264 Commits

Author SHA1 Message Date
Kyösti Mälkki
8101aa6bb0 usbdebug: Support choice of EHCI controller
Nowadays, chipsets or boards do not only have one USB port with the
capabilities of a debug port but several ones. Some of these ports are
easier accessible than others, so making them configurable is also necessary.
This change adds infrastructure to switch between EHCI controllers,
but does not implement it for any chipset.

Change-Id: I079643870104fbc64091a54e1bfd56ad24422c9f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3438
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-08-29 18:36:20 +02:00
Kyösti Mälkki
2410010018 usbdebug: Change debug port scanning
On AMD platforms, setting of USBDEBUG_DEFAULT_PORT=0 tries to scan
all physical ports one after other in incrementing order. To avoid
possible problems with other USB devices, one can select the port
number here and bypass the scan.

Intel platforms can communicate with usbdebug dongle on one
physical port only, and this option makes no difference there.

Change-Id: I45be6cc3aa91b74650eda2d444c9fcad39d58897
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3872
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-08-29 18:35:47 +02:00
Kyösti Mälkki
361cd8153d console: Squelch console output from AP CPUs in romstage
Add Kconfig option SQUELCH_EARLY_SMP and have it enabled by
default.

Console drivers have unpredictable results if multiple threads
attempt to share same resources without spinlock. Serial UARTs
have not had huge problems, only distorted output, but those
relying on cache-as-ram (CBMEM and usbdebug) may require this.

Change-Id: I7f406fdea7b6dc6a341c4da2fab56f7b7ff568b4
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3854
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-08-16 05:39:47 +02:00
Kyösti Mälkki
3be80cce29 usbdebug: Add option for verbose logging of connection
Add option to log changes in USB 2.0 EHCI debug port connection.
For romstage move usbdebug as the last initialised console so one
actually can see these messages.

Init order of consoles in ramstage is undetermined and unchanged.

Change-Id: I3aceec8a93064bd952886839569e9f5beb6c5720
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3387
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-08-10 18:45:34 +02:00
Kyösti Mälkki
da940c5835 Make EARLY_CONSOLE optional
This change brings back the possibility to disable console
output while in romstage, like before commit d2f45c65.

For some platforms (AMD multi-socket) USBDEBUG and/or CBMEM
CONSOLE do not work correctly for romstage due the way
cache-as-ram is set up, but might already work for ramstage.

Change-Id: Id8d830e02a18129af419d3b5860866acf315d531
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3846
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-08-07 19:12:48 +02:00
Kyösti Mälkki
41c10cd2d7 usbdebug: Move EHCI BAR relocation code
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>
2013-07-10 23:24:20 +02:00
Kyösti Mälkki
9e7806a788 usbdebug: Move ehci_debug_info allocation
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>
2013-07-10 23:23:55 +02:00
Kyösti Mälkki
4d409b5fc2 usbdebug: Refactor disable logic
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>
2013-07-10 23:22:36 +02:00
Stefan Reinauer
9d9b0dd209 Don't try to use CBMEM console in bootblock
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>
2013-07-10 22:44:42 +02:00
Stefan Reinauer
d2f45c6516 Simplify early / bootblock console code
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>
2013-07-10 22:43:56 +02:00
Gabe Black
fbb11cf979 ARM: Separate the early console (romstage) from the bootblock console.
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>
2013-07-10 21:47:52 +02:00
Martin Roth
50d887d4f4 console: Fix spelling
Change-Id: I1fef27c4a16ee4358ace8014a8d6e9fa92c4f790
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/3728
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 20:16:50 +02:00
Kyösti Mälkki
fb387dfb92 usbdebug: Drop duplicates of EHCI BAR relocation code
All the additional work that needs to be done in EHCI BAR relocation
is independent of the hardware platform and was functionally identical
in all the copies removed.

When USBDEBUG is not selected, PCI EHCI controllers use standard
pci_dev_read_resources() call.

With USBDEBUG selected, PCI EHCI controller's device_operations
.read_resources is replaced with pci_ehci_read_resources() call,
which in turn will replace the device_operations .set_resources call.
The replacement for .set_resources reconfigures usbdebug driver side,
and calls the original .set_resources to configure hardware side.

Change-Id: I8e136a5da4efedf60b6dd7068c0488153efaaf8e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3412
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2013-07-01 17:10:55 +02:00
Kyösti Mälkki
ecbc0c5cb9 usbdebug: Fix use without EARLY_CONSOLE
If EARLY_CONSOLE is not selected, the PCI function for EHCI
host controller must be configured in ramstage instead.

Change-Id: I20f7569f79484c744bc413450bfa139052f3580f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3383
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-06-07 09:50:12 +02:00
Gerd Hoffmann
4321d60acb console: log qemu debugcon detection result
Change-Id: Ie0507475f33d029d6e8ce59f138e0e7da5156d4f
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-on: http://review.coreboot.org/3339
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-06-05 18:25:34 +02:00
Gerd Hoffmann
22f01e611b console: add qemu debugcon detection
The qemu debugcon port returns 0xe9 on reads in case the device is
present.  Use that for detection and write console output to the
port only in case the device is actually present.

Change-Id: I41aabcf11845d24004e4f795dfd799822fd14646
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-on: http://review.coreboot.org/3338
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-06-05 18:24:08 +02:00
Gerd Hoffmann
d7c6e444ac console: add qemu prefix to debugcon
Change-Id: Ibcc0a94638c022a76cd3c2e3387af6e1ab757ccb
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-on: http://review.coreboot.org/3337
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-06-05 18:22:46 +02:00
Gerd Hoffmann
038aa29dc2 console: add support for QEMU's debugcon
Add support for sending debug output to an I/O port.

It can be used together with QEMU's isa-debugcon driver to log the
coreboot output to a file.  The port is configurable and defaults
to 0x402 which has established as the de facto standard. For example,
SeaBIOS+OVMF [1] use that one too.

[1] http://www.linux-kvm.org/page/OVMF
    Open Virtual Machine Firmware
Change-Id: I0803f7fc70030242f80003e25c9449c37d71975e
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-on: http://review.coreboot.org/3331
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-06-03 17:32:31 +02:00
Ronald G. Minnich
711a6fde0d Get rid of MAXIMUM_CONSOLE_LOGLEVEL; compile all messages into the coreboot binary
This option has never had much if any use. It solved a problem over 10
years ago that resulted from an argument over the value or lack thereof
of including all the debug strings in a coreboot image. The answer is
in: it's a good idea to maintain the capability to print all messages,
for many reasons.

This option is  also misleading people, as in a recent discussion, to
believe that log messges are controlled at build time in a way they are
not. For the record, from this day forward, we can print messages at all
log levels and the default log level is set at boot time, as directed by
DEFAULT_CONSOLE_LOGLEVEL. You can set the default to 0 at build time and
if you are having trouble override it in CMOS and get more messages.

Besides, a quick glance shows it's always set to max (9 in this case) in
the very few cases (1) in which it is set.

Change-Id: I60c4cdaf4dcd318b841a6d6c70546417c5626f21
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/3188
Tested-by: build bot (Jenkins)
2013-05-10 17:33:49 +02:00
Vladimir Serbinenko
45988dab6b spkmodem console
Change-Id: Ie497e4c8da05001ffe67c4a541bd24aa859ac0e2
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/2987
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-18 22:47:59 +02:00
Christian Gmeiner
8b5b764af6 console: Make use of CONFIG_USE_OPTION_TABLE
It makes much more sense to use CONFIG_USE_OPTION_TABLE instead
of CONFIG_HAVE_CMOS_DEFAULT. As we want to read the used
debug_level from our CMOS. This change makes it possible to
change log_debug via nvramtool and make use of the new
value after a reboot/poweroff.

CONFIG_HAVE_CMOS_DEFAULT does have an other meaning

Change-Id: I438dd01a2b4171dba2b73f2001511c71f4317725
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-on: http://review.coreboot.org/2381
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-04-01 20:54:48 +02:00
Aaron Durbin
c15551ab08 dynamic cbmem: fix memconsole and timestamps
There are assumptions that COLLECT_TIMESTAMPS and CONSOLE_CBMEM
rely on EARLY_CBMEM_INIT. This isn't true in the face of
DYNAMIC_CBMEM as it provides the same properties as EARLY_CBMEM_INIT.
Therefore, allow one to select COLLECT_TIMESTAMPS and CONSOLE_CBMEM
when DYNAMIC_CBMEM is selected.  Lastly, don't hard code the cbmem
implementation when COLLECT_TIMESTAMPS is selected.

Change-Id: I053ebb385ad54a90a202da9d70b9d87ecc963656
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2895
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-03-23 19:44:25 +01:00
Stefan Reinauer
43e4a80a92 Fix race condition building console code
On ARMv7 the console code can also be built into
the bootblock. Currently building the ARM targets
on a reasonably fast machine can fail, because
console.bootblock.o is attempted to build before
build.h is created. This patch adds a specific
rule for the bootblock variant of console.c, to
match the other variants so that the race condition
goes away.

Change-Id: I52e4242c66a02f011ef26b854aa50c2606a1f81f
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2873
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-03-21 22:08:05 +01:00
David Hendricks
ae0e8d3613 Eliminate do_div().
This eliminates the use of do_div() in favor of using libgcc
functions.

This was tested by building and booting on Google Snow (ARMv7)
and Qemu (x86). printk()s which use division in vtxprintf() look good.

Change-Id: Icad001d84a3c05bfbf77098f3d644816280b4a4d
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2606
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-03-08 23:14:26 +01:00
Paul Menzel
a46a712610 GPLv2 notice: Unify all files to just use one space in »MA 02110-1301«
In the file `COPYING` in the coreboot repository and upstream [1]
just one space is used.

The following command was used to convert all files.

    $ git grep -l 'MA  02' | xargs sed -i 's/MA  02/MA 02/'

[1] http://www.gnu.org/licenses/gpl-2.0.txt

Change-Id: Ic956dab2820a9e2ccb7841cab66966ba168f305f
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/2490
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
2013-03-01 10:16:08 +01:00
Patrick Georgi
882f7e35ea console: Fix using CMOS for options
Just a tiny mistake, but it made the console driver assume that
CMOS data isn't available.

Change-Id: I4e6f53e9ed59024de7b09333f82f0ce3235ef8f6
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/2323
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Peter Stuge <peter@stuge.se>
2013-02-08 10:00:12 +01:00
Hung-Te Lin
580fa2bf31 console: Only print romstage messages with EARLY_CONSOLE enabled.
Revise console source file dependency (especially for EARLY_CONSOLE) and
interpret printk/console_init according to EARLY_CONSOLE setting (no-ops if
EARLY_CONSOLE is not defined).

Verified to boot on x86/qemu and armv7/snow. Disabling EARLY_CONSOLE correctly
stops romstage messages on x86/qemu (armv7/snow needs more changes to work).

Change-Id: Idbbd3a26bc1135c9d3ae282aad486961fb60e0ea
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/2300
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
2013-02-08 02:02:26 +01:00
Hung-Te Lin
f7fcb2056f console: Always allow setting "EARLY_CONSOLE" configuration.
Early console should always be allowed to be turned on / off (for generating
production and debug versions), and should not be enforced by "select" Kconfig
rule.

A new "DEFAULT_EARLY_CONSOLE" is introduced for devices to select if they
prefer early console output by default.

Verified Kconfig value on qemu/x86 (default y by CACHE_AS_RAM), snow/x86
(default y by EXYNOS5 config), and intel/jarrell (default n).

Change-Id: Ib1cc76d4ec115a302b95e7317224f1a40d1ab035
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/2307
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
2013-02-08 02:01:16 +01:00
Hung-Te Lin
ad173ea70b console: Revise serial console configuration names.
The console drivers (especially serial drivers) in Kconfig were named in
different styles. This change will rename configuration names to a better naming
style.

 - EARLY_CONSOLE:
        Enable output in pre-ram stage. (Renamed from EARLY_SERIAL_CONSOLE
        because it also supports non-serial)

 - CONSOLE_SERIAL:
        Enable serial output console, from one of the serial drivers. (Renamed
        from SERIAL_CONSOLE because other non-serial drivers are named as
        CONSOLE_XXX like CONSOLE_CBMEM)

 - CONSOLE_SERIAL_UART:
	Device-specific UART driver. (Renamed from
	CONSOLE_SERIAL_NONSTANDARD_MEM because it may be not memory-mapped)

 - HAVE_UART_SPECIAL:
        A dependency for CONSOLE_SERIAL_UART.

Verified to boot on x86/qemu and armv7/snow, and still seeing console
messages in romstage for both platforms.

Change-Id: I4bea3c8fea05bbb7d78df6bc22f82414ac66f973
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/2299
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
2013-02-08 01:56:15 +01:00
Hung-Te Lin
5f83f6cb7a armv7: Clean up arm/snow bootblock build process.
Remove duplicated / testing code and share more driver for bootblock, romstage
and ramstage.

The __PRE_RAM__ is now also defined in bootblock build stage, since bootblock is
executed before RAM is initialized.

Change-Id: I4f5469b1545631eee1cf9f2f5df93cbe3a58268b
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/2282
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-07 06:10:09 +01:00
Ronald G. Minnich
79e36d9060 Improve how our printk calls do_div by using constants.
The do_div code has a nice optimization in it when it is called with
constants. The current highly generalized use of it defeats those
optimizations and causes trouble on ARM, resulting in a complex and
buggy code path.

Since we only need to print in bases 8, 10, and 16, do a minor
restructuring of the code so that we call do_div with constants.
If you need base 2, print in base 16 and do it in your head. :-)

This fixes an ongoing problem with ARM, will not harm X86, and will
help PPC should we ever want to support it again.
Plus, I don't have to ever try to understand the div64 assembly and where
it's going wrong :-)

Change-Id: I6a480011916eb0834e05c5bb10909d83330fe797
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/2235
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-01-31 23:18:16 +01:00
Stefan Reinauer
8d05322b68 Fix console.c with serial support disabled
During the ARM port, disabling serial console became broken.
This patch fixes it.

Change-Id: I40460596073918a08c19bb9c991cada341cca940
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2136
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-11 20:03:30 +01:00
David Hendricks
6a503b6a0f make early serial console support more generic
This patch makes pre-RAM serial init more generic, particularly for
platforms which do not necessarily need cache-as-RAM in order to use
the serial console and do not have a standard 8250 serial port.

This adds a Kconfig variable to set romstage-* for very early serial
console init. The current method assumes that cache-as-RAM should
enable this, so to maintain compatibility selecting CACHE_AS_RAM will
also select EARLY_SERIAL_CONSOLE.

The UART code structure needs some rework, but the use of ROMCC,
romstage, and then ramstage makes things complex.

uart.h now includes all .h files for all uarts. All 2 of them.
This is actually a simplifying change.

Change-Id: I089e7af633c227baf3c06c685f005e9d0e4b38ce
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/2086
Tested-by: build bot (Jenkins)
2013-01-04 01:36:27 +01:00
Stefan Reinauer
509f77277c WIP: Add support for non-8250 built-in UARTs
Change-Id: I5b412678bb8993633b3a610315d298cb20c705f3
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2011
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-12-08 06:51:59 +01:00
Stefan Reinauer
c2d5a1651e Disable CMOS_POST and IO_POST on non-PC80 systems
Because they use outb instructions, they are bound to fail
on non-PC80 systems like ARM.

Change-Id: I679ac6c0964c06c369cc90556529bb6f629d56f9
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1974
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: build bot (Jenkins)
2012-12-06 23:57:11 +01:00
David Hendricks
0f5caa26cb Conditionally include mc146818rtc in console.c
get_option() is used to get a config option (debug loglevel) from
CMOS. However, not all machines have CMOS, so define a dummy inline
function that will return an error code so the caller (console_init())
will use the default loglevel.

Change-Id: I6adf371d79164178f40a83f7608289a6a7673357
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/1962
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-12-05 05:26:31 +01:00
Patrick Georgi
23f38cd05c Get rid of drivers class
The use of ramstage.a required the build system to handle some
object files in a special way, which were put in the drivers
class.

These object files didn't provide any symbols that were used
directly (but only via linker magic), and so the linker never
considered them for inclusion.

With ramstage.a gone, we can drop this special class, too.

Change-Id: I6f1369e08d7d12266b506a5597c3a139c5c41a55
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/1872
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-11-27 22:00:49 +01:00
David Hendricks
534c8a013f Conditionally #include mc1468181rtc if CMOS_POST is enabled
This will omit the mc1468181rtc header if it is not needed. Currently
it contains a lot of inlined functions which depend on architecture-
specific IO.

Change-Id: I4ef1bc1362c159e0c780c3eade01af04f029f949
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/1916
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
2012-11-27 02:03:27 +01:00
David Hendricks
6b908d08ab Make POST codes written to IO port optional
This adds more configurability to POST codes. The current assumption
is that POST codes should be written to an IO port (e.g. LPC) if POST
codes are enabled. This changes the assumption so that POST codes can
be written to the serial console without being written to an IO port.

This enables POST codes by default using "default y" to avoid
changing current behavior.

Change-Id: I3db91c358ccb1557096983c4d07f70b2e872c4b3
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/1685
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-11-27 02:03:03 +01:00
Duncan Laurie
1fc3461792 Log unexpected post code from the previous boot
Read out the post code from the previous boot and
log it if the code is not one of the expected values.

Test:
1) interrupt the boot of the system, this is easiest
with warm reset button when servo is attached
2) check the event log with mosys

65 | 2012-09-09 12:32:11 | Last post code in previous boot | 0x9d

Change-Id: Id418f4c0cf005a3e97b8c63de67cb9a09bc57384
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1744
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-11-08 19:40:58 +01:00
Duncan Laurie
b6e97b19ae Add support for storing POST codes in CMOS
This will use 3 bytes of CMOS to keep track of the POST
code for the current boot while also leaving a record of
the previous boot.

The active bank is switched early in the bootblock.

Test:
1) clear cmos
2) reboot
3) use "mosys nvram dump" to verify that the first byte
contains 0x80 and the second byte contains 0xF8
4) powerd_suspend and then resume
5) use "mosys nvram dump" to verify that the first byte
contains 0x81 and the second byte contains 0xFD

Change-Id: I1ee6bb2dac053018f3042ab5a0b26c435dbfd151
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1743
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-11-08 19:40:40 +01:00
Alexandru Gagniuc
f88204e02b Add a capability for mainboard-specific posting.
Some mainboards have really nice capabilities for posting, beyond
simple POST cards. Further, some can not use a POST card. This
change defines a weak symbol (mainboard_post) that can be overridden
by a real mainboard_post function.

If, for example, you'd like to do something fancy before the payload starts,
you can add this to mainboard.c:

void mainboard_post(u8 value)
{
	switch(value){
		case POST_TIME_TO_PARTY: some_fancy_lights();
		break;
	}
}

Maybe the post function should be an entry in the device. We're beginning to over-use
weak symbols.

BUG=None

TEST=Build and boot a google chromebook. Observe that it still works. Use it to drive
some pretty lights.

Change-Id: I3512d2ec34a66c747287191851c3f68b6a7cc1b2
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/1397
Tested-by: build bot (Jenkins)
2012-08-04 19:31:20 +02:00
Sven Schnelle
82704c63b9 USBDEBUG: buffer up to 8 bytes
EHCI debug allows to send message with 8 bytes length, but
we're only sending one byte in each transaction. Buffer up
to 8 bytes to speed up debug output.

Change-Id: I9dbb406833c4966c3afbd610e1b13a8fa3d62f39
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/1357
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.huber@secunet.com>
2012-07-26 15:52:00 +02:00
Duncan Laurie
f5e9ac48c6 SMM: Add support for malloc in SMM if using TSEG
This is used by the SPI driver and ELOG.

It requires SMM TSEG and a _heap/_eheap region defined in the
linker script.  The first time malloc is called in SMM the
start and end pointers to the heap region will be relocated
for the TSEG region.

Enable SPI flash and ELOG in SMM and successfully
allocate memory.  The allocated addresses are verified
to be sure they are within the TSEG heap region:

smm.elf:00014000 B _eheap
smm.elf:00010000 B _heap
TSEG base is 0xad000000

Memory allocated in ELOG:
ELOG: MEM @0xad018030

Change-Id: I5cca38e4888d597cbbfcd9983cd6a7ae3600c2a3
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1312
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-07-24 23:44:19 +02:00
Marc Jones
fa418e3c66 Add uartmem_init prototype.
The oxpcie ramstage code calls uartmem_init after the PCI memory
allocation, but hte function was static and didn't have a prototype.

Change-Id: Iabc1a3d248aeaed29aaaa22504defac97c572326
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-on: http://review.coreboot.org/1285
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2012-07-24 12:17:21 +02:00
Stefan Reinauer
bfff6dea2b Implement %zu / %zd in printk
The SPI drivers from u-boot make heavy use of %zu/%zd (size_t/ssize_t).
Implement this in our printk implementation so we get useful output.

Change-Id: I91798ff4f28b9c3cd4db204c7ec503596d247dcd
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1043
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2012-05-26 07:16:40 +02:00
Stefan Reinauer
3aa067f595 Add support to run SMM handler in TSEG instead of ASEG
Traditionally coreboot's SMM handler runs in ASEG (0xa0000),
"behind" the graphics memory. This approach has two issues:
- It limits the possible size of the SMM handler (and the
  number of CPUs supported in a system)
- It's not considered a supported path anymore in newer CPUs.

Change-Id: I9f2877e46873ab2ea8f1157ead4bc644a50be19e
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Acked-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/842
Reviewed-by: Peter Stuge <peter@stuge.se>
Tested-by: build bot (Jenkins)
2012-04-04 04:49:09 +02:00
Stefan Reinauer
1b632aff26 Fix typos in src/console/Kconfig
- cash -> Cache
- make the new size of the cbmem console buffer the default

Change-Id: Ia906077257e93622ad56bc54a42f8184ade78b29
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/726
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-03-29 22:35:12 +02:00
Vadim Bendebury
3e31600e62 CBMEM CONSOLE: Enable coreboot CBMEM console.
The appropriate Makefiles are modified to include the required
source code in compilation.

Change-Id: I91842b1ba0f89d611d3249b63c020a2713a9124f
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: http://review.coreboot.org/722
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-03-29 20:15:06 +02:00
Vadim Bendebury
1078c67af1 CBMEM CONSOLE: Add code using the new console driver.
The new added code is compiled in when the CBMEM_CONSOLE config
flag is enabled.

Change-Id: Ifd1f492ce6321412a014333babbc5b3f14635988
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: http://review.coreboot.org/721
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-03-29 20:14:52 +02:00