2012-04-10 05:17:06 +00:00
|
|
|
/*
|
|
|
|
* Copyright (c) 2011 The Chromium OS Authors.
|
|
|
|
*
|
|
|
|
* 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., 59 Temple Place, Suite 330, Boston,
|
|
|
|
* MA 02111-1307 USA
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <common.h>
|
|
|
|
#include <asm/io.h>
|
|
|
|
#include <asm/arch/ap20.h>
|
|
|
|
#include <asm/arch/clk_rst.h>
|
|
|
|
#include <asm/arch/clock.h>
|
|
|
|
#include <asm/arch/emc.h>
|
|
|
|
#include <asm/arch/pmu.h>
|
|
|
|
#include <asm/arch/sys_proto.h>
|
2012-08-31 08:30:00 +00:00
|
|
|
#include <asm/arch/tegra20.h>
|
2012-04-10 05:17:06 +00:00
|
|
|
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
|
|
|
|
/* These rates are hard-coded for now, until fdt provides them */
|
|
|
|
#define EMC_SDRAM_RATE_T20 (333000 * 2 * 1000)
|
|
|
|
#define EMC_SDRAM_RATE_T25 (380000 * 2 * 1000)
|
|
|
|
|
|
|
|
int board_emc_init(void)
|
|
|
|
{
|
|
|
|
unsigned rate;
|
|
|
|
|
|
|
|
switch (tegra_get_chip_type()) {
|
|
|
|
default:
|
|
|
|
case TEGRA_SOC_T20:
|
|
|
|
rate = EMC_SDRAM_RATE_T20;
|
|
|
|
break;
|
|
|
|
case TEGRA_SOC_T25:
|
|
|
|
rate = EMC_SDRAM_RATE_T25;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return tegra_set_emc(gd->fdt_blob, rate);
|
|
|
|
}
|