cm1_qp1 -> cm5200: single U-Boot image for modules from the cm5200 family.

Add the ability for modules from the Schindler cm5200 family to use a
single U-Boot image:
- rename cm1_qp1 to cm5200
- add run-time module detection
- parametrize SDRAM configuration according to the module we are running on

Few minor, board-specific fixes included in this patch:
- better MAC address handling
- updated default environment ('update' command uses +{filesize} now)
- improved error messages in the auto-update code
- allow booting U-Boot from RAM (CFG_RAMBOOT)

Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
Signed-off-by: Piotr Kruszynski <ppk@semihalf.com>
Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>

9 files changed, 634 insertions, 232 deletions

diff --git a/board/cm1_qp1/cm1_qp1.c b/board/cm1_qp1/cm1_qp1.c
deleted file mode 100644
index b49298f64b..0000000000
--- a/board/cm1_qp1/cm1_qp1.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * (C) Copyright 2003-2007
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2004
- * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
- *
- * (C) Copyright 2004-2005
- * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.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 <mpc5xxx.h>
-#include <pci.h>
-#include <asm/processor.h>
-#include <i2c.h>
-#ifdef CONFIG_OF_FLAT_TREE
-#include <ft_build.h>
-#endif /* CONFIG_OF_FLAT_TREE */
-
-#include "fwupdate.h"
-
-#ifndef CFG_RAMBOOT
-/*
- * Helper function to initialize SDRAM controller.
- */
-static void sdram_start(int hi_addr)
-{
-	long hi_addr_bit = hi_addr ? 0x01000000 : 0;
-
-	/* unlock mode register */
-	*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 |
-						hi_addr_bit;
-
-	/* precharge all banks */
-	*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 |
-						hi_addr_bit;
-
-	/* auto refresh */
-	*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 |
-						hi_addr_bit;
-
-	/* auto refresh, second time */
-	*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 |
-						hi_addr_bit;
-
-	/* set mode register */
-	*(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE;
-
-	/* normal operation */
-	*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit;
-}
-#endif /* CFG_RAMBOOT */
-
-/*
- * Initalize SDRAM - configure SDRAM controller, detect memory size.
- */
-long int initdram(int board_type)
-{
-	ulong dramsize = 0;
-#ifndef CFG_RAMBOOT
-	ulong test1, test2;
-
-	/* configure SDRAM start/end for detection */
-	*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001e; /* 2G at 0x0 */
-
-	/* setup config registers */
-	*(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1;
-	*(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2;
-
-	sdram_start(0);
-	test1 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000);
-	sdram_start(1);
-	test2 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000);
-	if (test1 > test2) {
-		sdram_start(0);
-		dramsize = test1;
-	} else
-		dramsize = test2;
-
-	/* memory smaller than 1MB is impossible */
-	if (dramsize < (1 << 20))
-		dramsize = 0;
-
-	/* set SDRAM CS0 size according to the amount of RAM found */
-	if (dramsize > 0) {
-		*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x13 +
-			__builtin_ffs(dramsize >> 20) - 1;
-	} else
-		*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */
-#else /* CFG_RAMBOOT */
-	/* retrieve size of memory connected to SDRAM CS0 */
-	dramsize = *(vu_long *)MPC5XXX_SDRAM_CS0CFG & 0xFF;
-	if (dramsize >= 0x13)
-		dramsize = (1 << (dramsize - 0x13)) << 20;
-	else
-		dramsize = 0;
-#endif /* CFG_RAMBOOT */
-
-	/*
-	 * On MPC5200B we need to set the special configuration delay in the
-	 * DDR controller.  Refer to chapter 8.7.5 SDelay--MBAR + 0x0190 of
-	 * the MPC5200B User's Manual.
-	 */
-	*(vu_long *)MPC5XXX_SDRAM_SDELAY = 0x04;
-	__asm__ volatile ("sync");
-
-	return dramsize;
-}
-
-
-int checkboard(void)
-{
-	puts("Board: CM1.QP1\n");
-	return 0;
-}
-
-
-int board_early_init_r(void)
-{
-	/*
-	 * Now, when we are in RAM, enable flash write access for detection
-	 * process. Note that CS_BOOT cannot be cleared when executing in
-	 * flash.
-	 */
-	*(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
-	return 0;
-}
-
-
-#ifdef CONFIG_POST
-int post_hotkeys_pressed(void)
-{
-	return 0;
-}
-#endif /* CONFIG_POST */
-
-
-#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
-void post_word_store(ulong a)
-{
-	vu_long *save_addr = (vu_long *)(MPC5XXX_SRAM + MPC5XXX_SRAM_POST_SIZE);
-	*save_addr = a;
-}
-
-
-ulong post_word_load(void)
-{
-	vu_long *save_addr = (vu_long *)(MPC5XXX_SRAM + MPC5XXX_SRAM_POST_SIZE);
-	return *save_addr;
-}
-#endif /* CONFIG_POST || CONFIG_LOGBUFFER */
-
-
-#ifdef CONFIG_MISC_INIT_R
-int misc_init_r(void)
-{
-#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
-	uchar buf[6];
-	char str[18];
-
-	/* Read ethaddr from EEPROM */
-	if (i2c_read(CFG_I2C_EEPROM, CONFIG_MAC_OFFSET, 2, buf, 6) == 0) {
-		sprintf(str, "%02X:%02X:%02X:%02X:%02X:%02X",
-			buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
-		/* Check if MAC addr is owned by Schindler */
-		if (strstr(str, "00:06:C3") != str) {
-			printf(LOG_PREFIX "Warning - Illegal MAC address (%s)"
-				" in EEPROM.\n", str);
-			printf(LOG_PREFIX "Using MAC from environment\n");
-		} else {
-			printf(LOG_PREFIX "Using MAC (%s) from I2C EEPROM\n",
-				str);
-			setenv("ethaddr", str);
-		}
-	} else {
-		printf(LOG_PREFIX "Warning - Unable to read MAC from I2C"
-			" device at address %02X:%04X\n", CFG_I2C_EEPROM,
-			CONFIG_MAC_OFFSET);
-		printf(LOG_PREFIX "Using MAC from environment\n");
-	}
-	return 0;
-#endif /* defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) */
-}
-#endif /* CONFIG_MISC_INIT_R */
-
-
-#ifdef CONFIG_LAST_STAGE_INIT
-int last_stage_init(void)
-{
-#ifdef CONFIG_USB_STORAGE
-	cm1_fwupdate();
-#endif /* CONFIG_USB_STORAGE */
-	return 0;
-}
-#endif /* CONFIG_LAST_STAGE_INIT */
-
-
-#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
-void ft_board_setup(void *blob, bd_t *bd)
-{
-	ft_cpu_setup(blob, bd);
-}
-#endif /* defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP) */
diff --git a/board/cm1_qp1/Makefile b/board/cm5200/Makefile
index e7393267e7..8ebdb1aa28 100644
--- a/board/cm1_qp1/Makefile
+++ b/board/cm5200/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS	:= $(BOARD).o cmd_cm1_qp1.o fwupdate.o
+COBJS	:= $(BOARD).o cmd_cm5200.o fwupdate.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
diff --git a/board/cm5200/cm5200.c b/board/cm5200/cm5200.c
new file mode 100644
index 0000000000..6804e33c27
--- /dev/null
+++ b/board/cm5200/cm5200.c
@@ -0,0 +1,425 @@
+/*
+ * (C) Copyright 2003-2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2004
+ * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
+ *
+ * (C) Copyright 2004-2005
+ * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de
+ *
+ * Adapted to U-Boot 1.2 by:
+ *   Bartlomiej Sieka <tur@semihalf.com>:
+ *      - HW ID readout from EEPROM
+ *      - module detection
+ *   Grzegorz Bernacki <gjb@semihalf.com>:
+ *      - run-time SDRAM controller configuration
+ *      - LIBFDT support
+ *
+ * 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 <mpc5xxx.h>
+#include <pci.h>
+#include <asm/processor.h>
+#include <i2c.h>
+#include <linux/ctype.h>
+
+#ifdef CONFIG_OF_LIBFDT
+#include <libfdt.h>
+#include <libfdt_env.h>
+#include <fdt_support.h>
+#endif /* CONFIG_OF_LIBFDT */
+
+
+#include "cm5200.h"
+#include "fwupdate.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static hw_id_t hw_id;
+
+
+#ifndef CFG_RAMBOOT
+/*
+ * Helper function to initialize SDRAM controller.
+ */
+static void sdram_start(int hi_addr, mem_conf_t *mem_conf)
+{
+	long hi_addr_bit = hi_addr ? 0x01000000 : 0;
+
+	/* unlock mode register */
+	*(vu_long *)MPC5XXX_SDRAM_CTRL = mem_conf->control | 0x80000000 |
+						hi_addr_bit;
+
+	/* precharge all banks */
+	*(vu_long *)MPC5XXX_SDRAM_CTRL = mem_conf->control | 0x80000002 |
+						hi_addr_bit;
+
+	/* auto refresh */
+	*(vu_long *)MPC5XXX_SDRAM_CTRL = mem_conf->control | 0x80000004 |
+						hi_addr_bit;
+
+	/* auto refresh, second time */
+	*(vu_long *)MPC5XXX_SDRAM_CTRL = mem_conf->control | 0x80000004 |
+						hi_addr_bit;
+
+	/* set mode register */
+	*(vu_long *)MPC5XXX_SDRAM_MODE = mem_conf->mode;
+
+	/* normal operation */
+	*(vu_long *)MPC5XXX_SDRAM_CTRL = mem_conf->control | hi_addr_bit;
+}
+#endif /* CFG_RAMBOOT */
+
+
+/*
+ * Retrieve memory configuration for a given module. board_type is the index
+ * in hw_id_list[] corresponding to the module we are executing on; we return
+ * SDRAM controller settings approprate for this module.
+ */
+static mem_conf_t* get_mem_config(int board_type)
+{
+	switch(board_type){
+		case CM1_QA:
+			return memory_config[0];
+		case CM11_QA:
+		case CMU1_QA:
+			return memory_config[1];
+		default:
+			printf("ERROR: Unknown module, using a default SDRAM "
+				"configuration - things may not work!!!.\n");
+			return memory_config[0];
+	}
+}
+
+
+/*
+ * Initalize SDRAM - configure SDRAM controller, detect memory size.
+ */
+long int initdram(int board_type)
+{
+	ulong dramsize = 0;
+#ifndef CFG_RAMBOOT
+	ulong test1, test2;
+	mem_conf_t *mem_conf;
+
+	mem_conf = get_mem_config(board_type);
+	
+	/* configure SDRAM start/end for detection */
+	*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001e; /* 2G at 0x0 */
+
+	/* setup config registers */
+	*(vu_long *)MPC5XXX_SDRAM_CONFIG1 = mem_conf->config1;
+	*(vu_long *)MPC5XXX_SDRAM_CONFIG2 = mem_conf->config2;
+
+	sdram_start(0, mem_conf);
+	test1 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000);
+	sdram_start(1, mem_conf);
+	test2 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000);
+	if (test1 > test2) {
+		sdram_start(0, mem_conf);
+		dramsize = test1;
+	} else
+		dramsize = test2;
+
+	/* memory smaller than 1MB is impossible */
+	if (dramsize < (1 << 20))
+		dramsize = 0;
+
+	/* set SDRAM CS0 size according to the amount of RAM found */
+	if (dramsize > 0) {
+		*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x13 +
+			__builtin_ffs(dramsize >> 20) - 1;
+	} else
+		*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */
+#else /* CFG_RAMBOOT */
+	/* retrieve size of memory connected to SDRAM CS0 */
+	dramsize = *(vu_long *)MPC5XXX_SDRAM_CS0CFG & 0xFF;
+	if (dramsize >= 0x13)
+		dramsize = (1 << (dramsize - 0x13)) << 20;
+	else
+		dramsize = 0;
+#endif /* !CFG_RAMBOOT */
+
+	/*
+	 * On MPC5200B we need to set the special configuration delay in the
+	 * DDR controller.  Refer to chapter 8.7.5 SDelay--MBAR + 0x0190 of
+	 * the MPC5200B User's Manual.
+	 */
+	*(vu_long *)MPC5XXX_SDRAM_SDELAY = 0x04;
+	__asm__ volatile ("sync");
+
+	return dramsize;
+}
+
+
+/*
+ * Read module hardware identification data from the I2C EEPROM.
+ */
+static void read_hw_id(hw_id_t hw_id)
+{
+	int i;
+	for (i = 0; i < HW_ID_ELEM_COUNT; ++i)
+		if (i2c_read(CFG_I2C_EEPROM,
+				hw_id_format[i].offset,
+				2,
+				(uchar *)&hw_id[i][0],
+				hw_id_format[i].length) != 0)
+			printf("ERROR: can't read HW ID from EEPROM\n");
+}
+
+
+/*
+ * Identify module we are running on, set gd->board_type to the index in
+ * hw_id_list[] corresponding to the module identifed, or to
+ * CM5200_UNKNOWN_MODULE if we can't identify the module.
+ */
+static void identify_module(hw_id_t hw_id)
+{
+	int i, j, element;
+	char match;
+	gd->board_type = CM5200_UNKNOWN_MODULE;
+	for (i = 0; i < sizeof (hw_id_list) / sizeof (char **); ++i) {
+		match = 1;
+		for (j = 0; j < sizeof (hw_id_identify) / sizeof (int); ++j) {
+			element = hw_id_identify[j];
+			if (strncmp(hw_id_list[i][element],
+					&hw_id[element][0],
+					hw_id_format[element].length) != 0) {
+				match = 0;
+				break;
+			}
+		}
+		if (match) {
+			gd->board_type = i;
+			break;
+		}
+	}
+}
+
+
+/*
+ * Compose string with module name.
+ * buf is assumed to have enough space, and be null-terminated.
+ */
+static void compose_module_name(hw_id_t hw_id, char *buf)
+{
+	char tmp[MODULE_NAME_MAXLEN];
+	strncat(buf, &hw_id[PCB_NAME][0], hw_id_format[PCB_NAME].length);
+	strncat(buf, ".", 1);
+	strncat(buf, &hw_id[FORM][0], hw_id_format[FORM].length);
+	strncat(buf, &hw_id[VERSION][0], hw_id_format[VERSION].length);
+	strncat(buf, " (", 2);
+	strncat(buf, &hw_id[IDENTIFICATION_NUMBER][0],
+		hw_id_format[IDENTIFICATION_NUMBER].length);
+	sprintf(tmp, " / %u.%u)",
+		hw_id[MAJOR_SW_VERSION][0],
+		hw_id[MINOR_SW_VERSION][0]);
+	strcat(buf, tmp);
+}
+
+
+/*
+ * Compose string with hostname.
+ * buf is assumed to have enough space, and be null-terminated.
+ */
+static void compose_hostname(hw_id_t hw_id, char *buf)
+{
+	char *p;
+	strncat(buf, &hw_id[PCB_NAME][0], hw_id_format[PCB_NAME].length);
+	strncat(buf, "_", 1);
+	strncat(buf, &hw_id[FORM][0], hw_id_format[FORM].length);
+	strncat(buf, &hw_id[VERSION][0], hw_id_format[VERSION].length);
+	for (p = buf; *p; ++p)
+		*p = tolower(*p);
+
+}
+
+
+#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
+/*
+ * Update 'model' and 'memory' properties in the blob according to the module
+ * that we are running on.
+ */
+static void ft_blob_update(void *blob, bd_t *bd)
+{
+	int len, ret, nodeoffset = 0;
+	char module_name[MODULE_NAME_MAXLEN] = {0};
+	ulong memory_data[2] = {0};
+
+	compose_module_name(hw_id, module_name);
+	len = strlen(module_name) + 1;
+
+	ret = fdt_setprop(blob, nodeoffset, "model", module_name, len);
+	if (ret < 0)
+	printf("ft_blob_update(): cannot set /model property err:%s\n",
+		fdt_strerror(ret));
+
+	memory_data[0] = cpu_to_be32(bd->bi_memstart);
+	memory_data[1] = cpu_to_be32(bd->bi_memsize);
+
+	nodeoffset = fdt_find_node_by_path (blob, "/memory");
+	if (nodeoffset >= 0) {
+		ret = fdt_setprop(blob, nodeoffset, "reg", memory_data,
+					sizeof(memory_data));
+	if (ret < 0)
+		printf("ft_blob_update): cannot set /memory/reg "
+			"property err:%s\n", fdt_strerror(ret));
+	}
+	else {
+		/* memory node is required in dts */
+		printf("ft_blob_update(): cannot find /memory node "
+		"err:%s\n", fdt_strerror(nodeoffset));
+	}
+}
+#endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */
+
+
+/*
+ * Read HW ID from I2C EEPROM and detect the modue we are running on. Note
+ * that we need to use local variable for readout, because global data is not
+ * writable yet (and we'll have to redo the readout later on).
+ */
+int checkboard(void)
+{
+	hw_id_t hw_id_tmp;
+	char module_name_tmp[MODULE_NAME_MAXLEN] = "";
+
+	/* 
+	 * We need I2C to access HW ID data from EEPROM, so we call i2c_init()
+	 * here despite the fact that it will be called again later on. We
+	 * also use a little trick to silence I2C-related output.
+	 */
+	gd->flags |= GD_FLG_SILENT;
+	i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
+	gd->flags &= ~GD_FLG_SILENT;
+
+	read_hw_id(hw_id_tmp);
+	identify_module(hw_id_tmp);	/* this sets gd->board_type */
+	compose_module_name(hw_id_tmp, module_name_tmp);
+
+	if (gd->board_type != CM5200_UNKNOWN_MODULE)
+		printf("Board: %s\n", module_name_tmp);
+	else
+		printf("Board: unrecognized cm5200 module (%s)\n",
+			module_name_tmp);
+	
+	return 0;
+}
+
+
+int board_early_init_r(void)
+{
+	/*
+	 * Now, when we are in RAM, enable flash write access for detection
+	 * process. Note that CS_BOOT cannot be cleared when executing in
+	 * flash.
+	 */
+	*(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
+
+	/* Now that we can write to global data, read HW ID again. */
+	read_hw_id(hw_id);
+	return 0;
+}
+
+
+#ifdef CONFIG_POST
+int post_hotkeys_pressed(void)
+{
+	return 0;
+}
+#endif /* CONFIG_POST */
+
+
+#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
+void post_word_store(ulong a)
+{
+	vu_long *save_addr = (vu_long *)(MPC5XXX_SRAM + MPC5XXX_SRAM_POST_SIZE);
+	*save_addr = a;
+}
+
+
+ulong post_word_load(void)
+{
+	vu_long *save_addr = (vu_long *)(MPC5XXX_SRAM + MPC5XXX_SRAM_POST_SIZE);
+	return *save_addr;
+}
+#endif /* CONFIG_POST || CONFIG_LOGBUFFER */
+
+
+#ifdef CONFIG_MISC_INIT_R
+int misc_init_r(void)
+{
+#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
+	uchar buf[6];
+	char str[18];
+	char hostname[MODULE_NAME_MAXLEN];
+
+	/* Read ethaddr from EEPROM */
+	if (i2c_read(CFG_I2C_EEPROM, CONFIG_MAC_OFFSET, 2, buf, 6) == 0) {
+		sprintf(str, "%02X:%02X:%02X:%02X:%02X:%02X",
+			buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
+		/* Check if MAC addr is owned by Schindler */
+		if (strstr(str, "00:06:C3") != str)
+			printf(LOG_PREFIX "Warning - Illegal MAC address (%s)"
+				" in EEPROM.\n", str);
+		else {
+			printf(LOG_PREFIX "Using MAC (%s) from I2C EEPROM\n",
+				str);
+			setenv("ethaddr", str);
+		}
+	} else {
+		printf(LOG_PREFIX "Warning - Unable to read MAC from I2C"
+			" device at address %02X:%04X\n", CFG_I2C_EEPROM,
+			CONFIG_MAC_OFFSET);
+	}
+#endif /* defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) */
+	if (!getenv("ethaddr"))
+		printf(LOG_PREFIX "MAC address not set, networking is not "
+					"operational\n");
+
+	/* set the hostname appropriate to the module we're running on */
+	compose_hostname(hw_id, hostname);
+	setenv("hostname", hostname);
+
+	return 0;
+}
+#endif /* CONFIG_MISC_INIT_R */
+
+
+#ifdef CONFIG_LAST_STAGE_INIT
+int last_stage_init(void)
+{
+#ifdef CONFIG_USB_STORAGE
+	cm5200_fwupdate();
+#endif /* CONFIG_USB_STORAGE */
+	return 0;
+}
+#endif /* CONFIG_LAST_STAGE_INIT */
+
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+	ft_cpu_setup(blob, bd);
+	ft_blob_update(blob, bd);
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
diff --git a/board/cm5200/cm5200.h b/board/cm5200/cm5200.h
new file mode 100644
index 0000000000..a6cbc88f47
--- /dev/null
+++ b/board/cm5200/cm5200.h
@@ -0,0 +1,184 @@
+/*
+ * (C) Copyright 2007 DENX Software Engineering
+ *
+ * Author: Bartlomiej Sieka <tur@semihalf.com>
+ * Author: Grzegorz Bernacki <gjb@semihalf.com>
+ *
+ * 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 _CM5200_H
+#define _CM5200_H
+
+
+/*
+ * Definitions and declarations for the modules of the cm5200 platform. Mostly
+ * related to reading the hardware identification data (HW ID) from the I2C
+ * EEPROM, detection of the particular module we are executing on, and
+ * appropriate SDRAM controller initialization.
+ */
+
+
+#define CM5200_UNKNOWN_MODULE	0xffffffff
+
+enum {
+	DEVICE_NAME,		/* 0 */
+	GENERATION,		/* 1 */
+	PCB_NAME,		/* 2 */
+	FORM,			/* 3 */
+	VERSION,		/* 4 */
+	IDENTIFICATION_NUMBER,	/* 5 */
+	MAJOR_SW_VERSION,	/* 6 */
+	MINOR_SW_VERSION,	/* 7 */
+	/* add new alements above this line */
+	HW_ID_ELEM_COUNT	/* count */
+};
+
+/*
+ * Sect. 4.1 "CM1.Q/CMU1.Q Supervisory Microcontroller Interface Definition"
+ */
+
+#define DEVICE_NAME_OFFSET		0x02
+#define GENERATION_OFFSET		0x0b
+#define PCB_NAME_OFFSET			0x0c
+#define FORM_OFFSET			0x15
+#define VERSION_OFFSET			0x16
+#define IDENTIFICATION_NUMBER_OFFSET	0x19
+#define MAJOR_SW_VERSION_OFFSET		0x0480
+#define MINOR_SW_VERSION_OFFSET		0x0481
+
+
+#define DEVICE_NAME_LEN			0x09
+#define GENERATION_LEN			0x01
+#define PCB_NAME_LEN			0x09
+#define FORM_LEN			0x01
+#define VERSION_LEN			0x03
+#define IDENTIFICATION_NUMBER_LEN	0x09
+#define MAJOR_SW_VERSION_LEN		0x01
+#define MINOR_SW_VERSION_LEN		0x01
+
+#define HW_ID_ELEM_MAXLEN		0x09	/* MAX(XXX_LEN) */
+
+/* entire HW ID in EEPROM is 64 bytes, so longer module name is unlikely */
+#define MODULE_NAME_MAXLEN		64
+
+
+/* storage for HW ID read from EEPROM */
+typedef char hw_id_t[HW_ID_ELEM_COUNT][HW_ID_ELEM_MAXLEN];
+
+
+/* HW ID layout in EEPROM */
+static struct {
+	unsigned int offset;
+	unsigned int length;
+} hw_id_format[HW_ID_ELEM_COUNT] = {
+	{DEVICE_NAME_OFFSET,		DEVICE_NAME_LEN},
+	{GENERATION_OFFSET,		GENERATION_LEN},
+	{PCB_NAME_OFFSET,		PCB_NAME_LEN},
+	{FORM_OFFSET,			FORM_LEN},
+	{VERSION_OFFSET,		VERSION_LEN},
+	{IDENTIFICATION_NUMBER_OFFSET,	IDENTIFICATION_NUMBER_LEN},
+	{MAJOR_SW_VERSION_OFFSET,	MAJOR_SW_VERSION_LEN},
+	{MINOR_SW_VERSION_OFFSET,	MINOR_SW_VERSION_LEN},
+};
+
+
+/* HW ID data found in EEPROM on supported modules */
+static char *cm1_qa_hw_id[HW_ID_ELEM_COUNT] = {
+	"CM",		/* DEVICE_NAME */
+	"1",		/* GENERATION */
+	"CM1",		/* PCB_NAME */
+	"Q",		/* FORM */
+	"A",		/* VERSION */
+	"591881",	/* IDENTIFICATION_NUMBER */
+	"",		/* MAJOR_SW_VERSION */
+	"",		/* MINOR_SW_VERSION */
+};
+
+static char *cm11_qa_hw_id[HW_ID_ELEM_COUNT] = {
+	"CM",		/* DEVICE_NAME */
+	"1",		/* GENERATION */
+	"CM11",		/* PCB_NAME */
+	"Q",		/* FORM */
+	"A",		/* VERSION */
+	"594200",	/* IDENTIFICATION_NUMBER */
+	"",		/* MAJOR_SW_VERSION */
+	"",		/* MINOR_SW_VERSION */
+};
+
+static char *cmu1_qa_hw_id[HW_ID_ELEM_COUNT] = {
+	"CMU",		/* DEVICE_NAME */
+	"1",		/* GENERATION */
+	"CMU1",		/* PCB_NAME */
+	"Q",		/* FORM */
+	"A",		/* VERSION */
+	"594128",	/* IDENTIFICATION_NUMBER */
+	"",		/* MAJOR_SW_VERSION */
+	"",		/* MINOR_SW_VERSION */
+};
+
+
+/* list of known modules */
+static char **hw_id_list[] = {
+	cm1_qa_hw_id,
+	cm11_qa_hw_id,
+	cmu1_qa_hw_id,
+};
+
+/* indices to the above list - keep in sync */ 
+enum {
+	CM1_QA,
+	CM11_QA,
+	CMU1_QA,
+};
+
+
+/* identify modules based on these hw id elements */
+static int hw_id_identify[] = {
+	PCB_NAME,
+	FORM,
+	VERSION,
+};
+
+
+/* Registers' settings for SDRAM controller intialization */
+typedef struct {
+	ulong mode;
+	ulong control;
+	ulong config1;
+	ulong config2;
+} mem_conf_t;
+
+static mem_conf_t k4s561632E = {
+	0x00CD0000,      /* CASL 3, burst length 8 */
+	0x514F0000,
+	0xE2333900,
+	0x8EE70000
+};
+
+static mem_conf_t mt48lc32m16a2 = {
+	0x00CD0000,      /* CASL 3, burst length 8 */
+	0x514F0000,
+	0xD2322800,
+	0x8AD70000
+};
+
+static mem_conf_t* memory_config[] = {
+	&k4s561632E,
+	&mt48lc32m16a2
+};
+
+#endif /* _CM5200_H */
diff --git a/board/cm1_qp1/cmd_cm1_qp1.c b/board/cm5200/cmd_cm5200.c
index 4a01d2a7f4..5119a99ca2 100644
--- a/board/cm1_qp1/cmd_cm1_qp1.c
+++ b/board/cm5200/cmd_cm5200.c
@@ -1,5 +1,7 @@
 /*
- *  (C) Copyright 2007 Markus Kappeler <markus.kappeler@objectxp.com>
+ * (C) Copyright 2007 Markus Kappeler <markus.kappeler@objectxp.com>
+ *
+ * Adapted for U-Boot 1.2 by Piotr Kruszynski <ppk@semihalf.com> 
  *
  * See file CREDITS for list of people who contributed to this
  * project.
diff --git a/board/cm1_qp1/config.mk b/board/cm5200/config.mk
index 7f061391a2..7f061391a2 100644
--- a/board/cm1_qp1/config.mk
+++ b/board/cm5200/config.mk
diff --git a/board/cm1_qp1/fwupdate.c b/board/cm5200/fwupdate.c
index 637375e598..19aa94a5a0 100644
--- a/board/cm1_qp1/fwupdate.c
+++ b/board/cm5200/fwupdate.c
@@ -1,11 +1,11 @@
 /*
  * (C) Copyright 2007 Schindler Lift Inc.
- * (C) Copyright 2007 Semihalf
+ * (C) Copyright 2007 DENX Software Engineering
  *
  * Author: Michel Marti <mma@objectxp.com>
  * Adapted for U-Boot 1.2 by Piotr Kruszynski <ppk@semihalf.com>:
- * - code clean-up
- * - bugfix for overwriting bootargs by user
+ *   - code clean-up
+ *   - bugfix for overwriting bootargs by user
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -41,7 +41,7 @@ extern int do_fat_fsload(cmd_tbl_t *, int, int, char *[]);
 
 static int load_rescue_image(ulong);
 
-void cm1_fwupdate(void)
+void cm5200_fwupdate(void)
 {
 	cmd_tbl_t *bcmd;
 	char *rsargs;
@@ -144,6 +144,7 @@ static int load_rescue_image(ulong addr)
 				if (do_fat_read(fwdir, NULL, 0, LS_NO) == -1) {
 					FW_DEBUG("No NX rescue image on "
 						"partition %d.\n", i);
+					partno = -2;
 				} else {
 					partno = i;
 					FW_DEBUG("Partition %d contains "
@@ -154,8 +155,20 @@ static int load_rescue_image(ulong addr)
 		}
 	}
 
-	if (partno == -1) {
-		printf(LOG_PREFIX "Error: No valid (FAT) partition detected\n");
+	if (partno < 0) {
+		switch (partno) {
+		case -1:
+			printf(LOG_PREFIX "Error: No valid (FAT) partition "
+				"detected\n");
+			break;
+		case -2:
+			printf(LOG_PREFIX "Error: No NX rescue image on FAT "
+				"partition\n");
+			break;
+		default:
+			printf(LOG_PREFIX "Error: Failed with code %d\n",
+				partno);
+		}
 		usb_stop();
 		return 1;
 	}
diff --git a/board/cm1_qp1/fwupdate.h b/board/cm5200/fwupdate.h
index 119c2d691c..4e3f1e164a 100644
--- a/board/cm1_qp1/fwupdate.h
+++ b/board/cm5200/fwupdate.h
@@ -26,7 +26,7 @@
 #define __FW_UPDATE_H
 
 /* Default prefix for output messages */
-#define LOG_PREFIX	"CM1:   "
+#define LOG_PREFIX	"CM5200:"
 
 /* Extra debug macro */
 #ifdef CONFIG_FWUPDATE_DEBUG
@@ -42,6 +42,6 @@
 #define RS_BOOTARGS	"ramdisk=8192K"
 
 /* Main function for fwupdate */
-void cm1_fwupdate(void);
+void cm5200_fwupdate(void);
 
 #endif /* __FW_UPDATE_H */
diff --git a/board/cm1_qp1/u-boot.lds b/board/cm5200/u-boot.lds
index 8fa9c0f7ed..8fa9c0f7ed 100644
--- a/board/cm1_qp1/u-boot.lds
+++ b/board/cm5200/u-boot.lds