Rarely, the driver of one device needs to know about another device
that can be anywhere in the device hierarchy. Current applications
boil down to EEPROMs that store information that is consumed by some
code (e.g. MAC address).
The idea is to give device nodes in the `devicetree.cb` an alias that
can later be used to link it to a device driver's `config` structure.
The driver has to declare a field of type `struct device *`, e.g.
struct some_chip_driver_config {
DEVTREE_CONST struct device *needed_eeprom;
};
In the devicetree, the referenced device gets an alias, e.g.
device i2c 0x50 alias my_eeprom on end
The author of the devicetree is free to choose any alias name that
is unique in the devicetree. Later, when configuring the driver the
alias can be used to link the device with the field of a driver's
config:
chip some/chip/driver
use my_eeprom as needed_eeprom
end
Override devices can add an alias if it does not exist, but cannot
change the alias for a device that already exists.
Alias names are checked for conflicts both in the base tree and in the
override tree.
References are resolved after the tree is parsed so aliases and
references do not need to be in a specific order in the tree.
Change-Id: I058a319f9b968924fbef9485a96c9e3f900a3ee8
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35456
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Make it compulsory to build with all the drivers that are
visible in the board devicetree.cb file.
Change-Id: Ifb783e2f733d5c65c615e5c1879e3e4c7a83e049
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35086
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
This change adds support to sconfig for generating the firmware
configuration field and option definitions in devicetree.cb.
In addition these fields and options can be used to probe for a device
and have that device be disabled if it is not found at boot time.
New tokens:
fw_config: top level token, table can be defined before chips
field: define field in the mask with the start and end bits
option: define option in a field with the value of the field
probe: indicate that a device should probe by field and option
Example:
fw_config
field FEATURE 0 0
option DISABLE 0
option ENABLE 1
end
end
chip drivers/generic/feature
device generic 0 on
probe FEATURE ENABLE
end
end
Variants can add new fields and add new options to existing fields in
overridetree.cb but cannot redefine an existing option.
Devices can have multiple probe tokens, and the device will be considered
to be found if any of them return true.
The output from defining this field are:
1) the various fields and options will be added as macro constants to
static.h and can be used by fw_config for probing.
2) the probe entries will result in a list of fields/options to probe
that is added to the resulting struct device and handled by coreboot.
BUG=b:147462631
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Change-Id: I8aea63e577d933aea09e0d0b09470929cc96e0de
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41440
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This should make it easier to add more includes.
Change-Id: Ib4a25352901408c2b36de4972391df742a0d8037
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41744
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
add_register() contained a duplicate check but only compared the new
key to the first (smallest in order) list member. Fix that and factor
the list handling out so it can be used by other functions.
Change-Id: I5a8346f36fa024351e1282c9681868ecf451b283
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41743
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Picasso has an LPC and eSPI bridge on the same PCI DEVFN. They can both
be active at the same time. This adds a way to specify which devices
belong on which bus.
i.e.,
device pci 14.3 on # - D14F3 bridge
device espi 0 on
chip ec/google/chromeec
device pnp 0c09.0 on end
end
end
device lpc 0 on
end
end
BUG=b:154445472
TEST=Built trembyle and saw static.c contained the espi bus.
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I0c2f40813c05680f72e5f30cbb13617e8f994841
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41099
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
We have the git history which is a more reliable librarian.
Change-Id: Idbcc5ceeb33804204e56d62491cb58146f7c9f37
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41175
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: ron minnich <rminnich@gmail.com>
chip_instance structure currently uses a ref_count to determine how
many devices hold reference to that instance. If the count drops to
zero, then it is assumed that the chip instance is a duplicate in
override tree and has a similar instance that is already overriden in
base device tree.
ref_count is currently decremented whenever a device in override tree
matches the one in base device tree and the registers from the
override tree instance are copied over to the base tree instance. On
the other hand, if a device in override tree does not match any device
in base tree under a given parent, then the device is added to base
tree and all the devices in its subtree that hold pointers to its
parent chip instance are updated to point to the parent's chip
instance in base tree. This is done as part of update_chip_pointers.
However, there are a couple of issues that this suffers from:
a) If a device is present only in override tree and it does not have
its own chip (i.e. pointing to parent's chip instance), then it
results in sconfig emiiting parent's chip instance (which can be the
SoC chip instance) in static.c even though it is unused. This is
because update_chip_pointers() does not call delete_chip_instance()
before reassigning the chip instance pointer.
b) If a device is added under root device only in the override tree
and it does not have its own chip instance (i.e. uses SoC chip
instance), then it results in sconfig emitting a copy of the SoC chip
instance and setting that as chip_ops for this new device in the
override tree.
In order to fix the above issues, this change drops the ref_count
field from chip_instance structure and instead adds a forwarding
pointer `base_chip_instance`. This is setup as per the following
rules:
1. If the instance belongs to base devicetree, base_chip_instance is
set to NULL.
2. If the instance belongs to override tree, then it is set to its
corresponding chip instance in base tree (if present), else set to
NULL.
State of base_chip_instance is then used when emitting chips and
devices using the following rules:
1. If a chip_instance has non-NULL base_chip_instance, then that chip
instance is not emitted to static.c
2. When emitting chip_ops for a device, base_chip_instance is used to
determine the correct chip instance name to emit.
BUG=b:155549176
TEST=Verified that the static.c file generated for base/override tree
combination is correct when new devices without chips are added only
to override tree.
Change-Id: Idbb5b34f49bf874da3f30ebb6a6a0e2d8d091fe5
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41007
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This change moves the assignment of id for chip instance from
new_chip_instance() to emit_chips(). This is similar to the previous
change for moving dev id assignment to happen much later.
This ensures that the same ID gets assigned to a chip when adding
support for device trees which makes it easier to compare static.c
files.
BUG=b:155549176
Change-Id: I3efa9af5ed91123675be42bce1cb389bad19cb62
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41006
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This change drops the id field from struct device as used by
sconfig. It was primarily used for generating unique device names. This
was maintained within device structure so that the order in which the
device tree entries were parsed is clear. Since the ids are assigned
in parsing order, it is problematic when a device is moved from base
devicetree to override tree. The entire parsing order changes which
makes it really difficult to compare what really changed in static.c
file.
By moving the dev name assignment to happen later when doing pass0 of
static.c generation, the difference in static.c file is minimized when
adding support for override trees.
BUG=b:155549176
Change-Id: I31870ace5a2fd7d5f95ab5e30d794c3bc959ed46
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41005
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
It's helpful to see the sibling field, even when it's NULL, when
debugging the static.c output from a devictree.cb file. Ensure the
NULL fields are emitted for fullness.
Change-Id: Ib6d5b8164769a6512e762d5a525c7df1f429c866
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39862
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This CL has changes that allow us to enable a configurable
ramstage, and one change that allows us to minimize PCI
scanning. Minimal scanning is a frequently requested feature.
To enable it, we add two new variables to src/Kconfig
CONFIGURABLE_RAMSTAGE
is the overall variable controlling other options for minimizing the
ramstage.
MINIMAL_PCI_SCANNING is how we indicate we wish to enable minimal
PCI scanning.
Some devices must be scanned in all cases, such as 0:0.0.
To indicate which devices we must scan, we add a new mandatory
keyword to sconfig
It is used in place of on, off, or hidden, and indicates
a device is enabled and mandatory. Mandatory
devices are always scanned. When MINIMAL_PCI_SCANNING is enabled,
ONLY mandatory devices are scanned.
We further add support in src/device/pci_device.c to manage
both MINIMAL_PCI_SCANNING and mandatory devices.
Finally, to show how this works in practice, we add mandatory
keywords to 3 devices on the qemu-q35.
TEST=
1. This is tested and working on the qemu-q35 target.
2. On CML-Hatch
Before CL:
Total Boot time: ~685ms
After CL:
Total Boot time: ~615ms
Change-Id: I2073d9f8e9297c2b02530821ebb634ea2a5c758e
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36221
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jeremy Soller <jeremy@system76.com>
The old logic only uses the type to identify resources, which makes a
resource in override tree overriding the first resource with the same
type (but possibly different index) in base tree, and resources with
same type (but again different index) in override tree overriding each
other.
Resources had better be identified with both their type and index.
Change-Id: I7cd88905a8d6d1c7c6c03833835df2fba83047ea
Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37109
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Let `sconfig` output a C header file with the symbol names that we
generate since 5e2a2cd5e7 (util/sconfig: Expose usable PCI and PNP
device names).
We add another command line argument for the path to the header
file. As the file is similar in nature to our `config.h` we simply
put it in $(obj)/ too.
Change-Id: I8f87288c82f2844b61eba6534797a42b978b47bb
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35488
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
These devices can be accessed directly by symbolname,
without a search and walk through the tree, as they
have static paths.
Change-Id: I711058f5c809fa9bc7ea4333aaebad6847ebdfd4
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31933
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Only needed in ramstage, and only for MP tables.
Change-Id: Ia7c1e153b948aeefa4c3bea4920b02a91a417096
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33922
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
In patch e29a6ac16a (util/sconfig: Add
commonlib/helpers.h) helpers.h has been added to the include-list.
In headers.h we have a definition for __unused:
On a host system environment where glibc-headers-2.12-1.212 is
installed, a file included by <sys/stat.h> called bits/stat.h have the
following content on line 105 and onwards:
long int __unused[3];
where the mentioned part is part of the structure called struct stat.
If we include commonlib/helpers.h _before_ <sys/stat.h>, the symbol for
__unused will be defined by the preprocessor to be
'__attribute__((unused))', therefore the above mentioned structure member
will be expanded by the preprocessor to be
'long int __attribute__((unused))[3];', which is not a valid C syntax
and therefore produces a compile error for sconfig tool.
To handle this case we need to make sure commonlib/helpers.h is included
_after_ <sys/stat.h>. As the needed part of stat.h (which is
struct stat) is only used in main.c it is safe to move the include from
sconfig.h directly into main.c while taking care of the order.
Change-Id: I9e6960a318d3dd999e1e9c1df326d67094f3b5ce
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34236
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
With DEVTREE_EARLY we could create incomplete device
objects with topology links removed to reduce footprint
for bootblock.
Declare everything with 'static __unused DEVTREE_CONST'
to avoid compiler errors and to not expose unusable
device object names to global scope.
Change-Id: Ie4cb9e75f179f44edf4f8256ad8320bc2d4ae71a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31931
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
When using -Werror=old-style-declaration, gcc reports an error:
"'static' is not at beginning of declaration"
Tested on 945G-M4 board.
Change-Id: I7216a4fab2d5878066c871166e6a481d1f201a9d
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32900
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Add the new field 'smbios_slot_desc', which takes 2 to 4 arguments.
The field is valid for PCI devices and only compiled if SMBIOS table
generation is enabled.
smbios_slot_desc arguments:
1. slot type
2. slot lenth
3. slot designation (optional)
4. slot data width (optional)
Example:
device pci 1c.1 on
smbios_slot_desc "21" "3" "MINI-PCI-FULL" "8"
end # PCIe Port #2 Integrated Wireless LAN
Tested on Lenovo T520.
Change-Id: If95aae3c322d3da47637613b9a872ba1f7af9080
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32307
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
If override tree does not have any device, then the chip info
structure in it cannot be associated with the correct device and ends
up being added as a standalone chip info structure without any device
actually using it. This change prevents this condition by throwing an
error during compilation.
BUG=b:130342895
Change-Id: I7b8bb6b3228030a465976ca32ce8ef63f41365dd
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32289
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
For devices supporting both Linux and Windows, we may find some ACPI
devices that only need drivers in Linux and should not even be shown in
Windows Device Manager UI.
The new 'hidden' keyword in device tree 'device' statement allows
devices sharing same driver to call acpi_gen_writeSTA with different
values.
BUG=b:72200466
BRANCH=eve
TEST=Builds and boots properly on device eve
Change-Id: Iae881a294b122d3a581b456285d2992ab637fb8e
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/28566
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
"ops" field was used in device structure only to add
default_dev_ops_root for root device. It was always set to NULL for
all other devices. This change gets rid of ops field from struct
device and instead hardcodes default_dev_ops_root in pass1 for root
device.
BUG=b:80081934
TEST=Verified that static.c generated with and without this change is
exactly the same.
Change-Id: I0848788610c2ed27274daf4920de3068a9784d4c
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/27209
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This change adds support to allow variants to override the devices and
properties in base device tree by providing an override device
tree. It works as follows:
1. Both base and override device trees are parsed from provided input
files.
2. Walk through the trees in lockstep fashion using depth-first
traversal checking if a node in override tree has a matching node in
base tree.
- If matching node is found, then update the properties of base node
using the override node. Continue walking the children of the nodes.
- If matching node is not found, then copy the entire override
subtree of the node under the current base parent. In addition to
that, chip instance pointers of the nodes in override tree need to be
updated if they were pointing to the override parents chip instance.
Since chip always expects a device to be present, it leads to a
side-effect that overriding chip registers requires that a device is
always provided for the chip in the override tree as well.
BUG=b:80081934
Change-Id: I6604e4f8abe3fc48240e942fea32da96031e1e46
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/27206
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This change allows sconfig utility to accept an extra optional
parameter to specify override device tree that can be used to override
the properties or add new devices in addition to that provided by base
device tree. This is helpful for variants that share most of the
devicetree but have to override certain registers or add some devices
which might not be applicable to base devicetree.
In order to support the override devicetree, following changes are
made in this CL:
1. override_root_dev and override_root_bus are provided.
2. main() function is updated to accept an optional argument.
3. If override device file is provided, then parse_devicetree is
called for override_devtree as well.
This change in itself does not provide the override feature. It is
only a small step towards the final goal. The override devicetree
parsed by sconfig is currently unused.
BUG=b:80081934
Change-Id: I477e038c8922ae1a9ed5d8bf22a5f927a19a69c7
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/26689
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
In preparation to allow devicetree overrides, it will be necessary to
use the same parsing functions to prepare two separate parse
trees. This change does the following things:
1. Updates root device and bus names to add base_ prefix.
2. Adds a function parse_devicetree that sets the root_parent and
linenum before calling yyparse().
3. Updates all uses of root_dev to refer to the next base_root_dev.
BUG=b:80081934
TEST=Verified that static.c generated for all boards built using
abuild is the same with and without this change.
Change-Id: I403a90c1ebf07ac66115ddfe137daf0980dc1a18
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/27017
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This change gets rid of rescnt member in struct device since it is
redundant. "res" member can be used to determine if resource list is
present or not.
BUG=b:80081934
TEST=Verified that static.c generated with and without this CL is
exactly the same for all boards built using abuild.
Change-Id: I73a2361686ad1130716a7d29576f2d02b9ed33c1
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/26806
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This change re-factors the device structure in parse tree to be able
to support multidev devices just like non-multidev devices.
With this change, every device has a bus under it which is the parent
of all devices that fall on the bus. If there are duplicate entries in
the devicetree, then there will be multiple buses under the device and
each bus will have its own set of children.
The tree starts out with a root device which has a root bus under
it. This is a special device which is created statically and its
parent is its own root bus. When parsing the device tree file, devices
get added under the root bus as children.
Since this change re-organizes the way devicetree is represented, it
gets rid of latestchild and next_sibling pointers from struct
device. Also, the tree traversal to generate static.c is changed to
breadth-first walk instead of using the next_sibling.
BUG=b:80081934
TEST=Verified using abuild that all boards compile successfully.
Change-Id: Ic8c8a73a247e8e992ab6b1b2cc3131e06fa2e5a1
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/26800
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This change updates queue handling routines to be more generic so that
it can be used by more than just chip queue. Additionally, it provides
functions to dequeue element from head and peek head of a queue which
will be used in a follow-up commit.
BUG=b:80081934
TEST=Verified that abuild compiles successfully for all boards.
Change-Id: Ibd2de85b48c5d4e2790bf974ea3bb1bd387f66ee
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/26802
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
During compilation sconfig/main.c gives an error regarding number of
arguments passed in fprintf.
BUG=none
BRANCH=none
TEST=check if compilation warning has been fixed
Change-Id: Ia769cc606a1e3f7e1188cd82235442493d37f664
Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Reviewed-on: https://review.coreboot.org/26972
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This change gets rid of unused 3rd parameter chips to the function
walk_device_tree.
BUG=b:80081934
TEST=Verified that abuild compiles successfully for all boards.
Change-Id: I255ff030562073b16310fc22a0981808bf2c062f
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/26801
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Now that chips and devices are treated differently and the device tree
actually contains only devices, next and nextdev are exactly the same
for all devices in the tree. This change gets rid of nextdev pointer
and updates all uses of nextdev to next.
BUG=b:80081934
TEST=Verified that static.c generated for all boards built by abuild
is same with and without this change.
Change-Id: Ie50b3d769a78fe0beddba2e5551441b43cb212a2
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/26741
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Now that chips and devices are treated differently in sconfig, this
change gets rid of struct header and add_header function which were
responsible for maintaining list of headers that need to be added to
static.c.
Instead, struct chip is re-factored into struct chip and
struct chip_instance, where chip is a list of unique chips required by
the mainboard whereas chip_instance is an instance of the chip. One
chip can have multiple instances dependending upon the devices in the
system. Also, struct device is updated to hold a pointer to chip
instance instead of the chip structure. This unique list of chips is
then used to add appropriate headers to static.c
BUG=b:80081934
TEST=Verified using abuild that all boards compile successfully.
Change-Id: I6fccdf7c361b4f55a831195adcda9b21932755aa
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/26739
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add a helper function s_alloc (sconfig alloc) that allocates memory
using calloc to get 0 initialized memory and checks to ensure it is
not NULL.
BUG=b:80081934
Change-Id: I56a70cf4865c50ed238226ace86e867bb1ec53db
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/26738
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
The only reason bus pointer existed in device structure in sconfig was
to allow a node to point to the parent which could be a chip and bus
which is the true parent in device tree hierarchy. Now that chip is no
longer a device, there is no need for separate bus and parent
pointers. This change gets rid of the redundant bus pointer in struct
device in sconfig.
BUG=b:80081934
TEST=Verified that static.c generated for all boards built by abuild
is same with and without this change.
Change-Id: I21f8fe1545a9ed53d66d6d4462df4a5d63023844
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/26736
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This change removes call to add_header from parsing functions and
moves it to a local function within main.c. It also adds a new
function emit_headers that is responsible for creating the linked list
for chip headers and emitting those to static.c
BUG=b:80081934
TEST=Verified that static.c for all files compiled using abuild is the
same with and without this change.
Change-Id: I24d526e81323115d3cc927242a4b9e49414afbe0
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/26726
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This change adds a new structure "struct chip" to identify elements of
type chip rather than re-using the structure for device. Until now
chip was treated as a device while generating the parse tree and then
device tree postprocessing skipped over all the chip entries in
children and sibling pointers of device nodes.
With this change, the device tree will only contain struct device in
the parsed tree. It helps by avoiding unnecessary pointers to chip
structure as children or next_sibling and then skipping those elements
in post processing. Every device can then hold a pointer to its chip.
When generating static.c, chip structure is emitted before device
structure to ensure that the device structure has chip within its
scope. Externally, the only visible change in static.c should be the
order in which chip/device elements are emitted i.e. previously all
chips under a particular device were emitted to static.c and then the
devices using those chips. Now, all chips are emitted before all the
devices in static.c
BUG=b:80081934
TEST=Verified that abuild is successful for all boards. Also, verified
that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is
unchanged from before in node definitions.
Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/26720
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit adds support for describing USB ports in devicetree.cb.
It allows a USB port location to be described in the tree with
configuration information, and ACPI code to be generated that
provides this information to the OS.
A new scan_usb_bus() is added that will scan bridges for devices so
a tree of ports and hubs can be created.
The device address is computed with a 'port type' and a 'port id'
which is flexible for SOC to handle depending on their specific USB
setup and allows USB2 and USB3 ports to be described separately.
For example a board may have devices on two ports, one with a USB2
device and one with a USB3 device, both of which are connected to an
xHCI controller with a root hub:
xHCI
|
RootHub
| |
USB2[0] USB3[2]
device pci 14.0 on
chip drivers/usb/acpi
register "name" = ""Root Hub""
device usb 0.0 on
chip drivers/usb/acpi
register "name" = ""USB 2.0 Port 0""
device usb 2.0 on end
end
chip drivers/usb/acpi
register "name" = ""USB 3.0 Port 2""
device usb 3.2 on end
end
end
end
end
Change-Id: I64e6eba503cdab49be393465b535e139a8c90ef4
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/26169
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Add support for a mmio resource in the devicetree to allow
memory-mapped IO addresses to be assigned to given values.
AMD platforms perform a significant amount of configuration through
these MMIO addresses, including I2C bus configuration.
BUG=b:72121803
Change-Id: I5608721c22c1b229f527815b5f17fff3a080c3c8
Signed-off-by: Justin TerAvest <teravest@chromium.org>
Reviewed-on: https://review.coreboot.org/23319
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
The devicetree data structures have been available in more than just
ramstage and romstage. In order to provide clearer and consistent
semantics two new macros are provided:
1. DEVTREE_EARLY which is true when !ENV_RAMSTAGE
2. DEVTREE_CONST as a replacment for ROMSTAGE_CONST
The ROMSTAGE_CONST attribute is used in the source code to mark
the devicetree data structures as const in early stages even though
it's not just romstage. Therefore, rename the attribute to
DEVTREE_CONST as that's the actual usage. The only place where the
usage was not devicetree related is console_loglevel, but the same
name was used for consistency. Any stage that is not ramstage has
the const C attribute applied when DEVTREE_CONST is used.
Change-Id: Ibd51c2628dc8f68e0896974f7e4e7c8588d333ed
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/19333
Tested-by: build bot (Jenkins)
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Update sconfig lex and yacc files to add support for a new "SPI" device
type in the devicetree. SPI device takes only parameter i.e. chip select
number for the device on the SPI bus.
Re-generate the shipped files for sconfig using flex 2.6.0 and bison
3.0.4 (make CONFIG_SCONFIG_GENPARSER=1). Clean up local paths that leak
into generated files.
BUG=chrome-os-partner:59832
BRANCH=None
TEST=Compiles successfully.
Change-Id: If0831e25b3e4ed87827ad92356d7bf47b6387884
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/18339
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Change-Id: Idfd1bd8240413026b992ae1382a57bccf9d8ddb5
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16082
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
The mainboard chip.h files were (mostly) removed long ago.
Change-Id: I1d5a9381945427c96868fa17756e6ecabb1048b2
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16080
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
The command line parameters for these modes haven't worked in two
years and nobody noticed. They're obviously not getting used, so
remove them.
TEST=Generate static.c before and after the change, verify they're
identical.
Change-Id: I1d746fb53a2f232155f663f4debc447d53d4cf6b
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16079
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Instead of having directories and file names hardcoded, pass in the full
path and filename of both the input and output files.
In the makefile, create variables for these values, and use them in
places that previously had the names and paths written out.
Change-Id: Icb6f536547ce3193980ec5d60c786a29755c2813
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16078
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Instead of forcing the hardcoded 'devicetree.cb' filename under the
mainboard directory, this allows mainboards to select a filename for
the devicetree file.
This allows mainboard variants that need to use different devicetree
files to live under the same directory.
Change-Id: I761e676ba5d5f70d1fb86656b528f63db169fcef
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/12529
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Add support for a basic generic device in the devicetree to bind to a
device that does not have a specific bus, but may need to be described
in tables for the operating system. For instance some chips may have
various GPIO connections that need described but do not fall under any
other device.
In order to support this export the basic 'scan_static_bus()' that can
be used in a device_operations->scan_bus() method to scan for the generic
devices.
It has been possible to get a semi-generic device by using a fake PNP
device, but that isn't really appropriate for many devices.
Also Re-generate the shipped files for sconfig. Use flex 2.6.0 to avoid
everything being rewritten. Clean up the local paths that leak into the
generated configs.
Change-Id: If45a5b18825bdb2cf1e4ba4297ee426cbd1678e3
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14789
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Leroy P Leahy <leroy.p.leahy@intel.com>
Use the second token for an i2c device entry in devicetree.cb to
indicate if it should use 10-bit addressing or 7-bit. The default if
not provided is to use 7-bit addressing, but it can be changed to
10-bit addressing with the ".1" suffix. For example:
chip drivers/i2c/generic
device i2c 3a.1 on end
end
Change-Id: I1d81a7e154fbc040def4d99ad07966fac242a472
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14788
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Nico Huber