This patch extends the available device paths with a new device 'mdio'.
MDIO is the 'Management Data Input/Output' called interface which is
used to access an Ethernet PHY behind a MAC to change settings. The real
payload data path is not handled by this interface.
To address the PHY correctly on the MDIO bus, there is a 5 bit address
needed, which often can be configured via pins on the mainboard.
Therefore, the new introduced device has an 'addr' field to define its
address. If one wants to use a MDIO device in devicetree, the syntax is
straight forward (example):
device mdio 0x2 on end
As the MDIO interface is driven by the MAC, most likely this MDIO device
will be hooked in as a child device of the (PCI attached) MAC device.
With the new introduced ops_mdio a new interface is added to provide an
API for read and write access over MDIO.
Change-Id: I6691f92c4233bc30afc9029840b06f74bb1eb4b2
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69382
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Currently we only have runtime mechanisms to assign device operations to
a node in our devicetree (with one exception: the root device). The most
common method is to map PCI IDs to the device operations with a `struct
pci_driver`. Another accustomed way is to let a chip driver assign them.
For very common drivers, e.g. those in soc/intel/common/blocks/, the PCI
ID lists grew very large and are incredibly error-prone. Often, IDs are
missing and sometimes IDs are added almost mechanically without checking
the code for compatibility. Maintaining these lists in a central place
also reduces flexibility.
Now, for onboard devices it is actually unnecessary to assign the device
operations at runtime. We already know exactly what operations should be
assigned. And since we are using chipset devicetrees, we have a perfect
place to put that information.
This patch adds a simple mechanism to `sconfig`. It allows us to speci-
fy operations per device, e.g.
device pci 00.0 alias system_agent on
ops system_agent_ops
end
The operations are given as a C identifier. In this example, we simply
assume that a global `struct device_operations system_agent_ops` exists.
Change-Id: I2833d2f2450fde3206c33393f58b86fd4280b566
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66483
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Since there are many identifiers whose name contain "__unused" in
headers of musl libc, introducing a macro which expands "__unused" to
the source of a util may have disastrous effect during its compiling
under a musl-based platform.
However, it is hard to detect musl at build time as musl is notorious
for having explicitly been refusing to add a macro like "__MUSL__" to
announce its own presence.
Using __always_unused and __maybe_unused for everything may be a good
idea. This is how it works in the Linux kernel, so that would at least
make us match some other standard rather than doing our own thing
(especially since the other compiler.h shorthand macros are also
inspired by Linux).
Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Change-Id: I547ae3371d7568f5aed732ceefe0130a339716a9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65717
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Introduce the `smbios_dev_info` devicetree keyword to specify the
instance ID and RefDes (Reference Designation) of onboard devices.
Example syntax:
device pci 1c.0 on # PCIe Port #1
device pci 00.0 on
smbios_dev_info 6
end
end
device pci 1c.1 on # PCIe Port #2
device pci 00.0 on
smbios_dev_info 42 "PCIe-PCI Time Machine"
end
end
The `SMBIOS_TYPE41_PROVIDED_BY_DEVTREE` Kconfig option enables using
this syntax to control the generated Type 41 entries. When this option
is enabled, Type 41 entries are only autogenerated for devices with a
defined instance ID. This avoids having to keep track of which instance
IDs have been used for every device class.
Using `smbios_dev_info` when `SMBIOS_TYPE41_PROVIDED_BY_DEVTREE` is not
enabled will result in a build-time error, as the syntax is meaningless
in this case. This is done with preprocessor guards around the Type 41
members in `struct device` and the code which uses the guarded members.
Although the preprocessor usage isn't particularly elegant, adjusting
the devicetree syntax and/or grammar depending on a Kconfig option is
probably even worse.
Change-Id: Iecca9ada6ee1000674cb5dd7afd5c309d8e1a64b
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57370
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This change uses _dev_${ALIAS_NAME} as the name for `struct device` if
the device has an alias. In addition to that, it emits
_dev_${ALIAS_NAME}_ptr which points to the device structure. This
allows developers to directly reference a particular device in the tree
using alias name without having to walk the entire path. In later CLs,
mainboards are transitioned to use this newly emitted device structure
pointers.
Change-Id: I8306d9efba8e5ca5c0bda41baac9c90ad8b73ece
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57657
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Manually maintaining a list of fields just to avoid printing some
unnecessary CPP guards isn't worth the maintenance burden. Instead,
always generate these guards, even if they guard nothing.
Change-Id: I6c84180d83ac39a895e02d196acb7074eb052d7f
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57459
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
When the override functionality looks for device match, check that
the probe list for both the devices matches exactly if probe list
exists for the base device. This ensures that if there are two devices
with same identity (e.g. I2C address or USB port #) but using
different properties (registers) controlled by different probe
statements, then the two devices are not incorrectly matched as the
same device.
The check for base device having a probe list is performed before
comparing the probe lists because a base device might not really have
any probe requirements at all. So, when overriding such a device,
there is no need to check for the probe list match.
BUG=b:187193527
TEST=Verified by adding two I2C devices in the override tree with the
same I2C address and chip but different probe statements and confirmed
that both the devices are present in generated static.c file.
Change-Id: Ib18868b336cf4ffc9aa38aee7c6f333a35d32fce
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57111
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Weimin Wu <wuweimin@huaqin.corp-partner.google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
The ESPI & LPC keywords were added for the zork program, but it was
found that they weren't needed, so they were never used.
BUG=None
TEST=Build
Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I3a78afc55477d62eac8056e2ca4bcdd3ab12ea47
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56197
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
`probe_list` member in `struct device` is present in all stages,
however, util/sconfig emits the list only when !DEVTREE_EARLY. This
change ensures that `probe_list` is emitted in all stages. In follow
up changes, this is used to get the correct device state using probe
conditions.
Change-Id: I61f7e909d48b616ac2127a5a9f36bdf4817a5165
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54829
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Should use `name` instead of `field->name`, because `field is supposed
to be NULL at this point.
TEST=add new field from bits 29-64 to volteer, ensure sconfig prints an
error instead of segfaulting.
Change-Id: I933330494e0b10e8494a92e93d6beb58fbec0bc1
Found-by: Coverity CID 1452916
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52888
Reviewed-by: Duncan Laurie
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Sooner or later, some board was going to need extra FW_CONFIG bits for
a field that was already in production, so this patch adds support for
adding extra (unused) bits to a field.
The extra are appended via a syntax like:
`field FIELD_NAME START0 END0 | START1 END1 | START2 END2 ...`
and the suffixed bits are all treated as if they are contiguous when
defining option values.
BUG=b:185190978
TEST=Modified volteer fw_config to the following:
field AUDIO 8 10 | 29 29 | 31 31
option NONE 0
option MAX98357_ALC5682I_I2S 1
option MAX98373_ALC5682I_I2S 2
option MAX98373_ALC5682_SNDW 3
option MAX98373_ALC5682I_I2S_UP4 4
option MAX98360_ALC5682I_I2S 5
option RT1011_ALC5682I_I2S 6
option AUDIO_FOO 7
option AUDIO_BAR 8
option AUDIO_QUUX 9
option AUDIO_BLAH1 10
option AUDIO_BLAH2 15
option AUDIO_BLAH3 16
option AUDIO_BLAH4 31
end
which yielded (in static_fw_config.h):
FW_CONFIG_FIELD_AUDIO_MASK 0xa0000700
FW_CONFIG_FIELD_AUDIO_OPTION_NONE_VALUE 0x0
FW_CONFIG_FIELD_AUDIO_OPTION_MAX98357_ALC5682I_I2S_VALUE 0x100
FW_CONFIG_FIELD_AUDIO_OPTION_MAX98373_ALC5682I_I2S_VALUE 0x200
FW_CONFIG_FIELD_AUDIO_OPTION_MAX98373_ALC5682_SNDW_VALUE 0x300
FW_CONFIG_FIELD_AUDIO_OPTION_MAX98373_ALC5682I_I2S_UP4_VALUE 0x400
FW_CONFIG_FIELD_AUDIO_OPTION_MAX98360_ALC5682I_I2S_VALUE 0x500
FW_CONFIG_FIELD_AUDIO_OPTION_RT1011_ALC5682I_I2S_VALUE 0x600
FW_CONFIG_FIELD_AUDIO_OPTION_AUDIO_FOO_VALUE 0x700
FW_CONFIG_FIELD_AUDIO_OPTION_AUDIO_BAR_VALUE 0x20000000
FW_CONFIG_FIELD_AUDIO_OPTION_AUDIO_QUUX_VALUE 0x20000100
FW_CONFIG_FIELD_AUDIO_OPTION_AUDIO_BLAH1_VALUE 0x20000200
FW_CONFIG_FIELD_AUDIO_OPTION_AUDIO_BLAH2_VALUE 0x20000700
FW_CONFIG_FIELD_AUDIO_OPTION_AUDIO_BLAH3_VALUE 0x80000000
FW_CONFIG_FIELD_AUDIO_OPTION_AUDIO_BLAH4_VALUE 0xa0000700
Change-Id: I5ed76706347ee9642198efc77139abdc3af1b8a6
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52747
Reviewed-by: Duncan Laurie <duncan@iceblink.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Now that multiple device trees are supported (chipset, base,
override), base_chip_instance parameter for override device needs to
be set to the base chip instance of the corresponding device in
base/primary tree. This can be achieved by using `get_chip_instance()`
instead of using base_dev->chip_instance in `update_device()`.
TEST=Verified that coreboot.rom generated using timeless shows no
change for all boards.
Change-Id: I42e3f4b83c55f3479b95dbbd7a3721558c32b1c8
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50868
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
SMBIOS slot information in overrridetree is not overriden
if device already exist in devicetree.
Add support to handle this information from override.
BUG= N/A
TEST= Verify generated static.c on Intel Coffee Lake CRB
Change-Id: I532436aee1d71b79171463124f7b205c145d5b05
Signed-off-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49738
Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This change emits chip config pointers for PCI devices on root bus in
static_devices.h so that the config structure can be accessed directly
without having to reference the device structure. This allows the
linker to optimize out unused parts of the device tree from early
stages like bootblock.
Change-Id: I1d42e926dbfae14b889ade6dda363d8607974cae
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49214
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Introduce a new device `gpio` that is going to be used for generic
abstraction of gpio operations in the devicetree.
The general idea behind this is that every chip can have gpios that
shall be accessible in a very generic way by any driver through the
devicetree.
The chip that implements the chip-specific gpio operations has to assign
them to the generic device operations struct, which then gets assigned
to the gpio device during device probing. See CB:48583 for how this gets
done for the SoCs using intelblocks/gpio.
The gpio device then can be added to the devicetree with an alias name
like in the following example:
chip soc/whateverlake
device gpio 0 alias soc_gpio on end
...
end
Any driver that requires access to this gpio device needs to have a
device pointer (or multiple) and an option for specifying the gpio to be
used in its chip config like this:
struct drivers_ipmi_config {
...
DEVTREE_CONST struct device *gpio_dev;
u16 post_complete_gpio;
...
};
The device `soc_gpio` can then be linked to the chip driver's `gpio_dev`
above by using the syntax `use ... as ...`, which was introduced in
commit 8e1ea52:
chip drivers/ipmi
use soc_gpio as gpio_dev
register "bmc_jumper_gpio" = "GPP_D22"
...
end
The IPMI driver can then use the generic gpio operations without any
knowlege of the chip's specifics:
unsigned int gpio_val;
const struct gpio_operations *gpio_ops;
gpio_ops = dev_get_gpio_ops(conf->gpio_dev);
gpio_val = gpio_ops->get(conf->bmc_jumper_gpio);
For a full example have a look at CB:48096 and CB:48095.
This change adds the new device type to sconfig and adds generic gpio
operations to the `device_operations` struct. Also, a helper for getting
the gpio operations from a device after checking them for NULL pointers
gets added.
Successfully tested on Supermicro X11SSM-F with CB:48097, X11SSH-TF with
CB:48711 and OCP DeltaLake with CB:48672.
Change-Id: Ic4572ad8b37bd1afd2fb213b2c67fb8aec536786
Tested-by: Johnny Lin <Johnny_Lin@wiwynn.com>
Tested-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: Patrick Rudolph <siro@das-labor.org>
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48582
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
In order to allow override trees to hide/unhide a device copy
the hidden state to the base device. This allows a sequence
of states like:
chipset.cb: mark device 'off' by default
devicetree.cb: mark device 'hidden' (to skip resource allocation)
overridetree.cb: mark device 'on' for device present on a variant
BUG=b:159143739
BRANCH=volteer
TEST=build volteer variants with TCSS RP0 either hidden or on
and check the resulting static.c to see if the hidden bit is
set appropriately.
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Change-Id: Iebe5f6d2fd93fbcc4329875565c2ebf4823da59b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47197
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
It slightly helps debugging issues when you know what to look out for.
Change-Id: I21eafaf8291701316aa920e458ba74535121b0a1
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47103
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
We all knew this was coming, 32 bits is never enough. Doing this early
so that it doesn't affect too much code yet. Take care of every usage of
fw_config throughout the codebase so the conversion is all done at once.
BUG=b:169668368
TEST=Hacked up this code to OR 0x1_000_0000 with CBI-sourced FW_CONFIG
and verify the console print contained that bit.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I6f2065d347eafa0ef7b346caeabdc3b626402092
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45939
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Currently sconfig generates a `static.h` to accompany
`static.c`. However, some payloads may decide they would like to consume
the FW_CONFIG macros as well. The current state of `static.h` makes this
impossible (relying on `device/device.h`).
This patch splits up `static.h` into 3 files: `static.h,
`static_devices.h`, and `static_fw_config.h`. `static.h` simply includes
the other two `.h` files to ensure no changes are needed to other
code. `static_devices.h` contains the extern'd definitions of the device
names recently introduced to sconfig. `static_fw_config.h` contains the
FW_CONFIG_FIELD_* macros only, which makes it easily consumable by a
payload which wishes to use FW_CONFIG.
Also refactor the generation of all these output files, as the code was
getting messy.
Change-Id: Ie0f4520ee055528c7be84d1d1e2dcea113ea8b5f
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45667
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
This change extends the devicetree override one more layer and allows
the chipset to provide the base devicetree. This allows the chipset to
assign alias names to devices as well as set default register values.
This works for both the baseboard devicetree.cb as well as variant
overridetree.cb.
chipset.cb:
device pci 15.0 alias i2c0 off end
devicetree.cb:
device ref i2c0 on end
BUG=b:156957424
Change-Id: Ia7500a62f6211243b519424ef3834b9e7615e2fd
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44037
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Extract the steps to parse and override a devicetree into a function
so it can be used multiple times without copying the same logic.
Change-Id: I4e496a223757beb22e3bd678eb6115968bd32529
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44036
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Instead of positional arguments switch sconfig to use getopt and pass
the arguments as options in the build system. This will make it easier
to add additional options.
Change-Id: I431633781e80362e086c000b7108191b5b01aa9d
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44035
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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>
Mario Scheithauer