linux/arch/arm/mach-mvebu/board-v7.c

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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 <linux/signal.h>
#include <linux/slab.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"
#include "mvebu-soc-id.h"
/*
* Early versions of Armada 375 SoC have a bug where the BootROM
* leaves an external data abort pending. The kernel is hit by this
* data abort as soon as it enters userspace, because it unmasks the
* data aborts at this moment. We register a custom abort handler
* below to ignore the first data abort to work around this
* problem.
*/
static int armada_375_external_abort_wa(unsigned long addr, unsigned int fsr,
struct pt_regs *regs)
{
static int ignore_first;
if (!ignore_first && fsr == 0x1406) {
ignore_first = 1;
return 0;
}
return 1;
}
static void __init mvebu_timer_and_clk_init(void)
{
mvebu register map changes for v3.11 This series removes the hardcoded register base address for mvebu. Depends: - mvebu/fixes-non-critical (up to tags/fixes-non-3.11-1) - mvebu/cleanup (up to tags/cleanup-3.11-3) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.20 (GNU/Linux) iQEcBAABAgAGBQJRujY/AAoJEAi3KVZQDZAeQ/8H/186TUo1jWJJP/Tdp6Rg09qK FeZeVH9YrViLO2g2iO338TlfIjshJW8HgMv8tnuJo9xLz5wtws3Dpv5BpcYoGoKs vU/d1EZC4vJTs5IZ2fS6p0LpvV8YrUYVi9v7uPWHFx6DYGznuHPP/q8Hu6Pa0Tok MoPNAihBYMEhePGuBQo1j3xPtteifJy/CUv5iSrAAJSEI5zGRc7QO/0ItS2gc9qy odFZKTZnGPlp/79np4I1/cjNTRuD5kf/9IzNFxl4ZL4X7Nre9J+8IFoPU671EDw1 XMBEtf6ThO6Z8oLiVPxeHlSLO2o7xQj7VEAUoSEsiK4whJAfxFiOqIiIC5SXfDA= =hKzx -----END PGP SIGNATURE----- Merge tag 'regmap-3.11' of git://git.infradead.org/users/jcooper/linux into next/soc mvebu register map changes for v3.11 This series removes the hardcoded register base address for mvebu. Depends: - mvebu/fixes-non-critical (up to tags/fixes-non-3.11-1) - mvebu/cleanup (up to tags/cleanup-3.11-3) * tag 'regmap-3.11' of git://git.infradead.org/users/jcooper/linux: arm: mvebu: disable DEBUG_LL/EARLY_PRINTK in defconfig arm: mvebu: add another earlyprintk Kconfig option arm: mvebu: don't hardcode the physical address for mvebu-mbus arm: mvebu: don't hardcode a physical address in headsmp.S arm: mvebu: remove hardcoded static I/O mapping arm: mvebu: move cache and mvebu-mbus initialization later arm: mvebu: avoid hardcoded virtual address in coherency code arm: mvebu: remove dependency of SMP init on static I/O mapping arm: mvebu: fix length of Ethernet registers area in .dtsi arm: mvebu: fix length of SATA registers area in .dtsi arm: mvebu: mark functions of armada-370-xp.c as static ARM: mvebu: Remove init_irq declaration in machine description ARM: Orion: Remove redundant init_dma_coherent_pool_size() Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-15 00:18:25 +02:00
of_clk_init(NULL);
clocksource_of_init();
coherency_init();
BUG_ON(mvebu_mbus_dt_init());
#ifdef CONFIG_CACHE_L2X0
l2x0_of_init(0, ~0UL);
#endif
if (of_machine_is_compatible("marvell,armada375"))
hook_fault_code(16 + 6, armada_375_external_abort_wa, SIGBUS, 0,
"imprecise external abort");
}
static void __init i2c_quirk(void)
{
struct device_node *np;
u32 dev, rev;
/*
* Only revisons more recent than A0 support the offload
* mechanism. We can exit only if we are sure that we can
* get the SoC revision and it is more recent than A0.
*/
if (mvebu_get_soc_id(&rev, &dev) == 0 && dev > MV78XX0_A0_REV)
return;
for_each_compatible_node(np, NULL, "marvell,mv78230-i2c") {
struct property *new_compat;
new_compat = kzalloc(sizeof(*new_compat), GFP_KERNEL);
new_compat->name = kstrdup("compatible", GFP_KERNEL);
new_compat->length = sizeof("marvell,mv78230-a0-i2c");
new_compat->value = kstrdup("marvell,mv78230-a0-i2c",
GFP_KERNEL);
of_update_property(np, new_compat);
}
return;
}
static void __init mvebu_dt_init(void)
{
if (of_machine_is_compatible("plathome,openblocks-ax3-4"))
i2c_quirk();
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_370_XP_DT, "Marvell Armada 370/XP (Device Tree)")
.smp = smp_ops(armada_xp_smp_ops),
.init_machine = mvebu_dt_init,
.init_time = mvebu_timer_and_clk_init,
.restart = mvebu_restart,
.dt_compat = armada_370_xp_dt_compat,
MACHINE_END
static const char * const armada_375_dt_compat[] = {
"marvell,armada375",
NULL,
};
DT_MACHINE_START(ARMADA_375_DT, "Marvell Armada 375 (Device Tree)")
.init_time = mvebu_timer_and_clk_init,
.restart = mvebu_restart,
.dt_compat = armada_375_dt_compat,
MACHINE_END
static const char * const armada_38x_dt_compat[] = {
"marvell,armada380",
"marvell,armada385",
NULL,
};
DT_MACHINE_START(ARMADA_38X_DT, "Marvell Armada 380/385 (Device Tree)")
.init_time = mvebu_timer_and_clk_init,
.restart = mvebu_restart,
.dt_compat = armada_38x_dt_compat,
MACHINE_END