Merge branch 'devel-stable' into devel

Conflicts:
	MAINTAINERS
	arch/arm/mm/fault.c

CREDITS

@@ -1856,7 +1856,7 @@ E: rfkoenig@immd4.informatik.uni-erlangen.de
 D: The Linux Support Team Erlangen
 
 N: Andreas Koensgen
-E: ajk@iehk.rwth-aachen.de
+E: ajk@comnets.uni-bremen.de
 D: 6pack driver for AX.25
 
 N: Harald Koerfgen
@@ -2006,6 +2006,9 @@ E: paul@laufernet.com
 D: Soundblaster driver fixes, ISAPnP quirk
 S: California, USA
 
+N: Jonathan Layes
+D: ARPD support
+
 N: Tom Lees
 E: tom@lpsg.demon.co.uk
 W: http://www.lpsg.demon.co.uk/
@@ -3802,6 +3805,9 @@ S: van Bronckhorststraat 12
 S: 2612 XV Delft
 S: The Netherlands
 
+N: Thomas Woller
+D: CS461x Cirrus Logic sound driver
+
 N: David Woodhouse
 E: dwmw2@infradead.org
 D: JFFS2 file system, Memory Technology Device subsystem,

Documentation/RCU/rculist_nulls.txt

@@ -83,11 +83,12 @@ not detect it missed following items in original chain.
 obj = kmem_cache_alloc(...);
 lock_chain(); // typically a spin_lock()
 obj->key = key;
-atomic_inc(&obj->refcnt);
 /*
  * we need to make sure obj->key is updated before obj->next
+ * or obj->refcnt
  */
 smp_wmb();
+atomic_set(&obj->refcnt, 1);
 hlist_add_head_rcu(&obj->obj_node, list);
 unlock_chain(); // typically a spin_unlock()
 
@@ -159,6 +160,10 @@ out:
 obj = kmem_cache_alloc(cachep);
 lock_chain(); // typically a spin_lock()
 obj->key = key;
+/*
+ * changes to obj->key must be visible before refcnt one
+ */
+smp_wmb();
 atomic_set(&obj->refcnt, 1);
 /*
  * insert obj in RCU way (readers might be traversing chain)

Documentation/arm/Samsung-S3C24XX/CPUfreq.txt

+		S3C24XX CPUfreq support
+		=======================
+
+Introduction
+------------
+
+ The S3C24XX series support a number of power saving systems, such as
+ the ability to change the core, memory and peripheral operating
+ frequencies. The core control is exported via the CPUFreq driver
+ which has a number of different manual or automatic controls over the
+ rate the core is running at.
+
+ There are two forms of the driver depending on the specific CPU and
+ how the clocks are arranged. The first implementation used as single
+ PLL to feed the ARM, memory and peripherals via a series of dividers
+ and muxes and this is the implementation that is documented here. A
+ newer version where there is a seperate PLL and clock divider for the
+ ARM core is available as a seperate driver.
+
+
+Layout
+------
+
+ The code core manages the CPU specific drivers, any data that they
+ need to register and the interface to the generic drivers/cpufreq
+ system. Each CPU registers a driver to control the PLL, clock dividers
+ and anything else associated with it. Any board that wants to use this
+ framework needs to supply at least basic details of what is required.
+
+ The core registers with drivers/cpufreq at init time if all the data
+ necessary has been supplied.
+
+
+CPU support
+-----------
+
+ The support for each CPU depends on the facilities provided by the
+ SoC and the driver as each device has different PLL and clock chains
+ associated with it.
+
+
+Slow Mode
+---------
+
+ The SLOW mode where the PLL is turned off altogether and the
+ system is fed by the external crystal input is currently not
+ supported.
+
+
+sysfs
+-----
+
+ The core code exports extra information via sysfs in the directory
+ devices/system/cpu/cpu0/arch-freq.
+
+
+Board Support
+-------------
+
+ Each board that wants to use the cpufreq code must register some basic
+ information with the core driver to provide information about what the
+ board requires and any restrictions being placed on it.
+
+ The board needs to supply information about whether it needs the IO bank
+ timings changing, any maximum frequency limits and information about the
+ SDRAM refresh rate.
+
+
+
+
+Document Author
+---------------
+
+Ben Dooks, Copyright 2009 Simtec Electronics
+Licensed under GPLv2

Documentation/connector/cn_test.c

 /*
  * 	cn_test.c
  * 
- * 2004-2005 Copyright (c) Evgeniy Polyakov <johnpol@2ka.mipt.ru>
+ * 2004+ Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>
  * All rights reserved.
  * 
  * This program is free software; you can redistribute it and/or modify
@@ -194,5 +194,5 @@ module_init(cn_test_init);
 module_exit(cn_test_fini);
 
 MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>");
+MODULE_AUTHOR("Evgeniy Polyakov <zbr@ioremap.net>");
 MODULE_DESCRIPTION("Connector's test module");

Documentation/connector/ucon.c

 /*
  * 	ucon.c
  *
- * Copyright (c) 2004+ Evgeniy Polyakov <johnpol@2ka.mipt.ru>
+ * Copyright (c) 2004+ Evgeniy Polyakov <zbr@ioremap.net>
  *
  *
  * This program is free software; you can redistribute it and/or modify

Documentation/driver-model/driver.txt

@@ -207,8 +207,8 @@ Attributes
 ~~~~~~~~~~
 struct driver_attribute {
         struct attribute        attr;
-        ssize_t (*show)(struct device_driver *, char * buf, size_t count, loff_t off);
-        ssize_t (*store)(struct device_driver *, const char * buf, size_t count, loff_t off);
+        ssize_t (*show)(struct device_driver *driver, char *buf);
+        ssize_t (*store)(struct device_driver *, const char * buf, size_t count);
 };
 
 Device drivers can export attributes via their sysfs directories. 

Documentation/filesystems/sysfs.txt

@@ -23,7 +23,8 @@ interface.
 Using sysfs
 ~~~~~~~~~~~
 
-sysfs is always compiled in. You can access it by doing:
+sysfs is always compiled in if CONFIG_SYSFS is defined. You can access
+it by doing:
 
     mount -t sysfs sysfs /sys 
 

Documentation/networking/6pack.txt

 This is the 6pack-mini-HOWTO, written by
 
 Andreas Könsgen DG3KQ
-Internet: ajk@iehk.rwth-aachen.de
+Internet: ajk@comnets.uni-bremen.de
 AMPR-net: dg3kq@db0pra.ampr.org
 AX.25:    dg3kq@db0ach.#nrw.deu.eu
 

Documentation/scheduler/sched-rt-group.txt

@@ -73,7 +73,7 @@ The remaining CPU time will be used for user input and other tasks. Because
 realtime tasks have explicitly allocated the CPU time they need to perform
 their tasks, buffer underruns in the graphics or audio can be eliminated.
 
-NOTE: the above example is not fully implemented as of yet (2.6.25). We still
+NOTE: the above example is not fully implemented yet. We still
 lack an EDF scheduler to make non-uniform periods usable.
 
 
@@ -140,14 +140,15 @@ The other option is:
 
 .o CONFIG_CGROUP_SCHED (aka "Basis for grouping tasks" = "Control groups")
 
-This uses the /cgroup virtual file system and "/cgroup/<cgroup>/cpu.rt_runtime_us"
-to control the CPU time reserved for each control group instead.
+This uses the /cgroup virtual file system and
+"/cgroup/<cgroup>/cpu.rt_runtime_us" to control the CPU time reserved for each
+control group instead.
 
 For more information on working with control groups, you should read
 Documentation/cgroups/cgroups.txt as well.
 
-Group settings are checked against the following limits in order to keep the configuration
-schedulable:
+Group settings are checked against the following limits in order to keep the
+configuration schedulable:
 
    \Sum_{i} runtime_{i} / global_period <= global_runtime / global_period
 
@@ -189,7 +190,7 @@ Implementing SCHED_EDF might take a while to complete. Priority Inheritance is
 the biggest challenge as the current linux PI infrastructure is geared towards
 the limited static priority levels 0-99. With deadline scheduling you need to
 do deadline inheritance (since priority is inversely proportional to the
-deadline delta (deadline - now).
+deadline delta (deadline - now)).
 
 This means the whole PI machinery will have to be reworked - and that is one of
 the most complex pieces of code we have.

Documentation/sound/alsa/Procfile.txt

@@ -101,6 +101,8 @@ card*/pcm*/xrun_debug
 	  bit 0 = Enable XRUN/jiffies debug messages
 	  bit 1 = Show stack trace at XRUN / jiffies check
 	  bit 2 = Enable additional jiffies check
+	  bit 3 = Log hwptr update at each period interrupt
+	  bit 4 = Log hwptr update at each snd_pcm_update_hw_ptr()
 
 	When the bit 0 is set, the driver will show the messages to
 	kernel log when an xrun is detected.  The debug message is
@@ -117,6 +119,9 @@ card*/pcm*/xrun_debug
 	buggy) hardware that doesn't give smooth pointer updates.
 	This feature is enabled via the bit 2.
 
+	Bits 3 and 4 are for logging the hwptr records.  Note that
+	these will give flood of kernel messages.
+
 card*/pcm*/sub*/info
 	The general information of this PCM sub-stream.
 

Documentation/sysrq.txt

@@ -66,7 +66,8 @@ On all -  write a character to /proc/sysrq-trigger.  e.g.:
 'b'     - Will immediately reboot the system without syncing or unmounting
           your disks.
 
-'c'	- Will perform a kexec reboot in order to take a crashdump.
+'c'	- Will perform a system crash by a NULL pointer dereference.
+          A crashdump will be taken if configured.
 
 'd'	- Shows all locks that are held.
 
@@ -141,8 +142,8 @@ useful when you want to exit a program that will not let you switch consoles.
 re'B'oot is good when you're unable to shut down. But you should also 'S'ync
 and 'U'mount first.
 
-'C'rashdump can be used to manually trigger a crashdump when the system is hung.
-The kernel needs to have been built with CONFIG_KEXEC enabled.
+'C'rash can be used to manually trigger a crashdump when the system is hung.
+Note that this just triggers a crash if there is no dump mechanism available.
 
 'S'ync is great when your system is locked up, it allows you to sync your
 disks and will certainly lessen the chance of data loss and fscking. Note

Documentation/video4linux/CARDLIST.em28xx

@@ -20,7 +20,7 @@
  19 -> EM2860/SAA711X Reference Design          (em2860)
  20 -> AMD ATI TV Wonder HD 600                 (em2880)        [0438:b002]
  21 -> eMPIA Technology, Inc. GrabBeeX+ Video Encoder (em2800)        [eb1a:2801]
- 22 -> Unknown EM2750/EM2751 webcam grabber     (em2750)        [eb1a:2750,eb1a:2751]
+ 22 -> EM2710/EM2750/EM2751 webcam grabber      (em2750)        [eb1a:2750,eb1a:2751]
  23 -> Huaqi DLCW-130                           (em2750)
  24 -> D-Link DUB-T210 TV Tuner                 (em2820/em2840) [2001:f112]
  25 -> Gadmei UTV310                            (em2820/em2840)

Documentation/video4linux/gspca.txt

@@ -44,7 +44,9 @@ zc3xx		0458:7007	Genius VideoCam V2
 zc3xx		0458:700c	Genius VideoCam V3
 zc3xx		0458:700f	Genius VideoCam Web V2
 sonixj		0458:7025	Genius Eye 311Q
+sn9c20x		0458:7029	Genius Look 320s
 sonixj		0458:702e	Genius Slim 310 NB
+sn9c20x		045e:00f4	LifeCam VX-6000 (SN9C20x + OV9650)
 sonixj		045e:00f5	MicroSoft VX3000
 sonixj		045e:00f7	MicroSoft VX1000
 ov519		045e:028c	Micro$oft xbox cam
@@ -282,6 +284,28 @@ sonixj		0c45:613a	Microdia Sonix PC Camera
 sonixj		0c45:613b	Surfer SN-206
 sonixj		0c45:613c	Sonix Pccam168
 sonixj		0c45:6143	Sonix Pccam168
+sn9c20x		0c45:6240	PC Camera (SN9C201 + MT9M001)
+sn9c20x		0c45:6242	PC Camera (SN9C201 + MT9M111)
+sn9c20x		0c45:6248	PC Camera (SN9C201 + OV9655)
+sn9c20x		0c45:624e	PC Camera (SN9C201 + SOI968)
+sn9c20x		0c45:624f	PC Camera (SN9C201 + OV9650)
+sn9c20x		0c45:6251	PC Camera (SN9C201 + OV9650)
+sn9c20x		0c45:6253	PC Camera (SN9C201 + OV9650)
+sn9c20x		0c45:6260	PC Camera (SN9C201 + OV7670)
+sn9c20x		0c45:6270	PC Camera (SN9C201 + MT9V011/MT9V111/MT9V112)
+sn9c20x		0c45:627b	PC Camera (SN9C201 + OV7660)
+sn9c20x		0c45:627c	PC Camera (SN9C201 + HV7131R)
+sn9c20x		0c45:627f	PC Camera (SN9C201 + OV9650)
+sn9c20x		0c45:6280	PC Camera (SN9C202 + MT9M001)
+sn9c20x		0c45:6282	PC Camera (SN9C202 + MT9M111)
+sn9c20x		0c45:6288	PC Camera (SN9C202 + OV9655)
+sn9c20x		0c45:628e	PC Camera (SN9C202 + SOI968)
+sn9c20x		0c45:628f	PC Camera (SN9C202 + OV9650)
+sn9c20x		0c45:62a0	PC Camera (SN9C202 + OV7670)
+sn9c20x		0c45:62b0	PC Camera (SN9C202 + MT9V011/MT9V111/MT9V112)
+sn9c20x		0c45:62b3	PC Camera (SN9C202 + OV9655)
+sn9c20x		0c45:62bb	PC Camera (SN9C202 + OV7660)
+sn9c20x		0c45:62bc	PC Camera (SN9C202 + HV7131R)
 sunplus		0d64:0303	Sunplus FashionCam DXG
 etoms		102c:6151	Qcam Sangha CIF
 etoms		102c:6251	Qcam xxxxxx VGA
@@ -290,6 +314,7 @@ spca561		10fd:7e50	FlyCam Usb 100
 zc3xx		10fd:8050	Typhoon Webshot II USB 300k
 ov534		1415:2000	Sony HD Eye for PS3 (SLEH 00201)
 pac207		145f:013a	Trust WB-1300N
+sn9c20x		145f:013d	Trust WB-3600R
 vc032x		15b8:6001	HP 2.0 Megapixel
 vc032x		15b8:6002	HP 2.0 Megapixel rz406aa
 spca501		1776:501c	Arowana 300K CMOS Camera
@@ -300,4 +325,11 @@ spca500		2899:012c	Toptro Industrial
 spca508		8086:0110	Intel Easy PC Camera
 spca500		8086:0630	Intel Pocket PC Camera
 spca506		99fa:8988	Grandtec V.cap
+sn9c20x		a168:0610	Dino-Lite Digital Microscope (SN9C201 + HV7131R)
+sn9c20x		a168:0611	Dino-Lite Digital Microscope (SN9C201 + HV7131R)
+sn9c20x		a168:0613	Dino-Lite Digital Microscope (SN9C201 + HV7131R)
+sn9c20x		a168:0618	Dino-Lite Digital Microscope (SN9C201 + HV7131R)
+sn9c20x		a168:0614	Dino-Lite Digital Microscope (SN9C201 + MT9M111)
+sn9c20x		a168:0615	Dino-Lite Digital Microscope (SN9C201 + MT9M111)
+sn9c20x		a168:0617	Dino-Lite Digital Microscope (SN9C201 + MT9M111)
 spca561		abcd:cdee	Petcam

Makefile

 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 31
-EXTRAVERSION = -rc2
+EXTRAVERSION = -rc5
 NAME = Man-Eating Seals of Antiquity
 
 # *DOCUMENTATION*
@@ -343,7 +343,8 @@ KBUILD_CPPFLAGS := -D__KERNEL__
 KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		   -fno-strict-aliasing -fno-common \
 		   -Werror-implicit-function-declaration \
-		   -Wno-format-security
+		   -Wno-format-security \
+		   -fno-delete-null-pointer-checks
 KBUILD_AFLAGS   := -D__ASSEMBLY__
 
 # Read KERNELRELEASE from include/config/kernel.release (if it exists)
@@ -565,7 +566,7 @@ KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
 KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,)
 
 # disable invalid "can't wrap" optimizations for signed / pointers
-KBUILD_CFLAGS	+= $(call cc-option,-fwrapv)
+KBUILD_CFLAGS	+= $(call cc-option,-fno-strict-overflow)
 
 # revert to pre-gcc-4.4 behaviour of .eh_frame
 KBUILD_CFLAGS	+= $(call cc-option,-fno-dwarf2-cfi-asm)

arch/alpha/include/asm/tlb.h

@@ -9,7 +9,7 @@
 
 #include <asm-generic/tlb.h>
 
-#define __pte_free_tlb(tlb, pte)			pte_free((tlb)->mm, pte)
-#define __pmd_free_tlb(tlb, pmd)			pmd_free((tlb)->mm, pmd)
+#define __pte_free_tlb(tlb, pte, address)		pte_free((tlb)->mm, pte)
+#define __pmd_free_tlb(tlb, pmd, address)		pmd_free((tlb)->mm, pmd)
  
 #endif

arch/alpha/kernel/ptrace.c

@@ -8,7 +8,6 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
 #include <linux/user.h>

arch/arm/Kconfig

@@ -46,10 +46,6 @@ config GENERIC_CLOCKEVENTS_BROADCAST
 	depends on GENERIC_CLOCKEVENTS
 	default y if SMP && !LOCAL_TIMERS
 
-config MMU
-	bool
-	default y
-
 config NO_IOPORT
 	bool
 
@@ -126,6 +122,13 @@ config ARCH_HAS_ILOG2_U32
 config ARCH_HAS_ILOG2_U64
 	bool
 
+config ARCH_HAS_CPUFREQ
+	bool
+	help
+	  Internal node to signify that the ARCH has CPUFREQ support
+	  and that the relevant menu configurations are displayed for
+	  it.
+
 config GENERIC_HWEIGHT
 	bool
 	default y
@@ -188,6 +191,13 @@ source "kernel/Kconfig.freezer"
 
 menu "System Type"
 
+config MMU
+	bool "MMU-based Paged Memory Management Support"
+	default y
+	help
+	  Select if you want MMU-based virtualised addressing space
+	  support by paged memory management. If unsure, say 'Y'.
+
 choice
 	prompt "ARM system type"
 	default ARCH_VERSATILE
@@ -203,6 +213,7 @@ config ARCH_AAEC2000
 config ARCH_INTEGRATOR
 	bool "ARM Ltd. Integrator family"
 	select ARM_AMBA
+	select ARCH_HAS_CPUFREQ
 	select HAVE_CLK
 	select COMMON_CLKDEV
 	select ICST525
@@ -329,6 +340,20 @@ config ARCH_H720X
 	help
 	  This enables support for systems based on the Hynix HMS720x
 
+config ARCH_NOMADIK
+	bool "STMicroelectronics Nomadik"
+	select ARM_AMBA
+	select ARM_VIC
+	select CPU_ARM926T
+	select HAVE_CLK
+	select COMMON_CLKDEV
+	select GENERIC_TIME
+	select GENERIC_CLOCKEVENTS
+	select GENERIC_GPIO
+	select ARCH_REQUIRE_GPIOLIB
+	help
+	  Support for the Nomadik platform by ST-Ericsson
+
 config ARCH_IOP13XX
 	bool "IOP13xx-based"
 	depends on MMU
@@ -519,6 +544,7 @@ config ARCH_PXA
 	bool "PXA2xx/PXA3xx-based"
 	depends on MMU
 	select ARCH_MTD_XIP
+	select ARCH_HAS_CPUFREQ
 	select GENERIC_GPIO
 	select HAVE_CLK
 	select COMMON_CLKDEV
@@ -561,6 +587,7 @@ config ARCH_SA1100
 	select ISA
 	select ARCH_SPARSEMEM_ENABLE
 	select ARCH_MTD_XIP
+	select ARCH_HAS_CPUFREQ
 	select GENERIC_GPIO
 	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
@@ -573,6 +600,7 @@ config ARCH_SA1100
 config ARCH_S3C2410
 	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
 	select GENERIC_GPIO
+	select ARCH_HAS_CPUFREQ
 	select HAVE_CLK
 	help
 	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
@@ -583,9 +611,18 @@ config ARCH_S3C64XX
 	bool "Samsung S3C64XX"
 	select GENERIC_GPIO
 	select HAVE_CLK
+	select ARCH_HAS_CPUFREQ
 	help
 	  Samsung S3C64XX series based systems
 
+config ARCH_S5PC1XX
+	bool "Samsung S5PC1XX"
+	select GENERIC_GPIO
+	select HAVE_CLK
+	select CPU_V7
+	help
+	  Samsung S5PC1XX series based systems
+
 config ARCH_SHARK
 	bool "Shark"
 	select CPU_SA110
@@ -642,6 +679,7 @@ config ARCH_OMAP
 	select GENERIC_GPIO
 	select HAVE_CLK
 	select ARCH_REQUIRE_GPIOLIB
+	select ARCH_HAS_CPUFREQ
 	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
 	help
@@ -707,6 +745,7 @@ source "arch/arm/mach-kirkwood/Kconfig"
 source "arch/arm/plat-s3c24xx/Kconfig"
 source "arch/arm/plat-s3c64xx/Kconfig"
 source "arch/arm/plat-s3c/Kconfig"
+source "arch/arm/plat-s5pc1xx/Kconfig"
 
 if ARCH_S3C2410
 source "arch/arm/mach-s3c2400/Kconfig"
@@ -724,6 +763,10 @@ endif
 
 source "arch/arm/plat-stmp3xxx/Kconfig"
 
+if ARCH_S5PC1XX
+source "arch/arm/mach-s5pc100/Kconfig"
+endif
+
 source "arch/arm/mach-lh7a40x/Kconfig"
 
 source "arch/arm/mach-h720x/Kconfig"
@@ -738,6 +781,8 @@ source "arch/arm/mach-at91/Kconfig"
 
 source "arch/arm/plat-mxc/Kconfig"
 
+source "arch/arm/mach-nomadik/Kconfig"
+
 source "arch/arm/mach-netx/Kconfig"
 
 source "arch/arm/mach-ns9xxx/Kconfig"
@@ -986,18 +1031,7 @@ config LOCAL_TIMERS
 	  accounting to be spread across the timer interval, preventing a
 	  "thundering herd" at every timer tick.
 
-config PREEMPT
-	bool "Preemptible Kernel (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
-	help
-	  This option reduces the latency of the kernel when reacting to
-	  real-time or interactive events by allowing a low priority process to
-	  be preempted even if it is in kernel mode executing a system call.
-	  This allows applications to run more reliably even when the system is
-	  under load.
-
-	  Say Y here if you are building a kernel for a desktop, embedded
-	  or real-time system.  Say N if you are unsure.
+source kernel/Kconfig.preempt
 
 config HZ
 	int
@@ -1007,6 +1041,21 @@ config HZ
 	default AT91_TIMER_HZ if ARCH_AT91
 	default 100
 
+config THUMB2_KERNEL
+	bool "Compile the kernel in Thumb-2 mode"
+	depends on CPU_V7 && EXPERIMENTAL
+	select AEABI
+	select ARM_ASM_UNIFIED
+	help
+	  By enabling this option, the kernel will be compiled in
+	  Thumb-2 mode. A compiler/assembler that understand the unified
+	  ARM-Thumb syntax is needed.
+
+	  If unsure, say N.
+
+config ARM_ASM_UNIFIED
+	bool
+
 config AEABI
 	bool "Use the ARM EABI to compile the kernel"
 	help
@@ -1270,7 +1319,7 @@ endmenu
 
 menu "CPU Power Management"
 
-if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_PXA || ARCH_S3C64XX)
+if ARCH_HAS_CPUFREQ
 
 source "drivers/cpufreq/Kconfig"
 
@@ -1305,6 +1354,52 @@ config CPU_FREQ_S3C64XX
 	bool "CPUfreq support for Samsung S3C64XX CPUs"
 	depends on CPU_FREQ && CPU_S3C6410
 
+config CPU_FREQ_S3C
+	bool
+	help
+	  Internal configuration node for common cpufreq on Samsung SoC
+
+config CPU_FREQ_S3C24XX
+	bool "CPUfreq driver for Samsung S3C24XX series CPUs"
+	depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
+	select CPU_FREQ_S3C
+	help
+	  This enables the CPUfreq driver for the Samsung S3C24XX family
+	  of CPUs.
+
+	  For details, take a look at <file:Documentation/cpu-freq>.
+
+	  If in doubt, say N.
+
+config CPU_FREQ_S3C24XX_PLL
+	bool "Support CPUfreq changing of PLL frequency"
+	depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
+	help
+	  Compile in support for changing the PLL frequency from the
+	  S3C24XX series CPUfreq driver. The PLL takes time to settle
+	  after a frequency change, so by default it is not enabled.
+
+	  This also means that the PLL tables for the selected CPU(s) will
+	  be built which may increase the size of the kernel image.
+
+config CPU_FREQ_S3C24XX_DEBUG
+	bool "Debug CPUfreq Samsung driver core"
+	depends on CPU_FREQ_S3C24XX
+	help
+	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
+
+config CPU_FREQ_S3C24XX_IODEBUG
+	bool "Debug CPUfreq Samsung driver IO timing"
+	depends on CPU_FREQ_S3C24XX
+	help
+	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
+
+config CPU_FREQ_S3C24XX_DEBUGFS
+	bool "Export debugfs for CPUFreq"
+	depends on CPU_FREQ_S3C24XX && DEBUG_FS
+	help
+	  Export status information via debugfs.
+
 endif
 
 source "drivers/cpuidle/Kconfig"
@@ -1406,107 +1501,7 @@ endmenu
 
 source "net/Kconfig"
 
-menu "Device Drivers"
-
-source "drivers/base/Kconfig"
-
-source "drivers/connector/Kconfig"
-
-if ALIGNMENT_TRAP || !CPU_CP15_MMU
-source "drivers/mtd/Kconfig"
-endif
-
-source "drivers/parport/Kconfig"
-
-source "drivers/pnp/Kconfig"
-
-source "drivers/block/Kconfig"
-
-# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
-
-source "drivers/misc/Kconfig"
-
-source "drivers/ide/Kconfig"
-
-source "drivers/scsi/Kconfig"
-
-source "drivers/ata/Kconfig"
-
-source "drivers/md/Kconfig"
-
-source "drivers/message/fusion/Kconfig"
-
-source "drivers/ieee1394/Kconfig"
-
-source "drivers/message/i2o/Kconfig"
-
-source "drivers/net/Kconfig"
-
-source "drivers/isdn/Kconfig"
-
-# input before char - char/joystick depends on it. As does USB.
-
-source "drivers/input/Kconfig"
-
-source "drivers/char/Kconfig"
-
-source "drivers/i2c/Kconfig"
-
-source "drivers/spi/Kconfig"
-
-source "drivers/gpio/Kconfig"
-
-source "drivers/w1/Kconfig"
-
-source "drivers/power/Kconfig"
-
-source "drivers/hwmon/Kconfig"
-
-source "drivers/thermal/Kconfig"
-
-source "drivers/watchdog/Kconfig"
-
-source "drivers/ssb/Kconfig"
-
-#source "drivers/l3/Kconfig"
-
-source "drivers/mfd/Kconfig"
-
-source "drivers/media/Kconfig"
-
-source "drivers/video/Kconfig"
-
-source "sound/Kconfig"
-
-source "drivers/hid/Kconfig"
-
-source "drivers/usb/Kconfig"
-
-source "drivers/uwb/Kconfig"
-
-source "drivers/mmc/Kconfig"
-
-source "drivers/memstick/Kconfig"
-
-source "drivers/accessibility/Kconfig"
-
-source "drivers/leds/Kconfig"
-
-source "drivers/rtc/Kconfig"
-
-source "drivers/dma/Kconfig"
-
-source "drivers/dca/Kconfig"
-
-source "drivers/auxdisplay/Kconfig"
-
-source "drivers/regulator/Kconfig"
-
-source "drivers/uio/Kconfig"
-
-source "drivers/staging/Kconfig"
-
-endmenu
+source "drivers/Kconfig"
 
 source "fs/Kconfig"
 

arch/arm/Kconfig.debug

@@ -8,6 +8,7 @@ source "lib/Kconfig.debug"
 # n, but then RMK will have to kill you ;).
 config FRAME_POINTER
 	bool
+	depends on !THUMB2_KERNEL
 	default y if !ARM_UNWIND
 	help
 	  If you say N here, the resulting kernel will be slightly smaller and

arch/arm/Makefile

@@ -93,9 +93,16 @@ ifeq ($(CONFIG_ARM_UNWIND),y)
 CFLAGS_ABI	+=-funwind-tables
 endif
 
+ifeq ($(CONFIG_THUMB2_KERNEL),y)
+AFLAGS_AUTOIT	:=$(call as-option,-Wa$(comma)-mimplicit-it=thumb,-Wa$(comma)-mauto-it)
+AFLAGS_NOWARN	:=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
+CFLAGS_THUMB2	:=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
+AFLAGS_THUMB2	:=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb
+endif
+
 # Need -Uarm for gcc < 3.x
-KBUILD_CFLAGS	+=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
-KBUILD_AFLAGS	+=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
+KBUILD_CFLAGS	+=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
+KBUILD_AFLAGS	+=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
 
 CHECKFLAGS	+= -D__arm__
 
@@ -136,8 +143,10 @@ machine-$(CONFIG_ARCH_MSM)		:= msm
 machine-$(CONFIG_ARCH_MV78XX0)		:= mv78xx0
 machine-$(CONFIG_ARCH_MX1)		:= mx1
 machine-$(CONFIG_ARCH_MX2)		:= mx2
+machine-$(CONFIG_ARCH_MX25)		:= mx25
 machine-$(CONFIG_ARCH_MX3)		:= mx3
 machine-$(CONFIG_ARCH_NETX)		:= netx
+machine-$(CONFIG_ARCH_NOMADIK)		:= nomadik
 machine-$(CONFIG_ARCH_NS9XXX)		:= ns9xxx
 machine-$(CONFIG_ARCH_OMAP1)		:= omap1
 machine-$(CONFIG_ARCH_OMAP2)		:= omap2
@@ -151,6 +160,7 @@ machine-$(CONFIG_ARCH_RPC)		:= rpc
 machine-$(CONFIG_ARCH_S3C2410)		:= s3c2410 s3c2400 s3c2412 s3c2440 s3c2442 s3c2443
 machine-$(CONFIG_ARCH_S3C24A0)		:= s3c24a0
 machine-$(CONFIG_ARCH_S3C64XX)		:= s3c6400 s3c6410
+machine-$(CONFIG_ARCH_S5PC1XX)		:= s5pc100
 machine-$(CONFIG_ARCH_SA1100)		:= sa1100
 machine-$(CONFIG_ARCH_SHARK)		:= shark
 machine-$(CONFIG_ARCH_STMP378X)		:= stmp378x
@@ -159,6 +169,7 @@ machine-$(CONFIG_ARCH_U300)		:= u300
 machine-$(CONFIG_ARCH_VERSATILE)	:= versatile
 machine-$(CONFIG_ARCH_W90X900)		:= w90x900
 machine-$(CONFIG_FOOTBRIDGE)		:= footbridge
+machine-$(CONFIG_ARCH_MXC91231)		:= mxc91231
 
 # Platform directory name.  This list is sorted alphanumerically
 # by CONFIG_* macro name.
@@ -169,6 +180,7 @@ plat-$(CONFIG_PLAT_ORION)	:= orion
 plat-$(CONFIG_PLAT_PXA)		:= pxa
 plat-$(CONFIG_PLAT_S3C24XX)	:= s3c24xx s3c
 plat-$(CONFIG_PLAT_S3C64XX)	:= s3c64xx s3c
+plat-$(CONFIG_PLAT_S5PC1XX)	:= s5pc1xx s3c
 plat-$(CONFIG_ARCH_STMP3XXX)	:= stmp3xxx
 
 ifeq ($(CONFIG_ARCH_EBSA110),y)

arch/arm/boot/Makefile

@@ -61,7 +61,7 @@ endif
 
 quiet_cmd_uimage = UIMAGE  $@
       cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A arm -O linux -T kernel \
-		   -C none -a $(LOADADDR) -e $(LOADADDR) \
+		   -C none -a $(LOADADDR) -e $(STARTADDR) \
 		   -n 'Linux-$(KERNELRELEASE)' -d $< $@
 
 ifeq ($(CONFIG_ZBOOT_ROM),y)
@@ -70,6 +70,13 @@ else
 $(obj)/uImage: LOADADDR=$(ZRELADDR)
 endif
 
+ifeq ($(CONFIG_THUMB2_KERNEL),y)
+# Set bit 0 to 1 so that "mov pc, rx" switches to Thumb-2 mode
+$(obj)/uImage: STARTADDR=$(shell echo $(LOADADDR) | sed -e "s/.$$/1/")
+else
+$(obj)/uImage: STARTADDR=$(LOADADDR)
+endif
+
 $(obj)/uImage:	$(obj)/zImage FORCE
 	$(call if_changed,uimage)
 	@echo '  Image $@ is ready'

arch/arm/boot/compressed/head.S

@@ -140,7 +140,8 @@ start:
 		tst	r2, #3			@ not user?
 		bne	not_angel
 		mov	r0, #0x17		@ angel_SWIreason_EnterSVC
-		swi	0x123456		@ angel_SWI_ARM
+ ARM(		swi	0x123456	)	@ angel_SWI_ARM
+ THUMB(		svc	0xab		)	@ angel_SWI_THUMB
 not_angel:
 		mrs	r2, cpsr		@ turn off interrupts to
 		orr	r2, r2, #0xc0		@ prevent angel from running
@@ -161,7 +162,9 @@ not_angel:
 
 		.text
 		adr	r0, LC0
-		ldmia	r0, {r1, r2, r3, r4, r5, r6, ip, sp}
+ ARM(		ldmia	r0, {r1, r2, r3, r4, r5, r6, ip, sp}	)
+ THUMB(		ldmia	r0, {r1, r2, r3, r4, r5, r6, ip}	)
+ THUMB(		ldr	sp, [r0, #28]				)
 		subs	r0, r0, r1		@ calculate the delta offset
 
 						@ if delta is zero, we are
@@ -263,22 +266,25 @@ not_relocated:	mov	r0, #0
  * r6     = processor ID
  * r7     = architecture ID
  * r8     = atags pointer
- * r9-r14 = corrupted
+ * r9-r12,r14 = corrupted
  */
 		add	r1, r5, r0		@ end of decompressed kernel
 		adr	r2, reloc_start
 		ldr	r3, LC1
 		add	r3, r2, r3
-1:		ldmia	r2!, {r9 - r14}		@ copy relocation code
-		stmia	r1!, {r9 - r14}
-		ldmia	r2!, {r9 - r14}
-		stmia	r1!, {r9 - r14}
+1:		ldmia	r2!, {r9 - r12, r14}	@ copy relocation code
+		stmia	r1!, {r9 - r12, r14}
+		ldmia	r2!, {r9 - r12, r14}
+		stmia	r1!, {r9 - r12, r14}
 		cmp	r2, r3
 		blo	1b
-		add	sp, r1, #128		@ relocate the stack
+		mov	sp, r1
+		add	sp, sp, #128		@ relocate the stack
 
 		bl	cache_clean_flush
-		add	pc, r5, r0		@ call relocation code
+ ARM(		add	pc, r5, r0		) @ call relocation code
+ THUMB(		add	r12, r5, r0		)
+ THUMB(		mov	pc, r12			) @ call relocation code
 
 /*
  * We're not in danger of overwriting ourselves.  Do this the simple way.
@@ -291,6 +297,7 @@ wont_overwrite:	mov	r0, r4
 		bl	decompress_kernel
 		b	call_kernel
 
+		.align	2
 		.type	LC0, #object
 LC0:		.word	LC0			@ r1
 		.word	__bss_start		@ r2
@@ -431,6 +438,7 @@ ENDPROC(__setup_mmu)
 
 __armv4_mmu_cache_on:
 		mov	r12, lr
+#ifdef CONFIG_MMU
 		bl	__setup_mmu
 		mov	r0, #0
 		mcr	p15, 0, r0, c7, c10, 4	@ drain write buffer
@@ -444,10 +452,12 @@ __armv4_mmu_cache_on:
 		bl	__common_mmu_cache_on
 		mov	r0, #0
 		mcr	p15, 0, r0, c8, c7, 0	@ flush I,D TLBs
+#endif
 		mov	pc, r12
 
 __armv7_mmu_cache_on:
 		mov	r12, lr
+#ifdef CONFIG_MMU
 		mrc	p15, 0, r11, c0, c1, 4	@ read ID_MMFR0
 		tst	r11, #0xf		@ VMSA
 		blne	__setup_mmu
@@ -455,9 +465,11 @@ __armv7_mmu_cache_on:
 		mcr	p15, 0, r0, c7, c10, 4	@ drain write buffer
 		tst	r11, #0xf		@ VMSA
 		mcrne	p15, 0, r0, c8, c7, 0	@ flush I,D TLBs
+#endif
 		mrc	p15, 0, r0, c1, c0, 0	@ read control reg
 		orr	r0, r0, #0x5000		@ I-cache enable, RR cache replacement
 		orr	r0, r0, #0x003c		@ write buffer
+#ifdef CONFIG_MMU
 #ifdef CONFIG_CPU_ENDIAN_BE8
 		orr	r0, r0, #1 << 25	@ big-endian page tables
 #endif
@@ -465,6 +477,7 @@ __armv7_mmu_cache_on:
 		movne	r1, #-1
 		mcrne	p15, 0, r3, c2, c0, 0	@ load page table pointer
 		mcrne	p15, 0, r1, c3, c0, 0	@ load domain access control
+#endif
 		mcr	p15, 0, r0, c1, c0, 0	@ load control register
 		mrc	p15, 0, r0, c1, c0, 0	@ and read it back
 		mov	r0, #0
@@ -498,6 +511,7 @@ __arm6_mmu_cache_on:
 		mov	pc, r12
 
 __common_mmu_cache_on:
+#ifndef CONFIG_THUMB2_KERNEL
 #ifndef DEBUG
 		orr	r0, r0, #0x000d		@ Write buffer, mmu
 #endif
@@ -509,6 +523,7 @@ __common_mmu_cache_on:
 1:		mcr	p15, 0, r0, c1, c0, 0	@ load control register
 		mrc	p15, 0, r0, c1, c0, 0	@ and read it back to
 		sub	pc, lr, r0, lsr #32	@ properly flush pipeline
+#endif
 
 /*
  * All code following this line is relocatable.  It is relocated by
@@ -522,7 +537,7 @@ __common_mmu_cache_on:
  * r6     = processor ID
  * r7     = architecture ID
  * r8     = atags pointer
- * r9-r14 = corrupted
+ * r9-r12,r14 = corrupted
  */
 		.align	5
 reloc_start:	add	r9, r5, r0
@@ -531,13 +546,14 @@ reloc_start:	add	r9, r5, r0
 		mov	r1, r4
 1:
 		.rept	4
-		ldmia	r5!, {r0, r2, r3, r10 - r14}	@ relocate kernel
-		stmia	r1!, {r0, r2, r3, r10 - r14}
+		ldmia	r5!, {r0, r2, r3, r10 - r12, r14}	@ relocate kernel
+		stmia	r1!, {r0, r2, r3, r10 - r12, r14}
 		.endr
 
 		cmp	r5, r9
 		blo	1b
-		add	sp, r1, #128		@ relocate the stack
+		mov	sp, r1
+		add	sp, sp, #128		@ relocate the stack
 		debug_reloc_end
 
 call_kernel:	bl	cache_clean_flush
@@ -571,7 +587,9 @@ call_cache_fn:	adr	r12, proc_types
 		ldr	r2, [r12, #4]		@ get mask
 		eor	r1, r1, r6		@ (real ^ match)
 		tst	r1, r2			@       & mask
-		addeq	pc, r12, r3		@ call cache function
+ ARM(		addeq	pc, r12, r3		) @ call cache function
+ THUMB(		addeq	r12, r3			)
+ THUMB(		moveq	pc, r12			) @ call cache function
 		add	r12, r12, #4*5
 		b	1b
 
@@ -589,13 +607,15 @@ call_cache_fn:	adr	r12, proc_types
  * methods.  Writeback caches _must_ have the flush method
  * defined.
  */
+		.align	2
 		.type	proc_types,#object
 proc_types:
 		.word	0x41560600		@ ARM6/610
 		.word	0xffffffe0
-		b	__arm6_mmu_cache_off	@ works, but slow
-		b	__arm6_mmu_cache_off
+		W(b)	__arm6_mmu_cache_off	@ works, but slow
+		W(b)	__arm6_mmu_cache_off
 		mov	pc, lr
+ THUMB(		nop				)
 @		b	__arm6_mmu_cache_on		@ untested
 @		b	__arm6_mmu_cache_off
 @		b	__armv3_mmu_cache_flush
@@ -603,76 +623,84 @@ proc_types:
 		.word	0x00000000		@ old ARM ID
 		.word	0x0000f000
 		mov	pc, lr
+ THUMB(		nop				)
 		mov	pc, lr
+ THUMB(		nop				)
 		mov	pc, lr
+ THUMB(		nop				)
 
 		.word	0x41007000		@ ARM7/710
 		.word	0xfff8fe00
-		b	__arm7_mmu_cache_off
-		b	__arm7_mmu_cache_off
+		W(b)	__arm7_mmu_cache_off
+		W(b)	__arm7_mmu_cache_off
 		mov	pc, lr
+ THUMB(		nop				)
 
 		.word	0x41807200		@ ARM720T (writethrough)
 		.word	0xffffff00
-		b	__armv4_mmu_cache_on
-		b	__armv4_mmu_cache_off
+		W(b)	__armv4_mmu_cache_on
+		W(b)	__armv4_mmu_cache_off
 		mov	pc, lr
+ THUMB(		nop				)
 
 		.word	0x41007400		@ ARM74x
 		.word	0xff00ff00
-		b	__armv3_mpu_cache_on
-		b	__armv3_mpu_cache_off
-		b	__armv3_mpu_cache_flush
+		W(b)	__armv3_mpu_cache_on
+		W(b)	__armv3_mpu_cache_off
+		W(b)	__armv3_mpu_cache_flush
 		
 		.word	0x41009400		@ ARM94x
 		.word	0xff00ff00
-		b	__armv4_mpu_cache_on
-		b	__armv4_mpu_cache_off
-		b	__armv4_mpu_cache_flush
+		W(b)	__armv4_mpu_cache_on
+		W(b)	__armv4_mpu_cache_off
+		W(b)	__armv4_mpu_cache_flush
 
 		.word	0x00007000		@ ARM7 IDs
 		.word	0x0000f000
 		mov	pc, lr
+ THUMB(		nop				)
 		mov	pc, lr
+ THUMB(		nop				)
 		mov	pc, lr
+ THUMB(		nop				)
 
 		@ Everything from here on will be the new ID system.
 
 		.word	0x4401a100		@ sa110 / sa1100
 		.word	0xffffffe0
-		b	__armv4_mmu_cache_on
-		b	__armv4_mmu_cache_off
-		b	__armv4_mmu_cache_flush
+		W(b)	__armv4_mmu_cache_on
+		W(b)	__armv4_mmu_cache_off
+		W(b)	__armv4_mmu_cache_flush
 
 		.word	0x6901b110		@ sa1110
 		.word	0xfffffff0
-		b	__armv4_mmu_cache_on
-		b	__armv4_mmu_cache_off
-		b	__armv4_mmu_cache_flush
+		W(b)	__armv4_mmu_cache_on
+		W(b)	__armv4_mmu_cache_off
+		W(b)	__armv4_mmu_cache_flush
 
 		.word	0x56056930
 		.word	0xff0ffff0		@ PXA935
-		b	__armv4_mmu_cache_on
-		b	__armv4_mmu_cache_off
-		b	__armv4_mmu_cache_flush
+		W(b)	__armv4_mmu_cache_on
+		W(b)	__armv4_mmu_cache_off
+		W(b)	__armv4_mmu_cache_flush
 
 		.word	0x56158000		@ PXA168
 		.word	0xfffff000
-		b __armv4_mmu_cache_on
-		b __armv4_mmu_cache_off
-		b __armv5tej_mmu_cache_flush
+		W(b)	__armv4_mmu_cache_on
+		W(b)	__armv4_mmu_cache_off
+		W(b)	__armv5tej_mmu_cache_flush
 
 		.word	0x56056930
 		.word	0xff0ffff0		@ PXA935
-		b	__armv4_mmu_cache_on
-		b	__armv4_mmu_cache_off
-		b	__armv4_mmu_cache_flush
+		W(b)	__armv4_mmu_cache_on
+		W(b)	__armv4_mmu_cache_off
+		W(b)	__armv4_mmu_cache_flush
 
 		.word	0x56050000		@ Feroceon
 		.word	0xff0f0000
-		b	__armv4_mmu_cache_on
-		b	__armv4_mmu_cache_off
-		b	__armv5tej_mmu_cache_flush
+		W(b)	__armv4_mmu_cache_on
+		W(b)	__armv4_mmu_cache_off
+		W(b)	__armv5tej_mmu_cache_flush
 
 #ifdef CONFIG_CPU_FEROCEON_OLD_ID
 		/* this conflicts with the standard ARMv5TE entry */
@@ -685,47 +713,50 @@ proc_types:
 
 		.word	0x66015261		@ FA526
 		.word	0xff01fff1
-		b	__fa526_cache_on
-		b	__armv4_mmu_cache_off
-		b	__fa526_cache_flush
+		W(b)	__fa526_cache_on
+		W(b)	__armv4_mmu_cache_off
+		W(b)	__fa526_cache_flush
 
 		@ These match on the architecture ID
 
 		.word	0x00020000		@ ARMv4T
 		.word	0x000f0000
-		b	__armv4_mmu_cache_on
-		b	__armv4_mmu_cache_off
-		b	__armv4_mmu_cache_flush
+		W(b)	__armv4_mmu_cache_on
+		W(b)	__armv4_mmu_cache_off
+		W(b)	__armv4_mmu_cache_flush
 
 		.word	0x00050000		@ ARMv5TE
 		.word	0x000f0000
-		b	__armv4_mmu_cache_on
-		b	__armv4_mmu_cache_off
-		b	__armv4_mmu_cache_flush
+		W(b)	__armv4_mmu_cache_on
+		W(b)	__armv4_mmu_cache_off
+		W(b)	__armv4_mmu_cache_flush
 
 		.word	0x00060000		@ ARMv5TEJ
 		.word	0x000f0000
-		b	__armv4_mmu_cache_on
-		b	__armv4_mmu_cache_off
-		b	__armv5tej_mmu_cache_flush
+		W(b)	__armv4_mmu_cache_on
+		W(b)	__armv4_mmu_cache_off
+		W(b)	__armv4_mmu_cache_flush
 
 		.word	0x0007b000		@ ARMv6
 		.word	0x000ff000
-		b	__armv4_mmu_cache_on
-		b	__armv4_mmu_cache_off
-		b	__armv6_mmu_cache_flush
+		W(b)	__armv4_mmu_cache_on
+		W(b)	__armv4_mmu_cache_off
+		W(b)	__armv6_mmu_cache_flush
 
 		.word	0x000f0000		@ new CPU Id
 		.word	0x000f0000
-		b	__armv7_mmu_cache_on
-		b	__armv7_mmu_cache_off
-		b	__armv7_mmu_cache_flush
+		W(b)	__armv7_mmu_cache_on
+		W(b)	__armv7_mmu_cache_off
+		W(b)	__armv7_mmu_cache_flush
 
 		.word	0			@ unrecognised type
 		.word	0
 		mov	pc, lr
+ THUMB(		nop				)
 		mov	pc, lr
+ THUMB(		nop				)
 		mov	pc, lr
+ THUMB(		nop				)
 
 		.size	proc_types, . - proc_types
 
@@ -760,22 +791,30 @@ __armv3_mpu_cache_off:
 		mov	pc, lr
 
 __armv4_mmu_cache_off:
+#ifdef CONFIG_MMU
 		mrc	p15, 0, r0, c1, c0
 		bic	r0, r0, #0x000d
 		mcr	p15, 0, r0, c1, c0	@ turn MMU and cache off
 		mov	r0, #0
 		mcr	p15, 0, r0, c7, c7	@ invalidate whole cache v4
 		mcr	p15, 0, r0, c8, c7	@ invalidate whole TLB v4
+#endif
 		mov	pc, lr
 
 __armv7_mmu_cache_off:
 		mrc	p15, 0, r0, c1, c0
+#ifdef CONFIG_MMU
 		bic	r0, r0, #0x000d
+#else
+		bic	r0, r0, #0x000c
+#endif
 		mcr	p15, 0, r0, c1, c0	@ turn MMU and cache off
 		mov	r12, lr
 		bl	__armv7_mmu_cache_flush
 		mov	r0, #0
+#ifdef CONFIG_MMU
 		mcr	p15, 0, r0, c8, c7, 0	@ invalidate whole TLB
+#endif
 		mcr	p15, 0, r0, c7, c5, 6	@ invalidate BTC
 		mcr	p15, 0, r0, c7, c10, 4	@ DSB
 		mcr	p15, 0, r0, c7, c5, 4	@ ISB
@@ -852,7 +891,7 @@ __armv7_mmu_cache_flush:
 		b	iflush
 hierarchical:
 		mcr	p15, 0, r10, c7, c10, 5	@ DMB
-		stmfd	sp!, {r0-r5, r7, r9, r11}
+		stmfd	sp!, {r0-r7, r9-r11}
 		mrc	p15, 1, r0, c0, c0, 1	@ read clidr
 		ands	r3, r0, #0x7000000	@ extract loc from clidr
 		mov	r3, r3, lsr #23		@ left align loc bit field
@@ -877,8 +916,12 @@ loop1:
 loop2:
 		mov	r9, r4			@ create working copy of max way size
 loop3:
-		orr	r11, r10, r9, lsl r5	@ factor way and cache number into r11
-		orr	r11, r11, r7, lsl r2	@ factor index number into r11
+ ARM(		orr	r11, r10, r9, lsl r5	) @ factor way and cache number into r11
+ ARM(		orr	r11, r11, r7, lsl r2	) @ factor index number into r11
+ THUMB(		lsl	r6, r9, r5		)
+ THUMB(		orr	r11, r10, r6		) @ factor way and cache number into r11
+ THUMB(		lsl	r6, r7, r2		)
+ THUMB(		orr	r11, r11, r6		) @ factor index number into r11
 		mcr	p15, 0, r11, c7, c14, 2	@ clean & invalidate by set/way
 		subs	r9, r9, #1		@ decrement the way
 		bge	loop3
@@ -889,7 +932,7 @@ skip:
 		cmp	r3, r10
 		bgt	loop1
 finished:
-		ldmfd	sp!, {r0-r5, r7, r9, r11}
+		ldmfd	sp!, {r0-r7, r9-r11}
 		mov	r10, #0			@ swith back to cache level 0
 		mcr	p15, 2, r10, c0, c0, 0	@ select current cache level in cssr
 iflush:
@@ -923,9 +966,13 @@ __armv4_mmu_cache_flush:
 		mov	r11, #8
 		mov	r11, r11, lsl r3	@ cache line size in bytes
 no_cache_id:
-		bic	r1, pc, #63		@ align to longest cache line
+		mov	r1, pc
+		bic	r1, r1, #63		@ align to longest cache line
 		add	r2, r1, r2
-1:		ldr	r3, [r1], r11		@ s/w flush D cache
+1:
+ ARM(		ldr	r3, [r1], r11		) @ s/w flush D cache
+ THUMB(		ldr     r3, [r1]		) @ s/w flush D cache
+ THUMB(		add     r1, r1, r11		)
 		teq	r1, r2
 		bne	1b
 
@@ -945,6 +992,7 @@ __armv3_mpu_cache_flush:
  * memory, which again must be relocatable.
  */
 #ifdef DEBUG
+		.align	2
 		.type	phexbuf,#object
 phexbuf:	.space	12
 		.size	phexbuf, . - phexbuf

arch/arm/common/vic.c

@@ -22,10 +22,20 @@
 #include <linux/list.h>
 #include <linux/io.h>
 #include <linux/sysdev.h>
+#include <linux/amba/bus.h>
 
 #include <asm/mach/irq.h>
 #include <asm/hardware/vic.h>
 
+static void vic_ack_irq(unsigned int irq)
+{
+	void __iomem *base = get_irq_chip_data(irq);
+	irq &= 31;
+	writel(1 << irq, base + VIC_INT_ENABLE_CLEAR);
+	/* moreover, clear the soft-triggered, in case it was the reason */
+	writel(1 << irq, base + VIC_INT_SOFT_CLEAR);
+}
+
 static void vic_mask_irq(unsigned int irq)
 {
 	void __iomem *base = get_irq_chip_data(irq);
@@ -253,12 +263,16 @@ static inline void vic_pm_register(void __iomem *base, unsigned int irq, u32 arg
 
 static struct irq_chip vic_chip = {
 	.name	= "VIC",
-	.ack	= vic_mask_irq,
+	.ack	= vic_ack_irq,
 	.mask	= vic_mask_irq,
 	.unmask	= vic_unmask_irq,
 	.set_wake = vic_set_wake,
 };
 
+/* The PL190 cell from ARM has been modified by ST, so handle both here */
+static void vik_init_st(void __iomem *base, unsigned int irq_start,
+			 u32 vic_sources);
+
 /**
  * vic_init - initialise a vectored interrupt controller
  * @base: iomem base address
@@ -270,6 +284,28 @@ void __init vic_init(void __iomem *base, unsigned int irq_start,
 		     u32 vic_sources, u32 resume_sources)
 {
 	unsigned int i;
+	u32 cellid = 0;
+	enum amba_vendor vendor;
+
+	/* Identify which VIC cell this one is, by reading the ID */
+	for (i = 0; i < 4; i++) {
+		u32 addr = ((u32)base & PAGE_MASK) + 0xfe0 + (i * 4);
+		cellid |= (readl(addr) & 0xff) << (8 * i);
+	}
+	vendor = (cellid >> 12) & 0xff;
+	printk(KERN_INFO "VIC @%p: id 0x%08x, vendor 0x%02x\n",
+	       base, cellid, vendor);
+
+	switch(vendor) {
+	case AMBA_VENDOR_ST:
+		vik_init_st(base, irq_start, vic_sources);
+		return;
+	default:
+		printk(KERN_WARNING "VIC: unknown vendor, continuing anyways\n");
+		/* fall through */
+	case AMBA_VENDOR_ARM:
+		break;
+	}
 
 	/* Disable all interrupts initially. */
 
@@ -306,3 +342,60 @@ void __init vic_init(void __iomem *base, unsigned int irq_start,
 
 	vic_pm_register(base, irq_start, resume_sources);
 }
+
+/*
+ * The PL190 cell from ARM has been modified by ST to handle 64 interrupts.
+ * The original cell has 32 interrupts, while the modified one has 64,
+ * replocating two blocks 0x00..0x1f in 0x20..0x3f. In that case
+ * the probe function is called twice, with base set to offset 000
+ *  and 020 within the page. We call this "second block".
+ */
+static void __init vik_init_st(void __iomem *base, unsigned int irq_start,
+				u32 vic_sources)
+{
+	unsigned int i;
+	int vic_2nd_block = ((unsigned long)base & ~PAGE_MASK) != 0;
+
+	/* Disable all interrupts initially. */
+
+	writel(0, base + VIC_INT_SELECT);
+	writel(0, base + VIC_INT_ENABLE);
+	writel(~0, base + VIC_INT_ENABLE_CLEAR);
+	writel(0, base + VIC_IRQ_STATUS);
+	writel(0, base + VIC_ITCR);
+	writel(~0, base + VIC_INT_SOFT_CLEAR);
+
+	/*
+	 * Make sure we clear all existing interrupts. The vector registers
+	 * in this cell are after the second block of general registers,
+	 * so we can address them using standard offsets, but only from
+	 * the second base address, which is 0x20 in the page
+	 */
+	if (vic_2nd_block) {
+		writel(0, base + VIC_PL190_VECT_ADDR);
+		for (i = 0; i < 19; i++) {
+			unsigned int value;
+
+			value = readl(base + VIC_PL190_VECT_ADDR);
+			writel(value, base + VIC_PL190_VECT_ADDR);
+		}
+		/* ST has 16 vectors as well, but we don't enable them by now */
+		for (i = 0; i < 16; i++) {
+			void __iomem *reg = base + VIC_VECT_CNTL0 + (i * 4);
+			writel(0, reg);
+		}
+
+		writel(32, base + VIC_PL190_DEF_VECT_ADDR);
+	}
+
+	for (i = 0; i < 32; i++) {
+		if (vic_sources & (1 << i)) {
+			unsigned int irq = irq_start + i;
+
+			set_irq_chip(irq, &vic_chip);
+			set_irq_chip_data(irq, base);
+			set_irq_handler(irq, handle_level_irq);
+			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+		}
+	}
+}

arch/arm/include/asm/elf.h

@@ -55,6 +55,9 @@ typedef struct user_fp elf_fpregset_t;
 #define R_ARM_MOVW_ABS_NC	43
 #define R_ARM_MOVT_ABS		44
 
+#define R_ARM_THM_CALL		10
+#define R_ARM_THM_JUMP24	30
+
 /*
  * These are used to set parameters in the core dumps.
  */