mirror of
https://github.com/AsahiLinux/u-boot
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77 lines
2 KiB
C
77 lines
2 KiB
C
/*
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* (C) Copyright 2000-2004
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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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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*
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* Atapted for ppc4XX by Denis Peter
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*/
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#include <common.h>
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#include <commproc.h>
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#include <asm/io.h>
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#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
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#if defined(CONFIG_SYS_POST_WORD_ADDR)
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# define _POST_ADDR ((CONFIG_SYS_OCM_DATA_ADDR) + (CONFIG_SYS_POST_WORD_ADDR))
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#elif defined(CONFIG_SYS_POST_ALT_WORD_ADDR)
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# define _POST_ADDR (CONFIG_SYS_POST_ALT_WORD_ADDR)
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#endif
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void post_word_store (ulong a)
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{
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volatile void *save_addr = (volatile void *)(_POST_ADDR);
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out_be32(save_addr, a);
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}
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ulong post_word_load (void)
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{
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volatile void *save_addr = (volatile void *)(_POST_ADDR);
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return in_be32(save_addr);
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}
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#endif /* CONFIG_POST || CONFIG_LOGBUFFER*/
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#ifdef CONFIG_BOOTCOUNT_LIMIT
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void bootcount_store (ulong a)
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{
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volatile ulong *save_addr =
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(volatile ulong *)(CONFIG_SYS_OCM_DATA_ADDR + CONFIG_SYS_BOOTCOUNT_ADDR);
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save_addr[0] = a;
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save_addr[1] = BOOTCOUNT_MAGIC;
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}
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ulong bootcount_load (void)
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{
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volatile ulong *save_addr =
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(volatile ulong *)(CONFIG_SYS_OCM_DATA_ADDR + CONFIG_SYS_BOOTCOUNT_ADDR);
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if (save_addr[1] != BOOTCOUNT_MAGIC)
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return 0;
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else
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return save_addr[0];
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}
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#endif /* CONFIG_BOOTCOUNT_LIMIT */
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