--- /dev/null
+/*
+ * (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 */
--- /dev/null
+/*
+ * (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 */
--- /dev/null
+/*
+ * (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, ¢ury) ||
+ 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 */
--- /dev/null
+/*
+ * (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 */
--- /dev/null
+/*
+ * (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 */
--- /dev/null
+/*
+ * (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 */
--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Denis Peter, MPL AG, d.peter@mpl.ch.
+ *
+ * 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
+ *
+ */
+/*
+ * Floppy Disk support
+ */
+
+#include <common.h>
+#include <config.h>
+#include <command.h>
+#include <image.h>
+
+
+#undef FDC_DEBUG
+
+#ifdef FDC_DEBUG
+#define PRINTF(fmt,args...) printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+
+#if (CONFIG_COMMANDS & CFG_CMD_DATE)
+#include <rtc.h>
+#endif
+
+#if (CONFIG_COMMANDS & CFG_CMD_FDC)
+
+
+typedef struct {
+ int flags; /* connected drives ect */
+ unsigned long blnr; /* Logical block nr */
+ uchar drive; /* drive no */
+ uchar cmdlen; /* cmd length */
+ uchar cmd[16]; /* cmd desc */
+ uchar dma; /* if > 0 dma enabled */
+ uchar result[11];/* status information */
+ uchar resultlen; /* lenght of result */
+} FDC_COMMAND_STRUCT;
+/* flags: only the lower 8bit used:
+ * bit 0 if set drive 0 is present
+ * bit 1 if set drive 1 is present
+ * bit 2 if set drive 2 is present
+ * bit 3 if set drive 3 is present
+ * bit 4 if set disk in drive 0 is inserted
+ * bit 5 if set disk in drive 1 is inserted
+ * bit 6 if set disk in drive 2 is inserted
+ * bit 7 if set disk in drive 4 is inserted
+ */
+
+
+/* cmd indexes */
+#define COMMAND 0
+#define DRIVE 1
+#define CONFIG0 1
+#define SPEC_HUTSRT 1
+#define TRACK 2
+#define CONFIG1 2
+#define SPEC_HLT 2
+#define HEAD 3
+#define CONFIG2 3
+#define SECTOR 4
+#define SECTOR_SIZE 5
+#define LAST_TRACK 6
+#define GAP 7
+#define DTL 8
+/* result indexes */
+#define STATUS_0 0
+#define STATUS_PCN 1
+#define STATUS_1 1
+#define STATUS_2 2
+#define STATUS_TRACK 3
+#define STATUS_HEAD 4
+#define STATUS_SECT 5
+#define STATUS_SECT_SIZE 6
+
+
+/* Register addresses */
+#define FDC_BASE 0x3F0
+#define FDC_SRA FDC_BASE + 0 /* Status Register A */
+#define FDC_SRB FDC_BASE + 1 /* Status Register B */
+#define FDC_DOR FDC_BASE + 2 /* Digital Output Register */
+#define FDC_TDR FDC_BASE + 3 /* Tape Drive Register */
+#define FDC_DSR FDC_BASE + 4 /* Data rate Register */
+#define FDC_MSR FDC_BASE + 4 /* Main Status Register */
+#define FDC_FIFO FDC_BASE + 5 /* FIFO */
+#define FDC_DIR FDC_BASE + 6 /* Digital Input Register */
+#define FDC_CCR FDC_BASE + 7 /* Configuration Control */
+/* Commands */
+#define FDC_CMD_SENSE_INT 0x08
+#define FDC_CMD_CONFIGURE 0x13
+#define FDC_CMD_SPECIFY 0x03
+#define FDC_CMD_RECALIBRATE 0x07
+#define FDC_CMD_READ 0x06
+#define FDC_CMD_READ_TRACK 0x02
+#define FDC_CMD_READ_ID 0x0A
+#define FDC_CMD_DUMP_REG 0x0E
+#define FDC_CMD_SEEK 0x0F
+
+#define FDC_CMD_SENSE_INT_LEN 0x01
+#define FDC_CMD_CONFIGURE_LEN 0x04
+#define FDC_CMD_SPECIFY_LEN 0x03
+#define FDC_CMD_RECALIBRATE_LEN 0x02
+#define FDC_CMD_READ_LEN 0x09
+#define FDC_CMD_READ_TRACK_LEN 0x09
+#define FDC_CMD_READ_ID_LEN 0x02
+#define FDC_CMD_DUMP_REG_LEN 0x01
+#define FDC_CMD_SEEK_LEN 0x03
+
+#define FDC_FIFO_THR 0x0C
+#define FDC_FIFO_DIS 0x00
+#define FDC_IMPLIED_SEEK 0x01
+#define FDC_POLL_DIS 0x00
+#define FDC_PRE_TRK 0x00
+#define FDC_CONFIGURE FDC_FIFO_THR | (FDC_POLL_DIS<<4) | (FDC_FIFO_DIS<<5) | (FDC_IMPLIED_SEEK << 6)
+#define FDC_MFM_MODE 0x01 /* MFM enable */
+#define FDC_SKIP_MODE 0x00 /* skip enable */
+
+#define FDC_TIME_OUT 100000 /* time out */
+#define FDC_RW_RETRIES 3 /* read write retries */
+#define FDC_CAL_RETRIES 3 /* calibration and seek retries */
+
+
+/* Disk structure */
+typedef struct {
+ unsigned int size; /* nr of sectors total */
+ unsigned int sect; /* sectors per track */
+ unsigned int head; /* nr of heads */
+ unsigned int track; /* nr of tracks */
+ unsigned int stretch; /* !=0 means double track steps */
+ unsigned char gap; /* gap1 size */
+ unsigned char rate; /* data rate. |= 0x40 for perpendicular */
+ unsigned char spec1; /* stepping rate, head unload time */
+ unsigned char fmt_gap; /* gap2 size */
+ unsigned char hlt; /* head load time */
+ unsigned char sect_code; /* Sector Size code */
+ const char * name; /* used only for predefined formats */
+} FD_GEO_STRUCT;
+
+
+/* supported Floppy types (currently only one) */
+const static FD_GEO_STRUCT floppy_type[2] = {
+ { 2880,18,2,80,0,0x1B,0x00,0xCF,0x6C,16,2,"H1440" }, /* 7 1.44MB 3.5" */
+ { 0, 0,0, 0,0,0x00,0x00,0x00,0x00, 0,0,NULL }, /* end of table */
+};
+
+static FDC_COMMAND_STRUCT cmd; /* global command struct */
+
+/* Supporting Functions */
+/* reads a Register of the FDC */
+unsigned char read_fdc_reg(unsigned int addr)
+{
+ volatile unsigned char *val = (volatile unsigned char *)(CFG_ISA_IO_BASE_ADDRESS | addr);
+ return val[0];
+}
+
+/* writes a Register of the FDC */
+void write_fdc_reg(unsigned int addr, unsigned char val)
+{
+ volatile unsigned char *tmp = (volatile unsigned char *)(CFG_ISA_IO_BASE_ADDRESS | addr);
+ tmp[0]=val;
+}
+
+/* waits for an interrupt (polling) */
+int wait_for_fdc_int(void)
+{
+ unsigned long timeout;
+ timeout = FDC_TIME_OUT;
+ while((read_fdc_reg(FDC_SRA)&0x80)==0) {
+ timeout--;
+ udelay(10);
+ if(timeout==0) /* timeout occured */
+ return FALSE;
+ }
+ return TRUE;
+}
+
+
+/* reads a byte from the FIFO of the FDC and checks direction and RQM bit
+ of the MSR. returns -1 if timeout, or byte if ok */
+int read_fdc_byte(void)
+{
+ unsigned long timeout;
+ timeout = FDC_TIME_OUT;
+ while((read_fdc_reg(FDC_MSR)&0xC0)!=0xC0) {
+ /* direction out and ready */
+ udelay(10);
+ timeout--;
+ if(timeout==0) /* timeout occured */
+ return -1;
+ }
+ return read_fdc_reg(FDC_FIFO);
+}
+
+/* if the direction of the FIFO is wrong, this routine is used to
+ empty the FIFO. Should _not_ be used */
+int fdc_need_more_output(void)
+{
+ unsigned char c;
+ while((read_fdc_reg(FDC_MSR)&0xC0)==0xC0) {
+ c=(unsigned char)read_fdc_byte();
+ printf("Error: more output: %x\n",c);
+ }
+ return TRUE;
+}
+
+
+/* writes a byte to the FIFO of the FDC and checks direction and RQM bit
+ of the MSR */
+int write_fdc_byte(unsigned char val)
+{
+ unsigned long timeout;
+ timeout = FDC_TIME_OUT;
+ while((read_fdc_reg(FDC_MSR)&0xC0)!=0x80) {
+ /* direction in and ready for byte */
+ timeout--;
+ udelay(10);
+ fdc_need_more_output();
+ if(timeout==0) /* timeout occured */
+ return FALSE;
+ }
+ write_fdc_reg(FDC_FIFO,val);
+ return TRUE;
+}
+
+/* sets up all FDC commands and issues it to the FDC. If
+ the command causes direct results (no Execution Phase)
+ the result is be read as well. */
+
+int fdc_issue_cmd(FDC_COMMAND_STRUCT *pCMD,FD_GEO_STRUCT *pFG)
+{
+ int i;
+ unsigned long head,track,sect,timeout;
+ track = pCMD->blnr / (pFG->sect * pFG->head); /* track nr */
+ sect = pCMD->blnr % (pFG->sect * pFG->head); /* remaining blocks */
+ head = sect / pFG->sect; /* head nr */
+ sect = sect % pFG->sect; /* remaining blocks */
+ sect++; /* sectors are 1 based */
+ PRINTF("Track %ld, Head %ld, Sector %ld, Drive %d (blnr %ld)\n",track,head,sect,pCMD->drive,pCMD->blnr);
+ if(head|=0) { /* max heads = 2 */
+ pCMD->cmd[DRIVE]=pCMD->drive | 0x04; /* head 1 */
+ pCMD->cmd[HEAD]=(unsigned char) head; /* head register */
+ }
+ else {
+ pCMD->cmd[DRIVE]=pCMD->drive; /* head 0 */
+ pCMD->cmd[HEAD]=(unsigned char) head; /* head register */
+ }
+ pCMD->cmd[TRACK]=(unsigned char) track; /* track */
+ switch (pCMD->cmd[COMMAND]) {
+ case FDC_CMD_READ:
+ pCMD->cmd[SECTOR]=(unsigned char) sect; /* sector */
+ pCMD->cmd[SECTOR_SIZE]=pFG->sect_code; /* sector size code */
+ pCMD->cmd[LAST_TRACK]=pFG->sect; /* End of track */
+ pCMD->cmd[GAP]=pFG->gap; /* gap */
+ pCMD->cmd[DTL]=0xFF; /* DTL */
+ pCMD->cmdlen=FDC_CMD_READ_LEN;
+ pCMD->cmd[COMMAND]|=(FDC_MFM_MODE<<6); /* set MFM bit */
+ pCMD->cmd[COMMAND]|=(FDC_SKIP_MODE<<5); /* set Skip bit */
+ pCMD->resultlen=0; /* result only after execution */
+ break;
+ case FDC_CMD_SEEK:
+ pCMD->cmdlen=FDC_CMD_SEEK_LEN;
+ pCMD->resultlen=0; /* no result */
+ break;
+ case FDC_CMD_CONFIGURE:
+ pCMD->cmd[CONFIG0]=0;
+ pCMD->cmd[CONFIG1]=FDC_CONFIGURE; /* FIFO Threshold, Poll, Enable FIFO */
+ pCMD->cmd[CONFIG2]=FDC_PRE_TRK; /* Precompensation Track */
+ pCMD->cmdlen=FDC_CMD_CONFIGURE_LEN;
+ pCMD->resultlen=0; /* no result */
+ break;
+ case FDC_CMD_SPECIFY:
+ pCMD->cmd[SPEC_HUTSRT]=pFG->spec1;
+ pCMD->cmd[SPEC_HLT]=(pFG->hlt)<<1; /* head load time */
+ if(pCMD->dma==0)
+ pCMD->cmd[SPEC_HLT]|=0x1; /* no dma */
+ pCMD->cmdlen=FDC_CMD_SPECIFY_LEN;
+ pCMD->resultlen=0; /* no result */
+ break;
+ case FDC_CMD_DUMP_REG:
+ pCMD->cmdlen=FDC_CMD_DUMP_REG_LEN;
+ pCMD->resultlen=10; /* 10 byte result */
+ break;
+ case FDC_CMD_READ_ID:
+ pCMD->cmd[COMMAND]|=(FDC_MFM_MODE<<6); /* set MFM bit */
+ pCMD->cmdlen=FDC_CMD_READ_ID_LEN;
+ pCMD->resultlen=7; /* 7 byte result */
+ break;
+ case FDC_CMD_RECALIBRATE:
+ pCMD->cmd[DRIVE]&=0x03; /* don't set the head bit */
+ pCMD->cmdlen=FDC_CMD_RECALIBRATE_LEN;
+ pCMD->resultlen=0; /* no result */
+ break;
+ break;
+ case FDC_CMD_SENSE_INT:
+ pCMD->cmdlen=FDC_CMD_SENSE_INT_LEN;
+ pCMD->resultlen=2;
+ break;
+ }
+ for(i=0;i<pCMD->cmdlen;i++) {
+ /* PRINTF("write cmd%d = 0x%02X\n",i,pCMD->cmd[i]); */
+ if(write_fdc_byte(pCMD->cmd[i])==FALSE) {
+ PRINTF("Error: timeout while issue cmd%d\n",i);
+ return FALSE;
+ }
+ }
+ timeout=FDC_TIME_OUT;
+ for(i=0;i<pCMD->resultlen;i++) {
+ while((read_fdc_reg(FDC_MSR)&0xC0)!=0xC0) {
+ timeout--;
+ if(timeout==0) {
+ PRINTF(" timeout while reading result%d MSR=0x%02X\n",i,read_fdc_reg(FDC_MSR));
+ return FALSE;
+ }
+ }
+ pCMD->result[i]=(unsigned char)read_fdc_byte();
+ }
+ return TRUE;
+}
+
+/* selects the drive assigned in the cmd structur and
+ switches on the Motor */
+void select_fdc_drive(FDC_COMMAND_STRUCT *pCMD)
+{
+ unsigned char val;
+
+ val=(1<<(4+pCMD->drive))|pCMD->drive|0xC; /* set reset, dma gate and motor bits */
+ if((read_fdc_reg(FDC_DOR)&val)!=val) {
+ write_fdc_reg(FDC_DOR,val);
+ for(val=0;val<255;val++)
+ udelay(500); /* wait some time to start motor */
+ }
+}
+
+/* switches off the Motor of the specified drive */
+void stop_fdc_drive(FDC_COMMAND_STRUCT *pCMD)
+{
+ unsigned char val;
+
+ val=(1<<(4+pCMD->drive))|pCMD->drive; /* sets motor bits */
+ write_fdc_reg(FDC_DOR,(read_fdc_reg(FDC_DOR)&~val));
+}
+
+/* issues a recalibrate command, waits for interrupt and
+ * issues a sense_interrupt */
+int fdc_recalibrate(FDC_COMMAND_STRUCT *pCMD,FD_GEO_STRUCT *pFG)
+{
+ pCMD->cmd[COMMAND]=FDC_CMD_RECALIBRATE;
+ if(fdc_issue_cmd(pCMD,pFG)==FALSE)
+ return FALSE;
+ while(wait_for_fdc_int()!=TRUE);
+ pCMD->cmd[COMMAND]=FDC_CMD_SENSE_INT;
+ return(fdc_issue_cmd(pCMD,pFG));
+}
+
+/* issues a recalibrate command, waits for interrupt and
+ * issues a sense_interrupt */
+int fdc_seek(FDC_COMMAND_STRUCT *pCMD,FD_GEO_STRUCT *pFG)
+{
+ pCMD->cmd[COMMAND]=FDC_CMD_SEEK;
+ if(fdc_issue_cmd(pCMD,pFG)==FALSE)
+ return FALSE;
+ while(wait_for_fdc_int()!=TRUE);
+ pCMD->cmd[COMMAND]=FDC_CMD_SENSE_INT;
+ return(fdc_issue_cmd(pCMD,pFG));
+}
+
+
+/* terminates current command, by not servicing the FIFO
+ * waits for interrupt and fills in the result bytes */
+int fdc_terminate(FDC_COMMAND_STRUCT *pCMD)
+{
+ int i;
+ for(i=0;i<100;i++)
+ udelay(500); /* wait 500usec for fifo overrun */
+ while((read_fdc_reg(FDC_SRA)&0x80)==0x00); /* wait as long as no int has occured */
+ for(i=0;i<7;i++) {
+ pCMD->result[i]=(unsigned char)read_fdc_byte();
+ }
+ return TRUE;
+}
+
+/* reads data from FDC, seek commands are issued automatic */
+int fdc_read_data(unsigned char *buffer, unsigned long blocks,FDC_COMMAND_STRUCT *pCMD, FD_GEO_STRUCT *pFG)
+{
+ /* first seek to start address */
+ unsigned long len,lastblk,readblk,i,timeout,ii,offset;
+ unsigned char pcn,c,retriesrw,retriescal;
+ unsigned char *bufferw; /* working buffer */
+ int sect_size;
+ int flags;
+
+ flags=disable_interrupts(); /* switch off all Interrupts */
+ select_fdc_drive(pCMD); /* switch on drive */
+ sect_size=0x080<<pFG->sect_code;
+ retriesrw=0;
+ retriescal=0;
+ offset=0;
+ if(fdc_seek(pCMD,pFG)==FALSE) {
+ stop_fdc_drive(pCMD);
+ enable_interrupts();
+ return FALSE;
+ }
+ if((pCMD->result[STATUS_0]&0x20)!=0x20) {
+ printf("Seek error Status: %02X\n",pCMD->result[STATUS_0]);
+ stop_fdc_drive(pCMD);
+ enable_interrupts();
+ return FALSE;
+ }
+ pcn=pCMD->result[STATUS_PCN]; /* current track */
+ /* now determine the next seek point */
+ lastblk=pCMD->blnr + blocks;
+ /* readblk=(pFG->head*pFG->sect)-(pCMD->blnr%(pFG->head*pFG->sect)); */
+ readblk=pFG->sect-(pCMD->blnr%pFG->sect);
+ PRINTF("1st nr of block possible read %ld start %ld\n",readblk,pCMD->blnr);
+ if(readblk>blocks) /* is end within 1st track */
+ readblk=blocks; /* yes, correct it */
+ PRINTF("we read %ld blocks start %ld\n",readblk,pCMD->blnr);
+ bufferw=&buffer[0]; /* setup working buffer */
+ do {
+retryrw:
+ len=sect_size * readblk;
+ pCMD->cmd[COMMAND]=FDC_CMD_READ;
+ if(fdc_issue_cmd(pCMD,pFG)==FALSE) {
+ stop_fdc_drive(pCMD);
+ enable_interrupts();
+ return FALSE;
+ }
+ for (i=0;i<len;i++) {
+ timeout=FDC_TIME_OUT;
+ do {
+ c=read_fdc_reg(FDC_MSR);
+ if((c&0xC0)==0xC0) {
+ bufferw[i]=read_fdc_reg(FDC_FIFO);
+ break;
+ }
+ if((c&0xC0)==0x80) { /* output */
+ PRINTF("Transfer error transfered: at %ld, MSR=%02X\n",i,c);
+ if(i>6) {
+ for(ii=0;ii<7;ii++) {
+ pCMD->result[ii]=bufferw[(i-7+ii)];
+ } /* for */
+ }
+ if(retriesrw++>FDC_RW_RETRIES) {
+ if (retriescal++>FDC_CAL_RETRIES) {
+ stop_fdc_drive(pCMD);
+ enable_interrupts();
+ return FALSE;
+ }
+ else {
+ PRINTF(" trying to recalibrate Try %d\n",retriescal);
+ if(fdc_recalibrate(pCMD,pFG)==FALSE) {
+ stop_fdc_drive(pCMD);
+ enable_interrupts();
+ return FALSE;
+ }
+ retriesrw=0;
+ goto retrycal;
+ } /* else >FDC_CAL_RETRIES */
+ }
+ else {
+ PRINTF("Read retry %d\n",retriesrw);
+ goto retryrw;
+ } /* else >FDC_RW_RETRIES */
+ }/* if output */
+ timeout--;
+ }while(TRUE);
+ } /* for len */
+ /* the last sector of a track or all data has been read,
+ * we need to get the results */
+ fdc_terminate(pCMD);
+ offset+=(sect_size*readblk); /* set up buffer pointer */
+ bufferw=&buffer[offset];
+ pCMD->blnr+=readblk; /* update current block nr */
+ blocks-=readblk; /* update blocks */
+ if(blocks==0)
+ break; /* we are finish */
+ /* setup new read blocks */
+ /* readblk=pFG->head*pFG->sect; */
+ readblk=pFG->sect;
+ if(readblk>blocks)
+ readblk=blocks;
+retrycal:
+ /* a seek is necessary */
+ if(fdc_seek(pCMD,pFG)==FALSE) {
+ stop_fdc_drive(pCMD);
+ enable_interrupts();
+ return FALSE;
+ }
+ if((pCMD->result[STATUS_0]&0x20)!=0x20) {
+ PRINTF("Seek error Status: %02X\n",pCMD->result[STATUS_0]);
+ stop_fdc_drive(pCMD);
+ return FALSE;
+ }
+ pcn=pCMD->result[STATUS_PCN]; /* current track */
+ }while(TRUE); /* start over */
+ stop_fdc_drive(pCMD); /* switch off drive */
+ enable_interrupts();
+ return TRUE;
+}
+
+/* Scan all drives and check if drive is present and disk is inserted */
+int fdc_check_drive(FDC_COMMAND_STRUCT *pCMD, FD_GEO_STRUCT *pFG)
+{
+ int i,drives,state;
+ /* OK procedure of data book is satisfied.
+ * trying to get some information over the drives */
+ state=0; /* no drives, no disks */
+ for(drives=0;drives<4;drives++) {
+ pCMD->drive=drives;
+ select_fdc_drive(pCMD);
+ pCMD->blnr=0; /* set to the 1st block */
+ if(fdc_recalibrate(pCMD,pFG)==FALSE)
+ break;
+ if((pCMD->result[STATUS_0]&0x10)==0x10)
+ break;
+ /* ok drive connected check for disk */
+ state|=(1<<drives);
+ pCMD->blnr=pFG->size; /* set to the last block */
+ if(fdc_seek(pCMD,pFG)==FALSE)
+ break;
+ pCMD->blnr=0; /* set to the 1st block */
+ if(fdc_recalibrate(pCMD,pFG)==FALSE)
+ break;
+ pCMD->cmd[COMMAND]=FDC_CMD_READ_ID;
+ if(fdc_issue_cmd(pCMD,pFG)==FALSE)
+ break;
+ state|=(0x10<<drives);
+ }
+ stop_fdc_drive(pCMD);
+ for(i=0;i<4;i++) {
+ PRINTF("Floppy Drive %d %sconnected %sDisk inserted %s\n",i,
+ ((state&(1<<i))==(1<<i)) ? "":"not ",
+ ((state&(0x10<<i))==(0x10<<i)) ? "":"no ",
+ ((state&(0x10<<i))==(0x10<<i)) ? pFG->name : "");
+ }
+ pCMD->flags=state;
+ return TRUE;
+}
+
+
+/**************************************************************************
+* int fdc_setup
+* setup the fdc according the datasheet
+* assuming in PS2 Mode
+*/
+int fdc_setup(FDC_COMMAND_STRUCT *pCMD, FD_GEO_STRUCT *pFG)
+{
+
+ int i;
+ /* first, we reset the FDC via the DOR */
+ write_fdc_reg(FDC_DOR,0x00);
+ for(i=0; i<255; i++) /* then we wait some time */
+ udelay(500);
+ /* then, we clear the reset in the DOR */
+ pCMD->drive=0;
+ select_fdc_drive(pCMD);
+ /* initialize the CCR */
+ write_fdc_reg(FDC_CCR,pFG->rate);
+ /* then initialize the DSR */
+ write_fdc_reg(FDC_DSR,pFG->rate);
+ if(wait_for_fdc_int()==FALSE) {
+ PRINTF("Time Out after writing CCR\n");
+ return FALSE;
+ }
+ /* now issue sense Interrupt and status command
+ * assuming only one drive present (drive 0) */
+ pCMD->dma=0; /* we don't use any dma at all */
+ for(i=0;i<4;i++) {
+ /* issue sense interrupt for all 4 possible drives */
+ pCMD->cmd[COMMAND]=FDC_CMD_SENSE_INT;
+ if(fdc_issue_cmd(pCMD,pFG)==FALSE) {
+ PRINTF("Sense Interrupt for drive %d failed\n",i);
+ }
+ }
+ /* assuming drive 0 for rest of configuration
+ * issue the configure command */
+ pCMD->drive=0;
+ select_fdc_drive(pCMD);
+ pCMD->cmd[COMMAND]=FDC_CMD_CONFIGURE;
+ if(fdc_issue_cmd(pCMD,pFG)==FALSE) {
+ PRINTF(" configure timeout\n");
+ stop_fdc_drive(pCMD);
+ return FALSE;
+ }
+ /* issue specify command */
+ pCMD->cmd[COMMAND]=FDC_CMD_SPECIFY;
+ if(fdc_issue_cmd(pCMD,pFG)==FALSE) {
+ PRINTF(" specify timeout\n");
+ stop_fdc_drive(pCMD);
+ return FALSE;
+
+ }
+ /* then, we clear the reset in the DOR */
+ /* fdc_check_drive(pCMD,pFG); */
+ /* write_fdc_reg(FDC_DOR,0x04); */
+ return TRUE;
+}
+
+/****************************************************************************
+ * main routine do_fdcboot
+ */
+int do_fdcboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ FD_GEO_STRUCT *pFG = (FD_GEO_STRUCT *)floppy_type;
+ FDC_COMMAND_STRUCT *pCMD = &cmd;
+ unsigned long addr,imsize;
+ image_header_t *hdr; /* used for fdc boot */
+ unsigned char boot_drive;
+ int i,nrofblk;
+ char *ep;
+ int rcode = 0;
+
+ switch (argc) {
+ case 1:
+ addr = CFG_LOAD_ADDR;
+ boot_drive=0; /* default boot from drive 0 */
+ break;
+ case 2:
+ addr = simple_strtoul(argv[1], NULL, 16);
+ boot_drive=0; /* default boot from drive 0 */
+ break;
+ case 3:
+ addr = simple_strtoul(argv[1], NULL, 16);
+ boot_drive=simple_strtoul(argv[2], NULL, 10);
+ break;
+ default:
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+ /* setup FDC and scan for drives */
+ if(fdc_setup(pCMD,pFG)==FALSE) {
+ printf("\n** Error in setup FDC **\n");
+ return 1;
+ }
+ if(fdc_check_drive(pCMD,pFG)==FALSE) {
+ printf("\n** Error in check_drives **\n");
+ return 1;
+ }
+ if((pCMD->flags&(1<<boot_drive))==0) {
+ /* drive not available */
+ printf("\n** Drive %d not availabe **\n",boot_drive);
+ return 1;
+ }
+ if((pCMD->flags&(0x10<<boot_drive))==0) {
+ /* no disk inserted */
+ printf("\n** No disk inserted in drive %d **\n",boot_drive);
+ return 1;
+ }
+ /* ok, we have a valid source */
+ pCMD->drive=boot_drive;
+ /* read first block */
+ pCMD->blnr=0;
+ if(fdc_read_data((unsigned char *)addr,1,pCMD,pFG)==FALSE) {
+ printf("\nRead error:");
+ for(i=0;i<7;i++)
+ printf("result%d: 0x%02X\n",i,pCMD->result[i]);
+ return 1;
+ }
+ hdr = (image_header_t *)addr;
+ if (hdr->ih_magic != IH_MAGIC) {
+ printf ("Bad Magic Number\n");
+ return 1;
+ }
+ print_image_hdr(hdr);
+
+ imsize= hdr->ih_size+sizeof(image_header_t);
+ nrofblk=imsize/512;
+ if((imsize%512)>0)
+ nrofblk++;
+ printf("Loading %ld Bytes (%d blocks) at 0x%08lx..\n",imsize,nrofblk,addr);
+ pCMD->blnr=0;
+ if(fdc_read_data((unsigned char *)addr,nrofblk,pCMD,pFG)==FALSE) {
+ /* read image block */
+ printf("\nRead error:");
+ for(i=0;i<7;i++)
+ printf("result%d: 0x%02X\n",i,pCMD->result[i]);
+ return 1;
+ }
+ printf("OK %ld Bytes loaded.\n",imsize);
+
+ flush_cache (addr, imsize);
+ /* Loading ok, update default load address */
+
+ load_addr = addr;
+ if(hdr->ih_type == IH_TYPE_KERNEL) {
+ /* Check if we should attempt an auto-start */
+ if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
+ char *local_args[2];
+ extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
+
+ local_args[0] = argv[0];
+ local_args[1] = NULL;
+
+ printf ("Automatic boot of image at addr 0x%08lX ...\n", addr);
+
+ do_bootm (cmdtp, 0, 1, local_args);
+ rcode ++;
+ }
+ }
+ return rcode;
+}
+
+
+
+#endif /* CONFIG_COMMANDS & CFG_CMD_FDC */
+
+
--- /dev/null
+/*
+ * (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
+ */
+
+/*
+ * Memory Functions
+ *
+ * Copied from FADS ROM, Dan Malek (dmalek@jlc.net)
+ */
+
+#include <common.h>
+#include <command.h>
+#include <cmd_mem.h>
+
+#if (CONFIG_COMMANDS & (CFG_CMD_MEMORY | CFG_CMD_PCI | CFG_CMD_I2C))
+int cmd_get_data_size(char* arg, int default_size)
+{
+ /* Check for a size specification .b, .w or .l.
+ */
+ int len = strlen(arg);
+ if (len > 2 && arg[len-2] == '.') {
+ switch(arg[len-1]) {
+ case 'b':
+ return 1;
+ case 'w':
+ return 2;
+ case 'l':
+ return 4;
+ }
+ }
+ return default_size;
+}
+#endif
+
+#if (CONFIG_COMMANDS & CFG_CMD_MEMORY)
+
+#ifdef CMD_MEM_DEBUG
+#define PRINTF(fmt,args...) printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+static int mod_mem(cmd_tbl_t *, int, int, int, char *[]);
+
+/* Display values from last command.
+ * Memory modify remembered values are different from display memory.
+ */
+uint dp_last_addr, dp_last_size;
+uint dp_last_length = 0x40;
+uint mm_last_addr, mm_last_size;
+
+static ulong base_address = 0;
+
+/* Memory Display
+ *
+ * Syntax:
+ * md{.b, .w, .l} {addr} {len}
+ */
+#define DISP_LINE_LEN 16
+int do_mem_md ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ ulong addr, size, length;
+ ulong i, nbytes, linebytes;
+ u_char *cp;
+ int rc = 0;
+
+ /* We use the last specified parameters, unless new ones are
+ * entered.
+ */
+ addr = dp_last_addr;
+ size = dp_last_size;
+ length = dp_last_length;
+
+ if (argc < 2) {
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+ if ((flag & CMD_FLAG_REPEAT) == 0) {
+ /* New command specified. Check for a size specification.
+ * Defaults to long if no or incorrect specification.
+ */
+ size = cmd_get_data_size(argv[0], 4);
+
+ /* Address is specified since argc > 1
+ */
+ addr = simple_strtoul(argv[1], NULL, 16);
+ addr += base_address;
+
+ /* If another parameter, it is the length to display.
+ * Length is the number of objects, not number of bytes.
+ */
+ if (argc > 2)
+ length = simple_strtoul(argv[2], NULL, 16);
+ }
+
+ /* Print the lines.
+ *
+ * We buffer all read data, so we can make sure data is read only
+ * once, and all accesses are with the specified bus width.
+ */
+ nbytes = length * size;
+ do {
+ char linebuf[DISP_LINE_LEN];
+ uint *uip = (uint *)linebuf;
+ ushort *usp = (ushort *)linebuf;
+ u_char *ucp = (u_char *)linebuf;
+
+ printf("%08lx:", addr);
+ linebytes = (nbytes>DISP_LINE_LEN)?DISP_LINE_LEN:nbytes;
+ for (i=0; i<linebytes; i+= size) {
+ if (size == 4) {
+ printf(" %08x", (*uip++ = *((uint *)addr)));
+ } else if (size == 2) {
+ printf(" %04x", (*usp++ = *((ushort *)addr)));
+ } else {
+ printf(" %02x", (*ucp++ = *((u_char *)addr)));
+ }
+ addr += size;
+ }
+ printf(" ");
+ cp = linebuf;
+ for (i=0; i<linebytes; i++) {
+ if ((*cp < 0x20) || (*cp > 0x7e))
+ printf(".");
+ else
+ printf("%c", *cp);
+ cp++;
+ }
+ printf("\n");
+ nbytes -= linebytes;
+ if (ctrlc()) {
+ rc = 1;
+ break;
+ }
+ } while (nbytes > 0);
+
+ dp_last_addr = addr;
+ dp_last_length = length;
+ dp_last_size = size;
+ return (rc);
+}
+
+int do_mem_mm ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ return mod_mem (cmdtp, 1, flag, argc, argv);
+}
+int do_mem_nm ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ return mod_mem (cmdtp, 0, flag, argc, argv);
+}
+
+int do_mem_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ ulong addr, size, writeval, count;
+
+ if ((argc < 3) || (argc > 4)) {
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+ /* Check for size specification.
+ */
+ size = cmd_get_data_size(argv[0], 4);
+
+ /* Address is specified since argc > 1
+ */
+ addr = simple_strtoul(argv[1], NULL, 16);
+ addr += base_address;
+
+ /* Get the value to write.
+ */
+ writeval = simple_strtoul(argv[2], NULL, 16);
+
+ /* Count ? */
+ if (argc == 4) {
+ count = simple_strtoul(argv[3], NULL, 16);
+ } else {
+ count = 1;
+ }
+
+ while (count-- > 0) {
+ if (size == 4)
+ *((ulong *)addr) = (ulong )writeval;
+ else if (size == 2)
+ *((ushort *)addr) = (ushort)writeval;
+ else
+ *((u_char *)addr) = (u_char)writeval;
+ addr += size;
+ }
+ return 0;
+}
+
+int do_mem_cmp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ ulong size, addr1, addr2, count, ngood;
+ int rcode = 0;
+
+ if (argc != 4) {
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+ /* Check for size specification.
+ */
+ size = cmd_get_data_size(argv[0], 4);
+
+ addr1 = simple_strtoul(argv[1], NULL, 16);
+ addr1 += base_address;
+
+ addr2 = simple_strtoul(argv[2], NULL, 16);
+ addr2 += base_address;
+
+ count = simple_strtoul(argv[3], NULL, 16);
+
+ ngood = 0;
+
+ while (count-- > 0) {
+ if (size == 4) {
+ ulong word1 = *(ulong *)addr1;
+ ulong word2 = *(ulong *)addr2;
+ if (word1 != word2) {
+ printf("word at 0x%08lx (0x%08lx) "
+ "!= word at 0x%08lx (0x%08lx)\n",
+ addr1, word1, addr2, word2);
+ rcode = 1;
+ break;
+ }
+ }
+ else if (size == 2) {
+ ushort hword1 = *(ushort *)addr1;
+ ushort hword2 = *(ushort *)addr2;
+ if (hword1 != hword2) {
+ printf("halfword at 0x%08lx (0x%04x) "
+ "!= halfword at 0x%08lx (0x%04x)\n",
+ addr1, hword1, addr2, hword2);
+ rcode = 1;
+ break;
+ }
+ }
+ else {
+ u_char byte1 = *(u_char *)addr1;
+ u_char byte2 = *(u_char *)addr2;
+ if (byte1 != byte2) {
+ printf("byte at 0x%08lx (0x%02x) "
+ "!= byte at 0x%08lx (0x%02x)\n",
+ addr1, byte1, addr2, byte2);
+ rcode = 1;
+ break;
+ }
+ }
+ ngood++;
+ addr1 += size;
+ addr2 += size;
+ }
+
+ printf("Total of %ld %s%s were the same\n",
+ ngood, size == 4 ? "word" : size == 2 ? "halfword" : "byte",
+ ngood == 1 ? "" : "s");
+ return rcode;
+}
+
+int do_mem_cp ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ ulong addr, size, dest, count;
+
+ if (argc != 4) {
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+ /* Check for size specification.
+ */
+ size = cmd_get_data_size(argv[0], 4);
+
+ addr = simple_strtoul(argv[1], NULL, 16);
+ addr += base_address;
+
+ dest = simple_strtoul(argv[2], NULL, 16);
+ dest += base_address;
+
+ count = simple_strtoul(argv[3], NULL, 16);
+
+ if (count == 0) {
+ puts ("Zero length ???\n");
+ return 1;
+ }
+
+#ifndef CFG_NO_FLASH
+ /* check if we are copying to Flash */
+ if (addr2info(dest) != NULL) {
+ int rc;
+
+ printf ("Copy to Flash... ");
+
+ rc = flash_write ((uchar *)addr, dest, count*size);
+ if (rc != 0) {
+ flash_perror (rc);
+ return (1);
+ }
+ puts ("done\n");
+ return 0;
+ }
+#endif
+
+ while (count-- > 0) {
+ if (size == 4)
+ *((ulong *)dest) = *((ulong *)addr);
+ else if (size == 2)
+ *((ushort *)dest) = *((ushort *)addr);
+ else
+ *((u_char *)dest) = *((u_char *)addr);
+ addr += size;
+ dest += size;
+ }
+ return 0;
+}
+
+int do_mem_base (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ if (argc > 1) {
+ /* Set new base address.
+ */
+ base_address = simple_strtoul(argv[1], NULL, 16);
+ }
+ /* Print the current base address.
+ */
+ printf("Base Address: 0x%08lx\n", base_address);
+ return 0;
+}
+
+int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ ulong addr, size, length, i, junk;
+ volatile uint *longp;
+ volatile ushort *shortp;
+ volatile u_char *cp;
+
+ if (argc < 3) {
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+ /* Check for a size spefication.
+ * Defaults to long if no or incorrect specification.
+ */
+ size = cmd_get_data_size(argv[0], 4);
+
+ /* Address is always specified.
+ */
+ addr = simple_strtoul(argv[1], NULL, 16);
+
+ /* Length is the number of objects, not number of bytes.
+ */
+ length = simple_strtoul(argv[2], NULL, 16);
+
+ /* We want to optimize the loops to run as fast as possible.
+ * If we have only one object, just run infinite loops.
+ */
+ if (length == 1) {
+ if (size == 4) {
+ longp = (uint *)addr;
+ for (;;)
+ i = *longp;
+ }
+ if (size == 2) {
+ shortp = (ushort *)addr;
+ for (;;)
+ i = *shortp;
+ }
+ cp = (u_char *)addr;
+ for (;;)
+ i = *cp;
+ }
+
+ if (size == 4) {
+ for (;;) {
+ longp = (uint *)addr;
+ i = length;
+ while (i-- > 0)
+ junk = *longp++;
+ }
+ }
+ if (size == 2) {
+ for (;;) {
+ shortp = (ushort *)addr;
+ i = length;
+ while (i-- > 0)
+ junk = *shortp++;
+ }
+ }
+ for (;;) {
+ cp = (u_char *)addr;
+ i = length;
+ while (i-- > 0)
+ junk = *cp++;
+ }
+}
+
+/*
+ * Perform a memory test. A more complete alternative test can be
+ * configured using CFG_ALT_MEMTEST. The complete test loops until
+ * interrupted by ctrl-c or by a failure of one of the sub-tests.
+ */
+int do_mem_mtest (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ vu_long *addr, *start, *end;
+ ulong val;
+ ulong readback;
+
+#if defined(CFG_ALT_MEMTEST)
+ vu_long addr_mask;
+ vu_long offset;
+ vu_long test_offset;
+ vu_long pattern;
+ vu_long temp;
+ vu_long anti_pattern;
+ vu_long num_words;
+ vu_long *dummy = NULL;
+ int j;
+ int iterations = 1;
+
+ static const ulong bitpattern[] = {
+ 0x00000001, /* single bit */
+ 0x00000003, /* two adjacent bits */
+ 0x00000007, /* three adjacent bits */
+ 0x0000000F, /* four adjacent bits */
+ 0x00000005, /* two non-adjacent bits */
+ 0x00000015, /* three non-adjacent bits */
+ 0x00000055, /* four non-adjacent bits */
+ 0xaaaaaaaa, /* alternating 1/0 */
+ };
+#else
+ ulong incr;
+ ulong pattern;
+ int rcode = 0;
+#endif
+
+ if (argc > 1) {
+ start = (ulong *)simple_strtoul(argv[1], NULL, 16);
+ } else {
+ start = (ulong *)CFG_MEMTEST_START;
+ }
+
+ if (argc > 2) {
+ end = (ulong *)simple_strtoul(argv[2], NULL, 16);
+ } else {
+ end = (ulong *)(CFG_MEMTEST_END);
+ }
+
+ if (argc > 3) {
+ pattern = (ulong)simple_strtoul(argv[3], NULL, 16);
+ } else {
+ pattern = 0;
+ }
+
+#if defined(CFG_ALT_MEMTEST)
+ printf ("Testing %08x ... %08x:\n", (uint)start, (uint)end);
+ PRINTF("%s:%d: start 0x%p end 0x%p\n",
+ __FUNCTION__, __LINE__, start, end);
+
+ for (;;) {
+ if (ctrlc()) {
+ putc ('\n');
+ return 1;
+ }
+
+ printf("Iteration: %6d\r", iterations);
+ PRINTF("Iteration: %6d\n", iterations);
+ iterations++;
+
+ /*
+ * Data line test: write a pattern to the first
+ * location, write the 1's complement to a 'parking'
+ * address (changes the state of the data bus so a
+ * floating bus doen't give a false OK), and then
+ * read the value back. Note that we read it back
+ * into a variable because the next time we read it,
+ * it might be right (been there, tough to explain to
+ * the quality guys why it prints a failure when the
+ * "is" and "should be" are obviously the same in the
+ * error message).
+ *
+ * Rather than exhaustively testing, we test some
+ * patterns by shifting '1' bits through a field of
+ * '0's and '0' bits through a field of '1's (i.e.
+ * pattern and ~pattern).
+ */
+ addr = start;
+ for (j = 0; j < sizeof(bitpattern)/sizeof(bitpattern[0]); j++) {
+ val = bitpattern[j];
+ for(; val != 0; val <<= 1) {
+ *addr = val;
+ *dummy = ~val; /* clear the test data off of the bus */
+ readback = *addr;
+ if(readback != val) {
+ printf ("FAILURE (data line): "
+ "expected %08lx, actual %08lx\n",
+ val, readback);
+ }
+ *addr = ~val;
+ *dummy = val;
+ readback = *addr;
+ if(readback != ~val) {
+ printf ("FAILURE (data line): "
+ "Is %08lx, should be %08lx\n",
+ val, readback);
+ }
+ }
+ }
+
+ /*
+ * Based on code whose Original Author and Copyright
+ * information follows: Copyright (c) 1998 by Michael
+ * Barr. This software is placed into the public
+ * domain and may be used for any purpose. However,
+ * this notice must not be changed or removed and no
+ * warranty is either expressed or implied by its
+ * publication or distribution.
+ */
+
+ /*
+ * Address line test
+ *
+ * Description: Test the address bus wiring in a
+ * memory region by performing a walking
+ * 1's test on the relevant bits of the
+ * address and checking for aliasing.
+ * This test will find single-bit
+ * address failures such as stuck -high,
+ * stuck-low, and shorted pins. The base
+ * address and size of the region are
+ * selected by the caller.
+ *
+ * Notes: For best results, the selected base
+ * address should have enough LSB 0's to
+ * guarantee single address bit changes.
+ * For example, to test a 64-Kbyte
+ * region, select a base address on a
+ * 64-Kbyte boundary. Also, select the
+ * region size as a power-of-two if at
+ * all possible.
+ *
+ * Returns: 0 if the test succeeds, 1 if the test fails.
+ *
+ * ## NOTE ## Be sure to specify start and end
+ * addresses such that addr_mask has
+ * lots of bits set. For example an
+ * address range of 01000000 02000000 is
+ * bad while a range of 01000000
+ * 01ffffff is perfect.
+ */
+ addr_mask = ((ulong)end - (ulong)start)/sizeof(vu_long);
+ pattern = (vu_long) 0xaaaaaaaa;
+ anti_pattern = (vu_long) 0x55555555;
+
+ PRINTF("%s:%d: addr mask = 0x%.8lx\n",
+ __FUNCTION__, __LINE__,
+ addr_mask);
+ /*
+ * Write the default pattern at each of the
+ * power-of-two offsets.
+ */
+ for (offset = 1; (offset & addr_mask) != 0; offset <<= 1) {
+ start[offset] = pattern;
+ }
+
+ /*
+ * Check for address bits stuck high.
+ */
+ test_offset = 0;
+ start[test_offset] = anti_pattern;
+
+ for (offset = 1; (offset & addr_mask) != 0; offset <<= 1) {
+ temp = start[offset];
+ if (temp != pattern) {
+ printf ("\nFAILURE: Address bit stuck high @ 0x%.8lx:"
+ " expected 0x%.8lx, actual 0x%.8lx\n",
+ (ulong)&start[offset], pattern, temp);
+ return 1;
+ }
+ }
+ start[test_offset] = pattern;
+
+ /*
+ * Check for addr bits stuck low or shorted.
+ */
+ for (test_offset = 1; (test_offset & addr_mask) != 0; test_offset <<= 1) {
+ start[test_offset] = anti_pattern;
+
+ for (offset = 1; (offset & addr_mask) != 0; offset <<= 1) {
+ temp = start[offset];
+ if ((temp != pattern) && (offset != test_offset)) {
+ printf ("\nFAILURE: Address bit stuck low or shorted @"
+ " 0x%.8lx: expected 0x%.8lx, actual 0x%.8lx\n",
+ (ulong)&start[offset], pattern, temp);
+ return 1;
+ }
+ }
+ start[test_offset] = pattern;
+ }
+
+ /*
+ * Description: Test the integrity of a physical
+ * memory device by performing an
+ * increment/decrement test over the
+ * entire region. In the process every
+ * storage bit in the device is tested
+ * as a zero and a one. The base address
+ * and the size of the region are
+ * selected by the caller.
+ *
+ * Returns: 0 if the test succeeds, 1 if the test fails.
+ */
+ num_words = ((ulong)end - (ulong)start)/sizeof(vu_long) + 1;
+
+ /*
+ * Fill memory with a known pattern.
+ */
+ for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
+ start[offset] = pattern;
+ }
+
+ /*
+ * Check each location and invert it for the second pass.
+ */
+ for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
+ temp = start[offset];
+ if (temp != pattern) {
+ printf ("\nFAILURE (read/write) @ 0x%.8lx:"
+ " expected 0x%.8lx, actual 0x%.8lx)\n",
+ (ulong)&start[offset], pattern, temp);
+ return 1;
+ }
+
+ anti_pattern = ~pattern;
+ start[offset] = anti_pattern;
+ }
+
+ /*
+ * Check each location for the inverted pattern and zero it.
+ */
+ for (pattern = 1, offset = 0; offset < num_words; pattern++, offset++) {
+ anti_pattern = ~pattern;
+ temp = start[offset];
+ if (temp != anti_pattern) {
+ printf ("\nFAILURE (read/write): @ 0x%.8lx:"
+ " expected 0x%.8lx, actual 0x%.8lx)\n",
+ (ulong)&start[offset], anti_pattern, temp);
+ return 1;
+ }
+ start[offset] = 0;
+ }
+ }
+
+#else /* The original, quickie test */
+ incr = 1;
+ for (;;) {
+ if (ctrlc()) {
+ putc ('\n');
+ return 1;
+ }
+
+ printf ("\rPattern %08lX Writing..."
+ "%12s"
+ "\b\b\b\b\b\b\b\b\b\b",
+ pattern, "");
+
+ for (addr=start,val=pattern; addr<end; addr++) {
+ *addr = val;
+ val += incr;
+ }
+
+ printf("Reading...");
+
+ for (addr=start,val=pattern; addr<end; addr++) {
+ readback = *addr;
+ if (readback != val) {
+ printf ("\nMem error @ 0x%08X: "
+ "found %08lX, expected %08lX\n",
+ (uint)addr, readback, val);
+ rcode = 1;
+ }
+ val += incr;
+ }
+
+ /*
+ * Flip the pattern each time to make lots of zeros and
+ * then, the next time, lots of ones. We decrement
+ * the "negative" patterns and increment the "positive"
+ * patterns to preserve this feature.
+ */
+ if(pattern & 0x80000000) {
+ pattern = -pattern; /* complement & increment */
+ }
+ else {
+ pattern = ~pattern;
+ }
+ incr = -incr;
+ }
+ return rcode;
+#endif
+}
+
+
+/* Modify memory.
+ *
+ * Syntax:
+ * mm{.b, .w, .l} {addr}
+ * nm{.b, .w, .l} {addr}
+ */
+static int
+mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char *argv[])
+{
+ ulong addr, size, i;
+ int nbytes;
+ extern char console_buffer[];
+
+ if (argc != 2) {
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+#ifdef CONFIG_BOOT_RETRY_TIME
+ reset_cmd_timeout(); /* got a good command to get here */
+#endif
+ /* We use the last specified parameters, unless new ones are
+ * entered.
+ */
+ addr = mm_last_addr;
+ size = mm_last_size;
+
+ if ((flag & CMD_FLAG_REPEAT) == 0) {
+ /* New command specified. Check for a size specification.
+ * Defaults to long if no or incorrect specification.
+ */
+ size = cmd_get_data_size(argv[0], 4);
+
+ /* Address is specified since argc > 1
+ */
+ addr = simple_strtoul(argv[1], NULL, 16);
+ addr += base_address;
+ }
+
+ /* Print the address, followed by value. Then accept input for
+ * the next value. A non-converted value exits.
+ */
+ do {
+ printf("%08lx:", addr);
+ if (size == 4)
+ printf(" %08x", *((uint *)addr));
+ else if (size == 2)
+ printf(" %04x", *((ushort *)addr));
+ else
+ printf(" %02x", *((u_char *)addr));
+
+ nbytes = readline (" ? ");
+ if (nbytes == 0 || (nbytes == 1 && console_buffer[0] == '-')) {
+ /* <CR> pressed as only input, don't modify current
+ * location and move to next. "-" pressed will go back.
+ */
+ if (incrflag)
+ addr += nbytes ? -size : size;
+ nbytes = 1;
+#ifdef CONFIG_BOOT_RETRY_TIME
+ reset_cmd_timeout(); /* good enough to not time out */
+#endif
+ }
+#ifdef CONFIG_BOOT_RETRY_TIME
+ else if (nbytes == -2) {
+ break; /* timed out, exit the command */
+ }
+#endif
+ else {
+ char *endp;
+ i = simple_strtoul(console_buffer, &endp, 16);
+ nbytes = endp - console_buffer;
+ if (nbytes) {
+#ifdef CONFIG_BOOT_RETRY_TIME
+ /* good enough to not time out
+ */
+ reset_cmd_timeout();
+#endif
+ if (size == 4)
+ *((uint *)addr) = i;
+ else if (size == 2)
+ *((ushort *)addr) = i;
+ else
+ *((u_char *)addr) = i;
+ if (incrflag)
+ addr += size;
+ }
+ }
+ } while (nbytes);
+
+ mm_last_addr = addr;
+ mm_last_size = size;
+ return 0;
+}
+
+int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ ulong addr, length;
+ ulong crc;
+ ulong *ptr;
+
+ if (argc < 3) {
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+ addr = simple_strtoul(argv[1], NULL, 16);
+ addr += base_address;
+
+ length = simple_strtoul(argv[2], NULL, 16);
+
+ crc = crc32 (0, (const uchar *)addr, length);
+
+ printf ("CRC32 for %08lx ... %08lx ==> %08lx\n",
+ addr, addr + length -1, crc);
+
+ if (argc > 3)
+ {
+ ptr = (ulong *)simple_strtoul(argv[3], NULL, 16);
+ *ptr = crc;
+ }
+
+ return 0;
+}
+
+#endif /* CFG_CMD_MEMORY */
--- /dev/null
+/*
+ * (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 */
--- /dev/null
+/*
+ * (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 */
projects / u-boot / commitdiff