Merge commit 'origin/master'

5 files changed, 497 insertions, 346 deletions

diff --git a/lib_m68k/Makefile b/lib_m68k/Makefile
index 82165f0..03784fd 100644
--- a/lib_m68k/Makefile
+++ b/lib_m68k/Makefile
@@ -27,7 +27,7 @@ LIB	= $(obj)lib$(ARCH).a
 
 SOBJS	=
 
-COBJS	= cache.o traps.o time.o board.o m68k_linux.o
+COBJS	= cache.o traps.o time.o interrupts.o board.o m68k_linux.o
 
 SRCS 	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
diff --git a/lib_m68k/board.c b/lib_m68k/board.c
index 293fd04..43f97c4 100644
--- a/lib_m68k/board.c
+++ b/lib_m68k/board.c
@@ -30,9 +30,7 @@
 #include <malloc.h>
 #include <devices.h>
 
-#ifdef	CONFIG_M5272
-#include <asm/immap_5272.h>
-#endif
+#include <asm/immap.h>
 
 #if defined(CONFIG_CMD_IDE)
 #include <ide.h>
@@ -139,19 +137,19 @@ void *sbrk (ptrdiff_t increment)
 
 char *strmhz(char *buf, long hz)
 {
-    long l, n;
-    long m;
+	long l, n;
+	long m;
 
-    n = hz / 1000000L;
+	n = hz / 1000000L;
 
-    l = sprintf (buf, "%ld", n);
+	l = sprintf (buf, "%ld", n);
 
-    m = (hz % 1000000L) / 1000L;
+	m = (hz % 1000000L) / 1000L;
 
-    if (m != 0)
-	sprintf (buf+l, ".%03ld", m);
+	if (m != 0)
+		sprintf (buf+l, ".%03ld", m);
 
-    return (buf);
+	return (buf);
 }
 
 /*
@@ -169,7 +167,7 @@ char *strmhz(char *buf, long hz)
 typedef int (init_fnc_t) (void);
 
 /************************************************************************
- * Init Utilities							*
+ * Init Utilities
  ************************************************************************
  * Some of this code should be moved into the core functions,
  * but let's get it working (again) first...
@@ -221,6 +219,7 @@ static int init_func_i2c (void)
  */
 
 init_fnc_t *init_sequence[] = {
+	get_clocks,
 	env_init,
 	init_baudrate,
 	serial_init,
@@ -371,6 +370,10 @@ board_init_f (ulong bootflag)
 	 */
 	bd->bi_memstart  = CFG_SDRAM_BASE;	/* start of  DRAM memory      */
 	bd->bi_memsize   = gd->ram_size;	/* size  of  DRAM memory in bytes */
+#ifdef CFG_INIT_RAM_ADDR
+	bd->bi_sramstart = CFG_INIT_RAM_ADDR;	/* start of  SRAM memory	*/
+	bd->bi_sramsize  = CFG_INIT_RAM_END;	/* size  of  SRAM memory	*/
+#endif
 	bd->bi_mbar_base = CFG_MBAR;		/* base of internal registers */
 
 	bd->bi_bootflags = bootflag;		/* boot / reboot flag (for LynxOS)    */
@@ -378,6 +381,14 @@ board_init_f (ulong bootflag)
 	WATCHDOG_RESET ();
 	bd->bi_intfreq = gd->cpu_clk;	/* Internal Freq, in Hz */
 	bd->bi_busfreq = gd->bus_clk;	/* Bus Freq,      in Hz */
+#ifdef CONFIG_PCI
+	bd->bi_pcifreq = gd->pci_clk;		/* PCI Freq in Hz */
+#endif
+#ifdef CONFIG_EXTRA_CLOCK
+	bd->bi_inpfreq = gd->inp_clk;		/* input Freq in Hz */
+	bd->bi_vcofreq = gd->vco_clk;		/* vco Freq in Hz */
+	bd->bi_flbfreq = gd->flb_clk;		/* flexbus Freq in Hz */
+#endif
 	bd->bi_baudrate = gd->baudrate;	/* Console Baudrate     */
 
 #ifdef CFG_EXTBDINFO
@@ -430,6 +441,10 @@ void board_init_r (gd_t *id, ulong dest_addr)
 
 	gd->flags |= GD_FLG_RELOC;	/* tell others: relocation done */
 
+#ifdef CONFIG_SERIAL_MULTI
+	serial_initialize();
+#endif
+
 	debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
 
 	WATCHDOG_RESET ();
@@ -489,7 +504,7 @@ void board_init_r (gd_t *id, ulong dest_addr)
 	/*
 	 * Setup trap handlers
 	 */
-	trap_init (0);
+	trap_init (CFG_SDRAM_BASE);
 
 #if !defined(CFG_NO_FLASH)
 	puts ("FLASH: ");
@@ -562,12 +577,48 @@ void board_init_r (gd_t *id, ulong dest_addr)
 		if (s)
 			s = (*e) ? e + 1 : e;
 	}
+#ifdef CONFIG_HAS_ETH1
+	/* handle the 2nd ethernet address */
+
+	s = getenv ("eth1addr");
+	for (i = 0; i < 6; ++i) {
+		bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
+		if (s)
+			s = (*e) ? e + 1 : e;
+	}
+#endif
+#ifdef CONFIG_HAS_ETH2
+	/* handle the 3rd ethernet address */
+
+	s = getenv ("eth2addr");
+	for (i = 0; i < 6; ++i) {
+		bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
+		if (s)
+			s = (*e) ? e + 1 : e;
+	}
+#endif
+
+#ifdef CONFIG_HAS_ETH3
+	/* handle 4th ethernet address */
+	s = getenv("eth3addr");
+	for (i = 0; i < 6; ++i) {
+		bd->bi_enet3addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
+		if (s)
+			s = (*e) ? e + 1 : e;
+	}
+#endif
 
 	/* IP Address */
 	bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
 
 	WATCHDOG_RESET ();
 
+#if defined(CONFIG_PCI)
+	/*
+	 * Do pci configuration
+	 */
+	pci_init ();
+#endif
 
 	/** leave this here (after malloc(), environment and PCI are working) **/
 	/* Initialize devices */
@@ -640,15 +691,34 @@ void board_init_r (gd_t *id, ulong dest_addr)
 	nand_init();		/* go init the NAND */
 #endif
 
-#if defined(CONFIG_CMD_NET) && defined(FEC_ENET)
+#if defined(CONFIG_CMD_NET)
 	WATCHDOG_RESET();
+#if defined(FEC_ENET)
 	eth_init(bd);
 #endif
+#if defined(CONFIG_NET_MULTI)
+	puts ("Net:   ");
+	eth_initialize (bd);
+#endif
+#endif
 
 #ifdef CONFIG_POST
 	post_run (NULL, POST_RAM | post_bootmode_get(0));
 #endif
 
+#if defined(CONFIG_CMD_PCMCIA) \
+    && !defined(CONFIG_CMD_IDE)
+	WATCHDOG_RESET ();
+	puts ("PCMCIA:");
+	pcmcia_init ();
+#endif
+
+#if defined(CONFIG_CMD_IDE)
+	WATCHDOG_RESET ();
+	puts ("IDE:   ");
+	ide_init ();
+#endif
+
 #ifdef CONFIG_LAST_STAGE_INIT
 	WATCHDOG_RESET ();
 	/*
diff --git a/lib_m68k/interrupts.c b/lib_m68k/interrupts.c
new file mode 100644
index 0000000..1635d6f
--- /dev/null
+++ b/lib_m68k/interrupts.c
@@ -0,0 +1,115 @@
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2007 Freescale Semiconductor Inc
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <asm/processor.h>
+#include <asm/immap.h>
+
+#define	NR_IRQS		(CFG_NUM_IRQS)
+
+/*
+ * Interrupt vector functions.
+ */
+struct interrupt_action {
+	interrupt_handler_t *handler;
+	void *arg;
+};
+
+static struct interrupt_action irq_vecs[NR_IRQS];
+
+static __inline__ unsigned short get_sr (void)
+{
+	unsigned short sr;
+
+	asm volatile ("move.w %%sr,%0":"=r" (sr):);
+
+	return sr;
+}
+
+static __inline__ void set_sr (unsigned short sr)
+{
+	asm volatile ("move.w %0,%%sr"::"r" (sr));
+}
+
+/************************************************************************/
+/*
+ * Install and free an interrupt handler
+ */
+void irq_install_handler (int vec, interrupt_handler_t * handler, void *arg)
+{
+	if ((vec < 0) || (vec > NR_IRQS)) {
+		printf ("irq_install_handler: wrong interrupt vector %d\n",
+			vec);
+		return;
+	}
+
+	irq_vecs[vec].handler = handler;
+	irq_vecs[vec].arg = arg;
+}
+
+void irq_free_handler (int vec)
+{
+	if ((vec < 0) || (vec > NR_IRQS)) {
+		return;
+	}
+
+	irq_vecs[vec].handler = NULL;
+	irq_vecs[vec].arg = NULL;
+}
+
+void enable_interrupts (void)
+{
+	unsigned short sr;
+
+	sr = get_sr ();
+	set_sr (sr & ~0x0700);
+}
+
+int disable_interrupts (void)
+{
+	unsigned short sr;
+
+	sr = get_sr ();
+	set_sr (sr | 0x0700);
+
+	return ((sr & 0x0700) == 0);	/* return TRUE, if interrupts were enabled before */
+}
+
+void int_handler (struct pt_regs *fp)
+{
+	int vec;
+
+	vec = (fp->vector >> 2) & 0xff;
+	if (vec > 0x40)
+		vec -= 0x40;
+
+	if (irq_vecs[vec].handler != NULL) {
+		irq_vecs[vec].handler (irq_vecs[vec].arg);
+	} else {
+		printf ("\nBogus External Interrupt Vector %d\n", vec);
+	}
+}
diff --git a/lib_m68k/m68k_linux.c b/lib_m68k/m68k_linux.c
index 6c194f8..bea9744 100644
--- a/lib_m68k/m68k_linux.c
+++ b/lib_m68k/m68k_linux.c
@@ -25,6 +25,8 @@
 #include <command.h>
 #include <image.h>
 #include <zlib.h>
+#include <bzlib.h>
+#include <environment.h>
 #include <asm/byteorder.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -34,103 +36,190 @@ DECLARE_GLOBAL_DATA_PTR;
 #define LINUX_MAX_ENVS		256
 #define LINUX_MAX_ARGS		256
 
-extern image_header_t header;	/* from cmd_bootm.c */
-
-extern int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
-
-static int linux_argc;
-static char **linux_argv;
-
-static char **linux_env;
-static char *linux_env_p;
-static int linux_env_idx;
+#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
 
-static void linux_params_init (ulong start, char *commandline);
-static void linux_env_set (char *env_name, char *env_val);
+extern image_header_t header;
 
-void do_bootm_linux (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[],
-		     ulong addr, ulong * len_ptr, int verify)
+void do_bootm_linux(cmd_tbl_t * cmdtp, int flag,
+		    int argc, char *argv[],
+		    ulong addr, ulong * len_ptr, int verify)
 {
-	ulong len = 0, checksum;
+	ulong sp;
+	ulong len, checksum;
 	ulong initrd_start, initrd_end;
+	ulong cmd_start, cmd_end;
+	ulong initrd_high;
 	ulong data;
-	void (*theKernel) (int, char **, char **, int *);
+	int initrd_copy_to_ram = 1;
+	char *cmdline;
+	char *s;
+	bd_t *kbd;
+	void (*kernel) (bd_t *, ulong, ulong, ulong, ulong);
 	image_header_t *hdr = &header;
-	char *commandline = getenv ("bootargs");
-	char env_buf[12];
 
-	theKernel =
-		(void (*)(int, char **, char **, int *)) ntohl (hdr->ih_ep);
+	if ((s = getenv("initrd_high")) != NULL) {
+		/* a value of "no" or a similar string will act like 0,
+		 * turning the "load high" feature off. This is intentional.
+		 */
+		initrd_high = simple_strtoul(s, NULL, 16);
+		if (initrd_high == ~0)
+			initrd_copy_to_ram = 0;
+	} else {		/* not set, no restrictions to load high */
+		initrd_high = ~0;
+	}
+
+#ifdef CONFIG_LOGBUFFER
+	kbd = gd->bd;
+	/* Prevent initrd from overwriting logbuffer */
+	if (initrd_high < (kbd->bi_memsize - LOGBUFF_LEN - LOGBUFF_OVERHEAD))
+		initrd_high = kbd->bi_memsize - LOGBUFF_LEN - LOGBUFF_OVERHEAD;
+	debug("## Logbuffer at 0x%08lX ", kbd->bi_memsize - LOGBUFF_LEN);
+#endif
+
+	/*
+	 * Booting a (Linux) kernel image
+	 *
+	 * Allocate space for command line and board info - the
+	 * address should be as high as possible within the reach of
+	 * the kernel (see CFG_BOOTMAPSZ settings), but in unused
+	 * memory, which means far enough below the current stack
+	 * pointer.
+	 */
+	asm("movel %%a7, %%d0\n"
+	    "movel %%d0, %0\n": "=d"(sp): :"%d0");
+
+	debug("## Current stack ends at 0x%08lX ", sp);
+
+	sp -= 2048;		/* just to be sure */
+	if (sp > CFG_BOOTMAPSZ)
+		sp = CFG_BOOTMAPSZ;
+	sp &= ~0xF;
+
+	debug("=> set upper limit to 0x%08lX\n", sp);
+
+	cmdline = (char *)((sp - CFG_BARGSIZE) & ~0xF);
+	kbd = (bd_t *) (((ulong) cmdline - sizeof(bd_t)) & ~0xF);
+
+	if ((s = getenv("bootargs")) == NULL)
+		s = "";
+
+	strcpy(cmdline, s);
+
+	cmd_start = (ulong) & cmdline[0];
+	cmd_end = cmd_start + strlen(cmdline);
+
+	*kbd = *(gd->bd);
+
+#ifdef	DEBUG
+	printf("## cmdline at 0x%08lX ... 0x%08lX\n", cmd_start, cmd_end);
+
+	do_bdinfo(NULL, 0, 0, NULL);
+#endif
+
+	if ((s = getenv("clocks_in_mhz")) != NULL) {
+		/* convert all clock information to MHz */
+		kbd->bi_intfreq /= 1000000L;
+		kbd->bi_busfreq /= 1000000L;
+	}
+
+	kernel =
+	    (void (*)(bd_t *, ulong, ulong, ulong, ulong))ntohl(hdr->ih_ep);
 
 	/*
 	 * Check if there is an initrd image
 	 */
+
 	if (argc >= 3) {
-		show_boot_progress (9);
+		debug("Not skipping initrd\n");
+		SHOW_BOOT_PROGRESS(9);
 
-		addr = simple_strtoul (argv[2], NULL, 16);
+		addr = simple_strtoul(argv[2], NULL, 16);
 
-		printf ("## Loading Ramdisk Image at %08lx ...\n", addr);
+		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));
+		memmove(&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);
+		if (ntohl(hdr->ih_magic) != IH_MAGIC) {
+			puts("Bad Magic Number\n");
+			SHOW_BOOT_PROGRESS(-10);
+			do_reset(cmdtp, flag, argc, argv);
 		}
 
 		data = (ulong) & header;
-		len = sizeof (image_header_t);
+		len = sizeof(image_header_t);
 
-		checksum = ntohl (hdr->ih_hcrc);
+		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);
+		if (crc32(0, (uchar *) data, len) != checksum) {
+			puts("Bad Header Checksum\n");
+			SHOW_BOOT_PROGRESS(-11);
+			do_reset(cmdtp, flag, argc, argv);
 		}
 
-		show_boot_progress (10);
+		SHOW_BOOT_PROGRESS(10);
 
-		print_image_hdr (hdr);
+		print_image_hdr(hdr);
 
-		data = addr + sizeof (image_header_t);
-		len = ntohl (hdr->ih_size);
+		data = addr + sizeof(image_header_t);
+		len = ntohl(hdr->ih_size);
 
 		if (verify) {
 			ulong csum = 0;
+#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
+			ulong cdata = data, edata = cdata + len;
+#endif				/* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
 
-			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);
+			puts("   Verifying Checksum ... ");
+
+#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
+
+			while (cdata < edata) {
+				ulong chunk = edata - cdata;
+
+				if (chunk > CHUNKSZ)
+					chunk = CHUNKSZ;
+				csum = crc32(csum, (uchar *) cdata, chunk);
+				cdata += chunk;
+
+				WATCHDOG_RESET();
 			}
-			printf ("OK\n");
+#else				/* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
+			csum = crc32(0, (uchar *) data, len);
+#endif				/* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
+
+			if (csum != ntohl(hdr->ih_dcrc)) {
+				puts("Bad Data CRC\n");
+				SHOW_BOOT_PROGRESS(-12);
+				do_reset(cmdtp, flag, argc, argv);
+			}
+			puts("OK\n");
 		}
 
-		show_boot_progress (11);
+		SHOW_BOOT_PROGRESS(11);
 
 		if ((hdr->ih_os != IH_OS_LINUX) ||
 		    (hdr->ih_arch != IH_CPU_M68K) ||
 		    (hdr->ih_type != IH_TYPE_RAMDISK)) {
-			printf ("No Linux M68K Ramdisk Image\n");
-			show_boot_progress (-13);
-			do_reset (cmdtp, flag, argc, argv);
+			puts("No Linux ColdFire 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;
+		u_long tail = ntohl(len_ptr[0]) % 4;
 		int i;
 
-		show_boot_progress (13);
+		SHOW_BOOT_PROGRESS(13);
 
 		/* skip kernel length and terminator */
 		data = (ulong) (&len_ptr[2]);
@@ -138,130 +227,111 @@ void do_bootm_linux (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[],
 		for (i = 1; len_ptr[i]; ++i)
 			data += 4;
 		/* add kernel length, and align */
-		data += ntohl (len_ptr[0]);
+		data += ntohl(len_ptr[0]);
 		if (tail) {
 			data += 4 - tail;
 		}
 
-		len = ntohl (len_ptr[1]);
+		len = ntohl(len_ptr[1]);
 
 	} else {
 		/*
 		 * no initrd image
 		 */
-		show_boot_progress (14);
+		SHOW_BOOT_PROGRESS(14);
 
-		data = 0;
+		len = data = 0;
 	}
 
-#ifdef	DEBUG
 	if (!data) {
-		printf ("No initrd\n");
+		debug("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 (!initrd_copy_to_ram) {	/* zero-copy ramdisk support */
+			initrd_start = data;
+			initrd_end = initrd_start + len;
+		} else {
+			initrd_start = (ulong) kbd - len;
+			initrd_start &= ~(4096 - 1);	/* align on page */
+
+			if (initrd_high) {
+				ulong nsp;
+
+				/*
+				 * the inital ramdisk does not need to be within
+				 * CFG_BOOTMAPSZ as it is not accessed until after
+				 * the mm system is initialised.
+				 *
+				 * do the stack bottom calculation again and see if
+				 * the initrd will fit just below the monitor stack
+				 * bottom without overwriting the area allocated
+				 * above for command line args and board info.
+				 */
+				asm("movel %%a7, %%d0\n"
+				    "movel %%d0, %0\n": "=d"(nsp): :"%d0");
+
+				nsp -= 2048;	/* just to be sure */
+				nsp &= ~0xF;
+
+				if (nsp > initrd_high)	/* limit as specified */
+					nsp = initrd_high;
+
+					nsp -= len;
+				nsp &= ~(4096 - 1);	/* align on page */
+
+				if (nsp >= sp)
+					initrd_start = nsp;
 			}
-		}
 
-		if (next == NULL) {
-			next = line + strlen (line);
+			SHOW_BOOT_PROGRESS(12);
+
+			debug
+			    ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
+			     data, data + len - 1, len, len);
+
+			initrd_end = initrd_start + len;
+			printf("   Loading Ramdisk to %08lx, end %08lx ... ",
+			       initrd_start, initrd_end);
+#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
+			{
+				size_t l = len;
+				void *to = (void *)initrd_start;
+				void *from = (void *)data;
+
+				while (l > 0) {
+					size_t tail =
+					    (l > CHUNKSZ) ? CHUNKSZ : l;
+					WATCHDOG_RESET();
+					memmove(to, from, tail);
+					to += tail;
+					from += tail;
+					l -= tail;
+				}
+			}
+#else				/* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
+			memmove((void *)initrd_start, (void *)data, len);
+#endif				/* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
+			puts("OK\n");
 		}
-
-		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;
+	} else {
+		initrd_start = 0;
+		initrd_end = 0;
 	}
 
-	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);
+	debug("## Transferring control to Linux (at address %08lx) ...\n",
+	      (ulong) kernel);
 
-		strcpy (linux_env_p, "=");
-		linux_env_p += 1;
+	SHOW_BOOT_PROGRESS(15);
 
-		strcpy (linux_env_p, env_val);
-		linux_env_p += strlen (env_val);
-
-		linux_env_p++;
-		linux_env[++linux_env_idx] = 0;
-	}
+	/*
+	 * Linux Kernel Parameters (passing board info data):
+	 *   r3: ptr to board info data
+	 *   r4: initrd_start or 0 if no initrd
+	 *   r5: initrd_end - unused if r4 is 0
+	 *   r6: Start of command line string
+	 *   r7: End   of command line string
+	 */
+	(*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
+	/* does not return */
 }
diff --git a/lib_m68k/time.c b/lib_m68k/time.c
index 12e38f0..28d371d 100644
--- a/lib_m68k/time.c
+++ b/lib_m68k/time.c
@@ -25,41 +25,26 @@
 
 #include <common.h>
 
-#include <asm/mcftimer.h>
+#include <asm/timer.h>
+#include <asm/immap.h>
 
-#ifdef	CONFIG_M5271
-#include <asm/m5271.h>
-#include <asm/immap_5271.h>
-#endif
+DECLARE_GLOBAL_DATA_PTR;
 
-#ifdef	CONFIG_M5272
-#include <asm/m5272.h>
-#include <asm/immap_5272.h>
-#endif
+static ulong timestamp;
 
-#ifdef	CONFIG_M5282
-#include <asm/m5282.h>
+#if defined(CONFIG_MCFTMR)
+#ifndef CFG_UDELAY_BASE
+#	error	"uDelay base not defined!"
 #endif
 
-#ifdef	CONFIG_M5249
-#include <asm/m5249.h>
-#include <asm/immap_5249.h>
+#if !defined(CFG_TMR_BASE) || !defined(CFG_INTR_BASE) || !defined(CFG_TMRINTR_NO) || !defined(CFG_TMRINTR_MASK)
+#	error	"TMR_BASE, INTR_BASE, TMRINTR_NO or TMRINTR_MASk not defined!"
 #endif
+extern void dtimer_intr_setup(void);
 
-
-static ulong timestamp;
-#if defined(CONFIG_M5282) || defined(CONFIG_M5271)
-static unsigned short lastinc;
-#endif
-
-
-#if defined(CONFIG_M5272)
-/*
- * We use timer 3 which is running with a period of 1 us
- */
 void udelay(unsigned long usec)
 {
-	volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE3);
+	volatile dtmr_t *timerp = (dtmr_t *) (CFG_UDELAY_BASE);
 	uint start, now, tmp;
 
 	while (usec > 0) {
@@ -70,77 +55,84 @@ void udelay(unsigned long usec)
 		usec = usec - tmp;
 
 		/* Set up TIMER 3 as timebase clock */
-		timerp->timer_tmr = MCFTIMER_TMR_DISABLE;
-		timerp->timer_tcn = 0;
+		timerp->tmr = DTIM_DTMR_RST_RST;
+		timerp->tcn = 0;
 		/* set period to 1 us */
-		timerp->timer_tmr = (((CFG_CLK / 1000000) - 1)	<< 8) | MCFTIMER_TMR_CLK1 |
-				     MCFTIMER_TMR_FREERUN | MCFTIMER_TMR_ENABLE;
+		timerp->tmr =
+		    CFG_TIMER_PRESCALER | DTIM_DTMR_CLK_DIV1 | DTIM_DTMR_FRR |
+		    DTIM_DTMR_RST_EN;
 
-		start = now = timerp->timer_tcn;
+		start = now = timerp->tcn;
 		while (now < start + tmp)
-			now = timerp->timer_tcn;
+			now = timerp->tcn;
 	}
 }
 
-void mcf_timer_interrupt (void * not_used){
-	volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE4);
-	volatile intctrl_t *intp = (intctrl_t *) (CFG_MBAR + MCFSIM_ICR1);
+void dtimer_interrupt(void *not_used)
+{
+	volatile dtmr_t *timerp = (dtmr_t *) (CFG_TMR_BASE);
 
-	/* check for timer 4 interrupts */
-	if ((intp->int_isr & 0x01000000) != 0) {
+	/* check for timer interrupt asserted */
+	if ((CFG_TMRPND_REG & CFG_TMRINTR_MASK) == CFG_TMRINTR_PEND) {
+		timerp->ter = (DTIM_DTER_CAP | DTIM_DTER_REF);
+		timestamp++;
 		return;
 	}
-
-	/* reset timer */
-	timerp->timer_ter = MCFTIMER_TER_CAP | MCFTIMER_TER_REF;
-	timestamp ++;
 }
 
-void timer_init (void) {
-	volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE4);
-	volatile intctrl_t *intp = (intctrl_t *) (CFG_MBAR + MCFSIM_ICR1);
+void timer_init(void)
+{
+	volatile dtmr_t *timerp = (dtmr_t *) (CFG_TMR_BASE);
 
 	timestamp = 0;
 
+	timerp->tcn = 0;
+	timerp->trr = 0;
+
 	/* Set up TIMER 4 as clock */
-	timerp->timer_tmr = MCFTIMER_TMR_DISABLE;
+	timerp->tmr = DTIM_DTMR_RST_RST;
+
+	/* initialize and enable timer interrupt */
+	irq_install_handler(CFG_TMRINTR_NO, dtimer_interrupt, 0);
 
-	/* initialize and enable timer 4 interrupt */
-	irq_install_handler (72, mcf_timer_interrupt, 0);
-	intp->int_icr1 |= 0x0000000d;
+	timerp->tcn = 0;
+	timerp->trr = 1000;	/* Interrupt every ms */
+
+	dtimer_intr_setup();
 
-	timerp->timer_tcn = 0;
-	timerp->timer_trr = 1000;	/* Interrupt every ms */
 	/* set a period of 1us, set timer mode to restart and enable timer and interrupt */
-	timerp->timer_tmr = (((CFG_CLK / 1000000) - 1)	<< 8) | MCFTIMER_TMR_CLK1 |
-		MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENORI | MCFTIMER_TMR_ENABLE;
+	timerp->tmr = CFG_TIMER_PRESCALER | DTIM_DTMR_CLK_DIV1 |
+	    DTIM_DTMR_FRR | DTIM_DTMR_ORRI | DTIM_DTMR_RST_EN;
 }
 
-void reset_timer (void)
+void reset_timer(void)
 {
 	timestamp = 0;
 }
 
-ulong get_timer (ulong base)
+ulong get_timer(ulong base)
 {
 	return (timestamp - base);
 }
 
-void set_timer (ulong t)
+void set_timer(ulong t)
 {
 	timestamp = t;
 }
+#endif				/* CONFIG_MCFTMR */
+
+#if defined(CONFIG_MCFPIT)
+#if !defined(CFG_PIT_BASE)
+#	error	"CFG_PIT_BASE not defined!"
 #endif
 
-#if defined(CONFIG_M5282) || defined(CONFIG_M5271)
+static unsigned short lastinc;
 
 void udelay(unsigned long usec)
 {
-	volatile unsigned short *timerp;
+	volatile pit_t *timerp = (pit_t *) (CFG_UDELAY_BASE);
 	uint tmp;
 
-	timerp = (volatile unsigned short *) (CFG_MBAR + MCFTIMER_BASE3);
-
 	while (usec > 0) {
 		if (usec > 65000)
 			tmp = 65000;
@@ -149,55 +141,41 @@ void udelay(unsigned long usec)
 		usec = usec - tmp;
 
 		/* Set up TIMER 3 as timebase clock */
-		timerp[MCFTIMER_PCSR] = MCFTIMER_PCSR_OVW;
-		timerp[MCFTIMER_PMR] = 0;
+		timerp->pcsr = PIT_PCSR_OVW;
+		timerp->pmr = 0;
 		/* set period to 1 us */
-		timerp[MCFTIMER_PCSR] =
-#ifdef CONFIG_M5271
-			(6 << 8) | MCFTIMER_PCSR_EN | MCFTIMER_PCSR_OVW;
-#else /* !CONFIG_M5271 */
-			(5 << 8) | MCFTIMER_PCSR_EN | MCFTIMER_PCSR_OVW;
-#endif /* CONFIG_M5271 */
-
-		timerp[MCFTIMER_PMR] = tmp;
-		while (timerp[MCFTIMER_PCNTR] > 0);
+		timerp->pcsr |= PIT_PCSR_PRE(CFG_PIT_PRESCALE) | PIT_PCSR_EN;
+
+		timerp->pmr = tmp;
+		while (timerp->pcntr > 0) ;
 	}
 }
 
-void timer_init (void)
+void timer_init(void)
 {
-	volatile unsigned short *timerp;
-
-	timerp = (volatile unsigned short *) (CFG_MBAR + MCFTIMER_BASE4);
+	volatile pit_t *timerp = (pit_t *) (CFG_PIT_BASE);
 	timestamp = 0;
 
 	/* Set up TIMER 4 as poll clock */
-	timerp[MCFTIMER_PCSR] = MCFTIMER_PCSR_OVW;
-	timerp[MCFTIMER_PMR] = lastinc = 0;
-	timerp[MCFTIMER_PCSR] =
-#ifdef CONFIG_M5271
-		(6 << 8) | MCFTIMER_PCSR_EN | MCFTIMER_PCSR_OVW;
-#else /* !CONFIG_M5271 */
-		(5 << 8) | MCFTIMER_PCSR_EN | MCFTIMER_PCSR_OVW;
-#endif /* CONFIG_M5271 */
+	timerp->pcsr = PIT_PCSR_OVW;
+	timerp->pmr = lastinc = 0;
+	timerp->pcsr |= PIT_PCSR_PRE(CFG_PIT_PRESCALE) | PIT_PCSR_EN;
 }
 
-void set_timer (ulong t)
+void set_timer(ulong t)
 {
-	volatile unsigned short *timerp;
+	volatile pit_t *timerp = (pit_t *) (CFG_PIT_BASE);
 
-	timerp = (volatile unsigned short *) (CFG_MBAR + MCFTIMER_BASE4);
 	timestamp = 0;
-	timerp[MCFTIMER_PMR] = lastinc = 0;
+	timerp->pmr = lastinc = 0;
 }
 
-ulong get_timer (ulong base)
+ulong get_timer(ulong base)
 {
 	unsigned short now, diff;
-	volatile unsigned short *timerp;
+	volatile pit_t *timerp = (pit_t *) (CFG_PIT_BASE);
 
-	timerp = (volatile unsigned short *) (CFG_MBAR + MCFTIMER_BASE4);
-	now = timerp[MCFTIMER_PCNTR];
+	now = timerp->pcntr;
 	diff = -(now - lastinc);
 
 	timestamp += diff;
@@ -205,94 +183,12 @@ ulong get_timer (ulong base)
 	return timestamp - base;
 }
 
-void wait_ticks (unsigned long ticks)
+void wait_ticks(unsigned long ticks)
 {
-	set_timer (0);
-	while (get_timer (0) < ticks);
+	set_timer(0);
+	while (get_timer(0) < ticks) ;
 }
-#endif
-
-
-#if defined(CONFIG_M5249)
-/*
- * We use timer 1 which is running with a period of 1 us
- */
-void udelay(unsigned long usec)
-{
-	volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE1);
-	uint start, now, tmp;
-
-	while (usec > 0) {
-		if (usec > 65000)
-			tmp = 65000;
-		else
-			tmp = usec;
-		usec = usec - tmp;
-
-		/* Set up TIMER 1 as timebase clock */
-		timerp->timer_tmr = MCFTIMER_TMR_DISABLE;
-		timerp->timer_tcn = 0;
-		/* set period to 1 us */
-		/* on m5249 the system clock is (cpu_clk / 2) -> divide by 2000000 */
-		timerp->timer_tmr = (((CFG_CLK / 2000000) - 1)	<< 8) | MCFTIMER_TMR_CLK1 |
-				     MCFTIMER_TMR_FREERUN | MCFTIMER_TMR_ENABLE;
-
-		start = now = timerp->timer_tcn;
-		while (now < start + tmp)
-			now = timerp->timer_tcn;
-	}
-}
-
-void mcf_timer_interrupt (void * not_used){
-	volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE2);
-
-	/* check for timer 2 interrupts */
-	if ((mbar_readLong(MCFSIM_IPR) & 0x00000400) == 0) {
-		return;
-	}
-
-	/* reset timer */
-	timerp->timer_ter = MCFTIMER_TER_CAP | MCFTIMER_TER_REF;
-	timestamp ++;
-}
-
-void timer_init (void) {
-	volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE2);
-
-	timestamp = 0;
-
-	/* Set up TIMER 2 as clock */
-	timerp->timer_tmr = MCFTIMER_TMR_DISABLE;
-
-	/* initialize and enable timer 2 interrupt */
-	irq_install_handler (31, mcf_timer_interrupt, 0);
-	mbar_writeLong(MCFSIM_IMR, mbar_readLong(MCFSIM_IMR) & ~0x00000400);
-	mbar_writeByte(MCFSIM_TIMER2ICR, MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3);
-
-	timerp->timer_tcn = 0;
-	timerp->timer_trr = 1000;	/* Interrupt every ms */
-	/* set a period of 1us, set timer mode to restart and enable timer and interrupt */
-	/* on m5249 the system clock is (cpu_clk / 2) -> divide by 2000000 */
-	timerp->timer_tmr = (((CFG_CLK / 2000000) - 1)	<< 8) | MCFTIMER_TMR_CLK1 |
-		MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENORI | MCFTIMER_TMR_ENABLE;
-}
-
-void reset_timer (void)
-{
-	timestamp = 0;
-}
-
-ulong get_timer (ulong base)
-{
-	return (timestamp - base);
-}
-
-void set_timer (ulong t)
-{
-	timestamp = t;
-}
-#endif
-
+#endif				/* CONFIG_MCFPIT */
 
 /*
  * This function is derived from PowerPC code (read timebase as long long).
@@ -307,7 +203,7 @@ unsigned long long get_ticks(void)
  * This function is derived from PowerPC code (timebase clock frequency).
  * On M68K it returns the number of timer ticks per second.
  */
-ulong get_tbclk (void)
+ulong get_tbclk(void)
 {
 	ulong tbclk;
 	tbclk = CFG_HZ;