Patch by TsiChung Liew, 23 Sep 2004:

- add support for MPC8220 CPU
- Add support for Alaska and Yukon boards

7 files changed, 1399 insertions, 0 deletions

diff --git a/board/alaska/Makefile b/board/alaska/Makefile
new file mode 100644
index 0000000..d2b5bb7
--- /dev/null
+++ b/board/alaska/Makefile
@@ -0,0 +1,45 @@
+# (C) Copyright 2003-2004
+# 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	:= $(BOARD).o flash.o extserial.o serial.o
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) crv $@ $(OBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+-include .depend
+
+#########################################################################
diff --git a/board/alaska/alaska.c b/board/alaska/alaska.c
new file mode 100644
index 0000000..93874b2
--- /dev/null
+++ b/board/alaska/alaska.c
@@ -0,0 +1,153 @@
+/*
+ * (C) Copyright 2004, Freescale Inc.
+ * TsiChung Liew, Tsi-Chung.Liew@freescale.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 <mpc8220.h>
+#include <asm/processor.h>
+#include <asm/mmu.h>
+
+void setupBat (ulong size)
+{
+	ulong batu, batl;
+	int blocksize = 0;
+
+	/* Flash 0 */
+#if defined (CFG_AMD_BOOT)
+	batu = CFG_FLASH0_BASE | (BL_512K << 2) | BPP_RW | BPP_RX;
+#else
+	batu = CFG_FLASH0_BASE | (BL_16M << 2) | BPP_RW | BPP_RX;
+#endif
+	batl = CFG_FLASH0_BASE | 0x22;
+	write_bat (IBAT0, batu, batl);
+	write_bat (DBAT0, batu, batl);
+
+	/* Flash 1 */
+#if defined (CFG_AMD_BOOT)
+	batu = CFG_FLASH1_BASE | (BL_16M << 2) | BPP_RW | BPP_RX;
+#else
+	batu = CFG_FLASH1_BASE | (BL_512K << 2) | BPP_RW | BPP_RX;
+#endif
+	batl = CFG_FLASH1_BASE | 0x22;
+	write_bat (IBAT1, batu, batl);
+	write_bat (DBAT1, batu, batl);
+
+	/* CPLD */
+	batu = CFG_CPLD_BASE | (BL_512K << 2) | BPP_RW | BPP_RX;
+	batl = CFG_CPLD_BASE | 0x22;
+	write_bat (IBAT2, 0, 0);
+	write_bat (DBAT2, batu, batl);
+
+	/* FPGA */
+	batu = CFG_FPGA_BASE | (BL_512K << 2) | BPP_RW | BPP_RX;
+	batl = CFG_FPGA_BASE | 0x22;
+	write_bat (IBAT3, 0, 0);
+	write_bat (DBAT3, batu, batl);
+
+	/* MBAR - Data only */
+	batu = CFG_MBAR | BPP_RW | BPP_RX;
+	batl = CFG_MBAR | 0x22;
+	mtspr (IBAT4L, 0);
+	mtspr (IBAT4U, 0);
+	mtspr (DBAT4L, batl);
+	mtspr (DBAT4U, batu);
+
+	/* MBAR - SRAM */
+	batu = CFG_SRAM_BASE | BPP_RW | BPP_RX;
+	batl = CFG_SRAM_BASE | 0x42;
+	mtspr (IBAT5L, batl);
+	mtspr (IBAT5U, batu);
+	mtspr (DBAT5L, batl);
+	mtspr (DBAT5U, batu);
+
+	if (size <= 0x800000)	/* 8MB */
+		blocksize = BL_8M << 2;
+	else if (size <= 0x1000000)	/* 16MB */
+		blocksize = BL_16M << 2;
+	else if (size <= 0x2000000)	/* 32MB */
+		blocksize = BL_32M << 2;
+	else if (size <= 0x4000000)	/* 64MB */
+		blocksize = BL_64M << 2;
+	else if (size <= 0x8000000)	/* 128MB */
+		blocksize = BL_128M << 2;
+	else if (size <= 0x10000000)	/* 256MB */
+		blocksize = BL_256M << 2;
+
+	/* Memory */
+	batu = CFG_SDRAM_BASE | blocksize | BPP_RW | BPP_RX;
+	batl = CFG_SDRAM_BASE | 0x42;
+	mtspr (IBAT6L, batl);
+	mtspr (IBAT6U, batu);
+	mtspr (DBAT6L, batl);
+	mtspr (DBAT6U, batu);
+
+	/* memory size is less than 256MB */
+	if (size <= 0x10000000) {
+		/* Nothing */
+		batu = 0;
+		batl = 0;
+	} else {
+		size -= 0x10000000;
+		if (size <= 0x800000)	/* 8MB */
+			blocksize = BL_8M << 2;
+		else if (size <= 0x1000000)	/* 16MB */
+			blocksize = BL_16M << 2;
+		else if (size <= 0x2000000)	/* 32MB */
+			blocksize = BL_32M << 2;
+		else if (size <= 0x4000000)	/* 64MB */
+			blocksize = BL_64M << 2;
+		else if (size <= 0x8000000)	/* 128MB */
+			blocksize = BL_128M << 2;
+		else if (size <= 0x10000000)	/* 256MB */
+			blocksize = BL_256M << 2;
+
+		batu = (CFG_SDRAM_BASE +
+			0x10000000) | blocksize | BPP_RW | BPP_RX;
+		batl = (CFG_SDRAM_BASE + 0x10000000) | 0x42;
+	}
+
+	mtspr (IBAT7L, batl);
+	mtspr (IBAT7U, batu);
+	mtspr (DBAT7L, batl);
+	mtspr (DBAT7U, batu);
+}
+
+long int initdram (int board_type)
+{
+	ulong size;
+
+	size = dramSetup ();
+
+/* if iCache ad dCache is defined */
+#if (CONFIG_COMMANDS & CFG_CMD_CACHE)
+/*    setupBat(size);*/
+#endif
+
+	return size;
+}
+
+int checkboard (void)
+{
+	puts ("Board: Alaska MPC8220 Evaluation Board\n");
+
+	return 0;
+}
diff --git a/board/alaska/config.mk b/board/alaska/config.mk
new file mode 100644
index 0000000..99d28a5
--- /dev/null
+++ b/board/alaska/config.mk
@@ -0,0 +1,31 @@
+#
+# (C) Copyright 2003-2004
+# 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
+#
+
+#
+# alaska board
+#
+
+TEXT_BASE = 0xfff00000
+# TEXT_BASE = 0x00100000
+
+PLATFORM_CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) -I$(TOPDIR)/board
diff --git a/board/alaska/extserial.c b/board/alaska/extserial.c
new file mode 100644
index 0000000..f17e06e
--- /dev/null
+++ b/board/alaska/extserial.c
@@ -0,0 +1,110 @@
+/*
+ * (C) Copyright 2004, Freescale, Inc
+ * TsiChung Liew, Tsi-Chung.Liew@freescale.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
+ *
+ */
+
+/*
+ * Minimal serial functions needed to use one of the PSC ports
+ * as serial console interface.
+ */
+
+#include <common.h>
+#include <mpc8220.h>
+
+#if defined (CONFIG_EXTUART_CONSOLE)
+#   include <ns16550.h>
+
+#   define PADSERIAL_BAUD_115200   0x40
+#   define PADSERIAL_BAUD_57600    0x20
+#   define PADSERIAL_BAUD_9600     0
+#   define PADCARD_FREQ            18432000
+
+const NS16550_t com_port = (NS16550_t) CFG_NS16550_COM1;
+
+int ext_serial_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	volatile u8 *dipswitch = (volatile u8 *) (CFG_CPLD_BASE + 0x1002);
+	int baud_divisor;
+
+	/* Find out the baud rate speed on debug card dip switches */
+	if (*dipswitch & PADSERIAL_BAUD_115200)
+		gd->baudrate = 115200;
+	else if (*dipswitch & PADSERIAL_BAUD_57600)
+		gd->baudrate = 57600;
+	else
+		gd->baudrate = 9600;
+
+	/* Debug card frequency */
+	baud_divisor = PADCARD_FREQ / (16 * gd->baudrate);
+
+	NS16550_init (com_port, baud_divisor);
+
+	return (0);
+}
+
+void ext_serial_putc (const char c)
+{
+	if (c == '\n')
+		NS16550_putc (com_port, '\r');
+
+	NS16550_putc (com_port, c);
+}
+
+void ext_serial_puts (const char *s)
+{
+	while (*s) {
+		serial_putc (*s++);
+	}
+}
+
+int ext_serial_getc (void)
+{
+	return NS16550_getc (com_port);
+}
+
+int ext_serial_tstc (void)
+{
+	return NS16550_tstc (com_port);
+}
+
+void ext_serial_setbrg (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	volatile u8 *dipswitch = (volatile u8 *) (CFG_CPLD_BASE + 0x1002);
+	int baud_divisor;
+
+	/* Find out the baud rate speed on debug card dip switches */
+	if (*dipswitch & PADSERIAL_BAUD_115200)
+		gd->baudrate = 115200;
+	else if (*dipswitch & PADSERIAL_BAUD_57600)
+		gd->baudrate = 57600;
+	else
+		gd->baudrate = 9600;
+
+	/* Debug card frequency */
+	baud_divisor = PADCARD_FREQ / (16 * gd->baudrate);
+
+	NS16550_reinit (com_port, baud_divisor);
+}
+#endif /* CONFIG_EXTUART_CONSOLE */
diff --git a/board/alaska/flash.c b/board/alaska/flash.c
new file mode 100644
index 0000000..48c9472
--- /dev/null
+++ b/board/alaska/flash.c
@@ -0,0 +1,807 @@
+/*
+ * (C) Copyright 2001
+ * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
+ *
+ * (C) Copyright 2001-2004
+ * 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
+ */
+
+#include <common.h>
+#include <linux/byteorder/swab.h>
+
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];	/* info for FLASH chips    */
+
+/* Board support for 1 or 2 flash devices */
+#define FLASH_PORT_WIDTH8
+
+typedef unsigned char FLASH_PORT_WIDTH;
+typedef volatile unsigned char FLASH_PORT_WIDTHV;
+
+#define SWAP(x)         (x)
+
+/* Intel-compatible flash ID */
+#define INTEL_COMPAT    0x89
+#define INTEL_ALT       0xB0
+
+/* Intel-compatible flash commands */
+#define INTEL_PROGRAM   0x10
+#define INTEL_ERASE     0x20
+#define INTEL_CLEAR     0x50
+#define INTEL_LOCKBIT   0x60
+#define INTEL_PROTECT   0x01
+#define INTEL_STATUS    0x70
+#define INTEL_READID    0x90
+#define INTEL_CONFIRM   0xD0
+#define INTEL_RESET     0xFF
+
+/* Intel-compatible flash status bits */
+#define INTEL_FINISHED  0x80
+#define INTEL_OK        0x80
+
+#define FPW             FLASH_PORT_WIDTH
+#define FPWV            FLASH_PORT_WIDTHV
+
+#define FLASH_CYCLE1    0x0555
+#define FLASH_CYCLE2    0x02aa
+
+#define WR_BLOCK        0x20
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size (FPW * addr, flash_info_t * info);
+static int write_data (flash_info_t * info, ulong dest, FPW data);
+static int write_data_block (flash_info_t * info, ulong src, ulong dest);
+static int write_word_amd (flash_info_t * info, FPWV * dest, FPW data);
+static void flash_get_offsets (ulong base, flash_info_t * info);
+void inline spin_wheel (void);
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init (void)
+{
+	int i;
+	ulong size = 0;
+	ulong fsize = 0;
+
+	for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
+		memset (&flash_info[i], 0, sizeof (flash_info_t));
+
+		switch (i) {
+		case 0:
+			flash_get_size ((FPW *) CFG_FLASH1_BASE,
+					&flash_info[i]);
+			flash_get_offsets (CFG_FLASH1_BASE, &flash_info[i]);
+			break;
+		case 1:
+			flash_get_size ((FPW *) CFG_FLASH1_BASE,
+					&flash_info[i]);
+			fsize = CFG_FLASH1_BASE + flash_info[i - 1].size;
+			flash_get_offsets (fsize, &flash_info[i]);
+			break;
+		case 2:
+			flash_get_size ((FPW *) CFG_FLASH0_BASE,
+					&flash_info[i]);
+			flash_get_offsets (CFG_FLASH0_BASE, &flash_info[i]);
+			break;
+		case 3:
+			flash_get_size ((FPW *) CFG_FLASH0_BASE,
+					&flash_info[i]);
+			fsize = CFG_FLASH0_BASE + flash_info[i - 1].size;
+			flash_get_offsets (fsize, &flash_info[i]);
+			break;
+		default:
+			panic ("configured to many flash banks!\n");
+			break;
+		}
+		size += flash_info[i].size;
+	}
+
+	/* Protect monitor and environment sectors
+	 */
+#if defined (CFG_AMD_BOOT)
+	flash_protect (FLAG_PROTECT_SET,
+		       CFG_MONITOR_BASE,
+		       CFG_MONITOR_BASE + monitor_flash_len - 1,
+		       &flash_info[2]);
+	flash_protect (FLAG_PROTECT_SET,
+		       CFG_INTEL_BASE,
+		       CFG_INTEL_BASE + monitor_flash_len - 1,
+		       &flash_info[1]);
+#else
+	flash_protect (FLAG_PROTECT_SET,
+		       CFG_MONITOR_BASE,
+		       CFG_MONITOR_BASE + monitor_flash_len - 1,
+		       &flash_info[3]);
+	flash_protect (FLAG_PROTECT_SET,
+		       CFG_AMD_BASE,
+		       CFG_AMD_BASE + monitor_flash_len - 1, &flash_info[0]);
+#endif
+
+	flash_protect (FLAG_PROTECT_SET,
+		       CFG_ENV1_ADDR,
+		       CFG_ENV1_ADDR + CFG_ENV1_SIZE - 1, &flash_info[1]);
+	flash_protect (FLAG_PROTECT_SET,
+		       CFG_ENV_ADDR,
+		       CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[3]);
+
+	return size;
+}
+
+/*-----------------------------------------------------------------------
+ */
+static void flash_get_offsets (ulong base, flash_info_t * info)
+{
+	int i;
+
+	if (info->flash_id == FLASH_UNKNOWN)
+		return;
+
+	if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD) {
+		for (i = 0; i < info->sector_count; i++) {
+			info->start[i] = base + (i * PHYS_AMD_SECT_SIZE);
+			info->protect[i] = 0;
+		}
+	}
+
+	if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
+		for (i = 0; i < info->sector_count; i++) {
+			info->start[i] = base + (i * PHYS_INTEL_SECT_SIZE);
+			info->protect[i] = 0;
+		}
+	}
+}
+
+/*-----------------------------------------------------------------------
+ */
+void flash_print_info (flash_info_t * info)
+{
+	int i;
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		printf ("missing or unknown FLASH type\n");
+		return;
+	}
+
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case FLASH_MAN_INTEL:
+		printf ("INTEL ");
+		break;
+	case FLASH_MAN_AMD:
+		printf ("AMD ");
+		break;
+	default:
+		printf ("Unknown Vendor ");
+		break;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case FLASH_28F128J3A:
+		printf ("28F128J3A\n");
+		break;
+
+	case FLASH_AM040:
+		printf ("AMD29F040B\n");
+		break;
+
+	default:
+		printf ("Unknown Chip Type\n");
+		break;
+	}
+
+	printf ("  Size: %ld MB in %d Sectors\n",
+		info->size >> 20, info->sector_count);
+
+	printf ("  Sector Start Addresses:");
+	for (i = 0; i < info->sector_count; ++i) {
+		if ((i % 5) == 0)
+			printf ("\n   ");
+		printf (" %08lX%s",
+			info->start[i], info->protect[i] ? " (RO)" : "     ");
+	}
+	printf ("\n");
+	return;
+}
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+static ulong flash_get_size (FPW * addr, flash_info_t * info)
+{
+	FPWV value;
+	static int amd = 0;
+
+	/* Write auto select command: read Manufacturer ID */
+	/* Write auto select command sequence and test FLASH answer */
+	addr[FLASH_CYCLE1] = (FPW) 0x00AA00AA;	/* for AMD, Intel ignores this */
+	__asm__ ("sync");
+	addr[FLASH_CYCLE2] = (FPW) 0x00550055;	/* for AMD, Intel ignores this */
+	__asm__ ("sync");
+	addr[FLASH_CYCLE1] = (FPW) 0x00900090;	/* selects Intel or AMD */
+	__asm__ ("sync");
+
+	udelay (100);
+
+	switch (addr[0] & 0xff) {
+
+	case (uchar) AMD_MANUFACT:
+		info->flash_id = FLASH_MAN_AMD;
+		value = addr[1];
+		break;
+
+	case (uchar) INTEL_MANUFACT:
+		info->flash_id = FLASH_MAN_INTEL;
+		value = addr[2];
+		break;
+
+	default:
+		printf ("unknown\n");
+		info->flash_id = FLASH_UNKNOWN;
+		info->sector_count = 0;
+		info->size = 0;
+		addr[0] = (FPW) 0x00FF00FF;	/* restore read mode */
+		return (0);	/* no or unknown flash  */
+	}
+
+	switch (value) {
+
+	case (FPW) INTEL_ID_28F128J3A:
+		info->flash_id += FLASH_28F128J3A;
+		info->sector_count = 64;
+		info->size = 0x00800000;	/* => 16 MB     */
+		break;
+
+	case (FPW) AMD_ID_LV040B:
+		info->flash_id += FLASH_AM040;
+		if (amd == 0) {
+			info->sector_count = 7;
+			info->size = 0x00070000;	/* => 448 KB     */
+			amd = 1;
+		} else {
+			/* for Environment settings */
+			info->sector_count = 1;
+			info->size = PHYS_AMD_SECT_SIZE;	/* => 64 KB     */
+			amd = 0;
+		}
+		break;
+
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		break;
+	}
+
+	if (info->sector_count > CFG_MAX_FLASH_SECT) {
+		printf ("** ERROR: sector count %d > max (%d) **\n",
+			info->sector_count, CFG_MAX_FLASH_SECT);
+		info->sector_count = CFG_MAX_FLASH_SECT;
+	}
+
+	if (value == (FPW) INTEL_ID_28F128J3A)
+		addr[0] = (FPW) 0x00FF00FF;	/* restore read mode */
+	else
+		addr[0] = (FPW) 0x00F000F0;	/* restore read mode */
+
+	return (info->size);
+}
+
+
+/*-----------------------------------------------------------------------
+ */
+int flash_erase (flash_info_t * info, int s_first, int s_last)
+{
+	int flag, prot, sect;
+	ulong type, start, last;
+	int rcode = 0, intel = 0;
+
+	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;
+	}
+
+	type = (info->flash_id & FLASH_VENDMASK);
+	if ((type != FLASH_MAN_INTEL)) {
+		type = (info->flash_id & FLASH_VENDMASK);
+		if ((type != FLASH_MAN_AMD)) {
+			printf ("Can't erase unknown flash type %08lx - aborted\n",
+				info->flash_id);
+			return 1;
+		}
+	}
+
+	if (type == FLASH_MAN_INTEL)
+		intel = 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");
+	}
+
+	start = get_timer (0);
+	last = start;
+
+	/* 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 */
+			FPWV *addr = (FPWV *) (info->start[sect]);
+			FPW status;
+
+			printf ("Erasing sector %2d ... ", sect);
+
+			/* arm simple, non interrupt dependent timer */
+			start = get_timer (0);
+
+			if (intel) {
+				*addr = (FPW) 0x00500050;	/* clear status register */
+				*addr = (FPW) 0x00200020;	/* erase setup */
+				*addr = (FPW) 0x00D000D0;	/* erase confirm */
+			} else {
+				FPWV *base;	/* first address in bank */
+
+				base = (FPWV *) (CFG_AMD_BASE);
+				base[FLASH_CYCLE1] = (FPW) 0x00AA00AA;	/* unlock */
+				base[FLASH_CYCLE2] = (FPW) 0x00550055;	/* unlock */
+				base[FLASH_CYCLE1] = (FPW) 0x00800080;	/* erase mode */
+				base[FLASH_CYCLE1] = (FPW) 0x00AA00AA;	/* unlock */
+				base[FLASH_CYCLE2] = (FPW) 0x00550055;	/* unlock */
+				*addr = (FPW) 0x00300030;	/* erase sector */
+			}
+
+			while (((status =
+				 *addr) & (FPW) 0x00800080) !=
+			       (FPW) 0x00800080) {
+				if (get_timer (start) > CFG_FLASH_ERASE_TOUT) {
+					printf ("Timeout\n");
+					if (intel) {
+						*addr = (FPW) 0x00B000B0;	/* suspend erase     */
+						*addr = (FPW) 0x00FF00FF;	/* reset to read mode */
+					} else
+						*addr = (FPW) 0x00F000F0;	/* reset to read mode */
+
+					rcode = 1;
+					break;
+				}
+			}
+
+			if (intel) {
+				*addr = (FPW) 0x00500050;	/* clear status register cmd.   */
+				*addr = (FPW) 0x00FF00FF;	/* resest to read mode          */
+			} else
+				*addr = (FPW) 0x00F000F0;	/* reset to read mode */
+
+			printf (" done\n");
+		}
+	}
+	return rcode;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ * 4 - Flash not identified
+ */
+
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
+{
+	if (info->flash_id == FLASH_UNKNOWN) {
+		return 4;
+	}
+
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case FLASH_MAN_AMD:
+	    {
+		FPW data = 0;	/* 16 or 32 bit word, matches flash bus width */
+		int bytes;	/* number of bytes to program in current word */
+		int left;	/* number of bytes left to program */
+		int i, res;
+
+		for (left = cnt, res = 0;
+		     left > 0 && res == 0;
+		     addr += sizeof (data), left -=
+		     sizeof (data) - bytes) {
+
+			bytes = addr & (sizeof (data) - 1);
+			addr &= ~(sizeof (data) - 1);
+
+			/* combine source and destination data so can program
+			 * an entire word of 16 or 32 bits
+			 */
+			for (i = 0; i < sizeof (data); i++) {
+				data <<= 8;
+				if (i < bytes || i - bytes >= left)
+					data += *((uchar *) addr + i);
+				else
+					data += *src++;
+			}
+
+			res = write_word_amd (info, (FPWV *) addr,
+					      data);
+		}
+		return res;
+	    }		/* case FLASH_MAN_AMD */
+
+	case FLASH_MAN_INTEL:
+	    {
+		ulong cp, wp;
+		FPW data;
+		int count, i, l, rc, port_width;
+
+		/* get lower word aligned address */
+		wp = addr;
+		port_width = 1;
+
+		/*
+		 * 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 < port_width && cnt > 0; ++i) {
+				data = (data << 8) | *src++;
+				--cnt;
+				++cp;
+			}
+
+			for (; cnt == 0 && i < port_width; ++i, ++cp)
+				data = (data << 8) | (*(uchar *) cp);
+
+			if ((rc =
+			     write_data (info, wp, SWAP (data))) != 0)
+				return (rc);
+			wp += port_width;
+		}
+
+		if (cnt > WR_BLOCK) {
+			/*
+			 * handle word aligned part
+			 */
+			count = 0;
+			while (cnt >= WR_BLOCK) {
+
+				if ((rc =
+				     write_data_block (info,
+						       (ulong) src,
+						       wp)) != 0)
+					return (rc);
+
+				wp += WR_BLOCK;
+				src += WR_BLOCK;
+				cnt -= WR_BLOCK;
+
+				if (count++ > 0x800) {
+					spin_wheel ();
+					count = 0;
+				}
+			}
+		}
+
+		if (cnt < WR_BLOCK) {
+			/*
+			 * handle word aligned part
+			 */
+			count = 0;
+			while (cnt >= port_width) {
+				data = 0;
+				for (i = 0; i < port_width; ++i)
+					data = (data << 8) | *src++;
+
+				if ((rc =
+				     write_data (info, wp,
+						 SWAP (data))) != 0)
+					return (rc);
+
+				wp += port_width;
+				cnt -= port_width;
+				if (count++ > 0x800) {
+					spin_wheel ();
+					count = 0;
+				}
+			}
+		}
+
+		if (cnt == 0)
+			return (0);
+
+		/*
+		 * handle unaligned tail bytes
+		 */
+		data = 0;
+		for (i = 0, cp = wp; i < port_width && cnt > 0;
+		     ++i, ++cp) {
+			data = (data << 8) | *src++;
+			--cnt;
+		}
+
+		for (; i < port_width; ++i, ++cp)
+			data = (data << 8) | (*(uchar *) cp);
+
+		return (write_data (info, wp, SWAP (data)));
+	    }		/* case FLASH_MAN_INTEL */
+
+	}			/* switch */
+	return (0);
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word or halfword to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_data (flash_info_t * info, ulong dest, FPW data)
+{
+	FPWV *addr = (FPWV *) dest;
+	ulong start;
+	int flag;
+
+	/* Check if Flash is (sufficiently) erased */
+	if ((*addr & data) != data) {
+		printf ("not erased at %08lx (%lx)\n", (ulong) addr, *addr);
+		return (2);
+	}
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts ();
+
+	*addr = (FPW) 0x00400040;	/* write setup */
+	*addr = data;
+
+	/* arm simple, non interrupt dependent timer */
+	start = get_timer (0);
+
+	/* wait while polling the status register */
+	while ((*addr & (FPW) 0x00800080) != (FPW) 0x00800080) {
+		if (get_timer (start) > CFG_FLASH_WRITE_TOUT) {
+			*addr = (FPW) 0x00FF00FF;	/* restore read mode */
+			return (1);
+		}
+	}
+
+	*addr = (FPW) 0x00FF00FF;	/* restore read mode */
+
+	return (0);
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word or halfword to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_data_block (flash_info_t * info, ulong src, ulong dest)
+{
+	FPWV *srcaddr = (FPWV *) src;
+	FPWV *dstaddr = (FPWV *) dest;
+	ulong start;
+	int flag, i;
+
+	/* Check if Flash is (sufficiently) erased */
+	for (i = 0; i < WR_BLOCK; i++)
+		if ((*dstaddr++ & 0xff) != 0xff) {
+			printf ("not erased at %08lx (%lx)\n",
+				(ulong) dstaddr, *dstaddr);
+			return (2);
+		}
+
+	dstaddr = (FPWV *) dest;
+
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts ();
+
+	*dstaddr = (FPW) 0x00e800e8;	/* write block setup */
+
+	/* arm simple, non interrupt dependent timer */
+	start = get_timer (0);
+
+	/* wait while polling the status register */
+	while ((*dstaddr & (FPW) 0x00800080) != (FPW) 0x00800080) {
+		if (get_timer (start) > CFG_FLASH_WRITE_TOUT) {
+			*dstaddr = (FPW) 0x00FF00FF;	/* restore read mode */
+			return (1);
+		}
+	}
+
+	*dstaddr = (FPW) 0x001f001f;	/* write 32 to buffer */
+	for (i = 0; i < WR_BLOCK; i++)
+		*dstaddr++ = *srcaddr++;
+
+	dstaddr -= 1;
+	*dstaddr = (FPW) 0x00d000d0;	/* write 32 to buffer */
+
+	/* arm simple, non interrupt dependent timer */
+	start = get_timer (0);
+
+	/* wait while polling the status register */
+	while ((*dstaddr & (FPW) 0x00800080) != (FPW) 0x00800080) {
+		if (get_timer (start) > CFG_FLASH_WRITE_TOUT) {
+			*dstaddr = (FPW) 0x00FF00FF;	/* restore read mode */
+			return (1);
+		}
+	}
+
+	*dstaddr = (FPW) 0x00FF00FF;	/* restore read mode */
+
+	return (0);
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word to Flash for AMD FLASH
+ * A word is 16 or 32 bits, whichever the bus width of the flash bank
+ * (not an individual chip) is.
+ *
+ * returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_word_amd (flash_info_t * info, FPWV * dest, FPW data)
+{
+	ulong start;
+	int flag;
+	int res = 0;		/* result, assume success */
+	FPWV *base;		/* first address in flash bank */
+
+	/* Check if Flash is (sufficiently) erased */
+	if ((*dest & data) != data) {
+		return (2);
+	}
+
+	base = (FPWV *) (CFG_AMD_BASE);
+
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts ();
+
+	base[FLASH_CYCLE1] = (FPW) 0x00AA00AA;	/* unlock */
+	base[FLASH_CYCLE2] = (FPW) 0x00550055;	/* unlock */
+	base[FLASH_CYCLE1] = (FPW) 0x00A000A0;	/* selects program mode */
+
+	*dest = data;		/* start programming the data */
+
+	/* re-enable interrupts if necessary */
+	if (flag)
+		enable_interrupts ();
+
+	start = get_timer (0);
+
+	/* data polling for D7 */
+	while (res == 0
+	       && (*dest & (FPW) 0x00800080) != (data & (FPW) 0x00800080)) {
+		if (get_timer (start) > CFG_FLASH_WRITE_TOUT) {
+			*dest = (FPW) 0x00F000F0;	/* reset bank */
+			res = 1;
+		}
+	}
+
+	return (res);
+}
+
+void inline spin_wheel (void)
+{
+	static int p = 0;
+	static char w[] = "\\/-";
+
+	printf ("\010%c", w[p]);
+	(++p == 3) ? (p = 0) : 0;
+}
+
+/*-----------------------------------------------------------------------
+ * Set/Clear sector's lock bit, returns:
+ * 0 - OK
+ * 1 - Error (timeout, voltage problems, etc.)
+ */
+int flash_real_protect (flash_info_t * info, long sector, int prot)
+{
+	ulong start;
+	int i;
+	int rc = 0;
+	FPWV *addr = (FPWV *) (info->start[sector]);
+	int flag = disable_interrupts ();
+
+	/*
+	 * 29F040B AMD flash does not support software protection/unprotection,
+	 * the only way to protect the AMD flash is marked it as prot bit.
+	 * This flash only support hardware protection, by supply or not supply
+	 * 12vpp to the flash
+	 */
+	if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD) {
+		info->protect[sector] = prot;
+
+		return 0;
+	}
+
+	*addr = INTEL_CLEAR;	/* Clear status register    */
+	if (prot) {		/* Set sector lock bit      */
+		*addr = INTEL_LOCKBIT;	/* Sector lock bit          */
+		*addr = INTEL_PROTECT;	/* set                      */
+	} else {		/* Clear sector lock bit    */
+		*addr = INTEL_LOCKBIT;	/* All sectors lock bits    */
+		*addr = INTEL_CONFIRM;	/* clear                    */
+	}
+
+	start = get_timer (0);
+
+	while ((*addr & INTEL_FINISHED) != INTEL_FINISHED) {
+		if (get_timer (start) > CFG_FLASH_UNLOCK_TOUT) {
+			printf ("Flash lock bit operation timed out\n");
+			rc = 1;
+			break;
+		}
+	}
+
+	if (*addr != INTEL_OK) {
+		printf ("Flash lock bit operation failed at %08X, CSR=%08X\n",
+			(uint) addr, (uint) * addr);
+		rc = 1;
+	}
+
+	if (!rc)
+		info->protect[sector] = prot;
+
+	/*
+	 * Clear lock bit command clears all sectors lock bits, so
+	 * we have to restore lock bits of protected sectors.
+	 */
+	if (!prot) {
+		for (i = 0; i < info->sector_count; i++) {
+			if (info->protect[i]) {
+				start = get_timer (0);
+				addr = (FPWV *) (info->start[i]);
+				*addr = INTEL_LOCKBIT;	/* Sector lock bit  */
+				*addr = INTEL_PROTECT;	/* set              */
+				while ((*addr & INTEL_FINISHED) !=
+				       INTEL_FINISHED) {
+					if (get_timer (start) >
+					    CFG_FLASH_UNLOCK_TOUT) {
+						printf ("Flash lock bit operation timed out\n");
+						rc = 1;
+						break;
+					}
+				}
+			}
+		}
+	}
+
+	if (flag)
+		enable_interrupts ();
+
+	*addr = INTEL_RESET;	/* Reset to read array mode */
+
+	return rc;
+}
diff --git a/board/alaska/serial.c b/board/alaska/serial.c
new file mode 100644
index 0000000..08285b8
--- /dev/null
+++ b/board/alaska/serial.c
@@ -0,0 +1,131 @@
+/*
+ * (C) Copyright 2004, Freescale, Inc
+ * TsiChung Liew, Tsi-Chung.Liew@freescale.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
+ *
+ */
+
+/*
+ * Minimal serial functions needed to use one of the PSC ports
+ * as serial console interface.
+ */
+
+#include <common.h>
+#include <mpc8220.h>
+
+int serial_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+#if defined (CONFIG_EXTUART_CONSOLE)
+	volatile uchar *cpld = (volatile uchar *) CFG_CPLD_BASE;
+#endif
+
+	/* Check CPLD Switch 2 whether is external or internal */
+#if defined (CONFIG_EXTUART_CONSOLE)
+	if ((*cpld & 0x02) == 0x02) {
+		gd->bExtUart = 1;
+		return ext_serial_init ();
+	} else
+#endif
+	{
+#if defined(CONFIG_PSC_CONSOLE)
+		gd->bExtUart = 0;
+		return psc_serial_init ();
+#endif
+	}
+
+	return (0);
+}
+
+void serial_putc (const char c)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+		ext_serial_putc (c);
+#endif
+	} else {
+#if defined(CONFIG_PSC_CONSOLE)
+		psc_serial_putc (c);
+#endif
+	}
+}
+
+void serial_puts (const char *s)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+		ext_serial_puts (s);
+#endif
+	} else {
+#if defined(CONFIG_PSC_CONSOLE)
+		psc_serial_puts (s);
+#endif
+	}
+}
+
+int serial_getc (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+		return ext_serial_getc ();
+#endif
+	} else {
+#if defined(CONFIG_PSC_CONSOLE)
+		return psc_serial_getc ();
+#endif
+	}
+}
+
+int serial_tstc (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+		return ext_serial_tstc ();
+#endif
+	} else {
+#if defined(CONFIG_PSC_CONSOLE)
+		return psc_serial_tstc ();
+#endif
+	}
+}
+
+void serial_setbrg (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+		ext_serial_setbrg ();
+#endif
+	} else {
+#if defined(CONFIG_PSC_CONSOLE)
+		psc_serial_setbrg ();
+#endif
+	}
+}
diff --git a/board/alaska/u-boot.lds b/board/alaska/u-boot.lds
new file mode 100644
index 0000000..6e4a060
--- /dev/null
+++ b/board/alaska/u-boot.lds
@@ -0,0 +1,122 @@
+/*
+ * (C) Copyright 2003-2004
+ * 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
+{
+  /* 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      :
+  {
+    cpu/mpc8220/start.o	(.text)
+    *(.text)
+    *(.fixup)
+    *(.got1)
+    . = ALIGN(16);
+    *(.rodata)
+    *(.rodata1)
+    *(.rodata.str1.4)
+  }
+  .fini      : { *(.fini)    } =0
+  .ctors     : { *(.ctors)   }
+  .dtors     : { *(.dtors)   }
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x0FFF) & 0xFFFFF000;
+  _erotext = .;
+  PROVIDE (erotext = .);
+  .reloc   :
+  {
+    *(.got)
+    _GOT2_TABLE_ = .;
+    *(.got2)
+    _FIXUP_TABLE_ = .;
+    *(.fixup)
+  }
+  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
+  __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
+
+  .data    :
+  {
+    *(.data)
+    *(.data1)
+    *(.sdata)
+    *(.sdata2)
+    *(.dynamic)
+    CONSTRUCTORS
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  __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(4096);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(4096);
+  __init_end = .;
+
+  __bss_start = .;
+  .bss       :
+  {
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+  _end = . ;
+  PROVIDE (end = .);
+}