LXR uboot/board/esd/common/cmd

   1/*
   2 * (C) Copyright 2005-2008
   3 * Matthias Fuchs, esd GmbH Germany, matthias.fuchs@esd-electronics.com
   4 *
   5 * See file CREDITS for list of people who contributed to this
   6 * project.
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License as
  10 * published by the Free Software Foundation; either version 2 of
  11 * the License, or (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, write to the Free Software
  20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21 * MA 02111-1307 USA
  22 */
  23
  24#include <common.h>
  25#include <command.h>
  26#if !defined(CONFIG_440)
  27#include <asm/4xx_pci.h>
  28#endif
  29
  30#if defined(CONFIG_CMD_BSP)
  31
  32extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
  33extern int do_source (cmd_tbl_t *, int, int, char *[]);
  34
  35#define ADDRMASK 0xfffff000
  36
  37/*
  38 * Command loadpci: wait for signal from host and boot image.
  39 */
  40int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  41{
  42        u32 *ptr = 0;
  43        int count = 0;
  44        int count2 = 0;
  45        char addr[16];
  46        char str[] = "\\|/-";
  47        char *local_args[2];
  48        u32 la, ptm1la;
  49
  50#if defined(CONFIG_440)
  51        ptm1la = in32r(PCIL0_PTM1LA);
  52#else
  53        ptm1la = in32r(PTM1LA);
  54#endif
  55        while(1) {
  56                /*
  57                 * Mark sync address
  58                 */
  59                ptr = (u32 *)ptm1la;
  60                memset(ptr, 0, 0x20);
  61
  62                *ptr = 0xffffffff;
  63                puts("\nWaiting for action from pci host -");
  64
  65                /*
  66                 * Wait for host to write the start address
  67                 */
  68                while (*ptr == 0xffffffff) {
  69                        count++;
  70                        if (!(count % 100)) {
  71                                count2++;
  72                                putc(0x08); /* backspace */
  73                                putc(str[count2 % 4]);
  74                        }
  75
  76                        /* Abort if ctrl-c was pressed */
  77                        if (ctrlc()) {
  78                                puts("\nAbort\n");
  79                                return 0;
  80                        }
  81
  82                        udelay(1000);
  83                }
  84
  85                printf("\nGot bootcode %08x: ", *ptr);
  86                la = ptm1la + (*ptr & ADDRMASK);
  87                sprintf(addr, "%08x", la);
  88
  89                switch (*ptr & ~ADDRMASK) {
  90                case 0:
  91                        /*
  92                         * Boot image via bootm
  93                         */
  94                        printf("booting image at addr 0x%s ...\n", addr);
  95                        setenv("loadaddr", addr);
  96                        do_bootm(cmdtp, 0, 0, NULL);
  97                        break;
  98
  99                case 1:
 100                        /*
 101                         * Boot image via "source" command
 102                         */
 103                        printf("executing script at addr 0x%s ...\n", addr);
 104                        local_args[0] = addr;
 105                        local_args[1] = NULL;
 106                        do_source(cmdtp, 0, 1, local_args);
 107                        break;
 108
 109                case 2:
 110                        /*
 111                         * Call run_cmd
 112                         */
 113                        printf("running command at addr 0x%s ...\n", addr);
 114                        run_command((char*)la, 0);
 115                        break;
 116
 117                default:
 118                        printf("unhandled boot method\n");
 119                        break;
 120                }
 121        }
 122}
 123
 124U_BOOT_CMD(
 125        loadpci,        1,      1,      do_loadpci,
 126        "Wait for pci bootcmd and boot it",
 127        ""
 128);
 129
 130#endif
 131