Simon Glass [Sat, 27 May 2017 13:38:24 +0000 (07:38 -0600)]
fdt: Stop building the old python libfdt module
This is no-longer needed, so stop building it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sat, 27 May 2017 13:38:23 +0000 (07:38 -0600)]
fdt: Makefile: Build python libfdt library if needed
This is needed by binman and dtoc, so if those are being used, check that
the library is present and complain if not. Make sure that any error
appears on stderr so that buildman notices it.
This means that the fallback library (which uses fdtget) will not be used
anymore and swig will need to be installed to use binman / dtoc.
This affects any board which uses binman (currently sunxi and x86) or dtoc
(anything that uses CONFIG_SPL_OF_PLATDATA, currently some rockchip
boards).
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sat, 27 May 2017 13:38:22 +0000 (07:38 -0600)]
fdt: Support use of the new python libfdt library
Use the new library if available, while retaining backwards compatibility
with the old library for now.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sat, 27 May 2017 13:38:21 +0000 (07:38 -0600)]
fdt: dtoc: Add a full set of property tests
The tests don't currently cover all the different property types. Add a
new test which checks each property type in turn, to make sure each has
the correct type and value.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sat, 27 May 2017 13:38:20 +0000 (07:38 -0600)]
fdt: Update fdt_test to use 'dt' instead of 'fdt'
Since fdt is a module it conflicts with this variable name and prevents it
being used in tests. Rename the variable.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sat, 27 May 2017 13:38:19 +0000 (07:38 -0600)]
fdt: Build the new python libfdt module
Build the upstream python libfdt module. At present the legacy module is
still built and is the one that it used. Future work will switch this
over.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sat, 27 May 2017 13:38:18 +0000 (07:38 -0600)]
fdt: Rename existing python libfdt module
Now that this module has been accepted upstream we should stop using the
local U-Boot one. In preparation for this, rename it to indicate it is for
legacy use.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sat, 27 May 2017 13:38:17 +0000 (07:38 -0600)]
fdt: Add all source files to the libfdt build
At present only a subset of source files are build. Add the rest and
refactor this so that a source file list is available also. This will be
used in later commit.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sat, 27 May 2017 13:38:16 +0000 (07:38 -0600)]
fdt: Allow swig options to be provided by Makefile
U-Boot needs to provide some swig include directories. Add this feature.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sat, 27 May 2017 13:38:15 +0000 (07:38 -0600)]
fdt: Move header files into lib/libfdt
These header files are actually part of libfdt. Move them there to make
it easier to build pylibfdt and easier to merge changes from upstream.
Update the license header to use SPDX at the same time.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sat, 27 May 2017 13:38:14 +0000 (07:38 -0600)]
fdt: Use SPDX format for licenses in the libfdt headers
These should follow the UBoot standard. Update them.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sat, 27 May 2017 13:38:13 +0000 (07:38 -0600)]
fdt: Correct cast for sandbox in fdtdec_setup_memory_size()
This gives a warning with some native compilers:
lib/fdtdec.c:1203:8: warning: format ‘%llx’ expects argument of type
‘long long unsigned int’, but argument 3 has type
‘long unsigned int’ [-Wformat=]
Fix it with a cast.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sat, 27 May 2017 13:38:12 +0000 (07:38 -0600)]
pci: Correct cast for sandbox
This gives a warning with some native compilers:
cmd/pci.c:152:11: warning: format ‘%llx’ expects argument of type
‘long long unsigned int’, but argument 3 has type
‘u64 {aka long unsigned int}’ [-Wformat=]
Fix it with a cast.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sat, 27 May 2017 13:38:11 +0000 (07:38 -0600)]
fdt: Add Python bindings
An early version of this is available upstream. Bring it in as a starting
point. This is from dtc upstream commit e56f2b0.
Future work will plumb it into dtoc and remove the now-unnecessary local
libraries.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:10:02 +0000 (20:10 -0600)]
sandbox: Move to use live tree
This updates sandbox to use a live device tree. This means that after
relocation (from board_init_r() onwards) it no-longer uses flat device
tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:10:01 +0000 (20:10 -0600)]
dm: gpio: power: Convert pm8916 drivers to livetree
This PMIC driver (power and GPIO) is used by the sandbox SPMI tests.
Update the drivers to support a live device tree so that the tests pass.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:10:00 +0000 (20:10 -0600)]
dm: test: Fix nit with position of backslash
Line up this backslash with all the others.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:59 +0000 (20:09 -0600)]
dm: sandbox: sysreset: Convert driver to livetree
Update this driver to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:58 +0000 (20:09 -0600)]
dm: sandbox: spi: Convert driver to support livetree
Update this driver to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:57 +0000 (20:09 -0600)]
dm: spi-flash: Convert uclass to livetree
Update the SPI flash uclass to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:56 +0000 (20:09 -0600)]
dm: sandbox: i2c_rtc: Drop fdtdec.h header
This is not needed in this driver. Drop it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:55 +0000 (20:09 -0600)]
dm: sandbox: i2c: Drop fdtdec.h header
This is not needed in this driver. Drop it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:54 +0000 (20:09 -0600)]
dm: spi: Convert uclass to livetree
Update the SPI uclass to support a live device tree. Also adjust
spi_slave_ofdata_to_platdata() to accept a device instead of a blob and
offset.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:53 +0000 (20:09 -0600)]
cros_ec: Update the cros_ec keyboard driver to livetree
Update this driver and key_matrix to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:52 +0000 (20:09 -0600)]
dm: Update the I2C eeprom driver for livetree
Update this driver so that it works with livetree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:51 +0000 (20:09 -0600)]
dm: pci: Update uclass to support livetree
Update the PCI uclass to support livetree. This mostly involves fixing
the address decoding from the device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:50 +0000 (20:09 -0600)]
dm: reset: Update uclass to support livetree
Update the reset domain uclass to support livetree. Fix the xlate() method
which has no callers.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:49 +0000 (20:09 -0600)]
dm: power-domain: Update uclass to support livetree
Update the power domain uclass to support livetree. Fix the xlate() method
which has no callers.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:48 +0000 (20:09 -0600)]
sandbox: phy: Update driver for livetree
Update the sandbox phy driver to support livetree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:47 +0000 (20:09 -0600)]
dm: phy: Update uclass to support livetree
Update the phy uclass to support livetree. Fix the xlate() method
which has no callers.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:46 +0000 (20:09 -0600)]
dm: mailbox: Update uclass to support livetree
Update the mailbox uclass to support livetree. Fix the xlate() method
in all callers.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:45 +0000 (20:09 -0600)]
dm: phy: Update tests to use ut_asserteq()
Use ut_asserteq() to test equality since this gives a better error message
on failure. Also make a few of the tests more specific.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:44 +0000 (20:09 -0600)]
dm: test: Disable the fdt_offset test with livetree
We cannot run this test with livetree since it uses device tree offsets.
Mark it as flat tree only.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:43 +0000 (20:09 -0600)]
dm: test: Separate out the bus DT offset test
We cannot access the device tree via an offset when running in livetree
mode. Separate out that part of the bus' children tests and mark it as
for the flat tree only.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:42 +0000 (20:09 -0600)]
dm: clk: fixed: Update to support livetree
Update the fixed-rate clock driver to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Wed, 31 May 2017 03:47:29 +0000 (21:47 -0600)]
dm: clk: Update uclass to support livetree
Update the clk uclass to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:40 +0000 (20:09 -0600)]
clk: Modify xlate() method for livetree
Update the xlate() method to use ofnode_phandle_args instead of the fdtdec
variant. This will allow drivers to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:39 +0000 (20:09 -0600)]
sandbox: usb: Convert emulators to livetree
Update the sandbox flash and hub USB emulators to support a live device
tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:38 +0000 (20:09 -0600)]
dm: usb: Convert uclass to livetree
Update the usb uclass to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:37 +0000 (20:09 -0600)]
dm: adc: Convert uclass to livetree
Update the adc uclass to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:36 +0000 (20:09 -0600)]
dm: mmc: Convert uclass to livetree
Update the mmc uclass to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:35 +0000 (20:09 -0600)]
dm: regulator: Update fixed regulator to support livetree.
Update this driver to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:34 +0000 (20:09 -0600)]
dm: regulator: Convert regulator uclass to support livetree
Update the regulator uclass to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:33 +0000 (20:09 -0600)]
sandbox: pmic: Convert pmic emulator to support livetree
Update this driver to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:32 +0000 (20:09 -0600)]
dm: pmic: Convert uclass to livetree
Update the pmic uclass and all pmics to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:31 +0000 (20:09 -0600)]
samsung: Move pmic header out of config file
We should not be including a PMIC header file in the board config. Move it
to a C file.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:30 +0000 (20:09 -0600)]
dm: i2c: Convert uclass to livetree
Update the i2c uclass to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:29 +0000 (20:09 -0600)]
string: Add strcspn()
Add an implementation of strcspn() which returns the number of initial
characters that do not match any in a rejection list.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:28 +0000 (20:09 -0600)]
string: Add strchrnul()
This functions works like strchr() but returns the end of the string if
the character is not found. Add an implementation of this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:27 +0000 (20:09 -0600)]
dm: Add more livetree helpers and definitions
Add some definitions and helpers for livetree in the main of.h header
file. These include:
- reading multi-cell integers
- default number of address/size cells
- functions for comparing names
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:26 +0000 (20:09 -0600)]
fdt: Rename a few functions in fdt_support
These two functions have an of_ prefix which conflicts with naming used
in of_addr. Rename them:
fdt_read_number
fdt_support_bus_default_count_cells
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:25 +0000 (20:09 -0600)]
test: Update 'make test' to run more tests
The standard sandbox board cannot run the of-platdata test since it needs
SPL. Also, we should test the flat tree version of sandbox.
Add these tests to the default test script.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:24 +0000 (20:09 -0600)]
sandbox: Add a new sandbox_flattree board
Add a sandbox board to test the non-livetree build (i.e. with
CONFIG_OF_FLAT disabled). This increases our build and test coverage.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:23 +0000 (20:09 -0600)]
cros_ec: Convert to support live tree
Convert this driver to support the live device tree and remove the old
fdtdec support.
The keyboard is not yet converted.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:22 +0000 (20:09 -0600)]
cros_ec: Fix debug() statement in ec_command_inptr()
This prints out the wrong pointers. Fix it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Wed, 31 May 2017 03:47:09 +0000 (21:47 -0600)]
dm: gpio: Add live tree support
Add support for requesting GPIOs with a live device tree.
This involves adjusting the function signature for the legacy function
gpio_request_by_name_nodev(), so fix up all callers.
Signed-off-by: Simon Glass <sjg@chromium.org>
Fixes to stm32f746-disco.c:
Signed-off-by: Tom Rini <trini@konsulko.com>
Simon Glass [Fri, 19 May 2017 02:09:20 +0000 (20:09 -0600)]
dm: gpio: sandbox: Use dev_read...() functions to access DT
Use the new dev_read...() functions to access the device tree, so that a
live tree can be used.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:19 +0000 (20:09 -0600)]
dm: gpio: Drop blank line in gpio_xlate_offs_flags() comment
This is not needed. Drop it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:18 +0000 (20:09 -0600)]
dm: gpio: Refactor to prepare for live tree support
Move the main part of the GPIO request function into a separate function
so that it can be used by the live tree function when added. Update the
xlate method to use a node reference.
Update all GPIO drivers to handle the modified xlate() method.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:17 +0000 (20:09 -0600)]
dm: core: Run tests with both livetree and flat tree
Some tests require either livetree or flat tree. Add flags to allow the
tests to specify this. Adjust the test runner to run with livetree (if
supported) and then flat tree.
Some video tests are quite slow and running on flat tree adds little extra
test value, so run these on livetree only.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:16 +0000 (20:09 -0600)]
dm: test: Add support for running tests with livetree
It is useful to run the driver model tests with both livetree and flat
tree in case something is different between the two. Add this feature to
the test runner.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:15 +0000 (20:09 -0600)]
dm: test: Show the test filename when running
Show the filename of the test being run. Skip the path and show just the
base name.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:14 +0000 (20:09 -0600)]
dm: test: Move test running code into a separate function
We want to run the same test on flat and live trees. In preparation for
this, create a new function which handles running a test.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:13 +0000 (20:09 -0600)]
sandbox: Add a way to reset sandbox state for tests
Running a new test should reset the sandbox state to avoid tests
interferring with each other. Move the existing state-reset code into a
function so it can be used from tests.
Also update the code to reset the SPI devices and adjust the test code to
call it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:12 +0000 (20:09 -0600)]
dm: core: Update uclass_find_device_by_phandle() for livetree
Adjust this function to work with livetree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:11 +0000 (20:09 -0600)]
dm: simple-bus: Add support for livetree
Modify simple-bus to support livetree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:10 +0000 (20:09 -0600)]
dm: regmap: Add support for livetree
Modify regmap to support livetree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:09 +0000 (20:09 -0600)]
dm: core: Add a way to find a device by ofnode
Add a function which looks up a device by its node (either in live tree
or flat tree).
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:08 +0000 (20:09 -0600)]
dm: core: Scan the live tree when setting up driver model
When starting up driver model with a live tree we need to scan the tree
for devices. Add code to handle this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:07 +0000 (20:09 -0600)]
dm: core: Update device_bind_driver_to_node() to use ofnode
Adjust this function to us an ofnode instead of an offset, so it can be
used with livetree. This involves updating all callers.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:06 +0000 (20:09 -0600)]
dm: core: Update lists_bind_fdt() to use ofnode
Adjust this function to use an ofnode instead of an offset, so it can be
used with livetree. This involves updating all callers.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:05 +0000 (20:09 -0600)]
dm: core: Allow binding a device from a live tree
When a live tree is being used we need to record the node that was used to
create the device. Update device_bind_with_driver_data() to support this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:04 +0000 (20:09 -0600)]
dm: core: Implement live tree 'read' functions
When the live tree is supported some functions need to change a little.
Add an implementation which is used when not inlining these functions.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:03 +0000 (20:09 -0600)]
dm: core: Add device-based 'read' functions to access DT
It is common to read a device-tree property from the node associated with
a device. Add convenience functions to do this so that drivers do not need
to deal with accessing the ofnode from the device.
These functions all start with 'dev_read_' to provide consistent naming
for all functions which read information from a device's device tree node.
These are inlined when using the flat DT to save code size. The live tree
implementation is added in a later commit.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:02 +0000 (20:09 -0600)]
dm: core: Add a place to put extra device-tree reading functions
Some functions deal with structured data rather than simple data types.
It makes sense to have these in their own file. For now this just has a
function to read a flashmap entry. Move the data types also.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:01 +0000 (20:09 -0600)]
dm: core: Add address operations on device tree references
Add functions to add addresses in the device tree using ofnode references.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:09:00 +0000 (20:09 -0600)]
fdt: Update fdt_get_base_address() to use const
This function does not change the device tree so adjust it to use const
for this parameter.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:08:59 +0000 (20:08 -0600)]
dm: core: Add livetree address functions
Add functions to access addresses in the device tree. These are brought
in from Linux 4.10.
Also fix up the header guard for fdtaddr.h to avoid confusion.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:08:58 +0000 (20:08 -0600)]
dm: core: Add operations on device tree references
Since U-Boot supports both a live tree and a flat tree, we need an easy
way to access the tree without worrying about which is currently active.
To support this, U-Boot has the concept of an ofnode, which can refer
either to a live tree node or a flat tree node.
For the live tree, the reference contains a pointer to the node (struct
device_node *) or NULL if the node is invalid. For the flat tree, the
reference contains the node offset or -1 if the node is invalid.
Add a basic set of operations using ofnodes. These are implemented by
using either libfdt functions (in the case of a flat DT reference) or
the live-tree of_...() functions.
Note that it is not possible to have both live and flat references active
at the same time. As soon as the live tree is available, everything in
U-Boot should switch to using that. This avoids confusion and allows us to
assume that the type of a reference is simply based on whether we have a
live tree yet, or not.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:08:57 +0000 (20:08 -0600)]
dm: core: Rename of_device_is_compatible()
The of_ prefix conflicts with the livetree version of this function.
Rename it to avoid problems when we add livetree support.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:08:56 +0000 (20:08 -0600)]
dm: Build a live tree after relocation
If enabled, build a live device tree after relocation. This can then be
used by driver model.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:08:55 +0000 (20:08 -0600)]
dm: Add a function to create a 'live' device tree
This function converts the flat device tree into a hierarchical one with
C structures and pointers. This is easier to access.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:08:54 +0000 (20:08 -0600)]
dm: core: Add livetree access functions
Add a basic assortment of functions to access the live device tree. These
come from Linux v4.9 and are modified for U-Boot to the minimum extent
possible. While these functions are now very stable in Linux, it will be
possible to merge in fixes if needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:08:53 +0000 (20:08 -0600)]
dm: core: Add livetree definitions
Add a Kconfig option to enable a live device tree, built at run time from
the flat tree. Also add structure definitions and a root node.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:08:52 +0000 (20:08 -0600)]
Update WARN_ON() to return a value
In linux v4.9 this returns a value. This saves checking the warning
condition twice in some code.
Update the U-Boot version to do this also.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Fri, 19 May 2017 02:08:51 +0000 (20:08 -0600)]
dm: core: Set return value first in lists_bind_fdt()
Adjust the order to make it clear that *devp is set to NULL by default.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Mon, 24 Apr 2017 02:02:11 +0000 (20:02 -0600)]
tegra: Convert MMC to use driver model for operations
Enable CONFIG_DM_MMC_OPS and CONFIG_BLK for all Tegra devices. This moves
Tegra to use driver model fully for MMC.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Mon, 24 Apr 2017 02:02:10 +0000 (20:02 -0600)]
dm: mmc: Rewrite mmc_blk_probe()
This function is called when the MMC block device is being probed. There
is a recursive call in this function since find_mmc_device() itself can
cause the MMC device to be probed.
Admittedly the MMC device should already be probed, since we would not be
probing its child otherwise, but the current code is unnecessarily
convoluted.
Rewrite this to access the MMC structure directly.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Mon, 24 Apr 2017 02:02:09 +0000 (20:02 -0600)]
dm: mmc: Check that drivers have operations
When binding a new MMC device, make sure that it has the required
operations. Since for now we still support *not* having the operations
(with CONFIG_DM_MMC_OPS not enabled) it makes sense to add this check.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Mon, 24 Apr 2017 02:02:07 +0000 (20:02 -0600)]
dm: blk: Improve block device claiming
The intention with block devices is that the device number (devnum field
in its descriptor) matches the alias of its parent device. For example,
with:
aliases {
mmc0 = "/sdhci@
700b0600";
mmc1 = "/sdhci@
700b0400";
}
we expect that the block devices for mmc0 and mmc1 would have device
numbers of 0 and 1 respectively.
Unfortunately this does not currently always happen. If there is another
MMC device earlier in the driver model data structures its block device
will be created first. It will therefore get device number 0 and mmc0
will therefore miss out. In this case the MMC device will have sequence
number 0 but its block device will not.
To avoid this, allow a device to request a device number and bump any
existing device number that is using it. This all happens during the
binding phase so it is safe to change these numbers around. This allows
device numbers to match the aliases in all circumstances.
Add a test to verify the behaviour.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Mon, 24 Apr 2017 02:02:06 +0000 (20:02 -0600)]
dm: blk: Add a function to find the next block device number
At present this code is inline. Move it into a function to allow it to
be used elsewhere.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Mon, 24 Apr 2017 02:02:05 +0000 (20:02 -0600)]
dm: blk: Allow finding block devices without probing
Sometimes it is useful to be able to find a block device without also
probing it. Add a function for this as well as the associated test.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Mon, 24 Apr 2017 02:02:04 +0000 (20:02 -0600)]
dm: mmc: Don't re-init when accessing environment
With driver model MMC is probed automatically when needed. We should not
re-init MMC each time.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sun, 23 Apr 2017 01:10:56 +0000 (19:10 -0600)]
dm: mmc: Don't call board_mmc_power_init() with driver model
We should not call out to board code from drivers. With driver model,
mmc_power_init() already has code to use a named regulator, but the
legacy code path remains. Update the code to make this clear.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Wed, 17 May 2017 23:18:11 +0000 (17:18 -0600)]
dm: core: Adjust device_bind_common() to take an ofnode
This core function will need to work with a live tree also. Update it to
accept an ofnode instead of an offset.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Wed, 17 May 2017 23:18:10 +0000 (17:18 -0600)]
dm: core: Add ofnode to represent device tree nodes
With live tree we need a struct device_node * to reference a node. With
the existing flat tree, we need an int offset. We need to unify these into
a single value which can represent both.
Add an ofnode union for this and adjust existing code to move to this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Wed, 17 May 2017 23:18:09 +0000 (17:18 -0600)]
dm: core: Replace of_offset with accessor (part 2)
At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Wed, 17 May 2017 23:18:08 +0000 (17:18 -0600)]
dm: core: Dont export dm_scan_fdt_node()
This function is only used in one place. It is better to just declare it
internally since there is a simpler replacement for use outside the
driver-model core code.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Wed, 17 May 2017 23:18:07 +0000 (17:18 -0600)]
dm: Fix up inclusion of common.h
It is good practice to include common.h as the first header. This ensures
that required features like the DECLARE_GLOBAL_DATA_PTR macro,
configuration options and common types are available.
Fix up some files which currently don't do this. This is necessary because
driver model will soon start using global data and configuration in the
dm/read.h header file, included via dm.h. The gd->fdt_blob value will be
used to access the device tree and CONFIG options will be used to
determine whether to support inline functions in the header file.
Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Wed, 17 May 2017 23:18:06 +0000 (17:18 -0600)]
atmel: Fix up use of dm_scan_fdt_node()
This function should not be used outside the core driver-model code.
Update it to use dm_scan_fdt_dev() instead.
Signed-off-by: Simon Glass <sjg@chromium.org>