Merge branch 'tegra/soc' into next/drivers

This is a dependency for the tegra/clk branch.

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

Conflicts:
	drivers/clocksource/tegra20_timer.c

43 files changed, 1044 insertions, 405 deletions

diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
index b5846e21cc2..1608a54e90e 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
@@ -1,19 +1,84 @@
 NVIDIA Tegra Power Management Controller (PMC)
 
-Properties:
+The PMC block interacts with an external Power Management Unit. The PMC
+mostly controls the entry and exit of the system from different sleep
+modes. It provides power-gating controllers for SoC and CPU power-islands.
+
+Required properties:
 - name : Should be pmc
 - compatible : Should contain "nvidia,tegra<chip>-pmc".
 - reg : Offset and length of the register set for the device
+- clocks : Must contain an entry for each entry in clock-names.
+- clock-names : Must include the following entries:
+  "pclk" (The Tegra clock of that name),
+  "clk32k_in" (The 32KHz clock input to Tegra).
+
+Optional properties:
 - nvidia,invert-interrupt : If present, inverts the PMU interrupt signal.
   The PMU is an external Power Management Unit, whose interrupt output
   signal is fed into the PMC. This signal is optionally inverted, and then
   fed into the ARM GIC. The PMC is not involved in the detection or
   handling of this interrupt signal, merely its inversion.
+- nvidia,suspend-mode : The suspend mode that the platform should use.
+  Valid values are 0, 1 and 2:
+  0 (LP0): CPU + Core voltage off and DRAM in self-refresh
+  1 (LP1): CPU voltage off and DRAM in self-refresh
+  2 (LP2): CPU voltage off
+- nvidia,core-power-req-active-high : Boolean, core power request active-high
+- nvidia,sys-clock-req-active-high : Boolean, system clock request active-high
+- nvidia,combined-power-req : Boolean, combined power request for CPU & Core
+- nvidia,cpu-pwr-good-en : Boolean, CPU power good signal (from PMIC to PMC)
+			   is enabled.
+
+Required properties when nvidia,suspend-mode is specified:
+- nvidia,cpu-pwr-good-time : CPU power good time in uS.
+- nvidia,cpu-pwr-off-time : CPU power off time in uS.
+- nvidia,core-pwr-good-time : <Oscillator-stable-time Power-stable-time>
+			      Core power good time in uS.
+- nvidia,core-pwr-off-time : Core power off time in uS.
+
+Required properties when nvidia,suspend-mode=<0>:
+- nvidia,lp0-vec : <start length> Starting address and length of LP0 vector
+  The LP0 vector contains the warm boot code that is executed by AVP when
+  resuming from the LP0 state. The AVP (Audio-Video Processor) is an ARM7
+  processor and always being the first boot processor when chip is power on
+  or resume from deep sleep mode. When the system is resumed from the deep
+  sleep mode, the warm boot code will restore some PLLs, clocks and then
+  bring up CPU0 for resuming the system.
 
 Example:
 
+/ SoC dts including file
 pmc@7000f400 {
 	compatible = "nvidia,tegra20-pmc";
 	reg = <0x7000e400 0x400>;
+	clocks = <&tegra_car 110>, <&clk32k_in>;
+	clock-names = "pclk", "clk32k_in";
 	nvidia,invert-interrupt;
+	nvidia,suspend-mode = <1>;
+	nvidia,cpu-pwr-good-time = <2000>;
+	nvidia,cpu-pwr-off-time = <100>;
+	nvidia,core-pwr-good-time = <3845 3845>;
+	nvidia,core-pwr-off-time = <458>;
+	nvidia,core-power-req-active-high;
+	nvidia,sys-clock-req-active-high;
+	nvidia,lp0-vec = <0xbdffd000 0x2000>;
+};
+
+/ Tegra board dts file
+{
+	...
+	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/Kconfig b/arch/arm/Kconfig
index eb91022b90b..ada582b15cf 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 a30aca62658..6ebc1b70419 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 9bea8f57aa4..5deb8692b35 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 1dfaf2874c5..c0b527d15fd 100644
--- a/arch/arm/boot/dts/tegra114.dtsi
+++ b/arch/arm/boot/dts/tegra114.dtsi
@@ -99,8 +99,10 @@
 	};
 
 	pmc {
-		compatible = "nvidia,tegra114-pmc", "nvidia,tegra30-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 44416209004..4e3afdef28a 100644
--- a/arch/arm/boot/dts/tegra20-colibri-512.dtsi
+++ b/arch/arm/boot/dts/tegra20-colibri-512.dtsi
@@ -444,7 +444,20 @@
 	};
 
 	sdhci@c8000600 {
-		cd-gpios = <&gpio 23 0>; /* gpio PC7 */
+		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 {
diff --git a/arch/arm/boot/dts/tegra20-harmony.dts b/arch/arm/boot/dts/tegra20-harmony.dts
index 61d027f0361..ae9d5a20834 100644
--- a/arch/arm/boot/dts/tegra20-harmony.dts
+++ b/arch/arm/boot/dts/tegra20-harmony.dts
@@ -437,7 +437,7 @@
 
 	sdhci@c8000200 {
 		status = "okay";
-		cd-gpios = <&gpio 69 0>; /* gpio PI5 */
+		cd-gpios = <&gpio 69 1>; /* gpio PI5 */
 		wp-gpios = <&gpio 57 0>; /* gpio PH1 */
 		power-gpios = <&gpio 155 0>; /* gpio PT3 */
 		bus-width = <4>;
@@ -445,12 +445,25 @@
 
 	sdhci@c8000600 {
 		status = "okay";
-		cd-gpios = <&gpio 58 0>; /* gpio PH2 */
+		cd-gpios = <&gpio 58 1>; /* gpio PH2 */
 		wp-gpios = <&gpio 59 0>; /* gpio PH3 */
 		power-gpios = <&gpio 70 0>; /* gpio PI6 */
 		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 54d6fce00a5..fd60940e406 100644
--- a/arch/arm/boot/dts/tegra20-paz00.dts
+++ b/arch/arm/boot/dts/tegra20-paz00.dts
@@ -436,7 +436,7 @@
 
 	sdhci@c8000000 {
 		status = "okay";
-		cd-gpios = <&gpio 173 0>; /* gpio PV5 */
+		cd-gpios = <&gpio 173 1>; /* gpio PV5 */
 		wp-gpios = <&gpio 57 0>;  /* gpio PH1 */
 		power-gpios = <&gpio 169 0>; /* gpio PV1 */
 		bus-width = <4>;
@@ -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 37b3a57ec0f..4ee700a33ca 100644
--- a/arch/arm/boot/dts/tegra20-seaboard.dts
+++ b/arch/arm/boot/dts/tegra20-seaboard.dts
@@ -584,7 +584,7 @@
 
 	sdhci@c8000400 {
 		status = "okay";
-		cd-gpios = <&gpio 69 0>; /* gpio PI5 */
+		cd-gpios = <&gpio 69 1>; /* gpio PI5 */
 		wp-gpios = <&gpio 57 0>; /* gpio PH1 */
 		power-gpios = <&gpio 70 0>; /* gpio PI6 */
 		bus-width = <4>;
@@ -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 4766abae7a7..c1902572591 100644
--- a/arch/arm/boot/dts/tegra20-tamonten.dtsi
+++ b/arch/arm/boot/dts/tegra20-tamonten.dtsi
@@ -465,12 +465,25 @@
 	};
 
 	sdhci@c8000600 {
-		cd-gpios = <&gpio 58 0>; /* gpio PH2 */
+		cd-gpios = <&gpio 58 1>; /* gpio PH2 */
 		wp-gpios = <&gpio 59 0>; /* gpio PH3 */
 		bus-width = <4>;
 		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 5d79e4fc49a..a9f3f06580f 100644
--- a/arch/arm/boot/dts/tegra20-trimslice.dts
+++ b/arch/arm/boot/dts/tegra20-trimslice.dts
@@ -325,11 +325,24 @@
 
 	sdhci@c8000600 {
 		status = "okay";
-		cd-gpios = <&gpio 121 0>; /* gpio PP1 */
+		cd-gpios = <&gpio 121 1>; /* gpio PP1 */
 		wp-gpios = <&gpio 122 0>; /* gpio PP2 */
 		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 425c89000c2..f544806e961 100644
--- a/arch/arm/boot/dts/tegra20-ventana.dts
+++ b/arch/arm/boot/dts/tegra20-ventana.dts
@@ -520,7 +520,7 @@
 
 	sdhci@c8000400 {
 		status = "okay";
-		cd-gpios = <&gpio 69 0>; /* gpio PI5 */
+		cd-gpios = <&gpio 69 1>; /* gpio PI5 */
 		wp-gpios = <&gpio 57 0>; /* gpio PH1 */
 		power-gpios = <&gpio 70 0>; /* gpio PI6 */
 		bus-width = <4>;
@@ -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 ea57c0f6dcc..258cf945f51 100644
--- a/arch/arm/boot/dts/tegra20-whistler.dts
+++ b/arch/arm/boot/dts/tegra20-whistler.dts
@@ -510,6 +510,7 @@
 
 	sdhci@c8000400 {
 		status = "okay";
+		cd-gpios = <&gpio 69 1>; /* gpio PI5 */
 		wp-gpios = <&gpio 173 0>; /* gpio PV5 */
 		bus-width = <8>;
 	};
@@ -519,6 +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 3d3f64d2111..fc7febc2b38 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -145,6 +145,7 @@
 			      0 1 0x04
 			      0 41 0x04
 			      0 42 0x04>;
+		clocks = <&tegra_car 5>;
 	};
 
 	tegra_car: clock {
@@ -304,6 +305,7 @@
 		compatible = "nvidia,tegra20-rtc";
 		reg = <0x7000e000 0x100>;
 		interrupts = <0 2 0x04>;
+		clocks = <&tegra_car 4>;
 	};
 
 	i2c@7000c000 {
@@ -416,6 +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 8ff2ff20e4a..6248b2445b3 100644
--- a/arch/arm/boot/dts/tegra30-beaver.dts
+++ b/arch/arm/boot/dts/tegra30-beaver.dts
@@ -257,7 +257,7 @@
 
 	sdhci@78000000 {
 		status = "okay";
-		cd-gpios = <&gpio 69 0>; /* gpio PI5 */
+		cd-gpios = <&gpio 69 1>; /* gpio PI5 */
 		wp-gpios = <&gpio 155 0>; /* gpio PT3 */
 		power-gpios = <&gpio 31 0>; /* gpio PD7 */
 		bus-width = <4>;
@@ -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 17499272a4e..65bf2b63174 100644
--- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
+++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
@@ -311,7 +311,7 @@
 
 	sdhci@78000000 {
 		status = "okay";
-		cd-gpios = <&gpio 69 0>; /* gpio PI5 */
+		cd-gpios = <&gpio 69 1>; /* gpio PI5 */
 		wp-gpios = <&gpio 155 0>; /* gpio PT3 */
 		power-gpios = <&gpio 31 0>; /* gpio PD7 */
 		bus-width = <4>;
@@ -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 dbf46c27256..9fe7a92b4c8 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -148,6 +148,7 @@
 			      0 42 0x04
 			      0 121 0x04
 			      0 122 0x04>;
+		clocks = <&tegra_car 5>;
 	};
 
 	tegra_car: clock {
@@ -291,6 +292,7 @@
 		compatible = "nvidia,tegra30-rtc", "nvidia,tegra20-rtc";
 		reg = <0x7000e000 0x100>;
 		interrupts = <0 2 0x04>;
+		clocks = <&tegra_car 4>;
 	};
 
 	i2c@7000c000 {
@@ -423,8 +425,10 @@
 	};
 
 	pmc {
-		compatible = "nvidia,tegra20-pmc", "nvidia,tegra30-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 f6b46ae2b7f..e40326d0e29 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -10,6 +10,7 @@ obj-y					+= pm.o
 obj-y					+= reset.o
 obj-y					+= reset-handler.o
 obj-y					+= sleep.o
+obj-y					+= tegra.o
 obj-$(CONFIG_CPU_IDLE)			+= cpuidle.o
 obj-$(CONFIG_ARCH_TEGRA_2x_SOC)		+= tegra20_speedo.o
 obj-$(CONFIG_ARCH_TEGRA_2x_SOC)		+= tegra2_emc.o
@@ -27,9 +28,7 @@ obj-$(CONFIG_HOTPLUG_CPU)               += hotplug.o
 obj-$(CONFIG_CPU_FREQ)                  += cpu-tegra.o
 obj-$(CONFIG_TEGRA_PCI)			+= pcie.o
 
-obj-$(CONFIG_ARCH_TEGRA_2x_SOC)		+= board-dt-tegra20.o
-obj-$(CONFIG_ARCH_TEGRA_3x_SOC)		+= board-dt-tegra30.o
-obj-$(CONFIG_ARCH_TEGRA_114_SOC)	+= board-dt-tegra114.o
+obj-$(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/board-dt-tegra114.c b/arch/arm/mach-tegra/board-dt-tegra114.c
deleted file mode 100644
index 085d63637b6..00000000000
--- a/arch/arm/mach-tegra/board-dt-tegra114.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * NVIDIA Tegra114 device tree board support
- *
- * Copyright (C) 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
- * may be copied, distributed, and modified under those terms.
- *
- * 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/of.h>
-#include <linux/of_platform.h>
-#include <linux/clocksource.h>
-
-#include <asm/mach/arch.h>
-
-#include "board.h"
-#include "common.h"
-
-static void __init tegra114_dt_init(void)
-{
-	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-}
-
-static const char * const tegra114_dt_board_compat[] = {
-	"nvidia,tegra114",
-	NULL,
-};
-
-DT_MACHINE_START(TEGRA114_DT, "NVIDIA Tegra114 (Flattened Device Tree)")
-	.smp		= smp_ops(tegra_smp_ops),
-	.map_io		= tegra_map_common_io,
-	.init_early	= tegra114_init_early,
-	.init_irq	= tegra_dt_init_irq,
-	.init_time	= clocksource_of_init,
-	.init_machine	= tegra114_dt_init,
-	.init_late	= tegra_init_late,
-	.restart	= tegra_assert_system_reset,
-	.dt_compat	= tegra114_dt_board_compat,
-MACHINE_END
diff --git a/arch/arm/mach-tegra/board-dt-tegra30.c b/arch/arm/mach-tegra/board-dt-tegra30.c
deleted file mode 100644
index bf68567e549..00000000000
--- a/arch/arm/mach-tegra/board-dt-tegra30.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * arch/arm/mach-tegra/board-dt-tegra30.c
- *
- * NVIDIA Tegra30 device tree board support
- *
- * Copyright (C) 2011 NVIDIA Corporation
- *
- * Derived from:
- *
- * arch/arm/mach-tegra/board-dt-tegra20.c
- *
- * Copyright (C) 2010 Secret Lab Technologies, Ltd.
- * Copyright (C) 2010 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * 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/clocksource.h>
-#include <linux/kernel.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_fdt.h>
-#include <linux/of_irq.h>
-#include <linux/of_platform.h>
-
-#include <asm/mach/arch.h>
-
-#include "board.h"
-#include "common.h"
-#include "iomap.h"
-
-static void __init tegra30_dt_init(void)
-{
-	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-}
-
-static const char *tegra30_dt_board_compat[] = {
-	"nvidia,tegra30",
-	NULL
-};
-
-DT_MACHINE_START(TEGRA30_DT, "NVIDIA Tegra30 (Flattened Device Tree)")
-	.smp		= smp_ops(tegra_smp_ops),
-	.map_io		= tegra_map_common_io,
-	.init_early	= tegra30_init_early,
-	.init_irq	= tegra_dt_init_irq,
-	.init_time	= clocksource_of_init,
-	.init_machine	= tegra30_dt_init,
-	.init_late	= tegra_init_late,
-	.restart	= tegra_assert_system_reset,
-	.dt_compat	= tegra30_dt_board_compat,
-MACHINE_END
diff --git a/arch/arm/mach-tegra/board-harmony-pcie.c b/arch/arm/mach-tegra/board-harmony-pcie.c
index 6d29e6a3954..035b240b9e1 100644
--- a/arch/arm/mach-tegra/board-harmony-pcie.c
+++ b/arch/arm/mach-tegra/board-harmony-pcie.c
@@ -62,7 +62,11 @@ int __init harmony_pcie_init(void)
 		goto err_reg;
 	}
 
-	regulator_enable(regulator);
+	err = regulator_enable(regulator);
+	if (err) {
+		pr_err("%s: regulator_enable failed: %d\n", __func__, err);
+		goto err_en;
+	}
 
 	err = tegra_pcie_init(true, true);
 	if (err) {
@@ -74,6 +78,7 @@ int __init harmony_pcie_init(void)
 
 err_pcie:
 	regulator_disable(regulator);
+err_en:
 	regulator_put(regulator);
 err_reg:
 	gpio_free(en_vdd_1v05);
diff --git a/arch/arm/mach-tegra/board.h b/arch/arm/mach-tegra/board.h
index 86851c81a35..60431de585c 100644
--- a/arch/arm/mach-tegra/board.h
+++ b/