41 строка
1.1 KiB
C
41 строка
1.1 KiB
C
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/*
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* Copyright 2007 David Gibson, IBM Corporation.
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*
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* Based on earlier code:
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* Matt Porter <mporter@kernel.crashing.org>
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* Copyright 2002-2005 MontaVista Software Inc.
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*
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* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
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* Copyright (c) 2003, 2004 Zultys Technologies
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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
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <stddef.h>
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#include "types.h"
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#include "string.h"
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#include "stdio.h"
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#include "ops.h"
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#include "reg.h"
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#include "dcr.h"
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/* Read the 44x memory controller to get size of system memory. */
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void ibm44x_fixup_memsize(void)
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{
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int i;
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unsigned long memsize, bank_config;
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memsize = 0;
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for (i = 0; i < ARRAY_SIZE(sdram_bxcr); i++) {
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mtdcr(DCRN_SDRAM0_CFGADDR, sdram_bxcr[i]);
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bank_config = mfdcr(DCRN_SDRAM0_CFGDATA);
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if (bank_config & SDRAM_CONFIG_BANK_ENABLE)
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memsize += SDRAM_CONFIG_BANK_SIZE(bank_config);
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}
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dt_fixup_memory(0, memsize);
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}
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