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When reading+clearing a GPE for use as an interrupt we need to
re-read the status register and keep setting the clear bit until
it actually reads back clear. Also add a 1ms timeout in case the
status never clears.
This is needed if a device sends a longer interrupt pulse and it
is still asserted when the "ISR" goes to clear the status.
BUG=chrome-os-partner:59299
TEST=test cr50 TPM with 20us pulse to ensure it can successfully
communicate with the TPM and does not get confused due to seeing
interrupts that it should not.
Change-Id: I384f484a1728038d3a355586146deee089b22dd9
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/17212
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Add the necessary infrastructure to support eSPI SMI events,
and a mainboard handler to pass control to the EC.
BUG=chrome-os-partner:58666
TEST=tested on eve board with eSPI enabled, verified that lid
close event from the EC during firmware will result in an SMI
and shut down the system.
Change-Id: I6367e233e070a8fca053a7bdd2534c0578d15d12
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/17134
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Export the pmc_gpe_init() function from pmc.c to pmutil.c
so it can be used in bootblock, and then call it from there
to initialize any GPEs for use in firmware.
BUG=chrome-os-partner:58666
TEST=test working GPE as TPM interrupt on skylake board
Change-Id: I6b4f7d0aa689db42dc455075f84ab5694e8c9661
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/17135
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Add the SOC definition for acpi_get_gpe() so it can be used
by the I2C TPM driver. Also add the I2C support code to
verstage so it can get used by vboot.
BUG=chrome-os-partner:58666
TEST=boot with I2C TPM on skylake board
Change-Id: I553f00a6ec25955ecc18a7616d9c3e1e7cbbb8ca
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/17136
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Calling halt in poweroff when in SMM prevents SLP_SMI to be triggered
preventing the system from entering sleep state. Fix this by calling
halt only if ENV_SMM is not true.
BUG=chrome-os-partner:56395
Change-Id: I3addc1ea065346fbc5dbec9d1ad49bbd0ae05696
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/16259
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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The function name "pmc_tco_regs" is changed to "smbus_tco_regs"
since TCO offsets belongs to SMBUS PCI device.
BUG=none
BRANCH=none
TEST=Built and booted kunimitsu
Change-Id: I4ac26df81a8221329f2b45053dd5243cd02f8ad7
Signed-off-by: Barnali Sarkar <barnali.sarkar@intel.com>
Reviewed-on: https://review.coreboot.org/16155
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
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Implement poweroff() by putting the chipset into ACPI S5 state.
BUG=chrome-os-partner:54977
Change-Id: I9288dcee13347a8aa3f822ca3d75148ba2792859
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/15688
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins)
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It encourages users from writing to the FSF without giving an address.
Linux also prefers to drop that and their checkpatch.pl (that we
imported) looks out for that.
This is the result of util/scripts/no-fsf-addresses.sh with no further
editing.
Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/11888
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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The current construction for processing SMI GPI events
didn't allow for the mainboard to query the state of a
particular GPI for the snapshotted SMI event. The
skylake part can route GPIs from any (there are design
limitations) GPIO group. Those status and enable registers
are within the GPIO community so one needs to gather
all the possibilities in order to query the state.
The call chain did this:
southbridge_smi_gpi(
clear_alt_smi_status() -> reset_alt_smi_status() ->
print_all_smi_status() -> return 0)
As a replacement the following functions and types are
introduced:
struct gpi_status - represent gpi status.
gpi_status_get() - per gpi query on struct gpi_status
gpi_clear_get_smi_status() - clear and retrieve SMI GPI status
mainboard_smi_gpi_handler() - mainboard handler using gpi_status
Also remove gpio_enable_all_smi() as that construct was never
used, but it also is quite heavy handed in that it would
enable SMI generation for all GPIs.
BUG=chrome-os-partner:43778
BRANCH=None
TEST=Built.
Original-Change-Id: Ief977e60de65d9964b8ee58f2433cae5c93872ca
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/291933
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Change-Id: Ida009393c6af88ffe910195dc79a4c0d2a4c029e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11208
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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The ec_smi_gpio and alt_gp_smi_en devicetree options are
goign to be removed. The plan for skylake is to set the
settings by the mainboard through either gpio pad
configuration or through helper functions.
Moreover, these values only allow *1* SMI GPIO configuration
in that the following has to be true:
alt_gp_smi_en = 1 << (ec_smi_gpio % 24)
If not, then another gpio(s) from the same group has the
SMI_EN bit set for it.
Lastly, remove all the subsequent dependencies as they are
no longer used: enable_alt_smi() and gpio_enable_group().
BUG=chrome-os-partner:43778
BRANCH=None
TEST=None
Original-Change-Id: I749a499c810d83de522a2ccce1dd9efb0ad2e20a
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/291931
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Change-Id: I2e1cd6879b76923157268a1449c617ef2aada9c4
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11204
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Some of the field and register names in the power management
code were not reflecting current chipset documentation. While
in there fix 0-sized array in the power_state structure. Lastly,
log the entire STD GPE register for visibility in elog. It reports
as an extension of other GPIO wake events.
BUG=None
BRANCH=None
TEST=Built and booted.
Change-Id: I57a621a418f90103ff92ddbf747e71a11d517c9a
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Original-Commit-Id: ed15cc7d0aeee8070e134ed03e28fced9361c00e
Original-Change-Id: I19f9463c87e9472608e69d143932e66ea2b3c3e1
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/288296
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/11070
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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In order to provide more clarity on what some of the gpio
functions are doing add a 'gpio_' prefix to the globally
visible functions.
BUG=chrome-os-partner:42982
BRANCH=None
TEST=Built glados.
Change-Id: I4cf48558c1eb9986ed52b160b6564ceaa3cb94b4
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Original-Commit-Id: f79ef113797884063621fe6cd5cc374c53390ebd
Original-Change-Id: I0d8003efff77b92802e0caf8125046203f315ae4
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/288192
Original-Reviewed-by: Robbie Zhang <robbie.zhang@intel.com>
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/11067
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Add the files to support the Skylake SOC.
Matches chromium tree at 927026db
BRANCH=none
BUG=None
TEST=Build and run on a Skylake platform
Change-Id: I80248f7e47eaf13b52e3c7ff951eb1976edbaa15
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: http://review.coreboot.org/10341
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Use the Broadwell implementation as the comparison base for Skylake.
BRANCH=none
BUG=None
TEST=None
Change-Id: I22eb55ea89eb0d6883f98e4c72a6d243e819e6d8
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: http://review.coreboot.org/10340
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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