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The raw CPUID is useful for matching the directories under 'src/cpu/intel'
and is not easy to find out otherwise because it is most often decoded
already. The decoded values are not obviously hexadecimal so prepend
them with 0x to make sure they are unambiguous.
The output differences look like this:
- CPU: Processor Type: 0, Family 6, Model 25, Stepping 2
+ CPU: ID 0x20652, Processor Type 0x0, Family 0x6, Model 0x25, Stepping 0x2
Change-Id: Id47f0b00f8db931f0000451c8f63ac1e966442c4
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/3788
Reviewed-by: Stefan Tauner <stefan.tauner@gmx.at>
Tested-by: build bot (Jenkins)
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* GCC 4.8.1
* binutils 2.23.2
* GDB 7.6
* ACPICA 20130626
* Python 3.3.2
... this adds support for Aarch64. For Ron.
Change-Id: Idec91bcd615bc35c83373bd23d4681f1c8eb015c
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/3758
Tested-by: build bot (Jenkins)
Reviewed-by: David Hubbard <david.c.hubbard+coreboot@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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The code to figure out how to set num_starts was
starting to get kludgy. It's a constant for a given
CPU; constants should be constant; make it a config variable.
This change includes an example of how to override it.
Build but not boot tested; drivers welcome.
Change-Id: Iddd906a707bb16251615c7b42f2bfb5a044379b4
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/3796
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
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This is the first of a series of patches to provide support
for a new mainboard, Gigabyte GA-B75M-D3V.
This patch provides early serial for the superio and has been
tested on this mainboard. The code is based on IT8718F superio.
Change-Id: I5636199b49314166ed3b81e60b41131964dd44ff
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: http://review.coreboot.org/3794
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
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Change-Id: I87de13a7284bc38ac7cf2b18a147323c84a9a5c5
Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3780
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Change-Id: If1fa39db79eeecbef90c8695143d2fe2adf2f21a
Signed-off-by: Peter Stuge <peter@stuge.se>
Reviewed-on: http://review.coreboot.org/3732
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
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This reverts commit cd24e3f6a7adecfc9d3b2a2dd2f81d84acffa91b.
Change-Id: I3d1fec75d99d0b480a47b4d433c14a681831d9f8
Signed-off-by: Peter Stuge <peter@stuge.se>
Reviewed-on: http://review.coreboot.org/3778
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
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The Linux thinkpad_acpi.c driver looks for this string while
reading information about the system it is running on.
This commit does not make the module load but it is one of
several things that the module looks for on a ThinkPad.
The use of 3 defines for the serial number template
seems odd but it's done in a way that eliminates
magic numbers, yet avoids use of strcpy, strlen,
strindex, strchr, or strspan: we can have some
correctness assured at compile time. Also, the
defines can be copy/pasted for other mainboards
and we should void errors due to people not changing
magic numbers.
Change-Id: Ief5f28d2e27bf959cb579c4c8eea9eecc9a89a7c
Signed-off-by: Peter Stuge <peter@stuge.se>
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/3620
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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CBFS_ROM_OFFSET was declared in both the am335x config and the beaglebone
config. This removes it from the beaglebone config.
Change-Id: I657cb8e83a1ee961d8bdc995a41f303920bc53f9
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3771
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
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Split the Parmer, Family 15tn, and Hudson DSDT into groups. This splits
the DSDT table into includable ASL files which carry details specific
to the Family 15tn APU, the Parmer platform, and the Hudson FCH. The
dsdt.asl file in the mainboard directory contains only #include
references to the appropriate files.
Initially, this split was done by moving each piece of functionality
into its own file (e.g. IRQ routing and mapping, processor tree, sleep
states and sleep methods, etc.) and those pieces were #included in
dsdt.asl to ensure an exact match (via acpidump/acpixtract/iasl -d)
with the extant version of the table. Once the new tables were found
to exactly match the existing tables, the pieces were rearranged into
reasonable groups (e.g. fch.asl, northbridge.asl, pci_int.asl, etc.).
Some include files have no content but are left as a template for
other platforms and as placeholders for completing the ACPI
implementation for Parmer (e.g. thermal.asl, superio.asl, ide.asl,
sata.asl, etc.).
Change-Id: I098b0c5ca27629da9bc1cff1e6ba9fa6703e2710
Signed-off-by: Steve Goodrich <steve.goodrich@se-eng.com>
Reviewed-on: http://review.coreboot.org/3629
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
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It might be the case that a file is being loaded from a portion of CBFS which
has already been loaded into a limitted bit of memory somewhere, and we want
to load that file in place, effectively, so that it's original location in
CBFS overlaps with its new location. That's only guaranteed to work if you use
memmove instead of memcpy.
Change-Id: Id550138c875907749fff05f330fcd2fb5f9ed924
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3577
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The SOC's built in ROM loads the bootblock and the ROM stage into the on chip
memory before handing over control to the bootblock. To avoid having to add
one or more driver to the bootblock so that it can re-load the ROM stage from
whatever media Coreboot is stored on, we can just take advantage of the copy
that's already there. Loading the RAM stage/payloads won't be so simple,
so the ROM stage and the RAM stage will have to have different media drivers.
Change-Id: Id74ed4bc3afd2063277a36e666080522af2305dd
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3583
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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This variable wasn't being defined and was defaulting to zero when used in the
ROM stage's linker script. This change defines it as a variable, and gives it
a value which is slightly beyond the end of the bootblock. By making the ROM
stage request to be loaded slightly farther into memory than it was loaded by
the SOC's masked ROM, we ensure that it's moved away from the stage's metadata
instead of on top of it. When it moves the other way, it clobbers important
values like the entry point vefore the bootblock has had a chance to use them.
Change-Id: I027a1365d05f1d79d7fc1e1349965ccb7d4e81b9
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3582
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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The placeholder code in beaglebone's romstage.c didn't do anything, it just
immediately tried to load the RAM stage and jump into it. That doesn't
currently work, and there's no indication whether you actually successfully
got into the ROM stage or not.
This change adds a few lines which initialize the console and say "Hi" so that
we can tell that the ROM stage is running.
Change-Id: I45a0908c3ac65b21e0e5020428696d2e54933d0e
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3581
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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At least when building with the gnu toolchain, the headers the linker
automatically generate save space for the actual ELF headers in one of the
loadable segments. This creates two problems. First, the data you intended to
be at the start of the image doesn't actually show up there, it's actually the
ELF headers. Second, the ELF headers are essentially useless for firmware
since there's currently nothing to tell you where they are, and even if there
was, there isn't much of a reason to look at them. They're useful in userspace
for, for instance, the dynamic linker, but not really in firmware.
This change adds a PHDRS construct to each of the linker scripts used on ARM
which define a single segment called to_load which does not have the flag set
which would tell the linker to put headers in it. The first section defined in
the script has ": to_load" to tell the linker which segment to put it in, and
from that point on the other sections go in there by default.
Change-Id: I24b721eb436d17afd234002ae82f9166d2fcf65d
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3580
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Change-Id: Id338968429435bac26595c4843b07cdbb91dd64d
Signed-off-by: Peter Stuge <peter@stuge.se>
Reviewed-on: http://review.coreboot.org/3618
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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The vendor and part name from coreboot is normally stored in these
SMBIOS structure fields, but it can be useful to override them.
On Lenovo ThinkPads an override is e.g. needed to convince the Linux
thinkpad_acpi.c driver that it is actually running on a ThinkPad.
Change-Id: I0dfe38b9f6f99b3376f1547412ecc97c2f7aff2b
Signed-off-by: Peter Stuge <peter@stuge.se>
Reviewed-on: http://review.coreboot.org/1556
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
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This is needed for the Linux thinkpad_acpi.c driver to load.
Change-Id: I3d9549395556ffb0abfc3cb52b3d01386c34caa5
Signed-off-by: Peter Stuge <peter@stuge.se>
Reviewed-on: http://review.coreboot.org/3731
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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This version is taken from arch/arm/lib/memmove.S in the Linux kernel.
Change-Id: Ic875d0cf5b1cb407606530b7f465c406b134f0fa
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3763
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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This is from memcpy_32.c in the Linux kernel. There was no copyright header
in the original file either.
Change-Id: Ifd259cb8a87615dce79ed1e551cc4bacb0414b4f
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3762
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Change-Id: I4b6a57e7d8e7e685c609b1d85368585b9dd197dc
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3761
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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mainboard_enable() is now modelled after google/parrot where the
enable function only sets dev->ops->init for the root device to
point to a mainboard_init() function, which in turn is called in a
later pass over the device tree to do the actual initialization.
Change-Id: Iaf9187532a1e432b991260201b95dda85cc312c5
Signed-off-by: Peter Stuge <peter@stuge.se>
Reviewed-on: http://review.coreboot.org/3619
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Change-Id: Ic6f6af6298fed2f41f140a7aa62dccf98bf60927
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/3572
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Change-Id: I69c46648de0689e9bed84c7726906024ad65e769
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/3729
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Change-Id: Iadc813bc8208278996b2b1aa20cfb156ec06fac9
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/3755
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Change-Id: I9cad64796fcfb7a50d9ed9ec95c56ab855c872e3
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3766
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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Change-Id: I4786bff41fef924c72087c354e394bdc1996cadc
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3764
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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The options that keep track of whether there are arch versions of the standard
string functions shouldn't be in the arch/x86 directory since they apply to
all architectures. Move them into the higher level, shared Kconfig defaulting
to off. Then, in each applicable arch (currently all of them) they can be
selected to on.
Change-Id: I7ea64a583230fdc28773f17fd7cc23e0f0a5f3d6
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3760
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Some kernel assembly code uses a W macro to optionally add a .w to
instructions that need to be 32 bit thumb. The gnu assembler doesn't seem to
need the .w and won't assemble if it's provided.
Change-Id: I0a288177788b5c61810ee7bd3d2debea66835de2
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3759
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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With EARLY_CBMEM_INIT and CAR_MIGRATION selected, cbmemc_reinit()
was called twice during romstage. This effectively deleted output
of romstage in CBMEM console.
Change-Id: I21072a319c0e4a5f695b0573bc017bf7921fc663
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3609
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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Split PCI IO configuration and MMIO configuration cycles to separate
files. Modern hardware does not use IO cycles for PCI configuration
after initial setup in bootblock.
Note that the pci_mmio_ and pcie_ functions were different in masking
the alignment for register address. PCI standard requires that 16-bit
and 32-bit configuration register writes do not cross boundaries.
Change-Id: Ie6441283e1a033b4b395e972c18c31277f973897
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3554
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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PCI bus operations are static through the ramstage, and should be
initialized from the very beginning. For all the replaced instances,
there is no MMCONF_SUPPORT nor MMCONF_SUPPORT_DEFAULT selected for
the northbridge, so these continue to use PCI IO config access.
Change-Id: I658abd4a02aa70ad4c9273568eb5560c6e572fb1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3607
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Routes IRQs for USB device, SPI1, MOTOR, HD audio, CAN bus.
Change-Id: I995a5c6d3ed6a7dca4f0d21545c928132ccbbc21
Signed-off-by: Andrew Wu <arw@dmp.com.tw>
Reviewed-on: http://review.coreboot.org/3725
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Store EHCI Debug Port runtime variables in CAR_GLOBAL.
For platforms without CAR_MIGRATION, logging on EHCI Debug Port is
temporarily lost when CAR is torn down at end of romstage.
On model_2065x and model_206ax ehci_debug_info was overlapping the MRC
variable region and additionally migration used incorrect size for
the structure.
Change-Id: I5e6c613b8a4b1dda43d5b69bd437753108760fca
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3475
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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There are other uses for EHCI debug port besides console, so move
EHCI relocation code from console to lib.
Change-Id: I95cddd31be529351d9ec68f14782cc3cbe08c617
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3626
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Move ehci_debug_info allocation from console to lib, as console code
was only built for ramstage.
Implement dbgp_ehci_info() to return the EHCI context. Alread alias this
as dbgp_console_input() and _output() to return the console stream context
later on.
Change-Id: Id6cc07d62953f0466df61eeb159e22b0e3287d4e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3625
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Output to usbdebug console needs to be disabled until hardware is
initialized and while EHCI BAR is relocated. Add separate field
ehci_info to point to back to EHCI context when hardware is ready
to transfer data.
Change-Id: If7d441b561819ab8ae23ed9f3f320f7742ed231e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3624
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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The display port bridge on pit is different from the one on snow and needs to
be initialized differently. Instead of waiting for the chip to come up on its
own and assert the hotplug detect, we need to access it over i2c and get it up
and running ourselves.
Change-Id: I4bc911cb8e4463edff7beabd2f356cb70ae9f507
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3723
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Change-Id: Id1277ceefc844a052627483e6c9d01bcb5da975f
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3722
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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This driver is basically the same as the one in U-Boot but without the device
tree stuff. That driver is, in turn, a straightforward implementation of the
sequence of register writes described in the data sheet. Comments were added
in U-Boot which helpfully describe what the register writes are actually
doing and are kept.
Change-Id: I64ba6b373478853bb2120f0553a43de901170d02
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: http://review.coreboot.org/3753
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Data is intended to be a byte array, so it should be described by a type which
has a fixed size equal to an 8 bit byte. Also, the data passed to write
shouldn't be modified and can be const.
Change-Id: I6466303d962998f6c37c2d4006a39c2d79a235c1
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3721
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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This was removed from ramstage a little while ago and should have been removed
from here as well.
Change-Id: I6a40ed4a98bedac39e5492e4b1aed3427ab4e08b
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3720
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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This appears to be needed, though we have no way to test yet.
Change-Id: I39033581011e056258193f2cdff78814361a8d55
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3719
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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In resume path, if memory setup takes too long without setting PS_HOLD, EC watch
dog may power off or reboot the system. To prevent that, we should enable
PS_HOLD in same timing as cold boot - right before starting memory setup.
Change-Id: I5c294fa7ae015f8cff57b1fd81e5b80902647b15
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3718
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The functions which manipulated the tps65090 were removed a while ago because
it isn't accessible directly from the AP, it's on an I2C bus that has to be
accessed by the EC on our behalf. Now that that capability has been added, we
can rewrite the small portion of the the tps65090 we actually used but using
the EC passthrough commands.
Also, we should not be configuring the hardware display port hotplug detect
line since we're using it as a GPIO for other purposes. The GPIO we're using
instead defaults to being an input, but to be safe we should probably
explicitly configure it as one anyway.
Change-Id: I7f8a8a767e3cccb813513940a5feceea482982f5
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3717
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Change-Id: I576d0dbf65693f40d7d1c20d3d5e7a75b8e14dc9
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: http://review.coreboot.org/3752
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The ChromeOS EC for peach_pit is connected to SPI2 bus, not I2C.
Change-Id: Ifeb8a626aa4fc3d3a181a7bc016e3f91be948ae5
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3716
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The workaround of re-opening device in exynos_spi_read has been fixed by the new
correct open/close and xfer procedure. It's safe to be removed now.
Change-Id: I6b1bf717c916903999a137998a578b0a866829bd
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3715
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Switch spi_xfer and exynos_spi_read to use the new spi_rx_tx function.
Change-Id: I01ab43509df1319672bec30dd111f98001d655d0
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3714
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The SPI driver (exynos_spi_rx_tx) was implemented with only "read" ability and
only full-duplex mode. To communicate with devices like ChromeOS EC, we need
both output (tx) and half-duplex (searching frame header) features.
This commit adds a spi_rx_tx that can handle all cases we need.
Change-Id: I6aba3839eb0711d49c143dc0620245c0dfe782d8
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3713
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The original Exynos SPI open/close procedure was copied from U-Boot SPL with
some assumptions that only works in SPL stage. For example, it tries to always
work in 4-byte transmission mode with only RX data is swapped, and claims a
packet for initial address command (and with incorrect size).
This commit revises open/close and reset so only the required SPI registers are
configured.
Change-Id: Ieba1f03d80a8949c39a6658218831ded39853744
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3712
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Fill the SPI device parameters for spi_setup_slave on Exynos 5420.
Change-Id: I10b4b9e6cfe46d7bfa34e80e3727c7e7da99ba9d
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3711
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The SPI module in Exynos 5420 didn't follow Coreboot's SPI API standard
(spi-generic.h) and will be a problem when we want to share SPI drivers.
This commit replaces exynos_spi_* by spi_* functions.
Note, exynos_spi_read is kept and changed to a static function because its usage
is different from the standard API "spi_xfer".
Change-Id: I6de301bc6b46a09f87b0336c60247fedbe844ca3
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3710
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Remove unused header and constant definition in SPI module.
Change-Id: I339e603f48186e4a356e83518b0d0b4c907f11b8
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3709
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Add SPI0 and SPI2 to Exynos 5 SPI list, and correct structure names.
Also removed the un-enumerated devices (SPI_BASE, base_spi()).
Change-Id: Ica6d9a41f9619c8c61eab664d5e988dd4a428e09
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3708
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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For devices with ChromeOS EC on SPI bus, use the standard SPI driver interface
(see spi-generic.h) to exchange data.
Note: Only EC protocol v3 is supported for SPI bus.
Change-Id: Ia8dcdecd125a2bd7424d0c7560e046b6d6988a03
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3751
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Add the new Chrome EC protocol version 3 to Coreboot.
Note, protocol version 3 is not applied on any bus implementations yet.
LPC (x86) and I2C (arm/snow) are still using v2 protocol. The first one to use
v3 protocol will be SPI bus (arm/pit). LPC / I2C will be updated to v3 only
when they are ready to change.
Change-Id: I3006435295fb509c6351afbb97de0fcedcb1d8c4
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3750
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Since EC protocol v3, the packet format will be the same for all buses (inclding
I2C, SPI, and LPC). That will simplify the implementation in each individual bus
driver source file.
To prepare for that, we will move the protocol part into crosec_proto.c:
crosec_command_proto, with bus driver in callback "crosec_io".
Change-Id: I9ccd19a57a182899dd1ef1cd90598679c1546295
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3749
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The Embedded Controller (EC) for Pit is connected via SPI2, and needs to be
configured before we can talk to it.
Change-Id: I1f8e921b4616f15951f3e5fae1ecbf116de4ba90
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3707
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Some initialization / shutdown commands should be paired correctly in a SPI I/O
session. For example, setting CS should be enabled and disabled in each read;
and the bus width (byte or word) should be configured only when opening /
closing the SPI device.
Change-Id: Ie56b1c3a6df7d542f7ea8f1193ac435987f937ba
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3706
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Change-Id: Ie347b32575c26133d52c275622d29d1cd4c6c0c7
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3623
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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Change-Id: I4feabc448945c4664d3114c0c8afdad48338230a
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3705
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The functions which checked the status of a transfer would return success if
the bus was no longer occupied, even if it's no longer occupied because the
transfer failed. This change modifies those functions to return three possible
values, 0 if the transfer isn't done, -1 if there was a fault, and 1 if the
transaction completed successfully.
Change-Id: Idcc5fdf73cab3c3ece0e96f14113a216db289e05
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3704
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The exynos manual suggests hooking the mmc ip blocks to the mpll. They had
been set to use a different pll. This changes them over and modifies the
divider so that the frequency stays the same.
Change-Id: I85103388d6cc2c63d1ca004654fc08fcc8929962
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3703
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Change-Id: I2dc4caa370473dd86fee2b5cc8b1b9eb154b970e
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3702
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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This allows us to set different speeds for each HSI2C bus.
Change-Id: I50cc257aad9ef50025d0837b0516940b956efc02
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3701
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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This change adjusts some clock settings so that they match U-Boot. There are
three different changes.
1. Change the source for psgen from the oscillator clock to the pclk.
2. Change the pll feeding the SPI busses from epll to mpll, as suggested in
the manual.
3. Change the SPI prescaller.
Change-Id: Ib54a255bc14fc286629dac86db9b8cf8e75a610b
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3700
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The clock divider was being read from registers incorrectly which meant that
the periph rate was wrong.
Change-Id: I50efb62849ef29bdfb0efc56c49642d3edca094c
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3699
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Wait for UART FIFO to be ready.
(Credit to dhendrix for finding the bits to test with.)
Change-Id: Ib6733e422cbc1c61b942bd90d85f88a3f412d6ff
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3698
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Chrome EC protocol V3 has several new command structure and constants defined.
Simply cherry-picking changes from upstream.
Change-Id: I7cb61d3b632ff32743e4fa312e0cc691c1c4c663
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3748
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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... this is needed for libpayload to talk to USB devices.
(forward ported from https://gerrit.chromium.org/gerrit/#/c/55554)
Change-Id: I5a20864689efd0c0149775e6d85b658e0cc6715c
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3697
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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... this is needed for libpayload to talk to USB devices.
Change-Id: I7eb19003c9e96efb5fa7a3f97c7b15f3ef332687
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3696
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Change-Id: I5cddffc2e524aae7a31a8f94f67e03a5b7e15c82
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3695
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Otherwise we have to worry about hand off between bootblock and
romstage. Too much complexity
Change-Id: I89bf8a229dba7e1330accadf9a732d831ebc4827
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3694
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Found during a perusal of u-boot changes. It looks important.
For more info: http://git.chromium.org/gitweb/?p=chromiumos/third_party/u-boot.git;a=commit;h=56eab63922d2b2380518238ae03e8d69e99af4fe
Change-Id: Ida2fe2a98be008a4bdfe594cf00d01a33b511b4f
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3693
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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This is already called in ARMv7 bootblock_simple.c so we don't
want to do it twice
Change-Id: I80cb41035b8a77787e04f2ea58a1cd372cea97d8
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3692
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Change-Id: I6b28bb95c7decbe3eed33b5b5a029bee48bbe403
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3691
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Currently, the exception handling code on ARM turns on alignment checks as an
easy way to generate an exception for testing purposes. It was leaving it on
which disabled unaligned accesses for other, unlreated code running later.
This change adjusts the code so the original value of the alignment bit is
restored after the test exception.
Change-Id: Id8d035a05175f9fb13de547ab4aa5496d681d30c
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3690
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The GPIOs used by vboot and setting up the display and backlight were still
the ones for snow. This change updates them so they're correct for pit.
Change-Id: I06ba773da3af249efec723bb90c2e9e8075a777a
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3689
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The MAX_CPUS option is only used on x86 currently, so there's no reason to
have it in the pit config.
Change-Id: I270bbfd3aff781d88304791b1d9735777643caab
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3688
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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That part isn't used on pit.
Change-Id: I48f3a10f7e6eb89b1e9630d2372b6865b4c12a7f
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3687
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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On pit, the tps65090 is connected to the EC and has to be accessed by proxy.
Until we have that implemented, this change removes calls to tps69050 which
will never succeed, and stops compiling in the driver.
Change-Id: I7218f85f9f26623bd13aaaf8ded0638b3b2f874a
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3686
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The members data structures in dmc.h are intended to have a particular size.
Rather than assume that particular types are the right size, we should use
types that are guaranteed to be the right size. Also, since the registers are
at particular offsets as well, the structures should be packed.
Change-Id: I9cc11d7451f92ba3eb85c6be88ecbc62c7a5652d
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3685
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The previous driver was a bit awkward and not entirely correct. This change
primarily replaces the read/write functions with simpler and more robust
(hopefully) version.
Change-Id: I55f0ad8faec2de520e27577bd6dad9c0118d8171
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3684
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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For all other CPUs, we unconditionally include the CPU Kconfig
files in the CPU directory, not in the vendor directory. Do the
same thing for the Exynos CPUs. This allows us to make CPU dependent
changes in the directory of that CPU alone.
Also, drop some unused Kconfig variables from the Exynos Kconfig
files.
Change-Id: I4e4c22a0693988834e619dd33d121bf994ed57e8
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3683
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The dmb should be executed before reading operations, and before/after writing
operations.
Change-Id: I572136a2f9a07eb2c38a112f5deeb2de0c0fd46c
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3682
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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This updates the low-level I2C code to handle the new high-speed
HSI2C/USI inteface. It also outputs a bit more error information
when things go wrong. Also adds some more error prints. Timeouts
really need to be noted.
In hsi2c_wait_for_irq, order the delay so that we do an initial
sleep first to avoid an early-test that was kicking us out of the
test too soon. We got to the test before the hardware was ready
for us. Finally, test clearing the interrupt status register every time
we wait for it on the write. Works.
Change-Id: I69500eedad58ae0c6405164fbeee89b6a4c6ec6c
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3681
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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This updates the setup_power() function to actually set up the PMIC
which is on this board (the MAX77802).
Change-Id: I9c6f21f183dacc0bca71277e681e670834412d78
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3680
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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This adds register offsets and important values for the Maxim
MAX77802 PMIC.
Change-Id: I3724b82bcb235b6684d2b976876f628f1ffbed3f
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/3747
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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We saw a problem on x86 last year in which setting direction, then value,
glitched the output and caused problems. Change this code to set the output,
then the direction.
Change-Id: I3e1e17ffe82ae270eea539530368a58c6cfe0ebe
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3679
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The 5420 clock code still had a data structure in it for the 5250 clock
registers which was used by some of the clock functions. That caused some
clocks to be configured incorrectly, specifically the i2c clock which was
running at about 80KHz instead of about 600KHz as configured by U-Boot.
Also, the registers and bit positions used to set up the SPI bus were not
consistent with U-Boot, and if the bus clock rate were set to 50MHz, a rate
which has historically worked on snow, loading would fail. With these fixes
the clock rate can be set to 50MHz and the device boots as much as is
expected. I haven't yet measured the actual frequency of the bus to verify
that it's now being calculated correctly.
Change-Id: Id53448fcb6d186bddb3f889c84ba267135dfbc00
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3678
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Tested and working. Gets us to ramstage.
Change-Id: Ib9ea4a6c912e8152246aaf4f1f084a4aa1626053
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3677
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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This adds entries for I2C8-10 to giant switch statement in
clock_get_periph_rate(). It also eliminates the I2C peripheral's
usage of clk_bit_info since it's confusing and error-prone.
Change-Id: I30dfc4c9a03fbf16d08e44e074189fb9021edb6d
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3676
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The code has been there for quite a while but was never enabled.
Change-Id: I4ec3dcbb3c03805ac5c75872614e5d394df667cf
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3675
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Change-Id: I5e0ec360597cd95cb6510fb32b04d8931e6a33db
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3674
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The pinmux code for the exynos5250 was all bundled into a single, large
function which contained a switch statement that would set up the pins for
different peripherals within the SOC. There was also a "flags" parameter, the
meaning of which, if any, depended on which peripheral was being set up.
There are several problems with that approach. First, the code is inefficient
in both time and space. The caller knows which peripheral it wants to set up,
but that information is encoded in a constant which has to be unpacked within
the function before any action can be taken. If there were a function per
peripheral, that information would be implicit. Also, the compiler and linker
are forced to include the entire function with all its cases even if most of
them are never called. If each peripheral was a function, the unused ones
could be garbage collected.
Second, it would be possible to try to set up a peripheral which that function
doesn't know about, so there has to be additional error checking/handling. If
each peripheral had a function, the fact that there was a function to call at
all would imply that the call would be understood.
Third, the flags parameter is fairly opaque, usually doesn't do anything, and
sometimes has to have multiple values embedded in it. By having separate
functions, you can have only the parameters you actually want, give them
names that make sense, and pass in values directly.
Fourth, having one giant function pretends to be a generic, portable API, but
in reality, the only way it's useful is to call it with constants which are
specific to a particular implementation of that API. It's highly unlikely that
a bit of code will need to set up a peripheral but have no idea what that
peripheral actually is.
Call sights for the prior pinmux API have been updated. Also, pinmux
initialization within the i2c driver was moved to be in the board setup code
where it really probably belongs. The function block that implements the I2C
controller may be shared between multiple SOCs (and in fact is), and those
SOCs may have different pinmuxes (which they do).
Other places this same sort of change can be made are the pinmux code for the
5420, and the clock configuration code for both the 5250 and the 5420.
Change-Id: Ie9133a895e0dd861cb06a6d5f995b8770b6dc8cf
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3673
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The memset and memcpy functions are assembled as ARM code, likely because
that's the default of the assembler. Without special annotation, the assembler
and linker don't know that those symbols are functions which need special
handling so that ARM/thumb issues are handled properly. This change adds that
annotation which gets those functions working in Coreboot which is compiled as
thumb. Libpayload and depthcharge are compiled as ARM so they don't *need* the
annotation since it just works out in ARM mode, but it's the safe thing to do
in case we change that in the future.
We should explicitly select ARM vs. thumb when assembling assembly files to be
consistent across builds and toolchains.
Change-Id: I814b137064cf46ae9e2744ff6c223b695dc1ef01
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3672
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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It might be that you want an early console in romstage before RAM is up, but
you can't or don't want to support the console all the way back in the
bootblock. By making the console in those two different environments
configurable seperately that becomes possible.
On the 5250 console output as early as the bootblock works, but on the 5420 it
only starts working in the ROM stage after clocks have been initialized.
Change-Id: I68ae3fcb4d828fa8a328a30001c23c81a4423bb8
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3671
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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There are hundreds of GPIOs on the Exynos5420. Don't
always print all of them per default.
Change-Id: I2152ab760e31a335dbcd9d6ad32cd1eaae4b89bc
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3670
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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remove some unused code
Change-Id: I41602fb391c1910c588a4f9dcc7c2edefe8ab5bc
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3669
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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