Initial revision

common/cmd_cache.c

+/*
+ * (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
+ */
+
+/*
+ * Cache support: switch on or off, get status
+ */
+#include <common.h>
+#include <command.h>
+#include <cmd_cache.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_CACHE)
+
+static int on_off (const char *);
+
+int do_icache ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	switch (argc) {
+	case 2:			/* on / off	*/
+		switch (on_off(argv[1])) {
+#if 0	/* prevented by varargs handling; FALLTROUGH is harmless, too */
+		default: printf ("Usage:\n%s\n", cmdtp->usage);
+			return;
+#endif
+		case 0:	icache_disable();
+			break;
+		case 1:	icache_enable ();
+			break;
+		}
+		/* FALL TROUGH */
+	case 1:			/* get status */
+		printf ("Instruction Cache is %s\n",
+			icache_status() ? "ON" : "OFF");
+		return 0;
+	default:
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+	return 0;
+}
+
+int do_dcache ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	switch (argc) {
+	case 2:			/* on / off	*/
+		switch (on_off(argv[1])) {
+#if 0	/* prevented by varargs handling; FALLTROUGH is harmless, too */
+		default: printf ("Usage:\n%s\n", cmdtp->usage);
+			return;
+#endif
+		case 0:	dcache_disable();
+			break;
+		case 1:	dcache_enable ();
+			break;
+		}
+		/* FALL TROUGH */
+	case 1:			/* get status */
+		printf ("Data (writethrough) Cache is %s\n",
+			dcache_status() ? "ON" : "OFF");
+		return 0;
+	default:
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+	return 0;
+
+}
+
+static int on_off (const char *s)
+{
+	if (strcmp(s, "on") == 0) {
+		return (1);
+	} else if (strcmp(s, "off") == 0) {
+		return (0);
+	}
+	return (-1);
+}
+
+#endif	/* CFG_CMD_CACHE */

common/cmd_console.c

+/*
+ * (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
+ */
+
+/*
+ * Boot support
+ */
+#include <common.h>
+#include <command.h>
+#include <devices.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_CONSOLE)
+
+extern void _do_coninfo (void);
+int do_coninfo (cmd_tbl_t * cmd, int flag, int argc, char *argv[])
+{
+	int i, l;
+
+	/* Scan for valid output and input devices */
+
+	printf ("List of available devices:\n");
+
+	for (i = 1; i <= ListNumItems (devlist); i++) {
+		device_t *dev = ListGetPtrToItem (devlist, i);
+
+		printf ("%-8s %08x %c%c%c ",
+			dev->name,
+			dev->flags,
+			(dev->flags & DEV_FLAGS_SYSTEM) ? 'S' : '.',
+			(dev->flags & DEV_FLAGS_INPUT) ? 'I' : '.',
+			(dev->flags & DEV_FLAGS_OUTPUT) ? 'O' : '.');
+
+		for (l = 0; l < MAX_FILES; l++) {
+			if (stdio_devices[l] == dev) {
+				printf ("%s ", stdio_names[l]);
+			}
+		}
+		putc ('\n');
+	}
+	return 0;
+}
+#endif /* CFG_CMD_CONSOLE */

common/cmd_date.c

+/*
+ * (C) Copyright 2001
+ * 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
+ */
+
+/*
+ * RTC, Date & Time support: get and set date & time
+ */
+#include <common.h>
+#include <command.h>
+#include <rtc.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_DATE)
+
+const char *weekdays[] = {
+	"Sun", "Mon", "Tues", "Wednes", "Thurs", "Fri", "Satur",
+};
+
+int mk_date (char *, struct rtc_time *);
+
+int do_date (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	struct rtc_time tm;
+	int rcode = 0;
+
+	switch (argc) {
+	case 2:			/* set date & time */
+		if (strcmp(argv[1],"reset") == 0) {
+			printf ("Reset RTC...\n");
+			rtc_reset ();
+		} else {
+			/* initialize tm with current time */
+			rtc_get (&tm);
+			/* insert new date & time */
+			if (mk_date (argv[1], &tm) != 0) {
+				printf ("## Bad date format\n");
+				return 1;
+			}
+			/* and write to RTC */
+			rtc_set (&tm);
+		}
+		/* FALL TROUGH */
+	case 1:			/* get date & time */
+		rtc_get (&tm);
+
+		printf ("Date: %4d-%02d-%02d (%sday)    Time: %2d:%02d:%02d\n",
+			tm.tm_year, tm.tm_mon, tm.tm_mday,
+			(tm.tm_wday<0 || tm.tm_wday>6) ?
+				"unknown " : weekdays[tm.tm_wday],
+			tm.tm_hour, tm.tm_min, tm.tm_sec);
+
+		return 0;
+	default:
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		rcode = 1;
+	}
+	return rcode;
+}
+
+/*
+ * simple conversion of two-digit string with error checking
+ */
+static int cnvrt2 (char *str, int *valp)
+{
+	int val;
+
+	if ((*str < '0') || (*str > '9'))
+		return (-1);
+
+	val = *str - '0';
+
+	++str;
+
+	if ((*str < '0') || (*str > '9'))
+		return (-1);
+
+	*valp = 10 * val + (*str - '0');
+
+	return (0);
+}
+
+/*
+ * Convert date string: MMDDhhmm[[CC]YY][.ss]
+ *
+ * Some basic checking for valid values is done, but this will not catch
+ * all possible error conditions.
+ */
+int mk_date (char *datestr, struct rtc_time *tmp)
+{
+	int len, val;
+	char *ptr;
+
+	ptr = strchr (datestr,'.');
+	len = strlen (datestr);
+
+	/* Set seconds */
+	if (ptr) {
+		int sec;
+
+		*ptr++ = '\0';
+		if ((len - (ptr - datestr)) != 2)
+			return (-1);
+
+		len = strlen (datestr);
+
+		if (cnvrt2 (ptr, &sec))
+			return (-1);
+
+		tmp->tm_sec = sec;
+	} else {
+		tmp->tm_sec = 0;
+	}
+
+	if (len == 12) {		/* MMDDhhmmCCYY	*/
+		int year, century;
+
+		if (cnvrt2 (datestr+ 8, &century) ||
+		    cnvrt2 (datestr+10, &year) ) {
+			return (-1);
+		}
+		tmp->tm_year = 100 * century + year;
+	} else if (len == 10) {		/* MMDDhhmmYY	*/
+		int year, century;
+
+		century = tmp->tm_year / 100;
+		if (cnvrt2 (datestr+ 8, &year))
+			return (-1);
+		tmp->tm_year = 100 * century + year;
+	}
+
+	switch (len) {
+	case 8:			/* MMDDhhmm	*/
+		/* fall thru */
+	case 10:		/* MMDDhhmmYY	*/
+		/* fall thru */
+	case 12:		/* MMDDhhmmCCYY	*/
+		if (cnvrt2 (datestr+0, &val) ||
+		    val > 12) {
+			break;
+		}
+		tmp->tm_mon  = val;
+		if (cnvrt2 (datestr+2, &val) ||
+		    val > ((tmp->tm_mon==2) ? 29 : 31)) {
+			break;
+		}
+		tmp->tm_mday = val;
+
+		if (cnvrt2 (datestr+4, &val) ||
+		    val > 23) {
+			break;
+		}
+		tmp->tm_hour = val;
+
+		if (cnvrt2 (datestr+6, &val) ||
+		    val > 59) {
+			break;
+		}
+		tmp->tm_min  = val;
+
+		/* calculate day of week */
+		GregorianDay (tmp);
+
+		return (0);
+	default:
+		break;
+	}
+
+	return (-1);
+}
+
+#endif	/* CFG_CMD_DATE */

common/cmd_dcr.c

+/*
+ * (C) Copyright 2001
+ * Erik Theisen,  Wave 7 Optics, etheisen@mindspring.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
+ */
+
+/*
+ * IBM 4XX DCR Functions
+ */
+
+#include <common.h>
+#include <config.h>
+#include <command.h>
+#include <cmd_dcr.h>
+
+#if defined(CONFIG_4xx) && defined(CFG_CMD_SETGETDCR)
+
+/* ======================================================================
+ * Interpreter command to retrieve an IBM PPC 4xx Device Control Register
+ * ======================================================================
+ */
+int do_getdcr ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] )
+{
+    unsigned short dcrn;                     /* Device Control Register Num */
+    unsigned long value;                     /* DCR's value */
+
+    /* Validate arguments */
+    if (argc < 2) {
+        printf("Usage:\n%s\n", cmdtp->usage);
+        return 1;
+    }
+
+    /* Get a DCR */
+    dcrn = (unsigned short)simple_strtoul(argv[ 1 ], NULL, 16);
+    value = get_dcr(dcrn);
+
+    printf("%04x: %08lx\n", dcrn, value);
+
+    return 0;
+} /* do_getdcr */
+
+
+/* ======================================================================
+ * Interpreter command to set an IBM PPC 4xx Device Control Register
+ * ======================================================================
+*/
+int do_setdcr ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+    unsigned short dcrn;                     /* Device Control Register Num */
+    unsigned long value;                     /* DCR's value */
+    int nbytes;
+    extern char console_buffer[];
+
+    /* Validate arguments */
+    if (argc < 2) {
+        printf("Usage:\n%s\n", cmdtp->usage);
+        return 1;
+    }
+
+    /* Set a DCR */
+    dcrn = (unsigned short)simple_strtoul(argv[1], NULL, 16);
+    do {
+        value = get_dcr(dcrn);
+        printf("%04x: %08lx", dcrn, value);
+        nbytes = readline(" ? ");
+        if (nbytes == 0) {
+            /*
+             * <CR> pressed as only input, don't modify current
+             * location and exit command.
+             */
+            nbytes = 1;
+            return 0;
+        } else {
+            unsigned long i;
+            char *endp;
+            i = simple_strtoul(console_buffer, &endp, 16);
+            nbytes = endp - console_buffer;
+            if (nbytes)
+                set_dcr(dcrn, i);
+        }
+    } while (nbytes);
+
+    return 0;
+} /* do_setdcr */
+
+#endif /* CONFIG_4xx & CFG_CMD_SETGETDCR */

common/cmd_dtt.c

+/*
+ * (C) Copyright 2001
+ * Erik Theisen, Wave 7 Optics, etheisen@mindspring.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 <config.h>
+#include <command.h>
+#include <cmd_dtt.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_DTT)
+
+#include <dtt.h>
+
+int do_dtt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	int i;
+	unsigned char sensors[] = CONFIG_DTT_SENSORS;
+
+	/*
+	 * Loop through sensors, read
+	 * temperature, and output it.
+	 */
+	for (i = 0; i < sizeof (sensors); i++) {
+		printf ("DTT%d: %i C\n", i + 1, dtt_get_temp (sensors[i]));
+	}
+
+	return 0;
+}	/* do_dtt() */
+
+#endif /* CONFIG_COMMANDS & CFG_CMD_DTT */

common/cmd_eeprom.c

+/*
+ * (C) Copyright 2000, 2001
+ * 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 <config.h>
+#include <command.h>
+#include <i2c.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_EEPROM) || defined(CFG_ENV_IS_IN_EEPROM)
+
+extern void eeprom_init  (void);
+extern int  eeprom_read  (unsigned dev_addr, unsigned offset,
+			  uchar *buffer, unsigned cnt);
+extern int  eeprom_write (unsigned dev_addr, unsigned offset,
+			  uchar *buffer, unsigned cnt);
+#endif
+
+
+#if defined(CFG_EEPROM_X40430)
+	/* Maximum number of times to poll for acknowledge after write */
+#define MAX_ACKNOWLEDGE_POLLS	10
+#endif
+
+/* ------------------------------------------------------------------------- */
+
+#if (CONFIG_COMMANDS & CFG_CMD_EEPROM)
+int do_eeprom ( cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	const char *const fmt =
+		"\nEEPROM @0x%lX %s: addr %08lx  off %04lx  count %ld ... ";
+
+#if defined(CFG_I2C_MULTI_EEPROMS)
+	if (argc == 6) {
+		ulong dev_addr = simple_strtoul (argv[2], NULL, 16);
+		ulong addr = simple_strtoul (argv[3], NULL, 16);
+		ulong off  = simple_strtoul (argv[4], NULL, 16);
+		ulong cnt  = simple_strtoul (argv[5], NULL, 16);
+#else
+	if (argc == 5) {
+		ulong dev_addr = CFG_DEF_EEPROM_ADDR;
+		ulong addr = simple_strtoul (argv[2], NULL, 16);
+		ulong off  = simple_strtoul (argv[3], NULL, 16);
+		ulong cnt  = simple_strtoul (argv[4], NULL, 16);
+#endif /* CFG_I2C_MULTI_EEPROMS */
+
+# ifndef CONFIG_SPI
+		eeprom_init ();
+# endif /* !CONFIG_SPI */
+
+		if (strcmp (argv[1], "read") == 0) {
+			int rcode;
+
+			printf (fmt, dev_addr, argv[1], addr, off, cnt);
+
+			rcode = eeprom_read (dev_addr, off, (uchar *) addr, cnt);
+
+			printf ("done\n");
+			return rcode;
+		} else if (strcmp (argv[1], "write") == 0) {
+			int rcode;
+
+			printf (fmt, dev_addr, argv[1], addr, off, cnt);
+
+			rcode = eeprom_write (dev_addr, off, (uchar *) addr, cnt);
+
+			printf ("done\n");
+			return rcode;
+		}
+	}
+
+	printf ("Usage:\n%s\n", cmdtp->usage);
+	return 1;
+}
+#endif	/* CFG_CMD_EEPROM */
+
+/*-----------------------------------------------------------------------
+ *
+ * for CFG_I2C_EEPROM_ADDR_LEN == 2 (16-bit EEPROM address) offset is
+ *   0x000nxxxx for EEPROM address selectors at n, offset xxxx in EEPROM.
+ *
+ * for CFG_I2C_EEPROM_ADDR_LEN == 1 (8-bit EEPROM page address) offset is
+ *   0x00000nxx for EEPROM address selectors and page number at n.
+ */
+
+#if (CONFIG_COMMANDS & CFG_CMD_EEPROM) || defined(CFG_ENV_IS_IN_EEPROM)
+
+#ifndef CONFIG_SPI
+#if !defined(CFG_I2C_EEPROM_ADDR_LEN) || CFG_I2C_EEPROM_ADDR_LEN < 1 || CFG_I2C_EEPROM_ADDR_LEN > 2
+#error CFG_I2C_EEPROM_ADDR_LEN must be 1 or 2
+#endif
+#endif
+
+int eeprom_read (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt)
+{
+	unsigned end = offset + cnt;
+	unsigned blk_off;
+	int rcode = 0;
+
+	/* Read data until done or would cross a page boundary.
+	 * We must write the address again when changing pages
+	 * because the next page may be in a different device.
+	 */
+	while (offset < end) {
+		unsigned alen, len, maxlen;
+#if CFG_I2C_EEPROM_ADDR_LEN == 1 && !defined(CONFIG_SPI_X)
+		uchar addr[2];
+
+		blk_off = offset & 0xFF;	/* block offset */
+
+		addr[0] = offset >> 8;		/* block number */
+		addr[1] = blk_off;		/* block offset */
+		alen	= 2;
+#else
+		uchar addr[3];
+
+		blk_off = offset & 0xFF;	/* block offset */
+
+		addr[0] = offset >> 16;		/* block number */
+		addr[1] = offset >>  8;		/* upper address octet */
+		addr[2] = blk_off;		/* lower address octet */
+		alen	= 3;
+#endif	/* CFG_I2C_EEPROM_ADDR_LEN, CONFIG_SPI_X */
+
+		addr[0] |= dev_addr;		/* insert device address */
+
+		maxlen = 0x100 - blk_off;
+		if (maxlen > I2C_RXTX_LEN)
+			maxlen = I2C_RXTX_LEN;
+		len    = end - offset;
+		if (len > maxlen)
+			len = maxlen;
+#ifdef CONFIG_SPI
+		spi_read (addr, alen, buffer, len);
+#else
+		if (i2c_read (addr[0], offset, alen-1, buffer, len) != 0)
+			rcode = 1;
+#endif
+		buffer += len;
+		offset += len;
+	}
+	return rcode;
+}
+
+/*-----------------------------------------------------------------------
+ *
+ * for CFG_I2C_EEPROM_ADDR_LEN == 2 (16-bit EEPROM address) offset is
+ *   0x000nxxxx for EEPROM address selectors at n, offset xxxx in EEPROM.
+ *
+ * for CFG_I2C_EEPROM_ADDR_LEN == 1 (8-bit EEPROM page address) offset is
+ *   0x00000nxx for EEPROM address selectors and page number at n.
+ */
+
+int eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt)
+{
+	unsigned end = offset + cnt;
+	unsigned blk_off;
+	int rcode = 0;
+
+#if defined(CFG_EEPROM_X40430)
+	uchar	contr_r_addr[2];
+	uchar	addr_void[2];
+	uchar	contr_reg[2];
+	uchar	ctrl_reg_v;
+	int	i;
+#endif
+
+	/* Write data until done or would cross a write page boundary.
+	 * We must write the address again when changing pages
+	 * because the address counter only increments within a page.
+	 */
+
+	while (offset < end) {
+		unsigned alen, len, maxlen;
+#if CFG_I2C_EEPROM_ADDR_LEN == 1 && !defined(CONFIG_SPI_X)
+		uchar addr[2];
+
+		blk_off = offset & 0xFF;	/* block offset */
+
+		addr[0] = offset >> 8;		/* block number */
+		addr[1] = blk_off;		/* block offset */
+		alen	= 2;
+#else
+		uchar addr[3];
+
+		blk_off = offset & 0xFF;	/* block offset */
+
+		addr[0] = offset >> 16;		/* block number */
+		addr[1] = offset >>  8;		/* upper address octet */
+		addr[2] = blk_off;		/* lower address octet */
+		alen	= 3;
+#endif	/* CFG_I2C_EEPROM_ADDR_LEN, CONFIG_SPI_X */
+
+		addr[0] |= dev_addr;		/* insert device address */
+
+#if defined(CFG_EEPROM_PAGE_WRITE_BITS)
+
+#define	EEPROM_PAGE_SIZE	(1 << CFG_EEPROM_PAGE_WRITE_BITS)
+#define	EEPROM_PAGE_OFFSET(x)	((x) & (EEPROM_PAGE_SIZE - 1))
+
+		maxlen = EEPROM_PAGE_SIZE - EEPROM_PAGE_OFFSET(blk_off);
+#else
+		maxlen = 0x100 - blk_off;
+#endif
+		if (maxlen > I2C_RXTX_LEN)
+			maxlen = I2C_RXTX_LEN;
+
+		len = end - offset;
+		if (len > maxlen)
+			len = maxlen;
+#ifdef CONFIG_SPI
+		spi_write (addr, alen, buffer, len);
+#else
+#if defined(CFG_EEPROM_X40430)
+		/* Get the value of the control register.
+		 * Set current address (internal pointer in the x40430)
+		 * to 0x1ff.
+		 */
+		contr_r_addr[0] = 9;
+		contr_r_addr[1] = 0xff;
+		addr_void[0]    = 0;
+		addr_void[1]    = addr[1];
+#ifdef CFG_I2C_EEPROM_ADDR
+		contr_r_addr[0] |= CFG_I2C_EEPROM_ADDR;
+		addr_void[0]    |= CFG_I2C_EEPROM_ADDR;
+#endif
+		contr_reg[0] = 0xff;
+		if (i2c_read (contr_r_addr[0], contr_r_addr[1], 1, contr_reg, 1) != 0) {
+			rcode = 1;
+		}
+		ctrl_reg_v = contr_reg[0];
+
+		/* Are any of the eeprom blocks write protected?
+		 */
+		if (ctrl_reg_v & 0x18) {
+			ctrl_reg_v &= ~0x18;   /* reset block protect bits  */
+			ctrl_reg_v |=  0x02;   /* set write enable latch    */
+			ctrl_reg_v &= ~0x04;   /* clear RWEL                */
+
+			/* Set write enable latch.
+			 */
+			contr_reg[0] = 0x02;
+			if (i2c_write (contr_r_addr[0], 0xff, 1, contr_reg, 1) != 0) {
+				rcode = 1;
+			}
+
+			/* Set register write enable latch.
+			 */
+			contr_reg[0] = 0x06;
+			if (i2c_write (contr_r_addr[0], 0xFF, 1, contr_reg, 1) != 0) {
+				rcode = 1;
+			}
+
+			/* Modify ctrl register.
+			 */
+			contr_reg[0] = ctrl_reg_v;
+			if (i2c_write (contr_r_addr[0], 0xFF, 1, contr_reg, 1) != 0) {
+				rcode = 1;
+			}
+
+			/* The write (above) is an operation on NV memory.
+			 * These can take some time (~5ms), and the device
+			 * will not respond to further I2C messages till
+			 * it's completed the write.
+			 * So poll device for an I2C acknowledge.
+			 * When we get one we know we can continue with other
+			 * operations.
+			 */
+			contr_reg[0] = 0;
+			for (i = 0; i < MAX_ACKNOWLEDGE_POLLS; i++) {
+				if (i2c_read (addr_void[0], addr_void[1], 1, contr_reg, 1) == 1)
+					break;	/* got ack */
+#if defined(CFG_EEPROM_PAGE_WRITE_DELAY_MS)
+				udelay(CFG_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
+#endif
+			}
+			if (i == MAX_ACKNOWLEDGE_POLLS) {
+				printf("EEPROM poll acknowledge failed\n");
+				rcode = 1;
+			}
+		}
+
+		/* Is the write enable latch on?.
+		 */
+		else if (!(ctrl_reg_v & 0x02)) {
+			/* Set write enable latch.
+			 */
+			contr_reg[0] = 0x02;
+			if (i2c_write (contr_r_addr[0], 0xFF, 1, contr_reg, 1) != 0) {
+			       rcode = 1;
+			}
+		}
+		/* Write is enabled ... now write eeprom value.
+		 */
+#endif
+		if (i2c_write (addr[0], offset, alen-1, buffer, len) != 0)
+			rcode = 1;
+
+#endif
+		buffer += len;
+		offset += len;
+
+#if defined(CFG_EEPROM_PAGE_WRITE_DELAY_MS)
+		udelay(CFG_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
+#endif
+	}
+	return rcode;
+}
+
+/*-----------------------------------------------------------------------
+ * Set default values
+ */
+#ifndef	CFG_I2C_SPEED
+#define	CFG_I2C_SPEED	50000
+#endif
+
+#ifndef	CFG_I2C_SLAVE
+#define	CFG_I2C_SLAVE	0xFE
+#endif
+
+void eeprom_init  (void)
+{
+#if defined(CONFIG_SPI)
+	spi_init_f ();
+#endif
+#if defined(CONFIG_HARD_I2C) || \
+    defined(CONFIG_SOFT_I2C)
+	i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
+#endif
+}
+/*-----------------------------------------------------------------------
+ */
+#endif	/* CFG_CMD_EEPROM */

common/cmd_misc.c

+/*
+ * (C) Copyright 2001
+ * 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
+ */
+
+/*
+ * Misc functions
+ */
+#include <common.h>
+#include <command.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_MISC)
+
+int do_sleep (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	ulong delay;
+
+	if (argc != 2) {
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	delay = simple_strtoul(argv[1], NULL, 10);
+
+	while (delay) {
+		int i;
+		for (i=0; i<1000; ++i) {
+			if (ctrlc ()) {
+				return (-1);
+			}
+			udelay (1000);
+		}
+		--delay;
+	}
+	return 0;
+}
+
+#endif	/* CFG_CMD_MISC */

common/cmd_net.c

+/*
+ * (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
+ */
+
+/*
+ * Boot support
+ */
+#include <common.h>
+#include <command.h>
+#include <cmd_net.h>
+#include <net.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+
+# if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT)
+# include <cmd_autoscript.h>
+# endif
+
+extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
+
+static int netboot_common (int, cmd_tbl_t *, int , char *[]);
+
+int do_bootp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	return netboot_common (BOOTP, cmdtp, argc, argv);
+}
+
+int do_tftpb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	return netboot_common (TFTP, cmdtp, argc, argv);
+}
+
+int do_rarpb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	return netboot_common (RARP, cmdtp, argc, argv);
+}
+
+#if (CONFIG_COMMANDS & CFG_CMD_DHCP)
+int do_dhcp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	return netboot_common(DHCP, cmdtp, argc, argv);
+}
+#endif	/* CFG_CMD_DHCP */
+
+static void netboot_update_env(void)
+{
+    char tmp[16] ;
+
+    if (NetOurGatewayIP) {
+	ip_to_string (NetOurGatewayIP, tmp);
+	setenv("gatewayip", tmp);
+    }
+
+    if (NetOurSubnetMask) {
+	ip_to_string (NetOurSubnetMask, tmp);
+	setenv("netmask", tmp);
+    }
+
+    if (NetOurHostName[0])
+	setenv("hostname", NetOurHostName);
+
+    if (NetOurRootPath[0])
+	setenv("rootpath", NetOurRootPath);
+
+    if (NetOurIP) {
+	ip_to_string (NetOurIP, tmp);
+	setenv("ipaddr", tmp);
+    }
+
+    if (NetServerIP) {
+	ip_to_string (NetServerIP, tmp);
+	setenv("serverip", tmp);
+    }
+
+    if (NetOurDNSIP) {
+	ip_to_string (NetOurDNSIP, tmp);
+	setenv("dnsip", tmp);
+    }
+}
+static int
+netboot_common (int proto, cmd_tbl_t *cmdtp, int argc, char *argv[])
+{
+	char *s;
+	int   rcode = 0;
+	int   size;
+
+	/* pre-set load_addr */
+	if ((s = getenv("loadaddr")) != NULL) {
+		load_addr = simple_strtoul(s, NULL, 16);
+	}
+
+	switch (argc) {
+	case 1:
+		break;
+
+	case 2:	/* only one arg - accept two forms:
+		 * just load address, or just boot file name.
+		 * The latter form must be written "filename" here.
+		 */
+		if (argv[1][0] == '"') {	/* just boot filename */
+			copy_filename (BootFile, argv[1], sizeof(BootFile));
+		} else {			/* load address	*/
+			load_addr = simple_strtoul(argv[1], NULL, 16);
+		}
+		break;
+
+	case 3:	load_addr = simple_strtoul(argv[1], NULL, 16);
+		copy_filename (BootFile, argv[2], sizeof(BootFile));
+
+		break;
+
+	default: printf ("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	if ((size = NetLoop(proto)) == 0)
+		return 1;
+
+	/* NetLoop ok, update environment */
+	netboot_update_env();
+
+	/* flush cache */
+	flush_cache(load_addr, size);
+
+	/* Loading ok, check if we should attempt an auto-start */
+	if (((s = getenv("autostart")) != NULL) && (strcmp(s,"yes") == 0)) {
+		char *local_args[2];
+		local_args[0] = argv[0];
+		local_args[1] = NULL;
+
+		printf ("Automatic boot of image at addr 0x%08lX ...\n",
+			load_addr);
+		rcode = do_bootm (cmdtp, 0, 1, local_args);
+	}
+
+#ifdef CONFIG_AUTOSCRIPT
+	if (((s = getenv("autoscript")) != NULL) && (strcmp(s,"yes") == 0)) {
+		printf("Running autoscript at addr 0x%08lX ...\n", load_addr);
+		rcode = autoscript (load_addr);
+	}
+#endif
+	return rcode;
+}
+
+#endif	/* CFG_CMD_NET */