/*
- * (C) Copyright 2000-2002
+ * (C) Copyright 2000-2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
- * Boot support
+ * Misc boot support
*/
#include <common.h>
#include <command.h>
-#include <cmd_boot.h>
-#include <cmd_autoscript.h>
-#include <s_record.h>
#include <net.h>
-#include <syscall.h>
-
-
-#if (CONFIG_COMMANDS & CFG_CMD_LOADS)
-static ulong load_serial (ulong offset);
-static int read_record (char *buf, ulong len);
-# if (CONFIG_COMMANDS & CFG_CMD_SAVES)
-static int save_serial (ulong offset, ulong size);
-static int write_record (char *buf);
-# endif /* CFG_CMD_SAVES */
-
-static int do_echo = 1;
-#endif /* CFG_CMD_LOADS */
-
-
-#if (CONFIG_COMMANDS & CFG_CMD_BDI)
-static void print_num(const char *, ulong);
-
-#ifndef CONFIG_ARM /* PowerPC and other */
-
-#ifdef CONFIG_PPC
-static void print_str(const char *, const char *);
-
-int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
- DECLARE_GLOBAL_DATA_PTR;
-
- int i;
- bd_t *bd = gd->bd;
- char buf[32];
-
-#ifdef DEBUG
- print_num ("bd address", (ulong)bd );
-#endif
- print_num ("memstart", bd->bi_memstart );
- print_num ("memsize", bd->bi_memsize );
- print_num ("flashstart", bd->bi_flashstart );
- print_num ("flashsize", bd->bi_flashsize );
- print_num ("flashoffset", bd->bi_flashoffset );
- print_num ("sramstart", bd->bi_sramstart );
- print_num ("sramsize", bd->bi_sramsize );
-#if defined(CONFIG_8xx) || defined(CONFIG_8260)
- print_num ("immr_base", bd->bi_immr_base );
-#endif
- print_num ("bootflags", bd->bi_bootflags );
-#if defined(CONFIG_405GP) || defined(CONFIG_405CR)
- print_str ("procfreq", strmhz(buf, bd->bi_procfreq));
- print_str ("plb_busfreq", strmhz(buf, bd->bi_plb_busfreq));
-#if defined(CONFIG_405GP)
- print_str ("pci_busfreq", strmhz(buf, bd->bi_pci_busfreq));
-#endif
-#else
-#if defined(CONFIG_8260)
- print_str ("vco", strmhz(buf, bd->bi_vco));
- print_str ("sccfreq", strmhz(buf, bd->bi_sccfreq));
- print_str ("brgfreq", strmhz(buf, bd->bi_brgfreq));
-#endif
- print_str ("intfreq", strmhz(buf, bd->bi_intfreq));
-#if defined(CONFIG_8260)
- print_str ("cpmfreq", strmhz(buf, bd->bi_cpmfreq));
-#endif
- print_str ("busfreq", strmhz(buf, bd->bi_busfreq));
-#endif /* defined(CONFIG_405GP) || defined(CONFIG_405CR) */
- printf ("ethaddr =");
- for (i=0; i<6; ++i) {
- printf ("%c%02X", i ? ':' : ' ', bd->bi_enetaddr[i]);
- }
-#ifdef CONFIG_PN62
- printf ("\neth1addr =");
- for (i=0; i<6; ++i) {
- printf ("%c%02X", i ? ':' : ' ', bd->bi_enet1addr[i]);
- }
-#endif /* CONFIG_PN62 */
-#ifdef CONFIG_HERMES
- print_str ("ethspeed", strmhz(buf, bd->bi_ethspeed));
-#endif
- printf ("\nIP addr = "); print_IPaddr (bd->bi_ip_addr);
- printf ("\nbaudrate = %6ld bps\n", bd->bi_baudrate );
- return 0;
-}
-
-#else /* MIPS */
-
-int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
- DECLARE_GLOBAL_DATA_PTR;
-
- int i;
- bd_t *bd = gd->bd;
- print_num ("boot_params", (ulong)bd->bi_boot_params);
- print_num ("memstart", (ulong)bd->bi_memstart);
- print_num ("memsize", (ulong)bd->bi_memsize);
- print_num ("flashstart", (ulong)bd->bi_flashstart);
- print_num ("flashsize", (ulong)bd->bi_flashsize);
- print_num ("flashoffset", (ulong)bd->bi_flashoffset);
+#ifdef CONFIG_CMD_GO
- printf ("ethaddr =");
- for (i=0; i<6; ++i) {
- printf ("%c%02X", i ? ':' : ' ', bd->bi_enetaddr[i]);
- }
- printf ("\nip_addr = ");
- print_IPaddr (bd->bi_ip_addr);
- printf ("\nbaudrate = %d bps\n", bd->bi_baudrate);
-
- return 0;
-}
-#endif /* MIPS */
-
-#else /* ARM */
-
-int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
- DECLARE_GLOBAL_DATA_PTR;
-
- int i;
- bd_t *bd = gd->bd;
-
- print_num ("arch_number", bd->bi_arch_number);
- print_num ("env_t", (ulong)bd->bi_env);
- print_num ("boot_params", (ulong)bd->bi_boot_params);
-
- for (i=0; i<CONFIG_NR_DRAM_BANKS; ++i) {
- printf ("DRAM:%02d.start = %08lX\n",
- i, bd->bi_dram[i].start);
- printf ("DRAM:%02d.size = %08lX\n",
- i, bd->bi_dram[i].size);
- }
-
- printf ("ethaddr =");
- for (i=0; i<6; ++i) {
- printf ("%c%02X", i ? ':' : ' ', bd->bi_enetaddr[i]);
- }
- printf ("\n"
- "ip_addr = ");
- print_IPaddr (bd->bi_ip_addr);
- printf ("\n"
- "baudrate = %d bps\n", bd->bi_baudrate);
-
- return 0;
-}
-
-#endif /* CONFIG_ARM XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */
-
-static void print_num(const char *name, ulong value)
+/* Allow ports to override the default behavior */
+__attribute__((weak))
+unsigned long do_go_exec(ulong (*entry)(int, char * const []), int argc,
+ char * const argv[])
{
- printf ("%-12s= 0x%08lX\n", name, value);
+ return entry (argc, argv);
}
-#ifdef CONFIG_PPC
-static void print_str(const char *name, const char *str)
-{
- printf ("%-12s= %6s MHz\n", name, str);
-}
-#endif /* CONFIG_PPC */
-
-#endif /* CFG_CMD_BDI */
-
-int do_go (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_go(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong addr, rc;
int rcode = 0;
- if (argc < 2) {
- printf ("Usage:\n%s\n", cmdtp->usage);
- return 1;
- }
+ if (argc < 2)
+ return CMD_RET_USAGE;
addr = simple_strtoul(argv[1], NULL, 16);
- printf ("## Starting application at 0x%08lx ...\n", addr);
+ printf ("## Starting application at 0x%08lX ...\n", addr);
/*
* pass address parameter as argv[0] (aka command name),
* and all remaining args
*/
- rc = ((ulong (*)(int, char *[]))addr) (--argc, &argv[1]);
+ rc = do_go_exec ((void *)addr, argc - 1, argv + 1);
if (rc != 0) rcode = 1;
- printf ("## Application terminated, rc = 0x%lx\n", rc);
- return rcode;
-}
-
-#if (CONFIG_COMMANDS & CFG_CMD_LOADS)
-int do_load_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
- ulong offset = 0;
- ulong addr;
- int i;
- char *env_echo;
- int rcode = 0;
-#ifdef CFG_LOADS_BAUD_CHANGE
- DECLARE_GLOBAL_DATA_PTR;
- int load_baudrate, current_baudrate;
-
- load_baudrate = current_baudrate = gd->baudrate;
-#endif
-
- if (((env_echo = getenv("loads_echo")) != NULL) && (*env_echo == '1')) {
- do_echo = 1;
- } else {
- do_echo = 0;
- }
-
-#ifdef CFG_LOADS_BAUD_CHANGE
- if (argc >= 2) {
- offset = simple_strtoul(argv[1], NULL, 16);
- }
- if (argc == 3) {
- load_baudrate = (int)simple_strtoul(argv[2], NULL, 10);
-
- /* default to current baudrate */
- if (load_baudrate == 0)
- load_baudrate = current_baudrate;
- }
-#else /* ! CFG_LOADS_BAUD_CHANGE */
- if (argc == 2) {
- offset = simple_strtoul(argv[1], NULL, 16);
- }
-#endif /* CFG_LOADS_BAUD_CHANGE */
-
-#ifdef CFG_LOADS_BAUD_CHANGE
- if (load_baudrate != current_baudrate) {
- printf ("## Switch baudrate to %d bps and press ENTER ...\n",
- load_baudrate);
- udelay(50000);
- gd->baudrate = load_baudrate;
- serial_setbrg ();
- udelay(50000);
- for (;;) {
- if (getc() == '\r')
- break;
- }
- }
-#endif /* CFG_LOADS_BAUD_CHANGE */
- printf ("## Ready for S-Record download ...\n");
-
- addr = load_serial (offset);
-
- /*
- * Gather any trailing characters (for instance, the ^D which
- * is sent by 'cu' after sending a file), and give the
- * box some time (100 * 1 ms)
- */
- for (i=0; i<100; ++i) {
- if (serial_tstc()) {
- (void) serial_getc();
- }
- udelay(1000);
- }
-
- if (addr == ~0) {
- printf ("## S-Record download aborted\n");
- rcode = 1;
- } else {
- printf ("## Start Addr = 0x%08lx\n", addr);
- load_addr = addr;
- }
-
-#ifdef CFG_LOADS_BAUD_CHANGE
- if (load_baudrate != current_baudrate) {
- printf ("## Switch baudrate to %d bps and press ESC ...\n",
- current_baudrate);
- udelay (50000);
- gd->baudrate = current_baudrate;
- serial_setbrg ();
- udelay (50000);
- for (;;) {
- if (getc() == 0x1B) /* ESC */
- break;
- }
- }
-#endif
- return rcode;
-}
-
-static ulong
-load_serial (ulong offset)
-{
- char record[SREC_MAXRECLEN + 1]; /* buffer for one S-Record */
- char binbuf[SREC_MAXBINLEN]; /* buffer for binary data */
- int binlen; /* no. of data bytes in S-Rec. */
- int type; /* return code for record type */
- ulong addr; /* load address from S-Record */
- ulong size; /* number of bytes transferred */
- char buf[32];
- ulong store_addr;
- ulong start_addr = ~0;
- ulong end_addr = 0;
- int line_count = 0;
-
- while (read_record(record, SREC_MAXRECLEN + 1) >= 0) {
- type = srec_decode (record, &binlen, &addr, binbuf);
-
- if (type < 0) {
- return (~0); /* Invalid S-Record */
- }
-
- switch (type) {
- case SREC_DATA2:
- case SREC_DATA3:
- case SREC_DATA4:
- store_addr = addr + offset;
- if (addr2info(store_addr)) {
- int rc;
-
- rc = flash_write((uchar *)binbuf,store_addr,binlen);
- if (rc != 0) {
- flash_perror (rc);
- return (~0);
- }
- } else {
- memcpy ((char *)(store_addr), binbuf, binlen);
- }
- if ((store_addr) < start_addr)
- start_addr = store_addr;
- if ((store_addr + binlen - 1) > end_addr)
- end_addr = store_addr + binlen - 1;
- break;
- case SREC_END2:
- case SREC_END3:
- case SREC_END4:
- udelay (10000);
- size = end_addr - start_addr + 1;
- printf ("\n"
- "## First Load Addr = 0x%08lX\n"
- "## Last Load Addr = 0x%08lX\n"
- "## Total Size = 0x%08lX = %ld Bytes\n",
- start_addr, end_addr, size, size
- );
- flush_cache (addr, size);
- sprintf(buf, "%lX", size);
- setenv("filesize", buf);
- return (addr);
- case SREC_START:
- break;
- default:
- break;
- }
- if (!do_echo) { /* print a '.' every 100 lines */
- if ((++line_count % 100) == 0)
- putc ('.');
- }
- }
-
- return (~0); /* Download aborted */
-}
-
-static int
-read_record (char *buf, ulong len)
-{
- char *p;
- char c;
-
- --len; /* always leave room for terminating '\0' byte */
-
- for (p=buf; p < buf+len; ++p) {
- c = serial_getc(); /* read character */
- if (do_echo)
- serial_putc (c); /* ... and echo it */
-
- switch (c) {
- case '\r':
- case '\n':
- *p = '\0';
- return (p - buf);
- case '\0':
- case 0x03: /* ^C - Control C */
- return (-1);
- default:
- *p = c;
- }
-
- /* Check for the console hangup (if any different from serial) */
-
- if (syscall_tbl[SYSCALL_GETC] != serial_getc) {
- if (ctrlc()) {
- return (-1);
- }
- }
- }
-
- /* line too long - truncate */
- *p = '\0';
- return (p - buf);
-}
-
-#if (CONFIG_COMMANDS & CFG_CMD_SAVES)
-
-int do_save_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
- ulong offset = 0;
- ulong size = 0;
-#ifdef CFG_LOADS_BAUD_CHANGE
- DECLARE_GLOBAL_DATA_PTR;
- int save_baudrate, current_baudrate;
-
- save_baudrate = current_baudrate = gd->baudrate;
-#endif
-
- if (argc >= 2) {
- offset = simple_strtoul(argv[1], NULL, 16);
- }
-#ifdef CFG_LOADS_BAUD_CHANGE
- if (argc >= 3) {
- size = simple_strtoul(argv[2], NULL, 16);
- }
- if (argc == 4) {
- save_baudrate = (int)simple_strtoul(argv[3], NULL, 10);
-
- /* default to current baudrate */
- if (save_baudrate == 0)
- save_baudrate = current_baudrate;
- }
-#else /* ! CFG_LOADS_BAUD_CHANGE */
- if (argc == 3) {
- size = simple_strtoul(argv[2], NULL, 16);
- }
-#endif /* CFG_LOADS_BAUD_CHANGE */
-
-#ifdef CFG_LOADS_BAUD_CHANGE
- if (save_baudrate != current_baudrate) {
- printf ("## Switch baudrate to %d bps and press ENTER ...\n",
- save_baudrate);
- udelay(50000);
- gd->baudrate = save_baudrate;
- serial_setbrg ();
- udelay(50000);
- for (;;) {
- if (getc() == '\r')
- break;
- }
- }
-#endif /* CFG_LOADS_BAUD_CHANGE */
- printf ("## Ready for S-Record upload, press ENTER to proceed ...\n");
- for (;;) {
- if (getc() == '\r')
- break;
- }
- if(save_serial (offset, size)) {
- printf ("## S-Record upload aborted\n");
- } else {
- printf ("## S-Record upload complete\n");
- }
-#ifdef CFG_LOADS_BAUD_CHANGE
- if (save_baudrate != current_baudrate) {
- printf ("## Switch baudrate to %d bps and press ESC ...\n",
- (int)current_baudrate);
- udelay (50000);
- gd->baudrate = current_baudrate;
- serial_setbrg ();
- udelay (50000);
- for (;;) {
- if (getc() == 0x1B) /* ESC */
- break;
- }
- }
-#endif
- return 0;
-}
-
-#define SREC3_START "S0030000FC\n"
-#define SREC3_FORMAT "S3%02X%08lX%s%02X\n"
-#define SREC3_END "S70500000000FA\n"
-#define SREC_BYTES_PER_RECORD 16
-
-static int save_serial (ulong address, ulong count)
-{
- int i, c, reclen, checksum, length;
- char *hex = "0123456789ABCDEF";
- char record[2*SREC_BYTES_PER_RECORD+16]; /* buffer for one S-Record */
- char data[2*SREC_BYTES_PER_RECORD+1]; /* buffer for hex data */
-
- reclen = 0;
- checksum = 0;
-
- if(write_record(SREC3_START)) /* write the header */
- return (-1);
- do {
- if(count) { /* collect hex data in the buffer */
- c = *(volatile uchar*)(address + reclen); /* get one byte */
- checksum += c; /* accumulate checksum */
- data[2*reclen] = hex[(c>>4)&0x0f];
- data[2*reclen+1] = hex[c & 0x0f];
- data[2*reclen+2] = '\0';
- ++reclen;
- --count;
- }
- if(reclen == SREC_BYTES_PER_RECORD || count == 0) {
- /* enough data collected for one record: dump it */
- if(reclen) { /* build & write a data record: */
- /* address + data + checksum */
- length = 4 + reclen + 1;
-
- /* accumulate length bytes into checksum */
- for(i = 0; i < 2; i++)
- checksum += (length >> (8*i)) & 0xff;
-
- /* accumulate address bytes into checksum: */
- for(i = 0; i < 4; i++)
- checksum += (address >> (8*i)) & 0xff;
-
- /* make proper checksum byte: */
- checksum = ~checksum & 0xff;
-
- /* output one record: */
- sprintf(record, SREC3_FORMAT, length, address, data, checksum);
- if(write_record(record))
- return (-1);
- }
- address += reclen; /* increment address */
- checksum = 0;
- reclen = 0;
- }
- }
- while(count);
- if(write_record(SREC3_END)) /* write the final record */
- return (-1);
- return(0);
-}
-
-static int
-write_record (char *buf)
-{
- char c;
-
- while((c = *buf++))
- serial_putc(c);
-
- /* Check for the console hangup (if any different from serial) */
-
- if (ctrlc()) {
- return (-1);
- }
- return (0);
-}
-# endif /* CFG_CMD_SAVES */
-
-#endif /* CFG_CMD_LOADS */
-
-
-#if (CONFIG_COMMANDS & CFG_CMD_LOADB) /* loadb command (load binary) included */
-
-#define XON_CHAR 17
-#define XOFF_CHAR 19
-#define START_CHAR 0x01
-#define END_CHAR 0x0D
-#define SPACE 0x20
-#define K_ESCAPE 0x23
-#define SEND_TYPE 'S'
-#define DATA_TYPE 'D'
-#define ACK_TYPE 'Y'
-#define NACK_TYPE 'N'
-#define BREAK_TYPE 'B'
-#define tochar(x) ((char) (((x) + SPACE) & 0xff))
-#define untochar(x) ((int) (((x) - SPACE) & 0xff))
-
-extern int os_data_count;
-extern int os_data_header[8];
-
-static void set_kerm_bin_mode(unsigned long *);
-static int k_recv(void);
-static ulong load_serial_bin (ulong offset);
-
-
-char his_eol; /* character he needs at end of packet */
-int his_pad_count; /* number of pad chars he needs */
-char his_pad_char; /* pad chars he needs */
-char his_quote; /* quote chars he'll use */
-
-int do_load_serial_bin (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
- DECLARE_GLOBAL_DATA_PTR;
-
- ulong offset = 0;
- ulong addr;
- int i;
- int load_baudrate, current_baudrate;
- int rcode = 0;
-
- load_baudrate = current_baudrate = gd->baudrate;
-
- if (argc >= 2) {
- offset = simple_strtoul(argv[1], NULL, 16);
- }
- if (argc == 3) {
- load_baudrate = (int)simple_strtoul(argv[2], NULL, 10);
-
- /* default to current baudrate */
- if (load_baudrate == 0)
- load_baudrate = current_baudrate;
- }
-
- if (load_baudrate != current_baudrate) {
- printf ("## Switch baudrate to %d bps and press ENTER ...\n",
- load_baudrate);
- udelay(50000);
- gd->baudrate = load_baudrate;
- serial_setbrg ();
- udelay(50000);
- for (;;) {
- if (getc() == '\r')
- break;
- }
- }
- printf ("## Ready for binary (kermit) download ...\n");
-
- addr = load_serial_bin (offset);
-
- /*
- * Gather any trailing characters (for instance, the ^D which
- * is sent by 'cu' after sending a file), and give the
- * box some time (100 * 1 ms)
- */
- for (i=0; i<100; ++i) {
- if (serial_tstc()) {
- (void) serial_getc();
- }
- udelay(1000);
- }
-
- if (addr == ~0) {
- load_addr = 0;
- printf ("## Binary (kermit) download aborted\n");
- rcode = 1;
- } else {
- printf ("## Start Addr = 0x%08lx\n", addr);
- load_addr = addr;
- }
-
- if (load_baudrate != current_baudrate) {
- printf ("## Switch baudrate to %d bps and press ESC ...\n",
- current_baudrate);
- udelay (50000);
- gd->baudrate = current_baudrate;
- serial_setbrg ();
- udelay (50000);
- for (;;) {
- if (getc() == 0x1B) /* ESC */
- break;
- }
- }
-
-#ifdef CONFIG_AUTOSCRIPT
- if (load_addr) {
- char *s;
-
- if (((s = getenv("autoscript")) != NULL) && (strcmp(s,"yes") == 0)) {
- printf("Running autoscript at addr 0x%08lX ...\n", load_addr);
- rcode = autoscript (load_addr);
- }
- }
-#endif
+ printf ("## Application terminated, rc = 0x%lX\n", rc);
return rcode;
}
+/* -------------------------------------------------------------------- */
-static ulong load_serial_bin (ulong offset)
-{
- int size;
- char buf[32];
-
- set_kerm_bin_mode ((ulong *) offset);
- size = k_recv ();
- flush_cache (offset, size);
-
- printf("## Total Size = 0x%08x = %d Bytes\n", size, size);
- sprintf(buf, "%X", size);
- setenv("filesize", buf);
-
- return offset;
-}
-
-void send_pad (void)
-{
- int count = his_pad_count;
-
- while (count-- > 0)
- serial_putc (his_pad_char);
-}
+U_BOOT_CMD(
+ go, CONFIG_SYS_MAXARGS, 1, do_go,
+ "start application at address 'addr'",
+ "addr [arg ...]\n - start application at address 'addr'\n"
+ " passing 'arg' as arguments"
+);
-/* converts escaped kermit char to binary char */
-char ktrans (char in)
-{
- if ((in & 0x60) == 0x40) {
- return (char) (in & ~0x40);
- } else if ((in & 0x7f) == 0x3f) {
- return (char) (in | 0x40);
- } else
- return in;
-}
-
-int chk1 (char *buffer)
-{
- int total = 0;
-
- while (*buffer) {
- total += *buffer++;
- }
- return (int) ((total + ((total >> 6) & 0x03)) & 0x3f);
-}
-
-void s1_sendpacket (char *packet)
-{
- send_pad ();
- while (*packet) {
- serial_putc (*packet++);
- }
-}
-
-static char a_b[24];
-void send_ack (int n)
-{
- a_b[0] = START_CHAR;
- a_b[1] = tochar (3);
- a_b[2] = tochar (n);
- a_b[3] = ACK_TYPE;
- a_b[4] = '\0';
- a_b[4] = tochar (chk1 (&a_b[1]));
- a_b[5] = his_eol;
- a_b[6] = '\0';
- s1_sendpacket (a_b);
-}
-
-void send_nack (int n)
-{
- a_b[0] = START_CHAR;
- a_b[1] = tochar (3);
- a_b[2] = tochar (n);
- a_b[3] = NACK_TYPE;
- a_b[4] = '\0';
- a_b[4] = tochar (chk1 (&a_b[1]));
- a_b[5] = his_eol;
- a_b[6] = '\0';
- s1_sendpacket (a_b);
-}
-
-
-
-/* os_data_* takes an OS Open image and puts it into memory, and
- puts the boot header in an array named os_data_header
-
- if image is binary, no header is stored in os_data_header.
-*/
-void (*os_data_init) (void);
-void (*os_data_char) (char new_char);
-static int os_data_state, os_data_state_saved;
-int os_data_count;
-static int os_data_count_saved;
-static char *os_data_addr, *os_data_addr_saved;
-static char *bin_start_address;
-int os_data_header[8];
-static void bin_data_init (void)
-{
- os_data_state = 0;
- os_data_count = 0;
- os_data_addr = bin_start_address;
-}
-static void os_data_save (void)
-{
- os_data_state_saved = os_data_state;
- os_data_count_saved = os_data_count;
- os_data_addr_saved = os_data_addr;
-}
-static void os_data_restore (void)
-{
- os_data_state = os_data_state_saved;
- os_data_count = os_data_count_saved;
- os_data_addr = os_data_addr_saved;
-}
-static void bin_data_char (char new_char)
-{
- switch (os_data_state) {
- case 0: /* data */
- *os_data_addr++ = new_char;
- --os_data_count;
- break;
- }
-}
-static void set_kerm_bin_mode (unsigned long *addr)
-{
- bin_start_address = (char *) addr;
- os_data_init = bin_data_init;
- os_data_char = bin_data_char;
-}
-
-
-/* k_data_* simply handles the kermit escape translations */
-static int k_data_escape, k_data_escape_saved;
-void k_data_init (void)
-{
- k_data_escape = 0;
- os_data_init ();
-}
-void k_data_save (void)
-{
- k_data_escape_saved = k_data_escape;
- os_data_save ();
-}
-void k_data_restore (void)
-{
- k_data_escape = k_data_escape_saved;
- os_data_restore ();
-}
-void k_data_char (char new_char)
-{
- if (k_data_escape) {
- /* last char was escape - translate this character */
- os_data_char (ktrans (new_char));
- k_data_escape = 0;
- } else {
- if (new_char == his_quote) {
- /* this char is escape - remember */
- k_data_escape = 1;
- } else {
- /* otherwise send this char as-is */
- os_data_char (new_char);
- }
- }
-}
-
-#define SEND_DATA_SIZE 20
-char send_parms[SEND_DATA_SIZE];
-char *send_ptr;
-
-/* handle_send_packet interprits the protocol info and builds and
- sends an appropriate ack for what we can do */
-void handle_send_packet (int n)
-{
- int length = 3;
- int bytes;
-
- /* initialize some protocol parameters */
- his_eol = END_CHAR; /* default end of line character */
- his_pad_count = 0;
- his_pad_char = '\0';
- his_quote = K_ESCAPE;
-
- /* ignore last character if it filled the buffer */
- if (send_ptr == &send_parms[SEND_DATA_SIZE - 1])
- --send_ptr;
- bytes = send_ptr - send_parms; /* how many bytes we'll process */
- do {
- if (bytes-- <= 0)
- break;
- /* handle MAXL - max length */
- /* ignore what he says - most I'll take (here) is 94 */
- a_b[++length] = tochar (94);
- if (bytes-- <= 0)
- break;
- /* handle TIME - time you should wait for my packets */
- /* ignore what he says - don't wait for my ack longer than 1 second */
- a_b[++length] = tochar (1);
- if (bytes-- <= 0)
- break;
- /* handle NPAD - number of pad chars I need */
- /* remember what he says - I need none */
- his_pad_count = untochar (send_parms[2]);
- a_b[++length] = tochar (0);
- if (bytes-- <= 0)
- break;
- /* handle PADC - pad chars I need */
- /* remember what he says - I need none */
- his_pad_char = ktrans (send_parms[3]);
- a_b[++length] = 0x40; /* He should ignore this */
- if (bytes-- <= 0)
- break;
- /* handle EOL - end of line he needs */
- /* remember what he says - I need CR */
- his_eol = untochar (send_parms[4]);
- a_b[++length] = tochar (END_CHAR);
- if (bytes-- <= 0)
- break;
- /* handle QCTL - quote control char he'll use */
- /* remember what he says - I'll use '#' */
- his_quote = send_parms[5];
- a_b[++length] = '#';
- if (bytes-- <= 0)
- break;
- /* handle QBIN - 8-th bit prefixing */
- /* ignore what he says - I refuse */
- a_b[++length] = 'N';
- if (bytes-- <= 0)
- break;
- /* handle CHKT - the clock check type */
- /* ignore what he says - I do type 1 (for now) */
- a_b[++length] = '1';
- if (bytes-- <= 0)
- break;
- /* handle REPT - the repeat prefix */
- /* ignore what he says - I refuse (for now) */
- a_b[++length] = 'N';
- if (bytes-- <= 0)
- break;
- /* handle CAPAS - the capabilities mask */
- /* ignore what he says - I only do long packets - I don't do windows */
- a_b[++length] = tochar (2); /* only long packets */
- a_b[++length] = tochar (0); /* no windows */
- a_b[++length] = tochar (94); /* large packet msb */
- a_b[++length] = tochar (94); /* large packet lsb */
- } while (0);
-
- a_b[0] = START_CHAR;
- a_b[1] = tochar (length);
- a_b[2] = tochar (n);
- a_b[3] = ACK_TYPE;
- a_b[++length] = '\0';
- a_b[length] = tochar (chk1 (&a_b[1]));
- a_b[++length] = his_eol;
- a_b[++length] = '\0';
- s1_sendpacket (a_b);
-}
-
-/* k_recv receives a OS Open image file over kermit line */
-static int k_recv (void)
-{
- char new_char;
- char k_state, k_state_saved;
- int sum;
- int done;
- int length;
- int n, last_n;
- int z = 0;
- int len_lo, len_hi;
-
- /* initialize some protocol parameters */
- his_eol = END_CHAR; /* default end of line character */
- his_pad_count = 0;
- his_pad_char = '\0';
- his_quote = K_ESCAPE;
-
- /* initialize the k_recv and k_data state machine */
- done = 0;
- k_state = 0;
- k_data_init ();
- k_state_saved = k_state;
- k_data_save ();
- n = 0; /* just to get rid of a warning */
- last_n = -1;
-
- /* expect this "type" sequence (but don't check):
- S: send initiate
- F: file header
- D: data (multiple)
- Z: end of file
- B: break transmission
- */
-
- /* enter main loop */
- while (!done) {
- /* set the send packet pointer to begining of send packet parms */
- send_ptr = send_parms;
-
- /* With each packet, start summing the bytes starting with the length.
- Save the current sequence number.
- Note the type of the packet.
- If a character less than SPACE (0x20) is received - error.
- */
-
-#if 0
- /* OLD CODE, Prior to checking sequence numbers */
- /* first have all state machines save current states */
- k_state_saved = k_state;
- k_data_save ();
#endif
- /* get a packet */
- /* wait for the starting character */
- while (serial_getc () != START_CHAR);
- /* get length of packet */
- sum = 0;
- new_char = serial_getc ();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- sum += new_char & 0xff;
- length = untochar (new_char);
- /* get sequence number */
- new_char = serial_getc ();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- sum += new_char & 0xff;
- n = untochar (new_char);
- --length;
-
- /* NEW CODE - check sequence numbers for retried packets */
- /* Note - this new code assumes that the sequence number is correctly
- * received. Handling an invalid sequence number adds another layer
- * of complexity that may not be needed - yet! At this time, I'm hoping
- * that I don't need to buffer the incoming data packets and can write
- * the data into memory in real time.
- */
- if (n == last_n) {
- /* same sequence number, restore the previous state */
- k_state = k_state_saved;
- k_data_restore ();
- } else {
- /* new sequence number, checkpoint the download */
- last_n = n;
- k_state_saved = k_state;
- k_data_save ();
- }
- /* END NEW CODE */
-
- /* get packet type */
- new_char = serial_getc ();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- sum += new_char & 0xff;
- k_state = new_char;
- --length;
- /* check for extended length */
- if (length == -2) {
- /* (length byte was 0, decremented twice) */
- /* get the two length bytes */
- new_char = serial_getc ();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- sum += new_char & 0xff;
- len_hi = untochar (new_char);
- new_char = serial_getc ();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- sum += new_char & 0xff;
- len_lo = untochar (new_char);
- length = len_hi * 95 + len_lo;
- /* check header checksum */
- new_char = serial_getc ();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- if (new_char != tochar ((sum + ((sum >> 6) & 0x03)) & 0x3f))
- goto packet_error;
- sum += new_char & 0xff;
-/* --length; */ /* new length includes only data and block check to come */
- }
- /* bring in rest of packet */
- while (length > 1) {
- new_char = serial_getc ();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- sum += new_char & 0xff;
- --length;
- if (k_state == DATA_TYPE) {
- /* pass on the data if this is a data packet */
- k_data_char (new_char);
- } else if (k_state == SEND_TYPE) {
- /* save send pack in buffer as is */
- *send_ptr++ = new_char;
- /* if too much data, back off the pointer */
- if (send_ptr >= &send_parms[SEND_DATA_SIZE])
- --send_ptr;
- }
- }
- /* get and validate checksum character */
- new_char = serial_getc ();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- if (new_char != tochar ((sum + ((sum >> 6) & 0x03)) & 0x3f))
- goto packet_error;
- /* get END_CHAR */
- new_char = serial_getc ();
- if (new_char != END_CHAR) {
- packet_error:
- /* restore state machines */
- k_state = k_state_saved;
- k_data_restore ();
- /* send a negative acknowledge packet in */
- send_nack (n);
- } else if (k_state == SEND_TYPE) {
- /* crack the protocol parms, build an appropriate ack packet */
- handle_send_packet (n);
- } else {
- /* send simple acknowledge packet in */
- send_ack (n);
- /* quit if end of transmission */
- if (k_state == BREAK_TYPE)
- done = 1;
- }
- ++z;
- }
- return ((ulong) os_data_addr - (ulong) bin_start_address);
-}
-#endif /* CFG_CMD_LOADB */
-#if (CONFIG_COMMANDS & CFG_CMD_HWFLOW)
-int do_hwflow (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
- extern int hwflow_onoff(int);
-
- if (argc == 2) {
- if (strcmp(argv[1], "off") == 0)
- hwflow_onoff(-1);
- else
- if (strcmp(argv[1], "on") == 0)
- hwflow_onoff(1);
- else
- printf("Usage: %s\n", cmdtp->usage);
- }
- printf("RTS/CTS hardware flow control: %s\n", hwflow_onoff(0) ? "on" : "off");
- return 0;
-}
-#endif /* CFG_CMD_HWFLOW */
+U_BOOT_CMD(
+ reset, 1, 0, do_reset,
+ "Perform RESET of the CPU",
+ ""
+);
projects / karo-tx-uboot.git / blobdiff