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/*
* Device Tree support for Armada 370 and XP platforms.
*
* Copyright (C) 2012 Marvell
*
* Lior Amsalem <alior@marvell.com>
* Gregory CLEMENT <gregory.clement@free-electrons.com>
* Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/clk-provider.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/io.h>
#include <linux/clocksource.h>
#include <linux/dma-mapping.h>
#include <linux/mbus.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include "armada-370-xp.h"
#include "common.h"
#include "coherency.h"
static void __init armada_370_xp_map_io(void)
{
debug_ll_io_init();
}
/*
* This initialization will be replaced by a DT-based
* initialization once the mvebu-mbus driver gains DT support.
*/
#define ARMADA_370_XP_MBUS_WINS_OFFS 0x20000
#define ARMADA_370_XP_MBUS_WINS_SIZE 0x100
#define ARMADA_370_XP_SDRAM_WINS_OFFS 0x20180
#define ARMADA_370_XP_SDRAM_WINS_SIZE 0x20
static void __init armada_370_xp_mbus_init(void)
{
char *mbus_soc_name;
struct device_node *dn;
const __be32 mbus_wins_offs = cpu_to_be32(ARMADA_370_XP_MBUS_WINS_OFFS);
const __be32 sdram_wins_offs = cpu_to_be32(ARMADA_370_XP_SDRAM_WINS_OFFS);
if (of_machine_is_compatible("marvell,armada370"))
mbus_soc_name = "marvell,armada370-mbus";
else
mbus_soc_name = "marvell,armadaxp-mbus";
dn = of_find_node_by_name(NULL, "internal-regs");
BUG_ON(!dn);
mvebu_mbus_init(mbus_soc_name,
of_translate_address(dn, &mbus_wins_offs),
ARMADA_370_XP_MBUS_WINS_SIZE,
of_translate_address(dn, &sdram_wins_offs),
ARMADA_370_XP_SDRAM_WINS_SIZE);
}
static void __init armada_370_xp_timer_and_clk_init(void)
{
of_clk_init(NULL);
clocksource_of_init();
coherency_init();
armada_370_xp_mbus_init();
#ifdef CONFIG_CACHE_L2X0
l2x0_of_init(0, ~0UL);
#endif
}
static void __init armada_370_xp_dt_init(void)
{
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
static const char * const armada_370_xp_dt_compat[] = {
"marvell,armada-370-xp",
NULL,
};
DT_MACHINE_START(ARMADA_XP_DT, "Marvell Armada 370/XP (Device Tree)")
.smp = smp_ops(armada_xp_smp_ops),
.init_machine = armada_370_xp_dt_init,
.map_io = armada_370_xp_map_io,
.init_time = armada_370_xp_timer_and_clk_init,
.restart = mvebu_restart,
.dt_compat = armada_370_xp_dt_compat,
MACHINE_END
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