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When the system shuts down, turn the fingerprint sensor off. This sets
the GPIOs correctly for the next boot. The fingerprint sensor was
previously left on, and was just powering down when the rails went low.
On suspend, the fingerprint sensor stays awake and puts itself in a low
powerstate mode based on the SLP_Sx_L pin states.
BUG=b:171837716
TEST=Fingerprint sensor still works after S3, GPIO state on the boot
following a shutdown is low.
BRANCH=Zork
Signed-off-by: Martin Roth <martinroth@chromium.org>
Change-Id: I3837b58372d8f4a504535e76bd21c667d68f8995
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47311
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Add a function that initializes GPIOs based on the sleep type that
the system is coming back from. This allows initialization of the
fingerprint GPIOs which need to be handled differently between wake
from S3 and boot from S5.
On initial boot, the state of the FP sensor could be either
enabled or disabled. Because of this, on boot, we power off
the sensor for >200ms, to reset its state, then power it back on.
In suspend/resume, the fingerprint sensor should remain powered
the entire time.
If fingerprint is disabled on the trembyle-based board, set the pins
to no-connect. Dalboz doesn't have fingerprint and the GPIOS are
configured differently due to the FT5 chip having fewer GPIOS than
FP5, so nothing needs to be initialized there.
There were also a couple of trivial comment clean ups regarding the
FPMCU GPIOS.
BUG=b:171837716
TEST=Boot & Check GPIO states.
BRANCH=Zork
Signed-off-by: Martin Roth <martinroth@chromium.org>
Change-Id: I16a2e621145782e0a908bb3e49478586c09a0e0a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47308
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Add generic wifi ACPI entry for wake on lan event.
Change configuration of GPIO 2/WIFI_PCIE_WAKE_ODL to SCI.
BUG=b:162605108
TEST=$ iw phy phy0 wowlan enable disconnect
$ cat /proc/acpi/wakeup | grep WF
WF00 S3 *enabled pci:0000:01:00.0
$ powerd_dbus_suspend
Reboot wifi router, DUT wakes up
BRANCH=zork
Change-Id: Idbeb2cfbc4995b8382ffc26cbe7b53764fc9252d
Signed-off-by: Rob Barnes <robbarnes@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45745
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Configure EMMC_RESET_L (GPIO68) to drive high by default. As per JEDEC
specification for eMMC, RST_n_FUNCTION defaults to temporarily disable
reset using RST_n signal (which is connected to EMMC_RESET_L on
zork). Chrome OS platforms do not configure RST_n_FUNCTION thus making
the reset signal unused. The spec also says that there are no internal
pulls on the card and hence the RST_n signal should be driven
appropriately to prevent the input circuits from flowing unnecessary
leakage current.
Thus, even though the line remains unused, since it is connected in
hardware, this change drives EMMC_RESET_L to high.
BUG=b:169222156
BRANCH=zork
TEST=emerge-zork coreboot
eMMC DUT reboot/suspend x100 iterations pass
Change-Id: I9feb826eec8a8cdad5e2bd7efcbb1dcf96185dfd
Signed-off-by: Kevin Chiu <kevin.chiu@quantatw.com>
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45756
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
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Fingerprint interrupt (FPMCU_INT_L) is level triggered and not edge
triggered. Also, we are using GEVENT for wake from fingerprint and
not the GPIO IRQ wake. Thus, the irq property exposed in ACPI tables
does not need to be set to indicate wake for the IRQ.
This change updates GPIO table to configure the pad as level triggered
and drops the wake attribute for irq_gpio in overridetree.
BUG=b:165612778
BRANCH=zork
TEST=Verified that fingerprint still works in S0 and to wake device
from S3.
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I9007e5b0882ac1a6770db52d651218998f6d750d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45307
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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GPIO_89 was marked as EN_DEV_BEEP_L in pre-v3.6 schematics, but it was
never really used on any of the zork variants. Starting with v3.6,
GPIO_89 is left unused in schematics.
This change configures GPIO_89 as PAD_NC in baseboard GPIO
table. Since EN_DEV_BEEP_L still needs to be driven high to allow
speakers to work, GPIO_89 is configured as PAD_GPO driven high on
pre-v3.6 schematics.
BUG=b:62108046
Change-Id: I026cd6cb598667ce6e115c3ec9357a6a56051d39
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44190
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change adds support for touchscreen power control using:
* GPIO_90 for trembyle based boards
* GPIO_32 for dalboz based boards
By default, baseboard tables configure these GPIOs as PAD_GPO driven
low and override trees expose these pads as enable_gpio to be used by
ACPI power resource.
In order to support pre-v3.6 boards, override tables configure these
pads as PAD_NC and drop the enable_gpio setting from device tree based
on board version.
BUG=b:161935640, b:162747210
Change-Id: Iba5e36b65b44ea11613b4d5fc8f13ce6433f83ab
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44193
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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v3.6 of reference schematics have switched the polarity of reset
signal to touchscreen controller from active high to active low. This
change updates the default configuration in baseboard gpio tables to
set the reset GPIO to output low and override tables in variants to set the
reset GPIO to output high. Additionally, devicetree by default exposes
ACTIVE_LOW configuration for reset GPIO. In order to support pre-v3.6
boards, reset GPIO is updated to ACTIVE_HIGH based on board version.
BUG=b:161937506
Change-Id: I092f274d8eb1920a1cd6d3eccbe8f26b0b28928a
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44192
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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HP_INT_ODL is no longer connected to CODEC_GPI in schematic version 3.6.
Split variant_audio_update into update_dmic_gpio and update_hp_int_odl.
Changed GPIO_29 from PAD_NC to PAD_GPI in Trembyle. Changed GPIO_84 from
PAD_NC to PAD_GPI for Dalboz. Changed HP_INT_ODL to appropriate pin in
both boards devicetree.cb.
BUG=b:161938476
BRANCH=None
TEST=None
Cq-Depend: chromium:2335424
Change-Id: I05ffb063ab99823d07be6eaa911efbde3cc4ff55
Signed-off-by: Josie Nordrum <josienordrum@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44157
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change does the following:
a. USI_REPORT_EN is no longer set to high in coreboot. Instead
GPIO_144 is exposed as stop_gpio in ACPI to allow OS to control this
pad as required.
b. Appropriate delays are added for power-down sequencing:
- Delay after REPORT_EN is disabled - 1ms
- Delay after RESET is asserted - 1ms
BUG=b:159501288
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: If4d12fa0d4f4e5123d8fdccdabda996dcafa4523
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43701
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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GPIO_91 is added to ACPI using the device tree entry for codec. So,
this change drops the TODO from GPIO table.
Change-Id: I9c2e91465ab554126531f8512028360ae5fb316d
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43699
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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This change configures all missing pads in ramstage for trembyle
reference. This ensures that the state of all pads is set correctly
for the payload/OS. Also, all the pads for the platform are configured
in baseboard gpio table in ramstage to ensure that variants can
override any pads if required.
BUG=b:154351731
Change-Id: Idd827b6a4f995546493596f22249f8699bdf526b
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43697
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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This change drops internal pulls for trembyle reference configured on pads
which already have external pull-ups in hardware.
GPIO_0(PWR_BTN_L): Pulled up to PP3300_A
GPIO_2(WAKE_L): Pulled up to PP3300_A
GPIO_10: Unused. Changed to PAD_NC.
GPIO_12(USI_INT_ODL): Pulled up to PP3300_A
GPIO_16(USB_OC0_L): Pulled up to PP3300_A
GPIO_17(USB_OC1_L): Pulled up to PP3300_A
GPIO_21(EMMC_CMD): Pulled up to PP3300_A
GPIO_22(EC_FCH_SCI_ODL): Pulled up to PP3300_A
GPIO_31(EC_AP_INT_ODL): Pulled up to PP1800_A
GPIO_90: Unused. Changed to PAD_NC.
GPIO_113(I2C2_SCL): Pulled up to PP3300_S0
GPIO_114(I2C2_SDA): Pulled up to PP3300_S0
GPIO_129(KBRST_L): Pulled up to PP1800_S0
GPIO_130(EC_IN_RW_OD): Pulled up to PP3300_S0
GPIO_92(CLK_REQ0_L): Pulled up to PP3300_S0
GPIO_115(CLK_REQ1_L): Pulled up to PP3300_S0
GPIO_132(CLK_REQ4_L): Pulled up to PP3300_S0
BUG=b:154351731
Change-Id: Id84b801e019eede7ef543c24aac968f3ef99b3fd
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43526
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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gpio_set_stage_rom table is now configuring only PCIe related GPIOs in
romstage. This change moves the configuration of PCIe related GPIOs to
variant_pcie_gpio_configure() to keep all the configuration for WiFi and
non-WiFi PCIe pads in one place. It also drops the function
variant_romstage_gpio_table() as it is unused.
BUG=b:154351731
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: Ib1c41ba141dce6b52b6e0a250a3aa07c296068aa
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43475
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Now that the power and reset GPIO configuration for non-PCIe devices is
dropped from romstage GPIO table, the tables for pre-v3 and v3 version of
schematics are exactly same. So, this change drops the duplicate table and
also removes the check for v3 schematics when configuring the pads in
romstage.
BUG=b:154351731
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I67ca9f587c3f47912393ebaf38badcc9d76cc393
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43474
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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This change drops power and reset control for non PCIe devices in
romstage as this is not required.
+---------------------+--------------------------------------------+--------------------+
| GPIO| Net name | External| Internal| Domain| State at reset | State on S3 resume |
| # | | Pull | Pull | | | |
+---------------------------------------------------------------------------------------+
| 5 | PEN_POWER_EN | 100K PD | PD | S5 | Powered off | Powered on |
| | | | | | (because of | (since power is not|
| | | | | | internal PD) | disabled when |
| | | | | | | entering S3) |
+---------------------------------------------------------------------------------------+
| 13 |EN_PWR_TOUCHPAD| 499K PD | PU | S5 | Powered on | Powered on |
| |_PS2 | | | | (because of | (since trackpad |
| | | | | | internal PU) | is wake source) |
+---------------------------------------------------------------------------------------+
| 68 | EMMC_RESET_L | 100K PU | PD | S0 | Asserted | Asserted |
| | | | | | (because of | (because of |
| | | | | | internal PD) | internal PD) |
+---------------------------------------------------------------------------------------+
| 76 | EN_PWR_CAMERA | 499K PD | PD | S0 | Powered off | Powered off |
| | | | | | (because of | (because of |
| | | | | | internal PD) | internal PD) |
+---------------------------------------------------------------------------------------+
| 140 | USI_RESET | 10K PD | PD | S0 | Deasserted | Deasserted |
| | | | | | (because of | (because of |
| | | | | | internal PD) | internal PD) |
+---------------------------------------------------------------------------------------+
+---------------------------------------------------------------------------------------+
| 67 |EN_PWR_TOUCHPAD| 10K PU | PD | S0 | Powered off | Powered off |
| |_PS2 (pre-V3) | | | | (because of | (because of |
| | | | | | internal PD) | internal PD) |
| | | | | | | |
+-----+---------------+---------+---------+-------+----------------+--------------------+
GPIO_140 starts deasserted out of reset and S3 resume, but gets
asserted in ramstage since it is eventually deasserted by OS using
ACPI methods.
BUG=b:154351731
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: Ieadc62f1a13857209cf0a62f204efb9278e0e97d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43462
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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This change keeps USI_RST(GPIO_140) asserted in ramstage since it gets
deasserted by OS using ACPI methods.
BUG=b:160854397
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I8feced788e471a0efb2358d42b2146df04fb7a0c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43461
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change keeps pen power enabled in sleep state to allow it to
charge in S3.
BUG=b:155422911
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I6190496653878327f34a01f6a743db474d32e929
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43452
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This matches the other methods.
BUG=b:154756391
TEST=Build trembyle
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I6ba1fc5756c17da4dc1727425af17c4582c01a18
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41973
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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This change adds following two helper functions:
1. variant_uses_v3_schematics() - Check whether the variant is using
v3 version of schematics.
2. variant_has_active_low_wifi_power() - Check whether the variant is
using active low power enable for WiFi.
In addition to this, Kconfig options are reorganized to add two new
configs - VARIANT_SUPPORTS_PRE_V3_SCHEMATICS and
VARIANT_SUPPORTS_WIFI_POWER_ACTIVE_HIGH. This allows the helper
functions to return `true` early without checking for board version.
Eventually, when a variant decides to drop support for pre-v3
schematics, it can be dropped from selecting
VARIANT_SUPPORTS_PRE_V3_SCHEMATICS. Similarly, when the variant
decides to drop support for active high power enable for WiFi, it can
be dropped from selecting VARIANT_SUPPORTS_WIFI_POWER_ACTIVE_HIGH.
Change-Id: I62851299e8dd7929a8e1e9a287389abd71c7706c
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43224
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change moves the configuration of GPIO_137 to happen in ramstage
since there is nothing in coreboot that requires the state of write
protect GPIO for zork.
Change-Id: Ibaf8e7d9dd5d13a9b39b10ac0174de345b8380f5
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43223
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Currently, EC wake signal (GPIO_24) is configured early on in
romstage. However, there is no need for that since EC wake is not
really required to be configured until ramstage. This change moves
GPIO_24 configuration to happen in ramstage.
BUG=b:159832123
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I6949dcd7c866df2fa028c7b2e7f347cec988e309
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42952
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change updates the pad configurations for wake lines as
follows:
1. Pen eject wake signal needs to be configured as PAD_WAKE i.e. wake
using GPIO controller block. This is because pen eject signal is not
dual routed and the trigger filtering is set by the kernel driver
differently for S0 and S3 wake. Hence, it cannot use SCI GEVENT and
instead has to fall back to using GPIO controller wake.
2. All other wake signals (EC, trackpad, fingerprint) need to be
configured as SCI. This allows OS to enable/disable wake from these
sources if required. Example: powerd disables wake from trackpad when
in tablet mode. Hence, all other wake sources use SCI.
BUG=b:159832123
TEST=Verified wake using pen eject and EC.
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: Id8cd5926f223db51a689ed8948040b8070cf1680
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42951
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change adds support for pen insert/eject operations in S0 and
wake on pen eject from S3 for morphius.
BUG=b:158814699,b:158719244
Change-Id: I3530a0aa83ec69559436687205c64524b862799b
Signed-off-by: Kevin Chiu <kevin.chiu@quanta.corp-partner.google.com>
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42950
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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This change drops GPIO_27 configuration for trembyle reference boards
since it is unused.
BUG=b:159453643
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I57dd78e8abcc61802ca85158e7ff348460ad1d8e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42939
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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A late change went into v3+ of reference schematics which inverted
EN_PWR_WIFI to meet PCIe reset/power timings for WiFi device. This is
incorporated into v3.51+ for Trembyle reference and v3.2+ for Dalboz
reference. However, some variants are built with v3+ reference
schematics, but without the inversion of EN_PWR_WIFI polarity. Thus,
we need to add support for following combinations:
1. Pre-v3 Schematics
2. V3+ Schematics
3. V3+ Schematics + Active low wifi power
This change adds a new Kconfig
`VARIANT_MIN_BOARD_ID_WIFI_POWER_ACTIVE_LOW` that sets the minimum
board ID that has EN_PWR_WIFI active low in hardware. Variants that
missed this change in V3+ integration (berknip and vilboz) have board
IDs set to VARIANT_MIN_BOARD_ID_V3_SCHEMATICS + 1. For others, this
defaults to VARIANT_MIN_BOARD_ID_V3_SCHEMATICS.
BUG=b:159749536
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: Ib8da7fba5f4a518a51b203d6a01a9551e261d8b6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42938
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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This change moves variant_sleep_gpio_table() definition to dalboz and
trembyle references to allow each to make their own changes.
BUG=b:159749536, b:159453643
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I15b19cea05f1a540c56b6bc0507306d2348ac17f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42937
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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configuration table
Currently, for Stoneyridge and Picasso mainboards, pads that are
configured for SCI/SMI/WAKE need to have multiple entries in the
configuration table - one for PAD_GPI and other for the special
configuration that is required. This requires a very specific ordering
of pads within the table and is prone to errors because of conflicting
params provided to the different entries for the same pad. This also
does not work very well with the concept of override GPIOs where the
entry in base table is overridden with the first matched entry from
the override table.
This change updates the way GPIO configuration is handled for special
routing like SCI/SMI/WAKE/DEBOUNCE by setting the control field of
soc_amd_gpio structure in the macros performing these
configurations. Also, program_gpios() is updated to perform a write to
GPIO control register instead of read-modify-write. This is because
mainboard is expected to provide only a single configuration entry for
each pad within a given table. Thus, there is no need to preserve
earlier configuration.
Mainboards that were providing multiple entries for a single pad are
updated accordingly.
BUG=b:159944426
Change-Id: I3364dc2982d66c4e33c2b4e6b0b97641ebea27f0
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42875
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change moves the configuration of PCIE_RST0_L as native
function to happen in early GPIO table. This ensures that the PERST#
signal is deasserted as soon as possible when the system comes out
of sleep state in case the sleep path asserted/deasserted the PERST#
as GPIO out.
A big difference in functionality with this change is that PCIE_RST0_L
signal is now configured as part of RO, which should be fine since
all PCIe devices have a second AUX_RESET_L signal or use PCIE_RST1_L
to control the actual reset to the device.
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I21a9c25b5a8a6d502cdb79cbe0dbad6ef98d6d63
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42739
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change replaces variant_wifi_romstage_gpio_table() with
variant_pcie_power_reset_configure() to handle the reset and power
sequencing for WiFi devices pre- and post- v3 version of schematics.
These are the requirements that need to be satisfied:
1. As per PCI Express M.2 Specification Revision 3.0,
Version 1.2, Section 3.1.4 "Power-up Timing", PERST# should stay
disabled until `TPVPGL` time duration after device power has
stabilized. Value of TPVPGL is implementation specific.
2. For Intel WiFi chip, it is known to get into a bad state if the
above requirement is violated and hence requires a power cycle.
3. On pre-v3 schematics:
- For both dalboz and trembyle references, GPIO42 drives
WIFI_AUX_RESET_L which is pulled up to PP3300_WIFI.
- For both dalboz and trembyle references, PP3300_WIFI is controlled
using GPIO29. This pad gets pulled high by default on PWRGOOD
because of internal pull-up. But, at RESET# it is known to have a
glitch. When GPIO29 gets pulled high, it causes WIFI_AUX_RESET_L to
be pulled high as well. This violates the PCIe power sequencing
requirements. Hence, for pre-v3 schematics on both dalboz and
trembyle, following sequence needs to be followed:
a. Assert WIFI_AUX_RESET_L.
b. Disable power to WiFi.
c. Wait 10ms to allow WiFi power to go low.
d. Enable power to WiFi.
e. Wait 50ms as per PCIe specification.
f. Deassert WIFI_AUX_RESET_L.
4. On v3 schematics:
- For trembyle: WIFI_AUX_RESET_L is driven by GPIO86 which has an
internal PU as well as an external PU to PP3300_WIFI.
- For dalboz: WIFI_AUX_RESET is driven by GPIO29. This is active
high and has an internal PU. It also has an external 1K PD to
overcome internal PU.
- For both dalboz and trembyle references, PP3300_WIFI is
controlled by GPIO42 which has an internal PU and external
PD. Trembyle schematics have a comment saying strong PD of 2.2K but
the stuffed resistor is a weak one (499K). ON dalboz, it uses a
weak PD (which doesn't look correct and instead should be a strong
PD just like trembyle). Having a strong PD ensures that the WiFi
power is kept disabled when coming out of G3 until coreboot
configures GPIO42 as high.
- Thus, for v3 schematics, following sequence needs to be followed:
a. Assert WIFI_AUX_RESET{_L} signal.
b. Enable power to WiFi.
c. Wait 50ms as per PCIe specification.
d. Deassert WIFI_AUX_RESET{_L} signal.
BUG=b:157686402, b:158257076
TEST=Verified that QCA and AX200 cards both continue working. Tested
QCA on Dalboz and Trembyle. Tested AX200 on morphius.
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I532131ee911d5efb5130d8710f3e01578f6c9627
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42738
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change updates the baseboard GPIO table in ramstage to match v3
version of trembyle reference schematics. All variants using this
reference are accordingly updated to configure the GPIOs that changed
as part of v3 schematics.
BUG=b:157088093, b:154676993, b:157098434
TEST=Compiles
Signed-off-by: Martin Roth <martinroth@chromium.org>
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: Ib1d6ee2e995c1fca229c20ea63da9a45fb89f64a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/2251393
Reviewed-by: Aaron Durbin <adurbin@google.com>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42724
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change updates _v3 version of romstage and wifi GPIO tables to
match v3 schematics.
BUG=b:157088093, b:154676993, b:157098434
TEST=Compiles
Signed-off-by: Martin Roth <martinroth@chromium.org>
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: Ic605559b3226e2ad9b5b3f3fa45c4aa9f9b5fe22
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/2251391
Reviewed-by: Aaron Durbin <adurbin@google.com>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42722
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change updates variant_romstage_gpio_table() and
variant_wifi_romstage_gpio_table() to support v3 version of schematics
for dalboz and trembyle reference designs. gpio_set_stage_rom and
gpio_set_wifi are divided into two groups:
a) Pre-v3 (GPIO table for pre v3 schematics):
* gpio_set_stage_rom_pre_v3
* gpio_set_wifi_pre_v3
b) v3 (GPIO table for v3+ schematics):
* gpio_set_stage_v3
* gpio_set_wifi_v3
Currently, both _v3 is a copy of _pre_v3, but will be updated in
follow-up CLs to make it easier to identify what changed from _pre_v3
to _v3.
BUG=b:157088093, b:154676993, b:157098434, b:157165628, b:157744136, b:157743835
TEST=Compiles
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I444875d93100c2f2abdb6dec4312861fd89d9b78
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/2251390
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42721
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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RAM_ID GPIOs are configured by ABL based on the information added to
APCB. coreboot does not need to configure these pads. This change
drops the RAM_ID configuration from trembyle baseboard. Dalboz never
really configured RAM_IDs in coreboot.
BUG=b:154351731
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: Ie1dfcc3c185304d917ab4386920445ba0119ac69
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/2252710
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42720
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change moves the GPIOs that need to be configured for early
access in coreboot to early_gpio_table[] in
gpio_baseboard_common.c. These GPIOs include:
* Pads to talk to EC
* Pads to talk to TPM
* Pads to talk to serial console
These should be configured in the first stage that runs coreboot
i.e. in case of VBOOT_STARTS_BEFORE_BOOTBLOCK, it should be done as
part of verstage (which starts on PSP), else it should be done as part
of bootblock (which is the first stage that runs on x86).
This change drops GPIO_137 from early_gpio_table since that is not
really required in early stages.
BUG=b:154351731
TEST=Verified that trembyle still boots.
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: Ifbdbb02cbfc65ddb68f0ae75cf4b1f2ea1656b91
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/2252709
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42719
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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This is a copy of the mb/google/zork directory from the chromiumos
coreboot-zork branch. This was from commit 29308ac8606.
See https://chromium.googlesource.com/chromiumos/third_party/coreboot/+/29308ac8606/src/mainboard/google/zork
Changes:
* Minor changes to make the board build.
* Add bootblock.c.
* Modify romstage.c
* Removed the FSP_X configs from zork/Kconfig since they should be
set in picasso/Kconfig. picasso/Kconfig doesn't currently define the
binaries since they haven't been published. To get a working build
a custom config that sets FSP_X_FILE is required.
BUG=b:157140753
TEST=Build trembyle and boot to OS
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I3933fa54e3f603985a0818852a1c77d8e248484f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41581
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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