Merge remote branch 'rmk/for-linus' into for-linus

* rmk/for-linus: (1557 commits)
  ARM: 6806/1: irq: introduce entry and exit functions for chained handlers
  ARM: 6781/1: Thumb-2: Work around buggy Thumb-2 short branch relocations in gas
  ARM: 6747/1: P2V: Thumb2 support
  ARM: 6798/1: aout-core: zero thread debug registers in a.out core dump
  ARM: 6796/1: Footbridge: Fix I/O mappings for NOMMU mode
  ARM: 6784/1: errata: no automatic Store Buffer drain on Cortex-A9
  ARM: 6772/1: errata: possible fault MMU translations following an ASID switch
  ARM: 6776/1: mach-ux500: activate fix for errata 753970
  ARM: 6794/1: SPEAr: Append UL to device address macros.
  ARM: 6793/1: SPEAr: Remove unused *_SIZE macros from spear*.h files
  ARM: 6792/1: SPEAr: Replace SIZE macro's with SZ_4K macros
  ARM: 6791/1: SPEAr3xx: Declare device structures after shirq code
  ARM: 6790/1: SPEAr: Clock Framework: Rename usbd clock and align apb_clk entry
  ARM: 6789/1: SPEAr3xx: Rename sdio to sdhci
  ARM: 6788/1: SPEAr: Include mach/hardware.h instead of mach/spear.h
  ARM: 6787/1: SPEAr: Reorder #includes in .h & .c files.
  ARM: 6681/1: SPEAr: add debugfs support to clk API
  ARM: 6703/1: SPEAr: update clk API support
  ARM: 6679/1: SPEAr: make clk API functions more generic
  ARM: 6737/1: SPEAr: formalized timer support
  ...

Conflicts:
	arch/arm/mach-msm/board-msm7x27.c
	arch/arm/mach-msm/board-msm7x30.c
	arch/arm/mach-msm/board-qsd8x50.c
	arch/arm/mach-msm/board-sapphire.c
	arch/arm/mach-msm/include/mach/memory.h

.gitignore

@@ -28,6 +28,7 @@ modules.builtin
 *.gz
 *.bz2
 *.lzma
+*.xz
 *.lzo
 *.patch
 *.gcno

.mailmap

@@ -23,6 +23,7 @@ Andy Adamson <andros@citi.umich.edu>
 Arnaud Patard <arnaud.patard@rtp-net.org>
 Arnd Bergmann <arnd@arndb.de>
 Axel Dyks <xl@xlsigned.net>
+Axel Lin <axel.lin@gmail.com>
 Ben Gardner <bgardner@wabtec.com>
 Ben M Cahill <ben.m.cahill@intel.com>
 Björn Steinbrink <B.Steinbrink@gmx.de>

Documentation/ABI/testing/sysfs-platform-at91

@@ -0,0 +1,25 @@
+What:		/sys/devices/platform/at91_can/net/<iface>/mb0_id
+Date:		January 2011
+KernelVersion:	2.6.38
+Contact:	Marc Kleine-Budde <kernel@pengutronix.de>
+Description:
+		Value representing the can_id of mailbox 0.
+
+		Default: 0x7ff (standard frame)
+
+		Due to a chip bug (errata 50.2.6.3 & 50.3.5.3 in
+		"AT91SAM9263 Preliminary 6249H-ATARM-27-Jul-09") the
+		contents of mailbox 0 may be send under certain
+		conditions (even if disabled or in rx mode).
+
+		The workaround in the errata suggests not to use the
+		mailbox and load it with an unused identifier.
+
+		In order to use an extended can_id add the
+		CAN_EFF_FLAG (0x80000000U) to the can_id. Example:
+
+		- standard id 0x7ff:
+		echo 0x7ff      > /sys/class/net/can0/mb0_id
+
+		- extended id 0x1fffffff:
+		echo 0x9fffffff > /sys/class/net/can0/mb0_id

Documentation/DocBook/device-drivers.tmpl

@@ -217,8 +217,8 @@ X!Isound/sound_firmware.c
   <chapter id="uart16x50">
      <title>16x50 UART Driver</title>
 !Iinclude/linux/serial_core.h
-!Edrivers/serial/serial_core.c
-!Edrivers/serial/8250.c
+!Edrivers/tty/serial/serial_core.c
+!Edrivers/tty/serial/8250.c
   </chapter>
 
   <chapter id="fbdev">

Documentation/DocBook/drm.tmpl

@@ -73,8 +73,8 @@
       services.
     </para>
     <para>
-      The core of every DRM driver is struct drm_device.  Drivers
-      will typically statically initialize a drm_device structure,
+      The core of every DRM driver is struct drm_driver.  Drivers
+      will typically statically initialize a drm_driver structure,
       then pass it to drm_init() at load time.
     </para>
 
@@ -84,7 +84,7 @@
     <title>Driver initialization</title>
     <para>
       Before calling the DRM initialization routines, the driver must
-      first create and fill out a struct drm_device structure.
+      first create and fill out a struct drm_driver structure.
     </para>
     <programlisting>
       static struct drm_driver driver = {

Documentation/DocBook/filesystems.tmpl

@@ -82,6 +82,11 @@
      </sect1>
   </chapter>
 
+  <chapter id="fs_events">
+     <title>Events based on file descriptors</title>
+!Efs/eventfd.c
+  </chapter>
+
   <chapter id="sysfs">
      <title>The Filesystem for Exporting Kernel Objects</title>
 !Efs/sysfs/file.c

Documentation/arm/SH-Mobile/Makefile

@@ -0,0 +1,8 @@
+BIN := vrl4
+
+.PHONY: all
+all: $(BIN)
+
+.PHONY: clean
+clean:
+	rm -f *.o $(BIN)

Documentation/arm/SH-Mobile/vrl4.c

@@ -0,0 +1,169 @@
+/*
+ * vrl4 format generator
+ *
+ * Copyright (C) 2010 Simon Horman
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+/*
+ * usage: vrl4 < zImage > out
+ *	  dd if=out of=/dev/sdx bs=512 seek=1 # Write the image to sector 1
+ *
+ * Reads a zImage from stdin and writes a vrl4 image to stdout.
+ * In practice this means writing a padded vrl4 header to stdout followed
+ * by the zImage.
+ *
+ * The padding places the zImage at ALIGN bytes into the output.
+ * The vrl4 uses ALIGN + START_BASE as the start_address.
+ * This is where the mask ROM will jump to after verifying the header.
+ *
+ * The header sets copy_size to min(sizeof(zImage), MAX_BOOT_PROG_LEN) + ALIGN.
+ * That is, the mask ROM will load the padded header (ALIGN bytes)
+ * And then MAX_BOOT_PROG_LEN bytes of the image, or the entire image,
+ * whichever is smaller.
+ *
+ * The zImage is not modified in any way.
+ */
+
+#define _BSD_SOURCE
+#include <endian.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <errno.h>
+
+struct hdr {
+	uint32_t magic1;
+	uint32_t reserved1;
+	uint32_t magic2;
+	uint32_t reserved2;
+	uint16_t copy_size;
+	uint16_t boot_options;
+	uint32_t reserved3;
+	uint32_t start_address;
+	uint32_t reserved4;
+	uint32_t reserved5;
+	char     reserved6[308];
+};
+
+#define DECLARE_HDR(h)					\
+	struct hdr (h) = {				\
+		.magic1 =	htole32(0xea000000),	\
+		.reserved1 =	htole32(0x56),		\
+		.magic2 =	htole32(0xe59ff008),	\
+		.reserved3 =	htole16(0x1) }
+
+/* Align to 512 bytes, the MMCIF sector size */
+#define ALIGN_BITS	9
+#define ALIGN		(1 << ALIGN_BITS)
+
+#define START_BASE	0xe55b0000
+
+/*
+ * With an alignment of 512 the header uses the first sector.
+ * There is a 128 sector (64kbyte) limit on the data loaded by the mask ROM.
+ * So there are 127 sectors left for the boot programme. But in practice
+ * Only a small portion of a zImage is needed, 16 sectors should be more
+ * than enough.
+ *
+ * Note that this sets how much of the zImage is copied by the mask ROM.
+ * The entire zImage is present after the header and is loaded
+ * by the code in the boot program (which is the first portion of the zImage).
+ */
+#define	MAX_BOOT_PROG_LEN (16 * 512)
+
+#define ROUND_UP(x)	((x + ALIGN - 1) & ~(ALIGN - 1))
+
+ssize_t do_read(int fd, void *buf, size_t count)
+{
+	size_t offset = 0;
+	ssize_t l;
+
+	while (offset < count) {
+		l = read(fd, buf + offset, count - offset);
+		if (!l)
+			break;
+		if (l < 0) {
+			if (errno == EAGAIN || errno == EWOULDBLOCK)
+				continue;
+			perror("read");
+			return -1;
+		}
+		offset += l;
+	}
+
+	return offset;
+}
+
+ssize_t do_write(int fd, const void *buf, size_t count)
+{
+	size_t offset = 0;
+	ssize_t l;
+
+	while (offset < count) {
+		l = write(fd, buf + offset, count - offset);
+		if (l < 0) {
+			if (errno == EAGAIN || errno == EWOULDBLOCK)
+				continue;
+			perror("write");
+			return -1;
+		}
+		offset += l;
+	}
+
+	return offset;
+}
+
+ssize_t write_zero(int fd, size_t len)
+{
+	size_t i = len;
+
+	while (i--) {
+		const char x = 0;
+		if (do_write(fd, &x, 1) < 0)
+			return -1;
+	}
+
+	return len;
+}
+
+int main(void)
+{
+	DECLARE_HDR(hdr);
+	char boot_program[MAX_BOOT_PROG_LEN];
+	size_t aligned_hdr_len, alligned_prog_len;
+	ssize_t prog_len;
+
+	prog_len = do_read(0, boot_program, sizeof(boot_program));
+	if (prog_len <= 0)
+		return -1;
+
+	aligned_hdr_len = ROUND_UP(sizeof(hdr));
+	hdr.start_address = htole32(START_BASE + aligned_hdr_len);
+	alligned_prog_len = ROUND_UP(prog_len);
+	hdr.copy_size = htole16(aligned_hdr_len + alligned_prog_len);
+
+	if (do_write(1, &hdr, sizeof(hdr)) < 0)
+		return -1;
+	if (write_zero(1, aligned_hdr_len - sizeof(hdr)) < 0)
+		return -1;
+
+	if (do_write(1, boot_program, prog_len) < 0)
+		return 1;
+
+	/* Write out the rest of the kernel */
+	while (1) {
+		prog_len = do_read(0, boot_program, sizeof(boot_program));
+		if (prog_len < 0)
+			return 1;
+		if (prog_len == 0)
+			break;
+		if (do_write(1, boot_program, prog_len) < 0)
+			return 1;
+	}
+
+	return 0;
+}

Documentation/arm/SH-Mobile/zboot-rom-mmcif.txt

@@ -0,0 +1,29 @@
+ROM-able zImage boot from MMC
+-----------------------------
+
+An ROM-able zImage compiled with ZBOOT_ROM_MMCIF may be written to MMC and
+SuperH Mobile ARM will to boot directly from the MMCIF hardware block.
+
+This is achieved by the mask ROM loading the first portion of the image into
+MERAM and then jumping to it. This portion contains loader code which
+copies the entire image to SDRAM and jumps to it. From there the zImage
+boot code proceeds as normal, uncompressing the image into its final
+location and then jumping to it.
+
+This code has been tested on an AP4EB board using the developer 1A eMMC
+boot mode which is configured using the following jumper settings.
+The board used for testing required a patched mask ROM in order for
+this mode to function.
+
+   8 7 6 5 4 3 2 1
+   x|x|x|x|x| |x|
+S4 -+-+-+-+-+-+-+-
+    | | | | |x| |x on
+
+The zImage must be written to the MMC card at sector 1 (512 bytes) in
+vrl4 format. A utility vrl4 is supplied to accomplish this.
+
+e.g.
+	vrl4 < zImage | dd of=/dev/sdX bs=512 seek=1
+
+A dual-voltage MMC 4.0 card was used for testing.