Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
  [AVR32] extint: Set initial irq type to low level
  [AVR32] extint: change set_irq_type() handling
  [AVR32] NMI debugging
  [AVR32] constify function pointer tables
  [AVR32] ATNGW100: Update defconfig
  [AVR32] ATSTK1002: Update defconfig
  [AVR32] Kconfig: Choose daughterboard instead of CPU
  [AVR32] Add support for ATSTK1003 and ATSTK1004
  [AVR32] Clean up external DAC setup code
  [AVR32] ATSTK1000: Move gpio-leds setup to setup.c
  [AVR32] Add support for AT32AP7001 and AT32AP7002
  [AVR32] Provide more CPU information in /proc/cpuinfo and dmesg
  [AVR32] Oprofile support
  [AVR32] Include instrumentation menu
  Disable VGA text console for AVR32 architecture
  [AVR32] Enable debugging only when needed
  ptrace: Call arch_ptrace_attach() when request=PTRACE_TRACEME
  [AVR32] Remove redundant try_to_freeze() call from do_signal()
  [AVR32] Drop GFP_COMP for DMA memory allocations

Documentation/kernel-parameters.txt

@@ -34,6 +34,7 @@ parameter is applicable:
 	ALSA	ALSA sound support is enabled.
 	APIC	APIC support is enabled.
 	APM	Advanced Power Management support is enabled.
+	AVR32	AVR32 architecture is enabled.
 	AX25	Appropriate AX.25 support is enabled.
 	BLACKFIN Blackfin architecture is enabled.
 	DRM	Direct Rendering Management support is enabled.
@@ -1123,6 +1124,10 @@ and is between 256 and 4096 characters. It is defined in the file
 			of returning the full 64-bit number.
 			The default is to return 64-bit inode numbers.
 
+	nmi_debug=	[KNL,AVR32] Specify one or more actions to take
+			when a NMI is triggered.
+			Format: [state][,regs][,debounce][,die]
+
 	nmi_watchdog=	[KNL,BUGS=X86-32] Debugging features for SMP kernels
 
 	no387		[BUGS=X86-32] Tells the kernel to use the 387 maths

arch/avr32/Kconfig

@@ -54,6 +54,9 @@ config ARCH_HAS_ILOG2_U32
 config ARCH_HAS_ILOG2_U64
 	def_bool n
 
+config ARCH_SUPPORTS_OPROFILE
+	def_bool y
+
 config GENERIC_HWEIGHT
 	def_bool y
 
@@ -81,19 +84,23 @@ config PLATFORM_AT32AP
 	select MMU
 	select PERFORMANCE_COUNTERS
 
-choice
-	prompt "AVR32 CPU type"
-	default CPU_AT32AP7000
+#
+# CPU types
+#
 
-config CPU_AT32AP7000
-	bool "AT32AP7000"
+# AP7000 derivatives
+config CPU_AT32AP700X
+	bool
 	select PLATFORM_AT32AP
-endchoice
-
-#
-# CPU Daughterboards for ATSTK1000
-config BOARD_ATSTK1002
+config CPU_AT32AP7000
+	bool
+	select CPU_AT32AP700X
+config CPU_AT32AP7001
+	bool
+	select CPU_AT32AP700X
+config CPU_AT32AP7002
 	bool
+	select CPU_AT32AP700X
 
 choice
 	prompt "AVR32 board type"
@@ -101,10 +108,10 @@ choice
 
 config BOARD_ATSTK1000
 	bool "ATSTK1000 evaluation board"
-	select BOARD_ATSTK1002 if CPU_AT32AP7000
 
 config BOARD_ATNGW100
 	bool "ATNGW100 Network Gateway"
+	select CPU_AT32AP7000
 endchoice
 
 if BOARD_ATSTK1000
@@ -123,15 +130,15 @@ source "arch/avr32/mach-at32ap/Kconfig"
 
 config LOAD_ADDRESS
 	hex
-	default 0x10000000 if LOADER_U_BOOT=y && CPU_AT32AP7000=y
+	default 0x10000000 if LOADER_U_BOOT=y && CPU_AT32AP700X=y
 
 config ENTRY_ADDRESS
 	hex
-	default 0x90000000 if LOADER_U_BOOT=y && CPU_AT32AP7000=y
+	default 0x90000000 if LOADER_U_BOOT=y && CPU_AT32AP700X=y
 
 config PHYS_OFFSET
 	hex
-	default 0x10000000 if CPU_AT32AP7000=y
+	default 0x10000000 if CPU_AT32AP700X=y
 
 source "kernel/Kconfig.preempt"
 
@@ -163,6 +170,16 @@ config OWNERSHIP_TRACE
 	  enabling Nexus-compliant debuggers to keep track of the PID of the
 	  currently executing task.
 
+config NMI_DEBUGGING
+	bool "NMI Debugging"
+	default n
+	help
+	  Say Y here and pass the nmi_debug command-line parameter to
+	  the kernel to turn on NMI debugging. Depending on the value
+	  of the nmi_debug option, various pieces of information will
+	  be dumped to the console when a Non-Maskable Interrupt
+	  happens.
+
 # FPU emulation goes here
 
 source "kernel/Kconfig.hz"
@@ -219,6 +236,8 @@ source "drivers/Kconfig"
 
 source "fs/Kconfig"
 
+source "kernel/Kconfig.instrumentation"
+
 source "arch/avr32/Kconfig.debug"
 
 source "security/Kconfig"

arch/avr32/Kconfig.debug

@@ -6,14 +6,4 @@ config TRACE_IRQFLAGS_SUPPORT
 
 source "lib/Kconfig.debug"
 
-config KPROBES
-	bool "Kprobes"
-	depends on DEBUG_KERNEL
-	help
-	  Kprobes allows you to trap at almost any kernel address and
-          execute a callback function.  register_kprobe() establishes
-          a probepoint and specifies the callback.  Kprobes is useful
-          for kernel debugging, non-intrusive instrumentation and testing.
-          If in doubt, say "N".
-
 endmenu

arch/avr32/Makefile

@@ -16,7 +16,7 @@ KBUILD_AFLAGS	+= -mrelax -mno-pic
 CFLAGS_MODULE	+= -mno-relax
 LDFLAGS_vmlinux	+= --relax
 
-cpuflags-$(CONFIG_CPU_AT32AP7000)	+= -mcpu=ap7000
+cpuflags-$(CONFIG_PLATFORM_AT32AP)	+= -march=ap
 
 KBUILD_CFLAGS	+= $(cpuflags-y)
 KBUILD_AFLAGS	+= $(cpuflags-y)
@@ -31,6 +31,7 @@ core-$(CONFIG_BOARD_ATNGW100)		+= arch/avr32/boards/atngw100/
 core-$(CONFIG_LOADER_U_BOOT)		+= arch/avr32/boot/u-boot/
 core-y					+= arch/avr32/kernel/
 core-y					+= arch/avr32/mm/
+drivers-$(CONFIG_OPROFILE)		+= arch/avr32/oprofile/
 libs-y					+= arch/avr32/lib/
 
 archincdir-$(CONFIG_PLATFORM_AT32AP)	:= arch-at32ap

arch/avr32/boards/atngw100/setup.c

@@ -20,7 +20,7 @@
 #include <asm/io.h>
 #include <asm/setup.h>
 
-#include <asm/arch/at32ap7000.h>
+#include <asm/arch/at32ap700x.h>
 #include <asm/arch/board.h>
 #include <asm/arch/init.h>
 #include <asm/arch/portmux.h>

arch/avr32/boards/atstk1000/Kconfig

 # STK1000 customization
 
-if BOARD_ATSTK1002
+if BOARD_ATSTK1000
 
-config BOARD_ATSTK1002_CUSTOM
-	bool "Non-default STK-1002 jumper settings"
+choice
+	prompt "ATSTK1000 CPU daughterboard type"
+	default BOARD_ATSTK1002
+
+config BOARD_ATSTK1002
+	bool "ATSTK1002"
+	select CPU_AT32AP7000
+
+config BOARD_ATSTK1003
+	bool "ATSTK1003"
+	select CPU_AT32AP7001
+
+config BOARD_ATSTK1004
+	bool "ATSTK1004"
+	select CPU_AT32AP7002
+
+endchoice
+
+
+config BOARD_ATSTK100X_CUSTOM
+	bool "Non-default STK1002/STK1003/STK1004 jumper settings"
 	help
 	  You will normally leave the jumpers on the CPU card at their
 	  default settings.  If you need to use certain peripherals,
 	  you will need to change some of those jumpers.
 
-if BOARD_ATSTK1002_CUSTOM
+if BOARD_ATSTK100X_CUSTOM
 
-config BOARD_ATSTK1002_SW1_CUSTOM
+config BOARD_ATSTK100X_SW1_CUSTOM
 	bool "SW1: use SSC1 (not SPI0)"
 	help
 	  This also prevents using the external DAC as an audio interface,
 	  and means you can't initialize the on-board QVGA display.
 
-config BOARD_ATSTK1002_SW2_CUSTOM
+config BOARD_ATSTK100X_SW2_CUSTOM
 	bool "SW2: use IRDA or TIMER0 (not UART-A, MMC/SD, and PS2-A)"
 	help
 	  If you change this you'll want an updated boot loader putting
 	  the console on UART-C not UART-A.
 
-config BOARD_ATSTK1002_SW3_CUSTOM
+config BOARD_ATSTK100X_SW3_CUSTOM
 	bool "SW3: use TIMER1 (not SSC0 and GCLK)"
 	help
 	  This also prevents using the external DAC as an audio interface.
 
-config BOARD_ATSTK1002_SW4_CUSTOM
+config BOARD_ATSTK100X_SW4_CUSTOM
 	bool "SW4: use ISI/Camera (not GPIOs, SPI1, and PS2-B)"
 	help
 	  To use the camera interface you'll need a custom card (on the
@@ -36,27 +55,29 @@ config BOARD_ATSTK1002_SW4_CUSTOM
 
 config BOARD_ATSTK1002_SW5_CUSTOM
 	bool "SW5: use MACB1 (not LCDC)"
+	depends on BOARD_ATSTK1002
 
 config BOARD_ATSTK1002_SW6_CUSTOM
 	bool "SW6: more GPIOs (not MACB0)"
+	depends on BOARD_ATSTK1002
 
 endif	# custom
 
-config BOARD_ATSTK1002_SPI1
+config BOARD_ATSTK100X_SPI1
 	bool "Configure SPI1 controller"
-	depends on !BOARD_ATSTK1002_SW4_CUSTOM
+	depends on !BOARD_ATSTK100X_SW4_CUSTOM
 	help
 	  All the signals for the second SPI controller are available on
 	  GPIO lines and accessed through the J1 jumper block.  Say "y"
 	  here to configure that SPI controller.
 
-config BOARD_ATSTK1002_J2_LED
+config BOARD_ATSTK1000_J2_LED
 	bool
-	default BOARD_ATSTK1002_J2_LED8 || BOARD_ATSTK1002_J2_RGB
+	default BOARD_ATSTK1000_J2_LED8 || BOARD_ATSTK1000_J2_RGB
 
 choice
 	prompt "LEDs connected to J2:"
-	depends on LEDS_GPIO && !BOARD_ATSTK1002_SW4_CUSTOM
+	depends on LEDS_GPIO && !BOARD_ATSTK100X_SW4_CUSTOM
 	optional
 	help
 	  Select this if you have jumpered the J2 jumper block to the
@@ -64,16 +85,21 @@ choice
 	  IDC cable.  A default "heartbeat" trigger is provided, but
 	  you can of course override this.
 
-config BOARD_ATSTK1002_J2_LED8
+config BOARD_ATSTK1000_J2_LED8
 	bool "LED0..LED7"
 	help
 	  Select this if J2 is jumpered to LED0..LED7 amber leds.
 
-config BOARD_ATSTK1002_J2_RGB
+config BOARD_ATSTK1000_J2_RGB
 	bool "RGB leds"
 	help
 	  Select this if J2 is jumpered to the RGB leds.
 
 endchoice
 
-endif	# stk 1002
+config BOARD_ATSTK1000_EXTDAC
+	bool
+	depends on !BOARD_ATSTK100X_SW1_CUSTOM && !BOARD_ATSTK100X_SW3_CUSTOM
+	default y
+
+endif	# stk 1000

arch/avr32/boards/atstk1000/Makefile

 obj-y				+= setup.o flash.o
 obj-$(CONFIG_BOARD_ATSTK1002)	+= atstk1002.o
+obj-$(CONFIG_BOARD_ATSTK1003)	+= atstk1003.o
+obj-$(CONFIG_BOARD_ATSTK1004)	+= atstk1004.o

arch/avr32/boards/atstk1000/atstk1000.h

@@ -12,4 +12,6 @@
 
 extern struct atmel_lcdfb_info atstk1000_lcdc_data;
 
+void atstk1000_setup_j2_leds(void);
+
 #endif /* __ARCH_AVR32_BOARDS_ATSTK1000_ATSTK1000_H */

arch/avr32/boards/atstk1000/atstk1002.c

@@ -11,7 +11,6 @@
 #include <linux/etherdevice.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
-#include <linux/leds.h>
 #include <linux/platform_device.h>
 #include <linux/string.h>
 #include <linux/types.h>
@@ -22,7 +21,7 @@
 
 #include <asm/io.h>
 #include <asm/setup.h>
-#include <asm/arch/at32ap7000.h>
+#include <asm/arch/at32ap700x.h>
 #include <asm/arch/board.h>
 #include <asm/arch/init.h>
 #include <asm/arch/portmux.h>
@@ -49,18 +48,16 @@ static struct eth_platform_data __initdata eth_data[2] = {
 	},
 };
 
-#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
-#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
 static struct at73c213_board_info at73c213_data = {
 	.ssc_id		= 0,
 	.shortname	= "AVR32 STK1000 external DAC",
 };
 #endif
-#endif
 
-#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
+#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
 static struct spi_board_info spi0_board_info[] __initdata = {
-#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
 	{
 		/* AT73C213 */
 		.modalias	= "at73c213",
@@ -80,7 +77,7 @@ static struct spi_board_info spi0_board_info[] __initdata = {
 };
 #endif
 
-#ifdef CONFIG_BOARD_ATSTK1002_SPI1
+#ifdef CONFIG_BOARD_ATSTK100X_SPI1
 static struct spi_board_info spi1_board_info[] __initdata = { {
 	/* patch in custom entries here */
 } };
@@ -141,68 +138,8 @@ static void __init set_hw_addr(struct platform_device *pdev)
 	clk_put(pclk);
 }
 
-#ifdef CONFIG_BOARD_ATSTK1002_J2_LED
-
-static struct gpio_led stk_j2_led[] = {
-#ifdef CONFIG_BOARD_ATSTK1002_J2_LED8
-#define LEDSTRING "J2 jumpered to LED8"
-	{ .name = "led0:amber", .gpio = GPIO_PIN_PB( 8), },
-	{ .name = "led1:amber", .gpio = GPIO_PIN_PB( 9), },
-	{ .name = "led2:amber", .gpio = GPIO_PIN_PB(10), },
-	{ .name = "led3:amber", .gpio = GPIO_PIN_PB(13), },
-	{ .name = "led4:amber", .gpio = GPIO_PIN_PB(14), },
-	{ .name = "led5:amber", .gpio = GPIO_PIN_PB(15), },
-	{ .name = "led6:amber", .gpio = GPIO_PIN_PB(16), },
-	{ .name = "led7:amber", .gpio = GPIO_PIN_PB(30),
-			.default_trigger = "heartbeat", },
-#else	/* RGB */
-#define LEDSTRING "J2 jumpered to RGB LEDs"
-	{ .name = "r1:red",     .gpio = GPIO_PIN_PB( 8), },
-	{ .name = "g1:green",   .gpio = GPIO_PIN_PB(10), },
-	{ .name = "b1:blue",    .gpio = GPIO_PIN_PB(14), },
-
-	{ .name = "r2:red",     .gpio = GPIO_PIN_PB( 9),
-			.default_trigger = "heartbeat", },
-	{ .name = "g2:green",   .gpio = GPIO_PIN_PB(13), },
-	{ .name = "b2:blue",    .gpio = GPIO_PIN_PB(15),
-			.default_trigger = "heartbeat", },
-	/* PB16, PB30 unused */
-#endif
-};
-
-static struct gpio_led_platform_data stk_j2_led_data = {
-	.num_leds	= ARRAY_SIZE(stk_j2_led),
-	.leds		= stk_j2_led,
-};
-
-static struct platform_device stk_j2_led_dev = {
-	.name		= "leds-gpio",
-	.id		= 2,	/* gpio block J2 */
-	.dev		= {
-		.platform_data	= &stk_j2_led_data,
-	},
-};
-
-static void setup_j2_leds(void)
-{
-	unsigned	i;
-
-	for (i = 0; i < ARRAY_SIZE(stk_j2_led); i++)
-		at32_select_gpio(stk_j2_led[i].gpio, AT32_GPIOF_OUTPUT);
-
-	printk("STK1002: " LEDSTRING "\n");
-	platform_device_register(&stk_j2_led_dev);
-}
-
-#else
-static void setup_j2_leds(void)
-{
-}
-#endif
-
-#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
-#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
-static void __init at73c213_set_clk(struct at73c213_board_info *info)
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+static void __init atstk1002_setup_extdac(void)
 {
 	struct clk *gclk;
 	struct clk *pll;
@@ -220,7 +157,7 @@ static void __init at73c213_set_clk(struct at73c213_board_info *info)
 	}
 
 	at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
-	info->dac_clk = gclk;
+	at73c213_data.dac_clk = gclk;
 
 err_set_clk:
 	clk_put(pll);
@@ -229,12 +166,16 @@ static void __init at73c213_set_clk(struct at73c213_board_info *info)
 err_gclk:
 	return;
 }
-#endif
-#endif
+#else
+static void __init atstk1002_setup_extdac(void)
+{
+
+}
+#endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
 
 void __init setup_board(void)
 {
-#ifdef	CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
+#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
 	at32_map_usart(0, 1);	/* USART 0/B: /dev/ttyS1, IRDA */
 #else
 	at32_map_usart(1, 0);	/* USART 1/A: /dev/ttyS0, DB9 */
@@ -271,7 +212,7 @@ static int __init atstk1002_init(void)
 
 	at32_add_system_devices();
 
-#ifdef	CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
+#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
 	at32_add_device_usart(1);
 #else
 	at32_add_device_usart(0);
@@ -281,10 +222,10 @@ static int __init atstk1002_init(void)
 #ifndef CONFIG_BOARD_ATSTK1002_SW6_CUSTOM
 	set_hw_addr(at32_add_device_eth(0, &eth_data[0]));
 #endif
-#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
+#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
 	at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
 #endif
-#ifdef CONFIG_BOARD_ATSTK1002_SPI1
+#ifdef CONFIG_BOARD_ATSTK100X_SPI1
 	at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
 #endif
 #ifdef CONFIG_BOARD_ATSTK1002_SW5_CUSTOM
@@ -294,17 +235,12 @@ static int __init atstk1002_init(void)
 			     fbmem_start, fbmem_size);
 #endif
 	at32_add_device_usba(0, NULL);
-#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
+#ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
 	at32_add_device_ssc(0, ATMEL_SSC_TX);
 #endif
 
-	setup_j2_leds();
-
-#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
-#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
-	at73c213_set_clk(&at73c213_data);
-#endif
-#endif
+	atstk1000_setup_j2_leds();
+	atstk1002_setup_extdac();
 
 	return 0;
 }

arch/avr32/boards/atstk1000/atstk1003.c

+/*
+ * ATSTK1003 daughterboard-specific init code
+ *
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * 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.
+ */
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+#include <linux/spi/at73c213.h>
+#include <linux/spi/spi.h>
+
+#include <asm/setup.h>
+
+#include <asm/arch/at32ap700x.h>
+#include <asm/arch/board.h>
+#include <asm/arch/init.h>
+#include <asm/arch/portmux.h>
+
+#include "atstk1000.h"
+
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+static struct at73c213_board_info at73c213_data = {
+	.ssc_id		= 0,
+	.shortname	= "AVR32 STK1000 external DAC",
+};
+#endif
+
+#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
+static struct spi_board_info spi0_board_info[] __initdata = {
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+	{
+		/* AT73C213 */
+		.modalias	= "at73c213",
+		.max_speed_hz	= 200000,
+		.chip_select	= 0,
+		.mode		= SPI_MODE_1,
+		.platform_data	= &at73c213_data,
+	},
+#endif
+	/*
+	 * We can control the LTV350QV LCD panel, but it isn't much
+	 * point since we don't have an LCD controller...
+	 */
+};
+#endif
+
+#ifdef CONFIG_BOARD_ATSTK100X_SPI1
+static struct spi_board_info spi1_board_info[] __initdata = { {
+	/* patch in custom entries here */
+} };
+#endif
+
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+static void __init atstk1003_setup_extdac(void)
+{
+	struct clk *gclk;
+	struct clk *pll;
+
+	gclk = clk_get(NULL, "gclk0");
+	if (IS_ERR(gclk))
+		goto err_gclk;
+	pll = clk_get(NULL, "pll0");
+	if (IS_ERR(pll))
+		goto err_pll;
+
+	if (clk_set_parent(gclk, pll)) {
+		pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n");
+		goto err_set_clk;
+	}
+
+	at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
+	at73c213_data.dac_clk = gclk;
+
+err_set_clk:
+	clk_put(pll);
+err_pll:
+	clk_put(gclk);
+err_gclk:
+	return;
+}
+#else
+static void __init atstk1003_setup_extdac(void)
+{
+
+}
+#endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
+
+void __init setup_board(void)
+{
+#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+	at32_map_usart(0, 1);	/* USART 0/B: /dev/ttyS1, IRDA */
+#else
+	at32_map_usart(1, 0);	/* USART 1/A: /dev/ttyS0, DB9 */
+#endif
+	/* USART 2/unused: expansion connector */
+	at32_map_usart(3, 2);	/* USART 3/C: /dev/ttyS2, DB9 */
+
+	at32_setup_serial_console(0);
+}
+
+static int __init atstk1003_init(void)
+{
+	/*
+	 * ATSTK1000 uses 32-bit SDRAM interface. Reserve the
+	 * SDRAM-specific pins so that nobody messes with them.
+	 */
+	at32_reserve_pin(GPIO_PIN_PE(0));	/* DATA[16]	*/
+	at32_reserve_pin(GPIO_PIN_PE(1));	/* DATA[17]	*/
+	at32_reserve_pin(GPIO_PIN_PE(2));	/* DATA[18]	*/
+	at32_reserve_pin(GPIO_PIN_PE(3));	/* DATA[19]	*/
+	at32_reserve_pin(GPIO_PIN_PE(4));	/* DATA[20]	*/
+	at32_reserve_pin(GPIO_PIN_PE(5));	/* DATA[21]	*/
+	at32_reserve_pin(GPIO_PIN_PE(6));	/* DATA[22]	*/
+	at32_reserve_pin(GPIO_PIN_PE(7));	/* DATA[23]	*/
+	at32_reserve_pin(GPIO_PIN_PE(8));	/* DATA[24]	*/
+	at32_reserve_pin(GPIO_PIN_PE(9));	/* DATA[25]	*/
+	at32_reserve_pin(GPIO_PIN_PE(10));	/* DATA[26]	*/
+	at32_reserve_pin(GPIO_PIN_PE(11));	/* DATA[27]	*/
+	at32_reserve_pin(GPIO_PIN_PE(12));	/* DATA[28]	*/
+	at32_reserve_pin(GPIO_PIN_PE(13));	/* DATA[29]	*/
+	at32_reserve_pin(GPIO_PIN_PE(14));	/* DATA[30]	*/
+	at32_reserve_pin(GPIO_PIN_PE(15));	/* DATA[31]	*/
+	at32_reserve_pin(GPIO_PIN_PE(26));	/* SDCS		*/
+
+	at32_add_system_devices();
+
+#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+	at32_add_device_usart(1);
+#else
+	at32_add_device_usart(0);
+#endif
+	at32_add_device_usart(2);
+
+#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
+	at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
+#endif
+#ifdef CONFIG_BOARD_ATSTK100X_SPI1
+	at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
+#endif
+#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+	at32_add_device_mci(0);
+#endif
+	at32_add_device_usba(0, NULL);
+#ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
+	at32_add_device_ssc(0, ATMEL_SSC_TX);
+#endif
+
+	atstk1000_setup_j2_leds();
+	atstk1003_setup_extdac();
+
+	return 0;
+}
+postcore_initcall(atstk1003_init);

arch/avr32/boards/atstk1000/atstk1004.c

+/*
+ * ATSTK1003 daughterboard-specific init code
+ *
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * 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.
+ */
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+#include <linux/spi/at73c213.h>
+#include <linux/spi/spi.h>
+
+#include <video/atmel_lcdc.h>
+
+#include <asm/setup.h>
+
+#include <asm/arch/at32ap700x.h>
+#include <asm/arch/board.h>
+#include <asm/arch/init.h>
+#include <asm/arch/portmux.h>
+
+#include "atstk1000.h"
+
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+static struct at73c213_board_info at73c213_data = {
+	.ssc_id		= 0,
+	.shortname	= "AVR32 STK1000 external DAC",
+};
+#endif
+
+#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
+static struct spi_board_info spi0_board_info[] __initdata = {
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+	{
+		/* AT73C213 */
+		.modalias	= "at73c213",
+		.max_speed_hz	= 200000,
+		.chip_select	= 0,
+		.mode		= SPI_MODE_1,
+		.platform_data	= &at73c213_data,
+	},
+#endif
+	{
+		/* QVGA display */
+		.modalias	= "ltv350qv",
+		.max_speed_hz	= 16000000,
+		.chip_select	= 1,
+		.mode		= SPI_MODE_3,
+	},
+};
+#endif
+
+#ifdef CONFIG_BOARD_ATSTK100X_SPI1
+static struct spi_board_info spi1_board_info[] __initdata = { {
+	/* patch in custom entries here */
+} };
+#endif
+
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+static void __init atstk1004_setup_extdac(void)
+{
+	struct clk *gclk;
+	struct clk *pll;
+
+	gclk = clk_get(NULL, "gclk0");
+	if (IS_ERR(gclk))
+		goto err_gclk;
+	pll = clk_get(NULL, "pll0");
+	if (IS_ERR(pll))
+		goto err_pll;
+
+	if (clk_set_parent(gclk, pll)) {
+		pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n");
+		goto err_set_clk;
+	}
+
+	at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
+	at73c213_data.dac_clk = gclk;
+
+err_set_clk:
+	clk_put(pll);
+err_pll:
+	clk_put(gclk);
+err_gclk:
+	return;
+}
+#else
+static void __init atstk1004_setup_extdac(void)
+{
+
+}
+#endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
+
+void __init setup_board(void)
+{
+#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+	at32_map_usart(0, 1);	/* USART 0/B: /dev/ttyS1, IRDA */
+#else
+	at32_map_usart(1, 0);	/* USART 1/A: /dev/ttyS0, DB9 */
+#endif
+	/* USART 2/unused: expansion connector */
+	at32_map_usart(3, 2);	/* USART 3/C: /dev/ttyS2, DB9 */
+
+	at32_setup_serial_console(0);
+}
+
+static int __init atstk1004_init(void)
+{
+	at32_add_system_devices();
+
+#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+	at32_add_device_usart(1);
+#else
+	at32_add_device_usart(0);
+#endif
+	at32_add_device_usart(2);
+
+#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
+	at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
+#endif
+#ifdef CONFIG_BOARD_ATSTK100X_SPI1
+	at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
+#endif
+#ifndef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
+	at32_add_device_mci(0);
+#endif
+	at32_add_device_lcdc(0, &atstk1000_lcdc_data,
+			     fbmem_start, fbmem_size);
+	at32_add_device_usba(0, NULL);
+#ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
+	at32_add_device_ssc(0, ATMEL_SSC_TX);
+#endif
+
+	atstk1000_setup_j2_leds();
+	atstk1004_setup_extdac();
+
+	return 0;
+}
+postcore_initcall(atstk1004_init);

arch/avr32/boards/atstk1000/setup.c

@@ -10,13 +10,17 @@
 #include <linux/bootmem.h>
 #include <linux/fb.h>
 #include <linux/init.h>
+#include <linux/platform_device.h>
 #include <linux/types.h>
 #include <linux/linkage.h>
 
 #include <video/atmel_lcdc.h>
 
 #include <asm/setup.h>
+
+#include <asm/arch/at32ap700x.h>
 #include <asm/arch/board.h>
+#include <asm/arch/portmux.h>
 
 #include "atstk1000.h"
 
@@ -61,3 +65,63 @@ struct atmel_lcdfb_info __initdata atstk1000_lcdc_data = {
 	.default_monspecs	= &atstk1000_default_monspecs,
 	.guard_time		= 2,
 };
+
+#ifdef CONFIG_BOARD_ATSTK1000_J2_LED
+#include <linux/leds.h>
+
+static struct gpio_led stk1000_j2_led[] = {
+#ifdef CONFIG_BOARD_ATSTK1000_J2_LED8
+#define LEDSTRING "J2 jumpered to LED8"
+	{ .name = "led0:amber", .gpio = GPIO_PIN_PB( 8), },
+	{ .name = "led1:amber", .gpio = GPIO_PIN_PB( 9), },
+	{ .name = "led2:amber", .gpio = GPIO_PIN_PB(10), },
+	{ .name = "led3:amber", .gpio = GPIO_PIN_PB(13), },
+	{ .name = "led4:amber", .gpio = GPIO_PIN_PB(14), },
+	{ .name = "led5:amber", .gpio = GPIO_PIN_PB(15), },
+	{ .name = "led6:amber", .gpio = GPIO_PIN_PB(16), },
+	{ .name = "led7:amber", .gpio = GPIO_PIN_PB(30),
+			.default_trigger = "heartbeat", },
+#else	/* RGB */
+#define LEDSTRING "J2 jumpered to RGB LEDs"
+	{ .name = "r1:red",     .gpio = GPIO_PIN_PB( 8), },
+	{ .name = "g1:green",   .gpio = GPIO_PIN_PB(10), },
+	{ .name = "b1:blue",    .gpio = GPIO_PIN_PB(14), },
+
+	{ .name = "r2:red",     .gpio = GPIO_PIN_PB( 9),
+			.default_trigger = "heartbeat", },
+	{ .name = "g2:green",   .gpio = GPIO_PIN_PB(13), },
+	{ .name = "b2:blue",    .gpio = GPIO_PIN_PB(15),
+			.default_trigger = "heartbeat", },
+	/* PB16, PB30 unused */
+#endif
+};
+
+static struct gpio_led_platform_data stk1000_j2_led_data = {
+	.num_leds	= ARRAY_SIZE(stk1000_j2_led),
+	.leds		= stk1000_j2_led,
+};
+
+static struct platform_device stk1000_j2_led_dev = {
+	.name		= "leds-gpio",
+	.id		= 2,	/* gpio block J2 */
+	.dev		= {
+		.platform_data	= &stk1000_j2_led_data,
+	},
+};
+
+void __init atstk1000_setup_j2_leds(void)
+{
+	unsigned	i;
+
+	for (i = 0; i < ARRAY_SIZE(stk1000_j2_led); i++)
+		at32_select_gpio(stk1000_j2_led[i].gpio, AT32_GPIOF_OUTPUT);
+
+	printk("STK1000: " LEDSTRING "\n");
+	platform_device_register(&stk1000_j2_led_dev);
+}
+#else /* CONFIG_BOARD_ATSTK1000_J2_LED */
+void __init atstk1000_setup_j2_leds(void)
+{
+
+}
+#endif /* CONFIG_BOARD_ATSTK1000_J2_LED */

arch/avr32/kernel/Makefile

@@ -6,9 +6,10 @@ extra-y				:= head.o vmlinux.lds
 
 obj-$(CONFIG_SUBARCH_AVR32B)	+= entry-avr32b.o
 obj-y				+= syscall_table.o syscall-stubs.o irq.o
-obj-y				+= setup.o traps.o semaphore.o ptrace.o
+obj-y				+= setup.o traps.o semaphore.o ocd.o ptrace.o
 obj-y				+= signal.o sys_avr32.o process.o time.o
 obj-y				+= init_task.o switch_to.o cpu.o
 obj-$(CONFIG_MODULES)		+= module.o avr32_ksyms.o
 obj-$(CONFIG_KPROBES)		+= kprobes.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
+obj-$(CONFIG_NMI_DEBUGGING)	+= nmi_debug.o

arch/avr32/kernel/cpu.c

@@ -13,6 +13,7 @@
 #include <linux/percpu.h>
 #include <linux/param.h>
 #include <linux/errno.h>
+#include <linux/clk.h>
 
 #include <asm/setup.h>
 #include <asm/sysreg.h>
@@ -187,9 +188,20 @@ static int __init topology_init(void)
 
 subsys_initcall(topology_init);
 
+struct chip_id_map {
+	u16	mid;
+	u16	pn;
+	const char *name;
+};
+
+static const struct chip_id_map chip_names[] = {
+	{ .mid = 0x1f, .pn = 0x1e82, .name = "AT32AP700x" },
+};
+#define NR_CHIP_NAMES ARRAY_SIZE(chip_names)
+
 static const char *cpu_names[] = {
 	"Morgan",
-	"AP7000",
+	"AP7",
 };
 #define NR_CPU_NAMES ARRAY_SIZE(cpu_names)
 
@@ -206,12 +218,32 @@ static const char *mmu_types[] = {
 	"MPU"
 };
 
+static const char *cpu_feature_flags[] = {
+	"rmw", "dsp", "simd", "ocd", "perfctr", "java", "fpu",
+};
+
+static const char *get_chip_name(struct avr32_cpuinfo *cpu)
+{
+	unsigned int i;
+	unsigned int mid = avr32_get_manufacturer_id(cpu);
+	unsigned int pn = avr32_get_product_number(cpu);
+
+	for (i = 0; i < NR_CHIP_NAMES; i++) {
+		if (chip_names[i].mid == mid && chip_names[i].pn == pn)
+			return chip_names[i].name;
+	}
+
+	return "(unknown)";
+}
+
 void __init setup_processor(void)
 {
 	unsigned long config0, config1;
 	unsigned long features;
 	unsigned cpu_id, cpu_rev, arch_id, arch_rev, mmu_type;
+	unsigned device_id;
 	unsigned tmp;
+	unsigned i;
 
 	config0 = sysreg_read(CONFIG0);
 	config1 = sysreg_read(CONFIG1);
@@ -221,11 +253,14 @@ void __init setup_processor(void)
 	arch_rev = SYSREG_BFEXT(AR, config0);
 	mmu_type = SYSREG_BFEXT(MMUT, config0);
 
+	device_id = ocd_read(DID);
+
 	boot_cpu_data.arch_type = arch_id;
 	boot_cpu_data.cpu_type = cpu_id;
 	boot_cpu_data.arch_revision = arch_rev;
 	boot_cpu_data.cpu_revision = cpu_rev;
 	boot_cpu_data.tlb_config = mmu_type;
+	boot_cpu_data.device_id = device_id;
 
 	tmp = SYSREG_BFEXT(ILSZ, config1);
 	if (tmp) {
@@ -247,41 +282,34 @@ void __init setup_processor(void)
 		return;
 	}
 
-	printk ("CPU: %s [%02x] revision %d (%s revision %d)\n",
+	printk ("CPU: %s chip revision %c\n", get_chip_name(&boot_cpu_data),
+			avr32_get_chip_revision(&boot_cpu_data) + 'A');
+	printk ("CPU: %s [%02x] core revision %d (%s arch revision %d)\n",
 		cpu_names[cpu_id], cpu_id, cpu_rev,
 		arch_names[arch_id], arch_rev);
 	printk ("CPU: MMU configuration: %s\n", mmu_types[mmu_type]);
 
 	printk ("CPU: features:");
 	features = 0;
-	if (config0 & SYSREG_BIT(CONFIG0_R)) {
+	if (config0 & SYSREG_BIT(CONFIG0_R))
 		features |= AVR32_FEATURE_RMW;
-		printk(" rmw");
-	}
-	if (config0 & SYSREG_BIT(CONFIG0_D)) {
+	if (config0 & SYSREG_BIT(CONFIG0_D))
 		features |= AVR32_FEATURE_DSP;
-		printk(" dsp");
-	}
-	if (config0 & SYSREG_BIT(CONFIG0_S)) {
+	if (config0 & SYSREG_BIT(CONFIG0_S))
 		features |= AVR32_FEATURE_SIMD;
-		printk(" simd");
-	}
-	if (config0 & SYSREG_BIT(CONFIG0_O)) {
+	if (config0 & SYSREG_BIT(CONFIG0_O))
 		features |= AVR32_FEATURE_OCD;
-		printk(" ocd");
-	}
-	if (config0 & SYSREG_BIT(CONFIG0_P)) {
+	if (config0 & SYSREG_BIT(CONFIG0_P))
 		features |= AVR32_FEATURE_PCTR;
-		printk(" perfctr");
-	}
-	if (config0 & SYSREG_BIT(CONFIG0_J)) {
+	if (config0 & SYSREG_BIT(CONFIG0_J))
 		features |= AVR32_FEATURE_JAVA;
-		printk(" java");
-	}
-	if (config0 & SYSREG_BIT(CONFIG0_F)) {
+	if (config0 & SYSREG_BIT(CONFIG0_F))
 		features |= AVR32_FEATURE_FPU;
-		printk(" fpu");
-	}
+
+	for (i = 0; i < ARRAY_SIZE(cpu_feature_flags); i++)
+		if (features & (1 << i))
+			printk(" %s", cpu_feature_flags[i]);
+
 	printk("\n");
 	boot_cpu_data.features = features;
 }
@@ -291,6 +319,8 @@ static int c_show(struct seq_file *m, void *v)
 {
 	unsigned int icache_size, dcache_size;
 	unsigned int cpu = smp_processor_id();
+	unsigned int freq;
+	unsigned int i;
 
 	icache_size = boot_cpu_data.icache.ways *
 		boot_cpu_data.icache.sets *
@@ -301,15 +331,21 @@ static int c_show(struct seq_file *m, void *v)
 
 	seq_printf(m, "processor\t: %d\n", cpu);
 
+	seq_printf(m, "chip type\t: %s revision %c\n",
+			get_chip_name(&boot_cpu_data),
+			avr32_get_chip_revision(&boot_cpu_data) + 'A');
 	if (boot_cpu_data.arch_type < NR_ARCH_NAMES)
-		seq_printf(m, "cpu family\t: %s revision %d\n",
+		seq_printf(m, "cpu arch\t: %s revision %d\n",
 			   arch_names[boot_cpu_data.arch_type],
 			   boot_cpu_data.arch_revision);
 	if (boot_cpu_data.cpu_type < NR_CPU_NAMES)
-		seq_printf(m, "cpu type\t: %s revision %d\n",
+		seq_printf(m, "cpu core\t: %s revision %d\n",
 			   cpu_names[boot_cpu_data.cpu_type],
 			   boot_cpu_data.cpu_revision);
 
+	freq = (clk_get_rate(boot_cpu_data.clk) + 500) / 1000;
+	seq_printf(m, "cpu MHz\t\t: %u.%03u\n", freq / 1000, freq % 1000);
+
 	seq_printf(m, "i-cache\t\t: %dK (%u ways x %u sets x %u)\n",
 		   icache_size >> 10,
 		   boot_cpu_data.icache.ways,
@@ -320,7 +356,13 @@ static int c_show(struct seq_file *m, void *v)
 		   boot_cpu_data.dcache.ways,
 		   boot_cpu_data.dcache.sets,
 		   boot_cpu_data.dcache.linesz);
-	seq_printf(m, "bogomips\t: %lu.%02lu\n",
+
+	seq_printf(m, "features\t:");
+	for (i = 0; i < ARRAY_SIZE(cpu_feature_flags); i++)
+		if (boot_cpu_data.features & (1 << i))
+			seq_printf(m, " %s", cpu_feature_flags[i]);
+
+	seq_printf(m, "\nbogomips\t: %lu.%02lu\n",
 		   boot_cpu_data.loops_per_jiffy / (500000/HZ),
 		   (boot_cpu_data.loops_per_jiffy / (5000/HZ)) % 100);
 
@@ -343,7 +385,7 @@ static void c_stop(struct seq_file *m, void *v)
 
 }
 
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
 	.start	= c_start,
 	.next	= c_next,
 	.stop	= c_stop,

arch/avr32/kernel/irq.c

@@ -25,6 +25,17 @@ void ack_bad_irq(unsigned int irq)
 	printk("unexpected IRQ %u\n", irq);
 }
 
+/* May be overridden by platform code */
+int __weak nmi_enable(void)
+{
+	return -ENOSYS;
+}
+
+void __weak nmi_disable(void)
+{
+
+}
+
 #ifdef CONFIG_PROC_FS
 int show_interrupts(struct seq_file *p, void *v)
 {

arch/avr32/kernel/kprobes.c

@@ -48,6 +48,7 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
 void __kprobes arch_arm_kprobe(struct kprobe *p)
 {
 	pr_debug("arming kprobe at %p\n", p->addr);
+	ocd_enable(NULL);
 	*p->addr = BREAKPOINT_INSTRUCTION;
 	flush_icache_range((unsigned long)p->addr,
 			   (unsigned long)p->addr + sizeof(kprobe_opcode_t));
@@ -56,6 +57,7 @@ void __kprobes arch_arm_kprobe(struct kprobe *p)
 void __kprobes arch_disarm_kprobe(struct kprobe *p)
 {
 	pr_debug("disarming kprobe at %p\n", p->addr);
+	ocd_disable(NULL);
 	*p->addr = p->opcode;
 	flush_icache_range((unsigned long)p->addr,
 			   (unsigned long)p->addr + sizeof(kprobe_opcode_t));
@@ -260,9 +262,6 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 
 int __init arch_init_kprobes(void)
 {
-	printk("KPROBES: Enabling monitor mode (MM|DBE)...\n");
-	ocd_write(DC, (1 << OCD_DC_MM_BIT) | (1 << OCD_DC_DBE_BIT));
-
 	/* TODO: Register kretprobe trampoline */
 	return 0;
 }

arch/avr32/kernel/nmi_debug.c

+/*
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * 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.
+ */
+#include <linux/delay.h>
+#include <linux/kdebug.h>
+#include <linux/notifier.h>
+#include <linux/sched.h>
+
+#include <asm/irq.h>
+
+enum nmi_action {
+	NMI_SHOW_STATE	= 1 << 0,
+	NMI_SHOW_REGS	= 1 << 1,
+	NMI_DIE		= 1 << 2,
+	NMI_DEBOUNCE	= 1 << 3,
+};
+
+static unsigned long nmi_actions;
+
+static int nmi_debug_notify(struct notifier_block *self,
+		unsigned long val, void *data)
+{
+	struct die_args *args = data;
+
+	if (likely(val != DIE_NMI))
+		return NOTIFY_DONE;
+
+	if (nmi_actions & NMI_SHOW_STATE)
+		show_state();
+	if (nmi_actions & NMI_SHOW_REGS)
+		show_regs(args->regs);
+	if (nmi_actions & NMI_DEBOUNCE)
+		mdelay(10);
+	if (nmi_actions & NMI_DIE)
+		return NOTIFY_BAD;
+
+	return NOTIFY_OK;
+}
+
+static struct notifier_block nmi_debug_nb = {
+	.notifier_call = nmi_debug_notify,
+};
+
+static int __init nmi_debug_setup(char *str)
+{
+	char *p, *sep;
+
+	register_die_notifier(&nmi_debug_nb);
+	if (nmi_enable()) {
+		printk(KERN_WARNING "Unable to enable NMI.\n");
+		return 0;
+	}
+
+	if (*str != '=')
+		return 0;
+
+	for (p = str + 1; *p; p = sep + 1) {
+		sep = strchr(p, ',');
+		if (sep)
+			*sep = 0;
+		if (strcmp(p, "state") == 0)
+			nmi_actions |= NMI_SHOW_STATE;
+		else if (strcmp(p, "regs") == 0)
+			nmi_actions |= NMI_SHOW_REGS;
+		else if (strcmp(p, "debounce") == 0)
+			nmi_actions |= NMI_DEBOUNCE;
+		else if (strcmp(p, "die") == 0)
+			nmi_actions |= NMI_DIE;
+		else
+			printk(KERN_WARNING "NMI: Unrecognized action `%s'\n",
+				p);
+		if (!sep)
+			break;
+	}
+
+	return 0;
+}
+__setup("nmi_debug", nmi_debug_setup);

arch/avr32/kernel/ocd.c

+/*
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * 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.
+ */
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+
+#include <asm/ocd.h>
+
+static long ocd_count;
+static spinlock_t ocd_lock;
+
+/**
+ * ocd_enable - enable on-chip debugging
+ * @child: task to be debugged
+ *
+ * If @child is non-NULL, ocd_enable() first checks if debugging has
+ * already been enabled for @child, and if it has, does nothing.
+ *
+ * If @child is NULL (e.g. when debugging the kernel), or debugging
+ * has not already been enabled for it, ocd_enable() increments the
+ * reference count and enables the debugging hardware.
+ */
+void ocd_enable(struct task_struct *child)
+{
+	u32 dc;
+
+	if (child)
+		pr_debug("ocd_enable: child=%s [%u]\n",
+				child->comm, child->pid);
+	else
+		pr_debug("ocd_enable (no child)\n");
+
+	if (!child || !test_and_set_tsk_thread_flag(child, TIF_DEBUG)) {
+		spin_lock(&ocd_lock);
+		ocd_count++;
+		dc = ocd_read(DC);
+		dc |= (1 << OCD_DC_MM_BIT) | (1 << OCD_DC_DBE_BIT);
+		ocd_write(DC, dc);
+		spin_unlock(&ocd_lock);
+	}
+}
+
+/**
+ * ocd_disable - disable on-chip debugging
+ * @child: task that was being debugged, but isn't anymore
+ *
+ * If @child is non-NULL, ocd_disable() checks if debugging is enabled
+ * for @child, and if it isn't, does nothing.
+ *
+ * If @child is NULL (e.g. when debugging the kernel), or debugging is
+ * enabled, ocd_disable() decrements the reference count, and if it
+ * reaches zero, disables the debugging hardware.
+ */
+void ocd_disable(struct task_struct *child)
+{
+	u32 dc;
+
+	if (!child)
+		pr_debug("ocd_disable (no child)\n");
+	else if (test_tsk_thread_flag(child, TIF_DEBUG))
+		pr_debug("ocd_disable: child=%s [%u]\n",
+				child->comm, child->pid);
+
+	if (!child || test_and_clear_tsk_thread_flag(child, TIF_DEBUG)) {
+		spin_lock(&ocd_lock);
+		ocd_count--;
+
+		WARN_ON(ocd_count < 0);
+
+		if (ocd_count <= 0) {
+			dc = ocd_read(DC);
+			dc &= ~((1 << OCD_DC_MM_BIT) | (1 << OCD_DC_DBE_BIT));
+			ocd_write(DC, dc);
+		}
+		spin_unlock(&ocd_lock);
+	}
+}
+
+#ifdef CONFIG_DEBUG_FS
+#include <linux/debugfs.h>
+#include <linux/module.h>
+
+static struct dentry *ocd_debugfs_root;
+static struct dentry *ocd_debugfs_DC;
+static struct dentry *ocd_debugfs_DS;
+static struct dentry *ocd_debugfs_count;
+
+static u64 ocd_DC_get(void *data)
+{
+	return ocd_read(DC);
+}
+static void ocd_DC_set(void *data, u64 val)
+{
+	ocd_write(DC, val);
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_DC, ocd_DC_get, ocd_DC_set, "0x%08llx\n");
+
+static u64 ocd_DS_get(void *data)
+{
+	return ocd_read(DS);
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_DS, ocd_DS_get, NULL, "0x%08llx\n");
+
+static u64 ocd_count_get(void *data)
+{
+	return ocd_count;
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_count, ocd_count_get, NULL, "%lld\n");
+
+static void ocd_debugfs_init(void)
+{
+	struct dentry *root;
+
+	root = debugfs_create_dir("ocd", NULL);
+	if (IS_ERR(root) || !root)
+		goto err_root;
+	ocd_debugfs_root = root;
+
+	ocd_debugfs_DC = debugfs_create_file("DC", S_IRUSR | S_IWUSR,
+				root, NULL, &fops_DC);
+	if (!ocd_debugfs_DC)
+		goto err_DC;
+
+	ocd_debugfs_DS = debugfs_create_file("DS", S_IRUSR, root,
+				NULL, &fops_DS);
+	if (!ocd_debugfs_DS)
+		goto err_DS;
+
+	ocd_debugfs_count = debugfs_create_file("count", S_IRUSR, root,
+				NULL, &fops_count);
+	if (!ocd_debugfs_count)
+		goto err_count;
+
+	return;
+
+err_count:
+	debugfs_remove(ocd_debugfs_DS);
+err_DS:
+	debugfs_remove(ocd_debugfs_DC);
+err_DC:
+	debugfs_remove(ocd_debugfs_root);
+err_root:
+	printk(KERN_WARNING "OCD: Failed to create debugfs entries\n");
+}
+#else
+static inline void ocd_debugfs_init(void)
+{
+
+}
+#endif
+
+static int __init ocd_init(void)
+{
+	spin_lock_init(&ocd_lock);
+	ocd_debugfs_init();
+	return 0;
+}
+arch_initcall(ocd_init);

arch/avr32/kernel/process.c

@@ -103,7 +103,7 @@ EXPORT_SYMBOL(kernel_thread);
  */
 void exit_thread(void)
 {
-	/* nothing to do */
+	ocd_disable(current);
 }
 
 void flush_thread(void)
@@ -345,6 +345,9 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 	p->thread.cpu_context.ksp = (unsigned long)childregs;
 	p->thread.cpu_context.pc = (unsigned long)ret_from_fork;
 
+	if ((clone_flags & CLONE_PTRACE) && test_thread_flag(TIF_DEBUG))
+		ocd_enable(p);
+
 	return 0;
 }
 

arch/avr32/kernel/ptrace.c

@@ -58,6 +58,7 @@ void ptrace_disable(struct task_struct *child)
 {
 	clear_tsk_thread_flag(child, TIF_SINGLE_STEP);
 	clear_tsk_thread_flag(child, TIF_BREAKPOINT);
+	ocd_disable(child);
 }
 
 /*
@@ -144,10 +145,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 {
 	int ret;
 
-	pr_debug("ptrace: Enabling monitor mode...\n");
-	ocd_write(DC, ocd_read(DC) | (1 << OCD_DC_MM_BIT)
-			| (1 << OCD_DC_DBE_BIT));
-
 	switch (request) {
 	/* Read the word at location addr in the child process */
 	case PTRACE_PEEKTEXT:

arch/avr32/kernel/signal.c

@@ -270,19 +270,12 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset, int syscall)
 	if (!user_mode(regs))
 		return 0;
 
-	if (try_to_freeze()) {
-		signr = 0;
-		if (!signal_pending(current))
-			goto no_signal;
-	}
-
 	if (test_thread_flag(TIF_RESTORE_SIGMASK))
 		oldset = &current->saved_sigmask;
 	else if (!oldset)
 		oldset = &current->blocked;
 
 	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-no_signal:
 	if (syscall) {
 		switch (regs->r12) {
 		case -ERESTART_RESTARTBLOCK:

arch/avr32/kernel/traps.c

@@ -9,6 +9,7 @@
 #include <linux/bug.h>
 #include <linux/init.h>
 #include <linux/kallsyms.h>
+#include <linux/kdebug.h>
 #include <linux/module.h>
 #include <linux/notifier.h>
 #include <linux/sched.h>
@@ -107,9 +108,23 @@ void _exception(long signr, struct pt_regs *regs, int code,
 
 asmlinkage void do_nmi(unsigned long ecr, struct pt_regs *regs)
 {
-	printk(KERN_ALERT "Got Non-Maskable Interrupt, dumping regs\n");
-	show_regs_log_lvl(regs, KERN_ALERT);
-	show_stack_log_lvl(current, regs->sp, regs, KERN_ALERT);
+	int ret;
+
+	nmi_enter();
+
+	ret = notify_die(DIE_NMI, "NMI", regs, 0, ecr, SIGINT);
+	switch (ret) {
+	case NOTIFY_OK:
+	case NOTIFY_STOP:
+		return;
+	case NOTIFY_BAD:
+		die("Fatal Non-Maskable Interrupt", regs, SIGINT);
+	default:
+		break;
+	}
+
+	printk(KERN_ALERT "Got NMI, but nobody cared. Disabling...\n");
+	nmi_disable();
 }
 
 asmlinkage void do_critical_exception(unsigned long ecr, struct pt_regs *regs)

arch/avr32/mach-at32ap/Kconfig

@@ -3,9 +3,9 @@ if PLATFORM_AT32AP
 menu "Atmel AVR32 AP options"
 
 choice
-	prompt "AT32AP7000 static memory bus width"
-	depends on CPU_AT32AP7000
-	default AP7000_16_BIT_SMC
+	prompt "AT32AP700x static memory bus width"
+	depends on CPU_AT32AP700X
+	default AP700X_16_BIT_SMC
 	help
 	  Define the width of the AP7000 external static memory interface.
 	  This is used to determine how to mangle the address and/or data
@@ -15,13 +15,13 @@ choice
 	  width for all chip selects, excluding the flash (which is using
 	  raw access and is thus not affected by any of this.)
 
-config AP7000_32_BIT_SMC
+config AP700X_32_BIT_SMC
 	bool "32 bit"
 
-config AP7000_16_BIT_SMC
+config AP700X_16_BIT_SMC
 	bool "16 bit"
 
-config AP7000_8_BIT_SMC
+config AP700X_8_BIT_SMC
 	bool "8 bit"
 
 endchoice

arch/avr32/mach-at32ap/Makefile

 obj-y				+= at32ap.o clock.o intc.o extint.o pio.o hsmc.o
-obj-$(CONFIG_CPU_AT32AP7000)	+= at32ap7000.o
-obj-$(CONFIG_CPU_AT32AP7000)	+= time-tc.o
+obj-$(CONFIG_CPU_AT32AP700X)	+= at32ap700x.o
+obj-$(CONFIG_CPU_AT32AP700X)	+= time-tc.o
 obj-$(CONFIG_CPU_FREQ_AT32AP)	+= cpufreq.o

arch/avr32/mm/dma-coherent.c

@@ -41,6 +41,13 @@ static struct page *__dma_alloc(struct device *dev, size_t size,
 	struct page *page, *free, *end;
 	int order;
 
+	/* Following is a work-around (a.k.a. hack) to prevent pages
+	 * with __GFP_COMP being passed to split_page() which cannot
+	 * handle them.  The real problem is that this flag probably
+	 * should be 0 on AVR32 as it is not supported on this
+	 * platform--see CONFIG_HUGETLB_PAGE. */
+	gfp &= ~(__GFP_COMP);
+
 	size = PAGE_ALIGN(size);
 	order = get_order(size);
 

arch/avr32/mm/tlb.c

@@ -348,7 +348,7 @@ static int tlb_show(struct seq_file *tlb, void *v)
 	return 0;
 }
 
-static struct seq_operations tlb_ops = {
+static const struct seq_operations tlb_ops = {
 	.start		= tlb_start,
 	.next		= tlb_next,
 	.stop		= tlb_stop,

arch/avr32/oprofile/Makefile

+obj-$(CONFIG_OPROFILE) += oprofile.o
+
+oprofile-y		:= $(addprefix ../../../drivers/oprofile/,	\
+				oprof.o cpu_buffer.o buffer_sync.o	\
+				event_buffer.o oprofile_files.o		\
+				oprofilefs.o oprofile_stats.o		\
+				timer_int.o)
+oprofile-y		+= op_model_avr32.o

drivers/video/console/Kconfig

@@ -6,7 +6,7 @@ menu "Console display driver support"
 
 config VGA_CONSOLE
 	bool "VGA text console" if EMBEDDED || !X86
-	depends on !ARCH_ACORN && !ARCH_EBSA110 && !4xx && !8xx && !SPARC && !M68K && !PARISC && !FRV && !ARCH_VERSATILE && !SUPERH && !BLACKFIN
+	depends on !ARCH_ACORN && !ARCH_EBSA110 && !4xx && !8xx && !SPARC && !M68K && !PARISC && !FRV && !ARCH_VERSATILE && !SUPERH && !BLACKFIN && !AVR32
 	default y
 	help
 	  Saying Y here will allow you to use Linux in text mode through a

drivers/watchdog/Kconfig

@@ -223,7 +223,7 @@ config DAVINCI_WATCHDOG
 
 config AT32AP700X_WDT
 	tristate "AT32AP700x watchdog"
-	depends on CPU_AT32AP7000
+	depends on CPU_AT32AP700X
 	help
 	  Watchdog timer embedded into AT32AP700x devices. This will reboot
 	  your system when the timeout is reached.