Commit graph

76 commits

Author SHA1 Message Date
Simon Glass
57f54d55bd dm: test: Allow 'dm test' to select a particular test to run
As well as running all tests, it is useful to be able to run a selected test.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
2015-04-18 11:11:30 -06:00
Simon Glass
f4f715360c dm: usb: sandbox: Add an emulator for USB flash devices
This emulator supports USB enumeration and allows a local file to be provided
as the contents of the emulated flash stick. U-Boot can then use the file as
it would a normal device, with all access passing through the usb_stor layer
and the USB stack.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
2015-04-18 11:11:26 -06:00
Simon Glass
019808f97c dm: usb: sandbox: Add a uclass for USB device emulation
With sandbox we want to be able to emulate USB devices so that we can test
the USB stack. Add a uclass to support this. It implements the same
operations as a normal USB device driver, but in this case passes them on
to an emulation driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
2015-04-18 11:11:26 -06:00
Simon Glass
449230f031 dm: usb: Bind generic USB devices when there is no driver
At present USB devices with no driver model driver cannot be seen in the
device list, and we fail to set them up correctly. This means they cannot
be used.

While having real drivers that support driver model for all USB devices
is the eventual goal, we are not there yet.

As a stop-gap, add a generic USB driver which is bound when we do not have
a real driver. This allows the device to be set up and shown on the bus.
It also allows ad-hoc code (such as usb_ether) to find these devices and
set them up.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
2015-04-18 11:11:25 -06:00
Simon Glass
054fe48eb2 dm: usb: Add driver model support for hubs
Adjust the existing hub code to support driver model, and add a USB driver
for hubs.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
2015-04-18 11:11:21 -06:00
Simon Glass
de31213fb8 dm: usb: Add a uclass for USB controllers
Add a uclass that can represent a USB controller. For now we do not create
devices for things attached to the controller. This will be added later.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
2015-04-18 11:11:20 -06:00
Simon Glass
c5785673bc dm: core: Add device children and sibling functions
Add some utility functions to check for children and for the last sibling in
a device's parent.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
2015-04-18 11:11:19 -06:00
Simon Glass
39de843352 dm: core: Rename driver data function to dev_get_driver_data()
The existing get_get_of_data() function provides access to both the driver's
compatible string and its driver data. However only the latter is actually
useful. Update the interface to reflect this and fix up existing users.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
2015-04-18 11:11:19 -06:00
Simon Glass
3479253dad dm: core: Convert driver_bind() to use const
The driver is not modified by driver model, so update driver_bind() to
recognise that.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
2015-04-18 11:11:19 -06:00
Simon Glass
2c03c4633b dm: core: Support allocating driver-private data for DMA
Some driver want to put DMA buffers in their private data. Add a flag
to tell driver model to align driver-private data to a cache boundary so
that DMA will work correctly in this case.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
2015-04-18 11:11:19 -06:00
Simon Glass
a274e9cac5 dm: x86: Add a uclass for an Low Pin Count (LPC) device
On x86 systems this device is commonly used to provide legacy port access.
It is sort-of a replacement for the old ISA bus.

Add a uclass for this, and allow it to have child devices.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:14 -06:00
Joe Hershberger
05c3e68f85 dm: eth: Add basic driver model support to Ethernet stack
First just add support for MAC drivers.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:12 -06:00
Simon Glass
801f4f1bbc dm: x86: pci: Convert coreboot to use driver model for pci
Move coreboot-x86 over to driver model for PCI.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:09 -06:00
Simon Glass
36d0d3b4b4 dm: sandbox: pci: Add a PCI emulation uclass
Since sandbox does not have real devices (unless it borrows those from the
host) it must use emulations. Provide a uclass which permits PCI operations
to be passed through to an emulation device.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-16 19:27:43 -06:00
Simon Glass
ff3e077bd2 dm: pci: Add a uclass for PCI
Add a uclass for PCI controllers and a generic one for PCI devices. Adjust
the 'pci' command and the existing PCI support to work with this new uclass.
Keep most of the compatibility code in a separate file so that it can be
removed one day.

TODO: Add more header file comments to the new parts of pci.h

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-16 19:27:43 -06:00
Simon Glass
02c07b3741 dm: core: Add a uclass pre_probe() method for devices
Some uclasses want to set up a device before it is probed. Add a method
for this.

An example is with PCI, where a PCI uclass wants to set up its private
data for later use. This allows the device's uclass() method to make calls
whcih use that data (for example, read PCI memory regions from device
tree, set up bus numbers).

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-16 19:27:42 -06:00
Simon Glass
e564f054af dm: core: Add dev_get_uclass_priv() to access uclass private data
Add a convenience function to access the private data that a uclass stores
for each of its devices. Convert over most existing uses for consistency
and to provide an example for others.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-16 19:27:42 -06:00
Marek Vasut
66c03151fc dm: Protect device_unbind() with CONFIG_DM_DEVICE_REMOVE
Since device_unbind() is also defined in device-remove.c,
which is compiled in only in case CONFIG_DM_DEVICE_REMOVE
is defined, protect the device_unbind() prototype with the
same CONFIG_DM_DEVICE_REMOVE check.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stefan Roese <sr@denx.de>
Cc: Tom Rini <trini@ti.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-19 07:30:31 -07:00
Peng Fan
c9cac3f841 dm: introduce dev_get_addr interface
Abstracting dev_get_addr can improve drivers that want to
get device's address.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-12 15:17:29 -07:00
Nobuhiro Iwamatsu
59088e4a76 dm: sh: serial: Add support driver model
This adds driver model support with this driver. This was tested by Koelsch
board and Gose board.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-12 15:17:17 -07:00
Ruchika Gupta
31d2b4fd90 DM: crypto/rsa_mod_exp: Add rsa Modular Exponentiation DM driver
Add a new rsa uclass for performing modular exponentiation and implement
the software driver basing on this uclass.

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
CC: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
2015-01-29 17:09:58 -07:00
Simon Glass
83c7e434c9 dm: core: Allow uclass to set up a device's child before it is probed
Some buses need to set up their devices before they can be used. This setup
may well be common to all buses in a particular uclass. Support a common
pre-probe method for the uclass, called before any bus devices are probed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-01-29 17:09:56 -07:00
Simon Glass
081f2fcbd9 dm: core: Allow the uclass to set up a device's child after binding
For buses, after a child is bound, allow the uclass to perform some
processing. This can be used to figure out the address of the child (e.g.
the chip select for SPI slaves) so that it is ready to be probed.

This avoids bus drivers having to repeat the same process, which really
should be done by the uclass, since it is common.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-01-29 17:09:56 -07:00
Simon Glass
dac8db2ce6 dm: core: Allow uclasses to specify private data for a device's children
In many cases the per-child private data for a device's children is defined
by the uclass rather than the individual driver. For example, a SPI bus
needs to store information about each of its children, but all SPI drivers
store the same information. It makes sense to allow the uclass to define
this data.

If the driver provides a size value for its per-child private data, then use
it. Failng that, fall back to that provided by the uclass.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-01-29 17:09:55 -07:00
Simon Glass
9cc36a2b89 dm: core: Add a flag to control sequence numbering
At present we try to use the 'reg' property and device tree aliases to give
devices a sequence number. The 'reg' property is often actually a memory
address, so the sequence numbers thus-obtained are not useful. It would be
better if the devices were just sequentially numbered in that case. In fact
neither I2C nor SPI use this feature, so drop it.

Some devices need us to look up an alias to number them within the uclass.
Add a flag to control this, so it is not done unless it is needed.

Adjust the tests to test this new behaviour.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-01-29 17:09:55 -07:00
Simon Glass
b367053102 dm: core: Add a function to get a device's uclass ID
This is useful to check which uclass a device is in.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-01-29 17:09:55 -07:00
Simon Glass
0118ce7957 dm: core: Add a post_bind method for parents
Allow parent drivers to be called when a new child is bound to them. This
allows a bus to set up information it needs for that child.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-01-29 17:09:55 -07:00
Simon Glass
ba8da9dc43 dm: core: Allow uclasses to specify platdata for a device's children
In many cases the child platform data for a device's children is defined by
the uclass rather than the individual devices. For example, a SPI bus needs
to know the chip select and speed for each of its children. It makes sense
to allow this information to be defined the SPI uclass rather than each
individual driver.

If the device provides a size value for its child platdata, then use it.
Failng that, fall back to that provided by the uclass.

Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
2015-01-29 17:09:55 -07:00
Simon Glass
cdc133bde9 dm: core: Allow parents to have platform data for their children
For buses it is common for parents to need to know the address of the child
on the bus, the bus speed to use for that child, and other information. This
can be provided in platform data attached to each child.

Add driver model support for this, including auto-allocation which can be
requested using a new property to specify the size of the data.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-01-29 17:09:54 -07:00
Simon Glass
040b69af72 dm: core: Improve comments for uclass_first/next_device()
Mention that the devices are probed ready for use.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-01-29 17:09:54 -07:00
Simon Glass
ecc2ed55ee dm: i2c: Add tests for I2C
Add some basic tests to check that the system works as expected.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
2014-12-11 13:18:43 -07:00
Simon Glass
20142019a9 dm: Add a simple EEPROM driver
There seem to be a few EEPROM drivers around - perhaps we should have a
single standard one? This simple driver is used for sandbox testing, but
could be pressed into more active service.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-12-11 13:18:43 -07:00
Simon Glass
c70c71d833 dm: i2c: Add I2C emulation driver for sandbox
In order to test I2C we need some sort of emulation interface. Add hooks
to allow a driver to emulate an I2C device for sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-12-11 13:18:42 -07:00
Simon Glass
c6202d857e dm: i2c: Add a uclass for I2C
The uclass implements the same operations as the current I2C framework but
makes some changes to make it fit driver model better:

- Remove the chip address from API calls
- Remove the address length from API calls
- Remove concept of 'current' I2C bus
- Drop all existing init functions

Acked-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
2014-12-11 13:18:42 -07:00
Tom Rini
dee332ffb7 Merge branch 'master' of git://www.denx.de/git/u-boot-imx 2014-11-24 12:02:12 -05:00
Simon Glass
e33dc221f4 dm: Add a function to bind a device by driver name
In some cases we need to manually bind a device to a particular driver.
Add a function to do this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Acked-by: Heiko Schocher <hs@denx.de>
2014-11-22 10:16:47 +01:00
Simon Glass
479728cb0c dm: core: Add functions to find parent and OF data
Add dev_get_parent() as a convenience to obtain the parent of a device.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>
Acked-by: Heiko Schocher <hs@denx.de>
2014-11-22 10:16:47 +01:00
Simon Glass
2ef249b442 dm: core: Allow access to the device's driver_id data
When the device is created from a device tree node, it matches a compatible
string. Allow access to that string and the associated data.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>
Acked-by: Heiko Schocher <hs@denx.de>
2014-11-22 10:16:45 +01:00
Ye.Li
e3568d2eca DM: thermal: Add imx thermal DM driver
Add a new thermal uclass for thermal sensor and implement the imx
thermal driver basing on this uclass.

Signed-off-by: Ye.Li <B37916@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
2014-11-21 15:30:01 +01:00
Simon Glass
a94f468fa2 dm: Disable dm_warn() in SPL
Since this function can use up quite a bit of space for its strings, disable
it by default in SPL. Use CONFIG_DM_WARN to re-enable it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>
2014-11-21 08:13:17 +01:00
Simon Glass
3ac435d33a dm: Allow device removal features to be dropped
For SPL we don't expect to need to remove a device. Save some code space
by dropping this feature. The board config can define
CONFIG_DM_DEVICE_REMOVE if this is in fact needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>
2014-11-21 08:13:02 +01:00
Masahiro Yamada
d064cbffff dm: serial: use Driver Model for UniPhier serial driver
This commit converts UniPhier on-chip serial driver to driver model.

Since UniPhier SoCs do not have Device Tree support, some board files
should be added under arch/arm/cpu/armv7/uniphier/ph1-*/ directories.
(Device Tree support for UniPhier platform is still under way.)

Now the base address and master clock frequency are passed from
platform data, so CONFIG_SYS_UNIPHIER_SERIAL_BASE* and
CONFIG_SYS_UNIPHIER_UART_CLK should be removed.

Tested on UniPhier PH1-LD4 ref board.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-10-23 21:43:09 -06:00
Masahiro Yamada
86256b796e dm: move platform data headers to include/dm/platform_data
The platform_data definitions are generally referenced from both
drivers and board files.  That is why header files defining
platform_data sturectures are placed in "include" directory,
but our top level "include" directory is already too cluttered.

Let's collect platform_data definitions under the directory
"include/dm/platform_data" like Linux gathers ones around under
"include/linux/platform_data".

This commit moves two header files:

  include/serial_mxc.h -> include/dm/platform_data/serial_mxc.h
  include/serial_pl01x.h -> include/dm/platform_data/serial_pl01x.h

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-10-23 21:43:07 -06:00
Simon Glass
756ac0bb15 test: dm: Support memory leak checking as a core feature
Check the state of the malloc() heap before each test is run, so that tests
can verify that all is well at the end. Provide helper functions to mark
the heap and to check that it returns to its initial state.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-23 19:29:53 -06:00
Simon Glass
da802b9e27 dm: core: Add support for simple-bus
Add a driver for the simple-bus nodes, which allows devices within these
nodes to be bound.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-22 10:36:56 -06:00
Simon Glass
10778398b3 dm: core: Allow a list of devices to be declared in one step
The U_BOOT_DEVICE macro allows the declaration of a single U-Boot device.
Add an equivalent macro to declare an array of devices, for convenience.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-22 10:36:54 -06:00
Simon Glass
84d6cbd302 dm: cros_ec: Add support for driver model
Add support for driver model if enabled. This involves minimal changes
to the code, mostly just plumbing around the edges.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
2014-10-22 10:36:53 -06:00
Simon Glass
4c2dbefde5 dm: sf: Add a uclass for SPI flash
Add a driver model uclass for SPI flash which supports the common
operations (read, write, erase). Since we must keep support for the
non-dm interface, some modification of the spi_flash header is required.

CONFIG_DM_SPI_FLASH is used to enable driver model for SPI flash.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
2014-10-22 10:36:50 -06:00
Simon Glass
c60e1f2547 dm: sandbox: Add a SPI emulation uclass
U-Boot includes a SPI emulation driver already but it is not explicit, and
is hidden in the SPI flash code.

Conceptually with sandbox's SPI implementation we have a layer which
creates SPI bus transitions and a layer which interprets them, currently
only for SPI flash. The latter is actually an emulation, and it should be
possible to add more than one emulation - not just SPI flash.

Add a SPI emulation uclass so that other emulations can be plugged in to
support different types of emulated devices on difference buses/chip
selects.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
2014-10-22 10:36:46 -06:00
Simon Glass
d7af6a4851 dm: spi: Add a uclass for SPI
Add a uclass which provides access to SPI buses and includes operations
required by SPI.

For a time driver model will need to co-exist with the legacy SPI interface
so some parts of the header file are changed depending on which is in use.
The exports are adjusted also since some functions are not available with
driver model.

Boards must define CONFIG_DM_SPI to use driver model for SPI.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
(Discussed some follow-up comments which will address in future add-ons)
2014-10-22 10:36:46 -06:00