/* * (C) Copyright 2002 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include #include #include #include #include #include <405gp_pci.h> #include #include "pci405.h" #if (CONFIG_COMMANDS & CFG_CMD_BSP) extern int do_bootm (cmd_tbl_t *, int, int, char *[]); /* * Command loadpci: wait for signal from host and boot image. */ int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { unsigned int *ptr = 0; int count = 0; int count2 = 0; int status; int i; char addr[16]; char str[] = "\\|/-"; char *local_args[2]; /* * Mark sync address */ ptr = 0; *ptr = 0xffffffff; puts("\nWaiting for image from pci host -"); /* * Wait for host to write the start address */ while (*ptr == 0xffffffff) { count++; if (!(count % 100)) { count2++; putc(0x08); /* backspace */ putc(str[count2 % 4]); } /* Abort if ctrl-c was pressed */ if (ctrlc()) { puts("\nAbort\n"); return 0; } udelay(1000); } if (*ptr == PCI_RECONFIG_MAGIC) { /* * Save own pci configuration in PRAM */ memset((char *)PCI_REGS_ADDR, 0, PCI_REGS_LEN); ptr = (unsigned int *)PCI_REGS_ADDR + 1; for (i=0; i<0x40; i+=4) { pci_read_config_dword(PCIDEVID_405GP, i, ptr++); } ptr = (unsigned int *)PCI_REGS_ADDR; *ptr = crc32(0, (char *)PCI_REGS_ADDR+4, PCI_REGS_LEN-4); printf("\nStoring PCI Configuration Regs...\n"); } else { sprintf(addr, "%08x", *ptr); /* * Boot image */ printf("\nBooting image at addr 0x%s ...\n", addr); setenv("loadaddr", addr); local_args[0] = argv[0]; local_args[1] = NULL; status = do_bootm (cmdtp, 0, 1, local_args); } return 0; } #endif