Merge branches 'arm-mm', 'at91', 'clkevts', 'imx', 'iop', 'misc', 'netx', 'ns9xxx', 'omap', 'pxa', 'rpc', 's3c' and 'sa1100' into devel

Documentation/spi/pxa2xx

@@ -62,7 +62,7 @@ static struct resource pxa_spi_nssp_resources[] = {
 
 static struct pxa2xx_spi_master pxa_nssp_master_info = {
 	.ssp_type = PXA25x_NSSP, /* Type of SSP */
-	.clock_enable = CKEN9_NSSP, /* NSSP Peripheral clock */
+	.clock_enable = CKEN_NSSP, /* NSSP Peripheral clock */
 	.num_chipselect = 1, /* Matches the number of chips attached to NSSP */
 	.enable_dma = 1, /* Enables NSSP DMA */
 };

arch/arm/Kconfig

@@ -29,6 +29,10 @@ config GENERIC_TIME
 	bool
 	default n
 
+config GENERIC_CLOCKEVENTS
+	bool
+	default n
+
 config MMU
 	bool
 	default y
@@ -67,6 +71,14 @@ config GENERIC_HARDIRQS
 	bool
 	default y
 
+config STACKTRACE_SUPPORT
+	bool
+	default y
+
+config LOCKDEP_SUPPORT
+	bool
+	default y
+
 config TRACE_IRQFLAGS_SUPPORT
 	bool
 	default y
@@ -162,6 +174,8 @@ config ARCH_VERSATILE
 	select ARM_AMBA
 	select ARM_VIC
 	select ICST307
+	select GENERIC_TIME
+	select GENERIC_CLOCKEVENTS
 	help
 	  This enables support for ARM Ltd Versatile board.
 
@@ -262,6 +276,7 @@ config ARCH_IXP4XX
 	bool "IXP4xx-based"
 	depends on MMU
 	select GENERIC_TIME
+	select GENERIC_CLOCKEVENTS
 	help
 	  Support for Intel's IXP4XX (XScale) family of processors.
 
@@ -363,6 +378,7 @@ config ARCH_LH7A40X
 config ARCH_OMAP
 	bool "TI OMAP"
 	select GENERIC_GPIO
+	select GENERIC_TIME
 	help
 	  Support for TI's OMAP platform (OMAP1 and OMAP2).
 
@@ -513,6 +529,8 @@ endmenu
 
 menu "Kernel Features"
 
+source "kernel/time/Kconfig"
+
 config SMP
 	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
 	depends on EXPERIMENTAL && REALVIEW_MPCORE
@@ -572,6 +590,7 @@ config PREEMPT
 
 config NO_IDLE_HZ
 	bool "Dynamic tick timer"
+	depends on !GENERIC_CLOCKEVENTS
 	help
 	  Select this option if you want to disable continuous timer ticks
 	  and have them programmed to occur as required. This option saves
@@ -669,6 +688,7 @@ config LEDS_TIMER
 	bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
 			    MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
 	depends on LEDS
+	depends on !GENERIC_CLOCKEVENTS
 	default y if ARCH_EBSA110
 	help
 	  If you say Y here, one of the system LEDs (the green one on the

arch/arm/boot/compressed/head-at91rm9200.S

@@ -61,6 +61,12 @@
 		cmp	r7, r3
 		beq	99f
 
+		@ picotux 200 : 963
+		mov	r3,	#(MACH_TYPE_PICOTUX2XX & 0xff)
+		orr	r3, r3, #(MACH_TYPE_PICOTUX2XX & 0xff00)
+		cmp	r7, r3
+		beq	99f
+
 		@ Ajeco 1ARM : 1075
 		mov	r3,	#(MACH_TYPE_ONEARM & 0xff)
 		orr	r3, r3, #(MACH_TYPE_ONEARM & 0xff00)

arch/arm/kernel/Makefile

@@ -7,8 +7,8 @@ AFLAGS_head.o := -DTEXT_OFFSET=$(TEXT_OFFSET)
 # Object file lists.
 
 obj-y		:= compat.o entry-armv.o entry-common.o irq.o \
-		   process.o ptrace.o semaphore.o setup.o signal.o sys_arm.o \
-		   time.o traps.o
+		   process.o ptrace.o semaphore.o setup.o signal.o \
+		   sys_arm.o stacktrace.o time.o traps.o
 
 obj-$(CONFIG_ISA_DMA_API)	+= dma.o
 obj-$(CONFIG_ARCH_ACORN)	+= ecard.o 

arch/arm/kernel/ecard.c

@@ -40,6 +40,7 @@
 #include <linux/device.h>
 #include <linux/init.h>
 #include <linux/mutex.h>
+#include <linux/kthread.h>
 
 #include <asm/dma.h>
 #include <asm/ecard.h>
@@ -50,6 +51,8 @@
 #include <asm/mach/irq.h>
 #include <asm/tlbflush.h>
 
+#include "ecard.h"
+
 #ifndef CONFIG_ARCH_RPC
 #define HAVE_EXPMASK
 #endif
@@ -123,7 +126,7 @@ static void ecard_task_reset(struct ecard_request *req)
 
 	res = ec->slot_no == 8
 		? &ec->resource[ECARD_RES_MEMC]
-		: ec->type == ECARD_EASI
+		: ec->easi
 		  ? &ec->resource[ECARD_RES_EASI]
 		  : &ec->resource[ECARD_RES_IOCSYNC];
 
@@ -178,7 +181,7 @@ static void ecard_task_readbytes(struct ecard_request *req)
 			index += 1;
 		}
 	} else {
-		unsigned long base = (ec->type == ECARD_EASI
+		unsigned long base = (ec->easi
 			 ? &ec->resource[ECARD_RES_EASI]
 			 : &ec->resource[ECARD_RES_IOCSYNC])->start;
 		void __iomem *pbase = (void __iomem *)base;
@@ -263,8 +266,6 @@ static int ecard_init_mm(void)
 static int
 ecard_task(void * unused)
 {
-	daemonize("kecardd");
-
 	/*
 	 * Allocate a mm.  We're not a lazy-TLB kernel task since we need
 	 * to set page table entries where the user space would be.  Note
@@ -727,7 +728,7 @@ static int ecard_prints(char *buffer, ecard_t *ec)
 	char *start = buffer;
 
 	buffer += sprintf(buffer, "  %d: %s ", ec->slot_no,
-			  ec->type == ECARD_EASI ? "EASI" : "    ");
+			  ec->easi ? "EASI" : "    ");
 
 	if (ec->cid.id == 0) {
 		struct in_chunk_dir incd;
@@ -814,7 +815,7 @@ static struct expansion_card *__init ecard_alloc_card(int type, int slot)
 	}
 
 	ec->slot_no = slot;
-	ec->type = type;
+	ec->easi = type == ECARD_EASI;
 	ec->irq = NO_IRQ;
 	ec->fiq = NO_IRQ;
 	ec->dma = NO_DMA;
@@ -825,6 +826,7 @@ static struct expansion_card *__init ecard_alloc_card(int type, int slot)
 	ec->dev.bus = &ecard_bus_type;
 	ec->dev.dma_mask = &ec->dma_mask;
 	ec->dma_mask = (u64)0xffffffff;
+	ec->dev.coherent_dma_mask = ec->dma_mask;
 
 	if (slot < 4) {
 		ec_set_resource(ec, ECARD_RES_MEMC,
@@ -907,7 +909,7 @@ static ssize_t ecard_show_device(struct device *dev, struct device_attribute *at
 static ssize_t ecard_show_type(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct expansion_card *ec = ECARD_DEV(dev);
-	return sprintf(buf, "%s\n", ec->type == ECARD_EASI ? "EASI" : "IOC");
+	return sprintf(buf, "%s\n", ec->easi ? "EASI" : "IOC");
 }
 
 static struct device_attribute ecard_dev_attrs[] = {
@@ -1058,13 +1060,14 @@ ecard_probe(int slot, card_type_t type)
  */
 static int __init ecard_init(void)
 {
-	int slot, irqhw, ret;
+	struct task_struct *task;
+	int slot, irqhw;
 
-	ret = kernel_thread(ecard_task, NULL, CLONE_KERNEL);
-	if (ret < 0) {
-		printk(KERN_ERR "Ecard: unable to create kernel thread: %d\n",
-		       ret);
-		return ret;
+	task = kthread_run(ecard_task, NULL, "kecardd");
+	if (IS_ERR(task)) {
+		printk(KERN_ERR "Ecard: unable to create kernel thread: %ld\n",
+		       PTR_ERR(task));
+		return PTR_ERR(task);
 	}
 
 	printk("Probing expansion cards\n");

arch/arm/kernel/ecard.h

@@ -0,0 +1,56 @@
+/*
+ *  ecard.h
+ *
+ *  Copyright 2007 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* Definitions internal to ecard.c - for it's use only!!
+ *
+ * External expansion card header as read from the card
+ */
+struct ex_ecid {
+	unsigned char	r_irq:1;
+	unsigned char	r_zero:1;
+	unsigned char	r_fiq:1;
+	unsigned char	r_id:4;
+	unsigned char	r_a:1;
+
+	unsigned char	r_cd:1;
+	unsigned char	r_is:1;
+	unsigned char	r_w:2;
+	unsigned char	r_r1:4;
+
+	unsigned char	r_r2:8;
+
+	unsigned char	r_prod[2];
+
+	unsigned char	r_manu[2];
+
+	unsigned char	r_country;
+
+	unsigned char	r_fiqmask;
+	unsigned char	r_fiqoff[3];
+
+	unsigned char	r_irqmask;
+	unsigned char	r_irqoff[3];
+};
+
+/*
+ * Chunk directory entry as read from the card
+ */
+struct ex_chunk_dir {
+	unsigned char r_id;
+	unsigned char r_len[3];
+	unsigned long r_start;
+	union {
+		char string[256];
+		char data[1];
+	} d;
+#define c_id(x)		((x)->r_id)
+#define c_len(x)	((x)->r_len[0]|((x)->r_len[1]<<8)|((x)->r_len[2]<<16))
+#define c_start(x)	((x)->r_start)
+};

arch/arm/kernel/head.S

@@ -257,7 +257,9 @@ __create_page_tables:
 	 * Map some ram to cover our .data and .bss areas.
 	 */
 	orr	r3, r7, #(KERNEL_RAM_PADDR & 0xff000000)
+	.if	(KERNEL_RAM_PADDR & 0x00f00000)
 	orr	r3, r3, #(KERNEL_RAM_PADDR & 0x00f00000)
+	.endif
 	add	r0, r4,  #(KERNEL_RAM_VADDR & 0xff000000) >> 18
 	str	r3, [r0, #(KERNEL_RAM_VADDR & 0x00f00000) >> 18]!
 	ldr	r6, =(_end - 1)
@@ -274,7 +276,9 @@ __create_page_tables:
 	 */
 	add	r0, r4, #PAGE_OFFSET >> 18
 	orr	r6, r7, #(PHYS_OFFSET & 0xff000000)
-	orr	r6, r6, #(PHYS_OFFSET & 0x00e00000)
+	.if	(PHYS_OFFSET & 0x00f00000)
+	orr	r6, r6, #(PHYS_OFFSET & 0x00f00000)
+	.endif
 	str	r6, [r0]
 
 #ifdef CONFIG_DEBUG_LL

arch/arm/kernel/process.c

@@ -27,6 +27,7 @@
 #include <linux/cpu.h>
 #include <linux/elfcore.h>
 #include <linux/pm.h>
+#include <linux/tick.h>
 
 #include <asm/leds.h>
 #include <asm/processor.h>
@@ -159,9 +160,11 @@ void cpu_idle(void)
 		if (!idle)
 			idle = default_idle;
 		leds_event(led_idle_start);
+		tick_nohz_stop_sched_tick();
 		while (!need_resched())
 			idle();
 		leds_event(led_idle_end);
+		tick_nohz_restart_sched_tick();
 		preempt_enable_no_resched();
 		schedule();
 		preempt_disable();

arch/arm/kernel/ptrace.c

@@ -779,8 +779,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 			break;
 
 		case PTRACE_SET_SYSCALL:
+			task_thread_info(child)->syscall = data;
 			ret = 0;
-			child->ptrace_message = data;
 			break;
 
 #ifdef CONFIG_CRUNCH
@@ -817,7 +817,7 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
 	ip = regs->ARM_ip;
 	regs->ARM_ip = why;
 
-	current->ptrace_message = scno;
+	current_thread_info()->syscall = scno;
 
 	/* the 0x80 provides a way for the tracing parent to distinguish
 	   between a syscall stop and SIGTRAP delivery */
@@ -834,5 +834,5 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
 	}
 	regs->ARM_ip = ip;
 
-	return current->ptrace_message;
+	return current_thread_info()->syscall;
 }

arch/arm/kernel/stacktrace.c

@@ -0,0 +1,73 @@
+#include <linux/sched.h>
+#include <linux/stacktrace.h>
+
+#include "stacktrace.h"
+
+int walk_stackframe(unsigned long fp, unsigned long low, unsigned long high,
+		    int (*fn)(struct stackframe *, void *), void *data)
+{
+	struct stackframe *frame;
+
+	do {
+		/*
+		 * Check current frame pointer is within bounds
+		 */
+		if ((fp - 12) < low || fp + 4 >= high)
+			break;
+
+		frame = (struct stackframe *)(fp - 12);
+
+		if (fn(frame, data))
+			break;
+
+		/*
+		 * Update the low bound - the next frame must always
+		 * be at a higher address than the current frame.
+		 */
+		low = fp + 4;
+		fp = frame->fp;
+	} while (fp);
+
+	return 0;
+}
+
+#ifdef CONFIG_STACKTRACE
+struct stack_trace_data {
+	struct stack_trace *trace;
+	unsigned int skip;
+};
+
+static int save_trace(struct stackframe *frame, void *d)
+{
+	struct stack_trace_data *data = d;
+	struct stack_trace *trace = data->trace;
+
+	if (data->skip) {
+		data->skip--;
+		return 0;
+	}
+
+	trace->entries[trace->nr_entries++] = frame->lr;
+
+	return trace->nr_entries >= trace->max_entries;
+}
+
+void save_stack_trace(struct stack_trace *trace, struct task_struct *task)
+{
+	struct stack_trace_data data;
+	unsigned long fp, base;
+
+	data.trace = trace;
+	data.skip = trace->skip;
+
+	if (task) {
+		base = (unsigned long)task_stack_page(task);
+		fp = 0; /* FIXME */
+	} else {
+		base = (unsigned long)task_stack_page(current);
+		asm("mov %0, fp" : "=r" (fp));
+	}
+
+	walk_stackframe(fp, base, base + THREAD_SIZE, save_trace, &data);
+}
+#endif

arch/arm/kernel/stacktrace.h

@@ -0,0 +1,9 @@
+struct stackframe {
+	unsigned long fp;
+	unsigned long sp;
+	unsigned long lr;
+	unsigned long pc;
+};
+
+int walk_stackframe(unsigned long fp, unsigned long low, unsigned long high,
+		    int (*fn)(struct stackframe *, void *), void *data);

arch/arm/kernel/time.c

@@ -327,6 +327,7 @@ void restore_time_delta(struct timespec *delta, struct timespec *rtc)
 }
 EXPORT_SYMBOL(restore_time_delta);
 
+#ifndef CONFIG_GENERIC_CLOCKEVENTS
 /*
  * Kernel system timer support.
  */
@@ -340,8 +341,9 @@ void timer_tick(void)
 	update_process_times(user_mode(get_irq_regs()));
 #endif
 }
+#endif
 
-#ifdef CONFIG_PM
+#if defined(CONFIG_PM) && !defined(CONFIG_GENERIC_CLOCKEVENTS)
 static int timer_suspend(struct sys_device *dev, pm_message_t state)
 {
 	struct sys_timer *timer = container_of(dev, struct sys_timer, dev);

arch/arm/kernel/traps.c

@@ -286,6 +286,7 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
 	struct undef_hook *hook;
 	siginfo_t info;
 	void __user *pc;
+	unsigned long flags;
 
 	/*
 	 * According to the ARM ARM, PC is 2 or 4 bytes ahead,
@@ -304,7 +305,7 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
 		get_user(instr, (u32 __user *)pc);
 	}
 
-	spin_lock_irq(&undef_lock);
+	spin_lock_irqsave(&undef_lock, flags);
 	list_for_each_entry(hook, &undef_hook, node) {
 		if ((instr & hook->instr_mask) == hook->instr_val &&
 		    (regs->ARM_cpsr & hook->cpsr_mask) == hook->cpsr_val) {
@@ -314,7 +315,7 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
 			}
 		}
 	}
-	spin_unlock_irq(&undef_lock);
+	spin_unlock_irqrestore(&undef_lock, flags);
 
 #ifdef CONFIG_DEBUG_USER
 	if (user_debug & UDBG_UNDEFINED) {

arch/arm/mach-at91/Kconfig

@@ -81,6 +81,13 @@ config MACH_KB9200
 	  Select this if you are using KwikByte's KB920x board.
 	  <http://kwikbyte.com/KB9202_description_new.htm>
 
+config MACH_PICOTUX2XX
+	bool "picotux 200"
+	depends on ARCH_AT91RM9200
+	help
+	  Select this if you are using a picotux 200.
+	  <http://www.picotux.com/>
+
 config MACH_KAFA
 	bool "Sperry-Sun KAFA board"
 	depends on ARCH_AT91RM9200

arch/arm/mach-at91/Makefile

@@ -25,6 +25,7 @@ obj-$(CONFIG_MACH_CARMEVA)	+= board-carmeva.o
 obj-$(CONFIG_MACH_KB9200)	+= board-kb9202.o
 obj-$(CONFIG_MACH_ATEB9200)	+= board-eb9200.o
 obj-$(CONFIG_MACH_KAFA)		+= board-kafa.o
+obj-$(CONFIG_MACH_PICOTUX2XX)	+= board-picotux200.o
 
 # AT91SAM9260 board-specific support
 obj-$(CONFIG_MACH_AT91SAM9260EK) += board-sam9260ek.o

arch/arm/mach-at91/at91rm9200.c

@@ -117,6 +117,21 @@ static struct clk pioD_clk = {
 	.pmc_mask	= 1 << AT91RM9200_ID_PIOD,
 	.type		= CLK_TYPE_PERIPHERAL,
 };
+static struct clk ssc0_clk = {
+	.name		= "ssc0_clk",
+	.pmc_mask	= 1 << AT91RM9200_ID_SSC0,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk ssc1_clk = {
+	.name		= "ssc1_clk",
+	.pmc_mask	= 1 << AT91RM9200_ID_SSC1,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk ssc2_clk = {
+	.name		= "ssc2_clk",
+	.pmc_mask	= 1 << AT91RM9200_ID_SSC2,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
 static struct clk tc0_clk = {
 	.name		= "tc0_clk",
 	.pmc_mask	= 1 << AT91RM9200_ID_TC0,
@@ -161,7 +176,9 @@ static struct clk *periph_clocks[] __initdata = {
 	&udc_clk,
 	&twi_clk,
 	&spi_clk,
-	// ssc 0 .. ssc2
+	&ssc0_clk,
+	&ssc1_clk,
+	&ssc2_clk,
 	&tc0_clk,
 	&tc1_clk,
 	&tc2_clk,

arch/arm/mach-at91/at91sam9260.c

@@ -119,6 +119,11 @@ static struct clk spi1_clk = {
 	.pmc_mask	= 1 << AT91SAM9260_ID_SPI1,
 	.type		= CLK_TYPE_PERIPHERAL,
 };
+static struct clk ssc_clk = {
+	.name		= "ssc_clk",
+	.pmc_mask	= 1 << AT91SAM9260_ID_SSC,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
 static struct clk tc0_clk = {
 	.name		= "tc0_clk",
 	.pmc_mask	= 1 << AT91SAM9260_ID_TC0,
@@ -193,7 +198,7 @@ static struct clk *periph_clocks[] __initdata = {
 	&twi_clk,
 	&spi0_clk,
 	&spi1_clk,
-	// ssc
+	&ssc_clk,
 	&tc0_clk,
 	&tc1_clk,
 	&tc2_clk,

arch/arm/mach-at91/at91sam9261.c

@@ -97,6 +97,21 @@ static struct clk spi1_clk = {
 	.pmc_mask	= 1 << AT91SAM9261_ID_SPI1,
 	.type		= CLK_TYPE_PERIPHERAL,
 };
+static struct clk ssc0_clk = {
+	.name		= "ssc0_clk",
+	.pmc_mask	= 1 << AT91SAM9261_ID_SSC0,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk ssc1_clk = {
+	.name		= "ssc1_clk",
+	.pmc_mask	= 1 << AT91SAM9261_ID_SSC1,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
+static struct clk ssc2_clk = {
+	.name		= "ssc2_clk",
+	.pmc_mask	= 1 << AT91SAM9261_ID_SSC2,
+	.type		= CLK_TYPE_PERIPHERAL,
+};
 static struct clk tc0_clk = {
 	.name		= "tc0_clk",
 	.pmc_mask	= 1 << AT91SAM9261_ID_TC0,
@@ -135,7 +150,9 @@ static struct clk *periph_clocks[] __initdata = {
 	&twi_clk,
 	&spi0_clk,
 	&spi1_clk,
-	// ssc 0 .. ssc2
+	&ssc0_clk,
+	&ssc1_clk,
+	&ssc2_clk,
 	&tc0_clk,
 	&tc1_clk,
 	&tc2_clk,

arch/arm/mach-at91/at91sam9261_devices.c

@@ -430,9 +430,9 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
  *  LCD Controller
  * -------------------------------------------------------------------- */
 
-#if defined(CONFIG_FB_AT91) || defined(CONFIG_FB_AT91_MODULE)
+#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 static u64 lcdc_dmamask = 0xffffffffUL;
-static struct at91fb_info lcdc_data;
+static struct atmel_lcdfb_info lcdc_data;
 
 static struct resource lcdc_resources[] = {
 	[0] = {
@@ -455,7 +455,7 @@ static struct resource lcdc_resources[] = {
 };
 
 static struct platform_device at91_lcdc_device = {
-	.name		= "at91-fb",
+	.name		= "atmel_lcdfb",
 	.id		= 0,
 	.dev		= {
 				.dma_mask		= &lcdc_dmamask,
@@ -466,7 +466,7 @@ static struct platform_device at91_lcdc_device = {
 	.num_resources	= ARRAY_SIZE(lcdc_resources),
 };
 
-void __init at91_add_device_lcdc(struct at91fb_info *data)
+void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
 {
 	if (!data) {
 		return;
@@ -499,7 +499,7 @@ void __init at91_add_device_lcdc(struct at91fb_info *data)
 	platform_device_register(&at91_lcdc_device);
 }
 #else
-void __init at91_add_device_lcdc(struct at91fb_info *data) {}
+void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
 #endif