65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
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/*
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* Copyright (C) 2010 Albert ARIBAUD <albert.aribaud@free.fr>
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*
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* Based on original Kirkwood support which is
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* (C) Copyright 2009
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* Marvell Semiconductor <www.marvell.com>
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* Written-by: Prafulla Wadaskar <prafulla@marvell.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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#include <common.h>
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#include <config.h>
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#include <asm/arch/orion5x.h>
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DECLARE_GLOBAL_DATA_PTR;
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/*
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* orion5x_sdram_bar - reads SDRAM Base Address Register
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*/
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u32 orion5x_sdram_bar(enum memory_bank bank)
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{
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struct orion5x_ddr_addr_decode_registers *winregs =
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(struct orion5x_ddr_addr_decode_registers *)
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ORION5X_CPU_WIN_BASE;
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u32 result = 0;
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u32 enable = 0x01 & winregs[bank].size;
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if ((!enable) || (bank > BANK3))
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return 0;
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result = winregs[bank].base;
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return result;
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}
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int dram_init(void)
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{
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int i;
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for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
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gd->bd->bi_dram[i].start = orion5x_sdram_bar(i);
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gd->bd->bi_dram[i].size = get_ram_size(
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(volatile long *) (gd->bd->bi_dram[i].start),
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CONFIG_MAX_RAM_BANK_SIZE);
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}
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return 0;
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}
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