Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm

* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (416 commits)
  ARM: DMA: add support for DMA debugging
  ARM: PL011: add DMA burst threshold support for ST variants
  ARM: PL011: Add support for transmit DMA
  ARM: PL011: Ensure IRQs are disabled in UART interrupt handler
  ARM: PL011: Separate hardware FIFO size from TTY FIFO size
  ARM: PL011: Allow better handling of vendor data
  ARM: PL011: Ensure error flags are clear at startup
  ARM: PL011: include revision number in boot-time port printk
  ARM: vexpress: add sched_clock() for Versatile Express
  ARM i.MX53: Make MX53 EVK bootable
  ARM i.MX53: Some bug fix about MX53 MSL code
  ARM: 6607/1: sa1100: Update platform device registration
  ARM: 6606/1: sa1100: Fix platform device registration
  ARM i.MX51: rename IPU irqs
  ARM i.MX51: Add ipu clock support
  ARM: imx/mx27_3ds: Add PMIC support
  ARM: DMA: Replace page_to_dma()/dma_to_page() with pfn_to_dma()/dma_to_pfn()
  mx51: fix usb clock support
  MX51: Add support for usb host 2
  arch/arm/plat-mxc/ehci.c: fix errors/typos
  ...

7 files changed, 57 insertions, 137 deletions

diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c
index ed8d330..ebb888f 100644
--- a/arch/arm/mach-omap2/dpll3xxx.c
+++ b/arch/arm/mach-omap2/dpll3xxx.c
@@ -26,10 +26,10 @@
 #include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/bitops.h>
+#include <linux/clkdev.h>
 
 #include <plat/cpu.h>
 #include <plat/clock.h>
-#include <asm/clkdev.h>
 
 #include "clock.h"
 #include "prm.h"
diff --git a/arch/arm/mach-omap2/include/mach/entry-macro.S b/arch/arm/mach-omap2/include/mach/entry-macro.S
index 06e64e1..d54c4f8 100644
--- a/arch/arm/mach-omap2/include/mach/entry-macro.S
+++ b/arch/arm/mach-omap2/include/mach/entry-macro.S
@@ -105,6 +105,35 @@ omap_irq_base:	.word	0
 9999:
 		.endm
 
+#ifdef CONFIG_SMP
+		/* We assume that irqstat (the raw value of the IRQ acknowledge
+		 * register) is preserved from the macro above.
+		 * If there is an IPI, we immediately signal end of interrupt
+		 * on the controller, since this requires the original irqstat
+		 * value which we won't easily be able to recreate later.
+		 */
+
+		.macro test_for_ipi, irqnr, irqstat, base, tmp
+		bic	\irqnr, \irqstat, #0x1c00
+		cmp	\irqnr, #16
+		it	cc
+		strcc	\irqstat, [\base, #GIC_CPU_EOI]
+		it	cs
+		cmpcs	\irqnr, \irqnr
+		.endm
+
+		/* As above, this assumes that irqstat and base are preserved */
+
+		.macro test_for_ltirq, irqnr, irqstat, base, tmp
+		bic	\irqnr, \irqstat, #0x1c00
+		mov 	\tmp, #0
+		cmp	\irqnr, #29
+		itt	eq
+		moveq	\tmp, #1
+		streq	\irqstat, [\base, #GIC_CPU_EOI]
+		cmp	\tmp, #0
+		.endm
+#endif	/* CONFIG_SMP */
 
 #else	/* MULTI_OMAP2 */
 
@@ -141,74 +170,16 @@ omap_irq_base:	.word	0
 
 
 #ifdef CONFIG_ARCH_OMAP4
+#define HAVE_GET_IRQNR_PREAMBLE
+#include <asm/hardware/entry-macro-gic.S>
 
 		.macro  get_irqnr_preamble, base, tmp
 		ldr     \base, =OMAP4_IRQ_BASE
 		.endm
 
-		/*
-		 * The interrupt numbering scheme is defined in the
-		 * interrupt controller spec.  To wit:
-		 *
-		 * Interrupts 0-15 are IPI
-		 * 16-28 are reserved
-		 * 29-31 are local.  We allow 30 to be used for the watchdog.
-		 * 32-1020 are global
-		 * 1021-1022 are reserved
-		 * 1023 is "spurious" (no interrupt)
-		 *
-		 * For now, we ignore all local interrupts so only return an
-		 * interrupt if it's between 30 and 1020.  The test_for_ipi
-		 * routine below will pick up on IPIs.
-		 * A simple read from the controller will tell us the number
-		 * of the highest priority enabled interrupt.
-		 * We then just need to check whether it is in the
-		 * valid range for an IRQ (30-1020 inclusive).
-		 */
-		.macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
-		ldr     \irqstat, [\base, #GIC_CPU_INTACK]
-
-		ldr     \tmp, =1021
-
-		bic     \irqnr, \irqstat, #0x1c00
-
-		cmp     \irqnr, #29
-		cmpcc   \irqnr, \irqnr
-		cmpne   \irqnr, \tmp
-		cmpcs   \irqnr, \irqnr
-		.endm
 #endif
-#endif	/* MULTI_OMAP2 */
-
-#ifdef CONFIG_SMP
-		/* We assume that irqstat (the raw value of the IRQ acknowledge
-		 * register) is preserved from the macro above.
-		 * If there is an IPI, we immediately signal end of interrupt
-		 * on the controller, since this requires the original irqstat
-		 * value which we won't easily be able to recreate later.
-		 */
 
-		.macro test_for_ipi, irqnr, irqstat, base, tmp
-		bic	\irqnr, \irqstat, #0x1c00
-		cmp	\irqnr, #16
-		it	cc
-		strcc	\irqstat, [\base, #GIC_CPU_EOI]
-		it	cs
-		cmpcs	\irqnr, \irqnr
-		.endm
-
-		/* As above, this assumes that irqstat and base are preserved */
-
-		.macro test_for_ltirq, irqnr, irqstat, base, tmp
-		bic	\irqnr, \irqstat, #0x1c00
-		mov 	\tmp, #0
-		cmp	\irqnr, #29
-		itt	eq
-		moveq	\tmp, #1
-		streq	\irqstat, [\base, #GIC_CPU_EOI]
-		cmp	\tmp, #0
-		.endm
-#endif	/* CONFIG_SMP */
+#endif	/* MULTI_OMAP2 */
 
 		.macro	irq_prio_table
 		.endm
diff --git a/arch/arm/mach-omap2/include/mach/omap4-common.h b/arch/arm/mach-omap2/include/mach/omap4-common.h
index 2744dfe..5b0270b 100644
--- a/arch/arm/mach-omap2/include/mach/omap4-common.h
+++ b/arch/arm/mach-omap2/include/mach/omap4-common.h
@@ -24,7 +24,6 @@
 extern void __iomem *l2cache_base;
 #endif
 
-extern void __iomem *gic_cpu_base_addr;
 extern void __iomem *gic_dist_base_addr;
 
 extern void __init gic_init_irq(void);
diff --git a/arch/arm/mach-omap2/omap-hotplug.c b/arch/arm/mach-omap2/omap-hotplug.c
index 6cee456..4976b93 100644
--- a/arch/arm/mach-omap2/omap-hotplug.c
+++ b/arch/arm/mach-omap2/omap-hotplug.c
@@ -17,16 +17,13 @@
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/smp.h>
-#include <linux/completion.h>
 
 #include <asm/cacheflush.h>
 #include <mach/omap4-common.h>
 
-static DECLARE_COMPLETION(cpu_killed);
-
 int platform_cpu_kill(unsigned int cpu)
 {
-	return wait_for_completion_timeout(&cpu_killed, 5000);
+	return 1;
 }
 
 /*
@@ -35,15 +32,6 @@ int platform_cpu_kill(unsigned int cpu)
  */
 void platform_cpu_die(unsigned int cpu)
 {
-	unsigned int this_cpu = hard_smp_processor_id();
-
-	if (cpu != this_cpu) {
-		pr_crit("platform_cpu_die running on %u, should be %u\n",
-			   this_cpu, cpu);
-		BUG();
-	}
-	pr_notice("CPU%u: shutdown\n", cpu);
-	complete(&cpu_killed);
 	flush_cache_all();
 	dsb();
 
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index 9e9f70e..b66cfe8 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -21,7 +21,6 @@
 #include <linux/io.h>
 
 #include <asm/cacheflush.h>
-#include <asm/localtimer.h>
 #include <asm/smp_scu.h>
 #include <mach/hardware.h>
 #include <mach/omap4-common.h>
@@ -29,28 +28,16 @@
 /* SCU base address */
 static void __iomem *scu_base;
 
-/*
- * Use SCU config register to count number of cores
- */
-static inline unsigned int get_core_count(void)
-{
-	if (scu_base)
-		return scu_get_core_count(scu_base);
-	return 1;
-}
-
 static DEFINE_SPINLOCK(boot_lock);
 
 void __cpuinit platform_secondary_init(unsigned int cpu)
 {
-	trace_hardirqs_off();
-
 	/*
 	 * If any interrupts are already enabled for the primary
 	 * core (e.g. timer irq), then they will not have been enabled
 	 * for us: do so
 	 */
-	gic_cpu_init(0, gic_cpu_base_addr);
+	gic_secondary_init(0);
 
 	/*
 	 * Synchronise with the boot thread.
@@ -76,7 +63,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
 	omap_modify_auxcoreboot0(0x200, 0xfffffdff);
 	flush_cache_all();
 	smp_wmb();
-	smp_cross_call(cpumask_of(cpu));
+	smp_cross_call(cpumask_of(cpu), 1);
 
 	/*
 	 * Now the secondary core is starting up let it run its
@@ -118,25 +105,9 @@ void __init smp_init_cpus(void)
 	scu_base = ioremap(OMAP44XX_SCU_BASE, SZ_256);
 	BUG_ON(!scu_base);
 
-	ncores = get_core_count();
-
-	for (i = 0; i < ncores; i++)
-		set_cpu_possible(i, true);
-}
-
-void __init smp_prepare_cpus(unsigned int max_cpus)
-{
-	unsigned int ncores = get_core_count();
-	unsigned int cpu = smp_processor_id();
-	int i;
+	ncores = scu_get_core_count(scu_base);
 
 	/* sanity check */
-	if (ncores == 0) {
-		printk(KERN_ERR
-		       "OMAP4: strange core count of 0? Default to 1\n");
-		ncores = 1;
-	}
-
 	if (ncores > NR_CPUS) {
 		printk(KERN_WARNING
 		       "OMAP4: no. of cores (%d) greater than configured "
@@ -144,13 +115,14 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 		       ncores, NR_CPUS);
 		ncores = NR_CPUS;
 	}
-	smp_store_cpu_info(cpu);
 
-	/*
-	 * are we trying to boot more cores than exist?
-	 */
-	if (max_cpus > ncores)
-		max_cpus = ncores;
+	for (i = 0; i < ncores; i++)
+		set_cpu_possible(i, true);
+}
+
+void __init platform_smp_prepare_cpus(unsigned int max_cpus)
+{
+	int i;
 
 	/*
 	 * Initialise the present map, which describes the set of CPUs
@@ -159,18 +131,10 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 	for (i = 0; i < max_cpus; i++)
 		set_cpu_present(i, true);
 
-	if (max_cpus > 1) {
-		/*
-		 * Enable the local timer or broadcast device for the
-		 * boot CPU, but only if we have more than one CPU.
-		 */
-		percpu_timer_setup();
-
-		/*
-		 * Initialise the SCU and wake up the secondary core using
-		 * wakeup_secondary().
-		 */
-		scu_enable(scu_base);
-		wakeup_secondary();
-	}
+	/*
+	 * Initialise the SCU and wake up the secondary core using
+	 * wakeup_secondary().
+	 */
+	scu_enable(scu_base);
+	wakeup_secondary();
 }
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index 2f89555..666e852 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -26,21 +26,22 @@
 void __iomem *l2cache_base;
 #endif
 
-void __iomem *gic_cpu_base_addr;
 void __iomem *gic_dist_base_addr;
 
 
 void __init gic_init_irq(void)
 {
+	void __iomem *gic_cpu_base;
+
 	/* Static mapping, never released */
 	gic_dist_base_addr = ioremap(OMAP44XX_GIC_DIST_BASE, SZ_4K);
 	BUG_ON(!gic_dist_base_addr);
-	gic_dist_init(0, gic_dist_base_addr, 29);
 
 	/* Static mapping, never released */
-	gic_cpu_base_addr = ioremap(OMAP44XX_GIC_CPU_BASE, SZ_512);
-	BUG_ON(!gic_cpu_base_addr);
-	gic_cpu_init(0, gic_cpu_base_addr);
+	gic_cpu_base = ioremap(OMAP44XX_GIC_CPU_BASE, SZ_512);
+	BUG_ON(!gic_cpu_base);
+
+	gic_init(0, 29, gic_dist_base_addr, gic_cpu_base);
 }
 
 #ifdef CONFIG_CACHE_L2X0
diff --git a/arch/arm/mach-omap2/timer-gp.c b/arch/arm/mach-omap2/timer-gp.c
index e13c29e..a7816db 100644
--- a/arch/arm/mach-omap2/timer-gp.c
+++ b/arch/arm/mach-omap2/timer-gp.c
@@ -195,7 +195,6 @@ static struct clocksource clocksource_gpt = {
 	.rating		= 300,
 	.read		= clocksource_read_cycles,
 	.mask		= CLOCKSOURCE_MASK(32),
-	.shift		= 24,
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
@@ -220,9 +219,7 @@ static void __init omap2_gp_clocksource_init(void)
 
 	omap_dm_timer_set_load_start(gpt, 1, 0);
 
-	clocksource_gpt.mult =
-		clocksource_khz2mult(tick_rate/1000, clocksource_gpt.shift);
-	if (clocksource_register(&clocksource_gpt))
+	if (clocksource_register_hz(&clocksource_gpt, tick_rate))
 		printk(err2, clocksource_gpt.name);
 }
 #endif