[PATCH] Add support for AMCC Taishan PPC440GX eval board

Signed-off-by: Stefan Roese <sr@denx.de>

8 files changed, 1374 insertions, 0 deletions

diff --git a/board/amcc/taishan/Makefile b/board/amcc/taishan/Makefile
new file mode 100644
index 000000000..462af001b
--- /dev/null
+++ b/board/amcc/taishan/Makefile
@@ -0,0 +1,51 @@
+#
+# (C) Copyright 2007
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).a
+
+COBJS	= $(BOARD).o lcd.o update.o showinfo.o
+SOBJS	= init.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/amcc/taishan/config.mk b/board/amcc/taishan/config.mk
new file mode 100644
index 000000000..4eefff21d
--- /dev/null
+++ b/board/amcc/taishan/config.mk
@@ -0,0 +1,44 @@
+#
+# (C) Copyright 2004
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+#
+# AMCC 440GX Reference Platform (Taishan) board
+#
+
+#TEXT_BASE = 0xFFFE0000
+
+ifeq ($(ramsym),1)
+TEXT_BASE = 0x07FD0000
+else
+TEXT_BASE = 0xFFFC0000
+endif
+
+PLATFORM_CPPFLAGS += -DCONFIG_440=1
+
+ifeq ($(debug),1)
+PLATFORM_CPPFLAGS += -DDEBUG
+endif
+
+ifeq ($(dbcr),1)
+PLATFORM_CPPFLAGS += -DCFG_INIT_DBCR=0x8cff0000
+endif
diff --git a/board/amcc/taishan/init.S b/board/amcc/taishan/init.S
new file mode 100644
index 000000000..8db043ba1
--- /dev/null
+++ b/board/amcc/taishan/init.S
@@ -0,0 +1,97 @@
+/*
+ * (C) Copyright 2007
+ * Stefan Roese, DENX Software Engineering, sr@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 <ppc_asm.tmpl>
+#include <config.h>
+
+/* General */
+#define TLB_VALID   0x00000200
+#define _256M       0x10000000
+
+/* Supported page sizes */
+
+#define SZ_1K	    0x00000000
+#define SZ_4K	    0x00000010
+#define SZ_16K	    0x00000020
+#define SZ_64K	    0x00000030
+#define SZ_256K	    0x00000040
+#define SZ_1M	    0x00000050
+#define SZ_8M       0x00000060
+#define SZ_16M	    0x00000070
+#define SZ_256M	    0x00000090
+
+/* Storage attributes */
+#define SA_W	    0x00000800	    /* Write-through */
+#define SA_I	    0x00000400	    /* Caching inhibited */
+#define SA_M	    0x00000200	    /* Memory coherence */
+#define SA_G	    0x00000100	    /* Guarded */
+#define SA_E	    0x00000080	    /* Endian */
+
+/* Access control */
+#define AC_X	    0x00000024	    /* Execute */
+#define AC_W	    0x00000012	    /* Write */
+#define AC_R	    0x00000009	    /* Read */
+
+/* Some handy macros */
+
+#define EPN(e)		((e) & 0xfffffc00)
+#define TLB0(epn,sz)	( (EPN((epn)) | (sz) | TLB_VALID ) )
+#define TLB1(rpn,erpn)	( ((rpn)&0xfffffc00) | (erpn) )
+#define TLB2(a)		( (a)&0x00000fbf )
+
+#define tlbtab_start\
+	mflr    r1  ;\
+	bl 0f	    ;
+
+#define tlbtab_end\
+	.long 0, 0, 0	;   \
+0:	mflr    r0	;   \
+	mtlr    r1	;   \
+	blr		;
+
+#define tlbentry(epn,sz,rpn,erpn,attr)\
+	.long TLB0(epn,sz),TLB1(rpn,erpn),TLB2(attr)
+
+/**************************************************************************
+ * TLB TABLE
+ *
+ * This table is used by the cpu boot code to setup the initial tlb
+ * entries. Rather than make broad assumptions in the cpu source tree,
+ * this table lets each board set things up however they like.
+ *
+ *  Pointer to the table is returned in r1
+ *
+ *************************************************************************/
+
+	.section .bootpg,"ax"
+	.globl tlbtab
+
+tlbtab:
+	tlbtab_start
+	tlbentry( 0xf0000000, SZ_256M, 0xf0000000, 1, AC_R|AC_W|AC_X|SA_G|SA_I)
+	tlbentry( CFG_PERIPHERAL_BASE, SZ_256M, 0x40000000, 1, AC_R|AC_W|SA_G|SA_I)
+	tlbentry( CFG_ISRAM_BASE, SZ_256K, 0x80000000, 0, AC_R|AC_W|AC_X )
+	tlbentry( CFG_SDRAM_BASE, SZ_256M, 0x00000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I )
+	tlbentry( CFG_PCI_BASE, SZ_256M, 0x00000000, 2, AC_R|AC_W|SA_G|SA_I )
+	tlbentry( CFG_PCI_MEMBASE, SZ_256M, 0x00000000, 3, AC_R|AC_W|SA_G|SA_I )
+	tlbtab_end
diff --git a/board/amcc/taishan/lcd.c b/board/amcc/taishan/lcd.c
new file mode 100644
index 000000000..aebddb4b1
--- /dev/null
+++ b/board/amcc/taishan/lcd.c
@@ -0,0 +1,380 @@
+/*
+ * (C) Copyright 2007
+ * Stefan Roese, DENX Software Engineering, sr@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 <config.h>
+#include <common.h>
+#include <command.h>
+#include <i2c.h>
+#include <miiphy.h>
+
+#ifdef CONFIG_TAISHAN
+
+#define LCD_DELAY_NORMAL_US	100
+#define LCD_DELAY_NORMAL_MS	2
+#define LCD_CMD_ADDR		((volatile char *)(CFG_EBC2_LCM_BASE))
+#define LCD_DATA_ADDR		((volatile char *)(CFG_EBC2_LCM_BASE+1))
+#define LCD_BLK_CTRL		((volatile char *)(CFG_EBC1_FPGA_BASE+0x2))
+
+#define mdelay(t)	({unsigned long msec=(t); while (msec--) { udelay(1000);}})
+
+static int g_lcd_init_b = 0;
+static char *amcc_logo = "  AMCC TAISHAN  440GX EvalBoard";
+static char addr_flag = 0x80;
+
+static void lcd_bl_ctrl(char val)
+{
+	char cpld_val;
+
+	cpld_val = *LCD_BLK_CTRL;
+	*LCD_BLK_CTRL = val | cpld_val;
+}
+
+static void lcd_putc(char val)
+{
+	int i = 100;
+	char addr;
+
+	while (i--) {
+		if ((*LCD_CMD_ADDR & 0x80) != 0x80) {	/*BF = 1 ? */
+			udelay(LCD_DELAY_NORMAL_US);
+			break;
+		}
+		udelay(LCD_DELAY_NORMAL_US);
+	}
+
+	if (*LCD_CMD_ADDR & 0x80) {
+		printf("LCD is busy\n");
+		return;
+	}
+
+	addr = *LCD_CMD_ADDR;
+	udelay(LCD_DELAY_NORMAL_US);
+	if ((addr != 0) && (addr % 0x10 == 0)) {
+		addr_flag ^= 0x40;
+		*LCD_CMD_ADDR = addr_flag;
+	}
+
+	udelay(LCD_DELAY_NORMAL_US);
+	*LCD_DATA_ADDR = val;
+	udelay(LCD_DELAY_NORMAL_US);
+}
+
+static void lcd_puts(char *s)
+{
+	char *p = s;
+	int i = 100;
+
+	while (i--) {
+		if ((*LCD_CMD_ADDR & 0x80) != 0x80) {	/*BF = 1 ? */
+			udelay(LCD_DELAY_NORMAL_US);
+			break;
+		}
+		udelay(LCD_DELAY_NORMAL_US);
+	}
+
+	if (*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 ((*LCD_CMD_ADDR & 0x80) != 0x80) {	/*BF = 1 ? */
+			udelay(LCD_DELAY_NORMAL_US);
+			break;
+		}
+		udelay(LCD_DELAY_NORMAL_US);
+	}
+
+	if (*LCD_CMD_ADDR & 0x80) {
+		printf("LCD is busy\n");
+		return;
+	}
+
+	*LCD_CMD_ADDR = 0x80;
+	while (*p)
+		lcd_putc(*p++);
+}
+
+int lcd_init(void)
+{
+	if (g_lcd_init_b == 0) {
+		puts("LCD: ");
+		mdelay(100);	/* Waiting for the LCD initialize */
+
+		*LCD_CMD_ADDR = 0x38;	/*set function:8-bit,2-line,5x7 font type */
+		udelay(LCD_DELAY_NORMAL_US);
+
+		*LCD_CMD_ADDR = 0x0f;	/*set display on,cursor on,blink on */
+		udelay(LCD_DELAY_NORMAL_US);
+
+		*LCD_CMD_ADDR = 0x01;	/*display clear */
+		mdelay(LCD_DELAY_NORMAL_MS);
+
+		*LCD_CMD_ADDR = 0x06;	/*set entry */
+		udelay(LCD_DELAY_NORMAL_US);
+
+		lcd_bl_ctrl(0x02);
+		lcd_put_logo();
+
+		puts("  ready\n");
+		g_lcd_init_b = 1;
+	}
+
+	return 0;
+}
+
+static int do_lcd_test(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	lcd_init();
+	return 0;
+}
+
+static int do_lcd_clear(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	*LCD_CMD_ADDR = 0x01;
+	mdelay(LCD_DELAY_NORMAL_MS);
+	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 = *LCD_CMD_ADDR;
+	udelay(LCD_DELAY_NORMAL_US);
+	if (dir == 0x0) {
+		if (addr_flag == 0x80) {
+			if (count >= (cur_addr & 0xf)) {
+				*LCD_CMD_ADDR = 0x80;
+				udelay(LCD_DELAY_NORMAL_US);
+				count = 0;
+			}
+		} else {
+			if (count >= ((cur_addr & 0x0f) + 0x0f)) {
+				*LCD_CMD_ADDR = 0x80;
+				addr_flag = 0x80;
+				udelay(LCD_DELAY_NORMAL_US);
+				count = 0x0;
+			} else if (count >= (cur_addr & 0xf)) {
+				count -= cur_addr & 0xf;
+				*LCD_CMD_ADDR = 0x80 | 0xf;
+				addr_flag = 0x80;
+				udelay(LCD_DELAY_NORMAL_US);
+			}
+		}
+	} else {
+		if (addr_flag == 0x80) {
+			if (count >= (0x1f - (cur_addr & 0xf))) {
+				count = 0x0;
+				addr_flag = 0xc0;
+				*LCD_CMD_ADDR = 0xc0 | 0xf;
+				udelay(LCD_DELAY_NORMAL_US);
+			} else if ((count + (cur_addr & 0xf)) >= 0x0f) {
+				count = count + (cur_addr & 0xf) - 0x0f;
+				addr_flag = 0xc0;
+				*LCD_CMD_ADDR = 0xc0;
+				udelay(LCD_DELAY_NORMAL_US);
+			}
+		} else if ((count + (cur_addr & 0xf)) >= 0x0f) {
+			count = 0x0;
+			*LCD_CMD_ADDR = 0xc0 | 0xf;
+			udelay(LCD_DELAY_NORMAL_US);
+		}
+	}
+
+	while (count--) {
+		if (dir == 0) {
+			*LCD_CMD_ADDR = 0x10;
+		} else {
+			*LCD_CMD_ADDR = 0x14;
+		}
+		udelay(LCD_DELAY_NORMAL_US);
+	}
+
+	return 0;
+}
+
+U_BOOT_CMD(lcd_test, 1, 1, do_lcd_test, "lcd_test - lcd test display\n", NULL);
+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");
+
+#if 0 // test-only
+void set_phy_loopback_mode(void)
+{
+	char devemac2[32];
+	char devemac3[32];
+
+	sprintf(devemac2, "%s2", CONFIG_EMAC_DEV_NAME);
+	sprintf(devemac3, "%s3", CONFIG_EMAC_DEV_NAME);
+
+#if 0
+	unsigned short reg_short;
+
+	miiphy_read(devemac2, 0x1, 1, &reg_short);
+	if (reg_short & 0x04) {
+		/*
+		 * printf("EMAC2 link up,do nothing\n");
+		 */
+	} else {
+		udelay(1000);
+		miiphy_write(devemac2, 0x1, 0, 0x6000);
+		udelay(1000);
+		miiphy_read(devemac2, 0x1, 0, &reg_short);
+		if (reg_short != 0x6000) {
+			printf
+			    ("\nEMAC2 error set LOOPBACK mode error,reg2[0]=%x\n",
+			     reg_short);
+		}
+	}
+
+	miiphy_read(devemac3, 0x3, 1, &reg_short);
+	if (reg_short & 0x04) {
+		/*
+		 * printf("EMAC3 link up,do nothing\n");
+		 */
+	} else {
+		udelay(1000);
+		miiphy_write(devemac3, 0x3, 0, 0x6000);
+		udelay(1000);
+		miiphy_read(devemac3, 0x3, 0, &reg_short);
+		if (reg_short != 0x6000) {
+			printf
+			    ("\nEMAC3 error set LOOPBACK mode error,reg2[0]=%x\n",
+			     reg_short);
+		}
+	}
+#else
+	/* Set PHY as LOOPBACK MODE, for Linux emac initializing */
+	miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0, 0x6000);
+	udelay(1000);
+	miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0, 0x6000);
+	udelay(1000);
+#endif
+}
+
+void set_phy_normal_mode(void)
+{
+	char devemac2[32];
+	char devemac3[32];
+	unsigned short reg_short;
+
+	sprintf(devemac2, "%s2", CONFIG_EMAC_DEV_NAME);
+	sprintf(devemac3, "%s3", CONFIG_EMAC_DEV_NAME);
+
+	/* Set phy of EMAC2 */
+	miiphy_read(devemac2, CONFIG_PHY2_ADDR, 0x16, &reg_short);
+	reg_short &= ~(0x7);
+	reg_short |= 0x6;	/* RGMII DLL Delay */
+	miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0x16, reg_short);
+
+	miiphy_read(devemac2, CONFIG_PHY2_ADDR, 0x17, &reg_short);
+	reg_short &= ~(0x40);
+	miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0x17, reg_short);
+
+	miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0x1c, 0x74f0);
+
+	/* Set phy of EMAC3 */
+	miiphy_read(devemac3, CONFIG_PHY3_ADDR, 0x16, &reg_short);
+	reg_short &= ~(0x7);
+	reg_short |= 0x6;	/* RGMII DLL Delay */
+	miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0x16, reg_short);
+
+	miiphy_read(devemac3, CONFIG_PHY3_ADDR, 0x17, &reg_short);
+	reg_short &= ~(0x40);
+	miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0x17, reg_short);
+
+	miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0x1c, 0x74f0);
+}
+#endif
+
+static int do_led_test_off(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	volatile unsigned int *GpioOr =
+		(volatile unsigned int *)(CFG_PERIPHERAL_BASE + 0x700);
+	*GpioOr |= 0x00300000;
+	return 0;
+}
+
+static int do_led_test_on(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	volatile unsigned int *GpioOr =
+		(volatile unsigned int *)(CFG_PERIPHERAL_BASE + 0x700);
+	*GpioOr &= ~0x00300000;
+	return 0;
+}
+
+U_BOOT_CMD(ledon, 1, 1, do_led_test_on,
+	   "ledon - led test light on\n", NULL);
+
+U_BOOT_CMD(ledoff, 1, 1, do_led_test_off,
+	   "ledoff - led test light off\n", NULL);
+#endif
diff --git a/board/amcc/taishan/showinfo.c b/board/amcc/taishan/showinfo.c
new file mode 100644
index 000000000..57b9d1c42
--- /dev/null
+++ b/board/amcc/taishan/showinfo.c
@@ -0,0 +1,236 @@
+/*
+ * (C) Copyright 2007
+ * Stefan Roese, DENX Software Engineering, sr@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 <config.h>
+#include <common.h>
+#include <command.h>
+#include <asm/processor.h>
+#include <pci.h>
+
+void show_reset_reg(void)
+{
+	unsigned long reg;
+
+	/* read clock regsiter */
+	printf("===== Display reset and initialize register Start =========\n");
+	mfclk(clk_pllc,reg);
+	printf("cpr_pllc   = %#010x\n",reg);
+
+	mfclk(clk_plld,reg);
+	printf("cpr_plld   = %#010x\n",reg);
+
+	mfclk(clk_primad,reg);
+	printf("cpr_primad = %#010x\n",reg);
+
+	mfclk(clk_primbd,reg);
+	printf("cpr_primbd = %#010x\n",reg);
+
+	mfclk(clk_opbd,reg);
+	printf("cpr_opbd   = %#010x\n",reg);
+
+	mfclk(clk_perd,reg);
+	printf("cpr_perd   = %#010x\n",reg);
+
+	mfclk(clk_mald,reg);
+	printf("cpr_mald   = %#010x\n",reg);
+
+	/* read sdr register */
+	mfsdr(sdr_ebc,reg);
+	printf("sdr_ebc    = %#010x\n",reg);
+
+	mfsdr(sdr_cp440,reg);
+	printf("sdr_cp440  = %#010x\n",reg);
+
+	mfsdr(sdr_xcr,reg);
+	printf("sdr_xcr    = %#010x\n",reg);
+
+	mfsdr(sdr_xpllc,reg);
+	printf("sdr_xpllc  = %#010x\n",reg);
+
+	mfsdr(sdr_xplld,reg);
+	printf("sdr_xplld  = %#010x\n",reg);
+
+	mfsdr(sdr_pfc0,reg);
+	printf("sdr_pfc0   = %#010x\n",reg);
+
+	mfsdr(sdr_pfc1,reg);
+	printf("sdr_pfc1   = %#010x\n",reg);
+
+	mfsdr(sdr_cust0,reg);
+	printf("sdr_cust0  = %#010x\n",reg);
+
+	mfsdr(sdr_cust1,reg);
+	printf("sdr_cust1  = %#010x\n",reg);
+
+	mfsdr(sdr_uart0,reg);
+	printf("sdr_uart0  = %#010x\n",reg);
+
+	mfsdr(sdr_uart1,reg);
+	printf("sdr_uart1  = %#010x\n",reg);
+
+	printf("===== Display reset and initialize register End   =========\n");
+}
+
+void show_xbridge_info(void)
+{
+	unsigned long reg;
+
+	printf("PCI-X chip control registers\n");
+	mfsdr(sdr_xcr, reg);
+	printf("sdr_xcr    = %#010x\n", reg);
+
+	mfsdr(sdr_xpllc, reg);
+	printf("sdr_xpllc  = %#010x\n", reg);
+
+	mfsdr(sdr_xplld, reg);
+	printf("sdr_xplld  = %#010x\n", reg);
+
+	printf("PCI-X Bridge Configure registers\n");
+	printf("PCIX0_VENDID            = %#06x\n", in16r(PCIX0_VENDID));
+	printf("PCIX0_DEVID             = %#06x\n", in16r(PCIX0_DEVID));
+	printf("PCIX0_CMD               = %#06x\n", in16r(PCIX0_CMD));
+	printf("PCIX0_STATUS            = %#06x\n", in16r(PCIX0_STATUS));
+	printf("PCIX0_REVID             = %#04x\n", in8(PCIX0_REVID));
+	printf("PCIX0_CACHELS           = %#04x\n", in8(PCIX0_CACHELS));
+	printf("PCIX0_LATTIM            = %#04x\n", in8(PCIX0_LATTIM));
+	printf("PCIX0_HDTYPE            = %#04x\n", in8(PCIX0_HDTYPE));
+	printf("PCIX0_BIST              = %#04x\n", in8(PCIX0_BIST));
+
+	printf("PCIX0_BAR0              = %#010x\n", in32r(PCIX0_BAR0));
+	printf("PCIX0_BAR1              = %#010x\n", in32r(PCIX0_BAR1));
+	printf("PCIX0_BAR2              = %#010x\n", in32r(PCIX0_BAR2));
+	printf("PCIX0_BAR3              = %#010x\n", in32r(PCIX0_BAR3));
+	printf("PCIX0_BAR4              = %#010x\n", in32r(PCIX0_BAR4));
+	printf("PCIX0_BAR5              = %#010x\n", in32r(PCIX0_BAR5));
+
+	printf("PCIX0_CISPTR            = %#010x\n", in32r(PCIX0_CISPTR));
+	printf("PCIX0_SBSSYSVID         = %#010x\n", in16r(PCIX0_SBSYSVID));
+	printf("PCIX0_SBSSYSID          = %#010x\n", in16r(PCIX0_SBSYSID));
+	printf("PCIX0_EROMBA            = %#010x\n", in32r(PCIX0_EROMBA));
+	printf("PCIX0_CAP               = %#04x\n", in8(PCIX0_CAP));
+	printf("PCIX0_INTLN             = %#04x\n", in8(PCIX0_INTLN));
+	printf("PCIX0_INTPN             = %#04x\n", in8(PCIX0_INTPN));
+	printf("PCIX0_MINGNT            = %#04x\n", in8(PCIX0_MINGNT));
+	printf("PCIX0_MAXLTNCY          = %#04x\n", in8(PCIX0_MAXLTNCY));
+
+	printf("PCIX0_BRDGOPT1          = %#010x\n", in32r(PCIX0_BRDGOPT1));
+	printf("PCIX0_BRDGOPT2          = %#010x\n", in32r(PCIX0_BRDGOPT2));
+
+	printf("PCIX0_POM0LAL           = %#010x\n", in32r(PCIX0_POM0LAL));
+	printf("PCIX0_POM0LAH           = %#010x\n", in32r(PCIX0_POM0LAH));
+	printf("PCIX0_POM0SA            = %#010x\n", in32r(PCIX0_POM0SA));
+	printf("PCIX0_POM0PCILAL        = %#010x\n", in32r(PCIX0_POM0PCIAL));
+	printf("PCIX0_POM0PCILAH        = %#010x\n", in32r(PCIX0_POM0PCIAH));
+	printf("PCIX0_POM1LAL           = %#010x\n", in32r(PCIX0_POM1LAL));
+	printf("PCIX0_POM1LAH           = %#010x\n", in32r(PCIX0_POM1LAH));
+	printf("PCIX0_POM1SA            = %#010x\n", in32r(PCIX0_POM1SA));
+	printf("PCIX0_POM1PCILAL        = %#010x\n", in32r(PCIX0_POM1PCIAL));
+	printf("PCIX0_POM1PCILAH        = %#010x\n", in32r(PCIX0_POM1PCIAH));
+	printf("PCIX0_POM2SA            = %#010x\n", in32r(PCIX0_POM2SA));
+
+	printf("PCIX0_PIM0SA            = %#010x\n", in32r(PCIX0_PIM0SA));
+	printf("PCIX0_PIM0LAL           = %#010x\n", in32r(PCIX0_PIM0LAL));
+	printf("PCIX0_PIM0LAH           = %#010x\n", in32r(PCIX0_PIM0LAH));
+	printf("PCIX0_PIM1SA            = %#010x\n", in32r(PCIX0_PIM1SA));
+	printf("PCIX0_PIM1LAL           = %#010x\n", in32r(PCIX0_PIM1LAL));
+	printf("PCIX0_PIM1LAH           = %#010x\n", in32r(PCIX0_PIM1LAH));
+	printf("PCIX0_PIM2SA            = %#010x\n", in32r(PCIX0_PIM1SA));
+	printf("PCIX0_PIM2LAL           = %#010x\n", in32r(PCIX0_PIM1LAL));
+	printf("PCIX0_PIM2LAH           = %#010x\n", in32r(PCIX0_PIM1LAH));
+
+	printf("PCIX0_XSTS              = %#010x\n", in32r(PCIX0_STS));
+}
+
+int do_show_xbridge_info(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	show_xbridge_info();
+	return 0;
+}
+
+U_BOOT_CMD(xbriinfo, 1, 1, do_show_xbridge_info,
+	   "xbriinfo  - Show PCIX bridge info\n", NULL);
+
+#define TAISHAN_PCI_DEV_ID0 0x800
+#define TAISHAN_PCI_DEV_ID1 0x1000
+
+void show_pcix_device_info(void)
+{
+	int ii;
+	int dev;
+	u8 capp;
+	u8 xcapid;
+	u16 status;
+	u16 xcommand;
+	u32 xstatus;
+
+	for (ii = 0; ii < 2; ii++) {
+		if (ii == 0)
+			dev = TAISHAN_PCI_DEV_ID0;
+		else
+			dev = TAISHAN_PCI_DEV_ID1;
+
+		pci_read_config_word(dev, PCI_STATUS, &status);
+		if (status & PCI_STATUS_CAP_LIST) {
+			pci_read_config_byte(dev, PCI_CAPABILITY_LIST, &capp);
+
+			pci_read_config_byte(dev, (int)(capp), &xcapid);
+			if (xcapid == 0x07) {
+				pci_read_config_word(dev, (int)(capp + 2),
+						     &xcommand);
+				pci_read_config_dword(dev, (int)(capp + 4),
+						      &xstatus);
+				printf("BUS0 dev%d Xcommand=%#06x,Xstatus=%#010x\n",
+				       (ii + 1), xcommand, xstatus);
+			} else {
+				printf("BUS0 dev%d PCI-X CAP ID error,"
+				       "CAP=%#04x,XCAPID=%#04x\n",
+				       (ii + 1), capp, xcapid);
+			}
+		} else {
+			printf("BUS0 dev%d not found PCI_STATUS_CAP_LIST supporting\n",
+			       ii + 1);
+		}
+	}
+
+}
+
+int do_show_pcix_device_info(cmd_tbl_t * cmdtp, int flag, int argc,
+			     char *argv[])
+{
+	show_pcix_device_info();
+	return 0;
+}
+
+U_BOOT_CMD(xdevinfo, 1, 1, do_show_pcix_device_info,
+	   "xdevinfo  - Show PCIX Device info\n", NULL);
+
+extern void show_reset_reg(void);
+
+int do_show_reset_reg_info(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	show_reset_reg();
+	return 0;
+}
+
+U_BOOT_CMD(resetinfo, 1, 1, do_show_reset_reg_info,
+	   "resetinfo  - Show Reset REG info\n", NULL);
diff --git a/board/amcc/taishan/taishan.c b/board/amcc/taishan/taishan.c
new file mode 100644
index 000000000..7e023711f
--- /dev/null
+++ b/board/amcc/taishan/taishan.c
@@ -0,0 +1,331 @@
+/*
+ *  Copyright (C) 2004 PaulReynolds@lhsolutions.com
+ *
+ * (C) Copyright 2007
+ * Stefan Roese, DENX Software Engineering, sr@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 <asm/processor.h>
+#include <spd_sdram.h>
+#include <ppc4xx_enet.h>
+
+#ifdef CFG_INIT_SHOW_RESET_REG
+void show_reset_reg(void);
+#endif
+
+int lcd_init(void);
+
+int board_early_init_f (void)
+{
+	unsigned long reg;
+	volatile unsigned int *GpioOdr;
+	volatile unsigned int *GpioTcr;
+	volatile unsigned int *GpioOr;
+
+	/*-------------------------------------------------------------------------+
+	  | Initialize EBC CONFIG
+	  +-------------------------------------------------------------------------*/
+	mtebc(xbcfg, EBC_CFG_LE_UNLOCK |
+	      EBC_CFG_PTD_ENABLE | EBC_CFG_RTC_64PERCLK |
+	      EBC_CFG_ATC_PREVIOUS | EBC_CFG_DTC_PREVIOUS |
+	      EBC_CFG_CTC_PREVIOUS | EBC_CFG_EMC_DEFAULT |
+	      EBC_CFG_PME_DISABLE | EBC_CFG_PR_32);
+
+	/*-------------------------------------------------------------------------+
+	  | 64MB FLASH. Initialize bank 0 with default values.
+	  +-------------------------------------------------------------------------*/
+	mtebc(pb0ap, EBC_BXAP_BME_DISABLED|EBC_BXAP_TWT_ENCODE(15) |
+	      EBC_BXAP_BCE_DISABLE |
+	      EBC_BXAP_CSN_ENCODE(1) | EBC_BXAP_OEN_ENCODE(1) |
+	      EBC_BXAP_WBN_ENCODE(1) | EBC_BXAP_WBF_ENCODE(1) |
+	      EBC_BXAP_TH_ENCODE(3) | EBC_BXAP_RE_DISABLED |
+	      EBC_BXAP_BEM_WRITEONLY |
+	      EBC_BXAP_PEN_DISABLED);
+	mtebc(pb0cr, EBC_BXCR_BAS_ENCODE(CFG_FLASH_BASE) |
+	      EBC_BXCR_BS_64MB | EBC_BXCR_BU_RW|EBC_BXCR_BW_32BIT);
+
+	/*-------------------------------------------------------------------------+
+	  | FPGA. Initialize bank 1 with default values.
+	  +-------------------------------------------------------------------------*/
+	mtebc(pb1ap, EBC_BXAP_BME_DISABLED|EBC_BXAP_TWT_ENCODE(5) |
+	      EBC_BXAP_BCE_DISABLE |
+	      EBC_BXAP_CSN_ENCODE(1) | EBC_BXAP_OEN_ENCODE(1) |
+	      EBC_BXAP_WBN_ENCODE(1) | EBC_BXAP_WBF_ENCODE(1) |
+	      EBC_BXAP_TH_ENCODE(3) | EBC_BXAP_RE_DISABLED |
+	      EBC_BXAP_BEM_WRITEONLY |
+	      EBC_BXAP_PEN_DISABLED);
+	mtebc(pb1cr, EBC_BXCR_BAS_ENCODE(0x41000000) |
+	      EBC_BXCR_BS_1MB | EBC_BXCR_BU_RW | EBC_BXCR_BW_8BIT);
+
+	/*-------------------------------------------------------------------------+
+	  | LCM. Initialize bank 2 with default values.
+	  +-------------------------------------------------------------------------*/
+	mtebc(pb2ap, EBC_BXAP_BME_DISABLED | EBC_BXAP_TWT_ENCODE(64) |
+	      EBC_BXAP_BCE_DISABLE |
+	      EBC_BXAP_CSN_ENCODE(3) | EBC_BXAP_OEN_ENCODE(3) |
+	      EBC_BXAP_WBN_ENCODE(3) | EBC_BXAP_WBF_ENCODE(3) |
+	      EBC_BXAP_TH_ENCODE(7) | EBC_BXAP_RE_DISABLED |
+	      EBC_BXAP_BEM_WRITEONLY |
+	      EBC_BXAP_PEN_DISABLED);
+	mtebc(pb2cr, EBC_BXCR_BAS_ENCODE(0x42000000) |
+	      EBC_BXCR_BS_1MB | EBC_BXCR_BU_RW|EBC_BXCR_BW_8BIT);
+
+	/*-------------------------------------------------------------------------+
+	  | TMP. Initialize bank 3 with default values.
+	  +-------------------------------------------------------------------------*/
+	mtebc(pb3ap, EBC_BXAP_BME_DISABLED | EBC_BXAP_TWT_ENCODE(128) |
+	      EBC_BXAP_BCE_DISABLE |
+	      EBC_BXAP_CSN_ENCODE(3) | EBC_BXAP_OEN_ENCODE(3) |
+	      EBC_BXAP_WBN_ENCODE(3) | EBC_BXAP_WBF_ENCODE(3) |
+	      EBC_BXAP_TH_ENCODE(7) | EBC_BXAP_RE_DISABLED |
+	      EBC_BXAP_BEM_WRITEONLY |
+	      EBC_BXAP_PEN_DISABLED);
+	mtebc(pb3cr, EBC_BXCR_BAS_ENCODE(0x48000000) |
+	      EBC_BXCR_BS_64MB | EBC_BXCR_BU_RW | EBC_BXCR_BW_32BIT);
+
+	/*-------------------------------------------------------------------------+
+	  | Connector 4~7. Initialize bank 3~ 7 with default values.
+	  +-------------------------------------------------------------------------*/
+	mtebc(pb4ap,0);
+	mtebc(pb4cr,0);
+	mtebc(pb5ap,0);
+	mtebc(pb5cr,0);
+	mtebc(pb6ap,0);
+	mtebc(pb6cr,0);
+	mtebc(pb7ap,0);
+	mtebc(pb7cr,0);
+
+	/*--------------------------------------------------------------------
+	 * Setup the interrupt controller polarities, triggers, etc.
+	 *-------------------------------------------------------------------*/
+	mtdcr (uic0sr, 0xffffffff);	/* clear all */
+	mtdcr (uic0er, 0x00000000);	/* disable all */
+	mtdcr (uic0cr, 0x00000009);	/* SMI & UIC1 crit are critical */
+	mtdcr (uic0pr, 0xfffffe13);	/* per ref-board manual */
+	mtdcr (uic0tr, 0x01c00008);	/* per ref-board manual */
+	mtdcr (uic0vr, 0x00000001);	/* int31 highest, base=0x000 */
+	mtdcr (uic0sr, 0xffffffff);	/* clear all */
+
+	mtdcr (uic1sr, 0xffffffff);	/* clear all */
+	mtdcr (uic1er, 0x00000000);	/* disable all */
+	mtdcr (uic1cr, 0x00000000);	/* all non-critical */
+	mtdcr (uic1pr, 0xffffe0ff);	/* per ref-board manual */
+	mtdcr (uic1tr, 0x00ffc000);	/* per ref-board manual */
+	mtdcr (uic1vr, 0x00000001);	/* int31 highest, base=0x000 */
+	mtdcr (uic1sr, 0xffffffff);	/* clear all */
+
+	mtdcr (uic2sr, 0xffffffff);	/* clear all */
+	mtdcr (uic2er, 0x00000000);	/* disable all */
+	mtdcr (uic2cr, 0x00000000);	/* all non-critical */
+	mtdcr (uic2pr, 0xffffffff);	/* per ref-board manual */
+	mtdcr (uic2tr, 0x00ff8c0f);	/* per ref-board manual */
+	mtdcr (uic2vr, 0x00000001);	/* int31 highest, base=0x000 */
+	mtdcr (uic2sr, 0xffffffff);	/* clear all */
+
+	mtdcr (uicb0sr, 0xfc000000);	/* clear all */
+	mtdcr (uicb0er, 0x00000000);	/* disable all */
+	mtdcr (uicb0cr, 0x00000000);	/* all non-critical */
+	mtdcr (uicb0pr, 0xfc000000);	/* */
+	mtdcr (uicb0tr, 0x00000000);	/* */
+	mtdcr (uicb0vr, 0x00000001);	/* */
+
+	/* Enable two GPIO 10~11 and TraceA signal */
+	mfsdr(sdr_pfc0,reg);
+	reg |= 0x00300000;
+	mtsdr(sdr_pfc0,reg);
+
+	mfsdr(sdr_pfc1,reg);
+	reg |= 0x00100000;
+	mtsdr(sdr_pfc1,reg);
+
+	/* Set GPIO 10 and 11 as output */
+	GpioOdr	= (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x718);
+	GpioTcr = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x704);
+	GpioOr  = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x700);
+
+	*GpioOdr &= ~(0x00300000);
+	*GpioTcr |= 0x00300000;
+        *GpioOr  |= 0x00300000;
+
+	return 0;
+}
+
+int misc_init_r(void)
+{
+	lcd_init();
+
+	return 0;
+}
+
+int checkboard (void)
+{
+	char *s = getenv ("serial#");
+
+	printf ("Board: Taishan - AMCC PPC440GX Evaluation Board");
+	if (s != NULL) {
+		puts (", serial# ");
+		puts (s);
+	}
+	putc ('\n');
+
+#ifdef CFG_INIT_SHOW_RESET_REG
+	show_reset_reg();
+#endif
+
+	return (0);
+}
+
+#if defined(CFG_DRAM_TEST)
+int testdram (void)
+{
+	uint *pstart = (uint *) 0x04000000;
+	uint *pend = (uint *) 0x0fc00000;
+	uint *p;
+
+	for (p = pstart; p < pend; p++)
+		*p = 0xaaaaaaaa;
+
+	for (p = pstart; p < pend; p++) {
+		if (*p != 0xaaaaaaaa) {
+			printf ("SDRAM test fails at: %08x\n", (uint) p);
+			return 1;
+		}
+	}
+
+	for (p = pstart; p < pend; p++)
+		*p = 0x55555555;
+
+	for (p = pstart; p < pend; p++) {
+		if (*p != 0x55555555) {
+			printf ("SDRAM test fails at: %08x\n", (uint) p);
+			return 1;
+		}
+	}
+	return 0;
+}
+#endif
+
+/*************************************************************************
+ *  pci_pre_init
+ *
+ *  This routine is called just prior to registering the hose and gives
+ *  the board the opportunity to check things. Returning a value of zero
+ *  indicates that things are bad & PCI initialization should be aborted.
+ *
+ *	Different boards may wish to customize the pci controller structure
+ *	(add regions, override default access routines, etc) or perform
+ *	certain pre-initialization actions.
+ *
+ ************************************************************************/
+#if defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT)
+int pci_pre_init(struct pci_controller * hose )
+{
+	unsigned long strap;
+
+	/*--------------------------------------------------------------------------+
+	 *	The ocotea board is always configured as the host & requires the
+	 *	PCI arbiter to be enabled.
+	 *--------------------------------------------------------------------------*/
+	mfsdr(sdr_sdstp1, strap);
+	if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ){
+		printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap);
+		return 0;
+	}
+
+	return 1;
+}
+#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT) */
+
+/*************************************************************************
+ *  pci_target_init
+ *
+ *	The bootstrap configuration provides default settings for the pci
+ *	inbound map (PIM). But the bootstrap config choices are limited and
+ *	may not be sufficient for a given board.
+ *
+ ************************************************************************/
+#if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT)
+void pci_target_init(struct pci_controller * hose )
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	/*--------------------------------------------------------------------------+
+	 * Disable everything
+	 *--------------------------------------------------------------------------*/
+	out32r( PCIX0_PIM0SA, 0 ); /* disable */
+	out32r( PCIX0_PIM1SA, 0 ); /* disable */
+	out32r( PCIX0_PIM2SA, 0 ); /* disable */
+	out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */
+
+	/*--------------------------------------------------------------------------+
+	 * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 strapping
+	 * options to not support sizes such as 128/256 MB.
+	 *--------------------------------------------------------------------------*/
+	out32r( PCIX0_PIM0LAL, CFG_SDRAM_BASE );
+	out32r( PCIX0_PIM0LAH, 0 );
+	out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 );
+
+	out32r( PCIX0_BAR0, 0 );
+
+	/*--------------------------------------------------------------------------+
+	 * Program the board's subsystem id/vendor id
+	 *--------------------------------------------------------------------------*/
+	out16r( PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID );
+	out16r( PCIX0_SBSYSID, CFG_PCI_SUBSYS_DEVICEID );
+
+	out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY );
+}
+#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
+
+/*************************************************************************
+ *  is_pci_host
+ *
+ *	This routine is called to determine if a pci scan should be
+ *	performed. With various hardware environments (especially cPCI and
+ *	PPMC) it's insufficient to depend on the state of the arbiter enable
+ *	bit in the strap register, or generic host/adapter assumptions.
+ *
+ *	Rather than hard-code a bad assumption in the general 440 code, the
+ *	440 pci code requires the board to decide at runtime.
+ *
+ *	Return 0 for adapter mode, non-zero for host (monarch) mode.
+ *
+ *
+ ************************************************************************/
+#if defined(CONFIG_PCI)
+int is_pci_host(struct pci_controller *hose)
+{
+	/* The ocotea board is always configured as host. */
+	return(1);
+}
+#endif /* defined(CONFIG_PCI) */
+
+#ifdef CONFIG_POST
+/*
+ * Returns 1 if keys pressed to start the power-on long-running tests
+ * Called from board_init_f().
+ */
+int post_hotkeys_pressed(void)
+{
+	return (ctrlc());
+}
+#endif
diff --git a/board/amcc/taishan/u-boot.lds b/board/amcc/taishan/u-boot.lds
new file mode 100644
index 000000000..664716ed4
--- /dev/null
+++ b/board/amcc/taishan/u-boot.lds
@@ -0,0 +1,157 @@
+/*
+ * (C) Copyright 2004
+ * 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
+
+  .bootpg 0xFFFFF000 :
+  {
+    cpu/ppc4xx/start.o	(.bootpg)
+  } = 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)
+    board/amcc/taishan/init.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/taishan/update.c b/board/amcc/taishan/update.c
new file mode 100644
index 000000000..ed2c196dc
--- /dev/null
+++ b/board/amcc/taishan/update.c
@@ -0,0 +1,78 @@
+/*
+ * (C) Copyright 2007
+ * Stefan Roese, DENX Software Engineering, sr@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 <config.h>
+#include <common.h>
+#include <command.h>
+#include <asm/processor.h>
+#include <i2c.h>
+
+#if defined(CONFIG_TAISHAN)
+
+const uchar bootstrap_buf[16] = {
+	0x86,
+	0x78,
+	0xc1,
+	0xa6,
+	0x09,
+	0x67,
+	0x04,
+	0x63,
+	0x00,
+	0x00,
+	0x00,
+	0x00,
+	0x00,
+	0x00,
+	0x00,
+	0x00
+};
+
+static int update_boot_eeprom(void)
+{
+	ulong len = 0x10;
+	uchar chip = CFG_BOOTSTRAP_IIC_ADDR;
+	uchar *pbuf = (uchar *)bootstrap_buf;
+	int ii, jj;
+
+	for (ii = 0; ii < len; ii++) {
+		if (i2c_write(chip, ii, 1, &pbuf[ii], 1) != 0) {
+			printf("i2c_write failed\n");
+			return -1;
+		}
+
+		/* wait 10ms */
+		for (jj = 0; jj < 10; jj++)
+			udelay(1000);
+	}
+	return 0;
+}
+
+int do_update_boot_eeprom(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	return update_boot_eeprom();
+}
+
+U_BOOT_CMD(update_boot_eeprom, 1, 1, do_update_boot_eeprom,
+	   "update_boot_eeprom  - update bootstrap eeprom content\n", NULL);
+#endif