All nodes have a 'children' key.
Also simplify a bit. The loop is copying a dictionary verbatim.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
'/foo' was turned into ''. Turn it into '/' instead. That's how the root
is represented in 'reduced' too.
Also remove some code from get_addr_size_cells() that was only there to
work around the bug.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
It's confusing that "address" is often used within the same function to
refer to both node paths and e.g. address cells.
Make things easier to understand by calling /foo/bar a path instead.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
- Remove dead "if 'props' in nodes" check
- Rename the 'nodes' parameter to 'node'. It represents a single node.
- Use a defaultdict(int) for 'last_used_id' (makes unset keys give 0)
- Use a global for 'last_used_id'
- Move some related code so it appears together
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
DT_FLASH_AREA_<X>_DEV should be the label of the flash controller. For
flashes that are "jedec,spi-nor" the flash itself is considered the
controller. For "soc-nv-flash" the parent of the flash is assumed to be
the controller.
Rework the logic in how we determined DT_FLASH_AREA_<X>_DEV to handle
both cases.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Previously, all_compats() returned a dictionary mapping nodes to their
'compatible' values. This dictionary was then (only) used to generate a
set() of all 'compatible' strings.
Save a step and get rid of some code by having all_compats() return a
set() with all 'compatible' strings directly.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
- Rename to all_compats(). The "compats" part is consistent with
elsewhere.
- Don't require an empty dictionary to be passed in. Build the
result within the function instead.
- Use more specific names (k, v -> child_name, child_node)
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
It creates the global 'phandles' dictionary. get_*() makes it sound like
it returns a value.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
It creates the global 'reduced' dictionary. get_*() makes it sound like
it returns a value.
Fix a comment that might make people think the global dictionaries are
Python lists too.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Its possible that a reg property is address only. If that's the case we
should produce any alias information for the size. We should check
nr_size_cells to decide to handle the alias case or not.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
We generate the following FLASH prefixed defines:
FLASH_AREA_MCUBOOT_LABEL
FLASH_AREA_MCUBOOT_OFFSET
FLASH_AREA_MCUBOOT_OFFSET_0
FLASH_AREA_MCUBOOT_READ_ONLY
FLASH_AREA_MCUBOOT_SIZE
FLASH_AREA_MCUBOOT_SIZE_0
Now we generate DT_ prefixed versions:
DT_FLASH_AREA_MCUBOOT_LABEL
DT_FLASH_AREA_MCUBOOT_OFFSET
DT_FLASH_AREA_MCUBOOT_OFFSET_0
DT_FLASH_AREA_MCUBOOT_READ_ONLY
DT_FLASH_AREA_MCUBOOT_SIZE
DT_FLASH_AREA_MCUBOOT_SIZE_0
And will deprecate the non DT_ prefixed versions in the future. We keep
them around as aliases for the time being.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
We generate the following FLASH prefixed defines:
FLASH_LABEL
FLASH_ERASE_BLOCK_SIZE
FLASH_WRITE_BLOCK_SIZE
Now we generate DT_ prefixed versions:
DT_FLASH_LABEL
DT_FLASH_ERASE_BLOCK_SIZE
DT_FLASH_WRITE_BLOCK_SIZE
And will deprecate the non DT_ prefixed versions in the future. We keep
them around as aliases for the time being.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Replace generating CONFIG_ symbols with DT_ symbols for chosen
properties like 'zephyr,console' or 'zephyr,bt-mon-uart'. We now use a
kconfigfunctions (dt_str_val) to extract the info from dts into Kconfig.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Since we know do DTS before Kconfig we should try and remove dts from
creating Kconfig namespaced symbols and leave that to Kconfig. So
rename CONFIG_CCM_<FOO> to DT_CCM_<FOO>.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Returns the empty string for '/foo' and '/', but the old version did
that too, so maybe it's intended.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
This Patch add functionality for automatic generation of the flash map
using DTS description. Automatic generation allows to replace
C-hardcoded flash_map.
We generate a set of defines based on the index of a partiion:
#define DT_FLASH_AREA_<IDX>_OFFSET 0
#define DT_FLASH_AREA_<IDX>_SIZE 131072
#define DT_FLASH_AREA_<IDX>_DEV "FLASH_CTRL"
#define DT_FLASH_AREA_<IDX>_LABEL MCUBOOT
Additionally we also define:
#define DT_FLASH_AREA_NUM 4
and:
#define DT_FLASH_AREA_<PARTNAME>_ID 0
Signed-off-by: Findlay Feng <i@fengch.me>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Less spammy and as easy to understand ("label" seems a bit confusing
though, but it's consistent with other code).
Also simplify some surrounding code, and clean up the implementation of
str_to_label() a bit.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Pass the dictionary of definitions directly. Shorter and clearer.
Also get rid of some other temporary variables, a redundant str() call,
and some mysterious commented-out code in _extract_flash().
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
- The 'props' key is known to exist (and 'if enabled == ...:' would
crash if it ever was missing)
- 'd' is always a dictionary
- There's no need to test if d['children'] is non-empty before looping
through it
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
- The 'props' key is known to exist (and 'if enabled == ...:' would
crash if it ever was missing)
- 'd' is always a dictionary
- There's no need to test if d['children'] is non-empty before looping
through it
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
dict.get(key) signals to people reading the code that you're not sure
whether the key exists. It returns None if it doesn't.
When the key is known to exist, dict[key] should be used. This also
helps catch bugs by raising an exception if the key is missing.
Similarly, whether a key in a dict should be tested with
if key in dict:
instead of with
if dict.get(key):
The second version signals that you both want to make sure that the
exists and that it's truthy (e.g., non-empty). That's confusing if a
simple existence check was meant.
There seems to be a bug in output_keyvalue_lines() where
fd.write("%s=%s\n" % (entry, defs[node].get(a)))
can end up writing '...=None'. Removing the .get() makes it throw an
exception instead. Keep the .get() for now and don't attempt to fix the
bug.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
dts will now generate DT_SRAM_BASE_ADDRESS, DT_SRAM_SIZE,
DT_FLASH_BASE_ADDRESS, and DT_FLASH_SIZE defines. Kconfig can utilize
these defines to set defaults for the CONFIG_ variants.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
As a step to completing removing use of Kconfig defines in dts files we
need to change how we configure/set CONFIG_FLASH_LOAD_{OFFSET,SIZE}.
Previously we would set them based on how the chosen property
'zephyr,code-partition' was set to. If 'zephyr,code-partition' wasn't
set we would default the values to 0. We had some generic overlay logic
which would define 'zephyr,code-partition' based on
CONFIG_BOOTLOADER_MCUBOOT.
Going forward if the DTS has 'zephyr,code-partition' set we will
generate DT_CODE_PARTITION_OFFSET & DT_CODE_PARTITION_SIZE defines. We
will leave it to Kconfig to set CONFIG_FLASH_LOAD_OFFSET &
CONFIG_FLASH_LOAD_SIZE.
We introduce a python script that allows Kconfig to extract data from
the DTS and thus we can utilize DT_CODE_PARTITION_OFFSET and
DT_CODE_PARTITION_SIZE values to set defaults for
CONFIG_FLASH_LOAD_OFFSET & CONFIG_FLASH_LOAD_SIZE.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Rework extract_{controller,cells} so they aren't recursive. As part of
this change we take the flat cell array property and build a proper list
based on what the number of cells each element would represent.
Fixes#12724
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Because of differents in dtc versions the output of a list property may
vary. We would flatten the list of lists to a single list to match how
older dtc versions did things. Rather than doing that flattening in
multiple places, move it to get_reduced() so we do it just once.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add support to generation script to generate defines for GPIO CS
[WIP], need to clarify some issues on how CS's look when we mix GPIO-CS
and HW CS.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add the ability to extract just a single instance from extract_cells and
extract_controller. This lets us pass in a prop_values like:
cs-gpios = < 0x02 0x11 0x00 >, < 0x03 0x05 0x00 >;
and extract just index = 1 if we want < 0x03 0x05 0x00 >.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Move extract_cells and extract_controller functions into globals so they
can be utilized outside of just the main extract_dts_includes script.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The Intel S1000 board has a SPI flash that isn't directly MMIO
addressable. For this case we shouldn't generate CONFIG_FLASH_SIZE or
CONFIG_FLASH_BASE_ADDRESS.
We use the heuristic of assuming if the flash node #size-cells is 0, its
a SPI flash. Than if the parent node (SPI controller) has only a single
reg element we assume its a non-MMIO addressable SPI flash. If there is
more than one reg element we assume the last reg element is the MMIO
address region for access to the flash.
Fixes#12530
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add support to generate defines of the form
DT_<COMPAT>_<INSTANCE>_<PROP>. The idea is that we can utilize this in
drivers to remove the need for dts_fixup.h. The <INSTANCE> value is
determined by the script and starts at 0 and counts up for each instance
of a given <COMPAT>.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
If an aliases already exists in the defs we should filter it out. Also
if an alias exists in the new_def we should filter the alias out.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
We need to refactor how we determine CONFIG_FLASH_{SIZE,BASE_ADDRESS}
for when we have a QSPI that is memory mapped. "zephyr,flash" is going
to point the actual flash component that will be on a SPI bus and thus
the device node's reg property tells us which CS on the SPI bus its on,
not the memory mapped address/size of the flash.
So we make a few assumptions to handle this case:
1. If the #size-cells for the flash node is 0, we assume its a QSPI
memory mapped flash
2. That the QSPI memory mapped node (parent of what "zephyr,flash" is
point to, will contain a reg propery where the second reg pair will
be the memory mapped region for the flash.
We move handling of CONFIG_FLASH_{SIZE,BASE_ADDRESS} into flash.extract
so its all in one place.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The original version of get_binding didn't handle the case of having a
child node on a SPI or I2C device node. The example is a SPI flash and
having a partition node under that.
Re-work the binding lookup logic to first look in the master bindings
dict, and if not found there we assume it must be in the bus specific
dictionary, and we can use the parent node to find the bus type.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
There are cases in which we get the parents compat and thus we might
have a binding available for the actual node. An example is having a
SPI or I2C controller with a child node, but that node doesn't have a
binding associated with it. We'll end up getting the parent compat, so
return the parent binding in this case.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
For devices on buses like I2C or SPI its possible that a sensor might
support being on either bus type. In the dts we can tell this by
looking at the parent bus of the device. Its useful for a driver to
know this so can we build support into the driver accordingly.
For example if the LSM6DSL sensor ("st,lsm6dsl") is in the dts on a spi
bus we now generate:
#define DT_ST_LPS22HB_PRESS_BUS_SPI 1
Its possible that a system exists in which multiple of the same sensor
exist but on different busses, so drivers should handle that case
accordingly. For the LSM6DSL example we'd end up with:
#define DT_ST_LPS22HB_PRESS_BUS_I2C 1
#define DT_ST_LPS22HB_PRESS_BUS_SPI 1
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
There are a number of cases in which we a sensor can be either connected
on I2C or SPI. We've been treating these cases as different compatiable
properties, but they really should use the same compatiable and just
determine the info based on the parent bus in the device tree. We can
now support having two different binding files for the same compatiable
to handle the case of a sensor supporting either I2C or SPI as how its
connected.
We put "sensor" nodes in a bus specific dict bus_bindings[bus] that
we can than lookup later based on the DTS and determining the bus type
that the "sensor" node is on.
Fixes#11375
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Have the yaml_list now have 'node', 'bus', and 'compat' information
instead of just the 'node' info. For now we have all YAML nodes under
yaml_list['node'], however this will change to support sensors that
can be on I2C or SPI, since they will have the same compat, but
different YAML nodes.
This also introduces yaml_list['bus'] which has YAML nodes for any
compatiables on a given 'parent' bus (ie, 'i2c', or 'spi').
Finally, we also have yaml_list['compat'] with all the compatiables
that we parsed and matched to a YAML.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
