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