* Patch by Bernhard Kuhn, 28 Nov 2003:

  add support for Coldfire CPU
  add support for Motorola M5272C3 and M5282EVB boards

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

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

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
 #########################################################################

board/m5272c3/Makefile

+#
+# (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
+
+#########################################################################

board/m5272c3/config.mk

+#
+# (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

board/m5272c3/flash.c

+/*
+ * (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;
+}

board/m5272c3/m5272c3.c

+/*
+ * (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;
+}

board/m5272c3/u-boot.lds

+/*
+ * (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)