These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

14 files changed, 193 insertions, 306 deletions

diff --git a/kernel/arch/arm/mach-mvebu/Kconfig b/kernel/arch/arm/mach-mvebu/Kconfig
index 97473168d..e20fc4178 100644
--- a/kernel/arch/arm/mach-mvebu/Kconfig
+++ b/kernel/arch/arm/mach-mvebu/Kconfig
@@ -96,6 +96,7 @@ config MACH_DOVE
 	select MACH_MVEBU_ANY
 	select ORION_IRQCHIP
 	select ORION_TIMER
+	select PM_GENERIC_DOMAINS if PM
 	select PINCTRL_DOVE
 	help
 	  Say 'Y' here if you want your kernel to support the
@@ -116,11 +117,4 @@ config MACH_KIRKWOOD
 	  Say 'Y' here if you want your kernel to support boards based
 	  on the Marvell Kirkwood device tree.
 
-config MACH_NETXBIG
-	bool "LaCie 2Big and 5Big Network v2"
-	depends on MACH_KIRKWOOD
-	help
-	  Say 'Y' here if you want your kernel to support the
-	  LaCie 2Big and 5Big Network v2
-
 endif
diff --git a/kernel/arch/arm/mach-mvebu/Makefile b/kernel/arch/arm/mach-mvebu/Makefile
index b4f01497c..ecf9e0c3b 100644
--- a/kernel/arch/arm/mach-mvebu/Makefile
+++ b/kernel/arch/arm/mach-mvebu/Makefile
@@ -13,4 +13,3 @@ endif
 
 obj-$(CONFIG_MACH_DOVE)		 += dove.o
 obj-$(CONFIG_MACH_KIRKWOOD)	 += kirkwood.o kirkwood-pm.o
-obj-$(CONFIG_MACH_NETXBIG)	 += netxbig.o
diff --git a/kernel/arch/arm/mach-mvebu/board-v7.c b/kernel/arch/arm/mach-mvebu/board-v7.c
index afee9083a..1648edd51 100644
--- a/kernel/arch/arm/mach-mvebu/board-v7.c
+++ b/kernel/arch/arm/mach-mvebu/board-v7.c
@@ -14,7 +14,6 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/clk-provider.h>
 #include <linux/of_address.h>
 #include <linux/of_fdt.h>
 #include <linux/of_platform.h>
@@ -23,7 +22,6 @@
 #include <linux/dma-mapping.h>
 #include <linux/memblock.h>
 #include <linux/mbus.h>
-#include <linux/signal.h>
 #include <linux/slab.h>
 #include <linux/irqchip.h>
 #include <asm/hardware/cache-l2x0.h>
@@ -106,27 +104,6 @@ static void __init mvebu_memblock_reserve(void)
 static void __init mvebu_memblock_reserve(void) {}
 #endif
 
-/*
- * 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_init_irq(void)
 {
 	irqchip_init();
@@ -135,17 +112,6 @@ static void __init mvebu_init_irq(void)
 	BUG_ON(mvebu_mbus_dt_init(coherency_available()));
 }
 
-static void __init external_abort_quirk(void)
-{
-	u32 dev, rev;
-
-	if (mvebu_get_soc_id(&dev, &rev) == 0 && rev > ARMADA_375_Z1_REV)
-		return;
-
-	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;
@@ -178,8 +144,6 @@ static void __init mvebu_dt_init(void)
 {
 	if (of_machine_is_compatible("marvell,armadaxp"))
 		i2c_quirk();
-	if (of_machine_is_compatible("marvell,a375-db"))
-		external_abort_quirk();
 
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
diff --git a/kernel/arch/arm/mach-mvebu/board.h b/kernel/arch/arm/mach-mvebu/board.h
deleted file mode 100644
index 98e32cc2e..000000000
--- a/kernel/arch/arm/mach-mvebu/board.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Board functions for Marvell System On Chip
- *
- * Copyright (C) 2014
- *
- * Andrew Lunn <andrew@lunn.ch>
- *
- * 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.
- */
-
-#ifndef __ARCH_MVEBU_BOARD_H
-#define __ARCH_MVEBU_BOARD_H
-
-#ifdef CONFIG_MACH_NETXBIG
-void netxbig_init(void);
-#else
-static inline void netxbig_init(void) {};
-#endif
-#endif
diff --git a/kernel/arch/arm/mach-mvebu/coherency.c b/kernel/arch/arm/mach-mvebu/coherency.c
index e46e9ea1e..55348ee5a 100644
--- a/kernel/arch/arm/mach-mvebu/coherency.c
+++ b/kernel/arch/arm/mach-mvebu/coherency.c
@@ -40,6 +40,7 @@
 unsigned long coherency_phys_base;
 void __iomem *coherency_base;
 static void __iomem *coherency_cpu_base;
+static void __iomem *cpu_config_base;
 
 /* Coherency fabric registers */
 #define IO_SYNC_BARRIER_CTL_OFFSET		   0x0
@@ -65,16 +66,29 @@ static const struct of_device_id of_coherency_table[] = {
 int ll_enable_coherency(void);
 void ll_add_cpu_to_smp_group(void);
 
-int set_cpu_coherent(void)
+#define CPU_CONFIG_SHARED_L2 BIT(16)
+
+/*
+ * Disable the "Shared L2 Present" bit in CPU Configuration register
+ * on Armada XP.
+ *
+ * The "Shared L2 Present" bit affects the "level of coherence" value
+ * in the clidr CP15 register.  Cache operation functions such as
+ * "flush all" and "invalidate all" operate on all the cache levels
+ * that included in the defined level of coherence. When HW I/O
+ * coherency is used, this bit causes unnecessary flushes of the L2
+ * cache.
+ */
+static void armada_xp_clear_shared_l2(void)
 {
-	if (!coherency_base) {
-		pr_warn("Can't make current CPU cache coherent.\n");
-		pr_warn("Coherency fabric is not initialized\n");
-		return 1;
-	}
+	u32 reg;
+
+	if (!cpu_config_base)
+		return;
 
-	ll_add_cpu_to_smp_group();
-	return ll_enable_coherency();
+	reg = readl(cpu_config_base);
+	reg &= ~CPU_CONFIG_SHARED_L2;
+	writel(reg, cpu_config_base);
 }
 
 static int mvebu_hwcc_notifier(struct notifier_block *nb,
@@ -97,9 +111,24 @@ static struct notifier_block mvebu_hwcc_pci_nb = {
 	.notifier_call = mvebu_hwcc_notifier,
 };
 
+static int armada_xp_clear_shared_l2_notifier_func(struct notifier_block *nfb,
+					unsigned long action, void *hcpu)
+{
+	if (action == CPU_STARTING || action == CPU_STARTING_FROZEN)
+		armada_xp_clear_shared_l2();
+
+	return NOTIFY_OK;
+}
+
+static struct notifier_block armada_xp_clear_shared_l2_notifier = {
+	.notifier_call = armada_xp_clear_shared_l2_notifier_func,
+	.priority = 100,
+};
+
 static void __init armada_370_coherency_init(struct device_node *np)
 {
 	struct resource res;
+	struct device_node *cpu_config_np;
 
 	of_address_to_resource(np, 0, &res);
 	coherency_phys_base = res.start;
@@ -112,6 +141,23 @@ static void __init armada_370_coherency_init(struct device_node *np)
 	sync_cache_w(&coherency_phys_base);
 	coherency_base = of_iomap(np, 0);
 	coherency_cpu_base = of_iomap(np, 1);
+
+	cpu_config_np = of_find_compatible_node(NULL, NULL,
+						"marvell,armada-xp-cpu-config");
+	if (!cpu_config_np)
+		goto exit;
+
+	cpu_config_base = of_iomap(cpu_config_np, 0);
+	if (!cpu_config_base) {
+		of_node_put(cpu_config_np);
+		goto exit;
+	}
+
+	of_node_put(cpu_config_np);
+
+	register_cpu_notifier(&armada_xp_clear_shared_l2_notifier);
+
+exit:
 	set_cpu_coherent();
 }
 
@@ -206,6 +252,25 @@ static int coherency_type(void)
 	return type;
 }
 
+int set_cpu_coherent(void)
+{
+	int type = coherency_type();
+
+	if (type == COHERENCY_FABRIC_TYPE_ARMADA_370_XP) {
+		if (!coherency_base) {
+			pr_warn("Can't make current CPU cache coherent.\n");
+			pr_warn("Coherency fabric is not initialized\n");
+			return 1;
+		}
+
+		armada_xp_clear_shared_l2();
+		ll_add_cpu_to_smp_group();
+		return ll_enable_coherency();
+	}
+
+	return 0;
+}
+
 int coherency_available(void)
 {
 	return coherency_type() != COHERENCY_FABRIC_TYPE_NONE;
diff --git a/kernel/arch/arm/mach-mvebu/common.h b/kernel/arch/arm/mach-mvebu/common.h
index 3e0aca1f2..6b775492c 100644
--- a/kernel/arch/arm/mach-mvebu/common.h
+++ b/kernel/arch/arm/mach-mvebu/common.h
@@ -25,6 +25,6 @@ int mvebu_system_controller_get_soc_id(u32 *dev, u32 *rev);
 
 void __iomem *mvebu_get_scu_base(void);
 
-int mvebu_pm_init(void (*board_pm_enter)(void __iomem *sdram_reg, u32 srcmd));
-
+int mvebu_pm_suspend_init(void (*board_pm_enter)(void __iomem *sdram_reg,
+							u32 srcmd));
 #endif
diff --git a/kernel/arch/arm/mach-mvebu/dove.c b/kernel/arch/arm/mach-mvebu/dove.c
index 5a1741500..1aebb82e3 100644
--- a/kernel/arch/arm/mach-mvebu/dove.c
+++ b/kernel/arch/arm/mach-mvebu/dove.c
@@ -12,6 +12,7 @@
 #include <linux/mbus.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
+#include <linux/soc/dove/pmu.h>
 #include <asm/hardware/cache-tauros2.h>
 #include <asm/mach/arch.h>
 #include "common.h"
@@ -24,6 +25,7 @@ static void __init dove_init(void)
 	tauros2_init(0);
 #endif
 	BUG_ON(mvebu_mbus_dt_init(false));
+	dove_init_pmu();
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
diff --git a/kernel/arch/arm/mach-mvebu/headsmp-a9.S b/kernel/arch/arm/mach-mvebu/headsmp-a9.S
index 48e4c4b3c..b093a196e 100644
--- a/kernel/arch/arm/mach-mvebu/headsmp-a9.S
+++ b/kernel/arch/arm/mach-mvebu/headsmp-a9.S
@@ -13,12 +13,9 @@
  */
 
 #include <linux/linkage.h>
-#include <linux/init.h>
 
 #include <asm/assembler.h>
 
-	__CPUINIT
-
 ENTRY(mvebu_cortex_a9_secondary_startup)
 ARM_BE8(setend	be)
 	bl	armada_38x_scu_power_up
diff --git a/kernel/arch/arm/mach-mvebu/kirkwood.c b/kernel/arch/arm/mach-mvebu/kirkwood.c
index 925f75f54..f9d8e1ea7 100644
--- a/kernel/arch/arm/mach-mvebu/kirkwood.c
+++ b/kernel/arch/arm/mach-mvebu/kirkwood.c
@@ -25,7 +25,6 @@
 #include "kirkwood.h"
 #include "kirkwood-pm.h"
 #include "common.h"
-#include "board.h"
 
 static struct resource kirkwood_cpufreq_resources[] = {
 	[0] = {
@@ -180,9 +179,6 @@ static void __init kirkwood_dt_init(void)
 	kirkwood_pm_init();
 	kirkwood_dt_eth_fixup();
 
-	if (of_machine_is_compatible("lacie,netxbig"))
-		netxbig_init();
-
 	of_platform_populate(NULL, of_default_bus_match_table, auxdata, NULL);
 }
 
diff --git a/kernel/arch/arm/mach-mvebu/netxbig.c b/kernel/arch/arm/mach-mvebu/netxbig.c
deleted file mode 100644
index 94b11b658..000000000
--- a/kernel/arch/arm/mach-mvebu/netxbig.c
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * arch/arm/mach-mvbu/board-netxbig.c
- *
- * LaCie 2Big and 5Big Network v2 board setup
- *
- * Copyright (C) 2010 Simon Guinot <sguinot@lacie.com>
- *
- * 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.
- */
-
-#include <linux/kernel.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <linux/platform_data/leds-kirkwood-netxbig.h>
-#include "common.h"
-
-/*****************************************************************************
- * GPIO extension LEDs
- ****************************************************************************/
-
-/*
- * The LEDs are controlled by a CPLD and can be configured through a GPIO
- * extension bus:
- *
- * - address register : bit [0-2] -> GPIO [47-49]
- * - data register    : bit [0-2] -> GPIO [44-46]
- * - enable register  : GPIO 29
- */
-
-static int netxbig_v2_gpio_ext_addr[] = { 47, 48, 49 };
-static int netxbig_v2_gpio_ext_data[] = { 44, 45, 46 };
-
-static struct netxbig_gpio_ext netxbig_v2_gpio_ext = {
-	.addr		= netxbig_v2_gpio_ext_addr,
-	.num_addr	= ARRAY_SIZE(netxbig_v2_gpio_ext_addr),
-	.data		= netxbig_v2_gpio_ext_data,
-	.num_data	= ARRAY_SIZE(netxbig_v2_gpio_ext_data),
-	.enable		= 29,
-};
-
-/*
- * Address register selection:
- *
- * addr | register
- * ----------------------------
- *   0  | front LED
- *   1  | front LED brightness
- *   2  | SATA LED brightness
- *   3  | SATA0 LED
- *   4  | SATA1 LED
- *   5  | SATA2 LED
- *   6  | SATA3 LED
- *   7  | SATA4 LED
- *
- * Data register configuration:
- *
- * data | LED brightness
- * -------------------------------------------------
- *   0  | min (off)
- *   -  | -
- *   7  | max
- *
- * data | front LED mode
- * -------------------------------------------------
- *   0  | fix off
- *   1  | fix blue on
- *   2  | fix red on
- *   3  | blink blue on=1 sec and blue off=1 sec
- *   4  | blink red on=1 sec and red off=1 sec
- *   5  | blink blue on=2.5 sec and red on=0.5 sec
- *   6  | blink blue on=1 sec and red on=1 sec
- *   7  | blink blue on=0.5 sec and blue off=2.5 sec
- *
- * data | SATA LED mode
- * -------------------------------------------------
- *   0  | fix off
- *   1  | SATA activity blink
- *   2  | fix red on
- *   3  | blink blue on=1 sec and blue off=1 sec
- *   4  | blink red on=1 sec and red off=1 sec
- *   5  | blink blue on=2.5 sec and red on=0.5 sec
- *   6  | blink blue on=1 sec and red on=1 sec
- *   7  | fix blue on
- */
-
-static int netxbig_v2_red_mled[NETXBIG_LED_MODE_NUM] = {
-	[NETXBIG_LED_OFF]	= 0,
-	[NETXBIG_LED_ON]	= 2,
-	[NETXBIG_LED_SATA]	= NETXBIG_LED_INVALID_MODE,
-	[NETXBIG_LED_TIMER1]	= 4,
-	[NETXBIG_LED_TIMER2]	= NETXBIG_LED_INVALID_MODE,
-};
-
-static int netxbig_v2_blue_pwr_mled[NETXBIG_LED_MODE_NUM] = {
-	[NETXBIG_LED_OFF]	= 0,
-	[NETXBIG_LED_ON]	= 1,
-	[NETXBIG_LED_SATA]	= NETXBIG_LED_INVALID_MODE,
-	[NETXBIG_LED_TIMER1]	= 3,
-	[NETXBIG_LED_TIMER2]	= 7,
-};
-
-static int netxbig_v2_blue_sata_mled[NETXBIG_LED_MODE_NUM] = {
-	[NETXBIG_LED_OFF]	= 0,
-	[NETXBIG_LED_ON]	= 7,
-	[NETXBIG_LED_SATA]	= 1,
-	[NETXBIG_LED_TIMER1]	= 3,
-	[NETXBIG_LED_TIMER2]	= NETXBIG_LED_INVALID_MODE,
-};
-
-static struct netxbig_led_timer netxbig_v2_led_timer[] = {
-	[0] = {
-		.delay_on	= 500,
-		.delay_off	= 500,
-		.mode		= NETXBIG_LED_TIMER1,
-	},
-	[1] = {
-		.delay_on	= 500,
-		.delay_off	= 1000,
-		.mode		= NETXBIG_LED_TIMER2,
-	},
-};
-
-#define NETXBIG_LED(_name, maddr, mval, baddr)			\
-	{ .name		= _name,				\
-	  .mode_addr	= maddr,				\
-	  .mode_val	= mval,					\
-	  .bright_addr	= baddr }
-
-static struct netxbig_led net2big_v2_leds_ctrl[] = {
-	NETXBIG_LED("net2big-v2:blue:power", 0, netxbig_v2_blue_pwr_mled,  1),
-	NETXBIG_LED("net2big-v2:red:power",  0, netxbig_v2_red_mled,       1),
-	NETXBIG_LED("net2big-v2:blue:sata0", 3, netxbig_v2_blue_sata_mled, 2),
-	NETXBIG_LED("net2big-v2:red:sata0",  3, netxbig_v2_red_mled,       2),
-	NETXBIG_LED("net2big-v2:blue:sata1", 4, netxbig_v2_blue_sata_mled, 2),
-	NETXBIG_LED("net2big-v2:red:sata1",  4, netxbig_v2_red_mled,       2),
-};
-
-static struct netxbig_led_platform_data net2big_v2_leds_data = {
-	.gpio_ext	= &netxbig_v2_gpio_ext,
-	.timer		= netxbig_v2_led_timer,
-	.num_timer	= ARRAY_SIZE(netxbig_v2_led_timer),
-	.leds		= net2big_v2_leds_ctrl,
-	.num_leds	= ARRAY_SIZE(net2big_v2_leds_ctrl),
-};
-
-static struct netxbig_led net5big_v2_leds_ctrl[] = {
-	NETXBIG_LED("net5big-v2:blue:power", 0, netxbig_v2_blue_pwr_mled,  1),
-	NETXBIG_LED("net5big-v2:red:power",  0, netxbig_v2_red_mled,       1),
-	NETXBIG_LED("net5big-v2:blue:sata0", 3, netxbig_v2_blue_sata_mled, 2),
-	NETXBIG_LED("net5big-v2:red:sata0",  3, netxbig_v2_red_mled,       2),
-	NETXBIG_LED("net5big-v2:blue:sata1", 4, netxbig_v2_blue_sata_mled, 2),
-	NETXBIG_LED("net5big-v2:red:sata1",  4, netxbig_v2_red_mled,       2),
-	NETXBIG_LED("net5big-v2:blue:sata2", 5, netxbig_v2_blue_sata_mled, 2),
-	NETXBIG_LED("net5big-v2:red:sata2",  5, netxbig_v2_red_mled,       2),
-	NETXBIG_LED("net5big-v2:blue:sata3", 6, netxbig_v2_blue_sata_mled, 2),
-	NETXBIG_LED("net5big-v2:red:sata3",  6, netxbig_v2_red_mled,       2),
-	NETXBIG_LED("net5big-v2:blue:sata4", 7, netxbig_v2_blue_sata_mled, 2),
-	NETXBIG_LED("net5big-v2:red:sata4",  7, netxbig_v2_red_mled,       2),
-};
-
-static struct netxbig_led_platform_data net5big_v2_leds_data = {
-	.gpio_ext	= &netxbig_v2_gpio_ext,
-	.timer		= netxbig_v2_led_timer,
-	.num_timer	= ARRAY_SIZE(netxbig_v2_led_timer),
-	.leds		= net5big_v2_leds_ctrl,
-	.num_leds	= ARRAY_SIZE(net5big_v2_leds_ctrl),
-};
-
-static struct platform_device netxbig_v2_leds = {
-	.name		= "leds-netxbig",
-	.id		= -1,
-	.dev		= {
-		.platform_data	= &net2big_v2_leds_data,
-	},
-};
-
-void __init netxbig_init(void)
-{
-
-	if (of_machine_is_compatible("lacie,net5big_v2"))
-		netxbig_v2_leds.dev.platform_data = &net5big_v2_leds_data;
-	platform_device_register(&netxbig_v2_leds);
-}
diff --git a/kernel/arch/arm/mach-mvebu/platsmp-a9.c b/kernel/arch/arm/mach-mvebu/platsmp-a9.c
index df0a9cc5d..3d5000481 100644
--- a/kernel/arch/arm/mach-mvebu/platsmp-a9.c
+++ b/kernel/arch/arm/mach-mvebu/platsmp-a9.c
@@ -24,7 +24,7 @@
 
 extern void mvebu_cortex_a9_secondary_startup(void);
 
-static int __cpuinit mvebu_cortex_a9_boot_secondary(unsigned int cpu,
+static int mvebu_cortex_a9_boot_secondary(unsigned int cpu,
 						    struct task_struct *idle)
 {
 	int ret, hw_cpu;
diff --git a/kernel/arch/arm/mach-mvebu/pm-board.c b/kernel/arch/arm/mach-mvebu/pm-board.c
index 301ab38d3..db17121d7 100644
--- a/kernel/arch/arm/mach-mvebu/pm-board.c
+++ b/kernel/arch/arm/mach-mvebu/pm-board.c
@@ -1,7 +1,7 @@
 /*
  * Board-level suspend/resume support.
  *
- * Copyright (C) 2014 Marvell
+ * Copyright (C) 2014-2015 Marvell
  *
  * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
  *
@@ -20,27 +20,27 @@
 #include <linux/slab.h>
 #include "common.h"
 
-#define ARMADA_XP_GP_PIC_NR_GPIOS 3
+#define ARMADA_PIC_NR_GPIOS 3
 
 static void __iomem *gpio_ctrl;
-static int pic_gpios[ARMADA_XP_GP_PIC_NR_GPIOS];
-static int pic_raw_gpios[ARMADA_XP_GP_PIC_NR_GPIOS];
+static int pic_gpios[ARMADA_PIC_NR_GPIOS];
+static int pic_raw_gpios[ARMADA_PIC_NR_GPIOS];
 
-static void mvebu_armada_xp_gp_pm_enter(void __iomem *sdram_reg, u32 srcmd)
+static void mvebu_armada_pm_enter(void __iomem *sdram_reg, u32 srcmd)
 {
 	u32 reg, ackcmd;
 	int i;
 
 	/* Put 001 as value on the GPIOs */
 	reg = readl(gpio_ctrl);
-	for (i = 0; i < ARMADA_XP_GP_PIC_NR_GPIOS; i++)
+	for (i = 0; i < ARMADA_PIC_NR_GPIOS; i++)
 		reg &= ~BIT(pic_raw_gpios[i]);
 	reg |= BIT(pic_raw_gpios[0]);
 	writel(reg, gpio_ctrl);
 
 	/* Prepare writing 111 to the GPIOs */
 	ackcmd = readl(gpio_ctrl);
-	for (i = 0; i < ARMADA_XP_GP_PIC_NR_GPIOS; i++)
+	for (i = 0; i < ARMADA_PIC_NR_GPIOS; i++)
 		ackcmd |= BIT(pic_raw_gpios[i]);
 
 	srcmd = cpu_to_le32(srcmd);
@@ -76,7 +76,7 @@ static void mvebu_armada_xp_gp_pm_enter(void __iomem *sdram_reg, u32 srcmd)
 		  [ackcmd] "r" (ackcmd), [gpio_ctrl] "r" (gpio_ctrl) : "r1");
 }
 
-static int mvebu_armada_xp_gp_pm_init(void)
+static int __init mvebu_armada_pm_init(void)
 {
 	struct device_node *np;
 	struct device_node *gpio_ctrl_np;
@@ -89,7 +89,7 @@ static int mvebu_armada_xp_gp_pm_init(void)
 	if (!np)
 		return -ENODEV;
 
-	for (i = 0; i < ARMADA_XP_GP_PIC_NR_GPIOS; i++) {
+	for (i = 0; i < ARMADA_PIC_NR_GPIOS; i++) {
 		char *name;
 		struct of_phandle_args args;
 
@@ -134,11 +134,19 @@ static int mvebu_armada_xp_gp_pm_init(void)
 	if (!gpio_ctrl)
 		return -ENOMEM;
 
-	mvebu_pm_init(mvebu_armada_xp_gp_pm_enter);
+	mvebu_pm_suspend_init(mvebu_armada_pm_enter);
 
 out:
 	of_node_put(np);
 	return ret;
 }
 
-late_initcall(mvebu_armada_xp_gp_pm_init);
+/*
+ * Registering the mvebu_board_pm_enter callback must be done before
+ * the platform_suspend_ops will be registered. In the same time we
+ * also need to have the gpio devices registered. That's why we use a
+ * device_initcall_sync which is called after all the device_initcall
+ * (used by the gpio device) but before the late_initcall (used to
+ * register the platform_suspend_ops)
+ */
+device_initcall_sync(mvebu_armada_pm_init);
diff --git a/kernel/arch/arm/mach-mvebu/pm.c b/kernel/arch/arm/mach-mvebu/pm.c
index 6573a8f11..8d32bf762 100644
--- a/kernel/arch/arm/mach-mvebu/pm.c
+++ b/kernel/arch/arm/mach-mvebu/pm.c
@@ -105,12 +105,10 @@ static phys_addr_t mvebu_internal_reg_base(void)
 	return of_translate_address(np, in_addr);
 }
 
-static void mvebu_pm_store_bootinfo(void)
+static void mvebu_pm_store_armadaxp_bootinfo(u32 *store_addr)
 {
-	u32 *store_addr;
 	phys_addr_t resume_pc;
 
-	store_addr = phys_to_virt(BOOT_INFO_ADDR);
 	resume_pc = virt_to_phys(armada_370_xp_cpu_resume);
 
 	/*
@@ -151,14 +149,30 @@ static void mvebu_pm_store_bootinfo(void)
 	writel(BOOT_MAGIC_LIST_END, store_addr);
 }
 
-static int mvebu_pm_enter(suspend_state_t state)
+static int mvebu_pm_store_bootinfo(void)
 {
-	if (state != PM_SUSPEND_MEM)
-		return -EINVAL;
+	u32 *store_addr;
+
+	store_addr = phys_to_virt(BOOT_INFO_ADDR);
+
+	if (of_machine_is_compatible("marvell,armadaxp"))
+		mvebu_pm_store_armadaxp_bootinfo(store_addr);
+	else
+		return -ENODEV;
+
+	return 0;
+}
+
+static int mvebu_enter_suspend(void)
+{
+	int ret;
+
+	ret = mvebu_pm_store_bootinfo();
+	if (ret)
+		return ret;
 
 	cpu_pm_enter();
 
-	mvebu_pm_store_bootinfo();
 	cpu_suspend(0, mvebu_pm_powerdown);
 
 	outer_resume();
@@ -168,23 +182,62 @@ static int mvebu_pm_enter(suspend_state_t state)
 	set_cpu_coherent();
 
 	cpu_pm_exit();
+	return 0;
+}
+
+static int mvebu_pm_enter(suspend_state_t state)
+{
+	switch (state) {
+	case PM_SUSPEND_STANDBY:
+		cpu_do_idle();
+		break;
+	case PM_SUSPEND_MEM:
+		pr_warn("Entering suspend to RAM. Only special wake-up sources will resume the system\n");
+		return mvebu_enter_suspend();
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int mvebu_pm_valid(suspend_state_t state)
+{
+	if (state == PM_SUSPEND_STANDBY)
+		return 1;
+
+	if (state == PM_SUSPEND_MEM && mvebu_board_pm_enter != NULL)
+		return 1;
 
 	return 0;
 }
 
 static const struct platform_suspend_ops mvebu_pm_ops = {
 	.enter = mvebu_pm_enter,
-	.valid = suspend_valid_only_mem,
+	.valid = mvebu_pm_valid,
 };
 
-int mvebu_pm_init(void (*board_pm_enter)(void __iomem *sdram_reg, u32 srcmd))
+static int __init mvebu_pm_init(void)
+{
+	if (!of_machine_is_compatible("marvell,armadaxp") &&
+	    !of_machine_is_compatible("marvell,armada370") &&
+	    !of_machine_is_compatible("marvell,armada380") &&
+	    !of_machine_is_compatible("marvell,armada390"))
+		return -ENODEV;
+
+	suspend_set_ops(&mvebu_pm_ops);
+
+	return 0;
+}
+
+
+late_initcall(mvebu_pm_init);
+
+int __init mvebu_pm_suspend_init(void (*board_pm_enter)(void __iomem *sdram_reg,
+							u32 srcmd))
 {
 	struct device_node *np;
 	struct resource res;
 
-	if (!of_machine_is_compatible("marvell,armadaxp"))
-		return -ENODEV;
-
 	np = of_find_compatible_node(NULL, NULL,
 				     "marvell,armada-xp-sdram-controller");
 	if (!np)
@@ -212,7 +265,5 @@ int mvebu_pm_init(void (*board_pm_enter)(void __iomem *sdram_reg, u32 srcmd))
 
 	mvebu_board_pm_enter = board_pm_enter;
 
-	suspend_set_ops(&mvebu_pm_ops);
-
 	return 0;
 }
diff --git a/kernel/arch/arm/mach-mvebu/pmsu.c b/kernel/arch/arm/mach-mvebu/pmsu.c
index 4f4e22206..ed8fda4cd 100644
--- a/kernel/arch/arm/mach-mvebu/pmsu.c
+++ b/kernel/arch/arm/mach-mvebu/pmsu.c
@@ -296,11 +296,11 @@ int armada_370_xp_pmsu_idle_enter(unsigned long deepidle)
 	/* Test the CR_C bit and set it if it was cleared */
 	asm volatile(
 	"mrc	p15, 0, r0, c1, c0, 0 \n\t"
-	"tst	r0, #(1 << 2) \n\t"
+	"tst	r0, %0 \n\t"
 	"orreq	r0, r0, #(1 << 2) \n\t"
 	"mcreq	p15, 0, r0, c1, c0, 0 \n\t"
 	"isb	"
-	: : : "r0");
+	: : "Ir" (CR_C) : "r0");
 
 	pr_debug("Failed to suspend the system\n");
 
@@ -379,6 +379,16 @@ static struct notifier_block mvebu_v7_cpu_pm_notifier = {
 
 static struct platform_device mvebu_v7_cpuidle_device;
 
+static int broken_idle(struct device_node *np)
+{
+	if (of_property_read_bool(np, "broken-idle")) {
+		pr_warn("CPU idle is currently broken: disabling\n");
+		return 1;
+	}
+
+	return 0;
+}
+
 static __init int armada_370_cpuidle_init(void)
 {
 	struct device_node *np;
@@ -387,7 +397,9 @@ static __init int armada_370_cpuidle_init(void)
 	np = of_find_compatible_node(NULL, NULL, "marvell,coherency-fabric");
 	if (!np)
 		return -ENODEV;
-	of_node_put(np);
+
+	if (broken_idle(np))
+		goto end;
 
 	/*
 	 * On Armada 370, there is "a slow exit process from the deep
@@ -406,6 +418,8 @@ static __init int armada_370_cpuidle_init(void)
 	mvebu_v7_cpuidle_device.dev.platform_data = armada_370_xp_cpu_suspend;
 	mvebu_v7_cpuidle_device.name = "cpuidle-armada-370";
 
+end:
+	of_node_put(np);
 	return 0;
 }
 
@@ -415,13 +429,17 @@ static __init int armada_38x_cpuidle_init(void)
 	void __iomem *mpsoc_base;
 	u32 reg;
 
-	pr_warn("CPU idle is currently broken on Armada 38x: disabling");
+	pr_warn("CPU idle is currently broken on Armada 38x: disabling\n");
 	return 0;
 
 	np = of_find_compatible_node(NULL, NULL,
 				     "marvell,armada-380-coherency-fabric");
 	if (!np)
 		return -ENODEV;
+
+	if (broken_idle(np))
+		goto end;
+
 	of_node_put(np);
 
 	np = of_find_compatible_node(NULL, NULL,
@@ -430,7 +448,6 @@ static __init int armada_38x_cpuidle_init(void)
 		return -ENODEV;
 	mpsoc_base = of_iomap(np, 0);
 	BUG_ON(!mpsoc_base);
-	of_node_put(np);
 
 	/* Set up reset mask when powering down the cpus */
 	reg = readl(mpsoc_base + MPCORE_RESET_CTL);
@@ -450,6 +467,8 @@ static __init int armada_38x_cpuidle_init(void)
 	mvebu_v7_cpuidle_device.dev.platform_data = armada_38x_cpu_suspend;
 	mvebu_v7_cpuidle_device.name = "cpuidle-armada-38x";
 
+end:
+	of_node_put(np);
 	return 0;
 }
 
@@ -460,12 +479,16 @@ static __init int armada_xp_cpuidle_init(void)
 	np = of_find_compatible_node(NULL, NULL, "marvell,coherency-fabric");
 	if (!np)
 		return -ENODEV;
-	of_node_put(np);
+
+	if (broken_idle(np))
+		goto end;
 
 	mvebu_cpu_resume = armada_370_xp_cpu_resume;
 	mvebu_v7_cpuidle_device.dev.platform_data = armada_370_xp_cpu_suspend;
 	mvebu_v7_cpuidle_device.name = "cpuidle-armada-xp";
 
+end:
+	of_node_put(np);
 	return 0;
 }
 
@@ -486,7 +509,7 @@ static int __init mvebu_v7_cpu_pm_init(void)
 	 */
 	if (of_machine_is_compatible("marvell,armada380")) {
 		cpu_hotplug_disable();
-		pr_warn("CPU hotplug support is currently broken on Armada 38x: disabling");
+		pr_warn("CPU hotplug support is currently broken on Armada 38x: disabling\n");
 	}
 
 	if (of_machine_is_compatible("marvell,armadaxp"))