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Merge branch 'for-3.14/core' into for-3.14/drivers

Browse Source 
We need the updated code to make bcache easier to merge.
This commit is contained in:
Jens Axboe 2014-01-08 09:32:45 -07:00
commit 54a387cb9e
1314 changed files with 15442 additions and 7034 deletions
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5
CREDITS
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@ -655,6 +655,11 @@ S: Stanford University
S: Stanford, California 94305
S: USA
N: Carlos Chinea
E: carlos.chinea@nokia.com
E: cch.devel@gmail.com
D: Author of HSI Subsystem
N: Randolph Chung
E: tausq@debian.org
D: Linux/PA-RISC hacker

11
Documentation/Changes
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@ -196,13 +196,6 @@ chmod 0644 /dev/cpu/microcode
as root before you can use this. You'll probably also want to
get the user-space microcode_ctl utility to use with this.
Powertweak
----------
If you are running v0.1.17 or earlier, you should upgrade to
version v0.99.0 or higher. Running old versions may cause problems
with programs using shared memory.
udev
----
udev is a userspace application for populating /dev dynamically with
@ -366,10 +359,6 @@ Intel P6 microcode
------------------
o <http://www.urbanmyth.org/microcode/>
Powertweak
----------
o <http://powertweak.sourceforge.net/>
udev
----
o <http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev.html>

2
Documentation/DocBook/device-drivers.tmpl
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@ -58,7 +58,7 @@
</sect1>
<sect1><title>Wait queues and Wake events</title>
!Iinclude/linux/wait.h
!Ekernel/wait.c
!Ekernel/sched/wait.c
</sect1>
<sect1><title>High-resolution timers</title>
!Iinclude/linux/ktime.h

8
Documentation/DocBook/media/v4l/vidioc-expbuf.xml
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@ -73,7 +73,8 @@ range from zero to the maximal number of valid planes for the currently active
format. For the single-planar API, applications must set <structfield> plane
</structfield> to zero. Additional flags may be posted in the <structfield>
flags </structfield> field. Refer to a manual for open() for details.
Currently only O_CLOEXEC is supported. All other fields must be set to zero.
Currently only O_CLOEXEC, O_RDONLY, O_WRONLY, and O_RDWR are supported. All
other fields must be set to zero.
In the case of multi-planar API, every plane is exported separately using
multiple <constant> VIDIOC_EXPBUF </constant> calls. </para>
@ -170,8 +171,9 @@ multi-planar API. Otherwise this value must be set to zero. </entry>
<entry>__u32</entry>
<entry><structfield>flags</structfield></entry>
<entry>Flags for the newly created file, currently only <constant>
O_CLOEXEC </constant> is supported, refer to the manual of open() for more
details.</entry>
O_CLOEXEC </constant>, <constant>O_RDONLY</constant>, <constant>O_WRONLY
</constant>, and <constant>O_RDWR</constant> are supported, refer to the manual
of open() for more details.</entry>
</row>
<row>
<entry>__s32</entry>

6
Documentation/assoc_array.txt
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@ -164,10 +164,10 @@ This points to a number of methods, all of which need to be provided:
(4) Diff the index keys of two objects.
int (*diff_objects)(const void *a, const void *b);
int (*diff_objects)(const void *object, const void *index_key);
Return the bit position at which the index keys of two objects differ or
-1 if they are the same.
Return the bit position at which the index key of the specified object
differs from the given index key or -1 if they are the same.
(5) Free an object.

72
Documentation/block/null_blk.txt Normal file
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@ -0,0 +1,72 @@
Null block device driver
================================================================================
I. Overview
The null block device (/dev/nullb*) is used for benchmarking the various
block-layer implementations. It emulates a block device of X gigabytes in size.
The following instances are possible:
Single-queue block-layer
- Request-based.
- Single submission queue per device.
- Implements IO scheduling algorithms (CFQ, Deadline, noop).
Multi-queue block-layer
- Request-based.
- Configurable submission queues per device.
No block-layer (Known as bio-based)
- Bio-based. IO requests are submitted directly to the device driver.
- Directly accepts bio data structure and returns them.
All of them have a completion queue for each core in the system.
II. Module parameters applicable for all instances:
queue_mode=[0-2]: Default: 2-Multi-queue
Selects which block-layer the module should instantiate with.
0: Bio-based.
1: Single-queue.
2: Multi-queue.
home_node=[0--nr_nodes]: Default: NUMA_NO_NODE
Selects what CPU node the data structures are allocated from.
gb=[Size in GB]: Default: 250GB
The size of the device reported to the system.
bs=[Block size (in bytes)]: Default: 512 bytes
The block size reported to the system.
nr_devices=[Number of devices]: Default: 2
Number of block devices instantiated. They are instantiated as /dev/nullb0,
etc.
irq_mode=[0-2]: Default: 1-Soft-irq
The completion mode used for completing IOs to the block-layer.
0: None.
1: Soft-irq. Uses IPI to complete IOs across CPU nodes. Simulates the overhead
when IOs are issued from another CPU node than the home the device is
connected to.
2: Timer: Waits a specific period (completion_nsec) for each IO before
completion.
completion_nsec=[ns]: Default: 10.000ns
Combined with irq_mode=2 (timer). The time each completion event must wait.
submit_queues=[0..nr_cpus]:
The number of submission queues attached to the device driver. If unset, it
defaults to 1 on single-queue and bio-based instances. For multi-queue,
it is ignored when use_per_node_hctx module parameter is 1.
hw_queue_depth=[0..qdepth]: Default: 64
The hardware queue depth of the device.
III: Multi-queue specific parameters
use_per_node_hctx=[0/1]: Default: 0
0: The number of submit queues are set to the value of the submit_queues
parameter.
1: The multi-queue block layer is instantiated with a hardware dispatch
queue for each CPU node in the system.

10
Documentation/device-mapper/cache.txt
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@ -266,10 +266,12 @@ E.g.
Invalidation is removing an entry from the cache without writing it
back. Cache blocks can be invalidated via the invalidate_cblocks
message, which takes an arbitrary number of cblock ranges. Each cblock
must be expressed as a decimal value, in the future a variant message
that takes cblock ranges expressed in hexidecimal may be needed to
better support efficient invalidation of larger caches. The cache must
be in passthrough mode when invalidate_cblocks is used.
range's end value is "one past the end", meaning 5-10 expresses a range
of values from 5 to 9. Each cblock must be expressed as a decimal
value, in the future a variant message that takes cblock ranges
expressed in hexidecimal may be needed to better support efficient
invalidation of larger caches. The cache must be in passthrough mode
when invalidate_cblocks is used.
invalidate_cblocks [<cblock>|<cblock begin>-<cblock end>]*

8
Documentation/devicetree/bindings/arm/omap/mpu.txt
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@ -7,10 +7,18 @@ The MPU contain CPUs, GIC, L2 cache and a local PRCM.
Required properties:
- compatible : Should be "ti,omap3-mpu" for OMAP3
Should be "ti,omap4-mpu" for OMAP4
Should be "ti,omap5-mpu" for OMAP5
- ti,hwmods: "mpu"
Examples:
- For an OMAP5 SMP system:
mpu {
compatible = "ti,omap5-mpu";
ti,hwmods = "mpu"
};
- For an OMAP4 SMP system:
mpu {

1
Documentation/devicetree/bindings/arm/pmu.txt
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@ -7,6 +7,7 @@ representation in the device tree should be done as under:-
Required properties:
- compatible : should be one of
"arm,armv8-pmuv3"
"arm,cortex-a15-pmu"
"arm,cortex-a9-pmu"
"arm,cortex-a8-pmu"

2
Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
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@ -49,7 +49,7 @@ adc@12D10000 {
/* NTC thermistor is a hwmon device */
ncp15wb473@0 {
compatible = "ntc,ncp15wb473";
pullup-uV = <1800000>;
pullup-uv = <1800000>;
pullup-ohm = <47000>;
pulldown-ohm = <0>;
io-channels = <&adc 4>;

2
Documentation/devicetree/bindings/clock/exynos4-clock.txt
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@ -6,7 +6,7 @@ SoC's in the Exynos4 family.
Required Properties:
- comptible: should be one of the following.
- compatible: should be one of the following.
- "samsung,exynos4210-clock" - controller compatible with Exynos4210 SoC.
- "samsung,exynos4412-clock" - controller compatible with Exynos4412 SoC.

2
Documentation/devicetree/bindings/clock/exynos5250-clock.txt
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@ -5,7 +5,7 @@ controllers within the Exynos5250 SoC.
Required Properties:
- comptible: should be one of the following.
- compatible: should be one of the following.
- "samsung,exynos5250-clock" - controller compatible with Exynos5250 SoC.
- reg: physical base address of the controller and length of memory mapped

2
Documentation/devicetree/bindings/clock/exynos5420-clock.txt
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@ -5,7 +5,7 @@ controllers within the Exynos5420 SoC.
Required Properties:
- comptible: should be one of the following.
- compatible: should be one of the following.
- "samsung,exynos5420-clock" - controller compatible with Exynos5420 SoC.
- reg: physical base address of the controller and length of memory mapped

2
Documentation/devicetree/bindings/clock/exynos5440-clock.txt
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@ -5,7 +5,7 @@ controllers within the Exynos5440 SoC.
Required Properties:
- comptible: should be "samsung,exynos5440-clock".
- compatible: should be "samsung,exynos5440-clock".
- reg: physical base address of the controller and length of memory mapped
region.

66
Documentation/devicetree/bindings/gpio/8xxx_gpio.txt
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@ -5,16 +5,42 @@ This is for the non-QE/CPM/GUTs GPIO controllers as found on
Every GPIO controller node must have #gpio-cells property defined,
this information will be used to translate gpio-specifiers.
See bindings/gpio/gpio.txt for details of how to specify GPIO
information for devices.
The GPIO module usually is connected to the SoC's internal interrupt
controller, see bindings/interrupt-controller/interrupts.txt (the
interrupt client nodes section) for details how to specify this GPIO
module's interrupt.
The GPIO module may serve as another interrupt controller (cascaded to
the SoC's internal interrupt controller). See the interrupt controller
nodes section in bindings/interrupt-controller/interrupts.txt for
details.
Required properties:
- compatible : "fsl,<CHIP>-gpio" followed by "fsl,mpc8349-gpio" for
83xx, "fsl,mpc8572-gpio" for 85xx and "fsl,mpc8610-gpio" for 86xx.
- #gpio-cells : Should be two. The first cell is the pin number and the
second cell is used to specify optional parameters (currently unused).
- interrupts : Interrupt mapping for GPIO IRQ.
- interrupt-parent : Phandle for the interrupt controller that
services interrupts for this device.
- gpio-controller : Marks the port as GPIO controller.
- compatible: "fsl,<chip>-gpio" followed by "fsl,mpc8349-gpio"
for 83xx, "fsl,mpc8572-gpio" for 85xx, or
"fsl,mpc8610-gpio" for 86xx.
- #gpio-cells: Should be two. The first cell is the pin number
and the second cell is used to specify optional
parameters (currently unused).
- interrupt-parent: Phandle for the interrupt controller that
services interrupts for this device.
- interrupts: Interrupt mapping for GPIO IRQ.
- gpio-controller: Marks the port as GPIO controller.
Optional properties:
- interrupt-controller: Empty boolean property which marks the GPIO
module as an IRQ controller.
- #interrupt-cells: Should be two. Defines the number of integer
cells required to specify an interrupt within
this interrupt controller. The first cell
defines the pin number, the second cell
defines additional flags (trigger type,
trigger polarity). Note that the available
set of trigger conditions supported by the
GPIO module depends on the actual SoC.
Example of gpio-controller nodes for a MPC8347 SoC:
@ -22,39 +48,27 @@ Example of gpio-controller nodes for a MPC8347 SoC:
#gpio-cells = <2>;
compatible = "fsl,mpc8347-gpio", "fsl,mpc8349-gpio";
reg = <0xc00 0x100>;
interrupts = <74 0x8>;
interrupt-parent = <&ipic>;
interrupts = <74 0x8>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
gpio2: gpio-controller@d00 {
#gpio-cells = <2>;
compatible = "fsl,mpc8347-gpio", "fsl,mpc8349-gpio";
reg = <0xd00 0x100>;
interrupts = <75 0x8>;
interrupt-parent = <&ipic>;
interrupts = <75 0x8>;
gpio-controller;
};
See booting-without-of.txt for details of how to specify GPIO
information for devices.
To use GPIO pins as interrupt sources for peripherals, specify the
GPIO controller as the interrupt parent and define GPIO number +
trigger mode using the interrupts property, which is defined like
this:
interrupts = <number trigger>, where:
- number: GPIO pin (0..31)
- trigger: trigger mode:
2 = trigger on falling edge
3 = trigger on both edges
Example of device using this is:
Example of a peripheral using the GPIO module as an IRQ controller:
funkyfpga@0 {
compatible = "funky-fpga";
...
interrupts = <4 3>;
interrupt-parent = <&gpio1>;
interrupts = <4 3>;
};

3
Documentation/devicetree/bindings/i2c/i2c-omap.txt
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@ -1,7 +1,8 @@
I2C for OMAP platforms
Required properties :
- compatible : Must be "ti,omap3-i2c" or "ti,omap4-i2c"
- compatible : Must be "ti,omap2420-i2c", "ti,omap2430-i2c", "ti,omap3-i2c"
or "ti,omap4-i2c"
- ti,hwmods : Must be "i2c<n>", n being the instance number (1-based)
- #address-cells = <1>;
- #size-cells = <0>;

54
Documentation/devicetree/bindings/mmc/ti-omap.txt Normal file
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@ -0,0 +1,54 @@
* TI MMC host controller for OMAP1 and 2420
The MMC Host Controller on TI OMAP1 and 2420 family provides
an interface for MMC, SD, and SDIO types of memory cards.
This file documents differences between the core properties described
by mmc.txt and the properties used by the omap mmc driver.
Note that this driver will not work with omap2430 or later omaps,
please see the omap hsmmc driver for the current omaps.
Required properties:
- compatible: Must be "ti,omap2420-mmc", for OMAP2420 controllers
- ti,hwmods: For 2420, must be "msdi<n>", where n is controller
instance starting 1
Examples:
msdi1: mmc@4809c000 {
compatible = "ti,omap2420-mmc";
ti,hwmods = "msdi1";
reg = <0x4809c000 0x80>;
interrupts = <83>;
dmas = <&sdma 61 &sdma 62>;
dma-names = "tx", "rx";
};
* TI MMC host controller for OMAP1 and 2420
The MMC Host Controller on TI OMAP1 and 2420 family provides
an interface for MMC, SD, and SDIO types of memory cards.
This file documents differences between the core properties described
by mmc.txt and the properties used by the omap mmc driver.
Note that this driver will not work with omap2430 or later omaps,
please see the omap hsmmc driver for the current omaps.
Required properties:
- compatible: Must be "ti,omap2420-mmc", for OMAP2420 controllers
- ti,hwmods: For 2420, must be "msdi<n>", where n is controller
instance starting 1
Examples:
msdi1: mmc@4809c000 {
compatible = "ti,omap2420-mmc";
ti,hwmods = "msdi1";
reg = <0x4809c000 0x80>;
interrupts = <83>;
dmas = <&sdma 61 &sdma 62>;
dma-names = "tx", "rx";
};

2
Documentation/devicetree/bindings/net/davinci_emac.txt
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@ -4,7 +4,7 @@ This file provides information, what the device node
for the davinci_emac interface contains.
Required properties:
- compatible: "ti,davinci-dm6467-emac";
- compatible: "ti,davinci-dm6467-emac" or "ti,am3517-emac"
- reg: Offset and length of the register set for the device
- ti,davinci-ctrl-reg-offset: offset to control register
- ti,davinci-ctrl-mod-reg-offset: offset to control module register

2
Documentation/devicetree/bindings/net/fsl-fec.txt
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@ -15,6 +15,7 @@ Optional properties:
only if property "phy-reset-gpios" is available. Missing the property
will have the duration be 1 millisecond. Numbers greater than 1000 are
invalid and 1 millisecond will be used instead.
- phy-supply: regulator that powers the Ethernet PHY.
Example:
@ -25,4 +26,5 @@ ethernet@83fec000 {
phy-mode = "mii";
phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */
local-mac-address = [00 04 9F 01 1B B9];
phy-supply = <&reg_fec_supply>;
};

4
Documentation/devicetree/bindings/net/smsc-lan91c111.txt
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@ -8,3 +8,7 @@ Required properties:
Optional properties:
- phy-device : phandle to Ethernet phy
- local-mac-address : Ethernet mac address to use
- reg-io-width : Mask of sizes (in bytes) of the IO accesses that
are supported on the device. Valid value for SMSC LAN91c111 are
1, 2 or 4. If it's omitted or invalid, the size would be 2 meaning
16-bit access only.

17
Documentation/devicetree/bindings/rng/qcom,prng.txt Normal file
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@ -0,0 +1,17 @@
Qualcomm MSM pseudo random number generator.
Required properties:
- compatible : should be "qcom,prng"
- reg : specifies base physical address and size of the registers map
- clocks : phandle to clock-controller plus clock-specifier pair
- clock-names : "core" clocks all registers, FIFO and circuits in PRNG IP block
Example:
rng@f9bff000 {
compatible = "qcom,prng";
reg = <0xf9bff000 0x200>;
clocks = <&clock GCC_PRNG_AHB_CLK>;
clock-names = "core";
};

5
Documentation/devicetree/bindings/spi/nvidia,tegra20-spi.txt
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@ -1,5 +0,0 @@
NVIDIA Tegra 2 SPI device
Required properties:
- compatible : should be "nvidia,tegra20-spi".
- gpios : should specify GPIOs used for chipselect.

2
Documentation/devicetree/bindings/vendor-prefixes.txt
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@ -32,12 +32,14 @@ est ESTeem Wireless Modems
fsl Freescale Semiconductor
GEFanuc GE Fanuc Intelligent Platforms Embedded Systems, Inc.
gef GE Fanuc Intelligent Platforms Embedded Systems, Inc.
gmt Global Mixed-mode Technology, Inc.
hisilicon Hisilicon Limited.
hp Hewlett Packard
ibm International Business Machines (IBM)
idt Integrated Device Technologies, Inc.
img Imagination Technologies Ltd.
intercontrol Inter Control Group
lg LG Corporation
linux Linux-specific binding
lsi LSI Corp. (LSI Logic)
marvell Marvell Technology Group Ltd.

14
Documentation/gpio/00-INDEX Normal file
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@ -0,0 +1,14 @@
00-INDEX
- This file
gpio.txt
- Introduction to GPIOs and their kernel interfaces
consumer.txt
- How to obtain and use GPIOs in a driver
driver.txt
- How to write a GPIO driver
board.txt
- How to assign GPIOs to a consumer device and a function
sysfs.txt
- Information about the GPIO sysfs interface
gpio-legacy.txt
- Historical documentation of the deprecated GPIO integer interface

115
Documentation/gpio/board.txt Normal file
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@ -0,0 +1,115 @@
GPIO Mappings
=============
This document explains how GPIOs can be assigned to given devices and functions.
Note that it only applies to the new descriptor-based interface. For a
description of the deprecated integer-based GPIO interface please refer to
gpio-legacy.txt (actually, there is no real mapping possible with the old
interface; you just fetch an integer from somewhere and request the
corresponding GPIO.
Platforms that make use of GPIOs must select ARCH_REQUIRE_GPIOLIB (if GPIO usage
is mandatory) or ARCH_WANT_OPTIONAL_GPIOLIB (if GPIO support can be omitted) in
their Kconfig. Then, how GPIOs are mapped depends on what the platform uses to
describe its hardware layout. Currently, mappings can be defined through device
tree, ACPI, and platform data.
Device Tree
-----------
GPIOs can easily be mapped to devices and functions in the device tree. The
exact way to do it depends on the GPIO controller providing the GPIOs, see the
device tree bindings for your controller.
GPIOs mappings are defined in the consumer device's node, in a property named
<function>-gpios, where <function> is the function the driver will request
through gpiod_get(). For example:
foo_device {
compatible = "acme,foo";
...
led-gpios = <&gpio 15 GPIO_ACTIVE_HIGH>, /* red */
<&gpio 16 GPIO_ACTIVE_HIGH>, /* green */
<&gpio 17 GPIO_ACTIVE_HIGH>; /* blue */
power-gpio = <&gpio 1 GPIO_ACTIVE_LOW>;
};
This property will make GPIOs 15, 16 and 17 available to the driver under the
"led" function, and GPIO 1 as the "power" GPIO:
struct gpio_desc *red, *green, *blue, *power;
red = gpiod_get_index(dev, "led", 0);
green = gpiod_get_index(dev, "led", 1);
blue = gpiod_get_index(dev, "led", 2);
power = gpiod_get(dev, "power");
The led GPIOs will be active-high, while the power GPIO will be active-low (i.e.
gpiod_is_active_low(power) will be true).
ACPI
----
ACPI does not support function names for GPIOs. Therefore, only the "idx"
argument of gpiod_get_index() is useful to discriminate between GPIOs assigned
to a device. The "con_id" argument can still be set for debugging purposes (it
will appear under error messages as well as debug and sysfs nodes).
Platform Data
-------------
Finally, GPIOs can be bound to devices and functions using platform data. Board
files that desire to do so need to include the following header:
#include <linux/gpio/driver.h>
GPIOs are mapped by the means of tables of lookups, containing instances of the
gpiod_lookup structure. Two macros are defined to help declaring such mappings:
GPIO_LOOKUP(chip_label, chip_hwnum, dev_id, con_id, flags)
GPIO_LOOKUP_IDX(chip_label, chip_hwnum, dev_id, con_id, idx, flags)
where
- chip_label is the label of the gpiod_chip instance providing the GPIO
- chip_hwnum is the hardware number of the GPIO within the chip
- dev_id is the identifier of the device that will make use of this GPIO. If
NULL, the GPIO will be available to all devices.
- con_id is the name of the GPIO function from the device point of view. It
can be NULL.
- idx is the index of the GPIO within the function.
- flags is defined to specify the following properties:
* GPIOF_ACTIVE_LOW - to configure the GPIO as active-low
* GPIOF_OPEN_DRAIN - GPIO pin is open drain type.
* GPIOF_OPEN_SOURCE - GPIO pin is open source type.
In the future, these flags might be extended to support more properties.
Note that GPIO_LOOKUP() is just a shortcut to GPIO_LOOKUP_IDX() where idx = 0.
A lookup table can then be defined as follows:
struct gpiod_lookup gpios_table[] = {
GPIO_LOOKUP_IDX("gpio.0", 15, "foo.0", "led", 0, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("gpio.0", 16, "foo.0", "led", 1, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("gpio.0", 17, "foo.0", "led", 2, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio.0", 1, "foo.0", "power", GPIO_ACTIVE_LOW),
};
And the table can be added by the board code as follows:
gpiod_add_table(gpios_table, ARRAY_SIZE(gpios_table));
The driver controlling "foo.0" will then be able to obtain its GPIOs as follows:
struct gpio_desc *red, *green, *blue, *power;
red = gpiod_get_index(dev, "led", 0);
green = gpiod_get_index(dev, "led", 1);
blue = gpiod_get_index(dev, "led", 2);
power = gpiod_get(dev, "power");
gpiod_direction_output(power, 1);
Since the "power" GPIO is mapped as active-low, its actual signal will be 0
after this code. Contrary to the legacy integer GPIO interface, the active-low
property is handled during mapping and is thus transparent to GPIO consumers.

197
Documentation/gpio/consumer.txt Normal file
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@ -0,0 +1,197 @@
GPIO Descriptor Consumer Interface
==================================
This document describes the consumer interface of the GPIO framework. Note that
it describes the new descriptor-based interface. For a description of the
deprecated integer-based GPIO interface please refer to gpio-legacy.txt.
Guidelines for GPIOs consumers
==============================
Drivers that can't work without standard GPIO calls should have Kconfig entries
that depend on GPIOLIB. The functions that allow a driver to obtain and use
GPIOs are available by including the following file:
#include <linux/gpio/consumer.h>
All the functions that work with the descriptor-based GPIO interface are
prefixed with gpiod_. The gpio_ prefix is used for the legacy interface. No
other function in the kernel should use these prefixes.
Obtaining and Disposing GPIOs
=============================
With the descriptor-based interface, GPIOs are identified with an opaque,
non-forgeable handler that must be obtained through a call to one of the
gpiod_get() functions. Like many other kernel subsystems, gpiod_get() takes the
device that will use the GPIO and the function the requested GPIO is supposed to
fulfill:
struct gpio_desc *gpiod_get(struct device *dev, const char *con_id)
If a function is implemented by using several GPIOs together (e.g. a simple LED
device that displays digits), an additional index argument can be specified:
struct gpio_desc *gpiod_get_index(struct device *dev,
const char *con_id, unsigned int idx)
Both functions return either a valid GPIO descriptor, or an error code checkable
with IS_ERR(). They will never return a NULL pointer.
Device-managed variants of these functions are also defined:
struct gpio_desc *devm_gpiod_get(struct device *dev, const char *con_id)
struct gpio_desc *devm_gpiod_get_index(struct device *dev,
const char *con_id,
unsigned int idx)
A GPIO descriptor can be disposed of using the gpiod_put() function:
void gpiod_put(struct gpio_desc *desc)
It is strictly forbidden to use a descriptor after calling this function. The
device-managed variant is, unsurprisingly:
void devm_gpiod_put(struct device *dev, struct gpio_desc *desc)
Using GPIOs
===========
Setting Direction
-----------------
The first thing a driver must do with a GPIO is setting its direction. This is
done by invoking one of the gpiod_direction_*() functions:
int gpiod_direction_input(struct gpio_desc *desc)
int gpiod_direction_output(struct gpio_desc *desc, int value)
The return value is zero for success, else a negative errno. It should be
checked, since the get/set calls don't return errors and since misconfiguration
is possible. You should normally issue these calls from a task context. However,
for spinlock-safe GPIOs it is OK to use them before tasking is enabled, as part
of early board setup.
For output GPIOs, the value provided becomes the initial output value. This
helps avoid signal glitching during system startup.
A driver can also query the current direction of a GPIO:
int gpiod_get_direction(const struct gpio_desc *desc)
This function will return either GPIOF_DIR_IN or GPIOF_DIR_OUT.
Be aware that there is no default direction for GPIOs. Therefore, **using a GPIO
without setting its direction first is illegal and will result in undefined
behavior!**
Spinlock-Safe GPIO Access
-------------------------
Most GPIO controllers can be accessed with memory read/write instructions. Those
don't need to sleep, and can safely be done from inside hard (non-threaded) IRQ
handlers and similar contexts.
Use the following calls to access GPIOs from an atomic context:
int gpiod_get_value(const struct gpio_desc *desc);
void gpiod_set_value(struct gpio_desc *desc, int value);
The values are boolean, zero for low, nonzero for high. When reading the value
of an output pin, the value returned should be what's seen on the pin. That
won't always match the specified output value, because of issues including
open-drain signaling and output latencies.
The get/set calls do not return errors because "invalid GPIO" should have been
reported earlier from gpiod_direction_*(). However, note that not all platforms
can read the value of output pins; those that can't should always return zero.
Also, using these calls for GPIOs that can't safely be accessed without sleeping
(see below) is an error.
GPIO Access That May Sleep
--------------------------
Some GPIO controllers must be accessed using message based buses like I2C or
SPI. Commands to read or write those GPIO values require waiting to get to the
head of a queue to transmit a command and get its response. This requires
sleeping, which can't be done from inside IRQ handlers.
Platforms that support this type of GPIO distinguish them from other GPIOs by
returning nonzero from this call:
int gpiod_cansleep(const struct gpio_desc *desc)
To access such GPIOs, a different set of accessors is defined:
int gpiod_get_value_cansleep(const struct gpio_desc *desc)
void gpiod_set_value_cansleep(struct gpio_desc *desc, int value)
Accessing such GPIOs requires a context which may sleep, for example a threaded
IRQ handler, and those accessors must be used instead of spinlock-safe
accessors without the cansleep() name suffix.
Other than the fact that these accessors might sleep, and will work on GPIOs
that can't be accessed from hardIRQ handlers, these calls act the same as the
spinlock-safe calls.
Active-low State and Raw GPIO Values
------------------------------------
Device drivers like to manage the logical state of a GPIO, i.e. the value their
device will actually receive, no matter what lies between it and the GPIO line.
In some cases, it might make sense to control the actual GPIO line value. The
following set of calls ignore the active-low property of a GPIO and work on the
raw line value:
int gpiod_get_raw_value(const struct gpio_desc *desc)
void gpiod_set_raw_value(struct gpio_desc *desc, int value)
int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc)
void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, int value)
The active-low state of a GPIO can also be queried using the following call:
int gpiod_is_active_low(const struct gpio_desc *desc)
Note that these functions should only be used with great moderation ; a driver
should not have to care about the physical line level.
GPIOs mapped to IRQs
--------------------
GPIO lines can quite often be used as IRQs. You can get the IRQ number
corresponding to a given GPIO using the following call:
int gpiod_to_irq(const struct gpio_desc *desc)
It will return an IRQ number, or an negative errno code if the mapping can't be
done (most likely because that particular GPIO cannot be used as IRQ). It is an
unchecked error to use a GPIO that wasn't set up as an input using
gpiod_direction_input(), or to use an IRQ number that didn't originally come
from gpiod_to_irq(). gpiod_to_irq() is not allowed to sleep.
Non-error values returned from gpiod_to_irq() can be passed to request_irq() or
free_irq(). They will often be stored into IRQ resources for platform devices,
by the board-specific initialization code. Note that IRQ trigger options are
part of the IRQ interface, e.g. IRQF_TRIGGER_FALLING, as are system wakeup
capabilities.
Interacting With the Legacy GPIO Subsystem
==========================================
Many kernel subsystems still handle GPIOs using the legacy integer-based
interface. Although it is strongly encouraged to upgrade them to the safer
descriptor-based API, the following two functions allow you to convert a GPIO
descriptor into the GPIO integer namespace and vice-versa:
int desc_to_gpio(const struct gpio_desc *desc)
struct gpio_desc *gpio_to_desc(unsigned gpio)
The GPIO number returned by desc_to_gpio() can be safely used as long as the
GPIO descriptor has not been freed. All the same, a GPIO number passed to
gpio_to_desc() must have been properly acquired, and usage of the returned GPIO
descriptor is only possible after the GPIO number has been released.
Freeing a GPIO obtained by one API with the other API is forbidden and an
unchecked error.

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@ -0,0 +1,75 @@
GPIO Descriptor Driver Interface
================================
This document serves as a guide for GPIO chip drivers writers. Note that it
describes the new descriptor-based interface. For a description of the
deprecated integer-based GPIO interface please refer to gpio-legacy.txt.
Each GPIO controller driver needs to include the following header, which defines
the structures used to define a GPIO driver:
#include <linux/gpio/driver.h>
Internal Representation of GPIOs
================================
Inside a GPIO driver, individual GPIOs are identified by their hardware number,
which is a unique number between 0 and n, n being the number of GPIOs managed by
the chip. This number is purely internal: the hardware number of a particular
GPIO descriptor is never made visible outside of the driver.
On top of this internal number, each GPIO also need to have a global number in
the integer GPIO namespace so that it can be used with the legacy GPIO
interface. Each chip must thus have a "base" number (which can be automatically
assigned), and for each GPIO the global number will be (base + hardware number).
Although the integer representation is considered deprecated, it still has many
users and thus needs to be maintained.
So for example one platform could use numbers 32-159 for GPIOs, with a
controller defining 128 GPIOs at a "base" of 32 ; while another platform uses
numbers 0..63 with one set of GPIO controllers, 64-79 with another type of GPIO
controller, and on one particular board 80-95 with an FPGA. The numbers need not
be contiguous; either of those platforms could also use numbers 2000-2063 to
identify GPIOs in a bank of I2C GPIO expanders.
Controller Drivers: gpio_chip
=============================
In the gpiolib framework each GPIO controller is packaged as a "struct
gpio_chip" (see linux/gpio/driver.h for its complete definition) with members
common to each controller of that type:
- methods to establish GPIO direction
- methods used to access GPIO values
- method to return the IRQ number associated to a given GPIO
- flag saying whether calls to its methods may sleep
- optional debugfs dump method (showing extra state like pullup config)
- optional base number (will be automatically assigned if omitted)
- label for diagnostics and GPIOs mapping using platform data
The code implementing a gpio_chip should support multiple instances of the
controller, possibly using the driver model. That code will configure each
gpio_chip and issue gpiochip_add(). Removing a GPIO controller should be rare;
use gpiochip_remove() when it is unavoidable.
Most often a gpio_chip is part of an instance-specific structure with state not
exposed by the GPIO interfaces, such as addressing, power management, and more.
Chips such as codecs will have complex non-GPIO state.
Any debugfs dump method should normally ignore signals which haven't been
requested as GPIOs. They can use gpiochip_is_requested(), which returns either
NULL or the label associated with that GPIO when it was requested.
Locking IRQ usage
-----------------
Input GPIOs can be used as IRQ signals. When this happens, a driver is requested
to mark the GPIO as being used as an IRQ:
int gpiod_lock_as_irq(struct gpio_desc *desc)
This will prevent the use of non-irq related GPIO APIs until the GPIO IRQ lock
is released:
void gpiod_unlock_as_irq(struct gpio_desc *desc)

0
Documentation/gpio.txt → Documentation/gpio/gpio-legacy.txt
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119
Documentation/gpio/gpio.txt Normal file
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@ -0,0 +1,119 @@
GPIO Interfaces
===============
The documents in this directory give detailed instructions on how to access
GPIOs in drivers, and how to write a driver for a device that provides GPIOs
itself.
Due to the history of GPIO interfaces in the kernel, there are two different
ways to obtain and use GPIOs:
- The descriptor-based interface is the preferred way to manipulate GPIOs,
and is described by all the files in this directory excepted gpio-legacy.txt.
- The legacy integer-based interface which is considered deprecated (but still
usable for compatibility reasons) is documented in gpio-legacy.txt.
The remainder of this document applies to the new descriptor-based interface.
gpio-legacy.txt contains the same information applied to the legacy
integer-based interface.
What is a GPIO?
===============
A "General Purpose Input/Output" (GPIO) is a flexible software-controlled
digital signal. They are provided from many kinds of chip, and are familiar
to Linux developers working with embedded and custom hardware. Each GPIO
represents a bit connected to a particular pin, or "ball" on Ball Grid Array
(BGA) packages. Board schematics show which external hardware connects to
which GPIOs. Drivers can be written generically, so that board setup code
passes such pin configuration data to drivers.
System-on-Chip (SOC) processors heavily rely on GPIOs. In some cases, every
non-dedicated pin can be configured as a GPIO; and most chips have at least
several dozen of them. Programmable logic devices (like FPGAs) can easily
provide GPIOs; multifunction chips like power managers, and audio codecs
often have a few such pins to help with pin scarcity on SOCs; and there are
also "GPIO Expander" chips that connect using the I2C or SPI serial buses.
Most PC southbridges have a few dozen GPIO-capable pins (with only the BIOS
firmware knowing how they're used).
The exact capabilities of GPIOs vary between systems. Common options:
- Output values are writable (high=1, low=0). Some chips also have
options about how that value is driven, so that for example only one
value might be driven, supporting "wire-OR" and similar schemes for the
other value (notably, "open drain" signaling).
- Input values are likewise readable (1, 0). Some chips support readback
of pins configured as "output", which is very useful in such "wire-OR"
cases (to support bidirectional signaling). GPIO controllers may have
input de-glitch/debounce logic, sometimes with software controls.
- Inputs can often be used as IRQ signals, often edge triggered but
sometimes level triggered. Such IRQs may be configurable as system
wakeup events, to wake the system from a low power state.
- Usually a GPIO will be configurable as either input or output, as needed
by different product boards; single direction ones exist too.
- Most GPIOs can be accessed while holding spinlocks, but those accessed
through a serial bus normally can't. Some systems support both types.
On a given board each GPIO is used for one specific purpose like monitoring
MMC/SD card insertion/removal, detecting card write-protect status, driving
a LED, configuring a transceiver, bit-banging a serial bus, poking a hardware
watchdog, sensing a switch, and so on.
Common GPIO Properties
======================
These properties are met through all the other documents of the GPIO interface
and it is useful to understand them, especially if you need to define GPIO
mappings.
Active-High and Active-Low
--------------------------
It is natural to assume that a GPIO is "active" when its output signal is 1
("high"), and inactive when it is 0 ("low"). However in practice the signal of a
GPIO may be inverted before is reaches its destination, or a device could decide
to have different conventions about what "active" means. Such decisions should
be transparent to device drivers, therefore it is possible to define a GPIO as
being either active-high ("1" means "active", the default) or active-low ("0"
means "active") so that drivers only need to worry about the logical signal and
not about what happens at the line level.
Open Drain and Open Source
--------------------------
Sometimes shared signals need to use "open drain" (where only the low signal
level is actually driven), or "open source" (where only the high signal level is
driven) signaling. That term applies to CMOS transistors; "open collector" is
used for TTL. A pullup or pulldown resistor causes the high or low signal level.
This is sometimes called a "wire-AND"; or more practically, from the negative
logic (low=true) perspective this is a "wire-OR".
One common example of an open drain signal is a shared active-low IRQ line.
Also, bidirectional data bus signals sometimes use open drain signals.
Some GPIO controllers directly support open drain and open source outputs; many
don't. When you need open drain signaling but your hardware doesn't directly
support it, there's a common idiom you can use to emulate it with any GPIO pin
that can be used as either an input or an output:
LOW: gpiod_direction_output(gpio, 0) ... this drives the signal and overrides
the pullup.
HIGH: gpiod_direction_input(gpio) ... this turns off the output, so the pullup
(or some other device) controls the signal.
The same logic can be applied to emulate open source signaling, by driving the
high signal and configuring the GPIO as input for low. This open drain/open
source emulation can be handled transparently by the GPIO framework.
If you are "driving" the signal high but gpiod_get_value(gpio) reports a low
value (after the appropriate rise time passes), you know some other component is
driving the shared signal low. That's not necessarily an error. As one common
example, that's how I2C clocks are stretched: a slave that needs a slower clock
delays the rising edge of SCK, and the I2C master adjusts its signaling rate
accordingly.

155
Documentation/gpio/sysfs.txt Normal file
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@ -0,0 +1,155 @@
GPIO Sysfs Interface for Userspace
==================================
Platforms which use the "gpiolib" implementors framework may choose to
configure a sysfs user interface to GPIOs. This is different from the
debugfs interface, since it provides control over GPIO direction and
value instead of just showing a gpio state summary. Plus, it could be
present on production systems without debugging support.
Given appropriate hardware documentation for the system, userspace could
know for example that GPIO #23 controls the write protect line used to
protect boot loader segments in flash memory. System upgrade procedures
may need to temporarily remove that protection, first importing a GPIO,
then changing its output state, then updating the code before re-enabling
the write protection. In normal use, GPIO #23 would never be touched,
and the kernel would have no need to know about it.
Again depending on appropriate hardware documentation, on some systems
userspace GPIO can be used to determine system configuration data that
standard kernels won't know about. And for some tasks, simple userspace
GPIO drivers could be all that the system really needs.
Note that standard kernel drivers exist for common "LEDs and Buttons"
GPIO tasks: "leds-gpio" and "gpio_keys", respectively. Use those
instead of talking directly to the GPIOs; they integrate with kernel
frameworks better than your userspace code could.
Paths in Sysfs
--------------
There are three kinds of entry in /sys/class/gpio:
- Control interfaces used to get userspace control over GPIOs;
- GPIOs themselves; and
- GPIO controllers ("gpio_chip" instances).
That's in addition to standard files including the "device" symlink.
The control interfaces are write-only:
/sys/class/gpio/
"export" ... Userspace may ask the kernel to export control of
a GPIO to userspace by writing its number to this file.
Example: "echo 19 > export" will create a "gpio19" node
for GPIO #19, if that's not requested by kernel code.
"unexport" ... Reverses the effect of exporting to userspace.
Example: "echo 19 > unexport" will remove a "gpio19"
node exported using the "export" file.
GPIO signals have paths like /sys/class/gpio/gpio42/ (for GPIO #42)
and have the following read/write attributes:
/sys/class/gpio/gpioN/
"direction" ... reads as either "in" or "out". This value may
normally be written. Writing as "out" defaults to
initializing the value as low. To ensure glitch free
operation, values "low" and "high" may be written to
configure the GPIO as an output with that initial value.
Note that this attribute *will not exist* if the kernel
doesn't support changing the direction of a GPIO, or
it was exported by kernel code that didn't explicitly
allow userspace to reconfigure this GPIO's direction.
"value" ... reads as either 0 (low) or 1 (high). If the GPIO
is configured as an output, this value may be written;
any nonzero value is treated as high.
If the pin can be configured as interrupt-generating interrupt
and if it has been configured to generate interrupts (see the
description of "edge"), you can poll(2) on that file and
poll(2) will return whenever the interrupt was triggered. If
you use poll(2), set the events POLLPRI and POLLERR. If you
use select(2), set the file descriptor in exceptfds. After
poll(2) returns, either lseek(2) to the beginning of the sysfs
file and read the new value or close the file and re-open it
to read the value.
"edge" ... reads as either "none", "rising", "falling", or
"both". Write these strings to select the signal edge(s)
that will make poll(2) on the "value" file return.
This file exists only if the pin can be configured as an
interrupt generating input pin.
"active_low" ... reads as either 0 (false) or 1 (true). Write
any nonzero value to invert the value attribute both
for reading and writing. Existing and subsequent
poll(2) support configuration via the edge attribute
for "rising" and "falling" edges will follow this
setting.
GPIO controllers have paths like /sys/class/gpio/gpiochip42/ (for the
controller implementing GPIOs starting at #42) and have the following
read-only attributes:
/sys/class/gpio/gpiochipN/
"base" ... same as N, the first GPIO managed by this chip
"label" ... provided for diagnostics (not always unique)
"ngpio" ... how many GPIOs this manges (N to N + ngpio - 1)
Board documentation should in most cases cover what GPIOs are used for
what purposes. However, those numbers are not always stable; GPIOs on
a daughtercard might be different depending on the base board being used,
or other cards in the stack. In such cases, you may need to use the
gpiochip nodes (possibly in conjunction with schematics) to determine
the correct GPIO number to use for a given signal.
Exporting from Kernel code
--------------------------
Kernel code can explicitly manage exports of GPIOs which have already been
requested using gpio_request():
/* export the GPIO to userspace */
int gpiod_export(struct gpio_desc *desc, bool direction_may_change);
/* reverse gpio_export() */
void gpiod_unexport(struct gpio_desc *desc);
/* create a sysfs link to an exported GPIO node */
int gpiod_export_link(struct device *dev, const char *name,
struct gpio_desc *desc);
/* change the polarity of a GPIO node in sysfs */
int gpiod_sysfs_set_active_low(struct gpio_desc *desc, int value);
After a kernel driver requests a GPIO, it may only be made available in
the sysfs interface by gpiod_export(). The driver can control whether the
signal direction may change. This helps drivers prevent userspace code
from accidentally clobbering important system state.
This explicit exporting can help with debugging (by making some kinds
of experiments easier), or can provide an always-there interface that's
suitable for documenting as part of a board support package.
After the GPIO has been exported, gpiod_export_link() allows creating
symlinks from elsewhere in sysfs to the GPIO sysfs node. Drivers can
use this to provide the interface under their own device in sysfs with
a descriptive name.
Drivers can use gpiod_sysfs_set_active_low() to hide GPIO line polarity
differences between boards from user space. Polarity change can be done both
before and after gpiod_export(), and previously enabled poll(2) support for
either rising or falling edge will be reconfigured to follow this setting.

2
Documentation/kernel-parameters.txt
View File

@ -1529,6 +1529,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
* atapi_dmadir: Enable ATAPI DMADIR bridge support
* disable: Disable this device.
If there are multiple matching configurations changing
the same attribute, the last one is used.

18
Documentation/mic/mpssd/mpssd.c
View File

@ -313,7 +313,7 @@ static struct mic_device_desc *get_device_desc(struct mic_info *mic, int type)
int i;
void *dp = get_dp(mic, type);
for (i = mic_aligned_size(struct mic_bootparam); i < PAGE_SIZE;
for (i = sizeof(struct mic_bootparam); i < PAGE_SIZE;
i += mic_total_desc_size(d)) {
d = dp + i;
@ -445,8 +445,8 @@ init_vr(struct mic_info *mic, int fd, int type,
__func__, mic->name, vr0->va, vr0->info, vr_size,
vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN));
mpsslog("magic 0x%x expected 0x%x\n",
vr0->info->magic, MIC_MAGIC + type);
assert(vr0->info->magic == MIC_MAGIC + type);
le32toh(vr0->info->magic), MIC_MAGIC + type);
assert(le32toh(vr0->info->magic) == MIC_MAGIC + type);
if (vr1) {
vr1->va = (struct mic_vring *)
&va[MIC_DEVICE_PAGE_END + vr_size];
@ -458,8 +458,8 @@ init_vr(struct mic_info *mic, int fd, int type,
__func__, mic->name, vr1->va, vr1->info, vr_size,
vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN));
mpsslog("magic 0x%x expected 0x%x\n",
vr1->info->magic, MIC_MAGIC + type + 1);
assert(vr1->info->magic == MIC_MAGIC + type + 1);
le32toh(vr1->info->magic), MIC_MAGIC + type + 1);
assert(le32toh(vr1->info->magic) == MIC_MAGIC + type + 1);
}
done:
return va;
@ -520,7 +520,7 @@ static void *
virtio_net(void *arg)
{
static __u8 vnet_hdr[2][sizeof(struct virtio_net_hdr)];
static __u8 vnet_buf[2][MAX_NET_PKT_SIZE] __aligned(64);
static __u8 vnet_buf[2][MAX_NET_PKT_SIZE] __attribute__ ((aligned(64)));
struct iovec vnet_iov[2][2] = {
{ { .iov_base = vnet_hdr[0], .iov_len = sizeof(vnet_hdr[0]) },
{ .iov_base = vnet_buf[0], .iov_len = sizeof(vnet_buf[0]) } },
@ -1412,6 +1412,12 @@ mic_config(void *arg)
}
do {
ret = lseek(fd, 0, SEEK_SET);
if (ret < 0) {
mpsslog("%s: Failed to seek to file start '%s': %s\n",
mic->name, pathname, strerror(errno));
goto close_error1;
}
ret = read(fd, value, sizeof(value));
if (ret < 0) {
mpsslog("%s: Failed to read sysfs entry '%s': %s\n",

240
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@ -0,0 +1,240 @@
==============================
KERNEL MODULE SIGNING FACILITY
==============================
CONTENTS
- Overview.
- Configuring module signing.
- Generating signing keys.
- Public keys in the kernel.
- Manually signing modules.
- Signed modules and stripping.
- Loading signed modules.
- Non-valid signatures and unsigned modules.
- Administering/protecting the private key.
========
OVERVIEW
========
The kernel module signing facility cryptographically signs modules during
installation and then checks the signature upon loading the module. This
allows increased kernel security by disallowing the loading of unsigned modules
or modules signed with an invalid key. Module signing increases security by
making it harder to load a malicious module into the kernel. The module
signature checking is done by the kernel so that it is not necessary to have
trusted userspace bits.
This facility uses X.509 ITU-T standard certificates to encode the public keys
involved. The signatures are not themselves encoded in any industrial standard
type. The facility currently only supports the RSA public key encryption
standard (though it is pluggable and permits others to be used). The possible
hash algorithms that can be used are SHA-1, SHA-224, SHA-256, SHA-384, and
SHA-512 (the algorithm is selected by data in the signature).
==========================
CONFIGURING MODULE SIGNING
==========================
The module signing facility is enabled by going to the "Enable Loadable Module
Support" section of the kernel configuration and turning on
CONFIG_MODULE_SIG "Module signature verification"
This has a number of options available:
(1) "Require modules to be validly signed" (CONFIG_MODULE_SIG_FORCE)
This specifies how the kernel should deal with a module that has a
signature for which the key is not known or a module that is unsigned.
If this is off (ie. "permissive"), then modules for which the key is not
available and modules that are unsigned are permitted, but the kernel will
be marked as being tainted.
If this is on (ie. "restrictive"), only modules that have a valid
signature that can be verified by a public key in the kernel's possession
will be loaded. All other modules will generate an error.
Irrespective of the setting here, if the module has a signature block that
cannot be parsed, it will be rejected out of hand.
(2) "Automatically sign all modules" (CONFIG_MODULE_SIG_ALL)
If this is on then modules will be automatically signed during the
modules_install phase of a build. If this is off, then the modules must
be signed manually using:
scripts/sign-file
(3) "Which hash algorithm should modules be signed with?"
This presents a choice of which hash algorithm the installation phase will
sign the modules with:
CONFIG_SIG_SHA1 "Sign modules with SHA-1"
CONFIG_SIG_SHA224 "Sign modules with SHA-224"
CONFIG_SIG_SHA256 "Sign modules with SHA-256"
CONFIG_SIG_SHA384 "Sign modules with SHA-384"
CONFIG_SIG_SHA512 "Sign modules with SHA-512"
The algorithm selected here will also be built into the kernel (rather
than being a module) so that modules signed with that algorithm can have
their signatures checked without causing a dependency loop.
=======================
GENERATING SIGNING KEYS
=======================
Cryptographic keypairs are required to generate and check signatures. A
private key is used to generate a signature and the corresponding public key is
used to check it. The private key is only needed during the build, after which
it can be deleted or stored securely. The public key gets built into the
kernel so that it can be used to check the signatures as the modules are
loaded.
Under normal conditions, the kernel build will automatically generate a new
keypair using openssl if one does not exist in the files:
signing_key.priv
signing_key.x509
during the building of vmlinux (the public part of the key needs to be built
into vmlinux) using parameters in the:
x509.genkey
file (which is also generated if it does not already exist).
It is strongly recommended that you provide your own x509.genkey file.
Most notably, in the x509.genkey file, the req_distinguished_name section
should be altered from the default:
[ req_distinguished_name ]
O = Magrathea
CN = Glacier signing key
emailAddress = slartibartfast@magrathea.h2g2
The generated RSA key size can also be set with:
[ req ]
default_bits = 4096
It is also possible to manually generate the key private/public files using the
x509.genkey key generation configuration file in the root node of the Linux
kernel sources tree and the openssl command. The following is an example to
generate the public/private key files:
openssl req -new -nodes -utf8 -sha256 -days 36500 -batch -x509 \
-config x509.genkey -outform DER -out signing_key.x509 \
-keyout signing_key.priv
=========================
PUBLIC KEYS IN THE KERNEL
=========================
The kernel contains a ring of public keys that can be viewed by root. They're
in a keyring called ".system_keyring" that can be seen by:
[root@deneb ~]# cat /proc/keys
...
223c7853 I------ 1 perm 1f030000 0 0 keyring .system_keyring: 1
302d2d52 I------ 1 perm 1f010000 0 0 asymmetri Fedora kernel signing key: d69a84e6bce3d216b979e9505b3e3ef9a7118079: X509.RSA a7118079 []
...
Beyond the public key generated specifically for module signing, any file
placed in the kernel source root directory or the kernel build root directory
whose name is suffixed with ".x509" will be assumed to be an X.509 public key
and will be added to the keyring.
Further, the architecture code may take public keys from a hardware store and
add those in also (e.g. from the UEFI key database).
Finally, it is possible to add additional public keys by doing:
keyctl padd asymmetric "" [.system_keyring-ID] <[key-file]
e.g.:
keyctl padd asymmetric "" 0x223c7853 <my_public_key.x509
Note, however, that the kernel will only permit keys to be added to
.system_keyring _if_ the new key's X.509 wrapper is validly signed by a key
that is already resident in the .system_keyring at the time the key was added.
=========================
MANUALLY SIGNING MODULES
=========================
To manually sign a module, use the scripts/sign-file tool available in
the Linux kernel source tree. The script requires 4 arguments:
1. The hash algorithm (e.g., sha256)
2. The private key filename
3. The public key filename
4. The kernel module to be signed
The following is an example to sign a kernel module:
scripts/sign-file sha512 kernel-signkey.priv \
kernel-signkey.x509 module.ko
The hash algorithm used does not have to match the one configured, but if it
doesn't, you should make sure that hash algorithm is either built into the
kernel or can be loaded without requiring itself.
============================
SIGNED MODULES AND STRIPPING
============================
A signed module has a digital signature simply appended at the end. The string
"~Module signature appended~." at the end of the module's file confirms that a
signature is present but it does not confirm that the signature is valid!
Signed modules are BRITTLE as the signature is outside of the defined ELF
container. Thus they MAY NOT be stripped once the signature is computed and
attached. Note the entire module is the signed payload, including any and all
debug information present at the time of signing.
======================
LOADING SIGNED MODULES
======================
Modules are loaded with insmod, modprobe, init_module() or finit_module(),
exactly as for unsigned modules as no processing is done in userspace. The
signature checking is all done within the kernel.
=========================================
NON-VALID SIGNATURES AND UNSIGNED MODULES
=========================================
If CONFIG_MODULE_SIG_FORCE is enabled or enforcemodulesig=1 is supplied on
the kernel command line, the kernel will only load validly signed modules
for which it has a public key. Otherwise, it will also load modules that are
unsigned. Any module for which the kernel has a key, but which proves to have
a signature mismatch will not be permitted to load.
Any module that has an unparseable signature will be rejected.
=========================================
ADMINISTERING/PROTECTING THE PRIVATE KEY
=========================================
Since the private key is used to sign modules, viruses and malware could use
the private key to sign modules and compromise the operating system. The
private key must be either destroyed or moved to a secure location and not kept
in the root node of the kernel source tree.

8
Documentation/networking/ip-sysctl.txt
View File

@ -16,8 +16,12 @@ ip_default_ttl - INTEGER
Default: 64 (as recommended by RFC1700)
ip_no_pmtu_disc - BOOLEAN
Disable Path MTU Discovery.
default FALSE
Disable Path MTU Discovery. If enabled and a
fragmentation-required ICMP is received, the PMTU to this
destination will be set to min_pmtu (see below). You will need
to raise min_pmtu to the smallest interface MTU on your system
manually if you want to avoid locally generated fragments.
Default: FALSE
min_pmtu - INTEGER
default 552 - minimum discovered Path MTU

10
Documentation/networking/packet_mmap.txt
View File

@ -123,6 +123,16 @@ Transmission process is similar to capture as shown below.
[shutdown] close() --------> destruction of the transmission socket and
deallocation of all associated resources.
Socket creation and destruction is also straight forward, and is done
the same way as in capturing described in the previous paragraph:
int fd = socket(PF_PACKET, mode, 0);
The protocol can optionally be 0 in case we only want to transmit
via this socket, which avoids an expensive call to packet_rcv().
In this case, you also need to bind(2) the TX_RING with sll_protocol = 0
set. Otherwise, htons(ETH_P_ALL) or any other protocol, for example.
Binding the socket to your network interface is mandatory (with zero copy) to
know the header size of frames used in the circular buffer.

109
MAINTAINERS
View File

@ -893,19 +893,14 @@ F: arch/arm/include/asm/hardware/dec21285.h
F: arch/arm/mach-footbridge/
ARM/FREESCALE IMX / MXC ARM ARCHITECTURE
M: Shawn Guo <shawn.guo@linaro.org>
M: Sascha Hauer <kernel@pengutronix.de>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
T: git git://git.pengutronix.de/git/imx/linux-2.6.git
F: arch/arm/mach-imx/
F: arch/arm/configs/imx*_defconfig
ARM/FREESCALE IMX6
M: Shawn Guo <shawn.guo@linaro.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
T: git git://git.linaro.org/people/shawnguo/linux-2.6.git
F: arch/arm/mach-imx/*imx6*
F: arch/arm/mach-imx/
F: arch/arm/boot/dts/imx*
F: arch/arm/configs/imx*_defconfig
ARM/FREESCALE MXS ARM ARCHITECTURE
M: Shawn Guo <shawn.guo@linaro.org>
@ -1013,6 +1008,8 @@ M: Santosh Shilimkar <santosh.shilimkar@ti.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-keystone/
F: drivers/clk/keystone/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git
ARM/LOGICPD PXA270 MACHINE SUPPORT
M: Lennert Buytenhek <kernel@wantstofly.org>
@ -1934,7 +1931,8 @@ S: Maintained
F: drivers/gpio/gpio-bt8xx.c
BTRFS FILE SYSTEM
M: Chris Mason <chris.mason@fusionio.com>
M: Chris Mason <clm@fb.com>
M: Josef Bacik <jbacik@fb.com>
L: linux-btrfs@vger.kernel.org
W: http://btrfs.wiki.kernel.org/
Q: http://patchwork.kernel.org/project/linux-btrfs/list/
@ -2137,11 +2135,17 @@ S: Maintained
F: Documentation/zh_CN/
CHIPIDEA USB HIGH SPEED DUAL ROLE CONTROLLER
M: Alexander Shishkin <alexander.shishkin@linux.intel.com>
M: Peter Chen <Peter.Chen@freescale.com>
T: git://github.com/hzpeterchen/linux-usb.git
L: linux-usb@vger.kernel.org
S: Maintained
F: drivers/usb/chipidea/
CHROME HARDWARE PLATFORM SUPPORT
M: Olof Johansson <olof@lixom.net>
S: Maintained
F: drivers/platform/chrome/
CISCO VIC ETHERNET NIC DRIVER
M: Christian Benvenuti <benve@cisco.com>
M: Sujith Sankar <ssujith@cisco.com>
@ -3759,9 +3763,11 @@ F: include/uapi/linux/gigaset_dev.h
GPIO SUBSYSTEM
M: Linus Walleij <linus.walleij@linaro.org>
S: Maintained
M: Alexandre Courbot <gnurou@gmail.com>
L: linux-gpio@vger.kernel.org
F: Documentation/gpio.txt
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git
S: Maintained
F: Documentation/gpio/
F: drivers/gpio/
F: include/linux/gpio*
F: include/asm-generic/gpio.h
@ -3829,6 +3835,12 @@ T: git git://linuxtv.org/media_tree.git
S: Maintained
F: drivers/media/usb/gspca/
GUID PARTITION TABLE (GPT)
M: Davidlohr Bueso <davidlohr@hp.com>
L: linux-efi@vger.kernel.org
S: Maintained
F: block/partitions/efi.*
STK1160 USB VIDEO CAPTURE DRIVER
M: Ezequiel Garcia <elezegarcia@gmail.com>
L: linux-media@vger.kernel.org
@ -4038,12 +4050,26 @@ W: http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi
S: Maintained
F: fs/hpfs/
HSI SUBSYSTEM
M: Sebastian Reichel <sre@debian.org>
S: Maintained
F: Documentation/ABI/testing/sysfs-bus-hsi
F: drivers/hsi/
F: include/linux/hsi/
F: include/uapi/linux/hsi/
HSO 3G MODEM DRIVER
M: Jan Dumon <j.dumon@option.com>
W: http://www.pharscape.org
S: Maintained
F: drivers/net/usb/hso.c
HSR NETWORK PROTOCOL
M: Arvid Brodin <arvid.brodin@alten.se>
L: netdev@vger.kernel.org
S: Maintained
F: net/hsr/
HTCPEN TOUCHSCREEN DRIVER
M: Pau Oliva Fora <pof@eslack.org>
L: linux-input@vger.kernel.org
@ -4450,10 +4476,8 @@ M: Bruce Allan <bruce.w.allan@intel.com>
M: Carolyn Wyborny <carolyn.wyborny@intel.com>
M: Don Skidmore <donald.c.skidmore@intel.com>
M: Greg Rose <gregory.v.rose@intel.com>
M: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
M: Alex Duyck <alexander.h.duyck@intel.com>
M: John Ronciak <john.ronciak@intel.com>
M: Tushar Dave <tushar.n.dave@intel.com>
L: e1000-devel@lists.sourceforge.net
W: http://www.intel.com/support/feedback.htm
W: http://e1000.sourceforge.net/
@ -5256,7 +5280,7 @@ S: Maintained
F: Documentation/lockdep*.txt
F: Documentation/lockstat.txt
F: include/linux/lockdep.h
F: kernel/lockdep*
F: kernel/locking/
LOGICAL DISK MANAGER SUPPORT (LDM, Windows 2000/XP/Vista Dynamic Disks)
M: "Richard Russon (FlatCap)" <ldm@flatcap.org>
@ -5897,12 +5921,21 @@ M: Steffen Klassert <steffen.klassert@secunet.com>
M: Herbert Xu <herbert@gondor.apana.org.au>
M: "David S. Miller" <davem@davemloft.net>
L: netdev@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next.git
S: Maintained
F: net/xfrm/
F: net/key/
F: net/ipv4/xfrm*
F: net/ipv4/esp4.c
F: net/ipv4/ah4.c
F: net/ipv4/ipcomp.c
F: net/ipv4/ip_vti.c
F: net/ipv6/xfrm*
F: net/ipv6/esp6.c
F: net/ipv6/ah6.c
F: net/ipv6/ipcomp6.c
F: net/ipv6/ip6_vti.c
F: include/uapi/linux/xfrm.h
F: include/net/xfrm.h
@ -5968,10 +6001,10 @@ F: drivers/nfc/
F: include/linux/platform_data/pn544.h
NFS, SUNRPC, AND LOCKD CLIENTS
M: Trond Myklebust <Trond.Myklebust@netapp.com>
M: Trond Myklebust <trond.myklebust@primarydata.com>
L: linux-nfs@vger.kernel.org
W: http://client.linux-nfs.org
T: git git://git.linux-nfs.org/pub/linux/nfs-2.6.git
T: git git://git.linux-nfs.org/projects/trondmy/linux-nfs.git
S: Maintained
F: fs/lockd/
F: fs/nfs/
@ -6238,8 +6271,8 @@ OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
M: Rob Herring <rob.herring@calxeda.com>
M: Pawel Moll <pawel.moll@arm.com>
M: Mark Rutland <mark.rutland@arm.com>
M: Stephen Warren <swarren@wwwdotorg.org>
M: Ian Campbell <ijc+devicetree@hellion.org.uk>
M: Kumar Gala <galak@codeaurora.org>
L: devicetree@vger.kernel.org
S: Maintained
F: Documentation/devicetree/
@ -6449,19 +6482,52 @@ F: drivers/pci/
F: include/linux/pci*
F: arch/x86/pci/
PCI DRIVER FOR IMX6
M: Richard Zhu <r65037@freescale.com>
M: Shawn Guo <shawn.guo@linaro.org>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: drivers/pci/host/*imx6*
PCI DRIVER FOR MVEBU (Marvell Armada 370 and Armada XP SOC support)
M: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
M: Jason Cooper <jason@lakedaemon.net>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: drivers/pci/host/*mvebu*
PCI DRIVER FOR NVIDIA TEGRA
M: Thierry Reding <thierry.reding@gmail.com>
L: linux-tegra@vger.kernel.org
L: linux-pci@vger.kernel.org
S: Supported
F: Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
F: drivers/pci/host/pci-tegra.c
PCI DRIVER FOR RENESAS R-CAR
M: Simon Horman <horms@verge.net.au>
L: linux-pci@vger.kernel.org
L: linux-sh@vger.kernel.org
S: Maintained
F: drivers/pci/host/*rcar*
PCI DRIVER FOR SAMSUNG EXYNOS
M: Jingoo Han <jg1.han@samsung.com>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
S: Maintained
F: drivers/pci/host/pci-exynos.c
PCI DRIVER FOR SYNOPSIS DESIGNWARE
M: Mohit Kumar <mohit.kumar@st.com>
M: Jingoo Han <jg1.han@samsung.com>
L: linux-pci@vger.kernel.org
S: Maintained
F: drivers/pci/host/*designware*
PCMCIA SUBSYSTEM
P: Linux PCMCIA Team
L: linux-pcmcia@lists.infradead.org
@ -7380,7 +7446,6 @@ S: Maintained
F: kernel/sched/
F: include/linux/sched.h
F: include/uapi/linux/sched.h
F: kernel/wait.c
F: include/linux/wait.h
SCORE ARCHITECTURE
@ -9525,7 +9590,7 @@ F: drivers/xen/*swiotlb*
XFS FILESYSTEM
P: Silicon Graphics Inc
M: Dave Chinner <dchinner@fromorbit.com>
M: Dave Chinner <david@fromorbit.com>
M: Ben Myers <bpm@sgi.com>
M: xfs@oss.sgi.com
L: xfs@oss.sgi.com

24
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 13
SUBLEVEL = 0
EXTRAVERSION = -rc1
EXTRAVERSION = -rc6
NAME = One Giant Leap for Frogkind
# *DOCUMENTATION*
@ -732,19 +732,15 @@ export mod_strip_cmd
# Select initial ramdisk compression format, default is gzip(1).
# This shall be used by the dracut(8) tool while creating an initramfs image.
#
INITRD_COMPRESS=gzip
ifeq ($(CONFIG_RD_BZIP2), y)
INITRD_COMPRESS=bzip2
else ifeq ($(CONFIG_RD_LZMA), y)
INITRD_COMPRESS=lzma
else ifeq ($(CONFIG_RD_XZ), y)
INITRD_COMPRESS=xz
else ifeq ($(CONFIG_RD_LZO), y)
INITRD_COMPRESS=lzo
else ifeq ($(CONFIG_RD_LZ4), y)
INITRD_COMPRESS=lz4
endif
export INITRD_COMPRESS
INITRD_COMPRESS-y := gzip
INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2
INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma
INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz
INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo
INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4
# do not export INITRD_COMPRESS, since we didn't actually
# choose a sane default compression above.
# export INITRD_COMPRESS := $(INITRD_COMPRESS-y)
ifdef CONFIG_MODULE_SIG_ALL
MODSECKEY = ./signing_key.priv

1
arch/arc/Kconfig
View File

@ -8,6 +8,7 @@
config ARC
def_bool y
select BUILDTIME_EXTABLE_SORT
select CLONE_BACKWARDS
# ARC Busybox based initramfs absolutely relies on DEVTMPFS for /dev
select DEVTMPFS if !INITRAMFS_SOURCE=""

11
arch/arc/include/uapi/asm/unistd.h
View File

@ -8,6 +8,13 @@
/******** no-legacy-syscalls-ABI *******/
/*
* Non-typical guard macro to enable inclusion twice in ARCH sys.c
* That is how the Generic syscall wrapper generator works
*/
#if !defined(_UAPI_ASM_ARC_UNISTD_H) || defined(__SYSCALL)
#define _UAPI_ASM_ARC_UNISTD_H
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_CLONE
#define __ARCH_WANT_SYS_VFORK
@ -32,3 +39,7 @@ __SYSCALL(__NR_arc_gettls, sys_arc_gettls)
/* Generic syscall (fs/filesystems.c - lost in asm-generic/unistd.h */
#define __NR_sysfs (__NR_arch_specific_syscall + 3)
__SYSCALL(__NR_sysfs, sys_sysfs)
#undef __SYSCALL
#endif

4
arch/arc/kernel/perf_event.c
View File

@ -79,9 +79,9 @@ static int arc_pmu_cache_event(u64 config)
cache_result = (config >> 16) & 0xff;
if (cache_type >= PERF_COUNT_HW_CACHE_MAX)
return -EINVAL;
if (cache_type >= PERF_COUNT_HW_CACHE_OP_MAX)
if (cache_op >= PERF_COUNT_HW_CACHE_OP_MAX)
return -EINVAL;
if (cache_type >= PERF_COUNT_HW_CACHE_RESULT_MAX)
if (cache_result >= PERF_COUNT_HW_CACHE_RESULT_MAX)
return -EINVAL;
ret = arc_pmu_cache_map[cache_type][cache_op][cache_result];

79
arch/arm/boot/dts/am335x-base0033.dts
View File

@ -13,4 +13,83 @@
/ {
model = "IGEP COM AM335x on AQUILA Expansion";
compatible = "isee,am335x-base0033", "isee,am335x-igep0033", "ti,am33xx";
hdmi {
compatible = "ti,tilcdc,slave";
i2c = <&i2c0>;
pinctrl-names = "default", "off";
pinctrl-0 = <&nxp_hdmi_pins>;
pinctrl-1 = <&nxp_hdmi_off_pins>;
status = "okay";
};
leds_base {
pinctrl-names = "default";
pinctrl-0 = <&leds_base_pins>;
compatible = "gpio-leds";
led@0 {
label = "base:red:user";
gpios = <&gpio1 21 GPIO_ACTIVE_HIGH>; /* gpio1_21 */
default-state = "off";
};
led@1 {
label = "base:green:user";
gpios = <&gpio2 0 GPIO_ACTIVE_HIGH>; /* gpio2_0 */
default-state = "off";
};
};
};
&am33xx_pinmux {
nxp_hdmi_pins: pinmux_nxp_hdmi_pins {
pinctrl-single,pins = <
0x1b0 (PIN_OUTPUT | MUX_MODE3) /* xdma_event_intr0.clkout1 */
0xa0 (PIN_OUTPUT | MUX_MODE0) /* lcd_data0 */
0xa4 (PIN_OUTPUT | MUX_MODE0) /* lcd_data1 */
0xa8 (PIN_OUTPUT | MUX_MODE0) /* lcd_data2 */
0xac (PIN_OUTPUT | MUX_MODE0) /* lcd_data3 */
0xb0 (PIN_OUTPUT | MUX_MODE0) /* lcd_data4 */
0xb4 (PIN_OUTPUT | MUX_MODE0) /* lcd_data5 */
0xb8 (PIN_OUTPUT | MUX_MODE0) /* lcd_data6 */
0xbc (PIN_OUTPUT | MUX_MODE0) /* lcd_data7 */
0xc0 (PIN_OUTPUT | MUX_MODE0) /* lcd_data8 */
0xc4 (PIN_OUTPUT | MUX_MODE0) /* lcd_data9 */
0xc8 (PIN_OUTPUT | MUX_MODE0) /* lcd_data10 */
0xcc (PIN_OUTPUT | MUX_MODE0) /* lcd_data11 */
0xd0 (PIN_OUTPUT | MUX_MODE0) /* lcd_data12 */
0xd4 (PIN_OUTPUT | MUX_MODE0) /* lcd_data13 */
0xd8 (PIN_OUTPUT | MUX_MODE0) /* lcd_data14 */
0xdc (PIN_OUTPUT | MUX_MODE0) /* lcd_data15 */
0xe0 (PIN_OUTPUT | MUX_MODE0) /* lcd_vsync */
0xe4 (PIN_OUTPUT | MUX_MODE0) /* lcd_hsync */
0xe8 (PIN_OUTPUT | MUX_MODE0) /* lcd_pclk */
0xec (PIN_OUTPUT | MUX_MODE0) /* lcd_ac_bias_en */
>;
};
nxp_hdmi_off_pins: pinmux_nxp_hdmi_off_pins {
pinctrl-single,pins = <
0x1b0 (PIN_OUTPUT | MUX_MODE3) /* xdma_event_intr0.clkout1 */
>;
};
leds_base_pins: pinmux_leds_base_pins {
pinctrl-single,pins = <
0x54 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a5.gpio1_21 */
0x88 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_csn3.gpio2_0 */
>;
};
};
&lcdc {
status = "okay";
};
&i2c0 {
eeprom: eeprom@50 {
compatible = "at,24c256";
reg = <0x50>;
};
};

29
arch/arm/boot/dts/am335x-igep0033.dtsi
View File

@ -199,6 +199,35 @@ &uart0 {
pinctrl-0 = <&uart0_pins>;
};
&usb {
status = "okay";
control@44e10000 {
status = "okay";
};
usb-phy@47401300 {
status = "okay";
};
usb-phy@47401b00 {
status = "okay";
};
usb@47401000 {
status = "okay";
};
usb@47401800 {
status = "okay";
dr_mode = "host";
};
dma-controller@07402000 {
status = "okay";
};
};
#include "tps65910.dtsi"
&tps {

6
arch/arm/boot/dts/am3517-evm.dts
View File

@ -7,11 +7,11 @@
*/
/dts-v1/;
#include "omap34xx.dtsi"
#include "am3517.dtsi"
/ {
model = "TI AM3517 EVM (AM3517/05)";
compatible = "ti,am3517-evm", "ti,omap3";
model = "TI AM3517 EVM (AM3517/05 TMDSEVM3517)";
compatible = "ti,am3517-evm", "ti,am3517", "ti,omap3";
memory {
device_type = "memory";

63
arch/arm/boot/dts/am3517.dtsi Normal file
View File

@ -0,0 +1,63 @@
/*
* Device Tree Source for am3517 SoC
*
* Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#include "omap3.dtsi"
/ {
aliases {
serial3 = &uart4;
};
ocp {
am35x_otg_hs: am35x_otg_hs@5c040000 {
compatible = "ti,omap3-musb";
ti,hwmods = "am35x_otg_hs";
status = "disabled";
reg = <0x5c040000 0x1000>;
interrupts = <71>;
interrupt-names = "mc";
};
davinci_emac: ethernet@0x5c000000 {
compatible = "ti,am3517-emac";
ti,hwmods = "davinci_emac";
status = "disabled";
reg = <0x5c000000 0x30000>;
interrupts = <67 68 69 70>;
ti,davinci-ctrl-reg-offset = <0x10000>;
ti,davinci-ctrl-mod-reg-offset = <0>;
ti,davinci-ctrl-ram-offset = <0x20000>;
ti,davinci-ctrl-ram-size = <0x2000>;
ti,davinci-rmii-en = /bits/ 8 <1>;
local-mac-address = [ 00 00 00 00 00 00 ];
};
davinci_mdio: ethernet@0x5c030000 {
compatible = "ti,davinci_mdio";
ti,hwmods = "davinci_mdio";
status = "disabled";
reg = <0x5c030000 0x1000>;
bus_freq = <1000000>;
#address-cells = <1>;
#size-cells = <0>;
};
uart4: serial@4809e000 {
compatible = "ti,omap3-uart";
ti,hwmods = "uart4";
status = "disabled";
reg = <0x4809e000 0x400>;
interrupts = <84>;
dmas = <&sdma 55 &sdma 54>;
dma-names = "tx", "rx";
clock-frequency = <48000000>;
};
};
};

28
arch/arm/boot/dts/armada-370-db.dts
View File

@ -99,22 +99,22 @@ spi-flash@0 {
spi-max-frequency = <50000000>;
};
};
};
pcie-controller {
pcie-controller {
status = "okay";
/*
* The two PCIe units are accessible through
* both standard PCIe slots and mini-PCIe
* slots on the board.
*/
pcie@1,0 {
/* Port 0, Lane 0 */
status = "okay";
};
pcie@2,0 {
/* Port 1, Lane 0 */
status = "okay";
/*
* The two PCIe units are accessible through
* both standard PCIe slots and mini-PCIe
* slots on the board.
*/
pcie@1,0 {
/* Port 0, Lane 0 */
status = "okay";
};
pcie@2,0 {
/* Port 1, Lane 0 */
status = "okay";
};
};
};
};

2
arch/arm/boot/dts/armada-370-xp.dtsi
View File

@ -118,7 +118,7 @@ mpic: interrupt-controller@20000 {
coherency-fabric@20200 {
compatible = "marvell,coherency-fabric";
reg = <0x20200 0xb0>, <0x21810 0x1c>;
reg = <0x20200 0xb0>, <0x21010 0x1c>;
};
serial@12000 {

24
arch/arm/boot/dts/armada-xp-mv78230.dtsi
View File

@ -47,7 +47,7 @@ soc {
/*
* MV78230 has 2 PCIe units Gen2.0: One unit can be
* configured as x4 or quad x1 lanes. One unit is
* x4/x1.
* x1 only.
*/
pcie-controller {
compatible = "marvell,armada-xp-pcie";
@ -62,10 +62,10 @@ pcie-controller {
ranges =
<0x82000000 0 0x40000 MBUS_ID(0xf0, 0x01) 0x40000 0 0x00002000 /* Port 0.0 registers */
0x82000000 0 0x42000 MBUS_ID(0xf0, 0x01) 0x42000 0 0x00002000 /* Port 2.0 registers */
0x82000000 0 0x44000 MBUS_ID(0xf0, 0x01) 0x44000 0 0x00002000 /* Port 0.1 registers */
0x82000000 0 0x48000 MBUS_ID(0xf0, 0x01) 0x48000 0 0x00002000 /* Port 0.2 registers */
0x82000000 0 0x4c000 MBUS_ID(0xf0, 0x01) 0x4c000 0 0x00002000 /* Port 0.3 registers */
0x82000000 0 0x80000 MBUS_ID(0xf0, 0x01) 0x80000 0 0x00002000 /* Port 1.0 registers */
0x82000000 0x1 0 MBUS_ID(0x04, 0xe8) 0 1 0 /* Port 0.0 MEM */
0x81000000 0x1 0 MBUS_ID(0x04, 0xe0) 0 1 0 /* Port 0.0 IO */
0x82000000 0x2 0 MBUS_ID(0x04, 0xd8) 0 1 0 /* Port 0.1 MEM */
@ -74,8 +74,8 @@ pcie-controller {
0x81000000 0x3 0 MBUS_ID(0x04, 0xb0) 0 1 0 /* Port 0.2 IO */
0x82000000 0x4 0 MBUS_ID(0x04, 0x78) 0 1 0 /* Port 0.3 MEM */
0x81000000 0x4 0 MBUS_ID(0x04, 0x70) 0 1 0 /* Port 0.3 IO */
0x82000000 0x9 0 MBUS_ID(0x04, 0xf8) 0 1 0 /* Port 2.0 MEM */
0x81000000 0x9 0 MBUS_ID(0x04, 0xf0) 0 1 0 /* Port 2.0 IO */>;
0x82000000 0x5 0 MBUS_ID(0x08, 0xe8) 0 1 0 /* Port 1.0 MEM */
0x81000000 0x5 0 MBUS_ID(0x08, 0xe0) 0 1 0 /* Port 1.0 IO */>;
pcie@1,0 {
device_type = "pci";
@ -145,20 +145,20 @@ pcie@4,0 {
status = "disabled";
};
pcie@9,0 {
pcie@5,0 {
device_type = "pci";
assigned-addresses = <0x82000800 0 0x42000 0 0x2000>;
reg = <0x4800 0 0 0 0>;
assigned-addresses = <0x82000800 0 0x80000 0 0x2000>;
reg = <0x2800 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x9 0 1 0
0x81000000 0 0 0x81000000 0x9 0 1 0>;
ranges = <0x82000000 0 0 0x82000000 0x5 0 1 0
0x81000000 0 0 0x81000000 0x5 0 1 0>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 99>;
marvell,pcie-port = <2>;
interrupt-map = <0 0 0 0 &mpic 62>;
marvell,pcie-port = <1>;
marvell,pcie-lane = <0>;
clocks = <&gateclk 26>;
clocks = <&gateclk 9>;
status = "disabled";
};
};

111
arch/arm/boot/dts/armada-xp-mv78260.dtsi
View File

@ -48,7 +48,7 @@ soc {
/*
* MV78260 has 3 PCIe units Gen2.0: Two units can be
* configured as x4 or quad x1 lanes. One unit is
* x4/x1.
* x4 only.
*/
pcie-controller {
compatible = "marvell,armada-xp-pcie";
@ -68,7 +68,9 @@ pcie-controller {
0x82000000 0 0x48000 MBUS_ID(0xf0, 0x01) 0x48000 0 0x00002000 /* Port 0.2 registers */
0x82000000 0 0x4c000 MBUS_ID(0xf0, 0x01) 0x4c000 0 0x00002000 /* Port 0.3 registers */
0x82000000 0 0x80000 MBUS_ID(0xf0, 0x01) 0x80000 0 0x00002000 /* Port 1.0 registers */
0x82000000 0 0x82000 MBUS_ID(0xf0, 0x01) 0x82000 0 0x00002000 /* Port 3.0 registers */
0x82000000 0 0x84000 MBUS_ID(0xf0, 0x01) 0x84000 0 0x00002000 /* Port 1.1 registers */
0x82000000 0 0x88000 MBUS_ID(0xf0, 0x01) 0x88000 0 0x00002000 /* Port 1.2 registers */
0x82000000 0 0x8c000 MBUS_ID(0xf0, 0x01) 0x8c000 0 0x00002000 /* Port 1.3 registers */
0x82000000 0x1 0 MBUS_ID(0x04, 0xe8) 0 1 0 /* Port 0.0 MEM */
0x81000000 0x1 0 MBUS_ID(0x04, 0xe0) 0 1 0 /* Port 0.0 IO */
0x82000000 0x2 0 MBUS_ID(0x04, 0xd8) 0 1 0 /* Port 0.1 MEM */
@ -77,10 +79,18 @@ pcie-controller {
0x81000000 0x3 0 MBUS_ID(0x04, 0xb0) 0 1 0 /* Port 0.2 IO */
0x82000000 0x4 0 MBUS_ID(0x04, 0x78) 0 1 0 /* Port 0.3 MEM */
0x81000000 0x4 0 MBUS_ID(0x04, 0x70) 0 1 0 /* Port 0.3 IO */
0x82000000 0x9 0 MBUS_ID(0x08, 0xe8) 0 1 0 /* Port 1.0 MEM */
0x81000000 0x9 0 MBUS_ID(0x08, 0xe0) 0 1 0 /* Port 1.0 IO */
0x82000000 0xa 0 MBUS_ID(0x08, 0xf8) 0 1 0 /* Port 3.0 MEM */
0x81000000 0xa 0 MBUS_ID(0x08, 0xf0) 0 1 0 /* Port 3.0 IO */>;
0x82000000 0x5 0 MBUS_ID(0x08, 0xe8) 0 1 0 /* Port 1.0 MEM */
0x81000000 0x5 0 MBUS_ID(0x08, 0xe0) 0 1 0 /* Port 1.0 IO */
0x82000000 0x6 0 MBUS_ID(0x08, 0xd8) 0 1 0 /* Port 1.1 MEM */
0x81000000 0x6 0 MBUS_ID(0x08, 0xd0) 0 1 0 /* Port 1.1 IO */
0x82000000 0x7 0 MBUS_ID(0x08, 0xb8) 0 1 0 /* Port 1.2 MEM */
0x81000000 0x7 0 MBUS_ID(0x08, 0xb0) 0 1 0 /* Port 1.2 IO */
0x82000000 0x8 0 MBUS_ID(0x08, 0x78) 0 1 0 /* Port 1.3 MEM */
0x81000000 0x8 0 MBUS_ID(0x08, 0x70) 0 1 0 /* Port 1.3 IO */
0x82000000 0x9 0 MBUS_ID(0x04, 0xf8) 0 1 0 /* Port 2.0 MEM */
0x81000000 0x9 0 MBUS_ID(0x04, 0xf0) 0 1 0 /* Port 2.0 IO */>;
pcie@1,0 {
device_type = "pci";
@ -106,8 +116,8 @@ pcie@2,0 {
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
0x81000000 0 0 0x81000000 0x2 0 1 0>;
ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
0x81000000 0 0 0x81000000 0x2 0 1 0>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 59>;
marvell,pcie-port = <0>;
@ -150,6 +160,74 @@ pcie@4,0 {
status = "disabled";
};
pcie@5,0 {
device_type = "pci";
assigned-addresses = <0x82000800 0 0x80000 0 0x2000>;
reg = <0x2800 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x5 0 1 0
0x81000000 0 0 0x81000000 0x5 0 1 0>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 62>;
marvell,pcie-port = <1>;
marvell,pcie-lane = <0>;
clocks = <&gateclk 9>;
status = "disabled";
};
pcie@6,0 {
device_type = "pci";
assigned-addresses = <0x82000800 0 0x84000 0 0x2000>;
reg = <0x3000 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x6 0 1 0
0x81000000 0 0 0x81000000 0x6 0 1 0>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 63>;
marvell,pcie-port = <1>;
marvell,pcie-lane = <1>;
clocks = <&gateclk 10>;
status = "disabled";
};
pcie@7,0 {
device_type = "pci";
assigned-addresses = <0x82000800 0 0x88000 0 0x2000>;
reg = <0x3800 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x7 0 1 0
0x81000000 0 0 0x81000000 0x7 0 1 0>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 64>;
marvell,pcie-port = <1>;
marvell,pcie-lane = <2>;
clocks = <&gateclk 11>;
status = "disabled";
};
pcie@8,0 {
device_type = "pci";
assigned-addresses = <0x82000800 0 0x8c000 0 0x2000>;
reg = <0x4000 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x8 0 1 0
0x81000000 0 0 0x81000000 0x8 0 1 0>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 65>;
marvell,pcie-port = <1>;
marvell,pcie-lane = <3>;
clocks = <&gateclk 12>;
status = "disabled";
};
pcie@9,0 {
device_type = "pci";
assigned-addresses = <0x82000800 0 0x42000 0 0x2000>;
@ -166,23 +244,6 @@ pcie@9,0 {
clocks = <&gateclk 26>;
status = "disabled";
};
pcie@10,0 {
device_type = "pci";
assigned-addresses = <0x82000800 0 0x82000 0 0x2000>;
reg = <0x5000 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0xa 0 1 0
0x81000000 0 0 0x81000000 0xa 0 1 0>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 103>;
marvell,pcie-port = <3>;
marvell,pcie-lane = <0>;
clocks = <&gateclk 27>;
status = "disabled";
};
};
internal-regs {

4
arch/arm/boot/dts/at91sam9x5_usart3.dtsi
View File

@ -11,6 +11,10 @@
#include <dt-bindings/interrupt-controller/irq.h>
/ {
aliases {
serial4 = &usart3;
};
ahb {
apb {
pinctrl@fffff400 {

4
arch/arm/boot/dts/bcm2835.dtsi
View File

@ -85,6 +85,8 @@ i2c0: i2c@20205000 {
reg = <0x7e205000 0x1000>;
interrupts = <2 21>;
clocks = <&clk_i2c>;
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
};
@ -93,6 +95,8 @@ i2c1: i2c@20804000 {
reg = <0x7e804000 0x1000>;
interrupts = <2 21>;
clocks = <&clk_i2c>;
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
};

12
arch/arm/boot/dts/cros5250-common.dtsi
View File

@ -27,6 +27,13 @@ pinctrl@11400000 {
i2c2_bus: i2c2-bus {
samsung,pin-pud = <0>;
};
max77686_irq: max77686-irq {
samsung,pins = "gpx3-2";
samsung,pin-function = <0>;
samsung,pin-pud = <0>;
samsung,pin-drv = <0>;
};
};
i2c@12C60000 {
@ -35,6 +42,11 @@ i2c@12C60000 {
max77686@09 {
compatible = "maxim,max77686";
interrupt-parent = <&gpx3>;
interrupts = <2 0>;
pinctrl-names = "default";
pinctrl-0 = <&max77686_irq>;
wakeup-source;
reg = <0x09>;
voltage-regulators {

2
arch/arm/boot/dts/imx6qdl.dtsi
View File

@ -161,7 +161,7 @@ spdif: spdif@02004000 {
clocks = <&clks 197>, <&clks 3>,
<&clks 197>, <&clks 107>,
<&clks 0>, <&clks 118>,
<&clks 62>, <&clks 139>,
<&clks 0>, <&clks 139>,
<&clks 0>;
clock-names = "core", "rxtx0",
"rxtx1", "rxtx2",

4
arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
View File

@ -44,8 +44,8 @@ ethernet@gpmc {
gpmc,wr-access-ns = <186>;
gpmc,cycle2cycle-samecsen;
gpmc,cycle2cycle-diffcsen;
vmmc-supply = <&vddvario>;
vmmc_aux-supply = <&vdd33a>;
vddvario-supply = <&vddvario>;
vdd33a-supply = <&vdd33a>;
reg-io-width = <4>;
smsc,save-mac-address;
};

2
arch/arm/boot/dts/omap-zoom-common.dtsi
View File

@ -13,7 +13,7 @@ &gpmc {
* they probably share the same GPIO IRQ
* REVISIT: Add timing support from slls644g.pdf
*/
8250@3,0 {
uart@3,0 {
compatible = "ns16550a";
reg = <3 0 0x100>;
bank-width = <2>;

96
arch/arm/boot/dts/omap2.dtsi
View File

@ -9,6 +9,7 @@
*/
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/pinctrl/omap.h>
#include "skeleton.dtsi"
@ -21,6 +22,8 @@ aliases {
serial0 = &uart1;
serial1 = &uart2;
serial2 = &uart3;
i2c0 = &i2c1;
i2c1 = &i2c2;
};
cpus {
@ -53,6 +56,28 @@ ocp {
ranges;
ti,hwmods = "l3_main";
aes: aes@480a6000 {
compatible = "ti,omap2-aes";
ti,hwmods = "aes";
reg = <0x480a6000 0x50>;
dmas = <&sdma 9 &sdma 10>;
dma-names = "tx", "rx";
};
hdq1w: 1w@480b2000 {
compatible = "ti,omap2420-1w";
ti,hwmods = "hdq1w";
reg = <0x480b2000 0x1000>;
interrupts = <58>;
};
mailbox: mailbox@48094000 {
compatible = "ti,omap2-mailbox";
ti,hwmods = "mailbox";
reg = <0x48094000 0x200>;
interrupts = <26>;
};
intc: interrupt-controller@1 {
compatible = "ti,omap2-intc";
interrupt-controller;
@ -63,6 +88,7 @@ intc: interrupt-controller@1 {
sdma: dma-controller@48056000 {
compatible = "ti,omap2430-sdma", "ti,omap2420-sdma";
ti,hwmods = "dma";
reg = <0x48056000 0x1000>;
interrupts = <12>,
<13>,
@ -73,21 +99,91 @@ sdma: dma-controller@48056000 {
#dma-requests = <64>;
};
i2c1: i2c@48070000 {
compatible = "ti,omap2-i2c";
ti,hwmods = "i2c1";
reg = <0x48070000 0x80>;
#address-cells = <1>;
#size-cells = <0>;
interrupts = <56>;
dmas = <&sdma 27 &sdma 28>;
dma-names = "tx", "rx";
};
i2c2: i2c@48072000 {
compatible = "ti,omap2-i2c";
ti,hwmods = "i2c2";
reg = <0x48072000 0x80>;
#address-cells = <1>;
#size-cells = <0>;
interrupts = <57>;
dmas = <&sdma 29 &sdma 30>;
dma-names = "tx", "rx";
};
mcspi1: mcspi@48098000 {
compatible = "ti,omap2-mcspi";
ti,hwmods = "mcspi1";
reg = <0x48098000 0x100>;
interrupts = <65>;
dmas = <&sdma 35 &sdma 36 &sdma 37 &sdma 38
&sdma 39 &sdma 40 &sdma 41 &sdma 42>;
dma-names = "tx0", "rx0", "tx1", "rx1",
"tx2", "rx2", "tx3", "rx3";
};
mcspi2: mcspi@4809a000 {
compatible = "ti,omap2-mcspi";
ti,hwmods = "mcspi2";
reg = <0x4809a000 0x100>;
interrupts = <66>;
dmas = <&sdma 43 &sdma 44 &sdma 45 &sdma 46>;
dma-names = "tx0", "rx0", "tx1", "rx1";
};
rng: rng@480a0000 {
compatible = "ti,omap2-rng";
ti,hwmods = "rng";
reg = <0x480a0000 0x50>;
interrupts = <36>;
};
sham: sham@480a4000 {
compatible = "ti,omap2-sham";
ti,hwmods = "sham";
reg = <0x480a4000 0x64>;
interrupts = <51>;
dmas = <&sdma 13>;
dma-names = "rx";
};
uart1: serial@4806a000 {
compatible = "ti,omap2-uart";
ti,hwmods = "uart1";
reg = <0x4806a000 0x2000>;
interrupts = <72>;
dmas = <&sdma 49 &sdma 50>;
dma-names = "tx", "rx";
clock-frequency = <48000000>;
};
uart2: serial@4806c000 {
compatible = "ti,omap2-uart";
ti,hwmods = "uart2";
reg = <0x4806c000 0x400>;
interrupts = <73>;
dmas = <&sdma 51 &sdma 52>;
dma-names = "tx", "rx";
clock-frequency = <48000000>;
};
uart3: serial@4806e000 {
compatible = "ti,omap2-uart";
ti,hwmods = "uart3";
reg = <0x4806e000 0x400>;
interrupts = <74>;
dmas = <&sdma 53 &sdma 54>;
dma-names = "tx", "rx";
clock-frequency = <48000000>;
};

23
arch/arm/boot/dts/omap2420.dtsi
View File

@ -114,6 +114,15 @@ mcbsp2: mcbsp@48076000 {
dma-names = "tx", "rx";
};
msdi1: mmc@4809c000 {
compatible = "ti,omap2420-mmc";
ti,hwmods = "msdi1";
reg = <0x4809c000 0x80>;
interrupts = <83>;
dmas = <&sdma 61 &sdma 62>;
dma-names = "tx", "rx";
};
timer1: timer@48028000 {
compatible = "ti,omap2420-timer";
reg = <0x48028000 0x400>;
@ -121,5 +130,19 @@ timer1: timer@48028000 {
ti,hwmods = "timer1";
ti,timer-alwon;
};
wd_timer2: wdt@48022000 {
compatible = "ti,omap2-wdt";
ti,hwmods = "wd_timer2";
reg = <0x48022000 0x80>;
};
};
};
&i2c1 {
compatible = "ti,omap2420-i2c";
};
&i2c2 {
compatible = "ti,omap2420-i2c";
};

49
arch/arm/boot/dts/omap2430.dtsi
View File

@ -175,6 +175,25 @@ mcbsp5: mcbsp@48096000 {
dma-names = "tx", "rx";
};
mmc1: mmc@4809c000 {
compatible = "ti,omap2-hsmmc";
reg = <0x4809c000 0x200>;
interrupts = <83>;
ti,hwmods = "mmc1";
ti,dual-volt;
dmas = <&sdma 61>, <&sdma 62>;
dma-names = "tx", "rx";
};
mmc2: mmc@480b4000 {
compatible = "ti,omap2-hsmmc";
reg = <0x480b4000 0x200>;
interrupts = <86>;
ti,hwmods = "mmc2";
dmas = <&sdma 47>, <&sdma 48>;
dma-names = "tx", "rx";
};
timer1: timer@49018000 {
compatible = "ti,omap2420-timer";
reg = <0x49018000 0x400>;
@ -182,5 +201,35 @@ timer1: timer@49018000 {
ti,hwmods = "timer1";
ti,timer-alwon;
};
mcspi3: mcspi@480b8000 {
compatible = "ti,omap2-mcspi";
ti,hwmods = "mcspi3";
reg = <0x480b8000 0x100>;
interrupts = <91>;
dmas = <&sdma 15 &sdma 16 &sdma 23 &sdma 24>;
dma-names = "tx0", "rx0", "tx1", "rx1";
};
usb_otg_hs: usb_otg_hs@480ac000 {
compatible = "ti,omap2-musb";
ti,hwmods = "usb_otg_hs";
reg = <0x480ac000 0x1000>;
interrupts = <93>;
};
wd_timer2: wdt@49016000 {
compatible = "ti,omap2-wdt";
ti,hwmods = "wd_timer2";
reg = <0x49016000 0x80>;
};
};
};
&i2c1 {
compatible = "ti,omap2430-i2c";
};
&i2c2 {
compatible = "ti,omap2430-i2c";
};

7
arch/arm/boot/dts/omap3-beagle-xm.dts
View File

@ -215,3 +215,10 @@ &usbhshost {
&usbhsehci {
phys = <0 &hsusb2_phy>;
};
&vaux2 {
regulator-name = "usb_1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};

21
arch/arm/boot/dts/omap3-beagle.dts
View File

@ -61,6 +61,14 @@ hsusb2_phy: hsusb2_phy {
vcc-supply = <&hsusb2_power>;
};
sound {
compatible = "ti,omap-twl4030";
ti,model = "omap3beagle";
ti,mcbsp = <&mcbsp2>;
ti,codec = <&twl_audio>;
};
gpio_keys {
compatible = "gpio-keys";
@ -120,6 +128,12 @@ twl: twl@48 {
reg = <0x48>;
interrupts = <7>; /* SYS_NIRQ cascaded to intc */
interrupt-parent = <&intc>;
twl_audio: audio {
compatible = "ti,twl4030-audio";
codec {
};
};
};
};
@ -178,3 +192,10 @@ &usb_otg_hs {
mode = <3>;
power = <50>;
};
&vaux2 {
regulator-name = "vdd_ehci";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};

85
arch/arm/boot/dts/omap3-igep.dtsi
View File

@ -1,5 +1,5 @@
/*
* Device Tree Source for IGEP Technology devices
* Common device tree for IGEP boards based on AM/DM37x
*
* Copyright (C) 2012 Javier Martinez Canillas <javier@collabora.co.uk>
* Copyright (C) 2012 Enric Balletbo i Serra <eballetbo@gmail.com>
@ -10,7 +10,7 @@
*/
/dts-v1/;
#include "omap34xx.dtsi"
#include "omap36xx.dtsi"
/ {
memory {
@ -24,6 +24,25 @@ sound {
ti,mcbsp = <&mcbsp2>;
ti,codec = <&twl_audio>;
};
vdd33: regulator-vdd33 {
compatible = "regulator-fixed";
regulator-name = "vdd33";
regulator-always-on;
};
lbee1usjyc_vmmc: lbee1usjyc_vmmc {
pinctrl-names = "default";
pinctrl-0 = <&lbee1usjyc_pins>;
compatible = "regulator-fixed";
regulator-name = "regulator-lbee1usjyc";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio5 10 GPIO_ACTIVE_HIGH>; /* gpio_138 WIFI_PDN */
startup-delay-us = <10000>;
enable-active-high;
vin-supply = <&vdd33>;
};
};
&omap3_pmx_core {
@ -48,6 +67,15 @@ uart3_pins: pinmux_uart3_pins {
>;
};
/* WiFi/BT combo */
lbee1usjyc_pins: pinmux_lbee1usjyc_pins {
pinctrl-single,pins = <
0x136 (PIN_OUTPUT | MUX_MODE4) /* sdmmc2_dat5.gpio_137 */
0x138 (PIN_OUTPUT | MUX_MODE4) /* sdmmc2_dat6.gpio_138 */
0x13a (PIN_OUTPUT | MUX_MODE4) /* sdmmc2_dat7.gpio_139 */
>;
};
mcbsp2_pins: pinmux_mcbsp2_pins {
pinctrl-single,pins = <
0x10c (PIN_INPUT | MUX_MODE0) /* mcbsp2_fsx.mcbsp2_fsx */
@ -65,10 +93,17 @@ mmc1_pins: pinmux_mmc1_pins {
0x11a (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc1_dat1.sdmmc1_dat1 */
0x11c (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc1_dat2.sdmmc1_dat2 */
0x11e (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc1_dat3.sdmmc1_dat3 */
0x120 (PIN_INPUT | MUX_MODE0) /* sdmmc1_dat4.sdmmc1_dat4 */
0x122 (PIN_INPUT | MUX_MODE0) /* sdmmc1_dat5.sdmmc1_dat5 */
0x124 (PIN_INPUT | MUX_MODE0) /* sdmmc1_dat6.sdmmc1_dat6 */
0x126 (PIN_INPUT | MUX_MODE0) /* sdmmc1_dat7.sdmmc1_dat7 */
>;
};
mmc2_pins: pinmux_mmc2_pins {
pinctrl-single,pins = <
0x128 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_clk.sdmmc2_clk */
0x12a (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_cmd.sdmmc2_cmd */
0x12c (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat0.sdmmc2_dat0 */
0x12e (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat1.sdmmc2_dat1 */
0x130 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat2.sdmmc2_dat2 */
0x132 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat3.sdmmc2_dat3 */
>;
};
@ -78,10 +113,33 @@ smsc911x_pins: pinmux_smsc911x_pins {
>;
};
i2c1_pins: pinmux_i2c1_pins {
pinctrl-single,pins = <
0x18a (PIN_INPUT | MUX_MODE0) /* i2c1_scl.i2c1_scl */
0x18c (PIN_INPUT | MUX_MODE0) /* i2c1_sda.i2c1_sda */
>;
};
i2c2_pins: pinmux_i2c2_pins {
pinctrl-single,pins = <
0x18e (PIN_INPUT | MUX_MODE0) /* i2c2_scl.i2c2_scl */
0x190 (PIN_INPUT | MUX_MODE0) /* i2c2_sda.i2c2_sda */
>;
};
i2c3_pins: pinmux_i2c3_pins {
pinctrl-single,pins = <
0x192 (PIN_INPUT | MUX_MODE0) /* i2c3_scl.i2c3_scl */
0x194 (PIN_INPUT | MUX_MODE0) /* i2c3_sda.i2c3_sda */
>;
};
leds_pins: pinmux_leds_pins { };
};
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&i2c1_pins>;
clock-frequency = <2600000>;
twl: twl@48 {
@ -101,9 +159,16 @@ codec {
#include "twl4030_omap3.dtsi"
&i2c2 {
pinctrl-names = "default";
pinctrl-0 = <&i2c2_pins>;
clock-frequency = <400000>;
};
&i2c3 {
pinctrl-names = "default";
pinctrl-0 = <&i2c3_pins>;
};
&mcbsp2 {
pinctrl-names = "default";
pinctrl-0 = <&mcbsp2_pins>;
@ -114,11 +179,15 @@ &mmc1 {
pinctrl-0 = <&mmc1_pins>;
vmmc-supply = <&vmmc1>;
vmmc_aux-supply = <&vsim>;
bus-width = <8>;
bus-width = <4>;
};
&mmc2 {
status = "disabled";
pinctrl-names = "default";
pinctrl-0 = <&mmc2_pins>;
vmmc-supply = <&lbee1usjyc_vmmc>;
bus-width = <4>;
non-removable;
};
&mmc3 {

50
arch/arm/boot/dts/omap3-igep0020.dts
View File

@ -1,5 +1,5 @@
/*
* Device Tree Source for IGEPv2 board
* Device Tree Source for IGEPv2 Rev. (TI OMAP AM/DM37x)
*
* Copyright (C) 2012 Javier Martinez Canillas <javier@collabora.co.uk>
* Copyright (C) 2012 Enric Balletbo i Serra <eballetbo@gmail.com>
@ -13,7 +13,7 @@
#include "omap-gpmc-smsc911x.dtsi"
/ {
model = "IGEPv2";
model = "IGEPv2 (TI OMAP AM/DM37x)";
compatible = "isee,omap3-igep0020", "ti,omap3";
leds {
@ -67,6 +67,8 @@ &omap3_pmx_core {
pinctrl-names = "default";
pinctrl-0 = <
&hsusbb1_pins
&tfp410_pins
&dss_pins
>;
hsusbb1_pins: pinmux_hsusbb1_pins {
@ -85,6 +87,45 @@ hsusbb1_pins: pinmux_hsusbb1_pins {
0x5ba (PIN_INPUT_PULLDOWN | MUX_MODE3) /* etk_d7.hsusb1_data3 */
>;
};
tfp410_pins: tfp410_dvi_pins {
pinctrl-single,pins = <
0x196 (PIN_OUTPUT | MUX_MODE4) /* hdq_sio.gpio_170 */
>;
};
dss_pins: pinmux_dss_dvi_pins {
pinctrl-single,pins = <
0x0a4 (PIN_OUTPUT | MUX_MODE0) /* dss_pclk.dss_pclk */
0x0a6 (PIN_OUTPUT | MUX_MODE0) /* dss_hsync.dss_hsync */
0x0a8 (PIN_OUTPUT | MUX_MODE0) /* dss_vsync.dss_vsync */
0x0aa (PIN_OUTPUT | MUX_MODE0) /* dss_acbias.dss_acbias */
0x0ac (PIN_OUTPUT | MUX_MODE0) /* dss_data0.dss_data0 */
0x0ae (PIN_OUTPUT | MUX_MODE0) /* dss_data1.dss_data1 */
0x0b0 (PIN_OUTPUT | MUX_MODE0) /* dss_data2.dss_data2 */
0x0b2 (PIN_OUTPUT | MUX_MODE0) /* dss_data3.dss_data3 */
0x0b4 (PIN_OUTPUT | MUX_MODE0) /* dss_data4.dss_data4 */
0x0b6 (PIN_OUTPUT | MUX_MODE0) /* dss_data5.dss_data5 */
0x0b8 (PIN_OUTPUT | MUX_MODE0) /* dss_data6.dss_data6 */
0x0ba (PIN_OUTPUT | MUX_MODE0) /* dss_data7.dss_data7 */
0x0bc (PIN_OUTPUT | MUX_MODE0) /* dss_data8.dss_data8 */
0x0be (PIN_OUTPUT | MUX_MODE0) /* dss_data9.dss_data9 */
0x0c0 (PIN_OUTPUT | MUX_MODE0) /* dss_data10.dss_data10 */
0x0c2 (PIN_OUTPUT | MUX_MODE0) /* dss_data11.dss_data11 */
0x0c4 (PIN_OUTPUT | MUX_MODE0) /* dss_data12.dss_data12 */
0x0c6 (PIN_OUTPUT | MUX_MODE0) /* dss_data13.dss_data13 */
0x0c8 (PIN_OUTPUT | MUX_MODE0) /* dss_data14.dss_data14 */
0x0ca (PIN_OUTPUT | MUX_MODE0) /* dss_data15.dss_data15 */
0x0cc (PIN_OUTPUT | MUX_MODE0) /* dss_data16.dss_data16 */
0x0ce (PIN_OUTPUT | MUX_MODE0) /* dss_data17.dss_data17 */
0x0d0 (PIN_OUTPUT | MUX_MODE0) /* dss_data18.dss_data18 */
0x0d2 (PIN_OUTPUT | MUX_MODE0) /* dss_data19.dss_data19 */
0x0d4 (PIN_OUTPUT | MUX_MODE0) /* dss_data20.dss_data20 */
0x0d6 (PIN_OUTPUT | MUX_MODE0) /* dss_data21.dss_data21 */
0x0d8 (PIN_OUTPUT | MUX_MODE0) /* dss_data22.dss_data22 */
0x0da (PIN_OUTPUT | MUX_MODE0) /* dss_data23.dss_data23 */
>;
};
};
&leds_pins {
@ -174,3 +215,8 @@ &usbhshost {
&usbhsehci {
phys = <&hsusb1_phy>;
};
&vpll2 {
/* Needed for DSS */
regulator-name = "vdds_dsi";
};

4
arch/arm/boot/dts/omap3-igep0030.dts
View File

@ -1,5 +1,5 @@
/*
* Device Tree Source for IGEP COM Module
* Device Tree Source for IGEP COM MODULE (TI OMAP AM/DM37x)
*
* Copyright (C) 2012 Javier Martinez Canillas <javier@collabora.co.uk>
* Copyright (C) 2012 Enric Balletbo i Serra <eballetbo@gmail.com>
@ -12,7 +12,7 @@
#include "omap3-igep.dtsi"
/ {
model = "IGEP COM Module";
model = "IGEP COM MODULE (TI OMAP AM/DM37x)";
compatible = "isee,omap3-igep0030", "ti,omap3";
leds {

25
arch/arm/boot/dts/omap3-n900.dts
View File

@ -9,7 +9,7 @@
/dts-v1/;
#include "omap34xx.dtsi"
#include "omap34xx-hs.dtsi"
/ {
model = "Nokia N900";
@ -125,6 +125,21 @@ mmc1_pins: pinmux_mmc1_pins {
>;
};
mmc2_pins: pinmux_mmc2_pins {
pinctrl-single,pins = <
0x128 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_clk */
0x12a (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_cmd */
0x12c (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat0 */
0x12e (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat1 */
0x130 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat2 */
0x132 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat3 */
0x134 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat4 */
0x136 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat5 */
0x138 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat6 */
0x13a (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat7 */
>;
};
display_pins: pinmux_display_pins {
pinctrl-single,pins = <
0x0d4 (PIN_OUTPUT | MUX_MODE4) /* RX51_LCD_RESET_GPIO */
@ -358,8 +373,14 @@ &mmc1 {
cd-gpios = <&gpio6 0 GPIO_ACTIVE_HIGH>; /* 160 */
};
/* most boards use vaux3, only some old versions use vmmc2 instead */
&mmc2 {
status = "disabled";
pinctrl-names = "default";
pinctrl-0 = <&mmc2_pins>;
vmmc-supply = <&vaux3>;
vmmc_aux-supply = <&vsim>;
bus-width = <8>;
non-removable;
};
&mmc3 {

2
arch/arm/boot/dts/omap3-n950-n9.dtsi
View File

@ -8,7 +8,7 @@
* published by the Free Software Foundation.
*/
#include "omap36xx.dtsi"
#include "omap36xx-hs.dtsi"
/ {
cpus {

42
arch/arm/boot/dts/omap3.dtsi
View File

@ -82,6 +82,13 @@ ocp {
ranges;
ti,hwmods = "l3_main";
aes: aes@480c5000 {
compatible = "ti,omap3-aes";
ti,hwmods = "aes";
reg = <0x480c5000 0x50>;
interrupts = <0>;
};
counter32k: counter@48320000 {
compatible = "ti,omap-counter32k";
reg = <0x48320000 0x20>;
@ -260,6 +267,13 @@ i2c3: i2c@48060000 {
ti,hwmods = "i2c3";
};
mailbox: mailbox@48094000 {
compatible = "ti,omap3-mailbox";
ti,hwmods = "mailbox";
reg = <0x48094000 0x200>;
interrupts = <26>;
};
mcspi1: spi@48098000 {
compatible = "ti,omap2-mcspi";
reg = <0x48098000 0x100>;
@ -357,6 +371,13 @@ mmc3: mmc@480ad000 {
dma-names = "tx", "rx";
};
mmu_isp: mmu@480bd400 {
compatible = "ti,omap3-mmu-isp";
ti,hwmods = "mmu_isp";
reg = <0x480bd400 0x80>;
interrupts = <8>;
};
wdt2: wdt@48314000 {
compatible = "ti,omap3-wdt";
reg = <0x48314000 0x80>;
@ -442,6 +463,27 @@ mcbsp5: mcbsp@48096000 {
dma-names = "tx", "rx";
};
sham: sham@480c3000 {
compatible = "ti,omap3-sham";
ti,hwmods = "sham";
reg = <0x480c3000 0x64>;
interrupts = <49>;
};
smartreflex_core: smartreflex@480cb000 {
compatible = "ti,omap3-smartreflex-core";
ti,hwmods = "smartreflex_core";
reg = <0x480cb000 0x400>;
interrupts = <19>;
};
smartreflex_mpu_iva: smartreflex@480c9000 {
compatible = "ti,omap3-smartreflex-iva";
ti,hwmods = "smartreflex_mpu_iva";
reg = <0x480c9000 0x400>;
interrupts = <18>;
};
timer1: timer@48318000 {
compatible = "ti,omap3430-timer";
reg = <0x48318000 0x400>;

16
arch/arm/boot/dts/omap34xx-hs.dtsi Normal file
View File

@ -0,0 +1,16 @@
/* Disabled modules for secure omaps */
#include "omap34xx.dtsi"
/* Secure omaps have some devices inaccessible depending on the firmware */
&aes {
status = "disabled";
};
&sham {
status = "disabled";
};
&timer12 {
status = "disabled";
};

16
arch/arm/boot/dts/omap36xx-hs.dtsi Normal file
View File

@ -0,0 +1,16 @@
/* Disabled modules for secure omaps */
#include "omap36xx.dtsi"
/* Secure omaps have some devices inaccessible depending on the firmware */
&aes {
status = "disabled";
};
&sham {
status = "disabled";
};
&timer12 {
status = "disabled";
};

20
arch/arm/boot/dts/omap4-panda-common.dtsi
View File

@ -246,15 +246,6 @@ i2c4_pins: pinmux_i2c4_pins {
0xf0 (PIN_INPUT_PULLUP | MUX_MODE0) /* i2c4_sda */
>;
};
};
&omap4_pmx_wkup {
led_wkgpio_pins: pinmux_leds_wkpins {
pinctrl-single,pins = <
0x1a (PIN_OUTPUT | MUX_MODE3) /* gpio_wk7 */
0x1c (PIN_OUTPUT | MUX_MODE3) /* gpio_wk8 */
>;
};
/*
* wl12xx GPIO outputs for WLAN_EN, BT_EN, FM_EN, BT_WAKEUP
@ -274,7 +265,7 @@ wl12xx_pins: pinmux_wl12xx_pins {
pinctrl-single,pins = <
0x38 (PIN_INPUT | MUX_MODE3) /* gpmc_ncs2.gpio_52 */
0x3a (PIN_INPUT | MUX_MODE3) /* gpmc_ncs3.gpio_53 */
0x108 (PIN_OUTPUT | MUX_MODE0) /* sdmmc5_clk.sdmmc5_clk */
0x108 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_clk.sdmmc5_clk */
0x10a (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_cmd.sdmmc5_cmd */
0x10c (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat0.sdmmc5_dat0 */
0x10e (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat1.sdmmc5_dat1 */
@ -284,6 +275,15 @@ wl12xx_pins: pinmux_wl12xx_pins {
};
};
&omap4_pmx_wkup {
led_wkgpio_pins: pinmux_leds_wkpins {
pinctrl-single,pins = <
0x1a (PIN_OUTPUT | MUX_MODE3) /* gpio_wk7 */
0x1c (PIN_OUTPUT | MUX_MODE3) /* gpio_wk8 */
>;
};
};
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&i2c1_pins>;

12
arch/arm/boot/dts/omap4-sdp.dts
View File

@ -300,12 +300,12 @@ wl12xx_gpio: pinmux_wl12xx_gpio {
wl12xx_pins: pinmux_wl12xx_pins {
pinctrl-single,pins = <
0x3a (PIN_INPUT | MUX_MODE3) /* gpmc_ncs3.gpio_53 */
0x108 (PIN_OUTPUT | MUX_MODE3) /* sdmmc5_clk.sdmmc5_clk */
0x10a (PIN_INPUT_PULLUP | MUX_MODE3) /* sdmmc5_cmd.sdmmc5_cmd */
0x10c (PIN_INPUT_PULLUP | MUX_MODE3) /* sdmmc5_dat0.sdmmc5_dat0 */
0x10e (PIN_INPUT_PULLUP | MUX_MODE3) /* sdmmc5_dat1.sdmmc5_dat1 */
0x110 (PIN_INPUT_PULLUP | MUX_MODE3) /* sdmmc5_dat2.sdmmc5_dat2 */
0x112 (PIN_INPUT_PULLUP | MUX_MODE3) /* sdmmc5_dat3.sdmmc5_dat3 */
0x108 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_clk.sdmmc5_clk */
0x10a (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_cmd.sdmmc5_cmd */
0x10c (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat0.sdmmc5_dat0 */
0x10e (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat1.sdmmc5_dat1 */
0x110 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat2.sdmmc5_dat2 */
0x112 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat3.sdmmc5_dat3 */
>;
};
};

28
arch/arm/boot/dts/r8a7790.dtsi
View File

@ -87,9 +87,9 @@ gic: interrupt-controller@f1001000 {
interrupts = <1 9 0xf04>;
};
gpio0: gpio@ffc40000 {
gpio0: gpio@e6050000 {
compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
reg = <0 0xffc40000 0 0x2c>;
reg = <0 0xe6050000 0 0x50>;
interrupt-parent = <&gic>;
interrupts = <0 4 0x4>;
#gpio-cells = <2>;
@ -99,9 +99,9 @@ gpio0: gpio@ffc40000 {
interrupt-controller;
};
gpio1: gpio@ffc41000 {
gpio1: gpio@e6051000 {
compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
reg = <0 0xffc41000 0 0x2c>;
reg = <0 0xe6051000 0 0x50>;
interrupt-parent = <&gic>;
interrupts = <0 5 0x4>;
#gpio-cells = <2>;
@ -111,9 +111,9 @@ gpio1: gpio@ffc41000 {
interrupt-controller;
};
gpio2: gpio@ffc42000 {
gpio2: gpio@e6052000 {
compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
reg = <0 0xffc42000 0 0x2c>;
reg = <0 0xe6052000 0 0x50>;
interrupt-parent = <&gic>;
interrupts = <0 6 0x4>;
#gpio-cells = <2>;
@ -123,9 +123,9 @@ gpio2: gpio@ffc42000 {
interrupt-controller;
};
gpio3: gpio@ffc43000 {
gpio3: gpio@e6053000 {
compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
reg = <0 0xffc43000 0 0x2c>;
reg = <0 0xe6053000 0 0x50>;
interrupt-parent = <&gic>;
interrupts = <0 7 0x4>;
#gpio-cells = <2>;
@ -135,9 +135,9 @@ gpio3: gpio@ffc43000 {
interrupt-controller;
};
gpio4: gpio@ffc44000 {
gpio4: gpio@e6054000 {
compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
reg = <0 0xffc44000 0 0x2c>;
reg = <0 0xe6054000 0 0x50>;
interrupt-parent = <&gic>;
interrupts = <0 8 0x4>;
#gpio-cells = <2>;
@ -147,9 +147,9 @@ gpio4: gpio@ffc44000 {
interrupt-controller;
};
gpio5: gpio@ffc45000 {
gpio5: gpio@e6055000 {
compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
reg = <0 0xffc45000 0 0x2c>;
reg = <0 0xe6055000 0 0x50>;
interrupt-parent = <&gic>;
interrupts = <0 9 0x4>;
#gpio-cells = <2>;
@ -241,7 +241,7 @@ pfc: pfc@e6060000 {
sdhi0: sdhi@ee100000 {
compatible = "renesas,sdhi-r8a7790";
reg = <0 0xee100000 0 0x100>;
reg = <0 0xee100000 0 0x200>;
interrupt-parent = <&gic>;
interrupts = <0 165 4>;
cap-sd-highspeed;
@ -250,7 +250,7 @@ sdhi0: sdhi@ee100000 {
sdhi1: sdhi@ee120000 {
compatible = "renesas,sdhi-r8a7790";
reg = <0 0xee120000 0 0x100>;
reg = <0 0xee120000 0 0x200>;
interrupt-parent = <&gic>;
interrupts = <0 166 4>;
cap-sd-highspeed;

7
arch/arm/boot/dts/socfpga.dtsi
View File

@ -245,14 +245,14 @@ h2f_usr2_clk: h2f_usr2_clk {
mpu_periph_clk: mpu_periph_clk {
#clock-cells = <0>;
compatible = "altr,socfpga-gate-clk";
compatible = "altr,socfpga-perip-clk";
clocks = <&mpuclk>;
fixed-divider = <4>;
};
mpu_l2_ram_clk: mpu_l2_ram_clk {
#clock-cells = <0>;
compatible = "altr,socfpga-gate-clk";
compatible = "altr,socfpga-perip-clk";
clocks = <&mpuclk>;
fixed-divider = <2>;
};
@ -266,8 +266,9 @@ l4_main_clk: l4_main_clk {
l3_main_clk: l3_main_clk {
#clock-cells = <0>;
compatible = "altr,socfpga-gate-clk";
compatible = "altr,socfpga-perip-clk";
clocks = <&mainclk>;
fixed-divider = <1>;
};
l3_mp_clk: l3_mp_clk {

27
arch/arm/boot/dts/sun6i-a31.dtsi
View File

@ -193,7 +193,10 @@ soc@01c00000 {
pio: pinctrl@01c20800 {
compatible = "allwinner,sun6i-a31-pinctrl";
reg = <0x01c20800 0x400>;
interrupts = <0 11 1>, <0 15 1>, <0 16 1>, <0 17 1>;
interrupts = <0 11 4>,
<0 15 4>,
<0 16 4>,
<0 17 4>;
clocks = <&apb1_gates 5>;
gpio-controller;
interrupt-controller;
@ -212,11 +215,11 @@ uart0_pins_a: uart0@0 {
timer@01c20c00 {
compatible = "allwinner,sun4i-timer";
reg = <0x01c20c00 0xa0>;
interrupts = <0 18 1>,
<0 19 1>,
<0 20 1>,
<0 21 1>,
<0 22 1>;
interrupts = <0 18 4>,
<0 19 4>,
<0 20 4>,
<0 21 4>,
<0 22 4>;
clocks = <&osc24M>;
};
@ -228,7 +231,7 @@ wdt1: watchdog@01c20ca0 {
uart0: serial@01c28000 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28000 0x400>;
interrupts = <0 0 1>;
interrupts = <0 0 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb2_gates 16>;
@ -238,7 +241,7 @@ uart0: serial@01c28000 {
uart1: serial@01c28400 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28400 0x400>;
interrupts = <0 1 1>;
interrupts = <0 1 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb2_gates 17>;
@ -248,7 +251,7 @@ uart1: serial@01c28400 {
uart2: serial@01c28800 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28800 0x400>;
interrupts = <0 2 1>;
interrupts = <0 2 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb2_gates 18>;
@ -258,7 +261,7 @@ uart2: serial@01c28800 {
uart3: serial@01c28c00 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28c00 0x400>;
interrupts = <0 3 1>;
interrupts = <0 3 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb2_gates 19>;
@ -268,7 +271,7 @@ uart3: serial@01c28c00 {
uart4: serial@01c29000 {
compatible = "snps,dw-apb-uart";
reg = <0x01c29000 0x400>;
interrupts = <0 4 1>;
interrupts = <0 4 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb2_gates 20>;
@ -278,7 +281,7 @@ uart4: serial@01c29000 {
uart5: serial@01c29400 {
compatible = "snps,dw-apb-uart";
reg = <0x01c29400 0x400>;
interrupts = <0 5 1>;
interrupts = <0 5 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb2_gates 21>;

42
arch/arm/boot/dts/sun7i-a20.dtsi
View File

@ -170,7 +170,7 @@ soc@01c00000 {
emac: ethernet@01c0b000 {
compatible = "allwinner,sun4i-emac";
reg = <0x01c0b000 0x1000>;
interrupts = <0 55 1>;
interrupts = <0 55 4>;
clocks = <&ahb_gates 17>;
status = "disabled";
};
@ -186,7 +186,7 @@ mdio@01c0b080 {
pio: pinctrl@01c20800 {
compatible = "allwinner,sun7i-a20-pinctrl";
reg = <0x01c20800 0x400>;
interrupts = <0 28 1>;
interrupts = <0 28 4>;
clocks = <&apb0_gates 5>;
gpio-controller;
interrupt-controller;
@ -251,12 +251,12 @@ emac_pins_a: emac0@0 {
timer@01c20c00 {
compatible = "allwinner,sun4i-timer";
reg = <0x01c20c00 0x90>;
interrupts = <0 22 1>,
<0 23 1>,
<0 24 1>,
<0 25 1>,
<0 67 1>,
<0 68 1>;
interrupts = <0 22 4>,
<0 23 4>,
<0 24 4>,
<0 25 4>,
<0 67 4>,
<0 68 4>;
clocks = <&osc24M>;
};
@ -273,7 +273,7 @@ sid: eeprom@01c23800 {
uart0: serial@01c28000 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28000 0x400>;
interrupts = <0 1 1>;
interrupts = <0 1 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 16>;
@ -283,7 +283,7 @@ uart0: serial@01c28000 {
uart1: serial@01c28400 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28400 0x400>;
interrupts = <0 2 1>;
interrupts = <0 2 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 17>;
@ -293,7 +293,7 @@ uart1: serial@01c28400 {
uart2: serial@01c28800 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28800 0x400>;
interrupts = <0 3 1>;
interrupts = <0 3 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 18>;
@ -303,7 +303,7 @@ uart2: serial@01c28800 {
uart3: serial@01c28c00 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28c00 0x400>;
interrupts = <0 4 1>;
interrupts = <0 4 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 19>;
@ -313,7 +313,7 @@ uart3: serial@01c28c00 {
uart4: serial@01c29000 {
compatible = "snps,dw-apb-uart";
reg = <0x01c29000 0x400>;
interrupts = <0 17 1>;
interrupts = <0 17 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 20>;
@ -323,7 +323,7 @@ uart4: serial@01c29000 {
uart5: serial@01c29400 {
compatible = "snps,dw-apb-uart";
reg = <0x01c29400 0x400>;
interrupts = <0 18 1>;
interrupts = <0 18 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 21>;
@ -333,7 +333,7 @@ uart5: serial@01c29400 {
uart6: serial@01c29800 {
compatible = "snps,dw-apb-uart";
reg = <0x01c29800 0x400>;
interrupts = <0 19 1>;
interrupts = <0 19 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 22>;
@ -343,7 +343,7 @@ uart6: serial@01c29800 {
uart7: serial@01c29c00 {
compatible = "snps,dw-apb-uart";
reg = <0x01c29c00 0x400>;
interrupts = <0 20 1>;
interrupts = <0 20 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 23>;
@ -353,7 +353,7 @@ uart7: serial@01c29c00 {
i2c0: i2c@01c2ac00 {
compatible = "allwinner,sun4i-i2c";
reg = <0x01c2ac00 0x400>;
interrupts = <0 7 1>;
interrupts = <0 7 4>;
clocks = <&apb1_gates 0>;
clock-frequency = <100000>;
status = "disabled";
@ -362,7 +362,7 @@ i2c0: i2c@01c2ac00 {
i2c1: i2c@01c2b000 {
compatible = "allwinner,sun4i-i2c";
reg = <0x01c2b000 0x400>;
interrupts = <0 8 1>;
interrupts = <0 8 4>;
clocks = <&apb1_gates 1>;
clock-frequency = <100000>;
status = "disabled";
@ -371,7 +371,7 @@ i2c1: i2c@01c2b000 {
i2c2: i2c@01c2b400 {
compatible = "allwinner,sun4i-i2c";
reg = <0x01c2b400 0x400>;
interrupts = <0 9 1>;
interrupts = <0 9 4>;
clocks = <&apb1_gates 2>;
clock-frequency = <100000>;
status = "disabled";
@ -380,7 +380,7 @@ i2c2: i2c@01c2b400 {
i2c3: i2c@01c2b800 {
compatible = "allwinner,sun4i-i2c";
reg = <0x01c2b800 0x400>;
interrupts = <0 88 1>;
interrupts = <0 88 4>;
clocks = <&apb1_gates 3>;
clock-frequency = <100000>;
status = "disabled";
@ -389,7 +389,7 @@ i2c3: i2c@01c2b800 {
i2c4: i2c@01c2bc00 {
compatible = "allwinner,sun4i-i2c";
reg = <0x01c2bc00 0x400>;
interrupts = <0 89 1>;
interrupts = <0 89 4>;
clocks = <&apb1_gates 15>;
clock-frequency = <100000>;
status = "disabled";

3
arch/arm/configs/multi_v7_defconfig
View File

@ -69,6 +69,7 @@ CONFIG_KS8851=y
CONFIG_SMSC911X=y
CONFIG_STMMAC_ETH=y
CONFIG_MDIO_SUN4I=y
CONFIG_TI_CPSW=y
CONFIG_KEYBOARD_SPEAR=y
CONFIG_SERIO_AMBAKMI=y
CONFIG_SERIAL_8250=y
@ -133,12 +134,14 @@ CONFIG_USB_GPIO_VBUS=y
CONFIG_USB_ISP1301=y
CONFIG_USB_MXS_PHY=y
CONFIG_MMC=y
CONFIG_MMC_BLOCK_MINORS=16
CONFIG_MMC_ARMMMCI=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_SDHCI_ESDHC_IMX=y
CONFIG_MMC_SDHCI_TEGRA=y
CONFIG_MMC_SDHCI_SPEAR=y
CONFIG_MMC_SDHCI_BCM_KONA=y
CONFIG_MMC_OMAP=y
CONFIG_MMC_OMAP_HS=y
CONFIG_EDAC=y

1
arch/arm/configs/omap2plus_defconfig
View File

@ -173,6 +173,7 @@ CONFIG_MFD_PALMAS=y
CONFIG_MFD_TPS65217=y
CONFIG_MFD_TPS65910=y
CONFIG_TWL6040_CORE=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_PALMAS=y
CONFIG_REGULATOR_TPS65023=y
CONFIG_REGULATOR_TPS6507X=y

7
arch/arm/configs/sunxi_defconfig
View File

@ -12,6 +12,9 @@ CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
@ -58,4 +61,8 @@ CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
CONFIG_COMMON_CLK_DEBUG=y
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_TMPFS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_NLS=y
CONFIG_PRINTK_TIME=y

3
arch/arm/configs/u8500_defconfig
View File

@ -22,6 +22,7 @@ CONFIG_CMDLINE="root=/dev/ram0 console=ttyAMA2,115200n8"
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_IDLE=y
CONFIG_ARM_U8500_CPUIDLE=y
CONFIG_VFP=y
CONFIG_NEON=y
CONFIG_PM_RUNTIME=y
@ -109,6 +110,8 @@ CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
CONFIG_EXT4_FS=y
CONFIG_VFAT_FS=y
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
# CONFIG_MISC_FILESYSTEMS is not set

31
arch/arm/include/asm/memory.h
View File

@ -100,23 +100,19 @@
#define TASK_UNMAPPED_BASE UL(0x00000000)
#endif
#ifndef PHYS_OFFSET
#define PHYS_OFFSET UL(CONFIG_DRAM_BASE)
#endif
#ifndef END_MEM
#define END_MEM (UL(CONFIG_DRAM_BASE) + CONFIG_DRAM_SIZE)
#endif
#ifndef PAGE_OFFSET
#define PAGE_OFFSET (PHYS_OFFSET)
#define PAGE_OFFSET PLAT_PHYS_OFFSET
#endif
/*
* The module can be at any place in ram in nommu mode.
*/
#define MODULES_END (END_MEM)
#define MODULES_VADDR (PHYS_OFFSET)
#define MODULES_VADDR PAGE_OFFSET
#define XIP_VIRT_ADDR(physaddr) (physaddr)
@ -157,6 +153,16 @@
#endif
#define ARCH_PGD_MASK ((1 << ARCH_PGD_SHIFT) - 1)
/*
* PLAT_PHYS_OFFSET is the offset (from zero) of the start of physical
* memory. This is used for XIP and NoMMU kernels, or by kernels which
* have their own mach/memory.h. Assembly code must always use
* PLAT_PHYS_OFFSET and not PHYS_OFFSET.
*/
#ifndef PLAT_PHYS_OFFSET
#define PLAT_PHYS_OFFSET UL(CONFIG_PHYS_OFFSET)
#endif
#ifndef __ASSEMBLY__
/*
@ -239,6 +245,8 @@ static inline unsigned long __phys_to_virt(phys_addr_t x)
#else
#define PHYS_OFFSET PLAT_PHYS_OFFSET
static inline phys_addr_t __virt_to_phys(unsigned long x)
{
return (phys_addr_t)x - PAGE_OFFSET + PHYS_OFFSET;
@ -251,17 +259,6 @@ static inline unsigned long __phys_to_virt(phys_addr_t x)
#endif
#endif
#endif /* __ASSEMBLY__ */
#ifndef PHYS_OFFSET
#ifdef PLAT_PHYS_OFFSET
#define PHYS_OFFSET PLAT_PHYS_OFFSET
#else
#define PHYS_OFFSET UL(CONFIG_PHYS_OFFSET)
#endif
#endif
#ifndef __ASSEMBLY__
/*
* PFNs are used to describe any physical page; this means

2
arch/arm/include/asm/pgtable.h
View File

@ -61,7 +61,7 @@ extern void __pgd_error(const char *file, int line, pgd_t);
* mapping to be mapped at. This is particularly important for
* non-high vector CPUs.
*/
#define FIRST_USER_ADDRESS PAGE_SIZE
#define FIRST_USER_ADDRESS (PAGE_SIZE * 2)
/*
* Use TASK_SIZE as the ceiling argument for free_pgtables() and

4
arch/arm/kernel/head-nommu.S
View File

@ -68,7 +68,7 @@ ENTRY(stext)
#ifdef CONFIG_ARM_MPU
/* Calculate the size of a region covering just the kernel */
ldr r5, =PHYS_OFFSET @ Region start: PHYS_OFFSET
ldr r5, =PLAT_PHYS_OFFSET @ Region start: PHYS_OFFSET
ldr r6, =(_end) @ Cover whole kernel
sub r6, r6, r5 @ Minimum size of region to map
clz r6, r6 @ Region size must be 2^N...
@ -213,7 +213,7 @@ ENTRY(__setup_mpu)
set_region_nr r0, #MPU_RAM_REGION
isb
/* Full access from PL0, PL1, shared for CONFIG_SMP, cacheable */
ldr r0, =PHYS_OFFSET @ RAM starts at PHYS_OFFSET
ldr r0, =PLAT_PHYS_OFFSET @ RAM starts at PHYS_OFFSET
ldr r5,=(MPU_AP_PL1RW_PL0RW | MPU_RGN_NORMAL)
setup_region r0, r5, r6, MPU_DATA_SIDE @ PHYS_OFFSET, shared, enabled

2
arch/arm/kernel/head.S
View File

@ -110,7 +110,7 @@ ENTRY(stext)
sub r4, r3, r4 @ (PHYS_OFFSET - PAGE_OFFSET)
add r8, r8, r4 @ PHYS_OFFSET
#else
ldr r8, =PHYS_OFFSET @ always constant in this case
ldr r8, =PLAT_PHYS_OFFSET @ always constant in this case
#endif
/*

17
arch/arm/kernel/machine_kexec.c
View File

@ -14,11 +14,12 @@
#include <asm/pgalloc.h>
#include <asm/mmu_context.h>
#include <asm/cacheflush.h>
#include <asm/fncpy.h>
#include <asm/mach-types.h>
#include <asm/smp_plat.h>
#include <asm/system_misc.h>
extern const unsigned char relocate_new_kernel[];
extern void relocate_new_kernel(void);
extern const unsigned int relocate_new_kernel_size;
extern unsigned long kexec_start_address;
@ -142,6 +143,8 @@ void machine_kexec(struct kimage *image)
{
unsigned long page_list;
unsigned long reboot_code_buffer_phys;
unsigned long reboot_entry = (unsigned long)relocate_new_kernel;
unsigned long reboot_entry_phys;
void *reboot_code_buffer;
/*
@ -168,16 +171,16 @@ void machine_kexec(struct kimage *image)
/* copy our kernel relocation code to the control code page */
memcpy(reboot_code_buffer,
relocate_new_kernel, relocate_new_kernel_size);
reboot_entry = fncpy(reboot_code_buffer,
reboot_entry,
relocate_new_kernel_size);
reboot_entry_phys = (unsigned long)reboot_entry +
(reboot_code_buffer_phys - (unsigned long)reboot_code_buffer);
flush_icache_range((unsigned long) reboot_code_buffer,
(unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE);
printk(KERN_INFO "Bye!\n");
if (kexec_reinit)
kexec_reinit();
soft_restart(reboot_code_buffer_phys);
soft_restart(reboot_entry_phys);
}

7
arch/arm/kernel/process.c
View File

@ -404,6 +404,7 @@ EXPORT_SYMBOL(dump_fpu);
unsigned long get_wchan(struct task_struct *p)
{
struct stackframe frame;
unsigned long stack_page;
int count = 0;
if (!p || p == current || p->state == TASK_RUNNING)
return 0;
@ -412,9 +413,11 @@ unsigned long get_wchan(struct task_struct *p)
frame.sp = thread_saved_sp(p);
frame.lr = 0; /* recovered from the stack */
frame.pc = thread_saved_pc(p);
stack_page = (unsigned long)task_stack_page(p);
do {
int ret = unwind_frame(&frame);
if (ret < 0)
if (frame.sp < stack_page ||
frame.sp >= stack_page + THREAD_SIZE ||
unwind_frame(&frame) < 0)
return 0;
if (!in_sched_functions(frame.pc))
return frame.pc;

8
arch/arm/kernel/relocate_kernel.S
View File

@ -2,10 +2,12 @@
* relocate_kernel.S - put the kernel image in place to boot
*/
#include <linux/linkage.h>
#include <asm/kexec.h>
.globl relocate_new_kernel
relocate_new_kernel:
.align 3 /* not needed for this code, but keeps fncpy() happy */
ENTRY(relocate_new_kernel)
ldr r0,kexec_indirection_page
ldr r1,kexec_start_address
@ -79,6 +81,8 @@ kexec_mach_type:
kexec_boot_atags:
.long 0x0
ENDPROC(relocate_new_kernel)
relocate_new_kernel_end:
.globl relocate_new_kernel_size

3
arch/arm/kernel/setup.c
View File

@ -873,8 +873,6 @@ void __init setup_arch(char **cmdline_p)
machine_desc = mdesc;
machine_name = mdesc->name;
setup_dma_zone(mdesc);
if (mdesc->reboot_mode != REBOOT_HARD)
reboot_mode = mdesc->reboot_mode;
@ -892,6 +890,7 @@ void __init setup_arch(char **cmdline_p)
sort(&meminfo.bank, meminfo.nr_banks, sizeof(meminfo.bank[0]), meminfo_cmp, NULL);
early_paging_init(mdesc, lookup_processor_type(read_cpuid_id()));
setup_dma_zone(mdesc);
sanity_check_meminfo();
arm_memblock_init(&meminfo, mdesc);

40
arch/arm/kernel/sigreturn_codes.S
View File

@ -30,6 +30,27 @@
* snippets.
*/
/*
* In CPU_THUMBONLY case kernel arm opcodes are not allowed.
* Note in this case codes skips those instructions but it uses .org
* directive to keep correct layout of sigreturn_codes array.
*/
#ifndef CONFIG_CPU_THUMBONLY
#define ARM_OK(code...) code
#else
#define ARM_OK(code...)
#endif
.macro arm_slot n
.org sigreturn_codes + 12 * (\n)
ARM_OK( .arm )
.endm
.macro thumb_slot n
.org sigreturn_codes + 12 * (\n) + 8
.thumb
.endm
#if __LINUX_ARM_ARCH__ <= 4
/*
* Note we manually set minimally required arch that supports
@ -45,26 +66,27 @@
.global sigreturn_codes
.type sigreturn_codes, #object
.arm
.align
sigreturn_codes:
/* ARM sigreturn syscall code snippet */
mov r7, #(__NR_sigreturn - __NR_SYSCALL_BASE)
swi #(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE)
arm_slot 0
ARM_OK( mov r7, #(__NR_sigreturn - __NR_SYSCALL_BASE) )
ARM_OK( swi #(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE) )
/* Thumb sigreturn syscall code snippet */
.thumb
thumb_slot 0
movs r7, #(__NR_sigreturn - __NR_SYSCALL_BASE)
swi #0
/* ARM sigreturn_rt syscall code snippet */
.arm
mov r7, #(__NR_rt_sigreturn - __NR_SYSCALL_BASE)
swi #(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE)
arm_slot 1
ARM_OK( mov r7, #(__NR_rt_sigreturn - __NR_SYSCALL_BASE) )
ARM_OK( swi #(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE) )
/* Thumb sigreturn_rt syscall code snippet */
.thumb
thumb_slot 1
movs r7, #(__NR_rt_sigreturn - __NR_SYSCALL_BASE)
swi #0
@ -74,7 +96,7 @@ sigreturn_codes:
* it is thumb case or not, so we need additional
* word after real last entry.
*/
.arm
arm_slot 2
.space 4
.size sigreturn_codes, . - sigreturn_codes

2
arch/arm/kernel/stacktrace.c
View File

@ -31,7 +31,7 @@ int notrace unwind_frame(struct stackframe *frame)
high = ALIGN(low, THREAD_SIZE);
/* check current frame pointer is within bounds */
if (fp < (low + 12) || fp + 4 >= high)
if (fp < low + 12 || fp > high - 4)
return -EINVAL;
/* restore the registers from the stack frame */

3
arch/arm/kernel/traps.c
View File

@ -509,9 +509,10 @@ static inline int
__do_cache_op(unsigned long start, unsigned long end)
{
int ret;
unsigned long chunk = PAGE_SIZE;
do {
unsigned long chunk = min(PAGE_SIZE, end - start);
if (signal_pending(current)) {
struct thread_info *ti = current_thread_info();

1
arch/arm/lib/delay-loop.S
View File

@ -40,6 +40,7 @@ ENTRY(__loop_const_udelay) @ 0 <= r0 <= 0x7fffff06
/*
* loops = r0 * HZ * loops_per_jiffy / 1000000
*/
.align 3
@ Delay routine
ENTRY(__loop_delay)

7
arch/arm/mach-at91/at91rm9200_time.c
View File

@ -174,7 +174,6 @@ clkevt32k_next_event(unsigned long delta, struct clock_event_device *dev)
static struct clock_event_device clkevt = {
.name = "at91_tick",
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
.shift = 32,
.rating = 150,
.set_next_event = clkevt32k_next_event,
.set_mode = clkevt32k_mode,
@ -265,11 +264,9 @@ void __init at91rm9200_timer_init(void)
at91_st_write(AT91_ST_RTMR, 1);
/* Setup timer clockevent, with minimum of two ticks (important!!) */
clkevt.mult = div_sc(AT91_SLOW_CLOCK, NSEC_PER_SEC, clkevt.shift);
clkevt.max_delta_ns = clockevent_delta2ns(AT91_ST_ALMV, &clkevt);
clkevt.min_delta_ns = clockevent_delta2ns(2, &clkevt) + 1;
clkevt.cpumask = cpumask_of(0);
clockevents_register_device(&clkevt);
clockevents_config_and_register(&clkevt, AT91_SLOW_CLOCK,
2, AT91_ST_ALMV);
/* register clocksource */
clocksource_register_hz(&clk32k, AT91_SLOW_CLOCK);

4
arch/arm/mach-at91/pm.h
View File

@ -16,7 +16,11 @@
#include <mach/at91_ramc.h>
#include <mach/at91rm9200_sdramc.h>
#ifdef CONFIG_PM
extern void at91_pm_set_standby(void (*at91_standby)(void));
#else
static inline void at91_pm_set_standby(void (*at91_standby)(void)) { }
#endif
/*
* The AT91RM9200 goes into self-refresh mode with this command, and will

6
arch/arm/mach-at91/sama5d3.c
View File

@ -95,19 +95,19 @@ static struct clk twi0_clk = {
.name = "twi0_clk",
.pid = SAMA5D3_ID_TWI0,
.type = CLK_TYPE_PERIPHERAL,
.div = AT91_PMC_PCR_DIV2,
.div = AT91_PMC_PCR_DIV8,
};
static struct clk twi1_clk = {
.name = "twi1_clk",
.pid = SAMA5D3_ID_TWI1,
.type = CLK_TYPE_PERIPHERAL,
.div = AT91_PMC_PCR_DIV2,
.div = AT91_PMC_PCR_DIV8,
};
static struct clk twi2_clk = {
.name = "twi2_clk",
.pid = SAMA5D3_ID_TWI2,
.type = CLK_TYPE_PERIPHERAL,
.div = AT91_PMC_PCR_DIV2,
.div = AT91_PMC_PCR_DIV8,
};
static struct clk mmc0_clk = {
.name = "mci0_clk",

4
arch/arm/mach-davinci/devices-da8xx.c
View File

@ -487,7 +487,7 @@ int __init da8xx_register_emac(void)
static struct resource da830_mcasp1_resources[] = {
{
.name = "mcasp1",
.name = "mpu",
.start = DAVINCI_DA830_MCASP1_REG_BASE,
.end = DAVINCI_DA830_MCASP1_REG_BASE + (SZ_1K * 12) - 1,
.flags = IORESOURCE_MEM,
@ -515,7 +515,7 @@ static struct platform_device da830_mcasp1_device = {
static struct resource da850_mcasp_resources[] = {
{
.name = "mcasp",
.name = "mpu",
.start = DAVINCI_DA8XX_MCASP0_REG_BASE,
.end = DAVINCI_DA8XX_MCASP0_REG_BASE + (SZ_1K * 12) - 1,
.flags = IORESOURCE_MEM,

3
arch/arm/mach-davinci/dm355.c
View File

@ -641,6 +641,7 @@ static struct platform_device dm355_edma_device = {
static struct resource dm355_asp1_resources[] = {
{
.name = "mpu",
.start = DAVINCI_ASP1_BASE,
.end = DAVINCI_ASP1_BASE + SZ_8K - 1,
.flags = IORESOURCE_MEM,
@ -906,7 +907,7 @@ static struct davinci_gpio_platform_data dm355_gpio_platform_data = {
int __init dm355_gpio_register(void)
{
return davinci_gpio_register(dm355_gpio_resources,
sizeof(dm355_gpio_resources),
ARRAY_SIZE(dm355_gpio_resources),
&dm355_gpio_platform_data);
}
/*----------------------------------------------------------------------*/

3
arch/arm/mach-davinci/dm365.c
View File

@ -720,7 +720,7 @@ static struct davinci_gpio_platform_data dm365_gpio_platform_data = {
int __init dm365_gpio_register(void)
{
return davinci_gpio_register(dm365_gpio_resources,
sizeof(dm365_gpio_resources),
ARRAY_SIZE(dm365_gpio_resources),
&dm365_gpio_platform_data);
}
@ -942,6 +942,7 @@ static struct platform_device dm365_edma_device = {
static struct resource dm365_asp_resources[] = {
{
.name = "mpu",
.start = DAVINCI_DM365_ASP0_BASE,
.end = DAVINCI_DM365_ASP0_BASE + SZ_8K - 1,
.flags = IORESOURCE_MEM,

3
arch/arm/mach-davinci/dm644x.c
View File

@ -572,6 +572,7 @@ static struct platform_device dm644x_edma_device = {
/* DM6446 EVM uses ASP0; line-out is a pair of RCA jacks */
static struct resource dm644x_asp_resources[] = {
{
.name = "mpu",
.start = DAVINCI_ASP0_BASE,
.end = DAVINCI_ASP0_BASE + SZ_8K - 1,
.flags = IORESOURCE_MEM,
@ -792,7 +793,7 @@ static struct davinci_gpio_platform_data dm644_gpio_platform_data = {
int __init dm644x_gpio_register(void)
{
return davinci_gpio_register(dm644_gpio_resources,
sizeof(dm644_gpio_resources),
ARRAY_SIZE(dm644_gpio_resources),
&dm644_gpio_platform_data);
}
/*----------------------------------------------------------------------*/

6
arch/arm/mach-davinci/dm646x.c
View File

@ -621,7 +621,7 @@ static struct platform_device dm646x_edma_device = {
static struct resource dm646x_mcasp0_resources[] = {
{
.name = "mcasp0",
.name = "mpu",
.start = DAVINCI_DM646X_MCASP0_REG_BASE,
.end = DAVINCI_DM646X_MCASP0_REG_BASE + (SZ_1K << 1) - 1,
.flags = IORESOURCE_MEM,
@ -641,7 +641,7 @@ static struct resource dm646x_mcasp0_resources[] = {
static struct resource dm646x_mcasp1_resources[] = {
{
.name = "mcasp1",
.name = "mpu",
.start = DAVINCI_DM646X_MCASP1_REG_BASE,
.end = DAVINCI_DM646X_MCASP1_REG_BASE + (SZ_1K << 1) - 1,
.flags = IORESOURCE_MEM,
@ -769,7 +769,7 @@ static struct davinci_gpio_platform_data dm646x_gpio_platform_data = {
int __init dm646x_gpio_register(void)
{
return davinci_gpio_register(dm646x_gpio_resources,
sizeof(dm646x_gpio_resources),
ARRAY_SIZE(dm646x_gpio_resources),
&dm646x_gpio_platform_data);
}
/*----------------------------------------------------------------------*/

3
arch/arm/mach-footbridge/common.c
View File

@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/io.h>
#include <linux/spinlock.h>
#include <video/vga.h>
#include <asm/pgtable.h>
#include <asm/page.h>
@ -196,6 +197,8 @@ void __init footbridge_map_io(void)
iotable_init(ebsa285_host_io_desc, ARRAY_SIZE(ebsa285_host_io_desc));
pci_map_io_early(__phys_to_pfn(DC21285_PCI_IO));
}
vga_base = PCIMEM_BASE;
}
void footbridge_restart(enum reboot_mode mode, const char *cmd)

2
arch/arm/mach-footbridge/dc21285.c
View File

@ -18,7 +18,6 @@
#include <linux/irq.h>
#include <linux/io.h>
#include <linux/spinlock.h>
#include <video/vga.h>
#include <asm/irq.h>
#include <asm/mach/pci.h>
@ -291,7 +290,6 @@ void __init dc21285_preinit(void)
int cfn_mode;
pcibios_min_mem = 0x81000000;
vga_base = PCIMEM_BASE;
mem_size = (unsigned int)high_memory - PAGE_OFFSET;
for (mem_mask = 0x00100000; mem_mask < 0x10000000; mem_mask <<= 1)

22
arch/arm/mach-footbridge/ebsa285.c
View File

@ -30,21 +30,24 @@ static const struct {
const char *name;
const char *trigger;
} ebsa285_leds[] = {
{ "ebsa285:amber", "heartbeat", },
{ "ebsa285:green", "cpu0", },
{ "ebsa285:amber", "cpu0", },
{ "ebsa285:green", "heartbeat", },
{ "ebsa285:red",},
};
static unsigned char hw_led_state;
static void ebsa285_led_set(struct led_classdev *cdev,
enum led_brightness b)
{
struct ebsa285_led *led = container_of(cdev,
struct ebsa285_led, cdev);
if (b != LED_OFF)
*XBUS_LEDS |= led->mask;
if (b == LED_OFF)
hw_led_state |= led->mask;
else
*XBUS_LEDS &= ~led->mask;
hw_led_state &= ~led->mask;
*XBUS_LEDS = hw_led_state;
}
static enum led_brightness ebsa285_led_get(struct led_classdev *cdev)
@ -52,18 +55,19 @@ static enum led_brightness ebsa285_led_get(struct led_classdev *cdev)
struct ebsa285_led *led = container_of(cdev,
struct ebsa285_led, cdev);
return (*XBUS_LEDS & led->mask) ? LED_FULL : LED_OFF;
return hw_led_state & led->mask ? LED_OFF : LED_FULL;
}
static int __init ebsa285_leds_init(void)
{
int i;
if (machine_is_ebsa285())
if (!machine_is_ebsa285())
return -ENODEV;
/* 3 LEDS All ON */
*XBUS_LEDS |= XBUS_LED_AMBER | XBUS_LED_GREEN | XBUS_LED_RED;
/* 3 LEDS all off */
hw_led_state = XBUS_LED_AMBER | XBUS_LED_GREEN | XBUS_LED_RED;
*XBUS_LEDS = hw_led_state;
for (i = 0; i < ARRAY_SIZE(ebsa285_leds); i++) {
struct ebsa285_led *led;

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