~0x18:subsystem device id */
+	0x00,
+	0x61,	/* 0x19: opdv=0b01,cbdv=0b10,ccdv=0b00,ptm2ms_ena=0, ptm1ms_ena=1 */
+	0x68,	/* 0x1a: rpci=1,fbmul=0b1010,epdv=0b00 */
+	0x2d,	/* 0x1b: fwdvb=0b101,fwdva=0b101 */
+	0x82,	/* 0x1c: pllr=1,sscs=0,mpdv=0b00,tun[22-23]=0b10 */
+	0xbe,	/* 0x1d: tun[24-31]=0xbe */
+	0x00,
+	0x00
+};
+
+static int update_boot_eeprom(cmd_tbl_t* cmdtp, int flag, int argc, char *argv[])
+{
+	ulong len = 0x20;
+	uchar chip = CFG_I2C_EEPROM_ADDR;
+	uchar *pbuf;
+	uchar base;
+	int i;
+
+	if ((*(volatile char*)CPLD_REG0_ADDR & PCI_M66EN) != PCI_M66EN) {
+		pbuf = buf_33;
+		base = 0x00;
+	} else {
+		pbuf = buf_66;
+		base = 0x40;
+	}
+
+	for (i = 0; i< len; i++, base++) {
+		if (i2c_write(chip, base, 1, &pbuf[i],1)!= 0) {
+			printf("i2c_write fail\n");
+			return 1;
+		}
+		udelay(11000);
+	}
+
+	return 0;
+}
+
+U_BOOT_CMD (
+	update_boot_eeprom, 1, 1, update_boot_eeprom,
+	"update_boot_eeprom  - update boot eeprom content\n",
+	NULL
+	);
diff --git a/common/soft_spi.c b/common/soft_spi.c
index 00a57de8aa..e4250616c2 100644
--- a/common/soft_spi.c
+++ b/common/soft_spi.c
@@ -79,7 +79,9 @@ void spi_init (void)
  */
 int  spi_xfer(spi_chipsel_type chipsel, int bitlen, uchar *dout, uchar *din)
 {
+#ifdef CFG_IMMR
 	volatile immap_t *immr = (immap_t *)CFG_IMMR;
+#endif
 	uchar tmpdin  = 0;
 	uchar tmpdout = 0;
 	int   j;
diff --git a/cpu/ppc4xx/gpio.c b/cpu/ppc4xx/gpio.c
index 0d0e273fc4..50f2fdf113 100644
--- a/cpu/ppc4xx/gpio.c
+++ b/cpu/ppc4xx/gpio.c
@@ -186,6 +186,7 @@ void gpio_set_chip_configuration(void)
 						out32(GPIO0_TCR, reg);
 					}
 
+#ifdef GPIO1
 					if (gpio_core == GPIO1) {
 						/*
 						 * Setup output value
@@ -203,6 +204,7 @@ void gpio_set_chip_configuration(void)
 						reg = in32(GPIO1_TCR) | (0x80000000 >> (i));
 						out32(GPIO1_TCR, reg);
 					}
+#endif /* GPIO1 */
 
 					reg = in32(GPIO_OS(core_add+offs))
 						& ~(GPIO_MASK >> (j*2));
diff --git a/cpu/ppc4xx/sdram.c b/cpu/ppc4xx/sdram.c
index d520cd3ff4..3a0ca17d9f 100644
--- a/cpu/ppc4xx/sdram.c
+++ b/cpu/ppc4xx/sdram.c
@@ -209,8 +209,17 @@ void sdram_init(void)
 
 		if (get_ram_size(0, mb0cf[i].size) == mb0cf[i].size) {
 			/*
-			 * OK, size detected -> all done
+			 * OK, size detected.  Enable second bank if
+			 * defined (assumes same type as bank 0)
 			 */
+#ifdef CONFIG_SDRAM_BANK1
+			u32 b1cr = mb0cf[i].size | mb0cf[i].reg;
+
+			mtsdram0(mem_mcopt1, 0x00000000);
+			mtsdram0(mem_mb1cf, b1cr); /* SDRAM0_B1CR */
+			mtsdram0(mem_mcopt1, 0x80800000);
+			udelay(10000);
+#endif
 			return;
 		}
 	}
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index 8ecaaea4d9..18d3445609 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -1869,6 +1869,11 @@ ppc405ep_init:
 	ori	r3,r3,CFG_EBC_PB4CR@l
 	mtdcr	ebccfgd,r3
 #endif
+#ifdef CONFIG_TAIHU
+	mfdcr	r4, CPC0_BOOT
+	andi.	r5, r4, CPC0_BOOT_SEP@l
+	bne	strap_0			/* serial eeprom present */
+#endif
 
 #ifndef CFG_CPC0_PCI
 	li	r3,CPC0_PCI_HOST_CFG_EN
@@ -1886,12 +1891,16 @@ ppc405ep_init:
 	beq	..pci_cfg_set		  /* if not set, then bypass reg write*/
 #endif
 	ori	r3,r3,CPC0_PCI_ARBIT_EN
+#ifdef CONFIG_TAIHU
+	ori	r3,r3,CPC0_PCI_SPE
+#endif
 #else /* CFG_CPC0_PCI */
 	li	r3,CFG_CPC0_PCI
 #endif /* CFG_CPC0_PCI */
 ..pci_cfg_set:
 	mtdcr	CPC0_PCI, r3		 /* Enable internal arbiter*/
 
+strap_0:
 	/*
 	!-----------------------------------------------------------------------
 	! Check to see if chip is in bypass mode.
@@ -1947,11 +1956,35 @@ ppc405ep_init:
 ..no_pllset:
 #endif /* CONFIG_BUBINGA */
 
+#ifdef CONFIG_TAIHU
+	mfdcr	r4, CPC0_BOOT
+	andi.	r5, r4, CPC0_BOOT_SEP@l
+	bne	strap_1			/* serial eeprom present */
+	addis	r5,0,CPLD_REG0_ADDR@h
+	ori	r5,r5,CPLD_REG0_ADDR@l
+	andi.	r5, r5, 0x10
+	bne	_pci_66mhz
+#endif /* CONFIG_TAIHU */
+
 	addis	r3,0,PLLMR0_DEFAULT@h	    /* PLLMR0 default value */
 	ori	r3,r3,PLLMR0_DEFAULT@l	   /* */
 	addis	r4,0,PLLMR1_DEFAULT@h	    /* PLLMR1 default value */
 	ori	r4,r4,PLLMR1_DEFAULT@l	   /* */
 
+#ifdef CONFIG_TAIHU
+	b	1f
+_pci_66mhz:
+	addis	r3,0,PLLMR0_DEFAULT_PCI66@h
+	ori	r3,r3,PLLMR0_DEFAULT_PCI66@l
+	addis	r4,0,PLLMR1_DEFAULT_PCI66@h
+	ori	r4,r4,PLLMR1_DEFAULT_PCI66@l
+	b	1f
+strap_1:
+	mfdcr	r3, CPC0_PLLMR0
+	mfdcr	r4, CPC0_PLLMR1
+1:
+#endif /* CONFIG_TAIHU */
+
 	b	pll_write		  /* Write the CPC0_PLLMR with new value */
 
 pll_done:
diff --git a/dtt/Makefile b/dtt/Makefile
index e6cb128f3d..c6a670af17 100644
--- a/dtt/Makefile
+++ b/dtt/Makefile
@@ -30,7 +30,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)libdtt.a
 
-COBJS	= lm75.o ds1621.o adm1021.o lm81.o
+COBJS	= lm75.o ds1621.o adm1021.o lm81.o ds1775.o
 
 SRCS	:= $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
diff --git a/dtt/ds1775.c b/dtt/ds1775.c
new file mode 100644
index 0000000000..e44cee3279
--- /dev/null
+++ b/dtt/ds1775.c
@@ -0,0 +1,156 @@
+/*
+ * 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
+ */
+
+/*
+ * Dallas Semiconductor's DS1775 Digital Thermometer and Thermostat
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_DTT_DS1775
+#include <i2c.h>
+#include <dtt.h>
+
+#define DTT_I2C_DEV_CODE 0x49		/* Dallas Semi's DS1775 device code */
+
+int dtt_read(int sensor, int reg)
+{
+	int dlen;
+	uchar data[2];
+
+	/*
+	 * Calculate sensor address and command
+	 */
+	sensor = DTT_I2C_DEV_CODE + (sensor & 0x07); /* Calculate addr of ds1775 */
+
+	/*
+	 * Prepare to handle 2 byte result
+	 */
+	if ((reg == DTT_READ_TEMP) ||
+	    (reg == DTT_TEMP_OS) || (reg == DTT_TEMP_HYST))
+		dlen = 2;
+	else
+		dlen = 1;
+
+	/*
+	 * Now try to read the register
+	 */
+	if (i2c_read(sensor, reg, 1, data, dlen) != 0)
+		return 1;
+
+	/*
+	 * Handle 2 byte result
+	 */
+	if (dlen == 2)
+		return ((int)((short)data[1] + (((short)data[0]) << 8)));
+
+	return (int) data[0];
+}
+
+
+int dtt_write(int sensor, int reg, int val)
+{
+	int dlen;
+	uchar data[2];
+
+	/*
+	 * Calculate sensor address and register
+	 */
+	sensor = DTT_I2C_DEV_CODE + (sensor & 0x07);
+
+	/*
+	 * Handle various data sizes
+	 */
+	if ((reg == DTT_READ_TEMP) ||
+	    (reg == DTT_TEMP_OS) || (reg == DTT_TEMP_HYST)) {
+		dlen = 2;
+		data[0] = (char)((val >> 8) & 0xff); /* MSB first */
+		data[1] = (char)(val & 0xff);
+	} else {
+		dlen = 1;
+		data[0] = (char)(val & 0xff);
+	}
+
+	/*
+	 * Write value to device
+	 */
+	if (i2c_write(sensor, reg, 1, data, dlen) != 0)
+		return 1;
+
+	return 0;
+}
+
+
+static int _dtt_init(int sensor)
+{
+	int val;
+
+	/*
+	 * Setup High Temp
+	 */
+	val = ((CFG_DTT_MAX_TEMP * 2) << 7) & 0xff80;
+	if (dtt_write(sensor, DTT_TEMP_OS, val) != 0)
+		return 1;
+	udelay(50000);			/* Max 50ms */
+
+	/*
+	 * Setup Low Temp - hysteresis
+	 */
+	val = (((CFG_DTT_MAX_TEMP - CFG_DTT_HYSTERESIS) * 2) << 7) & 0xff80;
+	if (dtt_write(sensor, DTT_TEMP_HYST, val) != 0)
+		return 1;
+	udelay(50000);			/* Max 50ms */
+
+	/*
+	 * Setup configuraton register
+	 *
+	 * Fault Tolerance limits 4, Thermometer resolution bits is 9,
+	 * Polarity = Active Low,continuous conversion mode, Thermostat
+	 * mode is interrupt mode
+	 */
+	val = 0xa;
+	if (dtt_write(sensor, DTT_CONFIG, val) != 0)
+		return 1;
+	udelay(50000);			/* Max 50ms */
+
+	return 0;
+}
+
+
+int dtt_init (void)
+{
+	int i;
+	unsigned char sensors[] = CONFIG_DTT_SENSORS;
+
+	for (i = 0; i < sizeof(sensors); i++) {
+		if (_dtt_init(sensors[i]) != 0)
+			printf("DTT%d:  FAILED\n", i+1);
+		else
+			printf("DTT%d:  %i C\n", i+1, dtt_get_temp(sensors[i]));
+	}
+
+	return (0);
+}
+
+
+int dtt_get_temp(int sensor)
+{
+	return (dtt_read(sensor, DTT_READ_TEMP) / 256);
+}
+
+
+#endif /* CONFIG_DTT_DS1775 */
diff --git a/include/configs/taihu.h b/include/configs/taihu.h
new file mode 100644
index 0000000000..61814a8096
--- /dev/null
+++ b/include/configs/taihu.h
@@ -0,0 +1,473 @@
+/*
+ * (C) Copyright 2000-2005
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2005-2007
+ * Beijing UD Technology Co., Ltd., taihusupport@amcc.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
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+
+#define CONFIG_405EP		1	/* this is a PPC405 CPU */
+#define CONFIG_4xx		1	/*  member of PPC4xx family */
+#define CONFIG_TAIHU	        1	/*  on a taihu board */
+
+#define CONFIG_BOARD_EARLY_INIT_F 1	/* call board_early_init_f */
+
+#define CONFIG_SYS_CLK_FREQ     33000000 /* external frequency to pll   */
+
+#define CONFIG_NO_SERIAL_EEPROM
+
+/*----------------------------------------------------------------------------*/
+#ifdef CONFIG_NO_SERIAL_EEPROM
+
+/*
+!-------------------------------------------------------------------------------
+! PLL settings for 333MHz CPU, 111MHz PLB/SDRAM, 55MHz EBC, 33MHz PCI,
+! assuming a 33MHz input clock to the 405EP from the C9531.
+!-------------------------------------------------------------------------------
+*/
+#define PLLMR0_333_111_55_37 (PLL_CPUDIV_1 | PLL_PLBDIV_3 |  \
+			      PLL_OPBDIV_2 | PLL_EXTBUSDIV_2 |  \
+			      PLL_MALDIV_1 | PLL_PCIDIV_3)
+#define PLLMR1_333_111_55_37 (PLL_FBKDIV_10  |  \
+			      PLL_FWDDIVA_3 | PLL_FWDDIVB_3 |  \
+			      PLL_TUNE_15_M_40 | PLL_TUNE_VCO_HI)
+#define PLLMR0_333_111_55_111 (PLL_CPUDIV_1 | PLL_PLBDIV_3 |  \
+			       PLL_OPBDIV_2 | PLL_EXTBUSDIV_2 |  \
+			       PLL_MALDIV_1 | PLL_PCIDIV_1)
+#define PLLMR1_333_111_55_111 (PLL_FBKDIV_10  |  \
+			       PLL_FWDDIVA_3 | PLL_FWDDIVB_3 |  \
+			       PLL_TUNE_15_M_40 | PLL_TUNE_VCO_HI)
+
+#define PLLMR0_DEFAULT		PLLMR0_333_111_55_37
+#define PLLMR1_DEFAULT		PLLMR1_333_111_55_37
+#define PLLMR0_DEFAULT_PCI66	PLLMR0_333_111_55_111
+#define PLLMR1_DEFAULT_PCI66	PLLMR1_333_111_55_111
+
+#endif
+/*----------------------------------------------------------------------------*/
+
+#define CFG_ENV_IS_IN_FLASH     1	/* use FLASH for environment vars */
+
+#define CONFIG_ENV_OVERWRITE 1
+#define CONFIG_PREBOOT	"echo;"	\
+	"echo Type \"run flash_nfs\" to mount root filesystem over NFS;" \
+	"echo"
+
+#undef	CONFIG_BOOTARGS
+#define CONFIG_EXTRA_ENV_SETTINGS					\
+	"bootfile=/tftpboot/taihu/uImage\0"				\
+	"rootpath=/opt/eldk/ppc_4xx\0"					\
+	"netdev=eth0\0"							\
+	"nfsargs=setenv bootargs root=/dev/nfs rw "			\
+		"nfsroot=${serverip}:${rootpath}\0"			\
+	"ramargs=setenv bootargs root=/dev/ram rw\0"			\
+	"addip=setenv bootargs ${bootargs} "				\
+		"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}"	\
+		":${hostname}:${netdev}:off panic=1\0"			\
+	"addtty=setenv bootargs ${bootargs} console=ttyS0,${baudrate}\0"\
+	"flash_nfs=run nfsargs addip addtty;"				\
+		"bootm ${kernel_addr}\0"				\
+	"flash_self=run ramargs addip addtty;"				\
+		"bootm ${kernel_addr} ${ramdisk_addr}\0"		\
+	"net_nfs=tftp 200000 ${bootfile};run nfsargs addip addtty;"     \
+	        "bootm\0"						\
+	"kernel_addr=FC000000\0"					\
+	"ramdisk_addr=FC180000\0"					\
+	"load=tftp 200000 /tftpboot/taihu/u-boot.bin\0"			\
+	"update=protect off FFFC0000 FFFFFFFF;era FFFC0000 FFFFFFFF;"	\
+		"cp.b 200000 FFFC0000 40000\0"				\
+	"upd=run load;run update\0"					\
+	""
+#define CONFIG_BOOTCOMMAND	"run flash_self"
+
+#if 0
+#define CONFIG_BOOTDELAY	-1	/* autoboot disabled		*/
+#else
+#define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds	*/
+#endif
+
+#define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/
+#define CFG_LOADS_BAUD_CHANGE	1	/* allow baudrate change	*/
+
+#define CONFIG_MII		1	/* MII PHY management		*/
+#define CONFIG_PHY_ADDR		0x14	/* PHY address			*/
+#define CONFIG_HAS_ETH1
+#define CONFIG_PHY1_ADDR	0x10	/* EMAC1 PHY address		*/
+#define CONFIG_NET_MULTI	1
+#define CFG_RX_ETH_BUFFER	16	/* Number of ethernet rx buffers & descriptors */
+#define CONFIG_PHY_RESET	1
+
+#define CONFIG_COMMANDS	       (CONFIG_CMD_DFL	| \
+				CFG_CMD_ASKENV	| \
+				CFG_CMD_CACHE	| \
+				CFG_CMD_DHCP	| \
+				CFG_CMD_EEPROM	| \
+				CFG_CMD_ELF	| \
+				CFG_CMD_I2C	| \
+				CFG_CMD_SPI	| \
+				CFG_CMD_IRQ	| \
+				CFG_CMD_MII	| \
+				CFG_CMD_NET	| \
+				CFG_CMD_PCI	| \
+				CFG_CMD_PING	| \
+				CFG_CMD_REGINFO	| \
+				CFG_CMD_SDRAM	)
+
+/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
+#include <cmd_confdefs.h>
+
+#undef CONFIG_WATCHDOG			/* watchdog disabled */
+
+#undef CONFIG_SPD_EEPROM		/* use SPD EEPROM for setup */
+#define CFG_SDRAM_SIZE_PER_BANK 0x04000000 /* 64MB */
+#define CFG_SDRAM_BANKS	        2
+
+/*
+ * SDRAM configuration (please see cpu/ppc/sdram.[ch])
+ */
+#define CONFIG_SDRAM_BANK0	1	/* init onboard SDRAM bank 0 */
+#define CONFIG_SDRAM_BANK1	1	/* init onboard SDRAM bank 1 */
+
+/* SDRAM timings used in datasheet */
+#define CFG_SDRAM_CL            3	/* CAS latency */
+#define CFG_SDRAM_tRP           20	/* PRECHARGE command period */
+#define CFG_SDRAM_tRC           66	/* ACTIVE-to-ACTIVE command period */
+#define CFG_SDRAM_tRCD          20	/* ACTIVE-to-READ delay */
+#define CFG_SDRAM_tRFC		66	/* Auto refresh period */
+
+/*
+ * 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  0x0400000	/* memtest works on	*/
+#define CFG_MEMTEST_END	   0x0C00000	/* 4 ... 12 MB in DRAM	*/
+
+/*
+ * If CFG_EXT_SERIAL_CLOCK, then the UART divisor is 1.
+ * If CFG_405_UART_ERRATA_59, then UART divisor is 31.
+ * Otherwise, UART divisor is determined by CPU Clock and CFG_BASE_BAUD value.
+ * The Linux BASE_BAUD define should match this configuration.
+ *    baseBaud = cpuClock/(uartDivisor*16)
+ * If CFG_405_UART_ERRATA_59 and 200MHz CPU clock,
+ * set Linux BASE_BAUD to 403200.
+ */
+#undef	CONFIG_SERIAL_SOFTWARE_FIFO
+#undef  CFG_EXT_SERIAL_CLOCK           /* external serial clock */
+#undef  CFG_405_UART_ERRATA_59         /* 405GP/CR Rev. D silicon */
+#define CFG_BASE_BAUD		691200
+
+#define CONFIG_BAUDRATE		115200
+
+#define CONFIG_UART1_CONSOLE	1
+
+
+/* The following table includes the supported baudrates */
+#define CFG_BAUDRATE_TABLE  \
+    {300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400}
+
+#define CFG_LOAD_ADDR	    0x100000	/* default load address */
+#define CFG_EXTBDINFO		1	/* To use extended board_into (bd_t) */
+
+#define CFG_HZ			1000	/* decrementer freq: 1 ms ticks	*/
+
+#define CONFIG_AUTO_COMPLETE	1       /* add autocompletion support   */
+#define CONFIG_LOOPW            1       /* enable loopw command         */
+#define CONFIG_ZERO_BOOTDELAY_CHECK	/* check for keypress on bootdelay==0 */
+#define CONFIG_VERSION_VARIABLE 1	/* include version env variable */
+
+/*-----------------------------------------------------------------------
+ * I2C stuff
+ *-----------------------------------------------------------------------
+ */
+#define CONFIG_HARD_I2C		1	/* I2C with hardware support	*/
+#undef  CONFIG_SOFT_I2C			/* I2C bit-banged		*/
+#define CFG_I2C_SPEED		400000	/* I2C speed and slave address	*/
+#define CFG_I2C_SLAVE		0x7F
+
+#define CFG_I2C_NOPROBES	{ 0x69 } /* avoid iprobe hangup (why?) */
+#define CFG_EEPROM_PAGE_WRITE_DELAY_MS	6 /* 24C02 requires 5ms delay */
+
+#if (CONFIG_COMMANDS & CFG_CMD_EEPROM)
+#define CFG_I2C_EEPROM_ADDR	0x50	/* I2C boot EEPROM (24C02W)	*/
+#define CFG_I2C_EEPROM_ADDR_LEN	1	/* Bytes of address		*/
+#endif
+
+
+#define CONFIG_SOFT_SPI
+#define SPI_SCL  spi_scl
+#define SPI_SDA  spi_sda
+#define SPI_READ spi_read()
+#define SPI_DELAY udelay(2)
+#ifndef __ASSEMBLY__
+void spi_scl(int);
+void spi_sda(int);
+unsigned char spi_read(void);
+#endif
+
+/* standard dtt sensor configuration */
+#define CONFIG_DTT_DS1775	1
+#define CONFIG_DTT_SENSORS	{ 0 }
+
+/*-----------------------------------------------------------------------
+ * PCI stuff
+ *-----------------------------------------------------------------------
+ */
+#define PCI_HOST_ADAPTER 0		/* configure ar pci adapter    */
+#define PCI_HOST_FORCE   1		/* configure as pci host       */
+#define PCI_HOST_AUTO    2		/* detected via arbiter enable */
+
+#define CONFIG_PCI			/* include pci support	       */
+#define CONFIG_PCI_HOST	PCI_HOST_FORCE  /* select pci host function    */
+#define CONFIG_PCI_PNP			/* do pci plug-and-play        */
+					/* resource configuration      */
+#define CONFIG_PCI_SCAN_SHOW            /* show pci devices on startup */
+
+#define CFG_PCI_SUBSYS_VENDORID 0x10e8	/* AMCC */
+#define CFG_PCI_SUBSYS_DEVICEID 0xcafe	/* Whatever */
+#define CFG_PCI_CLASSCODE       0x0600  /* PCI Class Code: bridge/host */
+#define CFG_PCI_PTM1LA	    0x00000000	/* point to sdram              */
+#define CFG_PCI_PTM1MS      0x80000001	/* 2GB, enable hard-wired to 1 */
+#define CFG_PCI_PTM1PCI     0x00000000	/* Host: use this pci address  */
+#define CFG_PCI_PTM2LA      0x00000000	/* disabled                    */
+#define CFG_PCI_PTM2MS	    0x00000000	/* disabled                    */
+#define CFG_PCI_PTM2PCI     0x04000000	/* Host: use this pci address  */
+#define CONFIG_EEPRO100		1
+
+/*-----------------------------------------------------------------------
+ * 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		0xFFE00000
+#define CFG_MONITOR_LEN		(256 * 1024)	/* Reserve 256 kB for Monitor	*/
+#define CFG_MALLOC_LEN		(128 * 1024)	/* Reserve 128 kB for malloc()	*/
+#define CFG_MONITOR_BASE	(-CFG_MONITOR_LEN)
+
+/*
+ * 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	2	/* max number of memory banks		*/
+#define CFG_MAX_FLASH_SECT	256	/* 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_FLASH_ADDR0         0x555
+#define CFG_FLASH_ADDR1         0x2aa
+#define CFG_FLASH_WORD_SIZE     unsigned short
+
+#ifdef CFG_ENV_IS_IN_FLASH
+#define CFG_ENV_SECT_SIZE	0x10000	/* size of one complete sector	*/
+#define CFG_ENV_ADDR		(CFG_MONITOR_BASE-CFG_ENV_SECT_SIZE)
+#define CFG_ENV_SIZE		0x4000	/* Total Size of Environment Sector	*/
+
+/* Address and size of Redundant Environment Sector	*/
+#define CFG_ENV_ADDR_REDUND	(CFG_ENV_ADDR-CFG_ENV_SECT_SIZE)
+#define CFG_ENV_SIZE_REDUND	(CFG_ENV_SIZE)
+#endif /* CFG_ENV_IS_IN_FLASH */
+
+/*-----------------------------------------------------------------------
+ * NVRAM organization
+ */
+#define CFG_NVRAM_BASE_ADDR	0xf0000000	/* NVRAM base address */
+#define CFG_NVRAM_SIZE		0x1ff8		/* NVRAM size */
+
+#ifdef CFG_ENV_IS_IN_NVRAM
+#define CFG_ENV_SIZE		0x0ff8		/* Size of Environment vars */
+#define CFG_ENV_ADDR		\
+	(CFG_NVRAM_BASE_ADDR+CFG_NVRAM_SIZE-CFG_ENV_SIZE)	/* Env*/
+#endif
+
+/*-----------------------------------------------------------------------
+ * PPC405 GPIO Configuration
+ */
+#define CFG_440_GPIO_TABLE { /*				GPIO	Alternate1		*/	\
+{												\
+/* GPIO Core 0 */										\
+{ GPIO_BASE, GPIO_OUT, GPIO_SEL,  GPIO_OUT_NO_CHG }, /* GPIO0	PerBLast    SPI CS	*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO1	TS1E			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO2	TS2E			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO3	TS1O			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO4	TS2O			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO5	TS3			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO6	TS4			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO7	TS5			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO8	TS6			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO9	TrcClk			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO10	PerCS1			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO11	PerCS2			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO12	PerCS3			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO13	PerCS4			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_SEL,  GPIO_OUT_NO_CHG }, /* GPIO14	PerAddr03   SPI SCLK	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_SEL,  GPIO_OUT_NO_CHG }, /* GPIO15	PerAddr04   SPI DI	*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_SEL,  GPIO_OUT_NO_CHG }, /* GPIO16	PerAddr05   SPI DO	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO17	IRQ0	    PCI INTA	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO18	IRQ1	    PCI INTB	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO19	IRQ2	    PCI INTC	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO20	IRQ3	    PCI INTD	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO21	IRQ4	    USB		*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO22	IRQ5	    EBC		*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_SEL,  GPIO_OUT_NO_CHG }, /* GPIO23	IRQ6	    unused	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO24	UART0_DCD   UART1	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO25	UART0_DSR		*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO26	UART0_RI		*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO27	UART0_DTR		*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO28	UART1_Rx    UART0 	*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO29	UART1_Tx		*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_SEL,  GPIO_OUT_NO_CHG }, /* GPIO30	RejectPkt0  User LED1	*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_SEL,  GPIO_OUT_NO_CHG }, /* GPIO31	RejectPkt1  User LED2	*/	\
+}												\
+}
+
+/*-----------------------------------------------------------------------
+ * Cache Configuration
+ */
+#define CFG_DCACHE_SIZE		16384	/* For IBM 405EP CPU */
+#define CFG_CACHELINE_SIZE	32
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#define CFG_CACHELINE_SHIFT	5	/* log base 2 of the above value */
+#endif
+
+/*
+ * Init Memory Controller:
+ *
+ * BR0/1 and OR0/1 (FLASH)
+ */
+
+#define FLASH_BASE0_PRELIM CFG_FLASH_BASE /* FLASH bank #0 */
+#define FLASH_BASE1_PRELIM  0xFC000000	/* FLASH bank #1 */
+
+/*-----------------------------------------------------------------------
+ * Definitions for initial stack pointer and data area (in data cache)
+ */
+/* use on chip memory (OCM) for temperary stack until sdram is tested */
+#define CFG_TEMP_STACK_OCM        1
+
+/* On Chip Memory location */
+#define CFG_OCM_DATA_ADDR	0xF8000000
+#define CFG_OCM_DATA_SIZE	0x1000
+#define CFG_INIT_RAM_ADDR	CFG_OCM_DATA_ADDR /* inside of SDRAM		*/
+#define CFG_INIT_RAM_END	CFG_OCM_DATA_SIZE /* End of used area in RAM	*/
+
+#define CFG_GBL_DATA_SIZE      128  /* 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
+
+/*-----------------------------------------------------------------------
+ * External Bus Controller (EBC) Setup
+ */
+
+/* Memory Bank 0 (Flash/SRAM) initialization */
+#define CFG_EBC_PB0AP           0x03815600
+#define CFG_EBC_PB0CR           0xFFE3A000  /* BAS=0xFFE,BS=2MB,BU=R/W,BW=16bit */
+
+/* Memory Bank 1 (NVRAM/RTC) initialization */
+#define CFG_EBC_PB1AP           0x05815600
+#define CFG_EBC_PB1CR           0xFC0BA000  /* BAS=0xFc0,BS=32MB,BU=R/W,BW=16bit */
+
+/* Memory Bank 2 (USB device) initialization */
+#define CFG_EBC_PB2AP           0x03016600
+#define CFG_EBC_PB2CR           0x50018000 /* BAS=0x500,BS=1MB,BU=R/W,BW=8bit */
+
+/* Memory Bank 3 (LCM and D-flip-flop) initialization */
+#define CFG_EBC_PB3AP           0x158FF600
+#define CFG_EBC_PB3CR           0x50118000 /* BAS=0x501,BS=1MB,BU=R/W,BW=8bit */
+
+/* Memory Bank 4 (not install) initialization */
+#define CFG_EBC_PB4AP           0x158FF600
+#define CFG_EBC_PB4CR           0x5021A000
+
+/*-----------------------------------------------------------------------
+ * Definitions for GPIO setup (PPC405EP specific)
+ *
+ * GPIO0[0]     - External Bus Controller BLAST output
+ * GPIO0[1-9]   - Instruction trace outputs
+ * GPIO0[10-13] - External Bus Controller CS_1 - CS_4 outputs
+ * GPIO0[14-16] - External Bus Controller ABUS3-ABUS5 outputs
+ * GPIO0[17-23] - External Interrupts IRQ0 - IRQ6 inputs
+ * GPIO0[24-27] - UART0 control signal inputs/outputs
+ * GPIO0[28-29] - UART1 data signal input/output
+ * GPIO0[30-31] - EMAC0 and EMAC1 reject packet inputs
+ */
+#define CFG_GPIO0_OSRH	0x15555550	/* output select high/low */
+#define CFG_GPIO0_OSRL	0x00000110
+#define CFG_GPIO0_ISR1H	0x00000001	/* input select high/low */
+#define CFG_GPIO0_ISR1L	0x15545440
+#define CFG_GPIO0_TSRH	0x00000000	/* three-state select high/low */
+#define CFG_GPIO0_TSRL	0x00000000
+#define CFG_GPIO0_TCR	0xFFFE8117	/* three-state control */
+#define CFG_GPIO0_ODR	0x00000000	/* open drain */
+
+#define GPIO0		0		/* GPIO controller 0 */
+
+/* the GPIO macros in include/ppc405.h for High/Low registers are backwards */
+
+#define GPIOx_OSL	(GPIO0_OSRH-GPIO_BASE)
+#define GPIOx_TSL	(GPIO0_TSRH-GPIO_BASE)
+#define GPIOx_IS1L	(GPIO0_ISR1H-GPIO_BASE)
+#define GPIOx_IS2L	(GPIO0_ISR1H-GPIO_BASE)
+#define GPIOx_IS3L	(GPIO0_ISR1H-GPIO_BASE)
+
+#define GPIO_OS(x)	(x+GPIOx_OSL)	/* GPIO output select */
+#define GPIO_TS(x)	(x+GPIOx_TSL)	/* GPIO three-state select */
+#define GPIO_IS1(x)	(x+GPIOx_IS1L)	/* GPIO input select */
+#define GPIO_IS2(x)	(x+GPIOx_IS1L)
+#define GPIO_IS3(x)	(x+GPIOx_IS1L)
+
+#define CPLD_REG0_ADDR	0x50100000
+#define CPLD_REG1_ADDR	0x50100001
+/*
+ * Internal Definitions
+ *
+ * Boot Flags
+ */
+#define BOOTFLAG_COLD	0x01		/* Normal Power-On: Boot from FLASH */
+#define BOOTFLAG_WARM	0x02		/* Software reboot */
+
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#define CONFIG_KGDB_BAUDRATE	230400	/* speed to run kgdb serial port */
+#define CONFIG_KGDB_SER_INDEX	2	/* which serial port to use */
+#endif
+
+#endif	/* __CONFIG_H */
diff --git a/include/dtt.h b/include/dtt.h
index 842a761c90..2e8c690158 100644
--- a/include/dtt.h
+++ b/include/dtt.h
@@ -29,6 +29,7 @@
 
 #if defined(CONFIG_DTT_LM75) || \
     defined(CONFIG_DTT_DS1621) || \
+    defined(CONFIG_DTT_DS1775) || \
     defined(CONFIG_DTT_LM81) || \
     defined(CONFIG_DTT_ADM1021)
 
@@ -78,6 +79,13 @@ extern int dtt_get_temp(int sensor);
 #define DTT_CONFIG		0xAC
 #endif
 
+#if defined(CONFIG_DTT_DS1775)
+#define DTT_READ_TEMP		0x0
+#define DTT_CONFIG		0x1
+#define DTT_TEMP_HYST		0x2
+#define DTT_TEMP_OS		0x3
+#endif
+
 #if defined(CONFIG_DTT_ADM1021)
 #define DTT_READ_LOC_VALUE	0x00
 #define DTT_READ_REM_VALUE	0x01