57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
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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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#include <common.h>
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#include <config.h>
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#include <asm/arch/cpu.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_DRAM_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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/* dram_init must store complete ramsize in gd->ram_size */
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gd->ram_size = get_ram_size(
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(long *) orion5x_sdram_bar(0),
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CONFIG_MAX_RAM_BANK_SIZE);
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return 0;
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}
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int dram_init_banksize(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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(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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