The original document was written and committed with no regard to line
lengths. This makes it easier to write. Now it needs to be easier to
read, so wrap the lines at 80 characters where possible.
- A couple of headings had to be rewritten to keep them under 80
characters. This required the addition of a new paragraph that had
the old header.
- Remove URL text that was just duplicating the URL.
- All other text is the same, just wrapped.
Change-Id: I44833c28750714fccb87296868c1ff78ab7f1d07
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: https://review.coreboot.org/19076
Tested-by: build bot (Jenkins)
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Using i2c_block_read speeds up reading SPD four to fivefold compared
to sequential byte read.
TESTED on Intel D945GCLF.
Change-Id: I6d768a2ba128329168f26445a4fca6921c0c8642
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/18927
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Scarlet don't have eDP and MIPI driver is not ready, skipping
display for now or else Scarlet would be stuck in
reading eDP HPD because there even not power for it.
TEST=boot to kernel on Scarlet
Change-Id: I02ab4ef21bf77b98414f537aca57b46c11922348
Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
Reviewed-on: https://review.coreboot.org/19237
Tested-by: build bot (Jenkins)
Reviewed-by: Julius Werner <jwerner@chromium.org>
Due to issues with stability limit the SKU with K4EBE304EB-EGCF
memory to 1600MHz instead of 1866MHz.
BUG=b:37172778
BRANCH=none
TEST=pass stress testing on devices with this memory
Change-Id: I02af7e9c35e2c5b0b85223d58025cbd29841d973
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/19227
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This is needed if one wants to use the header more than once.
Change-Id: I375d08465b6c64cd91e7563e3917764507d779ba
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19029
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Create Intel Common RTC code. This code currently only
contains the code for configuring RTC required in Bootblock phase
which has the following programming -
* Enable upper 128 bytes of CMOS.
Change-Id: Id9dfcdbc300c25f43936d1efb5d6f9d81d3c8453
Signed-off-by: Barnali Sarkar <barnali.sarkar@intel.com>
Reviewed-on: https://review.coreboot.org/18558
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Tested-by: build bot (Jenkins)
This patch use common PCR library to perform CRRd and CRWr operation
using Port Ids, define inside soc/pcr_ids.h
Change-Id: Iacbf58dbd55bf3915676d875fcb484362d357a44
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/18673
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This patch use common PCR library to perform CRRd and CRWr operation
using Port Ids, define inside soc/pcr_ids.h
Change-Id: Id9336883514298e7f93fbc95aef8228202aa6fb9
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/18674
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
IOSF_SB message space is used to access registers mapped
on IOSF-SB. These registers include uncore CRs (configuration
registers) and chipset specific registers. The Private
Configuration Register (PCR) space is accessed on IOSF-SB
using destination ID also known as Port ID.
Access to IOSF-SB by the Host or System Agent is possible
over PSF via the Primary to Sideband Bridge (P2SB). P2SB will
forward properly formatted register access requests as CRRd and
CRWr request via IOSF-SB.
Change-Id: I78526a86b6d10f226570c08050327557e0bb2c78
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/18669
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Update the I2C rise/fall timings based on newly measured values
on a new board with updated pull-up resistor values.
Touchscreen: rise time 98ns, fall time 38ms
Touchpad: rise time 111ns, fall time 41ns
TPM: rise time 112ns, fall time 34ns
BUG=b:35583133
BRANCH=none
TEST=Each I2C bus frequency was verified on a scope to be ~400MHz
Change-Id: Ibb3a15fa0cc862f36c1b9c63ac7847221020c4c0
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/19202
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
There is only one user for spi_get_config i.e. SPI ACPI. Also, the
values provided by spi_get_config are constant for now. Thus, get rid
of the spi_get_config call and fill in these constant values in SPI
ACPI code itself. If there is a need in the future to change these,
appropriate device-tree configs can be added.
BUG=b:36873582
Change-Id: Ied38e2670784ee3317bb12e542666c224bd9e819
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19203
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
When a platform is using postcar stage it's by definition not
tearing down cache-as-ram from within romstage prior to loading
ramstage. Because of this property there's no need to migrate
CAR_GLOBAL variables to cbmem.
Change-Id: I7c683e1937c3397cbbba15f0f5d4be9e624ac27f
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/19215
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Bottom five LSBs are used to store the running frequency
of memory clock.
Change-Id: I2dfcf1950883836499ea2ca95f9eb72ccdfb979c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/19042
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
The EC may take very long for the first command on a cold boot (~180ms
witnessed). Since this needs an incredibly long timeout, we do this
single command manually.
Change-Id: I3302622a845ac6651bc7f563370d8f0511836f94
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/18707
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
This wasn't caught earlier because many boards select it manually.
Change-Id: I245ef8f44923b5384123bd549570db7c348e03b8
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/18771
Tested-by: build bot (Jenkins)
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
Some renamings force us to update our code:
* Scan_Ports() moved into a new package Display_Probing.
* Ports Digital[123] are called HDMI[123] now (finally!).
* `Configs_Type` became `Pipe_Configs`, `Config_Index` `Pipe_Index`.
Other noteworthy changes in libgfxinit:
* libgfxinit now knows about ports that share pins (e.g. HDMI1 and
DP1) and refuses to enable any of them if both are connected
(which is physically possible on certain ThinkPad docks).
* Major refactoring of the high-level GMA code.
Change-Id: I0ac376c6a3da997fa4a23054198819ca664b8bf0
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/18770
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Updating headers corresponding to FSP 2.0.0
Below UPDs are added to FspmUpd.h
* PeciC10Reset
* PeciSxReset
rest of the changes are update to comments
CQ-DEPEND=CL:*340004,CL:*340005,CL:*340006
BUG=None
BRANCH=None
TEST=Build and test on Poppy
Change-Id: Id8ecea6fa5f4e7a72410f8da535ab9c4808b3482
Signed-off-by: Balaji Manigandan B <balaji.manigandan@intel.com>
Reviewed-on: https://review.coreboot.org/19109
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Enable SS link trunk clock gating & D3hot when device enters
D3 state.
Similarly disable SS link trunk clock gating & D3hot when device enters
D0 state
TEST=Build & boot Poppy board. Check working for XHCI wake when DUT
is in S3.
Change-Id: Ida2afa2e5f9404c0c15d7027480a28a003ad9a40
Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com>
Reviewed-on: https://review.coreboot.org/18879
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This patch cleans up the code by:
o adding necessary default definitions to Kconfig
o removing incorrect definitions from devicetree
o removing irrelevant entries from FMD file
devicetree.cb and minnow3.fmd carried over a lot of code from google/reef
which is not correct for Minnow3 hardware. Minnow3 is not intended to
boot Chrome OS and does not need Chrome related flash regions. The
erroneous code is removed.
These changes are the same as those done for leafhill in commit:
6a48923 mainboard/intel/leafhill: Clean up
This was tested by building with the new configuration and
booting to UEFI Payload
Change-Id: I620dcbcd622f9326917c74b2a38984d9e49cff2b
Signed-off-by: Brenton Dong <brenton.m.dong@intel.com>
Reviewed-on: https://review.coreboot.org/18963
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This fixes the following issues, with no functional changes:
ERROR:POINTER_LOCATION: "foo * bar" should be "foo *bar"
ERROR:SPACING: space required after that ',' (ctx:VxV)
WARNING:LONG_LINE_COMMENT: line over 80 characters
WARNING:SPACE_BEFORE_TAB: please, no space before tabs
ERROR:FUNCTION_WITHOUT_ARGS: Bad function definition
ERROR:SPACING: space prohibited before that close parenthesis ')'
WARNING:RETURN_VOID: void function return statements are not generally
useful
2 unfixed issues:
ERROR:COMPLEX_MACRO: Macros with complex values should be enclosed in
parentheses
Verified that the binary was the same before and after the changes.
Change-Id: Ie9afb50e268f4140872e39fe8bede231a43d5cc6
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: https://review.coreboot.org/19078
Tested-by: build bot (Jenkins)
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Reviewed-by: York Yang <york.yang@intel.com>
All boards select INTEL_EDID, move it to nb folder.
Change-Id: I35f075a87f2d841856b208f9440cf41af6a3c8e6
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/19086
Tested-by: build bot (Jenkins)
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This adds a gru libpayload config, that should fit all gru-based
devices such as kevin.
As gru-based devices are CrOS devices, select the associated config
to enable CrOS-specific features.
Change-Id: I6e79b763fc497c126612b8786a669a33b57ea29f
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-on: https://review.coreboot.org/19137
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Move odt stretch into own function.
Apply workaround on SandyBridge C-stepping CPU only.
Apply odt stretch on all other CPU types.
Don't depend on empty DIMM detection, as in case one slot
is empty ref_card_offset is zero.
Change-Id: I4320f14e0522ec997b1f9f3b12ba2c2070ee8e9e
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/17616
Tested-by: build bot (Jenkins)
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
quick_ram_check doesn't change contents of memory.
Run it in S3 resume, too.
Change-Id: Icaf3650fadbb3bb87d8c780a9e79737c3cf7eb06
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/17615
Tested-by: build bot (Jenkins)
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Silency noisy raminit logging by:
* Removing verbose logging from loops.
* Printing detailed summary at end of loop instead.
* Using the same scheme already present in some functions.
Change-Id: I412d81592436ac0d2422caf396c64e0c34acc2d1
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/17611
Tested-by: build bot (Jenkins)
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Remove cross rank/cross channel dependency.
I guess this is a mistake that could lead to instabilities.
Tested on Lenovo T430 (Intel IvyBridge).
Change-Id: I899db907cd2d2197fd81eda4c4656fb1e570c18f
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/17610
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Tested-by: build bot (Jenkins)
Linking should allow to link depending on possible future variants.
E.g. in Makefile.inc romstage-$(CONFIG_'VARIANT0') += gpio_variant0.c
etc.
Change-Id: I88b5ef8e12ac606751952a493f626e1b146e98f7
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19139
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Add package options to the CPU Kconfig that may be selected by the
mainboard's Kconfig file. Stoney Ridge is available in FP4 and FT4
packages and each requires a unique binaryPI image. Default to the
correct blob used by the northbridge by looking at the CPU's package.
Also modify Gardenia to select the right package.
See the Infrastructure Roadmap for FP4 (#53555) and FT4 (#55349) for
additional details for the packages.
Original-Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Original-Reviewed-by: Marc Jones <marcj303@gmail.com>
(cherry picked from commit 7b8ed7b732b7cf5503862c5edc6537d672109aec)
Change-Id: I7bb15bc4c85c5b4d3d5a6c926c4bc346a282ef27
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/18989
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
The term 'callout' has a specific meaning in AGESA, meaning
invoking the said function from AGESA / PI proper.
OemPostParams() does not fall into that category.
Change-Id: I0ad1cbf244501207af96e0ac415a5b80ced91052
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/19141
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
The term 'callout' has a specific meaning in AGESA, meaning
invoking the said function from AGESA / PI proper.
OemPostParams() does not fall into that category.
Change-Id: I45913d93323b3813fc35b1dd1fdca3d782d4b01f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/19140
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
BUG=b:35583511
TEST=check i2c bus 0 initializes from ap console log
Change-Id: Ibb6709159f5ed28ad0b62397d2ddb504dec55167
Signed-off-by: Philip Chen <philipchen@google.com>
Reviewed-on: https://review.coreboot.org/19105
Tested-by: build bot (Jenkins)
Reviewed-by: Julius Werner <jwerner@chromium.org>
Memory training data that is saved as part of S3 feature in SPI
flash can be used to bypass training on normal boot path as well.
When RegisterSize is 3 in the register playback tables, no register is
saved or restored. Instead a function is called to do certain things in
the save and resume sequence. Previously, this was overlooked, and the
pointer containing the current OrMask was still incremented by 3 bytes.
Change-Id: I7221a03d5a4e442817911ba4862e3c0e8fa4a500
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/19041
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Sky Lake PCH contains two GSPI controllers. Using the common GSPI
controller driver implementation for Intel PCH, add support for GSPI
controller buses on Sky Lake/Kaby Lake.
BUG=b:35583330
Change-Id: I29b1d4d5a6ee4093f2596065ac375c06f17d33ac
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19099
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Add support for GSPI controller in Intel PCH. This controller is
compliant with PXA2xx SPI controller with some additional registers to
provide more fine-grained control of the SPI bus. Currently, DMA is
not enabled as this driver might be used before memory is up (e.g. TPM
on SPI).
Also, provide common GSPI config structure that can be included by
SoCs in chip config to allow mainboards to configure GSPI
bus. Additionally, provide an option for SoCs to configure BAR for
GSPI controllers before memory is up.
BUG=b:35583330
Change-Id: I0eb91eba2c523be457fee8922c44fb500a9fa140
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19098
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Since there are multiple controllers in the LPSS and all use the same
frequency, provide a single Kconfig option for LPSS_CLOCK_MHZ.
BUG=b:35583330
Change-Id: I3c0cb62d56916e6e5f671fb5f40210f4cb33316f
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19115
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
In order to be able to use SPI TPM on x86, allow TPM_SPI to be used
with PC80_SYSTEM.
BUG=b:35583330
Change-Id: Ibe626a192d45cf2624368db42d369202a4003123
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19093
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
1. Use proper CAR semantics for global/static variables.
2. Use spi_* functions directly instead of using a global structure to
store pointers to those functions.
BUG=b:36873582
Change-Id: I1fc52ab797ef0cbd3793a387d68198efc5dde58c
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19114
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
BUG=b:35647967
TEST=boot from bob
Change-Id: Ib64107b17fb6e93dbe626ce92f3bc9da8b84784e
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-on: https://chromium-review.googlesource.com/452284
Commit-Ready: Caesar Wang <wxt@rock-chips.com>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/19113
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
BUG=b:35775002
TEST=boot from bob
Change-Id: I6324f3c02da55a8527f085ba463cbb1f4fb5dc2e
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-on: https://chromium-review.googlesource.com/452283
Commit-Ready: Caesar Wang <wxt@rock-chips.com>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/19112
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
This is required to provide tsc freq required by timer library.
BUG=b:35583330
TEST=Verified that delay(5) in verstage adds a delay of 5 seconds.
Change-Id: I03edebe394522516b46125fae1a17e9a06fd5f45
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19094
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Even though the i2c spec has no minimum data hold time in fast
mode the trackpad vendor indicates 300ns is their minimum. However,
the topology of the board uses FET isolation to cross voltage
domains. Therefore, the default 300ns which should work isn't reflected
on the device side of the voltage isolation circuit. Therefore,
increase the data hold time to show an observed data hold time of
more than 300ns on the device side.
BUG=b:36469182
Change-Id: I1b70f2f53c5a29cc7cfd5035a71ca5811b3bcba0
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/19065
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
When using rise_time_ns and fall_time_ns there's currently not
a way to specify a target data hold time. The internal 300ns
value is used. However, that isn't always sufficient depending on
bus topology. Therefore, provide the ability to specify data
hold time in ns from devicetree, defaulting to default value if
none are specified.
BUG=b:36469182
Change-Id: I86de095186ee396099709cc8a97240bd2f9722c9
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/19064
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Martin Roth