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

Pull ARM soc multiplatform enablement from Olof Johansson:
 "This is a pretty significant branch.  It's the introduction of the
  first multiplatform support on ARM, and with this (and the later
  branch) merged, it is now possible to build one kernel that contains
  support for highbank, vexpress, mvebu, socfpga, and picoxcell.  More
  platforms will be convered over in the next few releases.

  Two critical last things had to be done for this to be practical and
  possible:
   * Today each platform has its own include directory under
     mach-<mach>/include/mach/*, and traditionally that is where a lot
     of driver/platform shared definitions have gone, such as platform
     data structures.  They now need to move out to a common location
     instead, and this branch moves a large number of those out to
     include/linux/platform_data.
   * Each platform used to list the device trees to compile for its
     boards in mach-<mach>/Makefile.boot.

  Both of the above changes will mean that there are some merge
  conflicts to come (and some to resolve here).  It's a one-time move
  and once it settles in, we should be good for quite a while.  Sorry
  for the overhead."

Fix conflicts as per Olof.

* tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits)
  ARM: add v7 multi-platform defconfig
  ARM: msm: Move core.h contents into common.h
  ARM: highbank: call highbank_pm_init from .init_machine
  ARM: dtb: move all dtb targets to common Makefile
  ARM: spear: move platform_data definitions
  ARM: samsung: move platform_data definitions
  ARM: orion: move platform_data definitions
  ARM: vexpress: convert to multi-platform
  ARM: initial multiplatform support
  ARM: mvebu: move armada-370-xp.h in mach dir
  ARM: vexpress: remove dependency on mach/* headers
  ARM: picoxcell: remove dependency on mach/* headers
  ARM: move all dtb targets out of Makefile.boot
  ARM: picoxcell: move debug macros to include/debug
  ARM: socfpga: move debug macros to include/debug
  ARM: mvebu: move debug macros to include/debug
  ARM: vexpress: move debug macros to include/debug
  ARM: highbank: move debug macros to include/debug
  ARM: move debug macros to common location
  ARM: make mach/gpio.h headers optional
  ...

4 files changed, 47 insertions, 14 deletions

diff --git a/arch/arm/include/asm/gpio.h b/arch/arm/include/asm/gpio.h
index c402e9b31f4..477e0206e01 100644
--- a/arch/arm/include/asm/gpio.h
+++ b/arch/arm/include/asm/gpio.h
@@ -6,7 +6,9 @@
 #endif
 
 /* not all ARM platforms necessarily support this API ... */
+#ifdef CONFIG_NEED_MACH_GPIO_H
 #include <mach/gpio.h>
+#endif
 
 #ifndef __ARM_GPIOLIB_COMPLEX
 /* Note: this may rely upon the value of ARCH_NR_GPIOS set in mach/gpio.h */
diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h
index 0b1c94b8c65..917d4fcfd9b 100644
--- a/arch/arm/include/asm/mach/arch.h
+++ b/arch/arm/include/asm/mach/arch.h
@@ -14,6 +14,12 @@ struct tag;
 struct meminfo;
 struct sys_timer;
 struct pt_regs;
+struct smp_operations;
+#ifdef CONFIG_SMP
+#define smp_ops(ops) (&(ops))
+#else
+#define smp_ops(ops) (struct smp_operations *)NULL
+#endif
 
 struct machine_desc {
 	unsigned int		nr;		/* architecture number	*/
@@ -35,6 +41,7 @@ struct machine_desc {
 	unsigned char		reserve_lp1 :1;	/* never has lp1	*/
 	unsigned char		reserve_lp2 :1;	/* never has lp2	*/
 	char			restart_mode;	/* default restart mode	*/
+	struct smp_operations	*smp;		/* SMP operations	*/
 	void			(*fixup)(struct tag *, char **,
 					 struct meminfo *);
 	void			(*reserve)(void);/* reserve mem blocks	*/
diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
index ae29293270a..2e3be16c676 100644
--- a/arch/arm/include/asm/smp.h
+++ b/arch/arm/include/asm/smp.h
@@ -60,15 +60,6 @@ extern int boot_secondary(unsigned int cpu, struct task_struct *);
  */
 asmlinkage void secondary_start_kernel(void);
 
-/*
- * Perform platform specific initialisation of the specified CPU.
- */
-extern void platform_secondary_init(unsigned int cpu);
-
-/*
- * Initialize cpu_possible map, and enable coherency
- */
-extern void platform_smp_prepare_cpus(unsigned int);
 
 /*
  * Initial data for bringing up a secondary CPU.
@@ -79,18 +70,47 @@ struct secondary_data {
 	void *stack;
 };
 extern struct secondary_data secondary_data;
+extern volatile int pen_release;
 
 extern int __cpu_disable(void);
-extern int platform_cpu_disable(unsigned int cpu);
 
 extern void __cpu_die(unsigned int cpu);
 extern void cpu_die(void);
 
-extern void platform_cpu_die(unsigned int cpu);
-extern int platform_cpu_kill(unsigned int cpu);
-extern void platform_cpu_enable(unsigned int cpu);
-
 extern void arch_send_call_function_single_ipi(int cpu);
 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
 
+struct smp_operations {
+#ifdef CONFIG_SMP
+	/*
+	 * Setup the set of possible CPUs (via set_cpu_possible)
+	 */
+	void (*smp_init_cpus)(void);
+	/*
+	 * Initialize cpu_possible map, and enable coherency
+	 */
+	void (*smp_prepare_cpus)(unsigned int max_cpus);
+
+	/*
+	 * Perform platform specific initialisation of the specified CPU.
+	 */
+	void (*smp_secondary_init)(unsigned int cpu);
+	/*
+	 * Boot a secondary CPU, and assign it the specified idle task.
+	 * This also gives us the initial stack to use for this CPU.
+	 */
+	int  (*smp_boot_secondary)(unsigned int cpu, struct task_struct *idle);
+#ifdef CONFIG_HOTPLUG_CPU
+	int  (*cpu_kill)(unsigned int cpu);
+	void (*cpu_die)(unsigned int cpu);
+	int  (*cpu_disable)(unsigned int cpu);
+#endif
+#endif
+};
+
+/*
+ * set platform specific SMP operations
+ */
+extern void smp_set_ops(struct smp_operations *);
+
 #endif /* ifndef __ASM_ARM_SMP_H */
diff --git a/arch/arm/include/asm/timex.h b/arch/arm/include/asm/timex.h
index ce119442277..963342acebb 100644
--- a/arch/arm/include/asm/timex.h
+++ b/arch/arm/include/asm/timex.h
@@ -13,7 +13,11 @@
 #define _ASMARM_TIMEX_H
 
 #include <asm/arch_timer.h>
+#ifdef CONFIG_ARCH_MULTIPLATFORM
+#define CLOCK_TICK_RATE 1000000
+#else
 #include <mach/timex.h>
+#endif
 
 typedef unsigned long cycles_t;