2012-06-13 19:01:28 +02:00
|
|
|
/*
|
|
|
|
|
* 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/of_platform.h>
|
|
|
|
|
#include <linux/io.h>
|
|
|
|
|
#include <linux/time-armada-370-xp.h>
|
2012-11-17 15:22:24 +01:00
|
|
|
#include <linux/clk/mvebu.h>
|
2012-10-26 14:30:46 +02:00
|
|
|
#include <linux/dma-mapping.h>
|
2013-03-21 17:59:15 +01:00
|
|
|
#include <linux/mbus.h>
|
2013-04-09 23:26:14 +02:00
|
|
|
#include <asm/hardware/cache-l2x0.h>
|
2012-06-13 19:01:28 +02:00
|
|
|
#include <asm/mach/arch.h>
|
|
|
|
|
#include <asm/mach/map.h>
|
|
|
|
|
#include <asm/mach/time.h>
|
2012-09-02 21:57:33 +02:00
|
|
|
#include "armada-370-xp.h"
|
2012-06-13 19:01:28 +02:00
|
|
|
#include "common.h"
|
2012-11-14 22:51:08 +01:00
|
|
|
#include "coherency.h"
|
2012-06-13 19:01:28 +02:00
|
|
|
|
|
|
|
|
static struct map_desc armada_370_xp_io_desc[] __initdata = {
|
|
|
|
|
{
|
2012-09-11 14:27:22 +02:00
|
|
|
.virtual = (unsigned long) ARMADA_370_XP_REGS_VIRT_BASE,
|
2012-06-13 19:01:28 +02:00
|
|
|
.pfn = __phys_to_pfn(ARMADA_370_XP_REGS_PHYS_BASE),
|
|
|
|
|
.length = ARMADA_370_XP_REGS_SIZE,
|
|
|
|
|
.type = MT_DEVICE,
|
|
|
|
|
},
|
|
|
|
|
};
|
|
|
|
|
|
2013-05-21 12:33:28 +02:00
|
|
|
static void __init armada_370_xp_map_io(void)
|
2012-06-13 19:01:28 +02:00
|
|
|
{
|
|
|
|
|
iotable_init(armada_370_xp_io_desc, ARRAY_SIZE(armada_370_xp_io_desc));
|
|
|
|
|
}
|
|
|
|
|
|
2013-05-21 12:33:28 +02:00
|
|
|
static void __init armada_370_xp_timer_and_clk_init(void)
|
2012-11-17 15:22:24 +01:00
|
|
|
{
|
arm: mvebu: move cache and mvebu-mbus initialization later
Current, the L2 cache and the mvebu-mbus drivers are initialized at
->init_early() time. However, at ->init_early() time, ioremap() only
works if a static I/O mapping has already been put in place. If it's
not the case, it tries to do a memory allocation with kmalloc() which
is not possible so early at this stage of the initialization.
Since we want to get rid of the static I/O mapping, we cannot
initialize the L2 cache driver and the mvebu-mbus driver so early. So,
we move their initialization to the ->init_time() level, which is
slightly later (so ioremap() works properly), but sufficiently early
to be before the call of the ->smp_prepare_cpus() hook, which creates
an address decoding window for the BootROM, which requires the
mvebu-mbus driver to be properly initialized.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-06-05 09:04:56 +02:00
|
|
|
char *mbus_soc_name;
|
|
|
|
|
|
2012-11-17 15:22:24 +01:00
|
|
|
mvebu_clocks_init();
|
|
|
|
|
armada_370_xp_timer_init();
|
2013-06-05 09:04:55 +02:00
|
|
|
coherency_init();
|
2013-03-21 17:59:15 +01:00
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* This initialization will be replaced by a DT-based
|
|
|
|
|
* initialization once the mvebu-mbus driver gains DT support.
|
|
|
|
|
*/
|
|
|
|
|
if (of_machine_is_compatible("marvell,armada370"))
|
|
|
|
|
mbus_soc_name = "marvell,armada370-mbus";
|
|
|
|
|
else
|
|
|
|
|
mbus_soc_name = "marvell,armadaxp-mbus";
|
|
|
|
|
|
|
|
|
|
mvebu_mbus_init(mbus_soc_name,
|
|
|
|
|
ARMADA_370_XP_MBUS_WINS_BASE,
|
|
|
|
|
ARMADA_370_XP_MBUS_WINS_SIZE,
|
|
|
|
|
ARMADA_370_XP_SDRAM_WINS_BASE,
|
|
|
|
|
ARMADA_370_XP_SDRAM_WINS_SIZE);
|
2013-05-07 20:22:14 +02:00
|
|
|
|
2013-04-09 23:26:14 +02:00
|
|
|
#ifdef CONFIG_CACHE_L2X0
|
|
|
|
|
l2x0_of_init(0, ~0UL);
|
|
|
|
|
#endif
|
2012-10-26 14:30:46 +02:00
|
|
|
}
|
|
|
|
|
|
2012-06-13 19:01:28 +02:00
|
|
|
static void __init armada_370_xp_dt_init(void)
|
|
|
|
|
{
|
|
|
|
|
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
|
|
|
|
|
}
|
|
|
|
|
|
2012-11-09 16:26:26 +01:00
|
|
|
static const char * const armada_370_xp_dt_compat[] = {
|
|
|
|
|
"marvell,armada-370-xp",
|
2012-06-13 19:01:28 +02:00
|
|
|
NULL,
|
|
|
|
|
};
|
|
|
|
|
|
2012-11-12 12:03:38 +01:00
|
|
|
DT_MACHINE_START(ARMADA_XP_DT, "Marvell Armada 370/XP (Device Tree)")
|
2012-11-14 22:51:08 +01:00
|
|
|
.smp = smp_ops(armada_xp_smp_ops),
|
2012-06-13 19:01:28 +02:00
|
|
|
.init_machine = armada_370_xp_dt_init,
|
|
|
|
|
.map_io = armada_370_xp_map_io,
|
2012-11-08 20:40:59 +01:00
|
|
|
.init_time = armada_370_xp_timer_and_clk_init,
|
2012-06-13 19:01:28 +02:00
|
|
|
.restart = mvebu_restart,
|
2012-11-09 16:26:26 +01:00
|
|
|
.dt_compat = armada_370_xp_dt_compat,
|
2012-06-13 19:01:28 +02:00
|
|
|
MACHINE_END
|
