Patch by Florian Schlote, 08 Sep 2004:

Add support for SenTec-COBRA5272-board (Coldfire).

9 files changed, 815 insertions, 0 deletions

diff --git a/board/cobra5272/Makefile b/board/cobra5272/Makefile
new file mode 100644
index 00000000000..e5d84463133
--- /dev/null
+++ b/board/cobra5272/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 $@ $(OBJS)
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################
diff --git a/board/cobra5272/bdm/cobra5272_uboot.gdb b/board/cobra5272/bdm/cobra5272_uboot.gdb
new file mode 100644
index 00000000000..61e778ea5f5
--- /dev/null
+++ b/board/cobra5272/bdm/cobra5272_uboot.gdb
@@ -0,0 +1,169 @@
+#
+# GDB Init script for the Coldfire 5272 processor.
+#
+# The main purpose of this script is to configure the 
+# DRAM controller so code can be loaded.
+#
+# This file was changed to suite the senTec COBRA5272 board.
+# 
+
+define addresses
+
+set $mbar  = 0x10000001
+set $scr   = $mbar - 1 + 0x004
+set $spr   = $mbar - 1 + 0x006
+set $pmr   = $mbar - 1 + 0x008
+set $apmr  = $mbar - 1 + 0x00e
+set $dir   = $mbar - 1 + 0x010
+set $icr1  = $mbar - 1 + 0x020
+set $icr2  = $mbar - 1 + 0x024
+set $icr3  = $mbar - 1 + 0x028
+set $icr4  = $mbar - 1 + 0x02c
+set $isr   = $mbar - 1 + 0x030
+set $pitr  = $mbar - 1 + 0x034
+set $piwr  = $mbar - 1 + 0x038
+set $pivr  = $mbar - 1 + 0x03f
+set $csbr0 = $mbar - 1 + 0x040
+set $csor0 = $mbar - 1 + 0x044
+set $csbr1 = $mbar - 1 + 0x048
+set $csor1 = $mbar - 1 + 0x04c
+set $csbr2 = $mbar - 1 + 0x050
+set $csor2 = $mbar - 1 + 0x054
+set $csbr3 = $mbar - 1 + 0x058
+set $csor3 = $mbar - 1 + 0x05c
+set $csbr4 = $mbar - 1 + 0x060
+set $csor4 = $mbar - 1 + 0x064
+set $csbr5 = $mbar - 1 + 0x068
+set $csor5 = $mbar - 1 + 0x06c
+set $csbr6 = $mbar - 1 + 0x070
+set $csor6 = $mbar - 1 + 0x074
+set $csbr7 = $mbar - 1 + 0x078
+set $csor7 = $mbar - 1 + 0x07c
+set $pacnt = $mbar - 1 + 0x080
+set $paddr = $mbar - 1 + 0x084
+set $padat = $mbar - 1 + 0x086
+set $pbcnt = $mbar - 1 + 0x088
+set $pbddr = $mbar - 1 + 0x08c
+set $pbdat = $mbar - 1 + 0x08e
+set $pcddr = $mbar - 1 + 0x094
+set $pcdat = $mbar - 1 + 0x096
+set $pdcnt = $mbar - 1 + 0x098
+set $sdcr  = $mbar - 1 + 0x180
+set $sdtr  = $mbar - 1 + 0x184
+set $wrrr  = $mbar - 1 + 0x280
+set $wirr  = $mbar - 1 + 0x283
+set $wcr   = $mbar - 1 + 0x288
+set $wer   = $mbar - 1 + 0x28c
+
+end
+
+
+#
+# Setup system configuration
+#
+define setup-sys
+set *((unsigned short *) $scr) = 0x0003
+set *((unsigned short *) $spr) = 0xffff
+set *((unsigned char *) $pivr) = 0x4f
+end
+
+
+#
+# Setup Chip Selects (as per Motorola M5272C3 board)
+#
+define setup-cs
+
+# CS0 -- FLASH
+set *((unsigned long *) $csbr0) = 0xffe00201
+set *((unsigned long *) $csor0) = 0xffe00014
+
+# CS1 -- external bus test
+set *((unsigned long *) $csbr1) = 0x0
+set *((unsigned long *) $csor1) = 0x0
+
+# CS2 -- Optional FSRAM
+set *((unsigned long *) $csbr2) = 0x30000001
+set *((unsigned long *) $csor2) = 0xfff80000
+
+# CS3 -- not used
+set *((unsigned long *) $csbr3) = 0x0
+set *((unsigned long *) $csor3) = 0x0
+
+# CS4 --  not used
+set *((unsigned long *) $csbr4) = 0x0
+set *((unsigned long *) $csor4) = 0x0
+
+# CS5 -- PLI socket0
+set *((unsigned long *) $csbr5) = 0x0
+set *((unsigned long *) $csor5) = 0x0
+
+# CS6 -- PLI socket1
+set *((unsigned long *) $csbr6) = 0x0
+set *((unsigned long *) $csor6) = 0x0
+
+# CS7 -- SDRAM
+set *((unsigned long *) $csbr7) = 0x00000701
+set *((unsigned long *) $csor7) = 0xff00007c
+
+end
+
+
+#
+# Setup the DRAM controller.
+#
+
+define setup-dram
+set *((unsigned long *) $sdtr) = 0x0000f539
+set *((unsigned long *) $sdcr) = 0x00004211
+
+# Dummy write to start SDRAM
+set *((unsigned long *) 0) = 0
+end
+
+
+#
+# Setup for GPIO pins
+#
+define setup-ppio
+
+# PORT A -- the LED's
+set *((unsigned long *) $pacnt) = 0x00000000
+# lower 8 bits for output:
+set *((unsigned short *) $paddr) = 0xff
+# LED's off:
+set *((unsigned short *) $padat) = 0xff
+
+# PORT B
+set *((unsigned long *) $pbcnt) = 0x55554155
+set *((unsigned short *) $pbddr) = 0x0000
+set *((unsigned short *) $pbdat) = 0x17ea
+
+# PORT C
+#set *((unsigned short *) $pcddr) = 0x0000
+#set *((unsigned short *) $pcdat) = 0x1898
+
+# PORT D
+set *((unsigned long *) $pdcnt) = 0x00000000
+
+end
+
+
+#
+#	Added for uClinux-coldfire target...
+#
+target bdm /dev/bdm
+
+addresses
+setup-sys
+setup-cs
+setup-dram
+setup-ppio
+set print pretty
+set print asm-demangle
+display/i $pc
+
+
+#
+load u-boot
+set $pc=0x20000
+c
diff --git a/board/cobra5272/bdm/gdbinit.reset b/board/cobra5272/bdm/gdbinit.reset
new file mode 100644
index 00000000000..5f1e48217ca
--- /dev/null
+++ b/board/cobra5272/bdm/gdbinit.reset
@@ -0,0 +1,2 @@
+target bdm /dev/bdmcf0
+q
diff --git a/board/cobra5272/bdm/load-cobra_uboot b/board/cobra5272/bdm/load-cobra_uboot
new file mode 100644
index 00000000000..933c7e72358
--- /dev/null
+++ b/board/cobra5272/bdm/load-cobra_uboot
@@ -0,0 +1,2 @@
+m68k-bdm-elf-gdb -n -x board/cobra5272/bdm/cobra5272_uboot.gdb u-boot
+
diff --git a/board/cobra5272/bdm/reset b/board/cobra5272/bdm/reset
new file mode 100644
index 00000000000..8bef00bf1ca
--- /dev/null
+++ b/board/cobra5272/bdm/reset
@@ -0,0 +1,2 @@
+m68k-bdm-elf-gdb -n -x bdm/gdbinit.reset
+
diff --git a/board/cobra5272/cobra5272.c b/board/cobra5272/cobra5272.c
new file mode 100644
index 00000000000..26adb4abb1f
--- /dev/null
+++ b/board/cobra5272/cobra5272.c
@@ -0,0 +1,55 @@
+/*
+ * (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/m5272.h>
+#include <asm/immap_5272.h>
+
+
+int checkboard (void)
+{
+	puts ("Board: ");
+	puts ("senTec COBRA5272 Board\n");
+	return 0;
+};
+
+long int initdram (int board_type)
+{
+	volatile sdramctrl_t *sdp = (sdramctrl_t *) (CFG_MBAR + MCFSIM_SDCR);
+
+	sdp->sdram_sdtr = 0xf539;
+	sdp->sdram_sdcr = 0x4211;
+
+	/* Dummy write to start SDRAM */
+	*((volatile unsigned long *) 0) = 0;
+
+	return CFG_SDRAM_SIZE * 1024 * 1024;
+};
+
+int testdram (void)
+{
+	/* TODO: XXX XXX XXX */
+	printf ("DRAM test not implemented!\n");
+
+	return (0);
+}
diff --git a/board/cobra5272/config.mk b/board/cobra5272/config.mk
new file mode 100644
index 00000000000..ccb2cf735df
--- /dev/null
+++ b/board/cobra5272/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 = 0xffe00000
diff --git a/board/cobra5272/flash.c b/board/cobra5272/flash.c
new file mode 100644
index 00000000000..6f5874a6719
--- /dev/null
+++ b/board/cobra5272/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;
+}
diff --git a/board/cobra5272/u-boot.lds b/board/cobra5272/u-boot.lds
new file mode 100644
index 00000000000..ed20c5967e0
--- /dev/null
+++ b/board/cobra5272/u-boot.lds
@@ -0,0 +1,142 @@
+/*
+ * (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
+ */
+
+OUTPUT_ARCH(m68k)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/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/mcf52x2/start.o		(.text)
+    cpu/mcf52x2/cpu_init.o	(.text)
+    lib_m68k/traps.o		(.text)
+    cpu/mcf52x2/interrupts.o	(.text)
+    common/dlmalloc.o		(.text)
+    lib_generic/zlib.o		(.text)
+
+    . = DEFINED(env_offset) ? 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_start = .;
+    *(.got)
+    __got_end = .;
+    _GOT2_TABLE_ = .;
+    *(.got2)
+    _FIXUP_TABLE_ = .;
+    *(.fixup)
+  }
+  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+  __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+  .data    :
+  {
+    *(.data)
+    *(.data1)
+    *(.sdata)
+    *(.sdata2)
+    *(.dynamic)
+    CONSTRUCTORS
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  __u_boot_cmd_start = .;
+  .u_boot_cmd : { *(.u_boot_cmd) }
+  __u_boot_cmd_end = .;
+
+
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  . = ALIGN(256);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(256);
+  __init_end = .;
+
+  __bss_start = .;
+  .bss       :
+  {
+   _sbss = .;
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+   . = ALIGN(4);
+   _ebss = .;
+  }
+  _end = . ;
+  PROVIDE (end = .);
+}