PMC405 and CPCI2DP: Added firmware download and booting via pci. Patch by Matthias Fuchs, 20 Dec 2005master
Stefan Roese
19 years ago
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c4b465f63e
commit
2076d0a15f
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/*
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* (C) Copyright 2005 |
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* Matthias Fuchs, esd GmbH Germany, matthias.fuchs@esd-electronics.com |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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#include <command.h> |
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#if (CONFIG_COMMANDS & CFG_CMD_BSP) |
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extern int do_bootm (cmd_tbl_t *, int, int, char *[]); |
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extern int do_autoscript (cmd_tbl_t *, int, int, char *[]); |
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#define ADDRMASK 0xfffff000 |
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/*
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* Command loadpci: wait for signal from host and boot image. |
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*/ |
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int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) |
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{ |
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unsigned int *ptr = 0; |
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int count = 0; |
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int count2 = 0; |
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char addr[16]; |
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char str[] = "\\|/-"; |
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char *local_args[2]; |
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while(1) { |
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/*
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* Mark sync address |
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*/ |
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ptr = 0; |
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memset(ptr, 0, 0x20); |
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*ptr = 0xffffffff; |
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puts("\nWaiting for action from pci host -"); |
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/*
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* Wait for host to write the start address |
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*/ |
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while (*ptr == 0xffffffff) { |
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count++; |
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if (!(count % 100)) { |
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count2++; |
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putc(0x08); /* backspace */ |
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putc(str[count2 % 4]); |
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} |
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/* Abort if ctrl-c was pressed */ |
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if (ctrlc()) { |
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puts("\nAbort\n"); |
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return 0; |
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} |
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udelay(1000); |
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} |
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printf("\nGot bootcode %08x: ", *ptr); |
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sprintf(addr, "%08x", *ptr & ADDRMASK); |
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switch (*ptr & ~ADDRMASK) { |
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case 0: |
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/*
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* Boot image via bootm |
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*/ |
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printf("booting image at addr 0x%s ...\n", addr); |
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setenv("loadaddr", addr); |
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do_bootm (cmdtp, 0, 0, NULL); |
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break; |
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case 1: |
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/*
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* Boot image via autoscr |
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*/ |
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printf("executing script at addr 0x%s ...\n", addr); |
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local_args[0] = addr; |
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local_args[1] = NULL; |
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do_autoscript(cmdtp, 0, 1, local_args); |
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break; |
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case 2: |
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/*
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* Call run_cmd |
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*/ |
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printf("running command at addr 0x%s ...\n", addr); |
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run_command ((char*)(*ptr & ADDRMASK), 0); |
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break; |
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default: |
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printf("unhandled boot method\n"); |
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break; |
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} |
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} |
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} |
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U_BOOT_CMD( |
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loadpci, 1, 1, do_loadpci, |
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"loadpci - Wait for pci bootcmd and boot it\n", |
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NULL |
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); |
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#endif |
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