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* Patch by Bernhard Kuhn, 28 Nov 2003:
add support for Coldfire CPU
add support for Motorola M5272C3 and M5282EVB boards

wdenk 20 лет назад
Родитель
Сommit
4e5ca3eb67

+ 4 - 0
CHANGELOG

@@ -2,6 +2,10 @@
 Changes since U-Boot 1.0.0:
 ======================================================================
 
+* Patch by Bernhard Kuhn, 28 Nov 2003:
+  add support for Coldfire CPU
+  add support for Motorola M5272C3 and M5282EVB boards
+
 * Patch by Pierre Aubert, 24 Nov 2003:
   - add a return value for the fpga command
   - add ide_preinit() function called in ide_init if CONFIG_IDE_PREINIT

+ 4 - 0
CREDITS

@@ -195,6 +195,10 @@ E: Raghu.Krishnaprasad@fci.com
 D: Support for Adder-II MPC852T evaluation board
 W: http://www.forcecomputers.com
 
+N: Bernhard Kuhn
+E: bkuhn@metrowerks.com
+D Support for Coldfire CPU; Support for Motorola M5272C3 and M5282EVB boards
+
 N: Thomas Lange
 E: thomas@corelatus.se
 D: Support for GTH and dbau1x00 boards; lots of PCMCIA fixes

+ 16 - 0
Makefile

@@ -72,6 +72,9 @@ endif
 ifeq ($(ARCH),nios)
 CROSS_COMPILE = nios-elf-
 endif
+ifeq ($(ARCH),m68k)
+CROSS_COMPILE = m68k-elf-
+endif
 endif
 endif
 
@@ -802,6 +805,19 @@ TQM8265_AA_config:  unconfig
 ZPC1900_config: unconfig
 	@./mkconfig $(@:_config=) ppc mpc8260 zpc1900
 
+#========================================================================
+# M68K
+#========================================================================
+#########################################################################
+## Coldfire
+#########################################################################
+
+M5272C3_config :		unconfig
+	@./mkconfig $(@:_config=) m68k coldfire m5272c3
+
+M5282EVB_config :		unconfig
+	@./mkconfig $(@:_config=) m68k coldfire m5282evb
+
 #########################################################################
 ## MPC85xx Systems
 #########################################################################

+ 40 - 0
board/m5272c3/Makefile

@@ -0,0 +1,40 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	= $(BOARD).o flash.o
+
+$(LIB):	.depend $(OBJS)
+	$(AR) crv $@ $^
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################

+ 25 - 0
board/m5272c3/config.mk

@@ -0,0 +1,25 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+# Coldfire contribution by Bernhard Kuhn <bkuhn@metrowerks.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
+#
+
+TEXT_BASE = 0x3e0000

+ 378 - 0
board/m5272c3/flash.c

@@ -0,0 +1,378 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+#define PHYS_FLASH_1 CFG_FLASH_BASE
+#define FLASH_BANK_SIZE 0x200000
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+
+void flash_print_info (flash_info_t * info)
+{
+	int i;
+
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case (AMD_MANUFACT & FLASH_VENDMASK):
+		printf ("AMD: ");
+		break;
+	default:
+		printf ("Unknown Vendor ");
+		break;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case (AMD_ID_PL160CB & FLASH_TYPEMASK):
+		printf ("AM29PL160CB (16Mbit)\n");
+		break;
+	default:
+		printf ("Unknown Chip Type\n");
+		goto Done;
+		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");
+
+      Done:
+}
+
+
+unsigned long flash_init (void)
+{
+	int i, j;
+	ulong size = 0;
+
+	for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
+		ulong flashbase = 0;
+
+		flash_info[i].flash_id =
+			(AMD_MANUFACT & FLASH_VENDMASK) |
+			(AMD_ID_PL160CB & FLASH_TYPEMASK);
+		flash_info[i].size = FLASH_BANK_SIZE;
+		flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
+		memset (flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
+		if (i == 0)
+			flashbase = PHYS_FLASH_1;
+		else
+			panic ("configured to many flash banks!\n");
+
+		for (j = 0; j < flash_info[i].sector_count; j++) {
+			if (j == 0) {
+				/* 1st is 16 KiB */
+				flash_info[i].start[j] = flashbase;
+			}
+			if ((j >= 1) && (j <= 2)) {
+				/* 2nd and 3rd are 8 KiB */
+				flash_info[i].start[j] =
+					flashbase + 0x4000 + 0x2000 * (j - 1);
+			}
+			if (j == 3) {
+				/* 4th is 224 KiB */
+				flash_info[i].start[j] = flashbase + 0x8000;
+			}
+			if ((j >= 4) && (j <= 10)) {
+				/* rest is 256 KiB */
+				flash_info[i].start[j] =
+					flashbase + 0x40000 + 0x40000 * (j -
+									 4);
+			}
+		}
+		size += flash_info[i].size;
+	}
+
+	flash_protect (FLAG_PROTECT_SET,
+		       CFG_FLASH_BASE,
+		       CFG_FLASH_BASE + 0x3ffff, &flash_info[0]);
+
+	return size;
+}
+
+
+#define CMD_READ_ARRAY		0x00F0
+#define CMD_UNLOCK1		0x00AA
+#define CMD_UNLOCK2		0x0055
+#define CMD_ERASE_SETUP		0x0080
+#define CMD_ERASE_CONFIRM	0x0030
+#define CMD_PROGRAM		0x00A0
+#define CMD_UNLOCK_BYPASS	0x0020
+
+#define MEM_FLASH_ADDR1		(*(volatile u16 *)(CFG_FLASH_BASE + (0x00000555<<1)))
+#define MEM_FLASH_ADDR2		(*(volatile u16 *)(CFG_FLASH_BASE + (0x000002AA<<1)))
+
+#define BIT_ERASE_DONE		0x0080
+#define BIT_RDY_MASK		0x0080
+#define BIT_PROGRAM_ERROR	0x0020
+#define BIT_TIMEOUT		0x80000000	/* our flag */
+
+#define READY 1
+#define ERR   2
+#define TMO   4
+
+
+int flash_erase (flash_info_t * info, int s_first, int s_last)
+{
+	ulong result;
+	int iflag, cflag, prot, sect;
+	int rc = ERR_OK;
+	int chip1;
+
+	/* first look for protection bits */
+
+	if (info->flash_id == FLASH_UNKNOWN)
+		return ERR_UNKNOWN_FLASH_TYPE;
+
+	if ((s_first < 0) || (s_first > s_last)) {
+		return ERR_INVAL;
+	}
+
+	if ((info->flash_id & FLASH_VENDMASK) !=
+	    (AMD_MANUFACT & FLASH_VENDMASK)) {
+		return ERR_UNKNOWN_FLASH_VENDOR;
+	}
+
+	prot = 0;
+	for (sect = s_first; sect <= s_last; ++sect) {
+		if (info->protect[sect]) {
+			prot++;
+		}
+	}
+	if (prot)
+		return ERR_PROTECTED;
+
+	/*
+	 * Disable interrupts which might cause a timeout
+	 * here. Remember that our exception vectors are
+	 * at address 0 in the flash, and we don't want a
+	 * (ticker) exception to happen while the flash
+	 * chip is in programming mode.
+	 */
+
+	cflag = icache_status ();
+	icache_disable ();
+	iflag = disable_interrupts ();
+
+	printf ("\n");
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect <= s_last && !ctrlc (); sect++) {
+		printf ("Erasing sector %2d ... ", sect);
+
+		/* arm simple, non interrupt dependent timer */
+		set_timer (0);
+
+		if (info->protect[sect] == 0) {	/* not protected */
+			volatile u16 *addr =
+				(volatile u16 *) (info->start[sect]);
+
+			MEM_FLASH_ADDR1 = CMD_UNLOCK1;
+			MEM_FLASH_ADDR2 = CMD_UNLOCK2;
+			MEM_FLASH_ADDR1 = CMD_ERASE_SETUP;
+
+			MEM_FLASH_ADDR1 = CMD_UNLOCK1;
+			MEM_FLASH_ADDR2 = CMD_UNLOCK2;
+			*addr = CMD_ERASE_CONFIRM;
+
+			/* wait until flash is ready */
+			chip1 = 0;
+
+			do {
+				result = *addr;
+
+				/* check timeout */
+				if (get_timer (0) > CFG_FLASH_ERASE_TOUT) {
+					MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
+					chip1 = TMO;
+					break;
+				}
+
+				if (!chip1
+				    && (result & 0xFFFF) & BIT_ERASE_DONE)
+					chip1 = READY;
+
+			} while (!chip1);
+
+			MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
+
+			if (chip1 == ERR) {
+				rc = ERR_PROG_ERROR;
+				goto outahere;
+			}
+			if (chip1 == TMO) {
+				rc = ERR_TIMOUT;
+				goto outahere;
+			}
+
+			printf ("ok.\n");
+		} else {	/* it was protected */
+
+			printf ("protected!\n");
+		}
+	}
+
+	if (ctrlc ())
+		printf ("User Interrupt!\n");
+
+      outahere:
+	/* allow flash to settle - wait 10 ms */
+	udelay (10000);
+
+	if (iflag)
+		enable_interrupts ();
+
+	if (cflag)
+		icache_enable ();
+
+	return rc;
+}
+
+
+volatile static int write_word (flash_info_t * info, ulong dest, ulong data)
+{
+	volatile u16 *addr = (volatile u16 *) dest;
+	ulong result;
+	int rc = ERR_OK;
+	int cflag, iflag;
+	int chip1;
+
+	/*
+	 * Check if Flash is (sufficiently) erased
+	 */
+	result = *addr;
+	if ((result & data) != data)
+		return ERR_NOT_ERASED;
+
+
+	/*
+	 * Disable interrupts which might cause a timeout
+	 * here. Remember that our exception vectors are
+	 * at address 0 in the flash, and we don't want a
+	 * (ticker) exception to happen while the flash
+	 * chip is in programming mode.
+	 */
+
+	cflag = icache_status ();
+	icache_disable ();
+	iflag = disable_interrupts ();
+
+	MEM_FLASH_ADDR1 = CMD_UNLOCK1;
+	MEM_FLASH_ADDR2 = CMD_UNLOCK2;
+	MEM_FLASH_ADDR1 = CMD_PROGRAM;
+	*addr = data;
+
+	/* arm simple, non interrupt dependent timer */
+	set_timer (0);
+
+	/* wait until flash is ready */
+	chip1 = 0;
+	do {
+		result = *addr;
+
+		/* check timeout */
+		if (get_timer (0) > CFG_FLASH_ERASE_TOUT) {
+			chip1 = ERR | TMO;
+			break;
+		}
+		if (!chip1 && ((result & 0x80) == (data & 0x80)))
+			chip1 = READY;
+
+	} while (!chip1);
+
+	*addr = CMD_READ_ARRAY;
+
+	if (chip1 == ERR || *addr != data)
+		rc = ERR_PROG_ERROR;
+
+	if (iflag)
+		enable_interrupts ();
+
+	if (cflag)
+		icache_enable ();
+
+	return rc;
+}
+
+
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
+{
+	ulong wp, data;
+	int rc;
+
+	if (addr & 1) {
+		printf ("unaligned destination not supported\n");
+		return ERR_ALIGN;
+	}
+
+#if 0
+	if (cnt & 1) {
+		printf ("odd transfer sizes not supported\n");
+		return ERR_ALIGN;
+	}
+#endif
+
+	wp = addr;
+
+	if (addr & 1) {
+		data = (*((volatile u8 *) addr) << 8) | *((volatile u8 *)
+							  src);
+		if ((rc = write_word (info, wp - 1, data)) != 0) {
+			return (rc);
+		}
+		src += 1;
+		wp += 1;
+		cnt -= 1;
+	}
+
+	while (cnt >= 2) {
+		data = *((volatile u16 *) src);
+		if ((rc = write_word (info, wp, data)) != 0) {
+			return (rc);
+		}
+		src += 2;
+		wp += 2;
+		cnt -= 2;
+	}
+
+	if (cnt == 1) {
+		data = (*((volatile u8 *) src) << 8) |
+			*((volatile u8 *) (wp + 1));
+		if ((rc = write_word (info, wp, data)) != 0) {
+			return (rc);
+		}
+		src += 1;
+		wp += 1;
+		cnt -= 1;
+	}
+
+	return ERR_OK;
+}

+ 35 - 0
board/m5272c3/m5272c3.c

@@ -0,0 +1,35 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+int checkboard (void)
+{
+	puts ("MOTOROLA MCF5272C3 Evaluation Board\n");
+	return 0;
+}
+
+long int initdram (int board_type)
+{
+	return 0x400000;
+}

+ 135 - 0
board/m5272c3/u-boot.lds

@@ -0,0 +1,135 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_ARCH(m68k)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
+/* Do we need any of these for elf?
+   __DYNAMIC = 0;    */
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = + SIZEOF_HEADERS;
+  .interp : { *(.interp) }
+  .hash          : { *(.hash)		}
+  .dynsym        : { *(.dynsym)		}
+  .dynstr        : { *(.dynstr)		}
+  .rel.text      : { *(.rel.text)		}
+  .rela.text     : { *(.rela.text) 	}
+  .rel.data      : { *(.rel.data)		}
+  .rela.data     : { *(.rela.data) 	}
+  .rel.rodata    : { *(.rel.rodata) 	}
+  .rela.rodata   : { *(.rela.rodata) 	}
+  .rel.got       : { *(.rel.got)		}
+  .rela.got      : { *(.rela.got)		}
+  .rel.ctors     : { *(.rel.ctors)	}
+  .rela.ctors    : { *(.rela.ctors)	}
+  .rel.dtors     : { *(.rel.dtors)	}
+  .rela.dtors    : { *(.rela.dtors)	}
+  .rel.bss       : { *(.rel.bss)		}
+  .rela.bss      : { *(.rela.bss)		}
+  .rel.plt       : { *(.rel.plt)		}
+  .rela.plt      : { *(.rela.plt)		}
+  .init          : { *(.init)	}
+  .plt : { *(.plt) }
+  .text      :
+  {
+    /* WARNING - the following is hand-optimized to fit within	*/
+    /* the sector layout of our flash chips!	XXX FIXME XXX	*/
+
+    cpu/coldfire/start.o	(.text)
+    common/dlmalloc.o	(.text)
+    lib_generic/string.o	(.text)
+    lib_generic/vsprintf.o	(.text)
+    lib_generic/crc32.o	(.text)
+    lib_generic/zlib.o	(.text)
+
+/*    . = env_offset; */
+    common/environment.o(.text)
+
+    *(.text)
+    *(.fixup)
+    *(.got1)
+  }
+  _etext = .;
+  PROVIDE (etext = .);
+  .rodata    :
+  {
+    *(.rodata)
+    *(.rodata1)
+  }
+  .fini      : { *(.fini)    } =0
+  .ctors     : { *(.ctors)   }
+  .dtors     : { *(.dtors)   }
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x00FF) & 0xFFFFFF00;
+  _erotext = .;
+  PROVIDE (erotext = .);
+  .reloc   :
+  {
+    *(.got)
+    _GOT2_TABLE_ = .;
+    *(.got2)
+    _FIXUP_TABLE_ = .;
+    *(.fixup)
+  }
+  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+  __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+  .data    :
+  {
+    *(.data)
+    *(.data1)
+    *(.sdata)
+    *(.sdata2)
+    *(.dynamic)
+    CONSTRUCTORS
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  . = ALIGN(256);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(256);
+  __init_end = .;
+
+  __bss_start = .;
+  .bss       :
+  {
+   _sbss = .;
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+   . = ALIGN(4);
+   _ebss = .;
+  }
+  _end = . ;
+  PROVIDE (end = .);
+}

+ 130 - 0
board/m5272c3/u-boot.lds.debug

@@ -0,0 +1,130 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_ARCH(powerpc)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
+/* Do we need any of these for elf?
+   __DYNAMIC = 0;    */
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = + SIZEOF_HEADERS;
+  .interp : { *(.interp) }
+  .hash          : { *(.hash)		}
+  .dynsym        : { *(.dynsym)		}
+  .dynstr        : { *(.dynstr)		}
+  .rel.text      : { *(.rel.text)		}
+  .rela.text     : { *(.rela.text) 	}
+  .rel.data      : { *(.rel.data)		}
+  .rela.data     : { *(.rela.data) 	}
+  .rel.rodata    : { *(.rel.rodata) 	}
+  .rela.rodata   : { *(.rela.rodata) 	}
+  .rel.got       : { *(.rel.got)		}
+  .rela.got      : { *(.rela.got)		}
+  .rel.ctors     : { *(.rel.ctors)	}
+  .rela.ctors    : { *(.rela.ctors)	}
+  .rel.dtors     : { *(.rel.dtors)	}
+  .rela.dtors    : { *(.rela.dtors)	}
+  .rel.bss       : { *(.rel.bss)		}
+  .rela.bss      : { *(.rela.bss)		}
+  .rel.plt       : { *(.rel.plt)		}
+  .rela.plt      : { *(.rela.plt)		}
+  .init          : { *(.init)	}
+  .plt : { *(.plt) }
+  .text      :
+  {
+    /* WARNING - the following is hand-optimized to fit within	*/
+    /* the sector layout of our flash chips!	XXX FIXME XXX	*/
+
+    cpu/mpc8xx/start.o	(.text)
+    common/dlmalloc.o	(.text)
+    ppc/vsprintf.o	(.text)
+    ppc/crc32.o		(.text)
+
+    . = env_offset;
+    common/environment.o(.text)
+
+    *(.text)
+    *(.fixup)
+    *(.got1)
+  }
+  _etext = .;
+  PROVIDE (etext = .);
+  .rodata    :
+  {
+    *(.rodata)
+    *(.rodata1)
+  }
+  .fini      : { *(.fini)    } =0
+  .ctors     : { *(.ctors)   }
+  .dtors     : { *(.dtors)   }
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x0FFF) & 0xFFFFF000;
+  _erotext = .;
+  PROVIDE (erotext = .);
+  .reloc   :
+  {
+    *(.got)
+    _GOT2_TABLE_ = .;
+    *(.got2)
+    _FIXUP_TABLE_ = .;
+    *(.fixup)
+  }
+  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+  __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+  .data    :
+  {
+    *(.data)
+    *(.data1)
+    *(.sdata)
+    *(.sdata2)
+    *(.dynamic)
+    CONSTRUCTORS
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  . = ALIGN(4096);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(4096);
+  __init_end = .;
+
+  __bss_start = .;
+  .bss       :
+  {
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+  _end = . ;
+  PROVIDE (end = .);
+}

+ 40 - 0
board/m5282evb/Makefile

@@ -0,0 +1,40 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	= $(BOARD).o flash.o
+
+$(LIB):	.depend $(OBJS)
+	$(AR) crv $@ $^
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################

+ 25 - 0
board/m5282evb/config.mk

@@ -0,0 +1,25 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+# Coldfire contribution by Bernhard Kuhn <bkuhn@metrowerks.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
+#
+
+TEXT_BASE = 0x3e0000

+ 378 - 0
board/m5282evb/flash.c

@@ -0,0 +1,378 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+#define PHYS_FLASH_1 CFG_FLASH_BASE
+#define FLASH_BANK_SIZE 0x200000
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+
+void flash_print_info (flash_info_t * info)
+{
+	int i;
+
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case (AMD_MANUFACT & FLASH_VENDMASK):
+		printf ("AMD: ");
+		break;
+	default:
+		printf ("Unknown Vendor ");
+		break;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case (AMD_ID_PL160CB & FLASH_TYPEMASK):
+		printf ("AM29PL160CB (16Mbit)\n");
+		break;
+	default:
+		printf ("Unknown Chip Type\n");
+		goto Done;
+		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");
+
+      Done:
+}
+
+
+unsigned long flash_init (void)
+{
+	int i, j;
+	ulong size = 0;
+
+	for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
+		ulong flashbase = 0;
+
+		flash_info[i].flash_id =
+			(AMD_MANUFACT & FLASH_VENDMASK) |
+			(AMD_ID_PL160CB & FLASH_TYPEMASK);
+		flash_info[i].size = FLASH_BANK_SIZE;
+		flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
+		memset (flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
+		if (i == 0)
+			flashbase = PHYS_FLASH_1;
+		else
+			panic ("configured to many flash banks!\n");
+
+		for (j = 0; j < flash_info[i].sector_count; j++) {
+			if (j == 0) {
+				/* 1st is 16 KiB */
+				flash_info[i].start[j] = flashbase;
+			}
+			if ((j >= 1) && (j <= 2)) {
+				/* 2nd and 3rd are 8 KiB */
+				flash_info[i].start[j] =
+					flashbase + 0x4000 + 0x2000 * (j - 1);
+			}
+			if (j == 3) {
+				/* 4th is 32 KiB */
+				flash_info[i].start[j] = flashbase + 0x8000;
+			}
+			if ((j >= 4) && (j <= 34)) {
+				/* rest is 256 KiB */
+				flash_info[i].start[j] =
+					flashbase + 0x10000 + 0x10000 * (j -
+									 4);
+			}
+		}
+		size += flash_info[i].size;
+	}
+
+	flash_protect (FLAG_PROTECT_SET,
+		       CFG_FLASH_BASE,
+		       CFG_FLASH_BASE + 0xffff, &flash_info[0]);
+
+	return size;
+}
+
+
+#define CMD_READ_ARRAY		0x00F0
+#define CMD_UNLOCK1		0x00AA
+#define CMD_UNLOCK2		0x0055
+#define CMD_ERASE_SETUP		0x0080
+#define CMD_ERASE_CONFIRM	0x0030
+#define CMD_PROGRAM		0x00A0
+#define CMD_UNLOCK_BYPASS	0x0020
+
+#define MEM_FLASH_ADDR1		(*(volatile u16 *)(CFG_FLASH_BASE + (0x00000555<<1)))
+#define MEM_FLASH_ADDR2		(*(volatile u16 *)(CFG_FLASH_BASE + (0x000002AA<<1)))
+
+#define BIT_ERASE_DONE		0x0080
+#define BIT_RDY_MASK		0x0080
+#define BIT_PROGRAM_ERROR	0x0020
+#define BIT_TIMEOUT		0x80000000	/* our flag */
+
+#define READY 1
+#define ERR   2
+#define TMO   4
+
+
+int flash_erase (flash_info_t * info, int s_first, int s_last)
+{
+	ulong result;
+	int iflag, cflag, prot, sect;
+	int rc = ERR_OK;
+	int chip1;
+
+	/* first look for protection bits */
+
+	if (info->flash_id == FLASH_UNKNOWN)
+		return ERR_UNKNOWN_FLASH_TYPE;
+
+	if ((s_first < 0) || (s_first > s_last)) {
+		return ERR_INVAL;
+	}
+
+	if ((info->flash_id & FLASH_VENDMASK) !=
+	    (AMD_MANUFACT & FLASH_VENDMASK)) {
+		return ERR_UNKNOWN_FLASH_VENDOR;
+	}
+
+	prot = 0;
+	for (sect = s_first; sect <= s_last; ++sect) {
+		if (info->protect[sect]) {
+			prot++;
+		}
+	}
+	if (prot)
+		return ERR_PROTECTED;
+
+	/*
+	 * Disable interrupts which might cause a timeout
+	 * here. Remember that our exception vectors are
+	 * at address 0 in the flash, and we don't want a
+	 * (ticker) exception to happen while the flash
+	 * chip is in programming mode.
+	 */
+
+	cflag = icache_status ();
+	icache_disable ();
+	iflag = disable_interrupts ();
+
+	printf ("\n");
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect <= s_last && !ctrlc (); sect++) {
+		printf ("Erasing sector %2d ... ", sect);
+
+		/* arm simple, non interrupt dependent timer */
+		set_timer (0);
+
+		if (info->protect[sect] == 0) {	/* not protected */
+			volatile u16 *addr =
+				(volatile u16 *) (info->start[sect]);
+
+			MEM_FLASH_ADDR1 = CMD_UNLOCK1;
+			MEM_FLASH_ADDR2 = CMD_UNLOCK2;
+			MEM_FLASH_ADDR1 = CMD_ERASE_SETUP;
+
+			MEM_FLASH_ADDR1 = CMD_UNLOCK1;
+			MEM_FLASH_ADDR2 = CMD_UNLOCK2;
+			*addr = CMD_ERASE_CONFIRM;
+
+			/* wait until flash is ready */
+			chip1 = 0;
+
+			do {
+				result = *addr;
+
+				/* check timeout */
+				if (get_timer (0) > CFG_FLASH_ERASE_TOUT) {
+					MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
+					chip1 = TMO;
+					break;
+				}
+
+				if (!chip1
+				    && (result & 0xFFFF) & BIT_ERASE_DONE)
+					chip1 = READY;
+
+			} while (!chip1);
+
+			MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
+
+			if (chip1 == ERR) {
+				rc = ERR_PROG_ERROR;
+				goto outahere;
+			}
+			if (chip1 == TMO) {
+				rc = ERR_TIMOUT;
+				goto outahere;
+			}
+
+			printf ("ok.\n");
+		} else {	/* it was protected */
+
+			printf ("protected!\n");
+		}
+	}
+
+	if (ctrlc ())
+		printf ("User Interrupt!\n");
+
+      outahere:
+	/* allow flash to settle - wait 10 ms */
+	udelay (10000);
+
+	if (iflag)
+		enable_interrupts ();
+
+	if (cflag)
+		icache_enable ();
+
+	return rc;
+}
+
+
+volatile static int write_word (flash_info_t * info, ulong dest, ulong data)
+{
+	volatile u16 *addr = (volatile u16 *) dest;
+	ulong result;
+	int rc = ERR_OK;
+	int cflag, iflag;
+	int chip1;
+
+	/*
+	 * Check if Flash is (sufficiently) erased
+	 */
+	result = *addr;
+	if ((result & data) != data)
+		return ERR_NOT_ERASED;
+
+
+	/*
+	 * Disable interrupts which might cause a timeout
+	 * here. Remember that our exception vectors are
+	 * at address 0 in the flash, and we don't want a
+	 * (ticker) exception to happen while the flash
+	 * chip is in programming mode.
+	 */
+
+	cflag = icache_status ();
+	icache_disable ();
+	iflag = disable_interrupts ();
+
+	MEM_FLASH_ADDR1 = CMD_UNLOCK1;
+	MEM_FLASH_ADDR2 = CMD_UNLOCK2;
+	MEM_FLASH_ADDR1 = CMD_PROGRAM;
+	*addr = data;
+
+	/* arm simple, non interrupt dependent timer */
+	set_timer (0);
+
+	/* wait until flash is ready */
+	chip1 = 0;
+	do {
+		result = *addr;
+
+		/* check timeout */
+		if (get_timer (0) > CFG_FLASH_ERASE_TOUT) {
+			chip1 = ERR | TMO;
+			break;
+		}
+		if (!chip1 && ((result & 0x80) == (data & 0x80)))
+			chip1 = READY;
+
+	} while (!chip1);
+
+	*addr = CMD_READ_ARRAY;
+
+	if (chip1 == ERR || *addr != data)
+		rc = ERR_PROG_ERROR;
+
+	if (iflag)
+		enable_interrupts ();
+
+	if (cflag)
+		icache_enable ();
+
+	return rc;
+}
+
+
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
+{
+	ulong wp, data;
+	int rc;
+
+	if (addr & 1) {
+		printf ("unaligned destination not supported\n");
+		return ERR_ALIGN;
+	}
+
+#if 0
+	if (cnt & 1) {
+		printf ("odd transfer sizes not supported\n");
+		return ERR_ALIGN;
+	}
+#endif
+
+	wp = addr;
+
+	if (addr & 1) {
+		data = (*((volatile u8 *) addr) << 8) | *((volatile u8 *)
+							  src);
+		if ((rc = write_word (info, wp - 1, data)) != 0) {
+			return (rc);
+		}
+		src += 1;
+		wp += 1;
+		cnt -= 1;
+	}
+
+	while (cnt >= 2) {
+		data = *((volatile u16 *) src);
+		if ((rc = write_word (info, wp, data)) != 0) {
+			return (rc);
+		}
+		src += 2;
+		wp += 2;
+		cnt -= 2;
+	}
+
+	if (cnt == 1) {
+		data = (*((volatile u8 *) src) << 8) |
+			*((volatile u8 *) (wp + 1));
+		if ((rc = write_word (info, wp, data)) != 0) {
+			return (rc);
+		}
+		src += 1;
+		wp += 1;
+		cnt -= 1;
+	}
+
+	return ERR_OK;
+}

+ 35 - 0
board/m5282evb/m5282evb.c

@@ -0,0 +1,35 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+int checkboard (void)
+{
+	puts ("MOTOROLA M5272EVB Evaluation Board\n");
+	return 0;
+}
+
+long int initdram (int board_type)
+{
+	return 0x1000000;
+}

+ 135 - 0
board/m5282evb/u-boot.lds

@@ -0,0 +1,135 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_ARCH(m68k)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
+/* Do we need any of these for elf?
+   __DYNAMIC = 0;    */
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = + SIZEOF_HEADERS;
+  .interp : { *(.interp) }
+  .hash          : { *(.hash)		}
+  .dynsym        : { *(.dynsym)		}
+  .dynstr        : { *(.dynstr)		}
+  .rel.text      : { *(.rel.text)		}
+  .rela.text     : { *(.rela.text) 	}
+  .rel.data      : { *(.rel.data)		}
+  .rela.data     : { *(.rela.data) 	}
+  .rel.rodata    : { *(.rel.rodata) 	}
+  .rela.rodata   : { *(.rela.rodata) 	}
+  .rel.got       : { *(.rel.got)		}
+  .rela.got      : { *(.rela.got)		}
+  .rel.ctors     : { *(.rel.ctors)	}
+  .rela.ctors    : { *(.rela.ctors)	}
+  .rel.dtors     : { *(.rel.dtors)	}
+  .rela.dtors    : { *(.rela.dtors)	}
+  .rel.bss       : { *(.rel.bss)		}
+  .rela.bss      : { *(.rela.bss)		}
+  .rel.plt       : { *(.rel.plt)		}
+  .rela.plt      : { *(.rela.plt)		}
+  .init          : { *(.init)	}
+  .plt : { *(.plt) }
+  .text      :
+  {
+    /* WARNING - the following is hand-optimized to fit within	*/
+    /* the sector layout of our flash chips!	XXX FIXME XXX	*/
+
+    cpu/coldfire/start.o	(.text)
+    common/dlmalloc.o	(.text)
+    lib_generic/string.o	(.text)
+    lib_generic/vsprintf.o	(.text)
+    lib_generic/crc32.o	(.text)
+    lib_generic/zlib.o	(.text)
+
+/*    . = env_offset; */
+    common/environment.o(.text)
+
+    *(.text)
+    *(.fixup)
+    *(.got1)
+  }
+  _etext = .;
+  PROVIDE (etext = .);
+  .rodata    :
+  {
+    *(.rodata)
+    *(.rodata1)
+  }
+  .fini      : { *(.fini)    } =0
+  .ctors     : { *(.ctors)   }
+  .dtors     : { *(.dtors)   }
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x00FF) & 0xFFFFFF00;
+  _erotext = .;
+  PROVIDE (erotext = .);
+  .reloc   :
+  {
+    *(.got)
+    _GOT2_TABLE_ = .;
+    *(.got2)
+    _FIXUP_TABLE_ = .;
+    *(.fixup)
+  }
+  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+  __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+  .data    :
+  {
+    *(.data)
+    *(.data1)
+    *(.sdata)
+    *(.sdata2)
+    *(.dynamic)
+    CONSTRUCTORS
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  . = ALIGN(256);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(256);
+  __init_end = .;
+
+  __bss_start = .;
+  .bss       :
+  {
+   _sbss = .;
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+   . = ALIGN(4);
+   _ebss = .;
+  }
+  _end = . ;
+  PROVIDE (end = .);
+}

+ 130 - 0
board/m5282evb/u-boot.lds.debug

@@ -0,0 +1,130 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_ARCH(powerpc)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
+/* Do we need any of these for elf?
+   __DYNAMIC = 0;    */
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = + SIZEOF_HEADERS;
+  .interp : { *(.interp) }
+  .hash          : { *(.hash)		}
+  .dynsym        : { *(.dynsym)		}
+  .dynstr        : { *(.dynstr)		}
+  .rel.text      : { *(.rel.text)		}
+  .rela.text     : { *(.rela.text) 	}
+  .rel.data      : { *(.rel.data)		}
+  .rela.data     : { *(.rela.data) 	}
+  .rel.rodata    : { *(.rel.rodata) 	}
+  .rela.rodata   : { *(.rela.rodata) 	}
+  .rel.got       : { *(.rel.got)		}
+  .rela.got      : { *(.rela.got)		}
+  .rel.ctors     : { *(.rel.ctors)	}
+  .rela.ctors    : { *(.rela.ctors)	}
+  .rel.dtors     : { *(.rel.dtors)	}
+  .rela.dtors    : { *(.rela.dtors)	}
+  .rel.bss       : { *(.rel.bss)		}
+  .rela.bss      : { *(.rela.bss)		}
+  .rel.plt       : { *(.rel.plt)		}
+  .rela.plt      : { *(.rela.plt)		}
+  .init          : { *(.init)	}
+  .plt : { *(.plt) }
+  .text      :
+  {
+    /* WARNING - the following is hand-optimized to fit within	*/
+    /* the sector layout of our flash chips!	XXX FIXME XXX	*/
+
+    cpu/mpc8xx/start.o	(.text)
+    common/dlmalloc.o	(.text)
+    ppc/vsprintf.o	(.text)
+    ppc/crc32.o		(.text)
+
+    . = env_offset;
+    common/environment.o(.text)
+
+    *(.text)
+    *(.fixup)
+    *(.got1)
+  }
+  _etext = .;
+  PROVIDE (etext = .);
+  .rodata    :
+  {
+    *(.rodata)
+    *(.rodata1)
+  }
+  .fini      : { *(.fini)    } =0
+  .ctors     : { *(.ctors)   }
+  .dtors     : { *(.dtors)   }
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x0FFF) & 0xFFFFF000;
+  _erotext = .;
+  PROVIDE (erotext = .);
+  .reloc   :
+  {
+    *(.got)
+    _GOT2_TABLE_ = .;
+    *(.got2)
+    _FIXUP_TABLE_ = .;
+    *(.fixup)
+  }
+  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+  __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+  .data    :
+  {
+    *(.data)
+    *(.data1)
+    *(.sdata)
+    *(.sdata2)
+    *(.dynamic)
+    CONSTRUCTORS
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  . = ALIGN(4096);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(4096);
+  __init_end = .;
+
+  __bss_start = .;
+  .bss       :
+  {
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+  _end = . ;
+  PROVIDE (end = .);
+}

+ 2 - 0
common/cmd_bootm.c

@@ -240,6 +240,8 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	if (hdr->ih_arch != IH_CPU_MIPS)
 #elif defined(__nios__)
 	if (hdr->ih_arch != IH_CPU_NIOS)
+#elif defined(__M68K__)
+	if (hdr->ih_arch != IH_CPU_M68K)
 #else
 # error Unknown CPU type
 #endif

+ 45 - 0
cpu/coldfire/Makefile

@@ -0,0 +1,45 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+# CFLAGS += -DET_DEBUG
+
+LIB	= lib$(CPU).a
+
+START	= 
+OBJS	= kgdb.o serial.o interrupts.o cpu.o speed.o cpu_init.o fec.o
+
+all:	.depend $(START) $(LIB)
+
+$(LIB):	$(OBJS)
+	$(AR) crv $@ $(OBJS) kgdb.o
+
+#########################################################################
+
+.depend:	Makefile $(START:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(START:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################

+ 26 - 0
cpu/coldfire/config.mk

@@ -0,0 +1,26 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+PLATFORM_RELFLAGS +=
+
+PLATFORM_CPPFLAGS += -m5200

+ 87 - 0
cpu/coldfire/cpu.c

@@ -0,0 +1,87 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <command.h>
+#ifdef CONFIG_M5272
+#include <asm/m5272.h>
+#endif
+#ifdef CONFIG_M5282
+#include <asm/m5282.h>
+#endif
+#include <asm/cache.h>
+
+int do_reset (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+{
+	return 0;
+}
+
+unsigned long get_tbclk (void)
+{
+	return CFG_HZ;
+}
+
+int checkcpu (void)
+{
+#ifdef CONFIG_M5272
+	puts ("MOTOROLA Coldfire MCF5272\n");
+#endif
+#ifdef CONFIG_M5282
+	puts ("MOTOROLA Coldfire MCF5282\n");
+#endif
+	return 0;
+}
+
+void do_exception (void)
+{
+	printf ("\n\n*** Unexpected exception ... Reset Board! ***\n");
+	for (;;);
+}
+
+void do_buserror (void)
+{
+	printf ("\n\n*** Bus error ... Reset Board! ***\n");
+	for (;;);
+}
+
+void do_addresserror (void)
+{
+	printf ("\n\n*** Address error ... Reset Board! ***\n");
+	for (;;);
+}
+
+void trap_init (ulong value)
+{
+	extern void buserror_handler (void);
+	extern void addresserror_handler (void);
+	extern void exception_handler (void);
+	unsigned long *vec = 0;
+	int i;
+
+	vec[2] = buserror_handler;
+	vec[3] = addresserror_handler;
+	for (i = 4; i < 256; i++) {
+		vec[i] = exception_handler;
+	}
+}

+ 300 - 0
cpu/coldfire/fec.c

@@ -0,0 +1,300 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <commproc.h>
+#include <net.h>
+#include <command.h>
+
+
+
+/**************************************************************
+ *
+ * FEC Ethernet Initialization Routine
+ *
+ *************************************************************/
+
+#define FEC_ECNTRL_ETHER_EN	0x00000002
+#define FEC_ECNTRL_RESET	0x00000001
+
+#define FEC_RCNTRL_BC_REJ	0x00000010
+#define FEC_RCNTRL_PROM		0x00000008
+#define FEC_RCNTRL_MII_MODE	0x00000004
+#define FEC_RCNTRL_DRT		0x00000002
+#define FEC_RCNTRL_LOOP		0x00000001
+
+#define FEC_TCNTRL_FDEN		0x00000004
+#define FEC_TCNTRL_HBC		0x00000002
+#define FEC_TCNTRL_GTS		0x00000001
+
+#define	FEC_RESET_DELAY		50000
+
+
+
+/* Ethernet Transmit and Receive Buffers */
+#define DBUF_LENGTH  1520
+
+#define TX_BUF_CNT 2
+
+#define TOUT_LOOP 100
+
+#define PKT_MAXBUF_SIZE         1518
+#define PKT_MINBUF_SIZE         64
+#define PKT_MAXBLR_SIZE         1520
+
+
+
+#ifdef CONFIG_M5272
+#define FEC_ADDR 0x10000840
+#endif
+#ifdef CONFIG_M5282
+#define FEC_ADDR 0x40001000
+#endif
+
+#undef	ET_DEBUG
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(FEC_ENET)
+
+
+
+static char txbuf[DBUF_LENGTH];
+
+static uint rxIdx;	/* index of the current RX buffer */
+static uint txIdx;	/* index of the current TX buffer */
+
+/*
+  * FEC Ethernet Tx and Rx buffer descriptors allocated at the
+  *  immr->udata_bd address on Dual-Port RAM
+  * Provide for Double Buffering
+  */
+
+typedef volatile struct CommonBufferDescriptor {
+    cbd_t rxbd[PKTBUFSRX];		/* Rx BD */
+    cbd_t txbd[TX_BUF_CNT];		/* Tx BD */
+} RTXBD;
+
+static RTXBD *rtx = 0x380000;
+
+
+int eth_send(volatile void *packet, int length)
+{
+	int j, rc;
+	volatile fec_t *fecp = FEC_ADDR;
+
+	/* section 16.9.23.3
+	 * Wait for ready
+	 */
+	j = 0;
+	while ((rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY) && (j<TOUT_LOOP)) {
+		udelay(1);
+		j++;
+	}
+	if (j>=TOUT_LOOP) {
+		printf("TX not ready\n");
+	}
+
+	rtx->txbd[txIdx].cbd_bufaddr = (uint)packet;
+	rtx->txbd[txIdx].cbd_datlen  = length;
+	rtx->txbd[txIdx].cbd_sc |= BD_ENET_TX_READY | BD_ENET_TX_LAST;
+
+	/* Activate transmit Buffer Descriptor polling */
+	fecp->fec_x_des_active = 0x01000000;	/* Descriptor polling active	*/
+
+	j = 0;
+	while ((rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY) && (j<TOUT_LOOP)) {
+		udelay(1);
+		j++;
+	}
+	if (j>=TOUT_LOOP) {
+		printf("TX timeout\n");
+	}
+#ifdef ET_DEBUG
+	printf("%s[%d] %s: cycles: %d    status: %x  retry cnt: %d\n",
+	__FILE__,__LINE__,__FUNCTION__,j,rtx->txbd[txIdx].cbd_sc,
+	(rtx->txbd[txIdx].cbd_sc & 0x003C)>>2);
+#endif
+	/* return only status bits */;
+	rc = (rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_STATS);
+
+	txIdx = (txIdx + 1) % TX_BUF_CNT;
+
+	return rc;
+}
+
+int eth_rx(void)
+{
+	int length;
+	volatile fec_t *fecp = FEC_ADDR;
+
+   for (;;)
+   {     
+	/* section 16.9.23.2 */
+	if (rtx->rxbd[rxIdx].cbd_sc & BD_ENET_RX_EMPTY) {
+		length = -1;
+		break;     /* nothing received - leave for() loop */
+	}
+
+	length = rtx->rxbd[rxIdx].cbd_datlen;
+
+	if (rtx->rxbd[rxIdx].cbd_sc & 0x003f) {
+#ifdef ET_DEBUG
+		printf("%s[%d] err: %x\n",
+		__FUNCTION__,__LINE__,rtx->rxbd[rxIdx].cbd_sc);
+#endif
+	} else {
+		/* Pass the packet up to the protocol layers. */
+		NetReceive(NetRxPackets[rxIdx], length - 4);
+	}
+
+	/* Give the buffer back to the FEC. */
+	rtx->rxbd[rxIdx].cbd_datlen = 0;
+
+	/* wrap around buffer index when necessary */
+	if ((rxIdx + 1) >= PKTBUFSRX) {
+           rtx->rxbd[PKTBUFSRX - 1].cbd_sc = (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY);
+	   rxIdx = 0;
+	} else {
+           rtx->rxbd[rxIdx].cbd_sc = BD_ENET_RX_EMPTY;
+	   rxIdx++;
+	}
+	
+	/* Try to fill Buffer Descriptors */
+	fecp->fec_r_des_active = 0x01000000;	/* Descriptor polling active	*/
+   }
+
+   return length;
+}
+
+
+int eth_init (bd_t * bd)
+{
+
+	int i;
+	volatile fec_t *fecp = FEC_ADDR;
+	
+	/* Whack a reset.
+	 * A delay is required between a reset of the FEC block and
+	 * initialization of other FEC registers because the reset takes
+	 * some time to complete. If you don't delay, subsequent writes
+	 * to FEC registers might get killed by the reset routine which is
+	 * still in progress.
+	 */
+
+	fecp->fec_ecntrl = FEC_ECNTRL_RESET;
+	for (i = 0;
+	     (fecp->fec_ecntrl & FEC_ECNTRL_RESET) && (i < FEC_RESET_DELAY);
+	     ++i) {
+		udelay (1);
+	}
+	if (i == FEC_RESET_DELAY) {
+		printf ("FEC_RESET_DELAY timeout\n");
+		return 0;
+	}
+
+	/* We use strictly polling mode only
+	 */
+	fecp->fec_imask = 0;
+	
+	/* Clear any pending interrupt */
+	fecp->fec_ievent = 0xffffffff;
+	
+	/* Set station address	 */
+#define ea bd->bi_enetaddr
+	fecp->fec_addr_low   =	(ea[0] << 24) | (ea[1] << 16) |
+				(ea[2] <<  8) | (ea[3]        ) ;
+	fecp->fec_addr_high  =	(ea[4] << 24) | (ea[5] << 16  ) ;
+#undef ea
+
+	/* Clear multicast address hash table
+	 */
+	fecp->fec_hash_table_high = 0;
+	fecp->fec_hash_table_low  = 0;
+
+	/* Set maximum receive buffer size.
+	 */
+	fecp->fec_r_buff_size = PKT_MAXBLR_SIZE;
+
+	/*
+	 * Setup Buffers and Buffer Desriptors
+	 */
+	rxIdx = 0;
+	txIdx = 0;
+
+	/*
+	 * Setup Receiver Buffer Descriptors (13.14.24.18)
+	 * Settings:
+	 *     Empty, Wrap
+	 */
+	for (i = 0; i < PKTBUFSRX; i++) {
+		rtx->rxbd[i].cbd_sc      = BD_ENET_RX_EMPTY;
+		rtx->rxbd[i].cbd_datlen  = 0;	/* Reset */
+		rtx->rxbd[i].cbd_bufaddr = (uint) NetRxPackets[i];
+	}
+	rtx->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
+
+	/*
+	 * Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19)
+	 * Settings:
+	 *    Last, Tx CRC
+	 */
+	for (i = 0; i < TX_BUF_CNT; i++) {
+	        rtx->txbd[i].cbd_sc      = BD_ENET_TX_LAST | BD_ENET_TX_TC;
+		rtx->txbd[i].cbd_datlen  = 0;	/* Reset */
+		rtx->txbd[i].cbd_bufaddr = (uint) (&txbuf[0]);
+	}
+	rtx->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP;
+
+	/* Set receive and transmit descriptor base
+	 */
+	fecp->fec_r_des_start = (unsigned int) (&rtx->rxbd[0]);
+	fecp->fec_x_des_start = (unsigned int) (&rtx->txbd[0]);
+
+	/* Enable MII mode
+	 */
+
+	/* Half duplex mode */
+	fecp->fec_r_cntrl = (PKT_MAXBUF_SIZE<<16) | FEC_RCNTRL_MII_MODE;
+	fecp->fec_r_cntrl = (PKT_MAXBUF_SIZE<<16) | FEC_RCNTRL_MII_MODE;
+	fecp->fec_x_cntrl = 0;
+
+	fecp->fec_mii_speed = 0;
+
+	/* Now enable the transmit and receive processing
+	 */
+	fecp->fec_ecntrl = FEC_ECNTRL_ETHER_EN;
+
+	/* And last, try to fill Rx Buffer Descriptors */
+	fecp->fec_r_des_active = 0x01000000;	/* Descriptor polling active	*/
+
+	return 1;
+}
+
+
+
+void eth_halt(void)
+{
+	volatile fec_t *fecp = FEC_ADDR;
+	fecp->fec_ecntrl = 0;
+}
+
+#endif

+ 28 - 0
cpu/coldfire/fec.h

@@ -0,0 +1,28 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef	_FEC_H_
+#define	_FEC_H_
+
+
+#endif	/* _FEC_H_ */

+ 127 - 0
cpu/coldfire/interrupts.c

@@ -0,0 +1,127 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#ifdef CONFIG_M5272
+#include <asm/m5272.h>
+#endif
+#ifdef CONFIG_M5282
+#include <asm/m5282.h>
+#endif
+#include <asm/mcftimer.h>
+#include <asm/processor.h>
+#include <commproc.h>
+
+static ulong timestamp;
+static unsigned short lastinc;
+
+void coldfire_timer_init (void)
+{
+	volatile unsigned short *timerp;
+
+	timerp = (volatile unsigned short *) (MCF_MBAR + MCFTIMER_BASE4);
+	timestamp = 0;
+
+#ifdef CONFIG_M5272
+	/* Set up TIMER 4 as poll clock */
+	timerp[MCFTIMER_TMR] = MCFTIMER_TMR_DISABLE;
+	timerp[MCFTIMER_TRR] = lastinc = 0;
+	timerp[MCFTIMER_TMR] = (65 << 8) | MCFTIMER_TMR_CLK1 |
+		MCFTIMER_TMR_FREERUN | MCFTIMER_TMR_ENABLE;
+#endif
+
+#ifdef CONFIG_M5282
+	/* Set up TIMER 4 as poll clock */
+	timerp[MCFTIMER_PCSR] = MCFTIMER_PCSR_OVW;
+	timerp[MCFTIMER_PMR] = lastinc = 0;
+	timerp[MCFTIMER_PCSR] =
+		(5 << 8) | MCFTIMER_PCSR_EN | MCFTIMER_PCSR_OVW;
+#endif
+}
+
+
+void irq_install_handler (int vec, interrupt_handler_t * handler, void *arg)
+{
+}
+void irq_free_handler (int vec)
+{
+}
+
+int interrupt_init (void)
+{
+	coldfire_timer_init ();
+	return 0;
+}
+
+void enable_interrupts ()
+{
+}
+int disable_interrupts ()
+{
+	return 0;
+}
+
+void set_timer (ulong t)
+{
+	volatile unsigned short *timerp;
+
+	timerp = (volatile unsigned short *) (MCF_MBAR + MCFTIMER_BASE4);
+	timestamp = 0;
+
+#ifdef CONFIG_M5272
+	timerp[MCFTIMER_TRR] = lastinc = 0;
+#endif
+
+#ifdef CONFIG_M5282
+	timerp[MCFTIMER_PMR] = lastinc = 0;
+#endif
+}
+
+ulong get_timer (ulong base)
+{
+	unsigned short now, diff;
+	volatile unsigned short *timerp;
+
+	timerp = (volatile unsigned short *) (MCF_MBAR + MCFTIMER_BASE4);
+
+#ifdef CONFIG_M5272
+	now = timerp[MCFTIMER_TCN];
+	diff = (now - lastinc);
+#endif
+
+#ifdef CONFIG_M5282
+	now = timerp[MCFTIMER_PCNTR];
+	diff = -(now - lastinc);
+#endif
+
+	timestamp += diff;
+	lastinc = now;
+	return timestamp - base;
+}
+
+void wait_ticks (unsigned long ticks)
+{
+	set_timer (0);
+	while (get_timer (0) < ticks);
+}

+ 168 - 0
cpu/coldfire/serial.c

@@ -0,0 +1,168 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <commproc.h>
+#include <command.h>
+
+#ifdef CONFIG_M5272
+#include <asm/m5272.h>
+#endif
+#ifdef CONFIG_M5282
+#include <asm/m5282.h>
+#endif
+#include <asm/mcfuart.h>
+
+#define DoubleClock(a) ((double)(MCF_CLK) / 32.0 / (double)(a))
+
+void rs_serial_setbaudrate (int port, int baudrate)
+{
+#ifdef CONFIG_M5272
+	volatile unsigned char *uartp;
+	double clock, fraction;
+
+	if (port == 0)
+		uartp = (volatile unsigned char *) (MCF_MBAR + MCFUART_BASE1);
+	else
+		uartp = (volatile unsigned char *) (MCF_MBAR + MCFUART_BASE2);
+
+	clock = DoubleClock (baudrate);	/* Set baud above */
+
+	fraction = ((clock - (int) clock) * 16.0) + 0.5;
+
+	uartp[MCFUART_UBG1] = (((int) clock >> 8) & 0xff);	/* set msb baud */
+	uartp[MCFUART_UBG2] = ((int) clock & 0xff);	/* set lsb baud */
+	uartp[MCFUART_UFPD] = ((int) fraction & 0xf);	/* set baud fraction adjust */
+#endif
+}
+
+void rs_serial_init (int port, int baudrate)
+{
+	volatile unsigned char *uartp;
+	double clock, fraction;
+
+	/*
+	 *      Reset UART, get it into known state...
+	 */
+	if (port == 0)
+		uartp = (volatile unsigned char *) (MCF_MBAR + MCFUART_BASE1);
+	else
+		uartp = (volatile unsigned char *) (MCF_MBAR + MCFUART_BASE2);
+
+	uartp[MCFUART_UCR] = MCFUART_UCR_CMDRESETRX;	/* reset RX */
+	uartp[MCFUART_UCR] = MCFUART_UCR_CMDRESETTX;	/* reset TX */
+	uartp[MCFUART_UCR] = MCFUART_UCR_CMDRESETMRPTR;	/* reset MR pointer */
+	uartp[MCFUART_UCR] = MCFUART_UCR_CMDRESETERR;	/* reset Error pointer */
+
+	/*
+	 * Set port for CONSOLE_BAUD_RATE, 8 data bits, 1 stop bit, no parity.
+	 */
+	uartp[MCFUART_UMR] = MCFUART_MR1_PARITYNONE | MCFUART_MR1_CS8;
+	uartp[MCFUART_UMR] = MCFUART_MR2_STOP1;
+
+	rs_serial_setbaudrate (port, baudrate);
+
+	uartp[MCFUART_UCSR] =
+		MCFUART_UCSR_RXCLKTIMER | MCFUART_UCSR_TXCLKTIMER;
+	uartp[MCFUART_UCR] = MCFUART_UCR_RXENABLE | MCFUART_UCR_TXENABLE;
+
+	return;
+}
+
+
+/****************************************************************************/
+
+/*
+ *	Output a single character, using UART polled mode.
+ *	This is used for console output.
+ */
+
+void rs_put_char (char ch)
+{
+	volatile unsigned char *uartp;
+	int i;
+
+	uartp = (volatile unsigned char *) (MCF_MBAR + MCFUART_BASE1);
+
+	for (i = 0; (i < 0x10000); i++) {
+		if (uartp[MCFUART_USR] & MCFUART_USR_TXREADY)
+			break;
+	}
+	uartp[MCFUART_UTB] = ch;
+	return;
+}
+
+int rs_is_char (void)
+{
+	volatile unsigned char *uartp;
+
+	uartp = (volatile unsigned char *) (MCF_MBAR + MCFUART_BASE1);
+	return ((uartp[MCFUART_USR] & MCFUART_USR_RXREADY) ? 1 : 0);
+}
+
+int rs_get_char (void)
+{
+	volatile unsigned char *uartp;
+
+	uartp = (volatile unsigned char *) (MCF_MBAR + MCFUART_BASE1);
+	return (uartp[MCFUART_URB]);
+}
+
+void serial_setbrg (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	rs_serial_setbaudrate (0, gd->bd->bi_baudrate);
+}
+
+int serial_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	rs_serial_init (0, gd->bd->bi_baudrate);
+	return 0;
+}
+
+
+void serial_putc (const char c)
+{
+	if (c == '\n')
+		serial_putc ('\r');
+	rs_put_char (c);
+}
+
+void serial_puts (const char *s)
+{
+	while (*s) {
+		serial_putc (*s++);
+	}
+}
+
+int serial_getc (void)
+{
+	while (!rs_is_char ());
+	return rs_get_char ();
+}
+
+int serial_tstc ()
+{
+	return rs_is_char ();
+}

+ 35 - 0
cpu/coldfire/speed.c

@@ -0,0 +1,35 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+
+ulong get_gclk_freq (void)
+{
+	return 0;
+}
+
+ulong get_bus_freq (ulong gclk_freq)
+{
+	return 0;
+}

+ 165 - 0
cpu/coldfire/start.S

@@ -0,0 +1,165 @@
+/*
+ *  Copyright (C) 1998	Dan Malek <dmalek@jlc.net>
+ *  Copyright (C) 1999	Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se>
+ *  Copyright (C) 2000-2003 Wolfgang Denk <wd@denx.de>
+ *  Coldfire contribution by Bernhard Kuhn <bkuhn@metrowerks.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 <config.h>
+#include "version.h"
+
+#ifndef  CONFIG_IDENT_STRING
+#define  CONFIG_IDENT_STRING ""
+#endif
+
+#define MCF_MBAR 0x10000000
+#define MEM_BUILTIN_ADDR 0x20000000
+#define MEM_BUILTIN_SIZE 0x1000
+#define DRAM_ADDR 0x0
+#define DRAM_SIZE 0x400000
+
+	.text
+
+        .globl  _start
+_start:
+	nop
+	nop
+	move.w #0x2700,%sr
+
+        move.l  #0, %d0
+        movec   %d0, %VBR
+
+#ifdef CONFIG_M5272
+	move.l  #(MCF_MBAR+1), %d0
+        move.c  %d0, %MBAR
+
+	move.l  #(MEM_BUILTIN_ADDR+1), %d0
+        movec   %d0, %RAMBAR0
+
+	move.l  #0x01000000, %d0                /* Invalidate cache cmd */
+        movec   %d0, %CACR                      /* Invalidate cache */
+        move.l  #0x0000c000, %d0                /* Setup cache mask */
+        movec   %d0, %ACR0                      /* Enable cache */
+        move.l  #0xff00c000, %d0                /* Setup cache mask */
+        movec   %d0, %ACR1                      /* Enable cache */
+        move.l  #0x80000100, %d0                /* Setup cache mask */
+        movec   %d0, %CACR                      /* Enable cache */
+#endif
+
+	move.l	#_sbss,%a0
+	move.l	#_ebss,%d0
+1:
+	clr.l	(%a0)+
+	cmp.l	%a0,%d0
+	bne.s	1b
+
+/*	move.l  #MEM_BUILTIN_ADDR+MEM_BUILTIN_SIZE, %sp */
+	move.l  #DRAM_ADDR+DRAM_SIZE, %sp
+	clr.l %sp@-
+
+	jsr board_init_f
+
+	.globl	exception_handler
+exception_handler:
+	move.w #0x2700,%sr
+	lea %sp@(-60),%sp
+	movem.l %d0-%d7/%a0-%a6,%sp@
+	jsr do_exception
+	movem.l %sp@,%d0-%d7/%a0-%a6
+	lea %sp@(60),%sp
+	rte
+
+	.globl	buserror_handler
+buserror_handler:
+	move.w #0x2700,%sr
+	lea %sp@(-60),%sp
+	movem.l %d0-%d7/%a0-%a6,%sp@
+	jsr do_buserror
+	movem.l %sp@,%d0-%d7/%a0-%a6
+	lea %sp@(60),%sp
+	rte
+
+	.globl	addresserror_handler
+addresserror_handler:
+	move.w #0x2700,%sr
+	lea %sp@(-60),%sp
+	movem.l %d0-%d7/%a0-%a6,%sp@
+	jsr do_buserror
+	movem.l %sp@,%d0-%d7/%a0-%a6
+	lea %sp@(60),%sp
+	rte
+
+	.globl  get_endaddr
+get_endaddr:
+	movel #_end,%d0
+	rts
+
+#ifdef CONFIG_M5272
+	.globl  icache_enable
+icache_enable:
+	move.l  #0x01000000, %d0                /* Invalidate cache cmd */
+        movec   %d0, %CACR                      /* Invalidate cache */
+        move.l  #0x0000c000, %d0                /* Setup cache mask */
+        movec   %d0, %ACR0                      /* Enable cache */
+        move.l  #0xff00c000, %d0                /* Setup cache mask */
+        movec   %d0, %ACR1                      /* Enable cache */
+        move.l  #0x80000100, %d0                /* Setup cache mask */
+        movec   %d0, %CACR                      /* Enable cache */
+	moveq	#1, %d0
+	move.l	%d0, icache_state
+	rts
+
+	.globl  icache_disable
+icache_disable:
+        move.l  #0x00000100, %d0                /* Setup cache mask */
+        movec   %d0, %CACR                      /* Enable cache */
+	clr.l   %d0				/* Setup cache mask */
+        movec   %d0, %ACR0                      /* Enable cache */
+        movec   %d0, %ACR1                      /* Enable cache */
+	moveq	#0, %d0
+	move.l	%d0, icache_state
+	rts
+#endif
+
+#ifdef CONFIG_M5282
+	.globl  icache_enable
+icache_enable:
+	rts
+
+	.globl  icache_disable
+icache_disable:
+	rts
+#endif
+
+	.globl	icache_status
+icache_status:
+	move.l	icache_state, %d0
+	rts
+
+	.data
+icache_state:
+	.long	1
+
+	.globl  version_string
+version_string:
+	.ascii U_BOOT_VERSION
+	.ascii " (", __DATE__, " - ", __TIME__, ")"
+	.ascii CONFIG_IDENT_STRING, "\0"

+ 5 - 0
examples/Makefile

@@ -56,6 +56,11 @@ SREC   += sched.srec
 BIN    += sched.bin
 endif
 
+ifeq ($(ARCH),m68k)
+SREC =
+BIN =
+endif
+
 # The following example is pretty 8xx specific...
 ifeq ($(CPU),mpc8xx)
 SREC   += timer.srec

+ 62 - 0
include/asm-m68k/global_data.h

@@ -0,0 +1,62 @@
+/*
+ * (C) Copyright 2002-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef	__ASM_GBL_DATA_H
+#define __ASM_GBL_DATA_H
+/*
+ * The following data structure is placed in some memory wich is
+ * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
+ * some locked parts of the data cache) to allow for a minimum set of
+ * global variables during system initialization (until we have set
+ * up the memory controller so that we can use RAM).
+ *
+ * Keep it *SMALL* and remember to set CFG_GBL_DATA_SIZE > sizeof(gd_t)
+ */
+
+typedef	struct	global_data {
+	bd_t		*bd;
+	unsigned long	flags;
+	unsigned long	baudrate;
+	unsigned long	cpu_clk;	/* CPU clock in Hz!		*/
+	unsigned long	bus_clk;
+	unsigned long	ram_size;	/* RAM size */
+	unsigned long	reloc_off;	/* Relocation Offset */
+	unsigned long	reset_status;	/* reset status register at boot	*/
+	unsigned long	env_addr;	/* Address  of Environment struct	*/
+	unsigned long	env_valid;	/* Checksum of Environment valid?	*/
+	unsigned long	have_console;	/* serial_init() was called		*/
+#ifdef CONFIG_BOARD_TYPES
+	unsigned long	board_type;
+#endif
+} gd_t;
+
+/*
+ * Global Data Flags
+ */
+#define	GD_FLG_RELOC	0x00001		/* Code was relocated to RAM		*/
+#define	GD_FLG_DEVINIT	0x00002		/* Devices have been initialized	*/
+
+extern gd_t *global_data;
+#define DECLARE_GLOBAL_DATA_PTR     gd_t *gd = global_data
+
+#endif /* __ASM_GBL_DATA_H */

+ 1 - 0
include/asm-m68k/io.h

@@ -0,0 +1 @@
+/* */

+ 109 - 0
include/asm-m68k/posix_types.h

@@ -0,0 +1,109 @@
+#ifndef _M68K_POSIX_TYPES_H
+#define _M68K_POSIX_TYPES_H
+
+/*
+ * This file is generally used by user-level software, so you need to
+ * be a little careful about namespace pollution etc.  Also, we cannot
+ * assume GCC is being used.
+ */
+
+typedef unsigned int	__kernel_dev_t;
+typedef unsigned int	__kernel_ino_t;
+typedef unsigned int	__kernel_mode_t;
+typedef unsigned short	__kernel_nlink_t;
+typedef long		__kernel_off_t;
+typedef int		__kernel_pid_t;
+typedef unsigned int	__kernel_uid_t;
+typedef unsigned int	__kernel_gid_t;
+typedef unsigned int	__kernel_size_t;
+typedef int		__kernel_ssize_t;
+typedef long		__kernel_ptrdiff_t;
+typedef long		__kernel_time_t;
+typedef long		__kernel_suseconds_t;
+typedef long		__kernel_clock_t;
+typedef int		__kernel_daddr_t;
+typedef char *		__kernel_caddr_t;
+typedef short             __kernel_ipc_pid_t;
+typedef unsigned short	__kernel_uid16_t;
+typedef unsigned short	__kernel_gid16_t;
+typedef unsigned int	__kernel_uid32_t;
+typedef unsigned int	__kernel_gid32_t;
+
+typedef unsigned int	__kernel_old_uid_t;
+typedef unsigned int	__kernel_old_gid_t;
+
+#ifdef __GNUC__
+typedef long long	__kernel_loff_t;
+#endif
+
+typedef struct {
+	int	val[2];
+} __kernel_fsid_t;
+
+#ifndef __GNUC__
+
+#define	__FD_SET(d, set)	((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
+#define	__FD_CLR(d, set)	((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
+#define	__FD_ISSET(d, set)	((set)->fds_bits[__FDELT(d)] & __FDMASK(d))
+#define	__FD_ZERO(set)	\
+  ((void) memset ((__ptr_t) (set), 0, sizeof (__kernel_fd_set)))
+
+#else /* __GNUC__ */
+
+#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) \
+    || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 0)
+/* With GNU C, use inline functions instead so args are evaluated only once: */
+
+#undef __FD_SET
+static __inline__ void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
+{
+	unsigned long _tmp = fd / __NFDBITS;
+	unsigned long _rem = fd % __NFDBITS;
+	fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
+}
+
+#undef __FD_CLR
+static __inline__ void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
+{
+	unsigned long _tmp = fd / __NFDBITS;
+	unsigned long _rem = fd % __NFDBITS;
+	fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
+}
+
+#undef __FD_ISSET
+static __inline__ int __FD_ISSET(unsigned long fd, __kernel_fd_set *p)
+{
+	unsigned long _tmp = fd / __NFDBITS;
+	unsigned long _rem = fd % __NFDBITS;
+	return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
+}
+
+/*
+ * This will unroll the loop for the normal constant case (8 ints,
+ * for a 256-bit fd_set)
+ */
+#undef __FD_ZERO
+static __inline__ void __FD_ZERO(__kernel_fd_set *p)
+{
+	unsigned int *tmp = (unsigned int *)p->fds_bits;
+	int i;
+
+	if (__builtin_constant_p(__FDSET_LONGS)) {
+		switch (__FDSET_LONGS) {
+			case 8:
+				tmp[0] = 0; tmp[1] = 0; tmp[2] = 0; tmp[3] = 0;
+				tmp[4] = 0; tmp[5] = 0; tmp[6] = 0; tmp[7] = 0;
+				return;
+		}
+	}
+	i = __FDSET_LONGS;
+	while (i) {
+		i--;
+		*tmp = 0;
+		tmp++;
+	}
+}
+
+#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
+#endif /* __GNUC__ */
+#endif /* _M68K_POSIX_TYPES_H */

+ 108 - 0
include/asm-m68k/ptrace.h

@@ -0,0 +1,108 @@
+#ifndef _M68K_PTRACE_H
+#define _M68K_PTRACE_H
+
+/*
+ * This struct defines the way the registers are stored on the
+ * kernel stack during a system call or other kernel entry.
+ *
+ * this should only contain volatile regs
+ * since we can keep non-volatile in the thread_struct
+ * should set this up when only volatiles are saved
+ * by intr code.
+ *
+ * Since this is going on the stack, *CARE MUST BE TAKEN* to insure
+ * that the overall structure is a multiple of 16 bytes in length.
+ *
+ * Note that the offsets of the fields in this struct correspond with
+ * the PT_* values below.  This simplifies arch/ppc/kernel/ptrace.c.
+ */
+
+#include <linux/config.h>
+
+#ifndef __ASSEMBLY__
+#ifdef CONFIG_M68K64BRIDGE
+#define M68K_REG unsigned long /*long*/
+#else
+#define M68K_REG unsigned long
+#endif
+struct pt_regs {
+	M68K_REG gpr[32];
+	M68K_REG nip;
+	M68K_REG msr;
+	M68K_REG orig_gpr3;	/* Used for restarting system calls */
+	M68K_REG ctr;
+	M68K_REG link;
+	M68K_REG xer;
+	M68K_REG ccr;
+	M68K_REG mq;		/* 601 only (not used at present) */
+				/* Used on APUS to hold IPL value. */
+	M68K_REG trap;		/* Reason for being here */
+	M68K_REG dar;		/* Fault registers */
+	M68K_REG dsisr;
+	M68K_REG result; 	/* Result of a system call */
+};
+#endif
+
+#define STACK_FRAME_OVERHEAD	16	/* size of minimum stack frame */
+
+/* Size of stack frame allocated when calling signal handler. */
+#define __SIGNAL_FRAMESIZE	64
+
+#define instruction_pointer(regs) ((regs)->nip)
+#define user_mode(regs) (((regs)->msr & MSR_PR) != 0)
+
+/*
+ * Offsets used by 'ptrace' system call interface.
+ * These can't be changed without breaking binary compatibility
+ * with MkLinux, etc.
+ */
+#define PT_R0	0
+#define PT_R1	1
+#define PT_R2	2
+#define PT_R3	3
+#define PT_R4	4
+#define PT_R5	5
+#define PT_R6	6
+#define PT_R7	7
+#define PT_R8	8
+#define PT_R9	9
+#define PT_R10	10
+#define PT_R11	11
+#define PT_R12	12
+#define PT_R13	13
+#define PT_R14	14
+#define PT_R15	15
+#define PT_R16	16
+#define PT_R17	17
+#define PT_R18	18
+#define PT_R19	19
+#define PT_R20	20
+#define PT_R21	21
+#define PT_R22	22
+#define PT_R23	23
+#define PT_R24	24
+#define PT_R25	25
+#define PT_R26	26
+#define PT_R27	27
+#define PT_R28	28
+#define PT_R29	29
+#define PT_R30	30
+#define PT_R31	31
+
+#define PT_NIP	32
+#define PT_MSR	33
+#ifdef __KERNEL__
+#define PT_ORIG_R3 34
+#endif
+#define PT_CTR	35
+#define PT_LNK	36
+#define PT_XER	37
+#define PT_CCR	38
+#define PT_MQ	39
+
+#define PT_FPR0	48	/* each FP reg occupies 2 slots in this space */
+#define PT_FPR31 (PT_FPR0 + 2*31)
+#define PT_FPSCR (PT_FPR0 + 2*32 + 1)
+
+#endif
+

+ 31 - 0
include/asm-m68k/string.h

@@ -0,0 +1,31 @@
+#ifndef _M68K_STRING_H_
+#define _M68K_STRING_H_
+
+#if 0
+#define __HAVE_ARCH_STRCPY
+#define __HAVE_ARCH_STRNCPY
+#define __HAVE_ARCH_STRLEN
+#define __HAVE_ARCH_STRCMP
+#define __HAVE_ARCH_STRCAT
+#define __HAVE_ARCH_MEMSET
+#define __HAVE_ARCH_BCOPY
+#define __HAVE_ARCH_MEMCPY
+#define __HAVE_ARCH_MEMMOVE
+#define __HAVE_ARCH_MEMCMP
+#define __HAVE_ARCH_MEMCHR
+#endif
+
+extern int strcasecmp(const char *, const char *);
+extern int strncasecmp(const char *, const char *, int);
+extern char * strcpy(char *,const char *);
+extern char * strncpy(char *,const char *, __kernel_size_t);
+extern __kernel_size_t strlen(const char *);
+extern int strcmp(const char *,const char *);
+extern char * strcat(char *, const char *);
+extern void * memset(void *,int,__kernel_size_t);
+extern void * memcpy(void *,const void *,__kernel_size_t);
+extern void * memmove(void *,const void *,__kernel_size_t);
+extern int memcmp(const void *,const void *,__kernel_size_t);
+extern void * memchr(const void *,int,__kernel_size_t);
+
+#endif

+ 50 - 0
include/asm-m68k/types.h

@@ -0,0 +1,50 @@
+#ifndef _M68K_TYPES_H
+#define _M68K_TYPES_H
+
+#ifndef __ASSEMBLY__
+
+typedef unsigned short umode_t;
+
+typedef __signed__ char __s8;
+typedef unsigned char __u8;
+
+typedef __signed__ short __s16;
+typedef unsigned short __u16;
+
+typedef __signed__ int __s32;
+typedef unsigned int __u32;
+
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
+typedef __signed__ long long __s64;
+typedef unsigned long long __u64;
+#endif
+
+typedef struct {
+	__u32 u[4];
+} __attribute((aligned(16))) vector128;
+
+#ifdef __KERNEL__
+/*
+ * These aren't exported outside the kernel to avoid name space clashes
+ */
+typedef signed char s8;
+typedef unsigned char u8;
+
+typedef signed short s16;
+typedef unsigned short u16;
+
+typedef signed int s32;
+typedef unsigned int u32;
+
+typedef signed long long s64;
+typedef unsigned long long u64;
+
+#define BITS_PER_LONG 32
+
+/* DMA addresses are 32-bits wide */
+typedef u32 dma_addr_t;
+
+#endif /* __KERNEL__ */
+#endif /* __ASSEMBLY__ */
+
+#endif

+ 69 - 0
include/asm-m68k/u-boot.h

@@ -0,0 +1,69 @@
+/*
+ * (C) Copyright 2000 - 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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 __U_BOOT_H__
+#define __U_BOOT_H__
+
+/*
+ * Board information passed to Linux kernel from U-Boot
+ *
+ * include/asm-ppc/u-boot.h
+ */
+
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+
+typedef struct bd_info {
+	unsigned long	bi_memstart;	/* start of DRAM memory */
+	unsigned long	bi_memsize;	/* size	 of DRAM memory in bytes */
+	unsigned long	bi_flashstart;	/* start of FLASH memory */
+	unsigned long	bi_flashsize;	/* size	 of FLASH memory */
+	unsigned long	bi_flashoffset; /* reserved area for startup monitor */
+	unsigned long	bi_sramstart;	/* start of SRAM memory */
+	unsigned long	bi_sramsize;	/* size	 of SRAM memory */
+	unsigned long	bi_bootflags;	/* boot / reboot flag (for LynxOS) */
+        unsigned long   bi_boot_params; /* where this board expects params */
+	unsigned long	bi_ip_addr;	/* IP Address */
+	unsigned char	bi_enetaddr[6];	/* Ethernet adress */
+	unsigned short	bi_ethspeed;	/* Ethernet speed in Mbps */
+	unsigned long	bi_intfreq;	/* Internal Freq, in MHz */
+	unsigned long	bi_busfreq;	/* Bus Freq, in MHz */
+	unsigned long	bi_baudrate;	/* Console Baudrate */
+} bd_t;
+
+#endif /* __ASSEMBLY__ */
+/* The following data structure is placed in DPRAM to allow for a
+ * minimum set of global variables during system initialization
+ * (until we have set up the memory controller so that we can use
+ * RAM).
+ *
+ * Keep it *SMALL* and remember to set CFG_INIT_DATA_SIZE > sizeof(init_data_t)
+ */
+typedef	struct	init_data {
+	unsigned long	cpu_clk;	/* VCOOUT = CPU clock in Hz!		*/
+	unsigned long	env_addr;	/* Address  of Environment struct	*/
+	unsigned long	env_valid;	/* Checksum of Environment valid?	*/
+	unsigned long	relocated;	/* Relocat. offset when running in RAM 	*/
+	unsigned long	have_console;	/* serial_init() was called		*/
+#ifdef CONFIG_LCD
+	unsigned long	lcd_base;	/* Base address of LCD frambuffer mem	*/
+#endif
+} init_data_t;
+#endif	/* __U_BOOT_H__ */

+ 40 - 0
include/configs/M5272C3.h

@@ -0,0 +1,40 @@
+#ifndef _CONFIG_M5272C3_H
+#define _CONFIG_M5272C3_H
+
+#define CONFIG_COMMANDS  ( CONFIG_CMD_DFL & ~(CFG_CMD_LOADS | CFG_CMD_LOADB) )
+#include <cmd_confdefs.h>
+#define CONFIG_BOOTDELAY 5
+
+#define CFG_MAX_FLASH_SECT 11
+#define CFG_CACHELINE_SIZE 16
+#define CFG_MALLOC_LEN (256 << 10)
+#define CFG_INIT_RAM_ADDR 0x20000000
+#define CFG_INIT_RAM_SIZE 0x1000
+#define CFG_INIT_DATA_OFFSET 0
+#define CONFIG_BAUDRATE 19200
+#define CFG_MONITOR_BASE 0x3e0000
+#define CFG_MONITOR_LEN 0x20000
+#define CFG_SDRAM_BASE 0
+#define CFG_FLASH_BASE 0xffe00000
+#define CFG_PROMPT "MCF5272C3> "
+#define CFG_CBSIZE 1024
+#define CFG_MAXARGS 64
+#define CFG_LOAD_ADDR 0x20000
+#define CFG_BOOTMAPSZ 0
+#define CFG_BARGSIZE CFG_CBSIZE
+#define CFG_BAUDRATE_TABLE { 9600 , 19200 , 38400 , 57600, 115200 }
+#define CFG_ENV_ADDR 0xffe04000
+#define CFG_ENV_SIZE 0x2000
+#define CFG_ENV_IS_IN_FLASH 1
+#define CFG_PBSIZE 1024
+#define CFG_MAX_FLASH_BANKS 1
+#define CFG_MEMTEST_START 0x400
+#define CFG_MEMTEST_END   0x380000
+#define CFG_HZ 1000000
+#define CFG_FLASH_ERASE_TOUT 10000000
+
+#define FEC_ENET
+
+#define CONFIG_M5272
+
+#endif	/* _CONFIG_M5272C3_H */

+ 40 - 0
include/configs/M5282EVB.h

@@ -0,0 +1,40 @@
+#ifndef _CONFIG_M5282EVB_H
+#define _CONFIG_M5282EVB_H
+
+#define CONFIG_COMMANDS  ( CONFIG_CMD_DFL & ~(CFG_CMD_LOADS | CFG_CMD_LOADB) )
+#include <cmd_confdefs.h>
+#define CONFIG_BOOTDELAY 5
+
+#define CFG_MAX_FLASH_SECT 35
+#define CFG_CACHELINE_SIZE 16
+#define CFG_MALLOC_LEN (256 << 10)
+#define CFG_INIT_RAM_ADDR 0x20000000
+#define CFG_INIT_RAM_SIZE 0x1000
+#define CFG_INIT_DATA_OFFSET 0
+#define CONFIG_BAUDRATE 19200
+#define CFG_MONITOR_BASE 0x3e0000
+#define CFG_MONITOR_LEN 0x20000
+#define CFG_SDRAM_BASE 0
+#define CFG_FLASH_BASE 0xffe00000
+#define CFG_PROMPT "M5282EVB> "
+#define CFG_CBSIZE 1024
+#define CFG_MAXARGS 64
+#define CFG_LOAD_ADDR 0x20000
+#define CFG_BOOTMAPSZ 0
+#define CFG_BARGSIZE CFG_CBSIZE
+#define CFG_BAUDRATE_TABLE { 9600 , 19200 , 38400 , 57600, 115200 }
+#define CFG_ENV_ADDR 0xffe04000
+#define CFG_ENV_SIZE 0x2000
+#define CFG_ENV_IS_IN_FLASH 1
+#define CFG_PBSIZE 1024
+#define CFG_MAX_FLASH_BANKS 1
+#define CFG_MEMTEST_START 0x400
+#define CFG_MEMTEST_END   0x380000
+#define CFG_HZ 1000000
+#define CFG_FLASH_ERASE_TOUT 10000000
+
+#define FEC_ENET
+
+#define CONFIG_M5282
+
+#endif	/* _CONFIG_M5282EVB_H */

+ 2 - 0
include/flash.h

@@ -136,6 +136,8 @@ extern int flash_real_protect(flash_info_t *info, long sector, int prot);
 #define AMD_ID_LV116DT	0xC7		/* 29LV116DT   ( 2 M x 8, top boot sect) */
 #define AMD_ID_LV016B	0xc8		/* 29LV016 ID  ( 2 M x 8)		*/
 
+#define AMD_ID_PL160CB  0x22452245      /* 29PL160CB ID (16 M, bottom boot sect */
+
 #define AMD_ID_LV400T	0x22B922B9	/* 29LV400T ID ( 4 M, top boot sector)	*/
 #define AMD_ID_LV400B	0x22BA22BA	/* 29LV400B ID ( 4 M, bottom boot sect) */
 

+ 493 - 0
lib_m68k/board.c

@@ -0,0 +1,493 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <command.h>
+#include <malloc.h>
+#include <devices.h>
+#include <syscall.h>
+#if (CONFIG_COMMANDS & CFG_CMD_IDE)
+#include <ide.h>
+#endif
+#if (CONFIG_COMMANDS & CFG_CMD_SCSI)
+#include <scsi.h>
+#endif
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#include <kgdb.h>
+#endif
+#ifdef CONFIG_STATUS_LED
+#include <status_led.h>
+#endif
+#include <net.h>
+#if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
+#include <cmd_bedbug.h>
+#endif
+#ifdef CFG_ALLOC_DPRAM
+#include <commproc.h>
+#endif
+#include <version.h>
+
+static char *failed = "*** failed ***\n";
+
+#ifdef	CONFIG_PCU_E
+extern flash_info_t flash_info[];
+#endif
+
+#if defined(CFG_ENV_IS_IN_FLASH)
+# ifndef  CFG_ENV_ADDR
+#  define CFG_ENV_ADDR	(CFG_FLASH_BASE + CFG_ENV_OFFSET)
+# endif
+# ifndef  CFG_ENV_SIZE
+#  define CFG_ENV_SIZE	CFG_ENV_SECT_SIZE
+# endif
+# if (CFG_ENV_ADDR >= CFG_MONITOR_BASE) && \
+     (CFG_ENV_ADDR+CFG_ENV_SIZE) < (CFG_MONITOR_BASE + CFG_MONITOR_LEN)
+#  define ENV_IS_EMBEDDED
+# endif
+#endif /* CFG_ENV_IS_IN_FLASH */
+#if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
+      (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
+    defined(CFG_ENV_IS_IN_NVRAM)
+#define	TOTAL_MALLOC_LEN	(CFG_MALLOC_LEN + CFG_ENV_SIZE)
+#else
+#define	TOTAL_MALLOC_LEN	CFG_MALLOC_LEN
+#endif
+
+/*
+ * Begin and End of memory area for malloc(), and current "brk"
+ */
+static ulong mem_malloc_start = 0;
+static ulong mem_malloc_end = 0;
+static ulong mem_malloc_brk = 0;
+
+/************************************************************************
+ * Utilities								*
+ ************************************************************************
+ */
+
+/*
+ * The Malloc area is immediately below the monitor copy in DRAM
+ */
+static void mem_malloc_init (ulong dest_addr)
+{
+	mem_malloc_end = dest_addr;
+	mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
+	mem_malloc_brk = mem_malloc_start;
+
+	memset ((void *) mem_malloc_start, 0,
+		mem_malloc_end - mem_malloc_start);
+}
+
+void *sbrk (ptrdiff_t increment)
+{
+	ulong old = mem_malloc_brk;
+	ulong new = old + increment;
+
+	if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
+		return (NULL);
+	}
+	mem_malloc_brk = new;
+	return ((void *) old);
+}
+
+char *strmhz (char *buf, long hz)
+{
+	long l, n;
+	long m;
+
+	n = hz / 1000000L;
+
+	l = sprintf (buf, "%ld", n);
+
+	m = (hz % 1000000L) / 1000L;
+
+	if (m != 0)
+		sprintf (buf + l, ".%03ld", m);
+
+	return (buf);
+}
+
+static void syscalls_init (int reloc_off)
+{
+	ulong *addr;
+
+	addr = (ulong *) syscall_tbl;
+	syscall_tbl[SYSCALL_MALLOC] = (void *) malloc;
+	syscall_tbl[SYSCALL_FREE] = (void *) free;
+
+	syscall_tbl[SYSCALL_INSTALL_HDLR] = (void *) irq_install_handler;
+	syscall_tbl[SYSCALL_FREE_HDLR] = (void *) irq_free_handler;
+
+	addr = (ulong *) 0xc00;	/* syscall ISR addr */
+
+	/* patch ISR code */
+	*addr++ |= (ulong) syscall_tbl >> 16;
+	*addr++ |= (ulong) syscall_tbl & 0xFFFF;
+	*addr++ |= NR_SYSCALLS >> 16;
+	*addr++ |= NR_SYSCALLS & 0xFFFF;
+}
+
+/************************************************************************
+ *
+ * This is the first part of the initialization sequence that is
+ * implemented in C, but still running from ROM.
+ *
+ * The main purpose is to provide a (serial) console interface as
+ * soon as possible (so we can see any error messages), and to
+ * initialize the RAM so that we can relocate the monitor code to
+ * RAM.
+ *
+ * Be aware of the restrictions: global data is read-only, BSS is not
+ * initialized, and stack space is limited to a few kB.
+ *
+ ************************************************************************
+ */
+
+
+gd_t *global_data;
+static gd_t gdata;
+static bd_t bdata;
+
+void board_init_f (ulong bootflag)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	bd_t *bd;
+	ulong reg, len, addr, addr_sp, dram_size;
+	int i, baudrate, board_type;
+	char *s, *e;
+	uchar tmp[64];		/* long enough for environment variables */
+
+	/* Pointer to initial global data area */
+	gd = global_data = &gdata;
+	bd = gd->bd = &bdata;
+
+	init_timebase ();
+	env_init ();
+
+	i = getenv_r ("baudrate", tmp, sizeof (tmp));
+	baudrate =
+		(i > 0) ? (int) simple_strtoul (tmp, NULL,
+						10) : CONFIG_BAUDRATE;
+	bd->bi_baudrate = baudrate;	/* Console Baudrate             */
+
+	/* set up serial port */
+	serial_init ();
+
+	/* Initialize the console (before the relocation) */
+	console_init_f ();
+
+#ifdef DEBUG
+	if (sizeof (init_data_t) > CFG_INIT_DATA_SIZE) {
+		printf ("PANIC: sizeof(init_data_t)=%d > CFG_INIT_DATA_SIZE=%d\n", sizeof (init_data_t), CFG_INIT_DATA_SIZE);
+		hang ();
+	}
+#endif /* DEBUG */
+
+	/* now we can use standard printf/puts/getc/tstc functions */
+	display_options ();
+
+	puts ("CPU:   ");	/* Check CPU            */
+	if (checkcpu () < 0) {
+		puts (failed);
+		hang ();
+	}
+
+	puts ("Board: ");	/* Check Board          */
+	if ((board_type = checkboard ()) < 0) {
+		puts (failed);
+		hang ();
+	}
+
+	puts ("DRAM:  ");
+	if ((dram_size = initdram (board_type)) > 0) {
+		printf ("%2ld MB\n", dram_size >> 20);
+	} else {
+		puts (failed);
+		hang ();
+	}
+
+#if defined(CFG_DRAM_TEST)
+	if (testdram () != 0) {
+		hang ();
+	}
+#endif /* CFG_DRAM_TEST */
+
+	/*
+	 * Now that we have DRAM mapped and working, we can
+	 * relocate the code and continue running from DRAM.
+	 *
+	 * Reserve memory at end of RAM for (top down in that order):
+	 *  - protected RAM
+	 *  - LCD framebuffer
+	 *  - monitor code
+	 *  - board info struct
+	 */
+	len = get_endaddr () - CFG_MONITOR_BASE;
+
+	if (len > CFG_MONITOR_LEN) {
+		printf ("*** u-boot size %ld > reserved memory (%d)\n",
+			len, CFG_MONITOR_LEN);
+		hang ();
+	}
+
+	if (CFG_MONITOR_LEN > len)
+		len = CFG_MONITOR_LEN;
+
+	addr = CFG_SDRAM_BASE + dram_size;
+	addr -= len;
+
+	/*
+	 * Save local variables to board info struct
+	 */
+	bd->bi_memstart = CFG_SDRAM_BASE;	/* start of  DRAM memory              */
+	bd->bi_memsize = dram_size;	/* size  of  DRAM memory in bytes     */
+	bd->bi_bootflags = bootflag;	/* boot / reboot flag (for LynxOS)    */
+
+	i = getenv_r ("ethaddr", tmp, sizeof (tmp));
+	s = (i > 0) ? tmp : NULL;
+
+	for (reg = 0; reg < 6; ++reg) {
+		bd->bi_enetaddr[reg] = s ? simple_strtoul (s, &e, 16) : 0;
+		if (s)
+			s = (*e) ? e + 1 : e;
+	}
+
+	bd->bi_intfreq = get_gclk_freq ();	/* Internal Freq, in Hz */
+	bd->bi_busfreq = get_bus_freq (get_gclk_freq ());	/* Bus Freq,      in Hz */
+
+#ifdef CFG_EXTBDINFO
+	strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
+	strncpy (bd->bi_r_version, PPCBOOT_VERSION,
+		 sizeof (bd->bi_r_version));
+
+	bd->bi_procfreq = get_gclk_freq ();	/* Processor Speed, In Hz */
+	bd->bi_plb_busfreq = bd->bi_busfreq;
+#endif
+
+	board_init_final (addr);
+
+}
+
+
+/************************************************************************
+ *
+ * This is the next part if the initialization sequence: we are now
+ * running from RAM and have a "normal" C environment, i. e. global
+ * data can be written, BSS has been cleared, the stack size in not
+ * that critical any more, etc.
+ *
+ ************************************************************************
+ */
+
+void board_init_final (ulong dest_addr)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	char *s;
+	cmd_tbl_t *cmdtp;
+	ulong flash_size;
+	bd_t *bd;
+
+	bd = gd->bd;
+	// icache_enable(); /* it's time to enable the instruction cache */
+
+	/*
+	 * Setup trap handlers
+	 */
+	trap_init (dest_addr);
+
+	puts ("FLASH: ");
+
+	if ((flash_size = flash_init ()) > 0) {
+#ifdef CFG_FLASH_CHECKSUM
+		if (flash_size >= (1 << 20)) {
+			printf ("%2ld MB", flash_size >> 20);
+		} else {
+			printf ("%2ld kB", flash_size >> 10);
+		}
+		/*
+		 * Compute and print flash CRC if flashchecksum is set to 'y'
+		 *
+		 * NOTE: Maybe we should add some WATCHDOG_RESET()?     XXX
+		 */
+		s = getenv ("flashchecksum");
+		if (s && (*s == 'y')) {
+			printf ("  CRC: %08lX",
+				crc32 (0,
+				       (const unsigned char *) CFG_FLASH_BASE,
+				       flash_size)
+				);
+		}
+		putc ('\n');
+#else
+		if (flash_size >= (1 << 20)) {
+			printf ("%2ld MB\n", flash_size >> 20);
+		} else {
+			printf ("%2ld kB\n", flash_size >> 10);
+		}
+#endif /* CFG_FLASH_CHECKSUM */
+	} else {
+		puts (failed);
+		hang ();
+	}
+
+	bd->bi_flashstart = CFG_FLASH_BASE;	/* update start of FLASH memory        */
+	bd->bi_flashsize = flash_size;	/* size of FLASH memory (final value)     */
+	bd->bi_flashoffset = 0x10000;	/* reserved area for startup monitor  */
+
+	WATCHDOG_RESET ();
+
+	/* initialize higher level parts of CPU like time base and timers */
+	cpu_init_r ();
+
+	WATCHDOG_RESET ();
+
+	/* initialize malloc() area */
+	mem_malloc_init (dest_addr);
+
+#ifdef CONFIG_SPI
+# if !defined(CFG_ENV_IS_IN_EEPROM)
+	spi_init_f ();
+# endif
+	spi_init_r ();
+#endif
+
+	/* relocate environment function pointers etc. */
+	env_relocate ();
+
+	/* IP Address */
+	bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
+
+	WATCHDOG_RESET ();
+
+	/* allocate syscalls table (console_init_r will fill it in */
+	syscall_tbl = (void **) malloc (NR_SYSCALLS * sizeof (void *));
+
+	/* Initialize the console (after the relocation and devices init) */
+
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET) && ( \
+    defined(CONFIG_CCM)		|| \
+    defined(CONFIG_EP8260)	|| \
+    defined(CONFIG_IP860)	|| \
+    defined(CONFIG_IVML24)	|| \
+    defined(CONFIG_IVMS8)	|| \
+    defined(CONFIG_LWMON)	|| \
+    defined(CONFIG_MPC8260ADS)	|| \
+    defined(CONFIG_PCU_E)	|| \
+    defined(CONFIG_RPXSUPER)	|| \
+    defined(CONFIG_SPD823TS)	)
+
+	WATCHDOG_RESET ();
+# ifdef DEBUG
+	puts ("Reset Ethernet PHY\n");
+# endif
+	reset_phy ();
+#endif
+
+
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+	WATCHDOG_RESET ();
+	puts ("KGDB:  ");
+	kgdb_init ();
+#endif
+
+	/*
+	 * Enable Interrupts
+	 */
+	interrupt_init ();
+	udelay (20);
+	set_timer (0);
+
+	/* Insert function pointers now that we have relocated the code */
+
+	/* Initialize from environment */
+	if ((s = getenv ("loadaddr")) != NULL) {
+		load_addr = simple_strtoul (s, NULL, 16);
+	}
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+	if ((s = getenv ("bootfile")) != NULL) {
+		copy_filename (BootFile, s, sizeof (BootFile));
+	}
+#endif /* CFG_CMD_NET */
+
+	WATCHDOG_RESET ();
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
+	WATCHDOG_RESET ();
+	puts ("Net:   ");
+	eth_initialize (bd);
+#endif
+
+#ifdef CONFIG_LAST_STAGE_INIT
+	WATCHDOG_RESET ();
+	/*
+	 * Some parts can be only initialized if all others (like
+	 * Interrupts) are up and running (i.e. the PC-style ISA
+	 * keyboard).
+	 */
+	last_stage_init ();
+#endif
+
+#if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
+	WATCHDOG_RESET ();
+	bedbug_init ();
+#endif
+
+#ifdef CONFIG_PRAM
+	/*
+	 * Export available size of memory for Linux,
+	 * taking into account the protected RAM at top of memory
+	 */
+	{
+		ulong pram;
+		char *s;
+		uchar memsz[32];
+
+		if ((s = getenv ("pram")) != NULL) {
+			pram = simple_strtoul (s, NULL, 10);
+		} else {
+			pram = CONFIG_PRAM;
+		}
+		sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
+		setenv ("mem", memsz);
+	}
+#endif
+
+	/* Initialization complete - start the monitor */
+
+	/* main_loop() can return to retry autoboot, if so just run it again. */
+	for (;;) {
+		WATCHDOG_RESET ();
+		main_loop ();
+	}
+
+	/* NOTREACHED - no way out of command loop except booting */
+}
+
+void hang (void)
+{
+	puts ("### ERROR ### Please RESET the board ###\n");
+	for (;;);
+}

+ 83 - 0
lib_m68k/extable.c

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 1999  Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se>
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+
+/*
+ * The exception table consists of pairs of addresses: the first is the
+ * address of an instruction that is allowed to fault, and the second is
+ * the address at which the program should continue.  No registers are
+ * modified, so it is entirely up to the continuation code to figure out
+ * what to do.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path.  This means when everything is well,
+ * we don't even have to jump over them.  Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+
+struct exception_table_entry {
+	unsigned long insn, fixup;
+};
+
+extern const struct exception_table_entry __start___ex_table[];
+extern const struct exception_table_entry __stop___ex_table[];
+
+static inline unsigned long
+search_one_table (const struct exception_table_entry *first,
+		  const struct exception_table_entry *last,
+		  unsigned long value)
+{
+	while (first <= last) {
+		const struct exception_table_entry *mid;
+		long diff;
+
+		mid = (last - first) / 2 + first;
+		diff = mid->insn - value;
+		if (diff == 0)
+			return mid->fixup;
+		else if (diff < 0)
+			first = mid + 1;
+		else
+			last = mid - 1;
+	}
+	return 0;
+}
+
+int ex_tab_message = 1;
+
+unsigned long search_exception_table (unsigned long addr)
+{
+	unsigned long ret;
+
+	/* There is only the kernel to search.  */
+	ret = search_one_table (__start___ex_table, __stop___ex_table - 1,
+				addr);
+	if (ex_tab_message)
+		printf ("Bus Fault @ 0x%08lx, fixup 0x%08lx\n", addr, ret);
+	if (ret)
+		return ret;
+
+	return 0;
+}

+ 274 - 0
lib_m68k/m68k_linux.c

@@ -0,0 +1,274 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <common.h>
+#include <command.h>
+#include <cmd_boot.h>
+#include <image.h>
+#include <zlib.h>
+#include <asm/byteorder.h>
+
+#define PHYSADDR(x) x
+
+#define	LINUX_MAX_ENVS		256
+#define	LINUX_MAX_ARGS		256
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+# include <status_led.h>
+# define SHOW_BOOT_PROGRESS(arg)	show_boot_progress(arg)
+#else
+# define SHOW_BOOT_PROGRESS(arg)
+#endif
+
+extern image_header_t header;	/* from cmd_bootm.c */
+
+static int linux_argc;
+static char **linux_argv;
+
+static char **linux_env;
+static char *linux_env_p;
+static int linux_env_idx;
+
+static void linux_params_init (ulong start, char *commandline);
+static void linux_env_set (char *env_name, char *env_val);
+
+
+void do_bootm_linux (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[],
+		     ulong addr, ulong * len_ptr, int verify)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	ulong len = 0, checksum;
+	ulong initrd_start, initrd_end;
+	ulong data;
+	void (*theKernel) (int, char **, char **, int *);
+	image_header_t *hdr = &header;
+	char *commandline = getenv ("bootargs");
+	char env_buf[12];
+
+	theKernel =
+		(void (*)(int, char **, char **, int *)) ntohl (hdr->ih_ep);
+
+	/*
+	 * Check if there is an initrd image
+	 */
+	if (argc >= 3) {
+		SHOW_BOOT_PROGRESS (9);
+
+		addr = simple_strtoul (argv[2], NULL, 16);
+
+		printf ("## Loading Ramdisk Image at %08lx ...\n", addr);
+
+		/* Copy header so we can blank CRC field for re-calculation */
+		memcpy (&header, (char *) addr, sizeof (image_header_t));
+
+		if (ntohl (hdr->ih_magic) != IH_MAGIC) {
+			printf ("Bad Magic Number\n");
+			SHOW_BOOT_PROGRESS (-10);
+			do_reset (cmdtp, flag, argc, argv);
+		}
+
+		data = (ulong) & header;
+		len = sizeof (image_header_t);
+
+		checksum = ntohl (hdr->ih_hcrc);
+		hdr->ih_hcrc = 0;
+
+		if (crc32 (0, (char *) data, len) != checksum) {
+			printf ("Bad Header Checksum\n");
+			SHOW_BOOT_PROGRESS (-11);
+			do_reset (cmdtp, flag, argc, argv);
+		}
+
+		SHOW_BOOT_PROGRESS (10);
+
+		print_image_hdr (hdr);
+
+		data = addr + sizeof (image_header_t);
+		len = ntohl (hdr->ih_size);
+
+		if (verify) {
+			ulong csum = 0;
+
+			printf ("   Verifying Checksum ... ");
+			csum = crc32 (0, (char *) data, len);
+			if (csum != ntohl (hdr->ih_dcrc)) {
+				printf ("Bad Data CRC\n");
+				SHOW_BOOT_PROGRESS (-12);
+				do_reset (cmdtp, flag, argc, argv);
+			}
+			printf ("OK\n");
+		}
+
+		SHOW_BOOT_PROGRESS (11);
+
+		if ((hdr->ih_os != IH_OS_LINUX) ||
+		    (hdr->ih_arch != IH_CPU_MIPS) ||
+		    (hdr->ih_type != IH_TYPE_RAMDISK)) {
+			printf ("No Linux MIPS Ramdisk Image\n");
+			SHOW_BOOT_PROGRESS (-13);
+			do_reset (cmdtp, flag, argc, argv);
+		}
+
+		/*
+		 * Now check if we have a multifile image
+		 */
+	} else if ((hdr->ih_type == IH_TYPE_MULTI) && (len_ptr[1])) {
+		ulong tail = ntohl (len_ptr[0]) % 4;
+		int i;
+
+		SHOW_BOOT_PROGRESS (13);
+
+		/* skip kernel length and terminator */
+		data = (ulong) (&len_ptr[2]);
+		/* skip any additional image length fields */
+		for (i = 1; len_ptr[i]; ++i)
+			data += 4;
+		/* add kernel length, and align */
+		data += ntohl (len_ptr[0]);
+		if (tail) {
+			data += 4 - tail;
+		}
+
+		len = ntohl (len_ptr[1]);
+
+	} else {
+		/*
+		 * no initrd image
+		 */
+		SHOW_BOOT_PROGRESS (14);
+
+		data = 0;
+	}
+
+#ifdef	DEBUG
+	if (!data) {
+		printf ("No initrd\n");
+	}
+#endif
+
+	if (data) {
+		initrd_start = data;
+		initrd_end = initrd_start + len;
+	} else {
+		initrd_start = 0;
+		initrd_end = 0;
+	}
+
+	SHOW_BOOT_PROGRESS (15);
+
+#ifdef DEBUG
+	printf ("## Transferring control to Linux (at address %08lx) ...\n",
+		(ulong) theKernel);
+#endif
+
+	linux_params_init (PHYSADDR (gd->bd->bi_boot_params), commandline);
+
+	sprintf (env_buf, "%lu", gd->ram_size >> 20);
+	linux_env_set ("memsize", env_buf);
+
+	sprintf (env_buf, "0x%08X", (uint) PHYSADDR (initrd_start));
+	linux_env_set ("initrd_start", env_buf);
+
+	sprintf (env_buf, "0x%X", (uint) (initrd_end - initrd_start));
+	linux_env_set ("initrd_size", env_buf);
+
+	sprintf (env_buf, "0x%08X", (uint) (gd->bd->bi_flashstart));
+	linux_env_set ("flash_start", env_buf);
+
+	sprintf (env_buf, "0x%X", (uint) (gd->bd->bi_flashsize));
+	linux_env_set ("flash_size", env_buf);
+
+	/* we assume that the kernel is in place */
+	printf ("\nStarting kernel ...\n\n");
+
+	theKernel (linux_argc, linux_argv, linux_env, 0);
+}
+
+static void linux_params_init (ulong start, char *line)
+{
+	char *next, *quote, *argp;
+
+	linux_argc = 1;
+	linux_argv = (char **) start;
+	linux_argv[0] = 0;
+	argp = (char *) (linux_argv + LINUX_MAX_ARGS);
+
+	next = line;
+
+	while (line && *line && linux_argc < LINUX_MAX_ARGS) {
+		quote = strchr (line, '"');
+		next = strchr (line, ' ');
+
+		while (next != NULL && quote != NULL && quote < next) {
+			/* we found a left quote before the next blank
+			 * now we have to find the matching right quote
+			 */
+			next = strchr (quote + 1, '"');
+			if (next != NULL) {
+				quote = strchr (next + 1, '"');
+				next = strchr (next + 1, ' ');
+			}
+		}
+
+		if (next == NULL) {
+			next = line + strlen (line);
+		}
+
+		linux_argv[linux_argc] = argp;
+		memcpy (argp, line, next - line);
+		argp[next - line] = 0;
+
+		argp += next - line + 1;
+		linux_argc++;
+
+		if (*next)
+			next++;
+
+		line = next;
+	}
+
+	linux_env = (char **) (((ulong) argp + 15) & ~15);
+	linux_env[0] = 0;
+	linux_env_p = (char *) (linux_env + LINUX_MAX_ENVS);
+	linux_env_idx = 0;
+}
+
+static void linux_env_set (char *env_name, char *env_val)
+{
+	if (linux_env_idx < LINUX_MAX_ENVS - 1) {
+		linux_env[linux_env_idx] = linux_env_p;
+
+		strcpy (linux_env_p, env_name);
+		linux_env_p += strlen (env_name);
+
+		strcpy (linux_env_p, "=");
+		linux_env_p += 1;
+
+		strcpy (linux_env_p, env_val);
+		linux_env_p += strlen (env_val);
+
+		linux_env_p++;
+		linux_env[++linux_env_idx] = 0;
+	}
+}

+ 87 - 0
lib_m68k/time.c

@@ -0,0 +1,87 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * This function is intended for SHORT delays only.
+ * It will overflow at around 10 seconds @ 400MHz,
+ * or 20 seconds @ 200MHz.
+ */
+unsigned long usec2ticks(unsigned long usec)
+{
+	ulong ticks;
+
+	if (usec < 1000) {
+		ticks = ((usec * (get_tbclk()/1000)) + 500) / 1000;
+	} else {
+		ticks = ((usec / 10) * (get_tbclk() / 100000));
+	}
+
+	return (ticks);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * We implement the delay by converting the delay (the number of
+ * microseconds to wait) into a number of time base ticks; then we
+ * watch the time base until it has incremented by that amount.
+ */
+void udelay(unsigned long usec)
+{
+	ulong ticks = usec2ticks (usec);
+
+	wait_ticks (ticks);
+}
+
+/* ------------------------------------------------------------------------- */
+
+unsigned long ticks2usec(unsigned long ticks)
+{
+	ulong tbclk = get_tbclk();
+
+	/* usec = ticks * 1000000 / tbclk
+	 * Multiplication would overflow at ~4.2e3 ticks,
+	 * so we break it up into
+	 * usec = ( ( ticks * 1000) / tbclk ) * 1000;
+	 */
+	ticks *= 1000L;
+	ticks /= tbclk;
+	ticks *= 1000L;
+
+	return ((ulong)ticks);
+}
+
+/* ------------------------------------------------------------------------- */
+
+int init_timebase (void)
+{
+	/* FIXME!! */
+	return 0;
+}
+
+/* ------------------------------------------------------------------------- */

+ 25 - 0
m68k_config.mk

@@ -0,0 +1,25 @@
+#
+# (C) Copyright 2000-2002
+# 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
+#
+
+PLATFORM_CPPFLAGS += -DCONFIG_M68K -D__M68K__
+PLATFORM_LDFLAGS  += -n