Merge tag 'tegra-for-3.10-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc

From Stephen Warren <swarren@wwwdotorg.org>:

ARM: tegra: core SoC support development

This branch includes major development on the core Tegra SoC support code
in the mach-tegra directory:

* SMP support for Tegra114.
* Exposes SoC chip ID and revision through standard sysfs files.
* System-level suspend/resume for Tegra20/30. At present, this only
  supports "LP2" mode (CPU power-down), but provides the basis to
  implement "LP0"/"LP1" (various levels of core/chip power-down) in the
  hopefully near future.
* A minor cleanup of a duplicate include, which was introduced in this
  branch.

This branch is based on the previous cleanup pull request.

* tag 'tegra-for-3.10-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
  ARM: tegra: pm: remove duplicated include from pm.c
  ARM: tegra: cpuidle: remove redundant parameters for powered-down mode
  ARM: tegra: pm: add platform suspend support
  ARM: dt: tegra: add bindings of power management configurations for PMC
  ARM: tegra: irq: add wake up handling
  gpio: tegra: add gpio wakeup source handling
  ARM: tegra: moving the CPU power timer function to PMC driver
  ARM: tegra: add clock source of PMC to device trees
  ARM: tegra: add speedo-based process id for Tegra114
  ARM: tegra: expose chip ID and revision
  ARM: tegra: bring up secondary CPU for Tegra114

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

31 files changed, 695 insertions, 64 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1e8742b5f839..b6f3dd8ec48f 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -673,6 +673,7 @@ config ARCH_TEGRA
 	select HAVE_CLK
 	select HAVE_SMP
 	select MIGHT_HAVE_CACHE_L2X0
+	select SOC_BUS
 	select SPARSE_IRQ
 	select USE_OF
 	help
diff --git a/arch/arm/boot/dts/tegra114-dalmore.dts b/arch/arm/boot/dts/tegra114-dalmore.dts
index a30aca62658a..6ebc1b704190 100644
--- a/arch/arm/boot/dts/tegra114-dalmore.dts
+++ b/arch/arm/boot/dts/tegra114-dalmore.dts
@@ -18,4 +18,17 @@
 	pmc {
 		nvidia,invert-interrupt;
 	};
+
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		clk32k_in: clock {
+			compatible = "fixed-clock";
+			reg=<0>;
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+		};
+	};
 };
diff --git a/arch/arm/boot/dts/tegra114-pluto.dts b/arch/arm/boot/dts/tegra114-pluto.dts
index 9bea8f57aa47..5deb8692b350 100644
--- a/arch/arm/boot/dts/tegra114-pluto.dts
+++ b/arch/arm/boot/dts/tegra114-pluto.dts
@@ -18,4 +18,17 @@
 	pmc {
 		nvidia,invert-interrupt;
 	};
+
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		clk32k_in: clock {
+			compatible = "fixed-clock";
+			reg=<0>;
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+		};
+	};
 };
diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi
index e4ddeddcd437..c0b527d15fda 100644
--- a/arch/arm/boot/dts/tegra114.dtsi
+++ b/arch/arm/boot/dts/tegra114.dtsi
@@ -101,6 +101,8 @@
 	pmc {
 		compatible = "nvidia,tegra114-pmc";
 		reg = <0x7000e400 0x400>;
+		clocks = <&tegra_car 261>, <&clk32k_in>;
+		clock-names = "pclk", "clk32k_in";
 	};
 
 	iommu {
diff --git a/arch/arm/boot/dts/tegra20-colibri-512.dtsi b/arch/arm/boot/dts/tegra20-colibri-512.dtsi
index cb73e62d61a9..4e3afdef28a8 100644
--- a/arch/arm/boot/dts/tegra20-colibri-512.dtsi
+++ b/arch/arm/boot/dts/tegra20-colibri-512.dtsi
@@ -447,6 +447,19 @@
 		cd-gpios = <&gpio 23 1>; /* gpio PC7 */
 	};
 
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		clk32k_in: clock {
+			compatible = "fixed-clock";
+			reg=<0>;
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+		};
+	};
+
 	sound {
 		compatible = "nvidia,tegra-audio-wm9712-colibri_t20",
 			         "nvidia,tegra-audio-wm9712";
diff --git a/arch/arm/boot/dts/tegra20-harmony.dts b/arch/arm/boot/dts/tegra20-harmony.dts
index 1f79c0debb05..ae9d5a20834e 100644
--- a/arch/arm/boot/dts/tegra20-harmony.dts
+++ b/arch/arm/boot/dts/tegra20-harmony.dts
@@ -451,6 +451,19 @@
 		bus-width = <8>;
 	};
 
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		clk32k_in: clock {
+			compatible = "fixed-clock";
+			reg=<0>;
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+		};
+	};
+
 	kbc {
 		status = "okay";
 		nvidia,debounce-delay-ms = <2>;
diff --git a/arch/arm/boot/dts/tegra20-paz00.dts b/arch/arm/boot/dts/tegra20-paz00.dts
index 9db36da8e023..fd60940e4063 100644
--- a/arch/arm/boot/dts/tegra20-paz00.dts
+++ b/arch/arm/boot/dts/tegra20-paz00.dts
@@ -447,6 +447,19 @@
 		bus-width = <8>;
 	};
 
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		clk32k_in: clock {
+			compatible = "fixed-clock";
+			reg=<0>;
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 
diff --git a/arch/arm/boot/dts/tegra20-seaboard.dts b/arch/arm/boot/dts/tegra20-seaboard.dts
index 715a8b8dd9cd..4ee700a33ca5 100644
--- a/arch/arm/boot/dts/tegra20-seaboard.dts
+++ b/arch/arm/boot/dts/tegra20-seaboard.dts
@@ -595,6 +595,19 @@
 		bus-width = <8>;
 	};
 
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		clk32k_in: clock {
+			compatible = "fixed-clock";
+			reg=<0>;
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 
diff --git a/arch/arm/boot/dts/tegra20-tamonten.dtsi b/arch/arm/boot/dts/tegra20-tamonten.dtsi
index 6e9d91fc6195..c19025725918 100644
--- a/arch/arm/boot/dts/tegra20-tamonten.dtsi
+++ b/arch/arm/boot/dts/tegra20-tamonten.dtsi
@@ -471,6 +471,19 @@
 		status = "okay";
 	};
 
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		clk32k_in: clock {
+			compatible = "fixed-clock";
+			reg=<0>;
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+		};
+	};
+
 	regulators {
 		compatible = "simple-bus";
 
diff --git a/arch/arm/boot/dts/tegra20-trimslice.dts b/arch/arm/boot/dts/tegra20-trimslice.dts
index 98f3e44f2a51..a9f3f06580f5 100644
--- a/arch/arm/boot/dts/tegra20-trimslice.dts
+++ b/arch/arm/boot/dts/tegra20-trimslice.dts
@@ -330,6 +330,19 @@
 		bus-width = <4>;
 	};
 
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		clk32k_in: clock {
+			compatible = "fixed-clock";
+			reg=<0>;
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+		};
+	};
+
 	poweroff {
 		compatible = "gpio-poweroff";
 		gpios = <&gpio 191 1>; /* gpio PX7, active low */
diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts
index 4aef56f2d96a..f544806e9618 100644
--- a/arch/arm/boot/dts/tegra20-ventana.dts
+++ b/arch/arm/boot/dts/tegra20-ventana.dts
@@ -531,6 +531,19 @@
 		bus-width = <8>;
 	};
 
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		clk32k_in: clock {
+			compatible = "fixed-clock";
+			reg=<0>;
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+		};
+	};
+
 	regulators {
 		compatible = "simple-bus";
 		#address-cells = <1>;
diff --git a/arch/arm/boot/dts/tegra20-whistler.dts b/arch/arm/boot/dts/tegra20-whistler.dts
index 5762188c60ad..258cf945f515 100644
--- a/arch/arm/boot/dts/tegra20-whistler.dts
+++ b/arch/arm/boot/dts/tegra20-whistler.dts
@@ -520,6 +520,19 @@
 		bus-width = <8>;
 	};
 
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		clk32k_in: clock {
+			compatible = "fixed-clock";
+			reg=<0>;
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+		};
+	};
+
 	kbc {
 		status = "okay";
 		nvidia,debounce-delay-ms = <20>;
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index ad64c8cc9da7..fc7febc2b386 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -418,6 +418,8 @@
 	pmc {
 		compatible = "nvidia,tegra20-pmc";
 		reg = <0x7000e400 0x400>;
+		clocks = <&tegra_car 110>, <&clk32k_in>;
+		clock-names = "pclk", "clk32k_in";
 	};
 
 	memory-controller@7000f000 {
diff --git a/arch/arm/boot/dts/tegra30-beaver.dts b/arch/arm/boot/dts/tegra30-beaver.dts
index 0a2cd24df853..6248b2445b32 100644
--- a/arch/arm/boot/dts/tegra30-beaver.dts
+++ b/arch/arm/boot/dts/tegra30-beaver.dts
@@ -268,6 +268,19 @@
 		bus-width = <8>;
 	};
 
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		clk32k_in: clock {
+			compatible = "fixed-clock";
+			reg=<0>;
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+		};
+	};
+
 	regulators {
 		compatible = "simple-bus";
 		#address-cells = <1>;
diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi
index 3e2d21018a5b..65bf2b63174e 100644
--- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
+++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
@@ -322,6 +322,19 @@
 		bus-width = <8>;
 	};
 
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		clk32k_in: clock {
+			compatible = "fixed-clock";
+			reg=<0>;
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+		};
+	};
+
 	regulators {
 		compatible = "simple-bus";
 		#address-cells = <1>;
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index 9491edf1a067..9fe7a92b4c85 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -427,6 +427,8 @@
 	pmc {
 		compatible = "nvidia,tegra30-pmc";
 		reg = <0x7000e400 0x400>;
+		clocks = <&tegra_car 218>, <&clk32k_in>;
+		clock-names = "pclk", "clk32k_in";
 	};
 
 	memory-controller {
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index 92703f955a37..e40326d0e29f 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -28,6 +28,7 @@ obj-$(CONFIG_HOTPLUG_CPU)               += hotplug.o
 obj-$(CONFIG_CPU_FREQ)                  += cpu-tegra.o
 obj-$(CONFIG_TEGRA_PCI)			+= pcie.o
 
+obj-$(CONFIG_ARCH_TEGRA_114_SOC)	+= tegra114_speedo.o
 ifeq ($(CONFIG_CPU_IDLE),y)
 obj-$(CONFIG_ARCH_TEGRA_114_SOC)	+= cpuidle-tegra114.o
 endif
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index f0315c95c76d..eb1f3c8c74cc 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -33,6 +33,7 @@
 #include "common.h"
 #include "fuse.h"
 #include "iomap.h"
+#include "irq.h"
 #include "pmc.h"
 #include "apbio.h"
 #include "sleep.h"
@@ -61,8 +62,10 @@ u32 tegra_uart_config[4] = {
 void __init tegra_dt_init_irq(void)
 {
 	tegra_clocks_init();
+	tegra_pmc_init();
 	tegra_init_irq();
 	irqchip_init();
+	tegra_legacy_irq_syscore_init();
 }
 #endif
 
@@ -100,12 +103,12 @@ void __init tegra_init_early(void)
 	tegra_apb_io_init();
 	tegra_init_fuse();
 	tegra_init_cache();
-	tegra_pmc_init();
 	tegra_powergate_init();
 	tegra_hotplug_init();
 }
 
 void __init tegra_init_late(void)
 {
+	tegra_init_suspend();
 	tegra_powergate_debugfs_init();
 }
diff --git a/arch/arm/mach-tegra/cpuidle-tegra20.c b/arch/arm/mach-tegra/cpuidle-tegra20.c
index 825ced4f7a40..8bbbdebed882 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra20.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra20.c
@@ -130,10 +130,6 @@ static bool tegra20_cpu_cluster_power_down(struct cpuidle_device *dev,
 					   struct cpuidle_driver *drv,
 					   int index)
 {
-	struct cpuidle_state *state = &drv->states[index];
-	u32 cpu_on_time = state->exit_latency;
-	u32 cpu_off_time = state->target_residency - state->exit_latency;
-
 	while (tegra20_cpu_is_resettable_soon())
 		cpu_relax();
 
@@ -142,7 +138,7 @@ static bool tegra20_cpu_cluster_power_down(struct cpuidle_device *dev,
 
 	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu);
 
-	tegra_idle_lp2_last(cpu_on_time, cpu_off_time);
+	tegra_idle_lp2_last();
 
 	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
 
diff --git a/arch/arm/mach-tegra/cpuidle-tegra30.c b/arch/arm/mach-tegra/cpuidle-tegra30.c
index 80445ed33d95..c0931c8bb3e5 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra30.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra30.c
@@ -72,10 +72,6 @@ static bool tegra30_cpu_cluster_power_down(struct cpuidle_device *dev,
 					   struct cpuidle_driver *drv,
 					   int index)
 {
-	struct cpuidle_state *state = &drv->states[index];
-	u32 cpu_on_time = state->exit_latency;
-	u32 cpu_off_time = state->target_residency - state->exit_latency;
-
 	/* All CPUs entering LP2 is not working.
 	 * Don't let CPU0 enter LP2 when any secondary CPU is online.
 	 */
@@ -86,7 +82,7 @@ static bool tegra30_cpu_cluster_power_down(struct cpuidle_device *dev,
 
 	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu);
 
-	tegra_idle_lp2_last(cpu_on_time, cpu_off_time);
+	tegra_idle_lp2_last();
 
 	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
 
diff --git a/arch/arm/mach-tegra/fuse.c b/arch/arm/mach-tegra/fuse.c
index f7db0782a6b6..e035cd284a6e 100644
--- a/arch/arm/mach-tegra/fuse.c
+++ b/arch/arm/mach-tegra/fuse.c
@@ -2,6 +2,7 @@
  * arch/arm/mach-tegra/fuse.c
  *
  * Copyright (C) 2010 Google, Inc.
+ * Copyright (c) 2013, NVIDIA CORPORATION.  All rights reserved.
  *
  * Author:
  *	Colin Cross <ccross@android.com>
@@ -137,6 +138,9 @@ void tegra_init_fuse(void)
 		tegra_fuse_spare_bit = TEGRA30_FUSE_SPARE_BIT;
 		tegra_init_speedo_data = &tegra30_init_speedo_data;
 		break;
+	case TEGRA114:
+		tegra_init_speedo_data = &tegra114_init_speedo_data;
+		break;
 	default:
 		pr_warn("Tegra: unknown chip id %d\n", tegra_chip_id);
 		tegra_fuse_spare_bit = TEGRA20_FUSE_SPARE_BIT;
diff --git a/arch/arm/mach-tegra/fuse.h b/arch/arm/mach-tegra/fuse.h
index da78434678c7..aacc00d05980 100644
--- a/arch/arm/mach-tegra/fuse.h
+++ b/arch/arm/mach-tegra/fuse.h
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2010 Google, Inc.
+ * Copyright (c) 2013, NVIDIA CORPORATION.  All rights reserved.
  *
  * Author:
  *	Colin Cross <ccross@android.com>
@@ -66,4 +67,10 @@ void tegra30_init_speedo_data(void);
 static inline void tegra30_init_speedo_data(void) {}
 #endif
 
+#ifdef CONFIG_ARCH_TEGRA_114_SOC
+void tegra114_init_speedo_data(void);
+#else
+static inline void tegra114_init_speedo_data(void) {}
+#endif
+
 #endif
diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
index 1952e82797cc..0de4eed1493d 100644
--- a/arch/arm/mach-tegra/irq.c
+++ b/arch/arm/mach-tegra/irq.c
@@ -4,7 +4,7 @@
  * Author:
  *	Colin Cross <ccross@android.com>
  *
- * Copyright (C) 2010, NVIDIA Corporation
+ * Copyright (C) 2010,2013, NVIDIA Corporation
  *
  * This software is licensed under the terms of the GNU General Public
  * License version 2, as published by the Free Software Foundation, and
@@ -23,6 +23,7 @@
 #include <linux/io.h>
 #include <linux/of.h>
 #include <linux/irqchip/arm-gic.h>
+#include <linux/syscore_ops.h>
 
 #include "board.h"
 #include "iomap.h"
@@ -43,6 +44,7 @@
 #define ICTLR_COP_IEP_CLASS	0x3c
 
 #define FIRST_LEGACY_IRQ 32
+#define TEGRA_MAX_NUM_ICTLRS	5
 
 #define SGI_MASK 0xFFFF
 
@@ -56,6 +58,15 @@ static void __iomem *ictlr_reg_base[] = {
 	IO_ADDRESS(TEGRA_QUINARY_ICTLR_BASE),
 };
 
+#ifdef CONFIG_PM_SLEEP
+static u32 cop_ier[TEGRA_MAX_NUM_ICTLRS];
+static u32 cop_iep[TEGRA_MAX_NUM_ICTLRS];
+static u32 cpu_ier[TEGRA_MAX_NUM_ICTLRS];
+static u32 cpu_iep[TEGRA_MAX_NUM_ICTLRS];
+
+static u32 ictlr_wake_mask[TEGRA_MAX_NUM_ICTLRS];
+#endif
+
 bool tegra_pending_sgi(void)
 {
 	u32 pending_set;
@@ -125,6 +136,87 @@ static int tegra_retrigger(struct irq_data *d)
 	return 1;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int tegra_set_wake(struct irq_data *d, unsigned int enable)
+{
+	u32 irq = d->irq;
+	u32 index, mask;
+
+	if (irq < FIRST_LEGACY_IRQ ||
+		irq >= FIRST_LEGACY_IRQ + num_ictlrs * 32)
+		return -EINVAL;
+
+	index = ((irq - FIRST_LEGACY_IRQ) / 32);
+	mask = BIT((irq - FIRST_LEGACY_IRQ) % 32);
+	if (enable)
+		ictlr_wake_mask[index] |= mask;
+	else
+		ictlr_wake_mask[index] &= ~mask;
+
+	return 0;
+}
+
+static int tegra_legacy_irq_suspend(void)
+{
+	unsigned long flags;
+	int i;
+
+	local_irq_save(flags);
+	for (i = 0; i < num_ictlrs; i++) {
+		void __iomem *ictlr = ictlr_reg_base[i];
+		/* Save interrupt state */
+		cpu_ier[i] = readl_relaxed(ictlr + ICTLR_CPU_IER);
+		cpu_iep[i] = readl_relaxed(ictlr + ICTLR_CPU_IEP_CLASS);
+		cop_ier[i] = readl_relaxed(ictlr + ICTLR_COP_IER);
+		cop_iep[i] = readl_relaxed(ictlr + ICTLR_COP_IEP_CLASS);
+
+		/* Disable COP interrupts */
+		writel_relaxed(~0ul, ictlr + ICTLR_COP_IER_CLR);
+
+		/* Disable CPU interrupts */
+		writel_relaxed(~0ul, ictlr + ICTLR_CPU_IER_CLR);
+
+		/* Enable the wakeup sources of ictlr */
+		writel_relaxed(ictlr_wake_mask[i], ictlr + ICTLR_CPU_IER_SET);
+	}
+	local_irq_restore(flags);
+
+	return 0;
+}
+
+static void tegra_legacy_irq_resume(void)
+{
+	unsigned long flags;
+	int i;
+
+	local_irq_save(flags);
+	for (i = 0; i < num_ictlrs; i++) {
+		void __iomem *ictlr = ictlr_reg_base[i];
+		writel_relaxed(cpu_iep[i], ictlr + ICTLR_CPU_IEP_CLASS);
+		writel_relaxed(~0ul, ictlr + ICTLR_CPU_IER_CLR);
+		writel_relaxed(cpu_ier[i], ictlr + ICTLR_CPU_IER_SET);
+		writel_relaxed(cop_iep[i], ictlr + ICTLR_COP_IEP_CLASS);
+		writel_relaxed(~0ul, ictlr + ICTLR_COP_IER_CLR);
+		writel_relaxed(cop_ier[i], ictlr + ICTLR_COP_IER_SET);
+	}
+	local_irq_restore(flags);
+}
+
+static struct syscore_ops tegra_legacy_irq_syscore_ops = {
+	.suspend = tegra_legacy_irq_suspend,
+	.resume = tegra_legacy_irq_resume,
+};
+
+int tegra_legacy_irq_syscore_init(void)
+{
+	register_syscore_ops(&tegra_legacy_irq_syscore_ops);
+
+	return 0;
+}
+#else
+#define tegra_set_wake NULL
+#endif
+
 void __init tegra_init_irq(void)
 {
 	int i;
@@ -150,6 +242,8 @@ void __init tegra_init_irq(void)
 	gic_arch_extn.irq_mask = tegra_mask;
 	gic_arch_extn.irq_unmask = tegra_unmask;
 	gic_arch_extn.irq_retrigger = tegra_retrigger;
+	gic_arch_extn.irq_set_wake = tegra_set_wake;
+	gic_arch_extn.flags = IRQCHIP_MASK_ON_SUSPEND;
 
 	/*
 	 * Check if there is a devicetree present, since the GIC will be
diff --git a/arch/arm/mach-tegra/irq.h b/arch/arm/mach-tegra/irq.h
index 5142649bba05..bc05ce5613fb 100644
--- a/arch/arm/mach-tegra/irq.h
+++ b/arch/arm/mach-tegra/irq.h
@@ -19,4 +19,10 @@
 
 bool tegra_pending_sgi(void);
 
+#ifdef CONFIG_PM_SLEEP
+int tegra_legacy_irq_syscore_init(void);
+#else
+static inline int tegra_legacy_irq_syscore_init(void) { return 0; }
+#endif
+
 #endif
diff --git a/arch/arm/mach-tegra/platsmp.c b/arch/arm/mach-tegra/platsmp.c
index 601bd0c3f983..516aab28fe34 100644
--- a/arch/arm/mach-tegra/platsmp.c
+++ b/arch/arm/mach-tegra/platsmp.c
@@ -146,6 +146,12 @@ remove_clamps:
 	return 0;
 }
 
+static int tegra114_boot_secondary(unsigned int cpu, struct task_struct *idle)
+{
+	cpu = cpu_logical_map(cpu);
+	return tegra_pmc_cpu_power_on(cpu);
+}
+
 static int __cpuinit tegra_boot_secondary(unsigned int cpu,
 					  struct task_struct *idle)
 {
@@ -153,6 +159,8 @@ static int __cpuinit tegra_boot_secondary(unsigned int cpu,
 		return tegra20_boot_secondary(cpu, idle);
 	if (IS_ENABLED(CONFIG_ARCH_TEGRA_3x_SOC) && tegra_chip_id == TEGRA30)
 		return tegra30_boot_secondary(cpu, idle);
+	if (IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) && tegra_chip_id == TEGRA114)
+		return tegra114_boot_secondary(cpu, idle);
 
 	return -EINVAL;
 }
diff --git a/arch/arm/mach-tegra/pm.c b/arch/arm/mach-tegra/pm.c
index acacbe8d1afc..d647e9e0e197 100644
--- a/arch/arm/mach-tegra/pm.c
+++ b/arch/arm/mach-tegra/pm.c
@@ -22,7 +22,7 @@
 #include <linux/cpumask.h>
 #include <linux/delay.h>
 #include <linux/cpu_pm.h>
-#include <linux/clk.h>
+#include <linux/suspend.h>
 #include <linux/err.h>
 #include <linux/clk/tegra.h>
 
@@ -37,52 +37,13 @@
 #include "reset.h"
 #include "flowctrl.h"
 #include "fuse.h"
+#include "pmc.h"
 #include "sleep.h"
 
-#define TEGRA_POWER_CPU_PWRREQ_OE	(1 << 16)  /* CPU pwr req enable */
-
-#define PMC_CTRL		0x0
-#define PMC_CPUPWRGOOD_TIMER	0xc8
-#define PMC_CPUPWROFF_TIMER	0xcc
-
 #ifdef CONFIG_PM_SLEEP
 static DEFINE_SPINLOCK(tegra_lp2_lock);
-static void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
-static struct clk *tegra_pclk;
 void (*tegra_tear_down_cpu)(void);
 
-static void set_power_timers(unsigned long us_on, unsigned long us_off)
-{
-	unsigned long long ticks;
-	unsigned long long pclk;
-	unsigned long rate;
-	static unsigned long tegra_last_pclk;
-
-	if (tegra_pclk == NULL) {
-		tegra_pclk = clk_get_sys(NULL, "pclk");
-		WARN_ON(IS_ERR(tegra_pclk));
-	}
-
-	rate = clk_get_rate(tegra_pclk);
-
-	if (WARN_ON_ONCE(rate <= 0))
-		pclk = 100000000;
-	else
-		pclk = rate;
-
-	if ((rate != tegra_last_pclk)) {
-		ticks = (us_on * pclk) + 999999ull;
-		do_div(ticks, 1000000);
-		writel((unsigned long)ticks, pmc + PMC_CPUPWRGOOD_TIMER);
-
-		ticks = (us_off * pclk) + 999999ull;
-		do_div(ticks, 1000000);
-		writel((unsigned long)ticks, pmc + PMC_CPUPWROFF_TIMER);
-		wmb();
-	}
-	tegra_last_pclk = pclk;
-}
-
 /*
  * restore_cpu_complex
  *
@@ -173,16 +134,9 @@ static int tegra_sleep_cpu(unsigned long v2p)
 	return 0;
 }
 
-void tegra_idle_lp2_last(u32 cpu_on_time, u32 cpu_off_time)
+void tegra_idle_lp2_last(void)
 {
-	u32 mode;
-
-	/* Only the last cpu down does the final suspend steps */
-	mode = readl(pmc + PMC_CTRL);
-	mode |= TEGRA_POWER_CPU_PWRREQ_OE;
-	writel(mode, pmc + PMC_CTRL);
-
-	set_power_timers(cpu_on_time, cpu_off_time);
+	tegra_pmc_pm_set(TEGRA_SUSPEND_LP2);
 
 	cpu_cluster_pm_enter();
 	suspend_cpu_complex();
@@ -192,4 +146,81 @@ void tegra_idle_lp2_last(u32 cpu_on_time, u32 cpu_off_time)
 	restore_cpu_complex();
 	cpu_cluster_pm_exit();
 }
+
+enum tegra_suspend_mode tegra_pm_validate_suspend_mode(
+				enum tegra_suspend_mode mode)
+{
+	/* Tegra114 didn't support any suspending mode yet. */
+	if (tegra_chip_id == TEGRA114)
+		return TEGRA_SUSPEND_NONE;
+
+	/*
+	 * The Tegra devices only support suspending to LP2 currently.
+	 */
+	if (mode > TEGRA_SUSPEND_LP2)
+		return TEGRA_SUSPEND_LP2;
+
+	return mode;
+}
+
+static const char *lp_state[TEGRA_MAX_SUSPEND_MODE] = {
+	[TEGRA_SUSPEND_NONE] = "none",
+	[TEGRA_SUSPEND_LP2] = "LP2",
+	[TEGRA_SUSPEND_LP1] = "LP1",
+	[TEGRA_SUSPEND_LP0] = "LP0",
+};
+
+static int __cpuinit tegra_suspend_enter(suspend_state_t state)
+{
+	enum tegra_suspend_mode mode = tegra_pmc_get_suspend_mode();
+
+	if (WARN_ON(mode < TEGRA_SUSPEND_NONE ||
+		    mode >= TEGRA_MAX_SUSPEND_MODE))
+		return -EINVAL;
+
+	pr_info("Entering suspend state %s\n", lp_state[mode]);
+
+	tegra_pmc_pm_set(mode);
+
+	local_fiq_disable();
+
+	suspend_cpu_complex();
+	switch (mode) {
+	case TEGRA_SUSPEND_LP2:
+		tegra_set_cpu_in_lp2(0);
+		break;
+	default:
+		break;
+	}
+
+	cpu_suspend(PHYS_OFFSET - PAGE_OFFSET, &tegra_sleep_cpu);
+
+	switch (mode) {
+	case TEGRA_SUSPEND_LP2:
+		tegra_clear_cpu_in_lp2(0);
+		break;
+	default:
+		break;
+	}
+	restore_cpu_complex();
+
+	local_fiq_enable();
+
+	return 0;
+}
+
+static const struct platform_suspend_ops tegra_suspend_ops = {
+	.valid		= suspend_valid_only_mem,
+	.enter		= tegra_suspend_enter,
+};
+
+void __init tegra_init_suspend(void)
+{
+	if (tegra_pmc_get_suspend_mode() == TEGRA_SUSPEND_NONE)
+		return;
+
+	tegra_pmc_suspend_init();
+
+	suspend_set_ops(&tegra_suspend_ops);
+}
 #endif
diff --git a/arch/arm/mach-tegra/pm.h b/arch/arm/mach-tegra/pm.h
index 787335cc964c..9d2d038bf12e 100644
--- a/arch/arm/mach-tegra/pm.h
+++ b/arch/arm/mach-tegra/pm.h
@@ -21,6 +21,8 @@
 #ifndef _MACH_TEGRA_PM_H_
 #define _MACH_TEGRA_PM_H_
 
+#include "pmc.h"
+
 extern unsigned long l2x0_saved_regs_addr;
 
 void save_cpu_arch_register(void);
@@ -29,7 +31,20 @@ void restore_cpu_arch_register(void);
 void tegra_clear_cpu_in_lp2(int phy_cpu_id);
 bool tegra_set_cpu_in_lp2(int phy_cpu_id);
 
-void tegra_idle_lp2_last(u32 cpu_on_time, u32 cpu_off_time);
+void tegra_idle_lp2_last(void);
 extern void (*tegra_tear_down_cpu)(void);
 
+#ifdef CONFIG_PM_SLEEP
+enum tegra_suspend_mode tegra_pm_validate_suspend_mode(
+				enum tegra_suspend_mode mode);
+void tegra_init_suspend(void);
+#else
+enum tegra_suspend_mode tegra_pm_validate_suspend_mode(
+				enum tegra_suspend_mode mode)
+{
+	return TEGRA_SUSPEND_NONE;
+}
+static inline void tegra_init_suspend(void) {}
+#endif
+
 #endif /* _MACH_TEGRA_PM_H_ */
diff --git a/arch/arm/mach-tegra/pmc.c b/arch/arm/mach-tegra/pmc.c
index b30e921cc3a9..32360e540ce6 100644
--- a/arch/arm/mach-tegra/pmc.c
+++ b/arch/arm/mach-tegra/pmc.c
@@ -16,10 +16,20 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
 
+#include "fuse.h"
+#include "pm.h"
+#include "pmc.h"
+#include "sleep.h"
+
+#define TEGRA_POWER_EFFECT_LP0		(1 << 14)  /* LP0 when CPU pwr gated */
+#define TEGRA_POWER_CPU_PWRREQ_POLARITY	(1 << 15)  /* CPU pwr req polarity */
+#define TEGRA_POWER_CPU_PWRREQ_OE	(1 << 16)  /* CPU pwr req enable */
+
 #define PMC_CTRL			0x0
 #define PMC_CTRL_INTR_LOW		(1 << 17)
 #define PMC_PWRGATE_TOGGLE		0x30
@@ -27,6 +37,9 @@
 #define PMC_REMOVE_CLAMPING		0x34
 #define PMC_PWRGATE_STATUS		0x38
 
+#define PMC_CPUPWRGOOD_TIMER	0xc8
+#define PMC_CPUPWROFF_TIMER	0xcc
+
 #define TEGRA_POWERGATE_PCIE	3
 #define TEGRA_POWERGATE_VDEC	4
 #define TEGRA_POWERGATE_CPU1	9
@@ -43,6 +56,23 @@ static DEFINE_SPINLOCK(tegra_powergate_lock);
 
 static void __iomem *tegra_pmc_base;
 static bool tegra_pmc_invert_interrupt;
+static struct clk *tegra_pclk;
+
+struct pmc_pm_data {
+	u32 cpu_good_time;	/* CPU power good time in uS */
+	u32 cpu_off_time;	/* CPU power off time in uS */
+	u32 core_osc_time;	/* Core power good osc time in uS */
+	u32 core_pmu_time;	/* Core power good pmu time in uS */
+	u32 core_off_time;	/* Core power off time in uS */
+	bool corereq_high;	/* Core power request active-high */
+	bool sysclkreq_high;	/* System clock request active-high */
+	bool combined_req;	/* Combined pwr req for CPU & Core */
+	bool cpu_pwr_good_en;	/* CPU power good signal is enabled */
+	u32 lp0_vec_phy_addr;	/* The phy addr of LP0 warm boot code */
+	u32 lp0_vec_size;	/* The size of LP0 warm boot code */
+	enum tegra_suspend_mode suspend_mode;
+};
+static struct pmc_pm_data pmc_pm_data;
 
 static inline u32 tegra_pmc_readl(u32 reg)
 {
@@ -133,6 +163,70 @@ int tegra_pmc_cpu_remove_clamping(int cpuid)
 	return tegra_pmc_powergate_remove_clamping(id);
 }
 
+#ifdef CONFIG_PM_SLEEP
+static void set_power_timers(u32 us_on, u32 us_off, unsigned long rate)
+{
+	unsigned long long ticks;
+	unsigned long long pclk;
+	static unsigned long tegra_last_pclk;
+
+	if (WARN_ON_ONCE(rate <= 0))
+		pclk = 100000000;
+	else
+		pclk = rate;
+
+	if ((rate != tegra_last_pclk)) {
+		ticks = (us_on * pclk) + 999999ull;
+		do_div(ticks, 1000000);
+		tegra_pmc_writel((unsigned long)ticks, PMC_CPUPWRGOOD_TIMER);
+
+		ticks = (us_off * pclk) + 999999ull;
+		do_div(ticks, 1000000);
+		tegra_pmc_writel((unsigned long)ticks, PMC_CPUPWROFF_TIMER);
+		wmb();
+	}
+	tegra_last_pclk = pclk;
+}
+
+enum tegra_suspend_mode tegra_pmc_get_suspend_mode(void)
+{
+	return pmc_pm_data.suspend_mode;
+}
+
+void tegra_pmc_pm_set(enum tegra_suspend_mode mode)
+{
+	u32 reg;
+	unsigned long rate = 0;
+
+	reg = tegra_pmc_readl(PMC_CTRL);
+	reg |= TEGRA_POWER_CPU_PWRREQ_OE;
+	reg &= ~TEGRA_POWER_EFFECT_LP0;
+
+	switch (mode) {
+	case TEGRA_SUSPEND_LP2:
+		rate = clk_get_rate(tegra_pclk);
+		break;
+	default:
+		break;
+	}
+
+	set_power_timers(pmc_pm_data.cpu_good_time, pmc_pm_data.cpu_off_time,
+			 rate);
+
+	tegra_pmc_writel(reg, PMC_CTRL);
+}
+
+void tegra_pmc_suspend_init(void)
+{
+	u32 reg;
+
+	/* Always enable CPU power request */
+	reg = tegra_pmc_readl(PMC_CTRL);
+	reg |= TEGRA_POWER_CPU_PWRREQ_OE;
+	tegra_pmc_writel(reg, PMC_CTRL);
+}
+#endif
+
 static const struct of_device_id matches[] __initconst = {
 	{ .compatible = "nvidia,tegra114-pmc" },
 	{ .compatible = "nvidia,tegra30-pmc" },
@@ -143,6 +237,10 @@ static const struct of_device_id matches[] __initconst = {
 static void tegra_pmc_parse_dt(void)
 {
 	struct device_node *np;
+	u32 prop;
+	enum tegra_suspend_mode suspend_mode;
+	u32 core_good_time[2] = {0, 0};
+	u32 lp0_vec[2] = {0, 0};
 
 	np = of_find_matching_node(NULL, matches);
 	BUG_ON(!np);
@@ -151,6 +249,70 @@ static void tegra_pmc_parse_dt(void)
 
 	tegra_pmc_invert_interrupt = of_property_read_bool(np,
 				     "nvidia,invert-interrupt");
+	tegra_pclk = of_clk_get_by_name(np, "pclk");
+	WARN_ON(IS_ERR(tegra_pclk));
+
+	/* Grabbing the power management configurations */
+	if (of_property_read_u32(np, "nvidia,suspend-mode", &prop)) {
+		suspend_mode = TEGRA_SUSPEND_NONE;
+	} else {
+		switch (prop) {
+		case 0:
+			suspend_mode = TEGRA_SUSPEND_LP0;
+			break;
+		case 1:
+			suspend_mode = TEGRA_SUSPEND_LP1;
+			break;
+		case 2:
+			suspend_mode = TEGRA_SUSPEND_LP2;
+			break;
+		default:
+			suspend_mode = TEGRA_SUSPEND_NONE;
+			break;
+		}
+	}
+	suspend_mode = tegra_pm_validate_suspend_mode(suspend_mode);
+
+	if (of_property_read_u32(np, "nvidia,cpu-pwr-good-time", &prop))
+		suspend_mode = TEGRA_SUSPEND_NONE;
+	pmc_pm_data.cpu_good_time = prop;
+
+	if (of_property_read_u32(np, "nvidia,cpu-pwr-off-time", &prop))
+		suspend_mode = TEGRA_SUSPEND_NONE;
+	pmc_pm_data.cpu_off_time = prop;
+
+	if (of_property_read_u32_array(np, "nvidia,core-pwr-good-time",
+			core_good_time, ARRAY_SIZE(core_good_time)))
+		suspend_mode = TEGRA_SUSPEND_NONE;
+	pmc_pm_data.core_osc_time = core_good_time[0];
+	pmc_pm_data.core_pmu_time = core_good_time[1];
+
+	if (of_property_read_u32(np, "nvidia,core-pwr-off-time",
+				 &prop))
+		suspend_mode = TEGRA_SUSPEND_NONE;
+	pmc_pm_data.core_off_time = prop;
+
+	pmc_pm_data.corereq_high = of_property_read_bool(np,
+				"nvidia,core-power-req-active-high");
+
+	pmc_pm_data.sysclkreq_high = of_property_read_bool(np,
+				"nvidia,sys-clock-req-active-high");
+
+	pmc_pm_data.combined_req = of_property_read_bool(np,
+				"nvidia,combined-power-req");
+
+	pmc_pm_data.cpu_pwr_good_en = of_property_read_bool(np,
+				"nvidia,cpu-pwr-good-en");
+
+	if (of_property_read_u32_array(np, "nvidia,lp0-vec", lp0_vec,
+				       ARRAY_SIZE(lp0_vec)))
+		if (suspend_mode == TEGRA_SUSPEND_LP0)
+			suspend_mode = TEGRA_SUSPEND_LP1;
+
+	pmc_pm_data.lp0_vec_phy_addr = lp0_vec[0];
+	pmc_pm_data.lp0_vec_size = lp0_vec[1];
+
+	pmc_pm_data.suspend_mode = suspend_mode;
 }
 
 void __init tegra_pmc_init(void)
diff --git a/arch/arm/mach-tegra/pmc.h b/arch/arm/mach-tegra/pmc.h
index 7d44710368be..e1c2df272f7d 100644
--- a/arch/arm/mach-tegra/pmc.h
+++ b/arch/arm/mach-tegra/pmc.h
@@ -18,6 +18,20 @@
 #ifndef __MACH_TEGRA_PMC_H
 #define __MACH_TEGRA_PMC_H
 
+enum tegra_suspend_mode {
+	TEGRA_SUSPEND_NONE = 0,
+	TEGRA_SUSPEND_LP2,	/* CPU voltage off */
+	TEGRA_SUSPEND_LP1,	/* CPU voltage off, DRAM self-refresh */
+	TEGRA_SUSPEND_LP0,      /* CPU + core voltage off, DRAM self-refresh */
+	TEGRA_MAX_SUSPEND_MODE,
+};
+
+#ifdef CONFIG_PM_SLEEP
+enum tegra_suspend_mode tegra_pmc_get_suspend_mode(void);
+void tegra_pmc_pm_set(enum tegra_suspend_mode mode);
+void tegra_pmc_suspend_init(void);
+#endif
+
 bool tegra_pmc_cpu_is_powered(int cpuid);
 int tegra_pmc_cpu_power_on(int cpuid);
 int tegra_pmc_cpu_remove_clamping(int cpuid);
diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index 27232c901a22..84deeab23ee7 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -33,6 +33,8 @@
 #include <linux/io.h>
 #include <linux/i2c.h>
 #include <linux/i2c-tegra.h>
+#include <linux/slab.h>
+#include <linux/sys_soc.h>
 #include <linux/usb/tegra_usb_phy.h>
 
 #include <asm/mach-types.h>
@@ -42,6 +44,7 @@
 
 #include "board.h"
 #include "common.h"
+#include "fuse.h"
 #include "iomap.h"
 
 static struct tegra_ehci_platform_data tegra_ehci1_pdata = {
@@ -80,12 +83,36 @@ static struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = {
 
 static void __init tegra_dt_init(void)
 {
+	struct soc_device_attribute *soc_dev_attr;
+	struct soc_device *soc_dev;
+	struct device *parent = NULL;
+
+	soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+	if (!soc_dev_attr)
+		goto out;
+
+	soc_dev_attr->family = kasprintf(GFP_KERNEL, "Tegra");
+	soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%d", tegra_revision);
+	soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "%d", tegra_chip_id);
+
+	soc_dev = soc_device_register(soc_dev_attr);
+	if (IS_ERR(soc_dev)) {
+		kfree(soc_dev_attr->family);
+		kfree(soc_dev_attr->revision);
+		kfree(soc_dev_attr->soc_id);
+		kfree(soc_dev_attr);
+		goto out;
+	}
+
+	parent = soc_device_to_device(soc_dev);
+
 	/*
 	 * Finished with the static registrations now; fill in the missing
 	 * devices
 	 */
+out:
 	of_platform_populate(NULL, of_default_bus_match_table,
-				tegra20_auxdata_lookup, NULL);
+				tegra20_auxdata_lookup, parent);
 }
 
 static void __init trimslice_init(void)
diff --git a/arch/arm/mach-tegra/tegra114_speedo.c b/arch/arm/mach-tegra/tegra114_speedo.c
new file mode 100644
index 000000000000..5218d4853cd3
--- /dev/null
+++ b/arch/arm/mach-tegra/tegra114_speedo.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2013, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/kernel.h>
+#include <linux/bug.h>
+
+#include "fuse.h"
+
+#define CORE_PROCESS_CORNERS_NUM	2
+#define CPU_PROCESS_CORNERS_NUM		2
+
+enum {
+	THRESHOLD_INDEX_0,
+	THRESHOLD_INDEX_1,
+	THRESHOLD_INDEX_COUNT,
+};
+
+static const u32 core_process_speedos[][CORE_PROCESS_CORNERS_NUM] = {
+	{1123,     UINT_MAX},
+	{0,        UINT_MAX},
+};
+
+static const u32 cpu_process_speedos[][CPU_PROCESS_CORNERS_NUM] = {
+	{1695,     UINT_MAX},
+	{0,        UINT_MAX},
+};
+
+static void rev_sku_to_speedo_ids(int rev, int sku, int *threshold)
+{
+	u32 tmp;
+
+	switch (sku) {
+	case 0x00:
+	case 0x10:
+	case 0x05:
+	case 0x06:
+		tegra_cpu_speedo_id = 1;
+		tegra_soc_speedo_id = 0;
+		*threshold = THRESHOLD_INDEX_0;
+		break;
+
+	case 0x03:
+	case 0x04:
+		tegra_cpu_speedo_id = 2;
+		tegra_soc_speedo_id = 1;
+		*threshold = THRESHOLD_INDEX_1;
+		break;
+
+	default:
+		pr_err("Tegra114 Unknown SKU %d\n", sku);
+		tegra_cpu_speedo_id = 0;
+		tegra_soc_speedo_id = 0;
+		*threshold = THRESHOLD_INDEX_0;
+		break;
+	}
+
+	if (rev == TEGRA_REVISION_A01) {
+		tmp = tegra_fuse_readl(0x270) << 1;
+		tmp |= tegra_fuse_readl(0x26c);
+		if (!tmp)
+			tegra_cpu_speedo_id = 0;
+	}
+}
+
+void tegra114_init_speedo_data(void)
+{
+	u32 cpu_speedo_val;
+	u32 core_speedo_val;
+	int threshold;
+	int i;
+
+	BUILD_BUG_ON(ARRAY_SIZE(cpu_process_speedos) !=
+			THRESHOLD_INDEX_COUNT);
+	BUILD_BUG_ON(ARRAY_SIZE(core_process_speedos) !=
+			THRESHOLD_INDEX_COUNT);
+
+	rev_sku_to_speedo_ids(tegra_revision, tegra_sku_id, &threshold);
+
+	cpu_speedo_val = tegra_fuse_readl(0x12c) + 1024;
+	core_speedo_val = tegra_fuse_readl(0x134);
+
+	for (i = 0; i < CPU_PROCESS_CORNERS_NUM; i++)
+		if (cpu_speedo_val < cpu_process_speedos[threshold][i])
+			break;
+	tegra_cpu_process_id = i;
+
+	for (i = 0; i < CORE_PROCESS_CORNERS_NUM; i++)
+		if (core_speedo_val < core_process_speedos[threshold][i])
+			break;
+	tegra_core_process_id = i;
+}