The original patch from chromium was a bit of a mishmash.
Between that, rebasing and using the coreboot.org UART infrastructure,
the patch has changed a bit from the original. It seems reasonable to
keep these changes together.
- build in the ipq UART and turn on bootblock console
- sets LPAE and ROM header address
- adds cpd.c to storm
The original commit:
ipq8064: make UART driver work in bootblock
This patch it the last one in the chain adapting the ipq9064 UART
driver for use in coreboot. A new config option
(CONSOLE_SERIAL_IPQ806X) is being introduced to control inclusion of
the driver.
The previously introduced uart_wrapper.c is now included in the build
to provide the console driver structure used by ramstage.
Necessary configuration options are added to allow use of UART in the
bootblock.
BUG=chrome-os-partner:27784
TEST=with this change the coreboot image on AP148 prints a banner on
start up:
coreboot-4.0 Wed Apr 23 16:24:51 PDT 2014 starting...
Original-Change-Id: I129ee30ba17a5061b30cfee56c135df31eba98b5
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/196663
(cherry picked from commit 42ca8994361327c24e7a611505b21534dd231f30)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I1175e74ed639cdc27a1a677fba65de2dd2b13a91
Reviewed-on: http://review.coreboot.org/7875
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins)
GPIO init marcos are not enough to initialize different gpio attributes
BUG=none
TEST=emerge-rambi coreboot works well
Original-Change-Id: I193fa7b3e22632cacb555e726e3dd3991f4f4faa
Original-Signed-off-by: Kane Chen <kane.chen@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/200531
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
(cherry picked from commit 5e0fcbcd7cefcfccb5b565003336d197bb29e4cc)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I6bf4db9397733a003dfdedc6eb63b82127917851
Reviewed-on: http://review.coreboot.org/7953
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
This brings in the banana_cs version of the SPI driver.
BUG=chrome-os-partner:27784
TEST=none
Original-Change-Id: Ie93ec8c962c26fff1f0a235516cd8a4062cab40b
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/194225
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
(cherry picked from commit 3cada6e4ed51a6d4f637aa31a1a836352a99d13d)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I0a58a4ddaf9375c22c9b2b249a2baa2c5538ba6c
Reviewed-on: http://review.coreboot.org/7982
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Our tests with the I2C bit clear mechanism (recovering from "lost
arbitration" errors) show that the bit clear hardware does not work
correctly in some situations. When a wedged slave device tries to send
more than one 0-to-1-to-0 transition to the host (e.g. leftover bits
from an aborted read), the controller never transitions the BC_ENABLE
bit back to zero.
This patch adds a long timeout to the bit clear code that waits for
register transitions as a safeguard. This way, We will still eventually
exit the function (probably followed by a reboot). Our tests show that
this will recover from all conditions after at most a few reboots.
BRANCH=nyan
BUG=chrome-os-partner:28323
TEST=Ran wedge_ack and wedge_read tests with software_i2c patch, system
recovered as expected in all cases.
Original-Change-Id: I6c37119130e1240e1ef3a5944582abbcd2e39ff0
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/200265
Original-Reviewed-by: Tom Warren <twarren@nvidia.com>
Original-Reviewed-by: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit 4c8d0af25cf107a38c856b38067b8f2f74384f22)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I600d5c9a8e68719cf8795c083c5fac63f626f5bf
Reviewed-on: http://review.coreboot.org/7948
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
This patch adds I2C emulation in software through raw toggling of the
SDA/SCL lines. Platforms need to provide bindings to toggle their
respective I2C busses for this to work (e.g. by pinmuxing them as GPIOs,
currently only enabled for Tegra).
This is mostly useful as a debugging feature, to drive unusual states on
a bus and closely monitor the device output without the need of a bus
analyzer. It provides a few functions to "wedge" an I2C bus by aborting
a transaction at certain points, which can be used to test if a system
can correctly recover from an ill-timed reboot. However, it can also
dynamically replace the existing I2C transfer functions and drive
some/all I2C transfers on the system, which might be useful if a driver
for the actual I2C controller hardware is not (yet) available.
Based on original code by Doug Anderson <dianders@chromium.org> and
Hung-ying Tyan <tyanh@chromium.org> for the ChromeOS embedded
controller project.
BRANCH=None
BUG=chrome-os-partner:28323
TEST=Spread tegra_software_i2c_init()/tegra_software_i2c_disable()
through the code and see that everything still works.
Original-Change-Id: I9ee7ccbd1efb38206669a35d0c3318af16f8be63
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/198791
Original-Reviewed-by: Doug Anderson <dianders@chromium.org>
Original-Reviewed-by: Tom Warren <twarren@nvidia.com>
Original-Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
(cherry picked from commit 8f71503dbbd74c5298e90e2163b67d4efe3e89db)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Id6c5f75bb5baaabd62b6b1fc26c2c71d9f1ce682
Reviewed-on: http://review.coreboot.org/7947
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
When doing DP attach, we need to make sure the register change to
take effect immediately, otherwise it may fail to catch the attach
timing.
BRANCH=None
BUG=chrome-os-partner:28128
TEST=Display works and system boots up on Nyan and Big
Original-Change-Id: I569dc435a1aa4aac0d5ecd0655d2ad87a791246d
Original-Signed-off-by: Vince Hsu <vinceh@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/200414
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Original-Reviewed-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
(cherry picked from commit 47b86e2893fa667bebada6a0e0b443886dd5ee02)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Icf809b46e675bbdb8633d9a4f31d005d6644bd2a
Reviewed-on: http://review.coreboot.org/7951
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
We initialized the dc before the plld's initialization. So some
of the dc init settings did not took effect. This patch moves
the clock_display() before the dc init call.
BRANCH=None
BUG=chrome-os-partner:28128
TEST=Display works and system boots up on Nyan and Big
Original-Change-Id: If2c40e2526fdf7a6aa33a2684ba324bd0ec40e90
Original-Signed-off-by: Vince Hsu <vinceh@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/200413
Original-Reviewed-by: Tom Warren <twarren@nvidia.com>
Original-Reviewed-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Original-Commit-Queue: David Hendricks <dhendrix@chromium.org>
Original-Tested-by: David Hendricks <dhendrix@chromium.org>
(cherry picked from commit dc3cc253c319c21772c30962d963ec9dfc4944a7)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I021290f4293c740666d460f73fecbe79146896a4
Reviewed-on: http://review.coreboot.org/7950
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
The IO accessor wrappers are used to allow integer register addresses.
A structure defining UART interface configuration is declared and
defined. A few long lines are wrapped. Interface functions are renamed
to match the wrapper API.
cdp.c is edited to fit into coreboot compilation environment, and the
only function required by the UART driver if exposed, the rest are
compiled out for now.
BUG=chrome-os-partner:27784
TEST=after all patches are applied the serial console on AP148 becomes
operational.
Original-Change-Id: I80c824d085036c0f90c52aad77843e87976dbe49
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/196662
Original-Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
(cherry picked from commit 5e9af53a069cd048334a3a28f0a4ce9df7c96992)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I80c824d085036c0f90c52aad77843e87976dbe49
Reviewed-on: http://review.coreboot.org/7874
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
These patch modifies .h files to match the coreboot API. A few more
significant changes are:
- UART specific fields removed from common board structure in cdp.h.
These fields are set at compile time in u-boot (where this
structure comes from), they will be set in a different structure in
the UART driver in an upcoming patch.
- an inline wrapper is added in gpio.h to provide GPIO API the UART
driver expects.
- the ipq_configure_gpio() is passed the descriptor placed in ro data.
BUG=chrome-os-partner:27784
TEST=none
Original-Change-Id: Id49507fb0c72ef993a89b538cd417b6c86ae3786
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/196661
Original-Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
(cherry picked from commit ea400f1b720eb671fa411c5fd1df7efd14fdacd6)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I2c7be09675b225de99be3c94b22e9ee2ebb2cb9a
Reviewed-on: http://review.coreboot.org/7873
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Make sure it is initialized at different stages.
BUG=chrome-os-partner:27784
TEST=manual
. not much at this point, just verified that it compiles
Original-Change-Id: I343e7a6648e2ca935606cd76befd204aabd93726
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on:
https://chromium-review.googlesource.com/196592
(cherry picked from commit aedc41924313e5c21aef97b036f5a0643d59082d)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I4a90ae5ba6c9a561b7d5c938d18b6ea2b855855f
Reviewed-on: http://review.coreboot.org/7981
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
The following patches had to be squashed
to properly build all the different ARM boards.
ipq8064: storm: re-arrange bootblock initialization
The recent addition of the storm bootblock initialization broke
compilation of Exynos platforms. The SOC specific code needs to be
kept in the respective source files, not in the common CPU code.
As of now coreboot does not provide a separate SOC initialization API.
In general it makes sense to invoke SOC initialization from the board
initialization code, as the board knows what SOC it is running on.
Presently all what's need initialization on 8064 is the timer. This
patch adds the SOC initialization framework for 8064 and moves there
the related code.
BUG=chrome-os-partner:27784
TEST=manual
. nyan_big, peach_pit, and storm targets build fine now.
Original-Change-Id: Iae9a021f8cbf7d009770b02d798147a3e08420e8
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/197835
(cherry picked from commit 3ea7307b531b1a78c692e4f71a0d81b32108ebf0)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
arm: Redesign mainboard and SoC hooks for bootblock
This patch makes some slight changes to the way bootblock_cpu_init() and
bootblock_mainboard_init() are used on ARM. Experience has shown that
nearly every board needs either one or both of these hooks, so having
explicit Kconfigs for them has become unwieldy. Instead, this patch
implements them as a weak symbol that can be overridden by mainboard/SoC
code, as the more recent arm64_soc_init() is also doing.
Since the whole concept of a single "CPU" on ARM systems has kinda died
out, rename bootblock_cpu_init() to bootblock_soc_init(). (This had
already been done on Storm/ipq806x, which is now adjusted to directly
use the generic hook.) Also add a proper license header to
bootblock_common.h that was somehow missing.
Leaving non-ARM32 architectures out for now, since they are still using
the really old and weird x86 model of directly including a file. These
architectures should also eventually be aligned with the cleaner ARM32
model as they mature.
BRANCH=None
BUG=chrome-os-partner:32123
TEST=Booted on Pinky. Compiled for Storm and confirmed in the
disassembly that bootblock_soc_init() is still compiled in and called
right before the (now no-op) bootblock_mainboard_init().
Original-Change-Id: I57013b99c3af455cc3d7e78f344888d27ffb8d79
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/231940
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
(cherry picked from commit 257aaee9e3aeeffe50ed54de7342dd2bc9baae76)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Id055fe60a8caf63a9787138811dc69ac04dfba57
Reviewed-on: http://review.coreboot.org/7879
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
It's not needed, as we can use a simpler macro instead.
Change-Id: Ib96f5cfa434d0383ee3bfe49995a8f8830987f20
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/7925
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
When a watchdog reset happens, the SOC will reset but other parts of the
system might not. In order to detect those situations we can check the
rst_status register in the PMC.
BUG=chrome-os-partner:28559
TEST=With this and a change which uses the new function in the nyan boards,
built for nyan, nyan_big and nyan_blaze. Booted normally, through EC reset,
software reset ("reboot" command from the terminal), and through watch dog
reset. Verified that the new code only triggered during the watchdog reset and
that the system rebooted and was able to boot without going into recovery mode
unnecessarily.
BRANCH=nyan
Original-Change-Id: I7430768baa0304d4ec8524957a9cc37078ac5a71
Original-Signed-off-by: Gabe Black <gabeblack@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/198581
Original-Reviewed-by: Tom Warren <twarren@nvidia.com>
Original-Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
Original-Commit-Queue: Gabe Black <gabeblack@chromium.org>
Original-Tested-by: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit 5fdc0239fc2960167dd9c074f3804bf9e4ad686a)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I5845d3a4d819868f5472c758e83e83b00e141b72
Reviewed-on: http://review.coreboot.org/7899
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
This is a fix for the 'Lost arb' we're seeing on Nyan* during
reboot stress testing. It occurs when we are slamming the
default PMIC registers with pmic_write_reg().
Currently, I've only captured this a few times, and the bus
clear seemed to work, as the PMIC writes continued (where
they'd hang the system before bus clear) for a couple of regs,
then it hangs hard, no messages, no 2nd lost arb, etc. So
I've added code to the PMIC write function that will reset the
SoC if any I2C error occurs. That seems to recover OK, i.e. on
the next reboot the PMIC writes all go thru, boot is OK, kernel
loads, etc.
BUG=chrome-os-partner:28323
BRANCH=nyan
TEST=Tested on nyan. Built for nyan and nyan_big.
Original-Change-Id: I1ac5e3023ae22c015105b7f0fb7849663b4aa982
Original-Signed-off-by: Tom Warren <twarren@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/197732
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-by: Jimmy Zhang <jimmzhang@nvidia.com>
(cherry picked from commit f445127e2d9e223a5ef9117008a7ac7631a7980c)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I584d55b99d65f1e278961db6bdde1845cb01f3bc
Reviewed-on: http://review.coreboot.org/7897
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reduce difference with exynos5420/clock.c by fixing some whitespace
and an include directive.
Change-Id: Ifbdd61c8300f3988f5f729fe7d6124ac8a9b7821
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/7926
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Some panels (including those on Big DVT) cannot work fine without link training
before sending the video signals, especially multi-lane Full HD panels. We need
to use the fast link training functions from kernel to support them.
BRANCH=Nyan
BUG=chrome-os-partner:28128, chrome-os-partner:28129
TEST=tested on nyan, nyan_big dvt.
Vince verified on Full HD panels.
Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Change-Id: Ifde8daf0ebdc6fb407610d3563f3311b2a72dbc4
Original-Reviewed-on: https://chromium-review.googlesource.com/196162
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Original-Commit-Queue: Hung-Te Lin <hungte@chromium.org>
Original-Tested-by: Hung-Te Lin <hungte@chromium.org>
(cherry picked from commit 992132ff3431fc7abba10cc8e910e36d4f3a3f7a)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I5ed091ae7a872fd674ab21f9f80267052fcd24b1
Reviewed-on: http://review.coreboot.org/7864
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Port 80h codes were coming out of bootblock and romstage scrambled, or
were not coming out at all. Initializing the LPC signal pads as LPC
fixes that issue.
Change-Id: I16943513f2eb6fe8fa58766aaa82dac182440c34
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/7802
Tested-by: build bot (Jenkins)
Reviewed-by: Werner Zeh <werner.zeh@gmx.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The GPIO_NC1 #define was added to handle GPIOs that are not on func0.
This is already handled elsewhere in the GPIO code, so is not needed.
- Remove the single GPIO_NC1 from platforms using fsp_baytrail
- Revert the GPIO_INPUT_PU_10k #define to remove the _func argument.
Update everywhere this macro is called.
- Remove GPIO_NC1
Change-Id: I32f337af7bc88eab821d9a8c375145b45718275f
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/7849
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The GPIO_OUT_LOW #define was missing an internal comma in both
soc/intel/baytrail and soc/intel/fsp_baytrail.
Thanks to Werner Zeh for pointing this out.
Change-Id: I2e5507058739e5fdc2c0e43e0380058458870e46
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/7801
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Werner Zeh <werner.zeh@gmx.net>
In order to protect ourselves from the kernel driver not honoring or
placing the correct frequency in the backlight register always set one.
This code path picks 200Hz as the default if nothing is specified in
device tree. It's somewhat arbitrary but that frequency is valid for all
the eDP panel specs we've seen being used on baytrail devices.
BUG=chrome-os-partner:28267
BRANCH=baytrail
TEST=Built and booted in normal mode. Noted register write stuck.
Original-Change-Id: Ifec29f0671e9f14ba57b9643c29d8bb2cd07eef5
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/196821
Original-Reviewed-by: Marc Jones <marc.jones@se-eng.com>
(cherry picked from commit 2eaa650860ebbc838dbf8c1c1ca2259ac64141ac)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Ifec29f0671e9f14ba57b9643c29d8bb2cd07eef5
Reviewed-on: http://review.coreboot.org/7845
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This ensures that SPI is ready when eventlog code is used.
x86 platforms which use eventlog invoke elog_clear() in GSMI and
elog_add_event_raw() when deciding the boot path based on ME status.
For the SMM case spi_init() is called during the finalize stage in
SMM setup. For the boot path case we can call spi_init() at the
beginning of BS_DEV_INIT and it will be ready to use when the boot
path is determined from the ME status.
BUG=none
BRANCH=none
TEST=tested on Link (bd82x6x), Beltino (Lynxpoint), and Rambi
(Baytrail) with follow-up patch
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Original-Change-Id: Id3aef0fc7d4df5aaa3c1c2c2383b339430e7a6a1
Original-Reviewed-on: https://chromium-review.googlesource.com/194525
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
Original-Commit-Queue: David Hendricks <dhendrix@chromium.org>
Original-Tested-by: David Hendricks <dhendrix@chromium.org>
(cherry picked from commit 173d8f08e867bab8c97a6c733580917f5892a45d)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Ifaed677bbb141377b36bd9910b2b1c3402654aad
Reviewed-on: http://review.coreboot.org/7756
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Panel datasheet defines some delay between PWM signal out and
backlight enable. This change fixes the current sequence
and makes the delays adjustable by dt setting.
BRANCH=none
BUG=chrome-os-partner:28008
TEST=Verified on Big DVT and Nyan/Norrin panels.
Panel works fine with dev mode, and the measurement
of power on sequence meets panel requirements.
Original-Change-Id: If6015bbb6015a3b203d425f5e90f676ad786b5e8
Original-Signed-off-by: Ken Chang <kenc@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/196183
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
(cherry picked from commit 2bbcaa7281222ffc0b4026e8b1eb4c210a8e308a)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Id6424f66eb8dc6adeb70eaa33df742f4e57983c3
Reviewed-on: http://review.coreboot.org/7776
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
Enable pinmux clamp function to avoid pinmux conflict.
For pins which are configured to tristate enabled, the inputs to the
controller will be clamped to zero. This can be used to avoid pinmux
conflicts since the tristate bit is set to 1 in the power-on-reset
pinmux setting.
With pinmux clamp enabled, we need to configure all the input pins
to tristate disabled.
BUG=chrome-os-partner:27091
BRANCH=None
TEST=built and booted successfully, display worked fine.
Original-Change-Id: Id79a717f2025c812908c7152d439351208aee8d2
Original-Signed-off-by: Ken Chang <kenc@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/194060
Original-Reviewed-by: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit c95d6fe79810612cfad721667657cdcb87068d23)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I1b23df8b90f83ea2b2c08c4364d90fe71533a5a0
Reviewed-on: http://review.coreboot.org/7775
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
- Build gpio.c into romstage
- Add functions to translate the GPIO # to a pad #, then return the
value read from the GPIO.
- Add functions to configure the GPIO - Function, Pull up/down, pull
strength, Input/Output, and Output level.
Change-Id: Ic37dfc9a74a598023bdf797d31087428adec176a
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/7796
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Werner Zeh <werner.zeh@gmx.net>
This change introduces LPAE for virtual address translation. To enable it, set
ARM_LPAE. Boot slows down about 4ms on Tegra124 with LPAE enabled.
TEST=Booted nyan with and without LPAE. Built nyan_big and daisy.
BUG=None
BRANCH=none
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Tested-by: Daisuke Nojiri <dnojiri@google.com>
Original-Change-Id: I74aa729b6fe6d243f57123dc792302359c661cad
Original-Reviewed-on: https://chromium-review.googlesource.com/187862
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Original-Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org>
Original-Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
(cherry picked from commit 6d8c8b2bbdc70555076081eb3bfaabde7b4a398f)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I8980375c14758af35f7d5ec5244be963e5462d8a
Reviewed-on: http://review.coreboot.org/7749
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
The current algo sets dc shift clock divider to 5 and PLLD DIVP
to 0, this is causing VCO out of the characterized range for some
panels.
This CL changes the dc shift clock divider to 1 and calculates a
proper DIVP to have the VCO inside the characterized range, i.e.,
500MHz ~ 1000MHz.
BRANCH=none
BUG=none
TEST=Verify on below panels the pixel clock frequencies are correct.
1. AUO B133XTN01.3 (69.5 MHz)
pixelclk(MHz), pll_d(MHz), m/n/p
without: 69.5 695 12/695/0
with: 69.5 139 3/139/2
2. AUO B140HTT01.0 (141 MHz)
pixelclk(MHz), pll_d(MHz), m/n/p
without: VCO (1410000000) out of range. Cannot support.
with: 141 282 2/94/1
3. LG LP140WH8 (76.32 MHz)
pixelclk(MHz), pll_d(MHz), m/n/p
without: 76.32 763.2 5/381/0
with: 76.3125 152.625 8/407/2
4. N116BGE-EA2 (76.42 MHz)
pixelclk(MHz), pll_d(MHz), m/n/p
without: 76.40 764 3/191/0
with: 76.375 152.75 12/611/2
Original-Change-Id: Id4b3a4865acde37a97d7346ec88406f5237304eb
Original-Signed-off-by: Ken Chang <kenc@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/195534
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
(cherry picked from commit 1b56566786aa86c14f691fa3858b878f27b6b4de)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Ia9de93420e60323f143a42db842febdd3706fe44
Reviewed-on: http://review.coreboot.org/7773
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
The pixel clock for some panel (ex: CMN N116BGE-EA2: 76420000) cannot be matched
by our PLLD params finding algorithm, after VCO/CF limitations are applied.
To support these panels, we want to allow "best matched" params.
BRANCH=nyan
BUG=none
TEST=emerge-nyan_big coreboot chromeos-bootimage;
emerge-nyan coreboot chromeos-bootimage;
# Successfully brings up display on Nyan_Big EVT2 and Nyan Norrin.
Original-Change-Id: If8143c2062abd2f843c07698ea55cab47bf1e41a
Original-Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/195327
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
(cherry picked from commit 8aa66e659e3c60296f05e59b4343496a850ea019)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I623db44de35fecee5539e4d72f93f28b5fa0b59c
Reviewed-on: http://review.coreboot.org/7771
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
We found that without enabling DC in tegra_dc_sor_enable_dc, kernel would have
problem showing the text console before graphics interface is initialized, for
example "chromeos factory install shim (text only)" or the "splash screen".
BRANCH=none
BUG=chrome-os-partner:28082
TEST=emerge-nyan coreboot chromeos-bootimage
Boots factory install shim and see text console.
Original-Change-Id: I6fce963ceddd125dd52789d2ec843cc2ee05f1f5
Original-Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/195388
(cherry picked from commit 375a86be9b23650cd96e46b07c7a0b5c10970797)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Ib75e3ffac9b216c7486845cb8459dd8952d51fe6
Reviewed-on: http://review.coreboot.org/7770
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
Dump all SOR registers for debug purpose. By default, this function
is not being built in.
BRANCH=none
BUG=chrome-os-partner:27413
TEST=build nyan and nyan_big.
Original-Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Change-Id: I7f44709b8572b9eac33c2193b92a65bf2b22aa76
Original-Reviewed-on: https://chromium-review.googlesource.com/194738
Original-Reviewed-by: Tom Warren <twarren@nvidia.com>
Original-Commit-Queue: Tom Warren <twarren@nvidia.com>
Original-Tested-by: Tom Warren <twarren@nvidia.com>
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
(cherry picked from commit d08c0f7c5e8ac094987b09fae96e8133ed9c08c5)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I1341bbbd0ea6277e5a1b286d6f088f2961070416
Reviewed-on: http://review.coreboot.org/7769
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
This patch adds some documentation to the additional PLL divisor
constraints on the intermediary VCO and CF values that we just found out
about. PLLC divisors for some oscillators had to be adjusted
accordingly.
It also adds a new clock_get_pll_input_khz() function to replace
clock_get_osc_khz() in cases where you want to factor in the built-in
predivider for 38.4 and 48 MHz oscillators.
BUG=None
TEST=Still boots.
Original-Change-Id: Ib6e026dbab9fcc50d6d81a884774ad07c7b0dbc3
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/194474
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
(cherry picked from commit 3f1f565baf100edcd486055e4317c675c882396f)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I091f42bf952a4b58ef2c30586baa5bf7496fa599
Reviewed-on: http://review.coreboot.org/7768
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
This register needs to be set properly during display init.
BRANCH=none
BUG=chrome-os-partner:27413
TEST=build nyan and nyan_big. nyan display works fine.
nyan_big display works as well. However, the mode setting
needs to be based on either devicetree or EDID.
Original-Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Change-Id: I93c69d8042a3f3c19f4e24801423b73246e37031
Original-Reviewed-on: https://chromium-review.googlesource.com/194739
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Original-Commit-Queue: Hung-Te Lin <hungte@chromium.org>
Original-Tested-by: Hung-Te Lin <hungte@chromium.org>
(cherry picked from commit ee9a3c472c5621edebefcc8882582c6fc01255e2)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Ie642a008eaf6c4ab68ede1dde98ff4268f51fc9c
Reviewed-on: http://review.coreboot.org/7767
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
BRANCH=none
BUG=chrome-os-partner:27413
TEST=build nyan and nyan_big. nyan display works fine.
nyan_big display still does't work until all related
patches are built in. (CL:194739)
Original-Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Change-Id: Ic5d977f695be127693f1ecc3ba52d478f524d20f
Original-Reviewed-on: https://chromium-review.googlesource.com/194737
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Original-Commit-Queue: Hung-Te Lin <hungte@chromium.org>
Original-Tested-by: Hung-Te Lin <hungte@chromium.org>
(cherry picked from commit ef3208d8ff3c3dcfaeda9c0146bf1ae920682dea)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Ide1cd28ecc0ae1cd4d8603a52975592daee4bce8
Reviewed-on: http://review.coreboot.org/7766
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
Correct SOR attaching sequence.
https://chromium-review.googlesource.com/190300
BRANCH=none
BUG=chrome-os-partner:27413
TEST=build nyan and nyan_big. nyan display works fine.
nyan_big display still doesn't work until all related
patches are built in. (CL:194737 and CL:194739)
Original-Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Change-Id: I8aaf65db90e5e45bd9097c9d38b231bd7d41d997
Original-Reviewed-on: https://chromium-review.googlesource.com/194403
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Original-Commit-Queue: Hung-Te Lin <hungte@chromium.org>
Original-Tested-by: Hung-Te Lin <hungte@chromium.org>
(cherry picked from commit fea9d288b98dcc6fc32dc93212fa7c4185603646)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I6646816809e29c63de65caa7e7146cd3d02902cf
Reviewed-on: http://review.coreboot.org/7765
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
Tegra124 family products may want to use many different display panels with
various timing settings. To support them, we should initialize display panel by
EDID instead of hard-coded values.
BUG=none
TEST=emerge-nyan coreboot chromeos-bootimage
BRANCH=none
Original-Change-Id: Ib125a7f9cb1e6c8cf2d79e0baab525acfd1b7a6e
Original-Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/192730
Original-Reviewed-by: Tom Warren <twarren@nvidia.com>
Original-Reviewed-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Reviewed-by: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit 43ecd473419aa0fbdd22487416b0b6cfea6a20d1)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I6af47db113035e9440e663a769318776c7b6b70b
Reviewed-on: http://review.coreboot.org/7764
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
There is no need to call cbmemc_reinit() exclusively in romstage,
that is done as part of the CAR migration of cbmem_recovery().
CBMEM console for romstage remains disabled for boards flagged with
BROKEN_CAR_MIGRATE, but with this change it is possible to have it for
ramstage.
Change-Id: I48c4afcd847d0d5f8864d23c0786935341e3f752
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7592
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <gaumless@gmail.com>
Flag the boards with BROKEN_CAR_MIGRATE, as testing for EARLY_CBMEM_INIT
is not enough to disable CBMEM console for romstage on these platforms.
To have CBMEM early in ramstage, define get_top_of_ram() on sandy/ivy.
Change-Id: Ieefc12099a0e043eb1a7e14bdc7c6e3d209b3d8f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7468
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Martin Roth <gaumless@gmail.com>
The new API is in use in depthcharge and is based around the "i2c_transfer"
function instead of i2c_read and i2c_write. The new function takes an array of
i2c_seg structures which represent each portion of the transfer after a start
bit and before the stop bit. If there's more than one segment, they're
seperated by repeated starts.
Some wrapper functions have also been added which make certain common
operations easy. These include reading or writing a byte from a register or
reading or writing a blob of raw data. The i2c device drivers generally use
these wrappers but can call the i2c_transfer function directly if the need
something different.
The tegra i2c driver was very similar to the one in depthcharge and was simple
to convert. The Exynos 5250 and 5420 drivers were ported from depthcharge and
replace the ones in coreboot. The Exynos 5420 driver was ported from the high
speed portion of the one in coreboot and was straightforward to port back. The
low speed portion and the Exynos 5250 drivers had been transplanted from U-Boot
and were replaced with the depthcharge implementation.
BUG=None
TEST=Built and booted on nyan with and without EFS. Built and booted on, pit
and daisy.
BRANCH=None
Original-Change-Id: I1e98c3fa2560be25444ab3d0394bb214b9d56e93
Original-Signed-off-by: Gabe Black <gabeblack@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/193561
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Tested-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Original-Commit-Queue: Gabe Black <gabeblack@chromium.org>
Original-Tested-by: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit 00c423fb2c06c69d580ee3ec0a3892ebf164a5fe)
This cherry-pick required additional changes to the following:
src/cpu/allwinner/a10/twi.c
src/drivers/xpowers/axp209/axp209.c
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I691959c66308eeeec219b1bec463b8b365a246d7
Reviewed-on: http://review.coreboot.org/7751
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
According to DP version 1.2a, The MOT (Middle-of-Transaction) bit
must be set when the I2C transaction does not stop with the current
AUX transaction.
Thus the correct steps for an I2C read shall be:
1. I2C command write with MOT set to 1
2. I2C command read to the same address with MOT set to 0
BUG=chrome-os-partner:27679
TEST=EDID data read from LP140WH8 panel is correct while it's a
repeated pattern of the first 16 bytes without this CL
BRANCH=none
Original-Change-Id: I0526beffb8852fbbe0eb5bb80e370261617a59b8
Original-Signed-off-by: Ken Chang <kenc@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/194915
Original-Reviewed-by: Tom Warren <twarren@nvidia.com>
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
(cherry picked from commit 466ab0e00744f79ae3720474140d95e5f0828de9)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Ic8ad38b4b08989dd7178d59151e1e276b8a58439
Reviewed-on: http://review.coreboot.org/7763
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
PLLD, the clock for display, was previously hard-coded to 306MHz. To support
more different panels, we should calcualte PLLD by panel pixel clock
configuration.
Note existing pixel clock configurations for nyan* boards won't work (they used
to rely on hard-coded approximated values) so the device trees are also
modified.
BRANCH=none
BUG=chrome-os-partner:25933
TEST=emerge-nyan_big coreboot chromeos-bootimage
See panel correctly initialized and got DEV screen.
Original-Change-Id: I8d592f0cc044e7c4e4803c45955642e791210ad3
Original-Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/193565
(cherry picked from commit 4f9b793633ebb2d104b0544e3b72fa0d105951c4)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Ib2cabbad60af010e872505e888eab485ba8c2916
Reviewed-on: http://review.coreboot.org/7762
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This adds a missing dma_release() at the end of DMA transfers. It
probably doesn't matter since we don't do many DMA transfers, though
I wouldn't want to hit some corner case with EFS and eventlog.
BUG=none
BRANCH=none
TEST=tested on nyan
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Original-Change-Id: I79b30455babe75a13aac827caac88bf7053ec9e4
Original-Reviewed-on: https://chromium-review.googlesource.com/194479
Original-Tested-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-by: Gabe Black <gabeblack@chromium.org>
Original-Commit-Queue: David Hendricks <dhendrix@chromium.org>
(cherry picked from commit dc7dc1d25bd88873b4c1198a6f3723d27c914ddc)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I8c5da4e104328fd8bce71942e6eda458a37bfe06
Reviewed-on: http://review.coreboot.org/7761
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
It worked earlier since the APB and AHB bus widths occupy the same bits
in their respective registers.
BUG=none
BRANCH=none
TEST=tested on Nyan
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Original-Change-Id: I9b18c648c60dcc4ad62ca1f514d253f8cccaeee7
Original-Reviewed-on: https://chromium-review.googlesource.com/194478
Original-Tested-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-by: Gabe Black <gabeblack@chromium.org>
Original-Commit-Queue: David Hendricks <dhendrix@chromium.org>
(cherry picked from commit 1d912302e9dcc9c6ba69e15434bb1841e1196208)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I2ea7ac83d3501876df52018aed467ec33074817e
Reviewed-on: http://review.coreboot.org/7760
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This change takes about 8K of space away from the cbfs cache and repurposes
it for the cbmem console buffer. This is a little more than twice the space
we currently need for the bootblock and ROM stage to give us some room to grow
and for extra debug output if needed.
BUG=None
TEST=Built and booted on nyan. Checked the cbmem output.
BRANCH=None
Original-Change-Id: I6543bf5efddcf2377528a273f846b8090cd8be55
Original-Signed-off-by: Gabe Black <gabeblack@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/193169
Original-Reviewed-by: Gabe Black <gabeblack@chromium.org>
Original-Commit-Queue: Gabe Black <gabeblack@chromium.org>
Original-Tested-by: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit 32e9ea6f9ecaa9b5441c91acab96514222f3af2c)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Ia9e5cc7a4b561bd89137cdc8b594584b272d9fab
Reviewed-on: http://review.coreboot.org/7757
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Consolidate the register setting clrsetbits_le32 call to simplify the macros.
Add a check for bits of the divisor being dropped. The clock source registers
will throw away bits that aren't supported, so we can check for divisor
overflow by checking for dropped bits.
BUG=None
TEST=Purposefully tried to set a clock to a rate which overflows its divisor.
Verified that the check triggered. Booted on nyan. Verified the TPM i2c bus
frequency was still correct.
BRANCH=None
Original-Change-Id: I3b1b6ba57f6b7729f303d15a16b685a48751d41f
Original-Signed-off-by: Gabe Black <gabeblack@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/193348
Original-Reviewed-by: Gabe Black <gabeblack@chromium.org>
Original-Commit-Queue: Gabe Black <gabeblack@chromium.org>
Original-Tested-by: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit 9cd79dd974d8a3c31398f8fbd62750b194867891)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Id4d8ecfeff52737cdd68999028b37cbdedb0d116
Reviewed-on: http://review.coreboot.org/7738
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
To ensure that the command1 write which sets the "go" bit completes before
other reads to the device. Otherwise, there's a race condition where those
register values might still have their values from the last transfer. With
different SPI clock frequencies, that could lead to spi_delay being told there
were negative bytes still to send. Its expected delay would wrap to a negative
value, that was passed to udelay, and the system would sit there for 4 seconds
not doing anything.
BUG=None
TEST=Built and booted on nyan. Set the SPI bus frequency to a value which was
causing the 4+ second delay and verified that it no longer happened.
BRANCH=None
Original-Change-Id: I8b4090efc69f34d0413e3f63c59c1825dd151cec
Original-Signed-off-by: Gabe Black <gabeblack@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/193347
Original-Reviewed-by: Gabe Black <gabeblack@chromium.org>
Original-Commit-Queue: Gabe Black <gabeblack@chromium.org>
Original-Tested-by: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit d7ea9febdf2c5942f81607ee6ded786c9a8954bb)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I095bfc745eda37b8e666475ceb41684152f3709a
Reviewed-on: http://review.coreboot.org/7737
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
