In 2014 or so the RTC code was changed to assume the ALTCENTRY
register (0x32) as always being utilized for creating an rtc_time.
However, one needs to ensure it's set at least once otherwise
the year field in rtc_time is not sane.
In practice this doesn't matter unless somone wants to use the
full year value. cmos_init() should do the same thing in the
rtc fail case, but the machine I had never had that set correctly.
BUG=chrome-os-partner:47388
BRANCH=None
TEST=Booted glados w/ 0xff ALTCENTRY value. New value is 0x20.
Change-Id: I028f801c5d717a0018ed00df82c25b466d64670c
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 7d5be5bc697bef60a264ddc7f67755aa96088d36
Original-Change-Id: I6e12a30c9e08d8c1002e4cef0f143f0f88009e92
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/311264
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/12411
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The elog format stores the year of the event in bcd format.
Semi-recently rtc_get() started returning the full year,
e.g. 2015. However, bin2bcd takes a uint8_t as a parameter.
Converting a full year (2015 or 0x7df) to a uint8_t results
in passing bad values (223 or 0xdf) to bin2bcd. In other words
the input value of bin2bcd needs to be a number between 0 and 99.
Therefore fix that mistake.
BUG=chrome-os-partner:47388
BRANCH=None
TEST=Events show up with correct year in eventlog now.
Change-Id: I9209cb9175c0b4925337e2e5d4fea8316b30022a
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 95a86013234dc999c988291f636e2db3803cc24a
Original-Change-Id: I12734bc3a423ba9d739658b8edc402b8d445f22e
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/311263
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/12410
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
1. This is required the BLOB change Ie86bb0cf
AMD Merlin Falcon: Update to CarrizoPI 1.1.0.1 (Binary PI 1.5)
2. This is tested on Bettong Alfa(DDR3) and Beta(DDR4). Both of the
boards can boot to Windows 10. PCIe slots, USB and NIC work.
Change-Id: I6cf3e333899f1eb2c00ca84c96deadeea0e23b07
Signed-off-by: WANG Siyuan <wangsiyuanbuaa@gmail.com>
Signed-off-by: WANG Siyuan <SiYuan.Wang@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/11752
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The SB700 silicon is somewhat buggy; if the links come up in an
incorrect state after POR the silicon cannot automatically recover.
If a disk fails to come online, reset the associated link and try
disk detection again.
Change-Id: I29051af5eca5d31b6aecc261e9a48028380eccb3
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11999
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The existing prefetcher configuration was incorrect; use the correct
values from the AMD Family 10h and Family 15h BKDGs as appropriate.
Change-Id: I287ffa6345e1f4d232d4b2ea4251650ada3fda92
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/12417
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The existing code enabled ECC before clearing memory. As the
AMD CPUs will generate MCEs on any invalid check bits, this
resulted in random lockups during memory training due to the
uniniailized check bits.
Initialize ECC check bits before enabling ECC hardware.
Change-Id: I992e7040520570893ba6a213138dd57bfa14733b
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11996
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
In AHCI mode SeaBIOS randomly fails to detect disks (AHCI timeouts),
with the probability of a failure increasing with the number of disks
connected to the controller. Resetting the SATA controller appears to
show the true state of the underlying hardware, allowing the drive
detection code to attempt link renegotiation as needed.
Change-Id: Ib1f7c5f830a0cdba41cb6f5b05d759adee5ce369
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11998
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
SeaBIOS AHCI drive detection randomly fails for drives present
on the secondary channel of each AHCI SATA BAR. Forcing native
drive detection in AHCI mode resolves this issue.
Change-Id: I34eb1d5d3f2f8aefb749a4eeb911c1373d184938
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11997
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Certain DIMMs, for example DIMMs on which the EEPROM has been modified
by the end user, may not contain a valid SPD checksum. While this is
not a normal condition, it may be useful to allow a checksum override
while memory timing parameters are being altered, e.g. in the course
of overclocking or underclocking, or when recovering from a bad SPD
write.
This is an advanced level feature primarily useful for debugging
and development.
Change-Id: Ia743a13348d0a6e5e4dfffa04ed9582e0f7f3dad
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11987
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
The plugged devices on PCIe should use IOAPIC2 instead of standard
IOAPIC1. The entries in IOAPIC2 count from the end of IOAPIC1.
The unchanged code worked because the OS uses MSI instead APIC.
To test that, boot linux with parameter pci=nomsi and see if the devices
like NIC work well as they do without the booting parameter.
run 'cat /proc/interrupts' to see if devices actually use
no-msi.
Change-Id: I5eab28956b7a3fbc7c10447e99d6c11dbe6a1d14
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/12363
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
The plugged devices on PCIe should use IOAPIC2 instead of standard
IOAPIC1. The entries in IOAPIC2 count from the end of IOAPIC1.
The unchanged code worked because the OS uses MSI instead APIC.
To test that, boot linux with parameter pci=nomsi and see if the devices
like NIC work well as they do without the booting parameter.
run 'cat /proc/interrupts' to see if the devices actually use
no-msi.
Change-Id: Id6d35224312aeb6e3a175ec9990e0bb34bad67e7
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/12362
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
The AMD Register Programming Reference states that the user should
have the option to disable Active Link Power Management for two
reasons. First, some drives may not function correctly with the
ALPM implementation of the SP5100, and second there are some
situations where low latency access is more important than the
power savings created by using ALPM.
Allow the user to disable ALPM if desired.
Change-Id: I88055cbb4df4d7ba811cef7056c0a6ca2612fcb0
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11993
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Don't hard code the PDCurses version number in every file
added to the object list.
Change-Id: Ic2e9230b7e3089c60dd7f442e3ea7baffb4aa400
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/12397
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Add intelvbttool to list of utilities to be build tested by the build
servers.
Change-Id: Id75724726778fd939fb7497f5b33a3d5d58124fd
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/12085
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Under specific circumstances, for instance in low power or fanless
machines, it may be useful to cap the maximum P-state of the CPU.
Allow the maximum CPU P-state to be set via an NVRAM option.
Change-Id: Ifdbb1ad11a856f855c59702ae0ee99e95b08520e
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11985
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins)
o. Make some gpio changes base on Emile spec.
o. Init sdmmc function.
o. Revert cpu freq reducing in recovery mode since Emile
have more effective thermal than Mickey.
o. Revert the changes of lpddr3-samsung-2GB config.
BUG=chrome-os-partner:46658
TEST=build and boot on Emile
BRANCH=veyron
Change-Id: Ibdc2ce511c8e215c202e2067d79f4c60cdfca738
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 39e5436c8aa3353af77f62e548f48d19dc722999
Original-Change-Id: Ib2c78c9b5e3ac6620ab1772879a7ea0f7007f96e
Original-Signed-off-by: ZhengShunQian <zhengsq@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/307651
Original-Commit-Ready: Shunqian Zheng <zhengsq@rock-chips.com>
Original-Tested-by: Shunqian Zheng <zhengsq@rock-chips.com>
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/12396
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This patch enables GPP_B5 as ACPI_SCI for wake.
It also defines touchpad wake device in ACPI with GPE0_DW0_05 for _PRW.
BUG=chrome-os-partner:43491
BRANCH=none
TEST=Build for kunimitsu. Tested wake from touchpad on a reworked kunimitsu board.
Change-Id: I4347be8f7a4552c6b583f0797fab64045aa9792e
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 8c21f3b5df21d96937975dc20ee5e2f83fb3d75e
Original-Change-Id: I76e69bdba81ec22ae67c7cff3a807cea8c54a5b3
Original-Signed-off-by: Archana Patni <archana.patni@intel.com>
Original-Signed-off-by: Subramony Sesha <subramony.sesha@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/311007
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/12395
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This is a copy of mickey and renamed.
CQ-DEPEND=CL:306967
BUG=chrome-os-partner:46658
TEST=build coreboot
BRANCH=veyron
Change-Id: I9e1232f3f1334ec747a5beb52f214635a7ab08ae
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 9316a9ec27d5799e290add1e5818f4449b680fde
Original-Change-Id: I906de7bbc8b8e110e0774c14ec636a327230b325
Original-Signed-off-by: ZhengShunQian <zhengsq@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/307620
Original-Commit-Ready: David Hendricks <dhendrix@chromium.org>
Original-Tested-by: David Hendricks <dhendrix@chromium.org>
Original-Tested-by: Shunqian Zheng <zhengsq@rock-chips.com>
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/12394
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
When enabling CONFIG_SEPARATE_VERSTAGE the functions in chromeos.c need
to be put into verstage.
BUG=chrome-os-partner:46289
BRANCH=none
TEST=enable SEPARATE_VERSTAGE and build for chell
Change-Id: Ic58a6e383806a7a64b9af760e194fddf15c645f1
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 403f0707074802371237beecf1941034c1612f10
Original-Change-Id: Ib1154869974337b53a64efa5892a83ecd81973b8
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/310928
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/12393
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
In order to wake from trackpad and wifi we cannot enable Deep S3.
BUG=chrome-os-partner:46289
BRANCH=none
TEST=wake from trackpad on chell
Change-Id: Ieb2210d5d15b5f5d744a686c743df11e5d72558f
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: cbc74e13b754249869144df84ab2bb9b7e77119a
Original-Change-Id: I84265197fb964e0594a4672a40fd3e2362e29ae1
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/311306
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/12392
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This adds the SPD for SK-Hynix H9CCNNNCLTMLAR memory to be
used in the EVT build.
BUG=chrome-os-partner:47346
BRANCH=none
TEST=emerge-chell coreboot
Change-Id: I45d0840e43ed81d8286b005f0a99b014b7f0cf28
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 1e917440141c586cb370147f9c5b782d6e77ea10
Original-Change-Id: I02f1349f38d83f4a09887adf81384b5a8f475dd0
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/311214
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/12391
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The family variable was not being set yet for skylake, add this
to the current boards.
BUG=chromium:551715
BRANCH=none
TEST=emerge-glados coreboot
Change-Id: Icf175e4ce89cb47b9eabce1399eb3ef29e7a607f
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 7e379402f38634eb0204e03b616111fff9515cec
Original-Change-Id: Ia31fb04b5c22defc71a0c02d9fa1eff93ccbc49d
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/311213
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/12390
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The net names are offset by 1. My board is not stable enough
to really test all of these yet...
BUG=chrome-os-partner:46289
BRANCH=none
TEST=emerge-chell coreboot
Change-Id: I65e17323f2819eca130c1bf0ccbc3ea0ec2f383f
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 327194dcfcb3a5c9f431b1a2e26c230cb2b2a48b
Original-Change-Id: I50e9ea091bb6e6a1da3a9434ae0fbf3f652fa354
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/311113
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/12389
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This script generates the rough format for the release notes, and will
add new commits to the top of an existing release notes text file. At
that point, a lot still needs to be done by hand - deciding which
commits deserve to be in the release notes, and which don't.
When updating the existing release notes, The updates are just added
to the top of the file, and need to be placed manually. This just
helps prevent missed commits.
When editing the release notes, don't delete or modify the commit id
lines after they've been classified - Just move them to the bottom of
the file until the notes are ready to publish. This keeps those commits
from re-appearing at the top of the file the next time the script is run
to update the notes.
Change-Id: I0a699c528117f0347a65a3bed4402f3a57309e3c
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: http://review.coreboot.org/12318
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins)
This patch adds CC6 power save support to the AMD Family 15h
support code. As CC6 is a complex power saving state that
relies heavily on CPU, northbridge, and southbridge cooperation,
this patch alters significant amounts of code throughout the
tree simultaneously.
Allowing the CPU to enter CC6 allows the second level of turbo
boost to be reached, and also provides significant power savings
when the system is idle due to the complete core shutdown.
Change-Id: I44ce157cda97fb85f3e8f3d7262d4712b5410670
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11979
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
A wrong function name made an #ifdef'd code path not compile. Fix that,
and also use IS_ENABLED() to make sure that such issues won't come up
again there.
Change-Id: Iccb98842dde498cce32cd86a770e22a506ad4cc2
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/12296
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This is an attempt at better compatibility with driver matching etc.
Change-Id: I26eccbe17a31ba2042d0fe1bb424d9f380c0a82e
Signed-off-by: Urja Rannikko <urjaman@gmail.com>
Reviewed-on: http://review.coreboot.org/12351
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Pulled getpir from the attic and used data provided by it
to create the table a bit more programmatically and
added the AGP slot so the video card is given an IRQ
Change-Id: Id3dc1a77ac6382405f5f36707994287e84e1168b
Signed-off-by: Urja Rannikko <urjaman@gmail.com>
Reviewed-on: http://review.coreboot.org/12350
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Up to now the GPIO set up macros for input sets up GPIOs to be
mapped to memory space while macros for outputs sets up GPIOs
to be mapped to legacy io space. This patch adds two additional
macros for legacy output definition and changes the old macros
to memory space mapping.
In addition, the intel/minnowmax mainboard is modified to use
the legacy macros for outputs to ensure this mainboard stays
unchanged in terms of functionality.
TEST=Booted siemens/mc_tcu3 and ensured GPIO set up in linux.
Change-Id: I99e98d31e1a59e63c58d536f2c493d6dcbfd1e75
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: http://review.coreboot.org/12340
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
DRAM training accounts for most of the romstage startup time, yet
if the hardware configuration has not changed from the previous boot
the previously discovered training values are still valid. Use them
if the DIMM configuration has not changed since the last boot.
The SPD values of all installed DIMMs are hashed and stored in the S3
resume data area of the main system Flash device. If a DIMM is changed
the hash will almost certainly change as well, forcing retraining on next
boot.
Change-Id: I37ed277b16476d38e4af76c6ae827a575c6b017d
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11976
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
When we first added ARM support to coreboot, it was clear that the
bootblock would need to do vastly different tasks than on x86, so we
moved its main logic under arch/. Now that we have several more
architectures, it turns out (as with so many things lately) that x86 is
really the odd one out, and all the others are trying to do pretty much
the same thing. This has already caused maintenance issues as the ARM32
bootblock developed and less-mature architectures were left behind with
old cruft.
This patch tries to address that problem by centralizing that logic
under lib/ for use by all architectures/SoCs that don't explicitly
opt-out (with the slightly adapted existing BOOTBLOCK_CUSTOM option).
This works great out of the box for ARM32 and ARM64. It could probably
be easily applied to MIPS and RISCV as well, but I don't have any of
those boards to test so I'll mark them as BOOTBLOCK_CUSTOM for now and
leave that for later cleanup.
BRANCH=None
BUG=None
TEST=Built Jerry and Falco, booted Oak.
Change-Id: Ibbf727ad93651e388aef20e76f03f5567f9860cb
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/12076
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
In order to have a proper runtime-modifyable page table API (e.g. to
remap DRAM after it was intialized), we need to remove any external
bookkeeping kept in global variables (which do not persist across
stages) from the MMU code. This patch implements this in a similar way
as it has recently been done for ARM32 (marking free table slots with a
special sentinel value in the first PTE that cannot occur as part of a
normal page table).
Since this requires the page table buffer to be known at compile-time,
we have to remove the option of passing it to mmu_init() at runtime
(which I already kinda deprecated before). The existing Tegra chipsets
that still used it are switched to instead define it in memlayout in a
minimally invasive change. This might not be the best way to design this
overall (I think we should probably just throw the tables into SRAM like
on all other platforms), but I don't have a Tegra system to test so I'd
rather keep this change low impact and leave the major redesign for
later.
Also inlined some single-use one-liner functions in mmu.c that I felt
confused things more than they cleared up, and fixed an (apparently
harmless?) issue with forgetting to mask out the XN page attribute bit
when casting a table descriptor to a pointer.
BRANCH=None
BUG=None
TEST=Compiled Ryu and Smaug. Booted Oak.
Change-Id: Iad71f97f5ec4b1fc981dbc8ff1dc88d96c8ee55a
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/12075
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Among its other restrictions (which are noted in a comment above the
function prototype and stay in place), our makeshift fine-grained page
table support for ARM32 has the undocumented feature that it relies on
a global bookkeeping variable, causing all sorts of fun surprises when
you try to use it from multiple stages during the same boot. This patch
redesigns the bookkeeping to stay completely inline in the (persistent)
TTB which should resolve the issue. (This had not been a problem on any
of our platforms for now... I just noticed this because I was trying to
solve the same issue on ARM64.)
BRANCH=None
BUG=None
TEST=Booted veyron_jerry. Mapped a second fine-grained memory range
from romstage, confirmed that it finds the next free spot and leaves the
bootblock table in place.
Change-Id: I325866828b4ff251142e1131ce78b571edcc9cf9
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/12074
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Aaron Durbin