Merge branch 'sched/urgent' into sched/core

Merge the latest batch of fixes before applying development patches.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2013-12-17 15:22:35 +01:00
Родитель 40ea2b42d7 757dfcaa41
Коммит ffe732c243
636 изменённых файлов: 6877 добавлений и 3013 удалений

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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

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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>

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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

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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 {

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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"

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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>;

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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.

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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

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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

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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.

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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>;
};

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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>;

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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";
};

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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>;
};

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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.

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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.

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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

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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.

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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)

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119
Documentation/gpio/gpio.txt Normal file
Просмотреть файл

@ -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.

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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.

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@ -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",

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@ -1934,7 +1934,8 @@ 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/
@ -2137,7 +2138,8 @@ 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/
@ -4043,12 +4045,26 @@ 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
@ -5261,7 +5277,7 @@ 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>
@ -5973,10 +5989,10 @@ 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/
@ -6243,8 +6259,8 @@ 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/
@ -7385,7 +7401,6 @@ 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

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@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 13
SUBLEVEL = 0
EXTRAVERSION = -rc1
EXTRAVERSION = -rc3
NAME = One Giant Leap for Frogkind
# *DOCUMENTATION*

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@ -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>;
};
};

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@ -199,6 +199,35 @@
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 {

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@ -99,22 +99,22 @@
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";
};
};
};
};

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

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@ -47,7 +47,7 @@
/*
* 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 @@
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 @@
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 @@
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";
};
};

Просмотреть файл

@ -48,7 +48,7 @@
/*
* 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 @@
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 @@
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 @@
#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 @@
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 @@
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 {

Просмотреть файл

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

Просмотреть файл

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

Просмотреть файл

@ -27,6 +27,13 @@
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 @@
max77686@09 {
compatible = "maxim,max77686";
interrupt-parent = <&gpx3>;
interrupts = <2 0>;
pinctrl-names = "default";
pinctrl-0 = <&max77686_irq>;
wakeup-source;
reg = <0x09>;
voltage-regulators {

Просмотреть файл

@ -161,7 +161,7 @@
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",

Просмотреть файл

@ -44,8 +44,8 @@
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;
};

Просмотреть файл

@ -13,7 +13,7 @@
* 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>;

Просмотреть файл

@ -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 @@
serial0 = &uart1;
serial1 = &uart2;
serial2 = &uart3;
i2c0 = &i2c1;
i2c1 = &i2c2;
};
cpus {
@ -53,6 +56,28 @@
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 @@
sdma: dma-controller@48056000 {
compatible = "ti,omap2430-sdma", "ti,omap2420-sdma";
ti,hwmods = "dma";
reg = <0x48056000 0x1000>;
interrupts = <12>,
<13>,
@ -73,21 +99,91 @@
#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>;
};

Просмотреть файл

@ -114,6 +114,15 @@
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 @@
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";
};

Просмотреть файл

@ -175,6 +175,25 @@
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 @@
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";
};

Просмотреть файл

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

Просмотреть файл

@ -61,6 +61,14 @@
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 @@
reg = <0x48>;
interrupts = <7>; /* SYS_NIRQ cascaded to intc */
interrupt-parent = <&intc>;
twl_audio: audio {
compatible = "ti,twl4030-audio";
codec {
};
};
};
};
@ -178,3 +192,10 @@
mode = <3>;
power = <50>;
};
&vaux2 {
regulator-name = "vdd_ehci";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};

Просмотреть файл

@ -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 @@
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 @@
>;
};
/* 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 @@
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 @@
>;
};
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 @@
#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 @@
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 {

Просмотреть файл

@ -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 @@
pinctrl-names = "default";
pinctrl-0 = <
&hsusbb1_pins
&tfp410_pins
&dss_pins
>;
hsusbb1_pins: pinmux_hsusbb1_pins {
@ -85,6 +87,45 @@
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 @@
&usbhsehci {
phys = <&hsusb1_phy>;
};
&vpll2 {
/* Needed for DSS */
regulator-name = "vdds_dsi";
};

Просмотреть файл

@ -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 {

Просмотреть файл

@ -125,6 +125,21 @@
>;
};
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 @@
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 {

Просмотреть файл

@ -82,6 +82,13 @@
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 @@
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 @@
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 @@
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>;

Просмотреть файл

@ -246,15 +246,6 @@
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 @@
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 @@
};
};
&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>;

Просмотреть файл

@ -300,12 +300,12 @@
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 */
>;
};
};

Просмотреть файл

@ -245,14 +245,14 @@
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 @@
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 {

Просмотреть файл

@ -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

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@ -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

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@ -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

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@ -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

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@ -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

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@ -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);
}

Просмотреть файл

@ -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

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@ -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

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@ -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)

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@ -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);

Просмотреть файл

@ -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

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@ -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",

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@ -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)

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@ -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)

Просмотреть файл

@ -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;

Просмотреть файл

@ -19,11 +19,11 @@ secure-common = omap-smc.o omap-secure.o
obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(hwmod-common)
obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(hwmod-common) $(secure-common)
obj-$(CONFIG_ARCH_OMAP4) += prm44xx.o $(hwmod-common) $(secure-common)
obj-$(CONFIG_ARCH_OMAP4) += $(hwmod-common) $(secure-common)
obj-$(CONFIG_SOC_AM33XX) += irq.o $(hwmod-common)
obj-$(CONFIG_SOC_OMAP5) += prm44xx.o $(hwmod-common) $(secure-common)
obj-$(CONFIG_SOC_OMAP5) += $(hwmod-common) $(secure-common)
obj-$(CONFIG_SOC_AM43XX) += $(hwmod-common) $(secure-common)
obj-$(CONFIG_SOC_DRA7XX) += prm44xx.o $(hwmod-common) $(secure-common)
obj-$(CONFIG_SOC_DRA7XX) += $(hwmod-common) $(secure-common)
ifneq ($(CONFIG_SND_OMAP_SOC_MCBSP),)
obj-y += mcbsp.o

Просмотреть файл

@ -299,7 +299,6 @@ struct omap_sdrc_params;
extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
struct omap_sdrc_params *sdrc_cs1);
struct omap2_hsmmc_info;
extern int omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers);
extern void omap_reserve(void);
struct omap_hwmod;

Просмотреть файл

@ -32,7 +32,6 @@
#include "soc.h"
#include "iomap.h"
#include "mux.h"
#include "control.h"
#include "display.h"
#include "prm.h"
@ -102,90 +101,13 @@ static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initconst = {
{ "dss_hdmi", "omapdss_hdmi", -1 },
};
static void __init omap4_tpd12s015_mux_pads(void)
{
omap_mux_init_signal("hdmi_cec",
OMAP_PIN_INPUT_PULLUP);
omap_mux_init_signal("hdmi_ddc_scl",
OMAP_PIN_INPUT_PULLUP);
omap_mux_init_signal("hdmi_ddc_sda",
OMAP_PIN_INPUT_PULLUP);
}
static void __init omap4_hdmi_mux_pads(enum omap_hdmi_flags flags)
{
u32 reg;
u16 control_i2c_1;
/*
* CONTROL_I2C_1: HDMI_DDC_SDA_PULLUPRESX (bit 28) and
* HDMI_DDC_SCL_PULLUPRESX (bit 24) are set to disable
* internal pull up resistor.
*/
if (flags & OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP) {
control_i2c_1 = OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_I2C_1;
reg = omap4_ctrl_pad_readl(control_i2c_1);
reg |= (OMAP4_HDMI_DDC_SDA_PULLUPRESX_MASK |
OMAP4_HDMI_DDC_SCL_PULLUPRESX_MASK);
omap4_ctrl_pad_writel(reg, control_i2c_1);
}
}
static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes)
{
u32 enable_mask, enable_shift;
u32 pipd_mask, pipd_shift;
u32 reg;
if (dsi_id == 0) {
enable_mask = OMAP4_DSI1_LANEENABLE_MASK;
enable_shift = OMAP4_DSI1_LANEENABLE_SHIFT;
pipd_mask = OMAP4_DSI1_PIPD_MASK;
pipd_shift = OMAP4_DSI1_PIPD_SHIFT;
} else if (dsi_id == 1) {
enable_mask = OMAP4_DSI2_LANEENABLE_MASK;
enable_shift = OMAP4_DSI2_LANEENABLE_SHIFT;
pipd_mask = OMAP4_DSI2_PIPD_MASK;
pipd_shift = OMAP4_DSI2_PIPD_SHIFT;
} else {
return -ENODEV;
}
reg = omap4_ctrl_pad_readl(OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY);
reg &= ~enable_mask;
reg &= ~pipd_mask;
reg |= (lanes << enable_shift) & enable_mask;
reg |= (lanes << pipd_shift) & pipd_mask;
omap4_ctrl_pad_writel(reg, OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY);
return 0;
}
int __init omap_hdmi_init(enum omap_hdmi_flags flags)
{
if (cpu_is_omap44xx()) {
omap4_hdmi_mux_pads(flags);
omap4_tpd12s015_mux_pads();
}
return 0;
}
static int omap_dsi_enable_pads(int dsi_id, unsigned lane_mask)
{
if (cpu_is_omap44xx())
return omap4_dsi_mux_pads(dsi_id, lane_mask);
return 0;
}
static void omap_dsi_disable_pads(int dsi_id, unsigned lane_mask)
{
if (cpu_is_omap44xx())
omap4_dsi_mux_pads(dsi_id, 0);
}
static int omap_dss_set_min_bus_tput(struct device *dev, unsigned long tput)

Просмотреть файл

@ -223,7 +223,7 @@ void __init omap_4430sdp_display_init_of(void)
static struct connector_dvi_platform_data omap3_igep2_dvi_connector_pdata = {
.name = "dvi",
.source = "tfp410.0",
.i2c_bus_num = 3,
.i2c_bus_num = 2,
};
static struct platform_device omap3_igep2_dvi_connector_device = {

Просмотреть файл

@ -1501,6 +1501,22 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
return ret;
}
/*
* For some GPMC devices we still need to rely on the bootloader
* timings because the devices can be connected via FPGA. So far
* the list is smc91x on the omap2 SDP boards, and 8250 on zooms.
* REVISIT: Add timing support from slls644g.pdf and from the
* lan91c96 manual.
*/
if (of_device_is_compatible(child, "ns16550a") ||
of_device_is_compatible(child, "smsc,lan91c94") ||
of_device_is_compatible(child, "smsc,lan91c111")) {
dev_warn(&pdev->dev,
"%s using bootloader timings on CS%d\n",
child->name, cs);
goto no_timings;
}
/*
* FIXME: gpmc_cs_request() will map the CS to an arbitary
* location in the gpmc address space. When booting with
@ -1529,6 +1545,7 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
gpmc_read_timings_dt(child, &gpmc_t);
gpmc_cs_set_timings(cs, &gpmc_t);
no_timings:
if (of_platform_device_create(child, NULL, &pdev->dev))
return 0;
@ -1541,42 +1558,6 @@ err:
return ret;
}
/*
* REVISIT: Add timing support from slls644g.pdf
*/
static int gpmc_probe_8250(struct platform_device *pdev,
struct device_node *child)
{
struct resource res;
unsigned long base;
int ret, cs;
if (of_property_read_u32(child, "reg", &cs) < 0) {
dev_err(&pdev->dev, "%s has no 'reg' property\n",
child->full_name);
return -ENODEV;
}
if (of_address_to_resource(child, 0, &res) < 0) {
dev_err(&pdev->dev, "%s has malformed 'reg' property\n",
child->full_name);
return -ENODEV;
}
ret = gpmc_cs_request(cs, resource_size(&res), &base);
if (ret < 0) {
dev_err(&pdev->dev, "cannot request GPMC CS %d\n", cs);
return ret;
}
if (of_platform_device_create(child, NULL, &pdev->dev))
return 0;
dev_err(&pdev->dev, "failed to create gpmc child %s\n", child->name);
return -ENODEV;
}
static int gpmc_probe_dt(struct platform_device *pdev)
{
int ret;
@ -1618,10 +1599,9 @@ static int gpmc_probe_dt(struct platform_device *pdev)
else if (of_node_cmp(child->name, "onenand") == 0)
ret = gpmc_probe_onenand_child(pdev, child);
else if (of_node_cmp(child->name, "ethernet") == 0 ||
of_node_cmp(child->name, "nor") == 0)
of_node_cmp(child->name, "nor") == 0 ||
of_node_cmp(child->name, "uart") == 0)
ret = gpmc_probe_generic_child(pdev, child);
else if (of_node_cmp(child->name, "8250") == 0)
ret = gpmc_probe_8250(pdev, child);
if (WARN(ret < 0, "%s: probing gpmc child %s failed\n",
__func__, child->full_name))

Просмотреть файл

@ -76,6 +76,13 @@ static inline void omap_barrier_reserve_memblock(void)
{ }
#endif
#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER
void set_cntfreq(void);
#else
static inline void set_cntfreq(void)
{
}
#endif
#endif /* __ASSEMBLER__ */
#endif /* OMAP_ARCH_OMAP_SECURE_H */

Просмотреть файл

@ -35,7 +35,6 @@
#include "iomap.h"
#include "common.h"
#include "mmc.h"
#include "hsmmc.h"
#include "prminst44xx.h"
#include "prcm_mpu44xx.h"
#include "omap4-sar-layout.h"
@ -284,59 +283,3 @@ skip_errata_init:
omap_wakeupgen_init();
irqchip_init();
}
#if defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
static int omap4_twl6030_hsmmc_late_init(struct device *dev)
{
int irq = 0;
struct platform_device *pdev = container_of(dev,
struct platform_device, dev);
struct omap_mmc_platform_data *pdata = dev->platform_data;
/* Setting MMC1 Card detect Irq */
if (pdev->id == 0) {
irq = twl6030_mmc_card_detect_config();
if (irq < 0) {
dev_err(dev, "%s: Error card detect config(%d)\n",
__func__, irq);
return irq;
}
pdata->slots[0].card_detect_irq = irq;
pdata->slots[0].card_detect = twl6030_mmc_card_detect;
}
return 0;
}
static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev)
{
struct omap_mmc_platform_data *pdata;
/* dev can be null if CONFIG_MMC_OMAP_HS is not set */
if (!dev) {
pr_err("Failed %s\n", __func__);
return;
}
pdata = dev->platform_data;
pdata->init = omap4_twl6030_hsmmc_late_init;
}
int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
{
struct omap2_hsmmc_info *c;
omap_hsmmc_init(controllers);
for (c = controllers; c->mmc; c++) {
/* pdev can be null if CONFIG_MMC_OMAP_HS is not set */
if (!c->pdev)
continue;
omap4_twl6030_hsmmc_set_late_init(&c->pdev->dev);
}
return 0;
}
#else
int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
{
return 0;
}
#endif

Просмотреть файл

@ -139,6 +139,7 @@ struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
static struct pdata_init pdata_quirks[] __initdata = {
#ifdef CONFIG_ARCH_OMAP3
{ "nokia,omap3-n900", hsmmc2_internal_input_clk, },
{ "nokia,omap3-n9", hsmmc2_internal_input_clk, },
{ "nokia,omap3-n950", hsmmc2_internal_input_clk, },
{ "isee,omap3-igep0020", omap3_igep0020_legacy_init, },

Просмотреть файл

@ -120,7 +120,7 @@ static void omap3_save_secure_ram_context(void)
* will hang the system.
*/
pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_ON);
ret = _omap_save_secure_sram((u32 *)
ret = _omap_save_secure_sram((u32 *)(unsigned long)
__pa(omap3_secure_ram_storage));
pwrdm_set_next_pwrst(mpu_pwrdm, mpu_next_state);
/* Following is for error tracking, it should not happen */

Просмотреть файл

@ -128,7 +128,8 @@ skip_voltdm:
for (i = 0; i < pwrdm->banks; i++)
pwrdm->ret_mem_off_counter[i] = 0;
arch_pwrdm->pwrdm_wait_transition(pwrdm);
if (arch_pwrdm && arch_pwrdm->pwrdm_wait_transition)
arch_pwrdm->pwrdm_wait_transition(pwrdm);
pwrdm->state = pwrdm_read_pwrst(pwrdm);
pwrdm->state_counter[pwrdm->state] = 1;

Просмотреть файл

@ -43,7 +43,7 @@ extern void omap4_prm_vcvp_write(u32 val, u8 offset);
extern u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
defined(CONFIG_SOC_DRA7XX)
defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM43XX)
void omap44xx_prm_reconfigure_io_chain(void);
#else
static inline void omap44xx_prm_reconfigure_io_chain(void)

Просмотреть файл

@ -10,6 +10,7 @@ config ARCH_SOCFPGA
select GENERIC_CLOCKEVENTS
select GPIO_PL061 if GPIOLIB
select HAVE_ARM_SCU
select HAVE_ARM_TWD if SMP
select HAVE_SMP
select MFD_SYSCON
select SPARSE_IRQ

Просмотреть файл

@ -140,6 +140,10 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
/* Requires call-back bindings. */
OF_DEV_AUXDATA("arm,cortex-a9-pmu", 0, "arm-pmu", &db8500_pmu_platdata),
/* Requires DMA bindings. */
OF_DEV_AUXDATA("arm,pl18x", 0x80126000, "sdi0", &mop500_sdi0_data),
OF_DEV_AUXDATA("arm,pl18x", 0x80118000, "sdi1", &mop500_sdi1_data),
OF_DEV_AUXDATA("arm,pl18x", 0x80005000, "sdi2", &mop500_sdi2_data),
OF_DEV_AUXDATA("arm,pl18x", 0x80114000, "sdi4", &mop500_sdi4_data),
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80123000,
"ux500-msp-i2s.0", &msp0_platform_data),
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80124000,

Просмотреть файл

@ -53,6 +53,11 @@
#define A15_BX_ADDR0 0x68
#define A7_BX_ADDR0 0x78
/* SPC CPU/cluster reset statue */
#define STANDBYWFI_STAT 0x3c
#define STANDBYWFI_STAT_A15_CPU_MASK(cpu) (1 << (cpu))
#define STANDBYWFI_STAT_A7_CPU_MASK(cpu) (1 << (3 + (cpu)))
/* SPC system config interface registers */
#define SYSCFG_WDATA 0x70
#define SYSCFG_RDATA 0x74
@ -213,6 +218,41 @@ void ve_spc_powerdown(u32 cluster, bool enable)
writel_relaxed(enable, info->baseaddr + pwdrn_reg);
}
static u32 standbywfi_cpu_mask(u32 cpu, u32 cluster)
{
return cluster_is_a15(cluster) ?
STANDBYWFI_STAT_A15_CPU_MASK(cpu)
: STANDBYWFI_STAT_A7_CPU_MASK(cpu);
}
/**
* ve_spc_cpu_in_wfi(u32 cpu, u32 cluster)
*
* @cpu: mpidr[7:0] bitfield describing CPU affinity level within cluster
* @cluster: mpidr[15:8] bitfield describing cluster affinity level
*
* @return: non-zero if and only if the specified CPU is in WFI
*
* Take care when interpreting the result of this function: a CPU might
* be in WFI temporarily due to idle, and is not necessarily safely
* parked.
*/
int ve_spc_cpu_in_wfi(u32 cpu, u32 cluster)
{
int ret;
u32 mask = standbywfi_cpu_mask(cpu, cluster);
if (cluster >= MAX_CLUSTERS)
return 1;
ret = readl_relaxed(info->baseaddr + STANDBYWFI_STAT);
pr_debug("%s: PCFGREG[0x%X] = 0x%08X, mask = 0x%X\n",
__func__, STANDBYWFI_STAT, ret, mask);
return ret & mask;
}
static int ve_spc_get_performance(int cluster, u32 *freq)
{
struct ve_spc_opp *opps = info->opps[cluster];

Просмотреть файл

@ -20,5 +20,6 @@ void ve_spc_global_wakeup_irq(bool set);
void ve_spc_cpu_wakeup_irq(u32 cluster, u32 cpu, bool set);
void ve_spc_set_resume_addr(u32 cluster, u32 cpu, u32 addr);
void ve_spc_powerdown(u32 cluster, bool enable);
int ve_spc_cpu_in_wfi(u32 cpu, u32 cluster);
#endif

Просмотреть файл

@ -12,6 +12,7 @@
* published by the Free Software Foundation.
*/
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/kernel.h>
@ -32,11 +33,17 @@
#include "spc.h"
/* SCC conf registers */
#define RESET_CTRL 0x018
#define RESET_A15_NCORERESET(cpu) (1 << (2 + (cpu)))
#define RESET_A7_NCORERESET(cpu) (1 << (16 + (cpu)))
#define A15_CONF 0x400
#define A7_CONF 0x500
#define SYS_INFO 0x700
#define SPC_BASE 0xb00
static void __iomem *scc;
/*
* We can't use regular spinlocks. In the switcher case, it is possible
* for an outbound CPU to call power_down() after its inbound counterpart
@ -190,6 +197,55 @@ static void tc2_pm_power_down(void)
tc2_pm_down(0);
}
static int tc2_core_in_reset(unsigned int cpu, unsigned int cluster)
{
u32 mask = cluster ?
RESET_A7_NCORERESET(cpu)
: RESET_A15_NCORERESET(cpu);
return !(readl_relaxed(scc + RESET_CTRL) & mask);
}
#define POLL_MSEC 10
#define TIMEOUT_MSEC 1000
static int tc2_pm_power_down_finish(unsigned int cpu, unsigned int cluster)
{
unsigned tries;
pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster);
BUG_ON(cluster >= TC2_CLUSTERS || cpu >= TC2_MAX_CPUS_PER_CLUSTER);
for (tries = 0; tries < TIMEOUT_MSEC / POLL_MSEC; ++tries) {
/*
* Only examine the hardware state if the target CPU has
* caught up at least as far as tc2_pm_down():
*/
if (ACCESS_ONCE(tc2_pm_use_count[cpu][cluster]) == 0) {
pr_debug("%s(cpu=%u, cluster=%u): RESET_CTRL = 0x%08X\n",
__func__, cpu, cluster,
readl_relaxed(scc + RESET_CTRL));
/*
* We need the CPU to reach WFI, but the power
* controller may put the cluster in reset and
* power it off as soon as that happens, before
* we have a chance to see STANDBYWFI.
*
* So we need to check for both conditions:
*/
if (tc2_core_in_reset(cpu, cluster) ||
ve_spc_cpu_in_wfi(cpu, cluster))
return 0; /* success: the CPU is halted */
}
/* Otherwise, wait and retry: */
msleep(POLL_MSEC);
}
return -ETIMEDOUT; /* timeout */
}
static void tc2_pm_suspend(u64 residency)
{
unsigned int mpidr, cpu, cluster;
@ -232,10 +288,11 @@ static void tc2_pm_powered_up(void)
}
static const struct mcpm_platform_ops tc2_pm_power_ops = {
.power_up = tc2_pm_power_up,
.power_down = tc2_pm_power_down,
.suspend = tc2_pm_suspend,
.powered_up = tc2_pm_powered_up,
.power_up = tc2_pm_power_up,
.power_down = tc2_pm_power_down,
.power_down_finish = tc2_pm_power_down_finish,
.suspend = tc2_pm_suspend,
.powered_up = tc2_pm_powered_up,
};
static bool __init tc2_pm_usage_count_init(void)
@ -269,7 +326,6 @@ static void __naked tc2_pm_power_up_setup(unsigned int affinity_level)
static int __init tc2_pm_init(void)
{
int ret, irq;
void __iomem *scc;
u32 a15_cluster_id, a7_cluster_id, sys_info;
struct device_node *np;

Просмотреть файл

@ -9,6 +9,7 @@
*
* DMA uncached mapping support.
*/
#include <linux/bootmem.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/gfp.h>
@ -162,6 +163,8 @@ static u64 get_coherent_dma_mask(struct device *dev)
u64 mask = (u64)DMA_BIT_MASK(32);
if (dev) {
unsigned long max_dma_pfn;
mask = dev->coherent_dma_mask;
/*
@ -173,6 +176,8 @@ static u64 get_coherent_dma_mask(struct device *dev)
return 0;
}
max_dma_pfn = min(max_pfn, arm_dma_pfn_limit);
/*
* If the mask allows for more memory than we can address,
* and we actually have that much memory, then fail the
@ -180,7 +185,7 @@ static u64 get_coherent_dma_mask(struct device *dev)
*/
if (sizeof(mask) != sizeof(dma_addr_t) &&
mask > (dma_addr_t)~0 &&
dma_to_pfn(dev, ~0) > arm_dma_pfn_limit) {
dma_to_pfn(dev, ~0) > max_dma_pfn) {
dev_warn(dev, "Coherent DMA mask %#llx is larger than dma_addr_t allows\n",
mask);
dev_warn(dev, "Driver did not use or check the return value from dma_set_coherent_mask()?\n");
@ -192,7 +197,7 @@ static u64 get_coherent_dma_mask(struct device *dev)
* fits within the allowable addresses which we can
* allocate.
*/
if (dma_to_pfn(dev, mask) < arm_dma_pfn_limit) {
if (dma_to_pfn(dev, mask) < max_dma_pfn) {
dev_warn(dev, "Coherent DMA mask %#llx (pfn %#lx-%#lx) covers a smaller range of system memory than the DMA zone pfn 0x0-%#lx\n",
mask,
dma_to_pfn(dev, 0), dma_to_pfn(dev, mask) + 1,

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@ -146,7 +146,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
info.flags = VM_UNMAPPED_AREA_TOPDOWN;
info.length = len;
info.low_limit = PAGE_SIZE;
info.low_limit = FIRST_USER_ADDRESS;
info.high_limit = mm->mmap_base;
info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
info.align_offset = pgoff << PAGE_SHIFT;

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@ -87,7 +87,8 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
init_pud = pud_offset(init_pgd, 0);
init_pmd = pmd_offset(init_pud, 0);
init_pte = pte_offset_map(init_pmd, 0);
set_pte_ext(new_pte, *init_pte, 0);
set_pte_ext(new_pte + 0, init_pte[0], 0);
set_pte_ext(new_pte + 1, init_pte[1], 0);
pte_unmap(init_pte);
pte_unmap(new_pte);
}

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@ -336,8 +336,11 @@ static inline void __omap_dm_timer_enable_posted(struct omap_dm_timer *timer)
if (timer->posted)
return;
if (timer->errata & OMAP_TIMER_ERRATA_I103_I767)
if (timer->errata & OMAP_TIMER_ERRATA_I103_I767) {
timer->posted = OMAP_TIMER_NONPOSTED;
__omap_dm_timer_write(timer, OMAP_TIMER_IF_CTRL_REG, 0, 0);
return;
}
__omap_dm_timer_write(timer, OMAP_TIMER_IF_CTRL_REG,
OMAP_TIMER_CTRL_POSTED, 0);

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@ -25,8 +25,9 @@ struct xen_p2m_entry {
struct rb_node rbnode_phys;
};
rwlock_t p2m_lock;
static rwlock_t p2m_lock;
struct rb_root phys_to_mach = RB_ROOT;
EXPORT_SYMBOL_GPL(phys_to_mach);
static struct rb_root mach_to_phys = RB_ROOT;
static int xen_add_phys_to_mach_entry(struct xen_p2m_entry *new)
@ -200,7 +201,7 @@ bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn)
}
EXPORT_SYMBOL_GPL(__set_phys_to_machine);
int p2m_init(void)
static int p2m_init(void)
{
rwlock_init(&p2m_lock);
return 0;

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@ -159,8 +159,7 @@ config NR_CPUS
range 2 32
depends on SMP
# These have to remain sorted largest to smallest
default "8" if ARCH_XGENE
default "4"
default "8"
config HOTPLUG_CPU
bool "Support for hot-pluggable CPUs"

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@ -6,6 +6,8 @@
/dts-v1/;
/memreserve/ 0x80000000 0x00010000;
/ {
model = "Foundation-v8A";
compatible = "arm,foundation-aarch64", "arm,vexpress";

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@ -229,7 +229,7 @@ extern void __iomem *__ioremap(phys_addr_t phys_addr, size_t size, pgprot_t prot
extern void __iounmap(volatile void __iomem *addr);
extern void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size);
#define PROT_DEFAULT (PTE_TYPE_PAGE | PTE_AF | PTE_DIRTY)
#define PROT_DEFAULT (pgprot_default | PTE_DIRTY)
#define PROT_DEVICE_nGnRE (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_ATTRINDX(MT_DEVICE_nGnRE))
#define PROT_NORMAL_NC (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL_NC))
#define PROT_NORMAL (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL))

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@ -56,6 +56,9 @@ static inline void arch_local_irq_disable(void)
#define local_fiq_enable() asm("msr daifclr, #1" : : : "memory")
#define local_fiq_disable() asm("msr daifset, #1" : : : "memory")
#define local_async_enable() asm("msr daifclr, #4" : : : "memory")
#define local_async_disable() asm("msr daifset, #4" : : : "memory")
/*
* Save the current interrupt enable state.
*/

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@ -43,7 +43,7 @@
* Section
*/
#define PMD_SECT_VALID (_AT(pmdval_t, 1) << 0)
#define PMD_SECT_PROT_NONE (_AT(pmdval_t, 1) << 2)
#define PMD_SECT_PROT_NONE (_AT(pmdval_t, 1) << 58)
#define PMD_SECT_USER (_AT(pmdval_t, 1) << 6) /* AP[1] */
#define PMD_SECT_RDONLY (_AT(pmdval_t, 1) << 7) /* AP[2] */
#define PMD_SECT_S (_AT(pmdval_t, 3) << 8)

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@ -25,10 +25,11 @@
* Software defined PTE bits definition.
*/
#define PTE_VALID (_AT(pteval_t, 1) << 0)
#define PTE_PROT_NONE (_AT(pteval_t, 1) << 2) /* only when !PTE_VALID */
#define PTE_FILE (_AT(pteval_t, 1) << 3) /* only when !pte_present() */
#define PTE_FILE (_AT(pteval_t, 1) << 2) /* only when !pte_present() */
#define PTE_DIRTY (_AT(pteval_t, 1) << 55)
#define PTE_SPECIAL (_AT(pteval_t, 1) << 56)
/* bit 57 for PMD_SECT_SPLITTING */
#define PTE_PROT_NONE (_AT(pteval_t, 1) << 58) /* only when !PTE_VALID */
/*
* VMALLOC and SPARSEMEM_VMEMMAP ranges.
@ -254,7 +255,7 @@ static inline int has_transparent_hugepage(void)
#define pgprot_noncached(prot) \
__pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_DEVICE_nGnRnE))
#define pgprot_writecombine(prot) \
__pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_DEVICE_GRE))
__pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_NORMAL_NC))
#define pgprot_dmacoherent(prot) \
__pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_NORMAL_NC))
#define __HAVE_PHYS_MEM_ACCESS_PROT
@ -357,18 +358,20 @@ extern pgd_t idmap_pg_dir[PTRS_PER_PGD];
/*
* Encode and decode a swap entry:
* bits 0, 2: present (must both be zero)
* bit 3: PTE_FILE
* bits 4-8: swap type
* bits 9-63: swap offset
* bits 0-1: present (must be zero)
* bit 2: PTE_FILE
* bits 3-8: swap type
* bits 9-57: swap offset
*/
#define __SWP_TYPE_SHIFT 4
#define __SWP_TYPE_SHIFT 3
#define __SWP_TYPE_BITS 6
#define __SWP_OFFSET_BITS 49
#define __SWP_TYPE_MASK ((1 << __SWP_TYPE_BITS) - 1)
#define __SWP_OFFSET_SHIFT (__SWP_TYPE_BITS + __SWP_TYPE_SHIFT)
#define __SWP_OFFSET_MASK ((1UL << __SWP_OFFSET_BITS) - 1)
#define __swp_type(x) (((x).val >> __SWP_TYPE_SHIFT) & __SWP_TYPE_MASK)
#define __swp_offset(x) ((x).val >> __SWP_OFFSET_SHIFT)
#define __swp_offset(x) (((x).val >> __SWP_OFFSET_SHIFT) & __SWP_OFFSET_MASK)
#define __swp_entry(type,offset) ((swp_entry_t) { ((type) << __SWP_TYPE_SHIFT) | ((offset) << __SWP_OFFSET_SHIFT) })
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
@ -382,15 +385,15 @@ extern pgd_t idmap_pg_dir[PTRS_PER_PGD];
/*
* Encode and decode a file entry:
* bits 0, 2: present (must both be zero)
* bit 3: PTE_FILE
* bits 4-63: file offset / PAGE_SIZE
* bits 0-1: present (must be zero)
* bit 2: PTE_FILE
* bits 3-57: file offset / PAGE_SIZE
*/
#define pte_file(pte) (pte_val(pte) & PTE_FILE)
#define pte_to_pgoff(x) (pte_val(x) >> 4)
#define pgoff_to_pte(x) __pte(((x) << 4) | PTE_FILE)
#define pte_to_pgoff(x) (pte_val(x) >> 3)
#define pgoff_to_pte(x) __pte(((x) << 3) | PTE_FILE)
#define PTE_FILE_MAX_BITS 60
#define PTE_FILE_MAX_BITS 55
extern int kern_addr_valid(unsigned long addr);

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@ -248,7 +248,8 @@ static int brk_handler(unsigned long addr, unsigned int esr,
int aarch32_break_handler(struct pt_regs *regs)
{
siginfo_t info;
unsigned int instr;
u32 arm_instr;
u16 thumb_instr;
bool bp = false;
void __user *pc = (void __user *)instruction_pointer(regs);
@ -257,18 +258,21 @@ int aarch32_break_handler(struct pt_regs *regs)
if (compat_thumb_mode(regs)) {
/* get 16-bit Thumb instruction */
get_user(instr, (u16 __user *)pc);
if (instr == AARCH32_BREAK_THUMB2_LO) {
get_user(thumb_instr, (u16 __user *)pc);
thumb_instr = le16_to_cpu(thumb_instr);
if (thumb_instr == AARCH32_BREAK_THUMB2_LO) {
/* get second half of 32-bit Thumb-2 instruction */
get_user(instr, (u16 __user *)(pc + 2));
bp = instr == AARCH32_BREAK_THUMB2_HI;
get_user(thumb_instr, (u16 __user *)(pc + 2));
thumb_instr = le16_to_cpu(thumb_instr);
bp = thumb_instr == AARCH32_BREAK_THUMB2_HI;
} else {
bp = instr == AARCH32_BREAK_THUMB;
bp = thumb_instr == AARCH32_BREAK_THUMB;
}
} else {
/* 32-bit ARM instruction */
get_user(instr, (u32 __user *)pc);
bp = (instr & ~0xf0000000) == AARCH32_BREAK_ARM;
get_user(arm_instr, (u32 __user *)pc);
arm_instr = le32_to_cpu(arm_instr);
bp = (arm_instr & ~0xf0000000) == AARCH32_BREAK_ARM;
}
if (!bp)

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@ -309,15 +309,12 @@ el1_irq:
#ifdef CONFIG_TRACE_IRQFLAGS
bl trace_hardirqs_off
#endif
irq_handler
#ifdef CONFIG_PREEMPT
get_thread_info tsk
ldr w24, [tsk, #TI_PREEMPT] // get preempt count
add w0, w24, #1 // increment it
str w0, [tsk, #TI_PREEMPT]
#endif
irq_handler
#ifdef CONFIG_PREEMPT
str w24, [tsk, #TI_PREEMPT] // restore preempt count
ldr w24, [tsk, #TI_PREEMPT] // restore preempt count
cbnz w24, 1f // preempt count != 0
ldr x0, [tsk, #TI_FLAGS] // get flags
tbz x0, #TIF_NEED_RESCHED, 1f // needs rescheduling?
@ -507,22 +504,10 @@ el0_irq_naked:
#ifdef CONFIG_TRACE_IRQFLAGS
bl trace_hardirqs_off
#endif
get_thread_info tsk
#ifdef CONFIG_PREEMPT
ldr w24, [tsk, #TI_PREEMPT] // get preempt count
add w23, w24, #1 // increment it
str w23, [tsk, #TI_PREEMPT]
#endif
irq_handler
#ifdef CONFIG_PREEMPT
ldr w0, [tsk, #TI_PREEMPT]
str w24, [tsk, #TI_PREEMPT]
cmp w0, w23
b.eq 1f
mov x1, #0
str x1, [x1] // BUG
1:
#endif
get_thread_info tsk
#ifdef CONFIG_TRACE_IRQFLAGS
bl trace_hardirqs_on
#endif

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@ -282,8 +282,9 @@ ENDPROC(secondary_holding_pen)
* be used where CPUs are brought online dynamically by the kernel.
*/
ENTRY(secondary_entry)
bl __calc_phys_offset // x2=phys offset
bl el2_setup // Drop to EL1
bl __calc_phys_offset // x24=PHYS_OFFSET, x28=PHYS_OFFSET-PAGE_OFFSET
bl set_cpu_boot_mode_flag
b secondary_startup
ENDPROC(secondary_entry)

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@ -636,28 +636,27 @@ static int compat_gpr_get(struct task_struct *target,
for (i = 0; i < num_regs; ++i) {
unsigned int idx = start + i;
void *reg;
compat_ulong_t reg;
switch (idx) {
case 15:
reg = (void *)&task_pt_regs(target)->pc;
reg = task_pt_regs(target)->pc;
break;
case 16:
reg = (void *)&task_pt_regs(target)->pstate;
reg = task_pt_regs(target)->pstate;
break;
case 17:
reg = (void *)&task_pt_regs(target)->orig_x0;
reg = task_pt_regs(target)->orig_x0;
break;
default:
reg = (void *)&task_pt_regs(target)->regs[idx];
reg = task_pt_regs(target)->regs[idx];
}
ret = copy_to_user(ubuf, reg, sizeof(compat_ulong_t));
ret = copy_to_user(ubuf, &reg, sizeof(reg));
if (ret)
break;
else
ubuf += sizeof(compat_ulong_t);
ubuf += sizeof(reg);
}
return ret;
@ -685,28 +684,28 @@ static int compat_gpr_set(struct task_struct *target,
for (i = 0; i < num_regs; ++i) {
unsigned int idx = start + i;
void *reg;
compat_ulong_t reg;
ret = copy_from_user(&reg, ubuf, sizeof(reg));
if (ret)
return ret;
ubuf += sizeof(reg);
switch (idx) {
case 15:
reg = (void *)&newregs.pc;
newregs.pc = reg;
break;
case 16:
reg = (void *)&newregs.pstate;
newregs.pstate = reg;
break;
case 17:
reg = (void *)&newregs.orig_x0;
newregs.orig_x0 = reg;
break;
default:
reg = (void *)&newregs.regs[idx];
newregs.regs[idx] = reg;
}
ret = copy_from_user(reg, ubuf, sizeof(compat_ulong_t));
if (ret)
goto out;
else
ubuf += sizeof(compat_ulong_t);
}
if (valid_user_regs(&newregs.user_regs))
@ -714,7 +713,6 @@ static int compat_gpr_set(struct task_struct *target,
else
ret = -EINVAL;
out:
return ret;
}

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@ -205,6 +205,11 @@ u64 __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID };
void __init setup_arch(char **cmdline_p)
{
/*
* Unmask asynchronous aborts early to catch possible system errors.
*/
local_async_enable();
setup_processor();
setup_machine_fdt(__fdt_pointer);

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@ -160,6 +160,7 @@ asmlinkage void secondary_start_kernel(void)
local_irq_enable();
local_fiq_enable();
local_async_enable();
/*
* OK, it's off to the idle thread for us

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@ -111,12 +111,12 @@ ENTRY(__cpu_setup)
bl __flush_dcache_all
mov lr, x28
ic iallu // I+BTB cache invalidate
tlbi vmalle1is // invalidate I + D TLBs
dsb sy
mov x0, #3 << 20
msr cpacr_el1, x0 // Enable FP/ASIMD
msr mdscr_el1, xzr // Reset mdscr_el1
tlbi vmalle1is // invalidate I + D TLBs
/*
* Memory region attributes for LPAE:
*

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