Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC specific changes from Arnd Bergmann:
 "These changes are all to SoC-specific code, a total of 33 branches on
  17 platforms were pulled into this.  Like last time, Renesas sh-mobile
  is now the platform with the most changes, followed by OMAP and
  EXYNOS.

  Two new platforms, TI Keystone and Rockchips RK3xxx are added in this
  branch, both containing almost no platform specific code at all, since
  they are using generic subsystem interfaces for clocks, pinctrl,
  interrupts etc.  The device drivers are getting merged through the
  respective subsystem maintainer trees.

  One more SoC (u300) is now multiplatform capable and several others
  (shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
  towards that goal with this series but need more work.

  Also noteworthy is the work on PCI here, which is traditionally part
  of the SoC specific code.  With the changes done by Thomas Petazzoni,
  we can now more easily have PCI host controller drivers as loadable
  modules and keep them separate from the platform code in
  drivers/pci/host.  This has already led to the discovery that three
  platforms (exynos, spear and imx) are actually using an identical PCIe
  host controller and will be able to share a driver once support for
  spear and imx is added."

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (480 commits)
  ARM: integrator: let pciv3 use mem/premem from device tree
  ARM: integrator: set local side PCI addresses right
  ARM: dts: Add pcie controller node for exynos5440-ssdk5440
  ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC
  ARM: EXYNOS: Enable PCIe support for Exynos5440
  pci: Add PCIe driver for Samsung Exynos
  ARM: OMAP5: voltagedomain data: remove temporary OMAP4 voltage data
  ARM: keystone: Move CPU bringup code to dedicated asm file
  ARM: multiplatform: always pick one CPU type
  ARM: imx: select syscon for IMX6SL
  ARM: keystone: select ARM_ERRATA_798181 only for SMP
  ARM: imx: Synertronixx scb9328 needs to select SOC_IMX1
  ARM: OMAP2+: AM43x: resolve SMP related build error
  dmaengine: edma: enable build for AM33XX
  ARM: edma: Add EDMA crossbar event mux support
  ARM: edma: Add DT and runtime PM support to the private EDMA API
  dmaengine: edma: Add TI EDMA device tree binding
  arm: add basic support for Rockchip RK3066a boards
  arm: add debug uarts for rockchip rk29xx and rk3xxx series
  arm: Add basic clocks for Rockchip rk3066a SoCs
  ...

14 files changed, 206 insertions, 201 deletions

diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 05ee9eebad6b..a5fef710af32 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -136,7 +136,11 @@
  * assumes FIQs are enabled, and that the processor is in SVC mode.
  */
 	.macro	save_and_disable_irqs, oldcpsr
+#ifdef CONFIG_CPU_V7M
+	mrs	\oldcpsr, primask
+#else
 	mrs	\oldcpsr, cpsr
+#endif
 	disable_irq
 	.endm
 
@@ -150,7 +154,11 @@
  * guarantee that this will preserve the flags.
  */
 	.macro	restore_irqs_notrace, oldcpsr
+#ifdef CONFIG_CPU_V7M
+	msr	primask, \oldcpsr
+#else
 	msr	cpsr_c, \oldcpsr
+#endif
 	.endm
 
 	.macro restore_irqs, oldcpsr
@@ -229,7 +237,14 @@
 #endif
 	.endm
 
-#ifdef CONFIG_THUMB2_KERNEL
+#if defined(CONFIG_CPU_V7M)
+	/*
+	 * setmode is used to assert to be in svc mode during boot. For v7-M
+	 * this is done in __v7m_setup, so setmode can be empty here.
+	 */
+	.macro	setmode, mode, reg
+	.endm
+#elif defined(CONFIG_THUMB2_KERNEL)
 	.macro	setmode, mode, reg
 	mov	\reg, #\mode
 	msr	cpsr_c, \reg
diff --git a/arch/arm/include/asm/cp15.h b/arch/arm/include/asm/cp15.h
index 1f3262e99d81..cedd3721318b 100644
--- a/arch/arm/include/asm/cp15.h
+++ b/arch/arm/include/asm/cp15.h
@@ -61,6 +61,20 @@ static inline void set_cr(unsigned int val)
 	isb();
 }
 
+static inline unsigned int get_auxcr(void)
+{
+	unsigned int val;
+	asm("mrc p15, 0, %0, c1, c0, 1	@ get AUXCR" : "=r" (val));
+	return val;
+}
+
+static inline void set_auxcr(unsigned int val)
+{
+	asm volatile("mcr p15, 0, %0, c1, c0, 1	@ set AUXCR"
+	  : : "r" (val));
+	isb();
+}
+
 #ifndef CONFIG_SMP
 extern void adjust_cr(unsigned long mask, unsigned long set);
 #endif
diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h
index dba62cb1ad08..d7deb62554c9 100644
--- a/arch/arm/include/asm/cputype.h
+++ b/arch/arm/include/asm/cputype.h
@@ -10,6 +10,22 @@
 #define CPUID_TLBTYPE	3
 #define CPUID_MPIDR	5
 
+#ifdef CONFIG_CPU_V7M
+#define CPUID_EXT_PFR0	0x40
+#define CPUID_EXT_PFR1	0x44
+#define CPUID_EXT_DFR0	0x48
+#define CPUID_EXT_AFR0	0x4c
+#define CPUID_EXT_MMFR0	0x50
+#define CPUID_EXT_MMFR1	0x54
+#define CPUID_EXT_MMFR2	0x58
+#define CPUID_EXT_MMFR3	0x5c
+#define CPUID_EXT_ISAR0	0x60
+#define CPUID_EXT_ISAR1	0x64
+#define CPUID_EXT_ISAR2	0x68
+#define CPUID_EXT_ISAR3	0x6c
+#define CPUID_EXT_ISAR4	0x70
+#define CPUID_EXT_ISAR5	0x74
+#else
 #define CPUID_EXT_PFR0	"c1, 0"
 #define CPUID_EXT_PFR1	"c1, 1"
 #define CPUID_EXT_DFR0	"c1, 2"
@@ -24,6 +40,7 @@
 #define CPUID_EXT_ISAR3	"c2, 3"
 #define CPUID_EXT_ISAR4	"c2, 4"
 #define CPUID_EXT_ISAR5	"c2, 5"
+#endif
 
 #define MPIDR_SMP_BITMASK (0x3 << 30)
 #define MPIDR_SMP_VALUE (0x2 << 30)
@@ -81,7 +98,23 @@ extern unsigned int processor_id;
 		__val;							\
 	})
 
-#else /* ifdef CONFIG_CPU_CP15 */
+#elif defined(CONFIG_CPU_V7M)
+
+#include <asm/io.h>
+#include <asm/v7m.h>
+
+#define read_cpuid(reg)							\
+	({								\
+		WARN_ON_ONCE(1);					\
+		0;							\
+	})
+
+static inline unsigned int __attribute_const__ read_cpuid_ext(unsigned offset)
+{
+	return readl(BASEADDR_V7M_SCB + offset);
+}
+
+#else /* ifdef CONFIG_CPU_CP15 / elif defined (CONFIG_CPU_V7M) */
 
 /*
  * read_cpuid and read_cpuid_ext should only ever be called on machines that
@@ -108,7 +141,14 @@ static inline unsigned int __attribute_const__ read_cpuid_id(void)
 	return read_cpuid(CPUID_ID);
 }
 
-#else /* ifdef CONFIG_CPU_CP15 */
+#elif defined(CONFIG_CPU_V7M)
+
+static inline unsigned int __attribute_const__ read_cpuid_id(void)
+{
+	return readl(BASEADDR_V7M_SCB + V7M_SCB_CPUID);
+}
+
+#else /* ifdef CONFIG_CPU_CP15 / elif defined(CONFIG_CPU_V7M) */
 
 static inline unsigned int __attribute_const__ read_cpuid_id(void)
 {
diff --git a/arch/arm/include/asm/glue-cache.h b/arch/arm/include/asm/glue-cache.h
index ea289e1435e7..c81adc08b3fb 100644
--- a/arch/arm/include/asm/glue-cache.h
+++ b/arch/arm/include/asm/glue-cache.h
@@ -117,10 +117,37 @@
 # endif
 #endif
 
+#if defined(CONFIG_CPU_V7M)
+# ifdef _CACHE
+#  define MULTI_CACHE 1
+# else
+#  define _CACHE nop
+# endif
+#endif
+
 #if !defined(_CACHE) && !defined(MULTI_CACHE)
 #error Unknown cache maintenance model
 #endif
 
+#ifndef __ASSEMBLER__
+extern inline void nop_flush_icache_all(void) { }
+extern inline void nop_flush_kern_cache_all(void) { }
+extern inline void nop_flush_kern_cache_louis(void) { }
+extern inline void nop_flush_user_cache_all(void) { }
+extern inline void nop_flush_user_cache_range(unsigned long a,
+		unsigned long b, unsigned int c) { }
+
+extern inline void nop_coherent_kern_range(unsigned long a, unsigned long b) { }
+extern inline int nop_coherent_user_range(unsigned long a,
+		unsigned long b) { return 0; }
+extern inline void nop_flush_kern_dcache_area(void *a, size_t s) { }
+
+extern inline void nop_dma_flush_range(const void *a, const void *b) { }
+
+extern inline void nop_dma_map_area(const void *s, size_t l, int f) { }
+extern inline void nop_dma_unmap_area(const void *s, size_t l, int f) { }
+#endif
+
 #ifndef MULTI_CACHE
 #define __cpuc_flush_icache_all		__glue(_CACHE,_flush_icache_all)
 #define __cpuc_flush_kern_all		__glue(_CACHE,_flush_kern_cache_all)
diff --git a/arch/arm/include/asm/glue-df.h b/arch/arm/include/asm/glue-df.h
index b6e9f2c108b5..6b70f1b46a6e 100644
--- a/arch/arm/include/asm/glue-df.h
+++ b/arch/arm/include/asm/glue-df.h
@@ -95,6 +95,14 @@
 # endif
 #endif
 
+#ifdef CONFIG_CPU_ABRT_NOMMU
+# ifdef CPU_DABORT_HANDLER
+#  define MULTI_DABORT 1
+# else
+#  define CPU_DABORT_HANDLER nommu_early_abort
+# endif
+#endif
+
 #ifndef CPU_DABORT_HANDLER
 #error Unknown data abort handler type
 #endif
diff --git a/arch/arm/include/asm/glue-proc.h b/arch/arm/include/asm/glue-proc.h
index 8017e94acc5e..e6168c0c18e9 100644
--- a/arch/arm/include/asm/glue-proc.h
+++ b/arch/arm/include/asm/glue-proc.h
@@ -239,6 +239,15 @@
 # endif
 #endif
 
+#ifdef CONFIG_CPU_V7M
+# ifdef CPU_NAME
+#  undef  MULTI_CPU
+#  define MULTI_CPU
+# else
+#  define CPU_NAME cpu_v7m
+# endif
+#endif
+
 #ifndef MULTI_CPU
 #define cpu_proc_init			__glue(CPU_NAME,_proc_init)
 #define cpu_proc_fin			__glue(CPU_NAME,_proc_fin)
diff --git a/arch/arm/include/asm/hardware/pci_v3.h b/arch/arm/include/asm/hardware/pci_v3.h
deleted file mode 100644
index 2811c7e2cfdf..000000000000
--- a/arch/arm/include/asm/hardware/pci_v3.h
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- *  arch/arm/include/asm/hardware/pci_v3.h
- *
- *  Internal header file PCI V3 chip
- *
- *  Copyright (C) ARM Limited
- *  Copyright (C) 2000-2001 Deep Blue Solutions Ltd.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#ifndef ASM_ARM_HARDWARE_PCI_V3_H
-#define ASM_ARM_HARDWARE_PCI_V3_H
-
-/* -------------------------------------------------------------------------------
- *  V3 Local Bus to PCI Bridge definitions
- * -------------------------------------------------------------------------------
- *  Registers (these are taken from page 129 of the EPC User's Manual Rev 1.04
- *  All V3 register names are prefaced by V3_ to avoid clashing with any other
- *  PCI definitions.  Their names match the user's manual.
- * 
- *  I'm assuming that I20 is disabled.
- * 
- */
-#define V3_PCI_VENDOR                   0x00000000
-#define V3_PCI_DEVICE                   0x00000002
-#define V3_PCI_CMD                      0x00000004
-#define V3_PCI_STAT                     0x00000006
-#define V3_PCI_CC_REV                   0x00000008
-#define V3_PCI_HDR_CFG                  0x0000000C
-#define V3_PCI_IO_BASE                  0x00000010
-#define V3_PCI_BASE0                    0x00000014
-#define V3_PCI_BASE1                    0x00000018
-#define V3_PCI_SUB_VENDOR               0x0000002C
-#define V3_PCI_SUB_ID                   0x0000002E
-#define V3_PCI_ROM                      0x00000030
-#define V3_PCI_BPARAM                   0x0000003C
-#define V3_PCI_MAP0                     0x00000040
-#define V3_PCI_MAP1                     0x00000044
-#define V3_PCI_INT_STAT                 0x00000048
-#define V3_PCI_INT_CFG                  0x0000004C 
-#define V3_LB_BASE0                     0x00000054
-#define V3_LB_BASE1                     0x00000058
-#define V3_LB_MAP0                      0x0000005E
-#define V3_LB_MAP1                      0x00000062
-#define V3_LB_BASE2                     0x00000064
-#define V3_LB_MAP2                      0x00000066
-#define V3_LB_SIZE                      0x00000068
-#define V3_LB_IO_BASE                   0x0000006E
-#define V3_FIFO_CFG                     0x00000070
-#define V3_FIFO_PRIORITY                0x00000072
-#define V3_FIFO_STAT                    0x00000074
-#define V3_LB_ISTAT                     0x00000076
-#define V3_LB_IMASK                     0x00000077
-#define V3_SYSTEM                       0x00000078
-#define V3_LB_CFG                       0x0000007A
-#define V3_PCI_CFG                      0x0000007C
-#define V3_DMA_PCI_ADR0                 0x00000080
-#define V3_DMA_PCI_ADR1                 0x00000090
-#define V3_DMA_LOCAL_ADR0               0x00000084
-#define V3_DMA_LOCAL_ADR1               0x00000094
-#define V3_DMA_LENGTH0                  0x00000088
-#define V3_DMA_LENGTH1                  0x00000098
-#define V3_DMA_CSR0                     0x0000008B
-#define V3_DMA_CSR1                     0x0000009B
-#define V3_DMA_CTLB_ADR0                0x0000008C
-#define V3_DMA_CTLB_ADR1                0x0000009C
-#define V3_DMA_DELAY                    0x000000E0
-#define V3_MAIL_DATA                    0x000000C0
-#define V3_PCI_MAIL_IEWR                0x000000D0
-#define V3_PCI_MAIL_IERD                0x000000D2
-#define V3_LB_MAIL_IEWR                 0x000000D4
-#define V3_LB_MAIL_IERD                 0x000000D6
-#define V3_MAIL_WR_STAT                 0x000000D8
-#define V3_MAIL_RD_STAT                 0x000000DA
-#define V3_QBA_MAP                      0x000000DC
-
-/*  PCI COMMAND REGISTER bits
- */
-#define V3_COMMAND_M_FBB_EN             (1 << 9)
-#define V3_COMMAND_M_SERR_EN            (1 << 8)
-#define V3_COMMAND_M_PAR_EN             (1 << 6)
-#define V3_COMMAND_M_MASTER_EN          (1 << 2)
-#define V3_COMMAND_M_MEM_EN             (1 << 1)
-#define V3_COMMAND_M_IO_EN              (1 << 0)
-
-/*  SYSTEM REGISTER bits
- */
-#define V3_SYSTEM_M_RST_OUT             (1 << 15)
-#define V3_SYSTEM_M_LOCK                (1 << 14)
-
-/*  PCI_CFG bits
- */
-#define V3_PCI_CFG_M_I2O_EN		(1 << 15)
-#define V3_PCI_CFG_M_IO_REG_DIS		(1 << 14)
-#define V3_PCI_CFG_M_IO_DIS		(1 << 13)
-#define V3_PCI_CFG_M_EN3V		(1 << 12)
-#define V3_PCI_CFG_M_RETRY_EN           (1 << 10)
-#define V3_PCI_CFG_M_AD_LOW1            (1 << 9)
-#define V3_PCI_CFG_M_AD_LOW0            (1 << 8)
-
-/*  PCI_BASE register bits (PCI -> Local Bus)
- */
-#define V3_PCI_BASE_M_ADR_BASE          0xFFF00000
-#define V3_PCI_BASE_M_ADR_BASEL         0x000FFF00
-#define V3_PCI_BASE_M_PREFETCH          (1 << 3)
-#define V3_PCI_BASE_M_TYPE              (3 << 1)
-#define V3_PCI_BASE_M_IO                (1 << 0)
-
-/*  PCI MAP register bits (PCI -> Local bus)
- */
-#define V3_PCI_MAP_M_MAP_ADR            0xFFF00000
-#define V3_PCI_MAP_M_RD_POST_INH        (1 << 15)
-#define V3_PCI_MAP_M_ROM_SIZE           (3 << 10)
-#define V3_PCI_MAP_M_SWAP               (3 << 8)
-#define V3_PCI_MAP_M_ADR_SIZE           0x000000F0
-#define V3_PCI_MAP_M_REG_EN             (1 << 1)
-#define V3_PCI_MAP_M_ENABLE             (1 << 0)
-
-/*
- *  LB_BASE0,1 register bits (Local bus -> PCI)
- */
-#define V3_LB_BASE_ADR_BASE		0xfff00000
-#define V3_LB_BASE_SWAP			(3 << 8)
-#define V3_LB_BASE_ADR_SIZE		(15 << 4)
-#define V3_LB_BASE_PREFETCH		(1 << 3)
-#define V3_LB_BASE_ENABLE		(1 << 0)
-
-#define V3_LB_BASE_ADR_SIZE_1MB		(0 << 4)
-#define V3_LB_BASE_ADR_SIZE_2MB		(1 << 4)
-#define V3_LB_BASE_ADR_SIZE_4MB		(2 << 4)
-#define V3_LB_BASE_ADR_SIZE_8MB		(3 << 4)
-#define V3_LB_BASE_ADR_SIZE_16MB	(4 << 4)
-#define V3_LB_BASE_ADR_SIZE_32MB	(5 << 4)
-#define V3_LB_BASE_ADR_SIZE_64MB	(6 << 4)
-#define V3_LB_BASE_ADR_SIZE_128MB	(7 << 4)
-#define V3_LB_BASE_ADR_SIZE_256MB	(8 << 4)
-#define V3_LB_BASE_ADR_SIZE_512MB	(9 << 4)
-#define V3_LB_BASE_ADR_SIZE_1GB		(10 << 4)
-#define V3_LB_BASE_ADR_SIZE_2GB		(11 << 4)
-
-#define v3_addr_to_lb_base(a)	((a) & V3_LB_BASE_ADR_BASE)
-
-/*
- *  LB_MAP0,1 register bits (Local bus -> PCI)
- */
-#define V3_LB_MAP_MAP_ADR		0xfff0
-#define V3_LB_MAP_TYPE			(7 << 1)
-#define V3_LB_MAP_AD_LOW_EN		(1 << 0)
-
-#define V3_LB_MAP_TYPE_IACK		(0 << 1)
-#define V3_LB_MAP_TYPE_IO		(1 << 1)
-#define V3_LB_MAP_TYPE_MEM		(3 << 1)
-#define V3_LB_MAP_TYPE_CONFIG		(5 << 1)
-#define V3_LB_MAP_TYPE_MEM_MULTIPLE	(6 << 1)
-
-#define v3_addr_to_lb_map(a)	(((a) >> 16) & V3_LB_MAP_MAP_ADR)
-
-/*
- *  LB_BASE2 register bits (Local bus -> PCI IO)
- */
-#define V3_LB_BASE2_ADR_BASE		0xff00
-#define V3_LB_BASE2_SWAP		(3 << 6)
-#define V3_LB_BASE2_ENABLE		(1 << 0)
-
-#define v3_addr_to_lb_base2(a)	(((a) >> 16) & V3_LB_BASE2_ADR_BASE)
-
-/*
- *  LB_MAP2 register bits (Local bus -> PCI IO)
- */
-#define V3_LB_MAP2_MAP_ADR		0xff00
-
-#define v3_addr_to_lb_map2(a)	(((a) >> 16) & V3_LB_MAP2_MAP_ADR)
-
-#endif
diff --git a/arch/arm/include/asm/irqflags.h b/arch/arm/include/asm/irqflags.h
index 1e6cca55c750..3b763d6652a0 100644
--- a/arch/arm/include/asm/irqflags.h
+++ b/arch/arm/include/asm/irqflags.h
@@ -8,6 +8,16 @@
 /*
  * CPU interrupt mask handling.
  */
+#ifdef CONFIG_CPU_V7M
+#define IRQMASK_REG_NAME_R "primask"
+#define IRQMASK_REG_NAME_W "primask"
+#define IRQMASK_I_BIT	1
+#else
+#define IRQMASK_REG_NAME_R "cpsr"
+#define IRQMASK_REG_NAME_W "cpsr_c"
+#define IRQMASK_I_BIT	PSR_I_BIT
+#endif
+
 #if __LINUX_ARM_ARCH__ >= 6
 
 static inline unsigned long arch_local_irq_save(void)
@@ -15,7 +25,7 @@ static inline unsigned long arch_local_irq_save(void)
 	unsigned long flags;
 
 	asm volatile(
-		"	mrs	%0, cpsr	@ arch_local_irq_save\n"
+		"	mrs	%0, " IRQMASK_REG_NAME_R "	@ arch_local_irq_save\n"
 		"	cpsid	i"
 		: "=r" (flags) : : "memory", "cc");
 	return flags;
@@ -129,7 +139,7 @@ static inline unsigned long arch_local_save_flags(void)
 {
 	unsigned long flags;
 	asm volatile(
-		"	mrs	%0, cpsr	@ local_save_flags"
+		"	mrs	%0, " IRQMASK_REG_NAME_R "	@ local_save_flags"
 		: "=r" (flags) : : "memory", "cc");
 	return flags;
 }
@@ -140,7 +150,7 @@ static inline unsigned long arch_local_save_flags(void)
 static inline void arch_local_irq_restore(unsigned long flags)
 {
 	asm volatile(
-		"	msr	cpsr_c, %0	@ local_irq_restore"
+		"	msr	" IRQMASK_REG_NAME_W ", %0	@ local_irq_restore"
 		:
 		: "r" (flags)
 		: "memory", "cc");
@@ -148,8 +158,8 @@ static inline void arch_local_irq_restore(unsigned long flags)
 
 static inline int arch_irqs_disabled_flags(unsigned long flags)
 {
-	return flags & PSR_I_BIT;
+	return flags & IRQMASK_I_BIT;
 }
 
-#endif
-#endif
+#endif /* ifdef __KERNEL__ */
+#endif /* ifndef __ASM_ARM_IRQFLAGS_H */
diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h
index 308ad7d6f98b..75bf07910b81 100644
--- a/arch/arm/include/asm/mach/arch.h
+++ b/arch/arm/include/asm/mach/arch.h
@@ -8,6 +8,8 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/types.h>
+
 #ifndef __ASSEMBLY__
 
 struct tag;
@@ -16,8 +18,10 @@ struct pt_regs;
 struct smp_operations;
 #ifdef CONFIG_SMP
 #define smp_ops(ops) (&(ops))
+#define smp_init_ops(ops) (&(ops))
 #else
 #define smp_ops(ops) (struct smp_operations *)NULL
+#define smp_init_ops(ops) (bool (*)(void))NULL
 #endif
 
 struct machine_desc {
@@ -41,6 +45,7 @@ struct machine_desc {
 	unsigned char		reserve_lp2 :1;	/* never has lp2	*/
 	char			restart_mode;	/* default restart mode	*/
 	struct smp_operations	*smp;		/* SMP operations	*/
+	bool			(*smp_init)(void);
 	void			(*fixup)(struct tag *, char **,
 					 struct meminfo *);
 	void			(*reserve)(void);/* reserve mem blocks	*/
diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h
index 7d2c3c843801..a1c90d7feb0e 100644
--- a/arch/arm/include/asm/mach/pci.h
+++ b/arch/arm/include/asm/mach/pci.h
@@ -16,6 +16,7 @@
 struct pci_sys_data;
 struct pci_ops;
 struct pci_bus;
+struct device;
 
 struct hw_pci {
 #ifdef CONFIG_PCI_DOMAINS
@@ -68,7 +69,16 @@ struct pci_sys_data {
 /*
  * Call this with your hw_pci struct to initialise the PCI system.
  */
-void pci_common_init(struct hw_pci *);
+void pci_common_init_dev(struct device *, struct hw_pci *);
+
+/*
+ * Compatibility wrapper for older platforms that do not care about
+ * passing the parent device.
+ */
+static inline void pci_common_init(struct hw_pci *hw)
+{
+	pci_common_init_dev(NULL, hw);
+}
 
 /*
  * Setup early fixed I/O mapping.
@@ -96,9 +106,4 @@ extern struct pci_ops via82c505_ops;
 extern int via82c505_setup(int nr, struct pci_sys_data *);
 extern void via82c505_init(void *sysdata);
 
-extern struct pci_ops pci_v3_ops;
-extern int pci_v3_setup(int nr, struct pci_sys_data *);
-extern void pci_v3_preinit(void);
-extern void pci_v3_postinit(void);
-
 #endif /* __ASM_MACH_PCI_H */
diff --git a/arch/arm/include/asm/psci.h b/arch/arm/include/asm/psci.h
index ce0dbe7c1625..c4ae171850f8 100644
--- a/arch/arm/include/asm/psci.h
+++ b/arch/arm/include/asm/psci.h
@@ -32,5 +32,14 @@ struct psci_operations {
 };
 
 extern struct psci_operations psci_ops;
+extern struct smp_operations psci_smp_ops;
+
+#ifdef CONFIG_ARM_PSCI
+void psci_init(void);
+bool psci_smp_available(void);
+#else
+static inline void psci_init(void) { }
+static inline bool psci_smp_available(void) { return false; }
+#endif
 
 #endif /* __ASM_ARM_PSCI_H */
diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h
index 3d52ee1bfb31..04c99f36ff7f 100644
--- a/arch/arm/include/asm/ptrace.h
+++ b/arch/arm/include/asm/ptrace.h
@@ -45,6 +45,7 @@ struct pt_regs {
  */
 static inline int valid_user_regs(struct pt_regs *regs)
 {
+#ifndef CONFIG_CPU_V7M
 	unsigned long mode = regs->ARM_cpsr & MODE_MASK;
 
 	/*
@@ -67,6 +68,9 @@ static inline int valid_user_regs(struct pt_regs *regs)
 		regs->ARM_cpsr |= USR_MODE;
 
 	return 0;
+#else /* ifndef CONFIG_CPU_V7M */
+	return 1;
+#endif
 }
 
 static inline long regs_return_value(struct pt_regs *regs)
diff --git a/arch/arm/include/asm/system_info.h b/arch/arm/include/asm/system_info.h
index dfd386d0c022..720ea0320a6d 100644
--- a/arch/arm/include/asm/system_info.h
+++ b/arch/arm/include/asm/system_info.h
@@ -11,6 +11,7 @@
 #define CPU_ARCH_ARMv5TEJ	7
 #define CPU_ARCH_ARMv6		8
 #define CPU_ARCH_ARMv7		9
+#define CPU_ARCH_ARMv7M		10
 
 #ifndef __ASSEMBLY__
 
diff --git a/arch/arm/include/asm/v7m.h b/arch/arm/include/asm/v7m.h
new file mode 100644
index 000000000000..fa88d09fa3d9
--- /dev/null
+++ b/arch/arm/include/asm/v7m.h
@@ -0,0 +1,44 @@
+/*
+ * Common defines for v7m cpus
+ */
+#define V7M_SCS_ICTR			IOMEM(0xe000e004)
+#define V7M_SCS_ICTR_INTLINESNUM_MASK		0x0000000f
+
+#define BASEADDR_V7M_SCB		IOMEM(0xe000ed00)
+
+#define V7M_SCB_CPUID			0x00
+
+#define V7M_SCB_ICSR			0x04
+#define V7M_SCB_ICSR_PENDSVSET			(1 << 28)
+#define V7M_SCB_ICSR_PENDSVCLR			(1 << 27)
+#define V7M_SCB_ICSR_RETTOBASE			(1 << 11)
+
+#define V7M_SCB_VTOR			0x08
+
+#define V7M_SCB_SCR			0x10
+#define V7M_SCB_SCR_SLEEPDEEP			(1 << 2)
+
+#define V7M_SCB_CCR			0x14
+#define V7M_SCB_CCR_STKALIGN			(1 << 9)
+
+#define V7M_SCB_SHPR2			0x1c
+#define V7M_SCB_SHPR3			0x20
+
+#define V7M_SCB_SHCSR			0x24
+#define V7M_SCB_SHCSR_USGFAULTENA		(1 << 18)
+#define V7M_SCB_SHCSR_BUSFAULTENA		(1 << 17)
+#define V7M_SCB_SHCSR_MEMFAULTENA		(1 << 16)
+
+#define V7M_xPSR_FRAMEPTRALIGN			0x00000200
+#define V7M_xPSR_EXCEPTIONNO			0x000001ff
+
+/*
+ * When branching to an address that has bits [31:28] == 0xf an exception return
+ * occurs. Bits [27:5] are reserved (SBOP). If the processor implements the FP
+ * extension Bit [4] defines if the exception frame has space allocated for FP
+ * state information, SBOP otherwise. Bit [3] defines the mode that is returned
+ * to (0 -> handler mode; 1 -> thread mode). Bit [2] defines which sp is used
+ * (0 -> msp; 1 -> psp). Bits [1:0] are fixed to 0b01.
+ */
+#define EXC_RET_STACK_MASK			0x00000004
+#define EXC_RET_THREADMODE_PROCESSSTACK		0xfffffffd