3 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
30 #include <405gp_pci.h>
35 #if (CONFIG_COMMANDS & CFG_CMD_BSP)
37 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
41 * Command loadpci: wait for signal from host and boot image.
43 int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
45 unsigned int *ptr = 0;
59 puts("\nWaiting for image from pci host -");
62 * Wait for host to write the start address
64 while (*ptr == 0xffffffff) {
68 putc(0x08); /* backspace */
69 putc(str[count2 % 4]);
72 /* Abort if ctrl-c was pressed */
81 if (*ptr == PCI_RECONFIG_MAGIC) {
83 * Save own pci configuration in PRAM
85 memset((char *)PCI_REGS_ADDR, 0, PCI_REGS_LEN);
86 ptr = (unsigned int *)PCI_REGS_ADDR + 1;
87 for (i=0; i<0x40; i+=4) {
88 pci_read_config_dword(PCIDEVID_405GP, i, ptr++);
90 ptr = (unsigned int *)PCI_REGS_ADDR;
91 *ptr = crc32(0, (char *)PCI_REGS_ADDR+4, PCI_REGS_LEN-4);
93 printf("\nStoring PCI Configuration Regs...\n");
95 sprintf(addr, "%08x", *ptr);
100 printf("\nBooting image at addr 0x%s ...\n", addr);
101 setenv("loadaddr", addr);
103 local_args[0] = argv[0];
104 local_args[1] = NULL;
105 status = do_bootm (cmdtp, 0, 1, local_args);