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
  ...

7 files changed, 23 insertions, 51 deletions

diff --git a/arch/arm/mach-spear13xx/Makefile.boot b/arch/arm/mach-spear13xx/Makefile.boot
index 403efd7e6d27..4674a4c221db 100644
--- a/arch/arm/mach-spear13xx/Makefile.boot
+++ b/arch/arm/mach-spear13xx/Makefile.boot
@@ -1,6 +1,3 @@
 zreladdr-y      += 0x00008000
 params_phys-y   := 0x00000100
 initrd_phys-y   := 0x00800000
-
-dtb-$(CONFIG_MACH_SPEAR1310)    += spear1310-evb.dtb
-dtb-$(CONFIG_MACH_SPEAR1340)    += spear1340-evb.dtb
diff --git a/arch/arm/mach-spear13xx/hotplug.c b/arch/arm/mach-spear13xx/hotplug.c
index 5c6867b46d09..a7d2dd11a4f2 100644
--- a/arch/arm/mach-spear13xx/hotplug.c
+++ b/arch/arm/mach-spear13xx/hotplug.c
@@ -17,8 +17,6 @@
 #include <asm/cp15.h>
 #include <asm/smp_plat.h>
 
-extern volatile int pen_release;
-
 static inline void cpu_enter_lowpower(void)
 {
         unsigned int v;
@@ -56,7 +54,7 @@ static inline void cpu_leave_lowpower(void)
         : "cc");
 }
 
-static inline void platform_do_lowpower(unsigned int cpu, int *spurious)
+static inline void spear13xx_do_lowpower(unsigned int cpu, int *spurious)
 {
         for (;;) {
                 wfi();
@@ -79,17 +77,12 @@ static inline void platform_do_lowpower(unsigned int cpu, int *spurious)
         }
 }
 
-int platform_cpu_kill(unsigned int cpu)
-{
-        return 1;
-}
-
 /*
  * platform-specific code to shutdown a CPU
  *
  * Called with IRQs disabled
  */
-void __cpuinit platform_cpu_die(unsigned int cpu)
+void __ref spear13xx_cpu_die(unsigned int cpu)
 {
         int spurious = 0;
 
@@ -97,7 +90,7 @@ void __cpuinit platform_cpu_die(unsigned int cpu)
          * we're ready for shutdown now, so do it
          */
         cpu_enter_lowpower();
-        platform_do_lowpower(cpu, &spurious);
+        spear13xx_do_lowpower(cpu, &spurious);
 
         /*
          * bring this CPU back into the world of cache
@@ -108,12 +101,3 @@ void __cpuinit platform_cpu_die(unsigned int cpu)
         if (spurious)
                 pr_warn("CPU%u: %u spurious wakeup calls\n", cpu, spurious);
 }
-
-int platform_cpu_disable(unsigned int cpu)
-{
-        /*
-         * we don't allow CPU 0 to be shutdown (it is still too special
-         * e.g. clock tick interrupts)
-         */
-        return cpu == 0 ? -EPERM : 0;
-}
diff --git a/arch/arm/mach-spear13xx/include/mach/generic.h b/arch/arm/mach-spear13xx/include/mach/generic.h
index dac57fd0cdfd..c33f4d9361bd 100644
--- a/arch/arm/mach-spear13xx/include/mach/generic.h
+++ b/arch/arm/mach-spear13xx/include/mach/generic.h
@@ -33,6 +33,9 @@ void __init spear13xx_l2x0_init(void);
 bool dw_dma_filter(struct dma_chan *chan, void *slave);
 void spear_restart(char, const char *);
 void spear13xx_secondary_startup(void);
+void __cpuinit spear13xx_cpu_die(unsigned int cpu);
+
+extern struct smp_operations spear13xx_smp_ops;
 
 #ifdef CONFIG_MACH_SPEAR1310
 void __init spear1310_clk_init(void);
diff --git a/arch/arm/mach-spear13xx/include/mach/gpio.h b/arch/arm/mach-spear13xx/include/mach/gpio.h
deleted file mode 100644
index 85f176311f63..000000000000
--- a/arch/arm/mach-spear13xx/include/mach/gpio.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * arch/arm/mach-spear13xx/include/mach/gpio.h
- *
- * GPIO macros for SPEAr13xx machine family
- *
- * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.linux@gmail.com>
- *
- * 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 __MACH_GPIO_H
-#define __MACH_GPIO_H
-
-#include <plat/gpio.h>
-
-#endif /* __MACH_GPIO_H */
diff --git a/arch/arm/mach-spear13xx/platsmp.c b/arch/arm/mach-spear13xx/platsmp.c
index f5d07f2663d7..2eaa3fa7b432 100644
--- a/arch/arm/mach-spear13xx/platsmp.c
+++ b/arch/arm/mach-spear13xx/platsmp.c
@@ -19,18 +19,13 @@
 #include <asm/hardware/gic.h>
 #include <asm/smp_scu.h>
 #include <mach/spear.h>
+#include <mach/generic.h>
 
-/*
- * control for which core is the next to come out of the secondary
- * boot "holding pen"
- */
-volatile int __cpuinitdata pen_release = -1;
 static DEFINE_SPINLOCK(boot_lock);
 
 static void __iomem *scu_base = IOMEM(VA_SCU_BASE);
-extern void spear13xx_secondary_startup(void);
 
-void __cpuinit platform_secondary_init(unsigned int cpu)
+static void __cpuinit spear13xx_secondary_init(unsigned int cpu)
 {
         /*
          * if any interrupts are already enabled for the primary
@@ -53,7 +48,7 @@ void __cpuinit platform_secondary_init(unsigned int cpu)
         spin_unlock(&boot_lock);
 }
 
-int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
+static int __cpuinit spear13xx_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
         unsigned long timeout;
 
@@ -97,7 +92,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
  * Initialise the CPU possible map early - this describes the CPUs
  * which may be present or become present in the system.
  */
-void __init smp_init_cpus(void)
+static void __init spear13xx_smp_init_cpus(void)
 {
         unsigned int i, ncores = scu_get_core_count(scu_base);
 
@@ -113,7 +108,7 @@ void __init smp_init_cpus(void)
         set_smp_cross_call(gic_raise_softirq);
 }
 
-void __init platform_smp_prepare_cpus(unsigned int max_cpus)
+static void __init spear13xx_smp_prepare_cpus(unsigned int max_cpus)
 {
 
         scu_enable(scu_base);
@@ -125,3 +120,13 @@ void __init platform_smp_prepare_cpus(unsigned int max_cpus)
          */
         __raw_writel(virt_to_phys(spear13xx_secondary_startup), SYS_LOCATION);
 }
+
+struct smp_operations spear13xx_smp_ops __initdata = {
+       .smp_init_cpus           = spear13xx_smp_init_cpus,
+       .smp_prepare_cpus        = spear13xx_smp_prepare_cpus,
+       .smp_secondary_init      = spear13xx_secondary_init,
+       .smp_boot_secondary      = spear13xx_boot_secondary,
+#ifdef CONFIG_HOTPLUG_CPU
+       .cpu_die                 = spear13xx_cpu_die,
+#endif
+};
diff --git a/arch/arm/mach-spear13xx/spear1310.c b/arch/arm/mach-spear13xx/spear1310.c
index 732d29bc7330..9fbbfc5650aa 100644
--- a/arch/arm/mach-spear13xx/spear1310.c
+++ b/arch/arm/mach-spear13xx/spear1310.c
@@ -78,6 +78,7 @@ static void __init spear1310_map_io(void)
 }
 
 DT_MACHINE_START(SPEAR1310_DT, "ST SPEAr1310 SoC with Flattened Device Tree")
+        .smp            =       smp_ops(spear13xx_smp_ops),
         .map_io         =       spear1310_map_io,
         .init_irq       =       spear13xx_dt_init_irq,
         .handle_irq     =       gic_handle_irq,
diff --git a/arch/arm/mach-spear13xx/spear1340.c b/arch/arm/mach-spear13xx/spear1340.c
index 81e4ed76ad06..081014fb314a 100644
--- a/arch/arm/mach-spear13xx/spear1340.c
+++ b/arch/arm/mach-spear13xx/spear1340.c
@@ -182,6 +182,7 @@ static const char * const spear1340_dt_board_compat[] = {
 };
 
 DT_MACHINE_START(SPEAR1340_DT, "ST SPEAr1340 SoC with Flattened Device Tree")
+        .smp            =       smp_ops(spear13xx_smp_ops),
         .map_io         =       spear13xx_map_io,
         .init_irq       =       spear13xx_dt_init_irq,
         .handle_irq     =       gic_handle_irq,