Initial revision

4 files changed, 927 insertions, 0 deletions

diff --git a/board/esd/ar405/ar405.c b/board/esd/ar405/ar405.c
new file mode 100644
index 0000000000..f23b822665
--- /dev/null
+++ b/board/esd/ar405/ar405.c
@@ -0,0 +1,187 @@
+/*
+ * (C) Copyright 2001
+ * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.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 "ar405.h"
+#include <asm/processor.h>
+#include <command.h>
+#include <cmd_boot.h>
+
+
+/* ------------------------------------------------------------------------- */
+
+#if 0
+#define FPGA_DEBUG
+#endif
+
+/* fpga configuration data - generated by bin2cc */
+const unsigned char fpgadata[] = {
+#include "fpgadata.c"
+};
+
+/*
+ * include common fpga code (for esd boards)
+ */
+#include "../common/fpga.c"
+
+
+int board_pre_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	int index, len, i;
+	int status;
+
+#ifdef FPGA_DEBUG
+	/* set up serial port with default baudrate */
+	(void) get_clocks ();
+	gd->baudrate = CONFIG_BAUDRATE;
+	serial_init ();
+	console_init_f ();
+#endif
+
+	/*
+	 * Boot onboard FPGA
+	 */
+	status = fpga_boot ((unsigned char *) fpgadata, sizeof (fpgadata));
+	if (status != 0) {
+		/* booting FPGA failed */
+#ifndef FPGA_DEBUG
+		/* set up serial port with default baudrate */
+		(void) get_clocks ();
+		gd->baudrate = CONFIG_BAUDRATE;
+		serial_init ();
+		console_init_f ();
+#endif
+		printf ("\nFPGA: Booting failed ");
+		switch (status) {
+		case ERROR_FPGA_PRG_INIT_LOW:
+			printf ("(Timeout: INIT not low after asserting PROGRAM*)\n ");
+			break;
+		case ERROR_FPGA_PRG_INIT_HIGH:
+			printf ("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
+			break;
+		case ERROR_FPGA_PRG_DONE:
+			printf ("(Timeout: DONE not high after programming FPGA)\n ");
+			break;
+		}
+
+		/* display infos on fpgaimage */
+		index = 15;
+		for (i = 0; i < 4; i++) {
+			len = fpgadata[index];
+			printf ("FPGA: %s\n", &(fpgadata[index + 1]));
+			index += len + 3;
+		}
+		putc ('\n');
+		/* delayed reboot */
+		for (i = 20; i > 0; i--) {
+			printf ("Rebooting in %2d seconds \r", i);
+			for (index = 0; index < 1000; index++)
+				udelay (1000);
+		}
+		putc ('\n');
+		do_reset (NULL, 0, 0, NULL);
+	}
+
+	/*
+	 * IRQ 0-15  405GP internally generated; active high; level sensitive
+	 * IRQ 16    405GP internally generated; active low; level sensitive
+	 * IRQ 17-24 RESERVED
+	 * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
+	 * IRQ 26 (EXT IRQ 1) CAN1; active low; level sensitive
+	 * IRQ 27 (EXT IRQ 2) PCI SLOT 0; active low; level sensitive
+	 * IRQ 28 (EXT IRQ 3) PCI SLOT 1; active low; level sensitive
+	 * IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
+	 * IRQ 30 (EXT IRQ 5) PCI SLOT 3; active low; level sensitive
+	 * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
+	 */
+	mtdcr (uicsr, 0xFFFFFFFF);	/* clear all ints */
+	mtdcr (uicer, 0x00000000);	/* disable all ints */
+	mtdcr (uiccr, 0x00000000);	/* set all to be non-critical */
+	mtdcr (uicpr, 0xFFFFFF81);	/* set int polarities */
+	mtdcr (uictr, 0x10000000);	/* set int trigger levels */
+	mtdcr (uicvcr, 0x00000001);	/* set vect base=0,INT0 highest priority */
+	mtdcr (uicsr, 0xFFFFFFFF);	/* clear all ints */
+
+	*(ushort *) 0xf03000ec = 0x0fff;	/* enable all interrupts in fpga */
+
+	return 0;
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check Board Identity:
+ */
+
+int checkboard (void)
+{
+	int index;
+	int len;
+	unsigned char str[64];
+	int i = getenv_r ("serial#", str, sizeof (str));
+
+	puts ("Board: ");
+
+	if (!i || strncmp (str, "AR405", 5)) {
+		puts ("### No HW ID - assuming AR405\n");
+		return (0);
+	}
+
+	puts (str);
+
+	puts ("\nFPGA:  ");
+
+	/* display infos on fpgaimage */
+	index = 15;
+	for (i = 0; i < 4; i++) {
+		len = fpgadata[index];
+		printf ("%s ", &(fpgadata[index + 1]));
+		index += len + 3;
+	}
+
+	putc ('\n');
+
+	return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+long int initdram (int board_type)
+{
+	return (16 * 1024 * 1024);
+}
+
+/* ------------------------------------------------------------------------- */
+
+int testdram (void)
+{
+	/* TODO: XXX XXX XXX */
+	printf ("test: 16 MB - ok\n");
+
+	return (0);
+}
+
+/* ------------------------------------------------------------------------- */
diff --git a/board/esd/canbt/canbt.c b/board/esd/canbt/canbt.c
new file mode 100644
index 0000000000..bc7f0c70f0
--- /dev/null
+++ b/board/esd/canbt/canbt.c
@@ -0,0 +1,199 @@
+/*
+ * (C) Copyright 2001
+ * Matthias Fuchs, esd gmbh germany, matthias.fuchs@esd-electronics.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 "canbt.h"
+#include <asm/processor.h>
+#include <command.h>
+#include <cmd_boot.h>
+
+/* ------------------------------------------------------------------------- */
+
+#if 0
+#define FPGA_DEBUG
+#endif
+
+/* fpga configuration data */
+const unsigned char fpgadata[] = {
+#include "fpgadata.c"
+};
+
+/*
+ * include common fpga code (for esd boards)
+ */
+#include "../common/fpga.c"
+
+
+int board_pre_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	unsigned long cntrl0Reg;
+	int index, len, i;
+	int status;
+
+	/*
+	 * Setup GPIO pins
+	 */
+	cntrl0Reg = mfdcr (cntrl0) & 0xf0001fff;
+	cntrl0Reg |= 0x0070f000;
+	mtdcr (cntrl0, cntrl0Reg);
+
+#ifdef FPGA_DEBUG
+	/* set up serial port with default baudrate */
+	(void) get_clocks ();
+	gd->baudrate = CONFIG_BAUDRATE;
+	serial_init ();
+	console_init_f ();
+#endif
+
+	/*
+	 * Boot onboard FPGA
+	 */
+	status = fpga_boot ((unsigned char *) fpgadata, sizeof (fpgadata));
+	if (status != 0) {
+		/* booting FPGA failed */
+#ifndef FPGA_DEBUG
+		/* set up serial port with default baudrate */
+		(void) get_clocks ();
+		gd->baudrate = CONFIG_BAUDRATE;
+		serial_init ();
+		console_init_f ();
+#endif
+		printf ("\nFPGA: Booting failed ");
+		switch (status) {
+		case ERROR_FPGA_PRG_INIT_LOW:
+			printf ("(Timeout: INIT not low after asserting PROGRAM*)\n ");
+			break;
+		case ERROR_FPGA_PRG_INIT_HIGH:
+			printf ("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
+			break;
+		case ERROR_FPGA_PRG_DONE:
+			printf ("(Timeout: DONE not high after programming FPGA)\n ");
+			break;
+		}
+
+		/* display infos on fpgaimage */
+		index = 15;
+		for (i = 0; i < 4; i++) {
+			len = fpgadata[index];
+			printf ("FPGA: %s\n", &(fpgadata[index + 1]));
+			index += len + 3;
+		}
+		putc ('\n');
+		/* delayed reboot */
+		for (i = 20; i > 0; i--) {
+			printf ("Rebooting in %2d seconds \r", i);
+			for (index = 0; index < 1000; index++)
+				udelay (1000);
+		}
+		putc ('\n');
+		do_reset (NULL, 0, 0, NULL);
+	}
+
+	/*
+	 * Setup port pins for normal operation
+	 */
+	out32 (IBM405GP_GPIO0_ODR, 0x00000000);	/* no open drain pins */
+	out32 (IBM405GP_GPIO0_TCR, 0x07038100);	/* setup for output */
+	out32 (IBM405GP_GPIO0_OR, 0x07030100);	/* set output pins to high (default) */
+
+	/*
+	 * IRQ 0-15  405GP internally generated; active high; level sensitive
+	 * IRQ 16    405GP internally generated; active low; level sensitive
+	 * IRQ 17-24 RESERVED
+	 * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
+	 * IRQ 26 (EXT IRQ 1) CAN1; active low; level sensitive
+	 * IRQ 27 (EXT IRQ 2) PCI SLOT 0; active low; level sensitive
+	 * IRQ 28 (EXT IRQ 3) PCI SLOT 1; active low; level sensitive
+	 * IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
+	 * IRQ 30 (EXT IRQ 5) PCI SLOT 3; active low; level sensitive
+	 * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
+	 */
+	mtdcr (uicsr, 0xFFFFFFFF);	/* clear all ints */
+	mtdcr (uicer, 0x00000000);	/* disable all ints */
+	mtdcr (uiccr, 0x00000000);	/* set all to be non-critical */
+	mtdcr (uicpr, 0xFFFFFF81);	/* set int polarities */
+	mtdcr (uictr, 0x10000000);	/* set int trigger levels */
+	mtdcr (uicvcr, 0x00000001);	/* set vect base=0,INT0 highest priority */
+	mtdcr (uicsr, 0xFFFFFFFF);	/* clear all ints */
+
+	return 0;
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check Board Identity:
+ */
+
+int checkboard (void)
+{
+	int index;
+	int len;
+	unsigned char str[64];
+	int i = getenv_r ("serial#", str, sizeof (str));
+
+	puts ("Board: ");
+
+	if (!i || strncmp (str, "CANBT", 5)) {
+		puts ("### No HW ID - assuming CANBT\n");
+		return (0);
+	}
+
+	puts (str);
+
+	puts ("\nFPGA:  ");
+
+	/* display infos on fpgaimage */
+	index = 15;
+	for (i = 0; i < 4; i++) {
+		len = fpgadata[index];
+		printf ("%s ", &(fpgadata[index + 1]));
+		index += len + 3;
+	}
+
+	putc ('\n');
+
+	return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+long int initdram (int board_type)
+{
+	return (16 * 1024 * 1024);
+}
+
+/* ------------------------------------------------------------------------- */
+
+int testdram (void)
+{
+	/* TODO: XXX XXX XXX */
+	printf ("test: 16 MB - ok\n");
+
+	return (0);
+}
+
+/* ------------------------------------------------------------------------- */
diff --git a/board/esd/du405/du405.c b/board/esd/du405/du405.c
new file mode 100644
index 0000000000..184cda8236
--- /dev/null
+++ b/board/esd/du405/du405.c
@@ -0,0 +1,200 @@
+/*
+ * (C) Copyright 2000, 2001
+ * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.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 "du405.h"
+#include <asm/processor.h>
+#include <ppc4xx.h>
+#include <405gp_i2c.h>
+#include <command.h>
+#include <cmd_boot.h>
+
+/* ------------------------------------------------------------------------- */
+
+#if 0
+#define FPGA_DEBUG
+#endif
+
+#if 0
+#define FPGA_DEBUG2
+#endif
+
+/* fpga configuration data - generated by bin2cc */
+const unsigned char fpgadata[] = {
+#include "fpgadata.c"
+};
+
+/*
+ * include common fpga code (for esd boards)
+ */
+#include "../common/fpga.c"
+
+
+int board_pre_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	int index, len, i;
+	int status;
+
+#ifdef FPGA_DEBUG
+	/* set up serial port with default baudrate */
+	(void) get_clocks ();
+	gd->baudrate = CONFIG_BAUDRATE;
+	serial_init ();
+	console_init_f ();
+#endif
+
+	/*
+	 * Boot onboard FPGA
+	 */
+	status = fpga_boot ((unsigned char *) fpgadata, sizeof (fpgadata));
+	if (status != 0) {
+		/* booting FPGA failed */
+#ifndef FPGA_DEBUG
+		/* set up serial port with default baudrate */
+		(void) get_clocks ();
+		gd->baudrate = CONFIG_BAUDRATE;
+		serial_init ();
+		console_init_f ();
+#endif
+		printf ("\nFPGA: Booting failed ");
+		switch (status) {
+		case ERROR_FPGA_PRG_INIT_LOW:
+			printf ("(Timeout: INIT not low after asserting PROGRAM*)\n ");
+			break;
+		case ERROR_FPGA_PRG_INIT_HIGH:
+			printf ("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
+			break;
+		case ERROR_FPGA_PRG_DONE:
+			printf ("(Timeout: DONE not high after programming FPGA)\n ");
+			break;
+		}
+
+		/* display infos on fpgaimage */
+		index = 15;
+		for (i = 0; i < 4; i++) {
+			len = fpgadata[index];
+			printf ("FPGA: %s\n", &(fpgadata[index + 1]));
+			index += len + 3;
+		}
+		putc ('\n');
+		/* delayed reboot */
+		for (i = 20; i > 0; i--) {
+			printf ("Rebooting in %2d seconds \r", i);
+			for (index = 0; index < 1000; index++)
+				udelay (1000);
+		}
+		putc ('\n');
+		do_reset (NULL, 0, 0, NULL);
+	}
+
+	/*
+	 * IRQ 0-15  405GP internally generated; active high; level sensitive
+	 * IRQ 16    405GP internally generated; active low; level sensitive
+	 * IRQ 17-24 RESERVED
+	 * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
+	 * IRQ 26 (EXT IRQ 1) DUART_A; active high; level sensitive
+	 * IRQ 27 (EXT IRQ 2) DUART_B; active high; level sensitive
+	 * IRQ 28 (EXT IRQ 3) unused; active low; level sensitive
+	 * IRQ 29 (EXT IRQ 4) unused; active low; level sensitive
+	 * IRQ 30 (EXT IRQ 5) unused; active low; level sensitive
+	 * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
+	 */
+	mtdcr (uicsr, 0xFFFFFFFF);	/* clear all ints */
+	mtdcr (uicer, 0x00000000);	/* disable all ints */
+	mtdcr (uiccr, 0x00000000);	/* set all to be non-critical */
+	mtdcr (uicpr, 0xFFFFFFB1);	/* set int polarities */
+	mtdcr (uictr, 0x10000000);	/* set int trigger levels */
+	mtdcr (uicvcr, 0x00000001);	/* set vect base=0,INT0 highest priority */
+	mtdcr (uicsr, 0xFFFFFFFF);	/* clear all ints */
+
+	/*
+	 * EBC Configuration Register: set ready timeout to 100 us
+	 */
+	mtebc (epcr, 0xb8400000);
+
+	return 0;
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check Board Identity:
+ */
+
+int checkboard (void)
+{
+	int index;
+	int len;
+	unsigned char str[64];
+	int i = getenv_r ("serial#", str, sizeof (str));
+
+	puts ("Board: ");
+
+	if (i == -1) {
+		puts ("### No HW ID - assuming DU405");
+	} else {
+		puts (str);
+	}
+
+	puts ("\nFPGA:  ");
+
+	/* display infos on fpgaimage */
+	index = 15;
+	for (i = 0; i < 4; i++) {
+		len = fpgadata[index];
+		printf ("%s ", &(fpgadata[index + 1]));
+		index += len + 3;
+	}
+
+	putc ('\n');
+
+	/*
+	 * Reset external DUART via FPGA
+	 */
+	*(volatile unsigned char *) FPGA_MODE_REG = 0xff;	/* reset high active */
+	*(volatile unsigned char *) FPGA_MODE_REG = 0x00;	/* low again */
+
+	return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+long int initdram (int board_type)
+{
+	return (16 * 1024 * 1024);
+}
+
+/* ------------------------------------------------------------------------- */
+
+int testdram (void)
+{
+	/* TODO: XXX XXX XXX */
+	printf ("test: 16 MB - ok\n");
+
+	return (0);
+}
+
+/* ------------------------------------------------------------------------- */
diff --git a/lib_generic/vsprintf.c b/lib_generic/vsprintf.c
new file mode 100644
index 0000000000..d7a7661576
--- /dev/null
+++ b/lib_generic/vsprintf.c
@@ -0,0 +1,341 @@
+/*
+ *  linux/lib/vsprintf.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+/* vsprintf.c -- Lars Wirzenius & Linus Torvalds. */
+/*
+ * Wirzenius wrote this portably, Torvalds fucked it up :-)
+ */
+
+#include <stdarg.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+
+#include <common.h>
+#if !defined (CONFIG_PANIC_HANG)
+#include <command.h>
+#include <cmd_boot.h>		/* for do_reset() prototype */
+#endif
+
+unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base)
+{
+	unsigned long result = 0,value;
+
+	if (*cp == '0') {
+		cp++;
+		if ((*cp == 'x') && isxdigit(cp[1])) {
+			base = 16;
+			cp++;
+		}
+		if (!base) {
+			base = 8;
+		}
+	}
+	if (!base) {
+		base = 10;
+	}
+	while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp-'0' : (islower(*cp)
+	    ? toupper(*cp) : *cp)-'A'+10) < base) {
+		result = result*base + value;
+		cp++;
+	}
+	if (endp)
+		*endp = (char *)cp;
+	return result;
+}
+
+long simple_strtol(const char *cp,char **endp,unsigned int base)
+{
+	if(*cp=='-')
+		return -simple_strtoul(cp+1,endp,base);
+	return simple_strtoul(cp,endp,base);
+}
+
+/* we use this so that we can do without the ctype library */
+#define is_digit(c)	((c) >= '0' && (c) <= '9')
+
+static int skip_atoi(const char **s)
+{
+	int i=0;
+
+	while (is_digit(**s))
+		i = i*10 + *((*s)++) - '0';
+	return i;
+}
+
+#define ZEROPAD	1		/* pad with zero */
+#define SIGN	2		/* unsigned/signed long */
+#define PLUS	4		/* show plus */
+#define SPACE	8		/* space if plus */
+#define LEFT	16		/* left justified */
+#define SPECIAL	32		/* 0x */
+#define LARGE	64		/* use 'ABCDEF' instead of 'abcdef' */
+
+#define do_div(n,base) ({ \
+int __res; \
+__res = ((unsigned long) n) % (unsigned) base; \
+n = ((unsigned long) n) / (unsigned) base; \
+__res; })
+
+static char * number(char * str, long num, int base, int size, int precision
+	,int type)
+{
+	char c,sign,tmp[66];
+	const char *digits="0123456789abcdefghijklmnopqrstuvwxyz";
+	int i;
+
+	if (type & LARGE)
+		digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+	if (type & LEFT)
+		type &= ~ZEROPAD;
+	if (base < 2 || base > 36)
+		return 0;
+	c = (type & ZEROPAD) ? '0' : ' ';
+	sign = 0;
+	if (type & SIGN) {
+		if (num < 0) {
+			sign = '-';
+			num = -num;
+			size--;
+		} else if (type & PLUS) {
+			sign = '+';
+			size--;
+		} else if (type & SPACE) {
+			sign = ' ';
+			size--;
+		}
+	}
+	if (type & SPECIAL) {
+		if (base == 16)
+			size -= 2;
+		else if (base == 8)
+			size--;
+	}
+	i = 0;
+	if (num == 0)
+		tmp[i++]='0';
+	else while (num != 0)
+		tmp[i++] = digits[do_div(num,base)];
+	if (i > precision)
+		precision = i;
+	size -= precision;
+	if (!(type&(ZEROPAD+LEFT)))
+		while(size-->0)
+			*str++ = ' ';
+	if (sign)
+		*str++ = sign;
+	if (type & SPECIAL) {
+		if (base==8)
+			*str++ = '0';
+		else if (base==16) {
+			*str++ = '0';
+			*str++ = digits[33];
+		}
+	}
+	if (!(type & LEFT))
+		while (size-- > 0)
+			*str++ = c;
+	while (i < precision--)
+		*str++ = '0';
+	while (i-- > 0)
+		*str++ = tmp[i];
+	while (size-- > 0)
+		*str++ = ' ';
+	return str;
+}
+
+/* Forward decl. needed for IP address printing stuff... */
+int sprintf(char * buf, const char *fmt, ...);
+
+int vsprintf(char *buf, const char *fmt, va_list args)
+{
+	int len;
+	unsigned long num;
+	int i, base;
+	char * str;
+	const char *s;
+
+	int flags;		/* flags to number() */
+
+	int field_width;	/* width of output field */
+	int precision;		/* min. # of digits for integers; max
+				   number of chars for from string */
+	int qualifier;		/* 'h', 'l', or 'L' for integer fields */
+
+	for (str=buf ; *fmt ; ++fmt) {
+		if (*fmt != '%') {
+			*str++ = *fmt;
+			continue;
+		}
+
+		/* process flags */
+		flags = 0;
+		repeat:
+			++fmt;		/* this also skips first '%' */
+			switch (*fmt) {
+				case '-': flags |= LEFT; goto repeat;
+				case '+': flags |= PLUS; goto repeat;
+				case ' ': flags |= SPACE; goto repeat;
+				case '#': flags |= SPECIAL; goto repeat;
+				case '0': flags |= ZEROPAD; goto repeat;
+				}
+
+		/* get field width */
+		field_width = -1;
+		if (is_digit(*fmt))
+			field_width = skip_atoi(&fmt);
+		else if (*fmt == '*') {
+			++fmt;
+			/* it's the next argument */
+			field_width = va_arg(args, int);
+			if (field_width < 0) {
+				field_width = -field_width;
+				flags |= LEFT;
+			}
+		}
+
+		/* get the precision */
+		precision = -1;
+		if (*fmt == '.') {
+			++fmt;
+			if (is_digit(*fmt))
+				precision = skip_atoi(&fmt);
+			else if (*fmt == '*') {
+				++fmt;
+				/* it's the next argument */
+				precision = va_arg(args, int);
+			}
+			if (precision < 0)
+				precision = 0;
+		}
+
+		/* get the conversion qualifier */
+		qualifier = -1;
+		if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L') {
+			qualifier = *fmt;
+			++fmt;
+		}
+
+		/* default base */
+		base = 10;
+
+		switch (*fmt) {
+		case 'c':
+			if (!(flags & LEFT))
+				while (--field_width > 0)
+					*str++ = ' ';
+			*str++ = (unsigned char) va_arg(args, int);
+			while (--field_width > 0)
+				*str++ = ' ';
+			continue;
+
+		case 's':
+			s = va_arg(args, char *);
+			if (!s)
+				s = "<NULL>";
+
+			len = strnlen(s, precision);
+
+			if (!(flags & LEFT))
+				while (len < field_width--)
+					*str++ = ' ';
+			for (i = 0; i < len; ++i)
+				*str++ = *s++;
+			while (len < field_width--)
+				*str++ = ' ';
+			continue;
+
+		case 'p':
+			if (field_width == -1) {
+				field_width = 2*sizeof(void *);
+				flags |= ZEROPAD;
+			}
+			str = number(str,
+				(unsigned long) va_arg(args, void *), 16,
+				field_width, precision, flags);
+			continue;
+
+
+		case 'n':
+			if (qualifier == 'l') {
+				long * ip = va_arg(args, long *);
+				*ip = (str - buf);
+			} else {
+				int * ip = va_arg(args, int *);
+				*ip = (str - buf);
+			}
+			continue;
+
+		case '%':
+			*str++ = '%';
+			continue;
+
+		/* integer number formats - set up the flags and "break" */
+		case 'o':
+			base = 8;
+			break;
+
+		case 'X':
+			flags |= LARGE;
+		case 'x':
+			base = 16;
+			break;
+
+		case 'd':
+		case 'i':
+			flags |= SIGN;
+		case 'u':
+			break;
+
+		default:
+			*str++ = '%';
+			if (*fmt)
+				*str++ = *fmt;
+			else
+				--fmt;
+			continue;
+		}
+		if (qualifier == 'l')
+			num = va_arg(args, unsigned long);
+		else if (qualifier == 'h') {
+			num = (unsigned short) va_arg(args, int);
+			if (flags & SIGN)
+				num = (short) num;
+		} else if (flags & SIGN)
+			num = va_arg(args, int);
+		else
+			num = va_arg(args, unsigned int);
+		str = number(str, num, base, field_width, precision, flags);
+	}
+	*str = '\0';
+	return str-buf;
+}
+
+int sprintf(char * buf, const char *fmt, ...)
+{
+	va_list args;
+	int i;
+
+	va_start(args, fmt);
+	i=vsprintf(buf,fmt,args);
+	va_end(args);
+	return i;
+}
+
+void panic(const char *fmt, ...)
+{
+	va_list	args;
+	va_start(args, fmt);
+	printf(fmt);
+	putc('\n');
+	va_end(args);
+#if defined (CONFIG_PANIC_HANG)
+	hang();
+#else
+	udelay (100000);	/* allow messages to go out */
+	do_reset (NULL, 0, 0, NULL);
+#endif
+}