/* * (C) Copyright 2000-2004 * 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 * * * Atapted for ppc4XX by Denis Peter */ #include <common.h> #include <commproc.h> #include <asm/io.h> #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) #if defined(CONFIG_SYS_POST_WORD_ADDR) # define _POST_ADDR ((CONFIG_SYS_OCM_DATA_ADDR) + (CONFIG_SYS_POST_WORD_ADDR)) #elif defined(CONFIG_SYS_POST_ALT_WORD_ADDR) # define _POST_ADDR (CONFIG_SYS_POST_ALT_WORD_ADDR) #endif void post_word_store (ulong a) { volatile void *save_addr = (volatile void *)(_POST_ADDR); out_be32(save_addr, a); } ulong post_word_load (void) { volatile void *save_addr = (volatile void *)(_POST_ADDR); return in_be32(save_addr); } #endif /* CONFIG_POST || CONFIG_LOGBUFFER*/ #ifdef CONFIG_BOOTCOUNT_LIMIT void bootcount_store (ulong a) { volatile ulong *save_addr = (volatile ulong *)(CONFIG_SYS_OCM_DATA_ADDR + CONFIG_SYS_BOOTCOUNT_ADDR); save_addr[0] = a; save_addr[1] = BOOTCOUNT_MAGIC; } ulong bootcount_load (void) { volatile ulong *save_addr = (volatile ulong *)(CONFIG_SYS_OCM_DATA_ADDR + CONFIG_SYS_BOOTCOUNT_ADDR); if (save_addr[1] != BOOTCOUNT_MAGIC) return 0; else return save_addr[0]; } #endif /* CONFIG_BOOTCOUNT_LIMIT */