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2013-02-19snow: add cpu_cluster and domain resources via devicetree.cbDavid Hendricks
This patch will cause the resource allocator to actually set aside the memory resources using methods in the previous patch. The coreboot table output will include "RAM" entries (there were none before): coreboot memory table: 0. 0000000040400000-00000000bff001ff: RAM 1. 00000000bff00200-00000000bff00fff: CONFIGURATION TABLES 2. 00000000bff01000-00000000bfffffff: RAM Change-Id: I5cd76e93fc232fdae1754253efb4e9269b3a20c0 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2420 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-18Persimmon: drop useless DDR3 voltage code copied from InaguaJens Rottmann
Inagua can use GPIOs 178,179 to switch VMEM to 1.5, 1.35 or 1.25 V, which it does according to data read from the SO-DIMM's SPD EEPROM. On Persimmon (according to DB-FT1 rev. D schematics) both GPIOs are unconnected, there is no way to change the 1.5 V DDR3 voltage (save unsoldering a resistor). The whole code copied over from Inagua is useless. Removed the code, instead a comment hints at Inagua, for people who do designs based on Persimmon but do have a way to change VMEM. The line ...->DDR3Voltage = VOLT1_5; is supposed to make the AGESA DDR3 code select the RAM timings for the actually supplied voltage instead of the hoped-for but unavailable lower voltage. I have no idea how to test this, but in any case it can't hurt. Change-Id: Id098e09418b665645814a6ee2d41a3bff72238ba Signed-off-by: Jens Rottmann <JRottmann@LiPPERTembedded.de> Reviewed-on: http://review.coreboot.org/2448 Tested-by: build bot (Jenkins) Reviewed-by: Peter Stuge <peter@stuge.se>
2013-02-18Persimmon: disable APU PCIe port 3Jens Rottmann
According to DB-FT1 rev. D schematics the APU PCIe lane 3 is unconnected. Reflect this fact in the mainboard code. Change-Id: Ic98f4a63ef971628df7fbf97f56b80ebe7cb8517 Signed-off-by: Jens Rottmann <JRottmann@LiPPERTembedded.de> Reviewed-on: http://review.coreboot.org/2447 Tested-by: build bot (Jenkins) Reviewed-by: Peter Stuge <peter@stuge.se>
2013-02-18Persimmon: adapt PCIe reset code copied from Inagua to actually match PersimmonJens Rottmann
Comparing Persimmon and Inagua schematics and Coreboot code show the PCIe reset code has been blindly copied even though it doesn't suit the Persimmon at all. The Inagua can employ GPIOs 21, 25, 02 to manually reset devices on APU PCIe lanes 0/1, 2, 3 respectively. (Appearently the motivation for this is to revive buggy PCIe gen1 devices which got confused by PCIe gen2 signal training.) However the Persimmon not only doesn't support this, it even needs these 3 pins for the PCI interface! Instead it uses GPIO50 to reset devices on lanes 0-2 all at once. Lane 3 is unconnected anyway. This patch adapts the Persimmon mainboard code according to the DB-FT1 rev. D schematics. Change-Id: I05a657d9bf8cc59acc4f5174eb20375165c860c7 Signed-off-by: Jens Rottmann <JRottmann@LiPPERTembedded.de> Reviewed-on: http://review.coreboot.org/2446 Tested-by: build bot (Jenkins) Reviewed-by: Peter Stuge <peter@stuge.se>
2013-02-15OT200: add CMOS supportChristian Gmeiner
nvramtool works as expected. root@CHGM-DEV-OT200:~# /home/vis/nvramtool -a baud_rate = 19200 debug_level = Emergency Change-Id: Ia25dc5b4f0ed3a2dd7cc67b7d3174db3a6eff70e Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com> Reviewed-on: http://review.coreboot.org/2382 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins)
2013-02-14Chromebooks: mainboard.c: Do not spell Chromebook in CamelCasePaul Menzel
»Chromebook« is the official spelling [1]. So correct that with the following command. $ git grep -l ChromeBook | xargs sed -i s,ChromeBook,Chromebook, The incorrect spelling was only used for the chip name. [1] http://www.google.com/intl/en/chrome/devices/hp-pavilion-chromebook.html#hp-pav Change-Id: I9c19f399a3e3d36bd644ec375822daa384a14961 Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2370 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Marc Jones <marcj303@gmail.com>
2013-02-14Google Butterfly: thermal.h: Align macro contentPaul Menzel
Change-Id: I3729f9bf66fcd72fa8870bb56a9c253a7368c774 Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2371 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Marc Jones <marcj303@gmail.com>
2013-02-14sconfig: rename lapic_cluster -> cpu_clusterStefan Reinauer
The name lapic_cluster is a bit misleading, since the construct is not local APIC specific by concept. As implementations and hardware change, be more generic about our naming. This will allow us to support non-x86 systems without adding new keywords. Change-Id: Icd7f5fcf6f54d242eabb5e14ee151eec8d6cceb1 Signed-off-by: Stefan Reinauer <reinauer@google.com> Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2377 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-14snow: Set up MMU after DRAM is workingDavid Hendricks
This was omitted earlier while we were debugging DRAM code (0a5bc7f). It was likely broken due to inconsistent units earlier on. Now that things are cleaned up and working, let's add it back in. Change-Id: I2f356355c98b2896e2371fa63b9c9f20ae76d634 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2379 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-14snow: remove superfluous printk's from romstage mainDavid Hendricks
These were left over from earlier debugging and are no longer needed. They don't indicate any status or useful info (other than which line of code has been executed). Error messages are available in case something needs attention. Change-Id: Ie09fac29c42908cb8924169e56d8927fb76f02da Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2386 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-14sconfig: rename pci_domain -> domainStefan Reinauer
The name pci_domain was a bit misleading, since the construct is only PCI specific in a particular (northbridge/cpu) implementation, but not by concept. As implementations and hardware change, be more generic about our naming. This will allow us to support non-PCI systems without adding new keywords. Change-Id: Ide885a1d5e15d37560c79b936a39252150560e85 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/2376 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-12Google Butterfly: acpi/thermal.asl: Fix typo »The*re* is no …«Paul Menzel
The commit introducing support for the Google Butterfly Chromebook commit d7bd4eb003f5b6a13943418ae0ac53248a2e34d2 Author: Stefan Reinauer <reinauer@chromium.org> Date: Mon Feb 11 11:11:36 2013 -0800 Add support for "Butterfly" Chromebook Reviewed-on: http://review.coreboot.org/2359 contains the typo, which is corrected now. Change-Id: I932f4cd248cac71c3ede39a7da97162e791827cb Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2373 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Peter Stuge <peter@stuge.se>
2013-02-12Google Butterfly: gpio.h: Correct whitespace errorsPaul Menzel
Correct some whitespace inconsistencies introduced in the following commit. commit d7bd4eb003f5b6a13943418ae0ac53248a2e34d2 Author: Stefan Reinauer <reinauer@chromium.org> Date: Mon Feb 11 11:11:36 2013 -0800 Add support for "Butterfly" Chromebook Reviewed-on: http://review.coreboot.org/2359 Change-Id: Ifeda7eb29ddf855cdfea41ddbd685441ede55756 Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2374 Tested-by: build bot (Jenkins) Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
2013-02-12Google Parrot/Butterfly: fadt.c: Align macros correctlyPaul Menzel
The commits adding support for the Google Parrot Chromebook commit a7198b34ccf120df2a9e5b9f104812e96916ad08 Author: Stefan Reinauer <reinauer@chromium.org> Date: Tue Dec 11 16:00:47 2012 -0800 Add support for Google Parrot Chromebook Reviewed-on: http://review.coreboot.org/2026 and the Google Butterfly Chromebook commit d7bd4eb003f5b6a13943418ae0ac53248a2e34d2 Author: Stefan Reinauer <reinauer@chromium.org> Date: Mon Feb 11 11:11:36 2013 -0800 Add support for "Butterfly" Chromebook Reviewed-on: http://review.coreboot.org/2359 had macros in `fadt.c` which were not aligned correctly and did not adhere to the coding style which uses just one space after `#define`. Fix this and use tabs instead of spaces everywhere. Change-Id: I1422c57a3bdc2faa29d2a6e2064e4d3aeed0f1cb Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2375 Tested-by: build bot (Jenkins) Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
2013-02-12armv7: Add emulation/qemu-armv7 board.Hung-Te Lin
To simplify testing ARM implementation, we need a QEMU configuration for ARM. The qemu-armv7 provides serial output, CBFS simulation, and full boot path (bootblock, romstage, ramstage) to verify the boot loader functionality. To run with QEMU: export QEMU_AUDIO_DRV=none qemu-system-arm -M vexpress-a9 -m 1024M -nographic -kernel build/coreboot.rom Verified to boot until ramstage loaded successfully by QEMU v1.0.50. Change-Id: I1f23ffaf408199811a0756236821c7e0f2a85004 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/2354 Reviewed-by: David Hendricks <dhendrix@chromium.org> Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-11Add support for "Butterfly" ChromebookStefan Reinauer
We're happy to announce coreboot support for the "Butterfly" Chromebook, a.k.a HP Pavilion Chromebook. More information at: http://www.google.com/intl/en/chrome/devices/hp-pavilion-chromebook.html This commit also includes support for the ENE KB3940Q embedded controller running on Quanta's firmware. Change-Id: I194f847a94005218ec04eeba091c3257ac459510 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/2359 Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Tested-by: build bot (Jenkins)
2013-02-11snow: fix high_tables_base calculationDavid Hendricks
It was off by a few orders of magnitude. D'oh. Change-Id: I9c8a3d5bd9ce261f914cfc7d05d86a1c61519b81 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2355 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-02-11AMD/Persimmon: Enable the 2nd COM portDave Frodin
The hardware is there, so turn it on. Change-Id: I40aff1e84a22a05599c62b9f0b20397df0a40b15 Signed-off-by: Dave Frodin <dave.frodin@se-eng.com> Reviewed-on: http://review.coreboot.org/2353 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-02-11Supermicro H8QGI: Substract 1 from MMCONF range limitKonstantin Aladyshev
MMCONF space is defined by two config parameters: MMCONF_BASE_ADDRESS (0xF800 0000) MMCONF_BUS_NUMBER (64) Coreboot allocates 1MB per bus, so MMCONF limit should be: 0xF800 0000 + 64*(0x0010 0000) - 1 = 0xFBFF FFFF Current code does not have (-1) component, this makes MMCONF limit equal 0xFC00 FFFF. Not 0xFC00 0000, because according to BKDG lower two bytes of MMIO limit always equal 0xFFFF: MMIOLimit = {MMIOLimitRegister[47:16], FFFFh}. Add (-1) to correct this issue. No functionality change has been experienced. The five times slower RAM speed compared to the proprietary vendor BIOS still remains. Change-Id: I2c6494c28bb8d36e54ceb2aa7d8d965b0103cbe9 Signed-off-by: Konstantin Aladyshev <aladyshev@nicevt.ru> Reviewed-on: http://review.coreboot.org/2193 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martin.roth@se-eng.com> Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-02-11armv7/exynos5250/snow: deprecate CONFIG_{RAMBASE,RAMTOP}David Hendricks
RAMBASE and RAMTOP are leftovers from the x86 port and do not apply the same way on ARM platforms. On x86 they refer to the low memory region where coreboot tables reside. However on ARM we don't have such a region which is architecturally defined. So instead we'll use the CPU-defined DRAM base address and the mainboard-defined DRAM size. This also has the pleasant side-effect of fixing the coreboot tables to not clobber ramstage code... Change-Id: I5548ecf05e82f9d9ecec8548fabdd99cc1e39c3b Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2351 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-10exynos/snow: move SPI GPIO setup to mainboard bootblock codeDavid Hendricks
This moves GPIO setup from chip-specific SPI code to mainboard- specific bootblock code. This makes exynos_spi_open a bit more generic so it can eventually be used for any SPI channel. This also benefits CBFS since the user can set media->context to to any set of SPI registers. Change-Id: I2bcb9de370df0a79353c14b4d021b471ddebfacd Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2347 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-10exynos/snow: set SPI clock rate in romstage mainDavid Hendricks
This moves the setting of SPI clock rate into romstage's main, which allows us to eliminate a bunch of dependencies from the bootblock (about 7KB worth). Change-Id: I371499bb4af6a6aa838294bc56f9dbc21864957a Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2346 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-09romcc: Use default romcc flags for most boardsPatrick Georgi
Except for one board, the flags can be derived from CONFIG_MMX and CONFIG_SSE. Change-Id: I64a11135ee7ce8676f3422b2377069a3fa78e24d Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/2336 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-02-09snow: do something useful in ramstage()David Hendricks
This cleans up Snow's trivial ramstage, gives it a coreboot table address and calls hardwaremain(). Change-Id: I84c904bcfd57a5f9eb3969de8a496f01e43bc2f6 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2328 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-08armv7/snow: Move clock initialization from bootblock to romstage.Hung-Te Lin
Exynos system clock can be initialized before RAM init, not necessary to be in the very beginning (boot block). This helps reducing bootblock dependency. Verified to boot on armv7/snow. Note: this patch was originally introduced in 2308, but there were some ordering issues so it was reverted. Change-Id: Ibc91c0e26ea8881751fc088754f5c6161d011b68 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2320 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-02-08armv7: Use same console initialization procedure for all ARM stagesHung-Te Lin
Use same console initialization procedure for all ARM stages (bootblock, romstage, and ramstage): #include <console/console.h> ... console_init() ... printk(level, format, ...) Verified to boot on armv7/snow with console messages in all stages. Change-Id: Idd689219035e67450ea133838a2ca02f8d74557e Signed-off-by: Hung-Te Lin <hungte@chromium.org> Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2301 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-02-08console: Revise serial console configuration names.Hung-Te Lin
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>
2013-02-08Revert "armv7/snow: Move clock initialization from bootblock to romstage."David Hendricks
This reverts commit 9029f4b63f6d0e29bf1608e666cdb025de45ca24 This patch needs to go at the end of the UART patch set. Sorry 'bout the confusion! Change-Id: I5702c7d6130daf95776f2c15d24e5d253691cefd Reviewed-on: http://review.coreboot.org/2319 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
2013-02-07armv7/snow: Move clock initialization from bootblock to romstage.Hung-Te Lin
Exynos system clock can be initialized before RAM init, not necessary to be in the very beginning (boot block). This helps reducing bootblock dependency. Verified to boot on armv7/snow. Change-Id: Ic863e222871a157ba4279a673775b1e18c6eac0d Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/2308 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
2013-02-07armv7/snow: Remove power_init from bootblock.Hung-Te Lin
The power_init is not required on Exynos 5250 (snow) in bootblock stage. To get a cleaner and faster bootblock, we can remove it. Note, power_init internally calls max77686 and s3c24x0_i2c, so both files are also removed. Verified to boot on armv7/snow. Change-Id: I5b15dfe5ac7bf4650565fea0afefc94a228ece29 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/2317 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-07armv7/snow: Remove redundant I2C initialization calls in bootblock.Hung-Te Lin
The I2C initialization (on component MAX77688) is already done in power_init, so we should not need an explicit call inside bootblock. Verified to boot on armv7/snow. Change-Id: I68c248a8b5fee4ab838b2fb708649e112559cc41 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/2316 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-07armv7: Clean up arm/snow bootblock build process.Hung-Te Lin
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>
2013-02-06armv7: Clean up: remove deprecated SPL.Hung-Te Lin
"SPL" from U-Boot is deprecated by bootblock in coreboot/arm, so we don't need it anymore. Change-Id: Id16877075d0b870839a10160073ad70777a2af0a Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/2297 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-02-06snow: remove dead code from bootblockDavid Hendricks
This attempts to clean out some dead code which was copy + pasted into Snow's bootblock.c file, along with some unnecessary headers. Change-Id: If9f157a52395a047c249a2a6385e0e8ddf310e59 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2291 Tested-by: build bot (Jenkins)
2013-02-06exynos/snow: Move core/memory clock-related and board ID codeDavid Hendricks
This patch moves ARM core and DRAM timing functions around to simplify the dependencies for system_clock_init(). The original code was architected such that the system_clock_init() function called other functions to obtain core and memory timings. Due to the way memory timing information must be obtained on Snow, which entails decoding platform-specific board straps, the bottom- up approach resulted in having the low-level clock init code implicitly depend on board and vendor-specific info: main() ->system_clock_init() -> get_arm_ratios() -> CPU-specific code -> clock_get_mem_timings() -> board_get_revision() -> read GPIOs (3-state logic) -> Decode GPIOs in a vendor-specific manner -> Choose memory timings from module-specific look-up table ...then proceed to init clocks ...come back to main() The new approach gathers all board and vendor-specific info in a more appropriate location and passes it into system_clock_init(): main() -> get_arm_ratios() -> CPU-specific code -> get_mem_timings() -> board_get_config() -> read GPIOs (3-state logic) -> Decode GPIOs in a vendor-specific manner -> Choose memory timings from module-specific look-up table -> system_clock_init() ...back to main() Change-Id: Ie237ebff76fc2d8a4d2f4577a226ac3909e4d4e8 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2271 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-02-06snow: use bootblock build class for I2C codeDavid Hendricks
This gets rid of a bunch of duplicate I2C code in the bootblock. Change-Id: I51f625a0f738cca4ed2453fbcb78092e4110bc7e Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2289 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-06snow: use bootblock build class for GPIODavid Hendricks
This gets rid of a bunch of copy + pasted GPIO code. Change-Id: I548b2b5d63642a9da185eb7b34f80cbebf9b124f Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2288 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-05snow: use bootblock build class for UART codeDavid Hendricks
This gets rid of a bunch of copy + pasted code from Exynos UART files. Change-Id: I9fbb6d79a40a338c9fdecd495544ff207909fd37 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2286 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
2013-02-04AGESA boards: Fix grammar in description of `OemCustomizeInitEarly`Paul Menzel
The following command was used to correct the grammatical mistake. $ git grep -l 'This is the stub function will call' | xargs sed -i s,This is the stub function will call,This stub function will call, '{}' sed: -e Ausdruck #1, Zeichen 6: Nicht beendeter `s'-Befehl As this file seems to have been copied around a lot, it originally seems to have come with the following commit for AMD Persimmon and AMD Inagua. commit 69da1b676cd3f126b27a6fd3c23c557ac1a03961 Author: Frank Vibrans <frank.vibrans@amd.com> Date: Mon Feb 14 19:04:45 2011 +0000 Add IBASE DB-FT1 and AMD Inagua motherboards. Patch 8 of 8. Change-Id: I2e6630a5172738b01e6def7062284f167e5508b1 Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2268 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
2013-02-04ASRock 939A785GMH: Align comments of DSDT’s `IndexField`Paul Menzel
Remove superfluous spaces and use tabulators. Change-Id: Ic8b32b10c4e287a058a395e54214b9923ee48bdd Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2276 Tested-by: build bot (Jenkins) Reviewed-by: Steve Goodrich <steve.goodrich@se-eng.com> Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
2013-02-04ASRock 939A785GMH: Align comments in DSDT header with tabsPaul Menzel
Change-Id: Ie64c231188310c4248ad0aaf9cdfcea12666bf2f Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2275 Tested-by: build bot (Jenkins) Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
2013-02-04Use tabs instead of spaces to align comments in DSTD headerPaul Menzel
AOpen DXPL Plus-U and Intel XE7501devkit use »COREBOOT« as OEM Table ID. Unify the DSDT by aligning the comments in the DSDT header with tabs in accordance with the coding style [1]. [1] http://www.coreboot.org/Development_Guidelines#Coding_Style Change-Id: I78e6aa8d0318b519b1df5e2178d387dc58e48323 Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2278 Tested-by: build bot (Jenkins) Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
2013-02-04Intel based boards: Use tab instead of spaces to align comment in DSDTPaul Menzel
Mainboards using `COREBOOT` as their OEM Table ID in their DSDT header were copied from the same source and therefore had spaces instead of a tab to align that comment for that header field. These are mostly Intel based boards. Fix that in accordance with the coding style [1]. [1] http://www.coreboot.org/Development_Guidelines#Coding_Style Change-Id: I299b955930dbd50b9717e8ff141ce8f3fd534e5f Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2277 Tested-by: build bot (Jenkins) Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
2013-02-04exynos/snow: get rid of board-specific arbitration codeDavid Hendricks
Snow's AP, EC, PMU, and smarty battery share a bus. Both the AP and EC can act as a master, so to avoid conflicts an arbitration mechanism consisting of two GPIOs is used. By default, the AP "owns" the bus unless it is off (in which case the EC doesn't monitor the arbitration pins). This means the boot firmware does not need to worry about these lines. The payload may if it needs to communicate with the EC, though. In any case, board-specific bus arbitration logic does not belong in a low-level driver that is supposed to be generic for an entire CPU family. If the payload needs to talk to the EC, we'll deal with it there. Change-Id: I0774d4592af2b21b6ad668441532c5ceab988404 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2272 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-04exynos/snow: partial clean-up of snow bootblock using build classDavid Hendricks
This removes some duplicate code from Snow's mainboard bootblock by utilizing the bootblock build class. Change-Id: I153247370a8c5127260082dcdca3ebdc5e104fb8 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2270 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-03armv7: Add 'bootblock' build class.Hung-Te Lin
For ARM platform, the bootblock may need more C source files to initialize UART / SPI for loading romstage. To preventing making complex and implicit dependency by using #include inside bootblock.c, we should add a new build class "bootblock". Also #ifdef __BOOT_BLOCK__ can be used to detect if the source is being compiled for boot block. For x86, the bootblock is limited to fewer assembly files so it's not using this class. (Some files shared by x86 and arm in top level or lib are also changed but nothing should be changed in x86 build process.) Change-Id: Ia81bccc366d2082397d133d9245f7ecb33b8bc8b Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/2252 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-02-01AMD/Persimmon: LVDS assignment was made to wrong DPxDave Frodin
The LVDS is on DP0, not DP1. Change-Id: I724764d0f013e7a10d974a8716e075139982ded2 Signed-off-by: Dave Frodin <dave.frodin@se-eng.com> Reviewed-on: http://review.coreboot.org/2259 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martin.roth@se-eng.com> Reviewed-by: Mike Loptien <mike.loptien@se-eng.com>
2013-02-01snow: make romstage init DRAM controller and call ramstageRonald G. Minnich
This is a first cut at a romstage. It sets up memory, although that needs some work; and finds and loads a ramstage. Change-Id: I02a0eb48828500bf83c3c57d4bacb396e58bf9a5 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2245 Tested-by: build bot (Jenkins)
2013-02-01Fam15tn: Move SPD read from mainboards into wrapperMartin Roth
Continuing with the mainboard cleanup for F15tn, move the functions to read the SPD from the mainboards for Thatcher and Parmer into the wrapper for the northbridge/amd/agesa/family15tn. Move the SPD address customization for the mainboard into the devicetree.cb file. Unrelated side note - Porting.h has an un-closed #pragma pack(1) that can cause confusing side-effects. AGESA's structures all use this, but coreboot's don't. Be sure to include the coreboot .h files BEFORE Porting.h is included, not after. This fix has been tested. Change-Id: I89cdd225be61f60c6b8e7020e6f8b879983bbd96 Signed-off-by: Martin Roth <martin.roth@se-eng.com> Reviewed-on: http://review.coreboot.org/2190 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Siyuan Wang <wangsiyuanbuaa@gmail.com>
2013-02-01armv7: unify stage hand-off routinesDavid Hendricks
This replaces the current stage-specific exit/entry functions with generic versions. Now all stages compile with stage_entry(), which is placed at .text.stage_entry.armv7, and stage_exit(). Snow's ramstage files are also updated to avoid build breakage. Change-Id: I953a2c4b8121bd4b66c3362557997a9ca3aa53b0 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2254 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-01-30armv7: Add SPI driver for Exynos.Hung-Te Lin
The SPI flash driver for Exynos chipset. Verified to boot on snow/armv7. Change-Id: I7eef67a9c57f825d09f13ea44c2b59b54345fa7b Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/2229 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-30Extend CBFS to support arbitrary ROM source media.Hung-Te Lin
Summary: Isolate CBFS underlying I/O to board/arch-specific implementations as "media stream", to allow loading and booting romstage on non-x86. CBFS functions now all take a new "media source" parameter; use CBFS_DEFAULT_MEDIA if you simply want to load from main firmware. API Changes: cbfs_find => cbfs_get_file. cbfs_find_file => cbfs_get_file_content. cbfs_get_file => cbfs_get_file_content with correct type. CBFS used to work only on memory-mapped ROM (all x86). For platforms like ARM, the ROM may come from USB, UART, or SPI -- any serial devices and not available for memory mapping. To support these devices (and allowing CBFS to read from multiple source at the same time), CBFS operations are now virtual-ized into "cbfs_media". To simplify porting existing code, every media source must support both "reading into pre-allocated memory (read)" and "read and return an allocated buffer (map)". For devices without native memory-mapped ROM, "cbfs_simple_buffer*" provides simple memory mapping simulation. Every CBFS function now takes a cbfs_media* as parameter. CBFS_DEFAULT_MEDIA is defined for CBFS functions to automatically initialize a per-board default media (CBFS will internally calls init_default_cbfs_media). Also revised CBFS function names relying on memory mapped backend (ex, "cbfs_find" => actually loads files). Now we only have two getters: struct cbfs_file *entry = cbfs_get_file(media, name); void *data = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, name, type); Test results: - Verified to work on x86/qemu. - Compiles on ARM, and follow up commit will provide working SPI driver. Change-Id: Iac911ded25a6f2feffbf3101a81364625bb07746 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/2182 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-30ASRock E350M1: Remove unused variable `reg8` from `romstage.c`Paul Menzel
[…] CC romstage.inc src/mainboard/asrock/e350m1/romstage.c: In function 'cache_as_ram_main': src/mainboard/asrock/e350m1/romstage.c:48:5: warning: unused variable 'reg8' [-Wunused-variable] This change was already done for AMD Persimmon in the following commit. commit d7a696d0f229abccc95ff411f28d91b9b796ab74 Author: efdesign98 <efdesign98@gmail.com> Date: Thu Sep 15 15:24:26 2011 -0600 Persimmon updates for AMD F14 rev C0 Change-Id: I8f1ae1a609b87b197583934f0556f66b64e6994d Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2230 Tested-by: build bot (Jenkins) Reviewed-by: Peter Stuge <peter@stuge.se>
2013-01-29armv7: Clean up the mmu setup a bitRonald G. Minnich
The previous incarnation did not use all of mmu_setup, which meant we did not carefully disable things before (possibly) changing them. This code is tested and works, and it's a bit of a simplification. Change-Id: I0560f9b8e25f31cd90e34304d6ec987fc5c87699 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2204 Reviewed-by: Peter Stuge <peter@stuge.se> Tested-by: build bot (Jenkins)
2013-01-28AMD/Persimmon: DP0 is connected to a LVDS connectorDave Frodin
This change is required in order to use a LVDS panel attached to the LVDS connector. Change-Id: Id97c233f964151b6515bd46c797425d0e6690cbd Signed-off-by: Dave Frodin <dave.frodin@se-eng.com> Reviewed-on: http://review.coreboot.org/2188 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martin.roth@se-eng.com> Reviewed-by: Marc Jones <marcj303@gmail.com>
2013-01-26AMD boards, ASRock E350M1: Remove whitespace in front of comma in DSDTPaul Menzel
commit 585a4006976e903599b7128200a29b5729777818 Author: zbao <fishbaozi@gmail.com> Date: Thu Apr 12 11:27:26 2012 +0800 Leverage the Pstate table created by AGESA. … introduced unneeded whitespace in front of a comma. Revert that part of the above commit. In the file for AMD Dinar tabs and spaces are mixed, but leave that alone for the beginning. Change-Id: I279cd0cb0be8c79258034733773f2ae1c2207cce Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2187 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martin.roth@se-eng.com>
2013-01-22F15tn: Fix all warnings, enable warnings as errorsMartin Roth
Enable 'all warnings being treated as errors' in thatcher and parmer. Fixed the following warnings on parmer / thatcher: src/vendorcode/amd/agesa/f15tn/Proc/CPU/Feature/cpuFeatureLeveling.c: In function 'GetGlobalCpuFeatureListAddress': src/vendorcode/amd/agesa/f15tn/Proc/CPU/Feature/cpuFeatureLeveling.c:291:14: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] src/vendorcode/amd/agesa/f15tn/Proc/CPU/S3.c: In function 'SaveDeviceContext': src/vendorcode/amd/agesa/f15tn/Proc/CPU/S3.c:245:18: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] src/vendorcode/amd/agesa/f15tn/Proc/CPU/S3.c:309:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] src/vendorcode/amd/agesa/f15tn/Proc/CPU/cpuPostInit.c: In function 'GetPstateGatherDataAddressAtPost': src/vendorcode/amd/agesa/f15tn/Proc/CPU/cpuPostInit.c:235:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] src/vendorcode/amd/agesa/f15tn/Proc/Mem/NB/TN/mntn.c: In function 'MemNInitNBDataTN': src/vendorcode/amd/agesa/f15tn/Proc/Mem/NB/TN/mntn.c:353:32: warning: assignment from incompatible pointer type [enabled by default] src/vendorcode/amd/agesa/f15tn/Proc/Mem/NB/TN/mntn.c:363:23: warning: assignment from incompatible pointer type [enabled by default] src/vendorcode/amd/agesa/f15tn/Proc/CPU/Feature/cpuFeatureLeveling.c: In function 'GetGlobalCpuFeatureListAddress': src/vendorcode/amd/agesa/f15tn/Proc/CPU/Feature/cpuFeatureLeveling.c:291:14: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] src/vendorcode/amd/agesa/f15tn/Proc/CPU/S3.c: In function 'SaveDeviceContext': src/vendorcode/amd/agesa/f15tn/Proc/CPU/S3.c:245:18: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] src/vendorcode/amd/agesa/f15tn/Proc/CPU/S3.c:309:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] In file included from src/northbridge/amd/agesa/family15tn/northbridge.c:37:0: src/vendorcode/amd/agesa/f15tn/AGESA.h:1547:0: warning: "TOP_MEM" redefined [enabled by default] src/include/cpu/amd/mtrr.h:31:0: note: this is the location of the previous definition src/vendorcode/amd/agesa/f15tn/AGESA.h:1548:0: warning: "TOP_MEM2" redefined [enabled by default] src/include/cpu/amd/mtrr.h:34:0: note: this is the location of the previous definition In file included from src/northbridge/amd/agesa/family15tn/northbridge.c:41:0: src/vendorcode/amd/agesa/f15tn/Proc/CPU/cpuRegisters.h:378:0: warning: "LOCAL_APIC_ADDR" redefined [enabled by default] src/include/cpu/x86/lapic_def.h:9:0: note: this is the location of the previous definition In file included from src/mainboard/amd/parmer/BiosCallOuts.h:24:0, from src/mainboard/amd/parmer/mainboard.c:28: src/vendorcode/amd/agesa/f15tn/AGESA.h:1547:0: warning: "TOP_MEM" redefined [enabled by default] src/include/cpu/amd/mtrr.h:31:0: note: this is the location of the previous definition src/vendorcode/amd/agesa/f15tn/AGESA.h:1548:0: warning: "TOP_MEM2" redefined [enabled by default] src/include/cpu/amd/mtrr.h:34:0: note: this is the location of the previous definition Change-Id: Iecea28232f1761401cf09f7d2a77d3fbac2f5801 Signed-off-by: Martin Roth <martin.roth@se-eng.com> Reviewed-on: http://review.coreboot.org/2171 Tested-by: build bot (Jenkins) Reviewed-by: Dave Frodin <dave.frodin@se-eng.com> Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-01-21Hudson: Cleanup - change SB800 references to hudsonMartin Roth
Go through southbridge/amd/agesa/hudson, thatcher and parmer mainboard directories and change all references to sb800 to reference hudson instead. This is just cleanup and should make no functional difference. Change-Id: Icd6a9a08c4bbf5e1aed394362d24c05811ed1fba Signed-off-by: Martin Roth <martin.roth@se-eng.com> Reviewed-on: http://review.coreboot.org/2177 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com> Reviewed-by: Dave Frodin <dave.frodin@se-eng.com>
2013-01-21AGESA F15tn: Move callouts into northbridge wrapperMartin Roth
There are currently too many things in the mainboard directories that are really more suited to being in the northbridge / southbridge wrappers. This is a start at moving some of those functions down into the wrappers. Move the bios callback functions into the northbridge/amd/agesa/family15tn directory from the mainboard directories. These can still be overridden by any mainboard just by updating the pointer in the callback table to point to a customized version of the function. Change-Id: Icefaa014f4a4abbe51870aee7aa2fa1164e324c1 Signed-off-by: Martin Roth <martin.roth@se-eng.com> Reviewed-on: http://review.coreboot.org/2169 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
2013-01-21Hudson: Changes to support agesa/hudson for legacy freeMartin Roth
Add Kconfig option for Legacy free and hook it into the parmer AGESA initialization as well as the FADT code. This should really be done inside the southbridge wrapper and not in the mainboard, but for now the code to attach it to is inside the mainboard. Update Kconfig for parmer and thatcher to default to legacy free. Change-Id: Ib899bd02ddc5506caae4aca2c589cc2526638cb8 Signed-off-by: Martin Roth <martin.roth@se-eng.com> Reviewed-on: http://review.coreboot.org/2157 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
2013-01-21Parmer / Thatcher: devicetree.cb cleanup and whitespaceMartin Roth
Re-formatting and cleaning up the devicetree.cb files for parmer and thatcher. Change-Id: Ic458e59701c1f2593b0a035b96cac60df476ee82 Signed-off-by: Martin Roth <martin.roth@se-eng.com> Reviewed-on: http://review.coreboot.org/2164 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com> Reviewed-by: Zheng Bao <zheng.bao@amd.com>
2013-01-21F15tn: Modify devicetree to fix S3 resumeMartin Roth
The way that devicetree.cb was configured for the family 15tn boards was doing... interesting things to the video device initialization. This was causing S3 resume to fail. There is a disconnect between how the devicetree should be configured if there are multiple HT links on the CPU and how it's configured if there's only one HT link. These platforms were set up as if they had multiple HT links, which was causing duplicate instances of devices in the device list. The scan for the IO Hub was removed from the northbridge code which isn't a problem for F15tn devices. Change-Id: I3556b43027746e36b07de7cb1bece4d1b37a3c34 Signed-off-by: Martin Roth <martin@se-eng.com> Reviewed-on: http://review.coreboot.org/2160 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
2013-01-19armv7/snow: get to romstageDavid Hendricks
This patch does a few things to get us into romstage: - Add romstage as a stage (a later patch adds it as a binary, which is probably wrong). The Makefile magic is complex enough that we let it build the XIP file for now, but we no longer use it. - Replace findstage with loadstage. Loadstage will find a stage, load the code to memory, and zero the remaining part of memory. Now we can link the romstage to go anywhere! - Eliminate magic offsets from code/ldscripts and centralize Kconfig variables in src/cpu/samsung/exynos5250/Kconfig. - Tidy up code and serial output Change-Id: Iae4d2f9e7f429cb1df15d49daf9a08b88d75d79d Signed-off-by: David Hendricks <dhendrix@chromium.org> Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/2174 Tested-by: build bot (Jenkins)
2013-01-18armv7: add a wrapper for romstage's main() for ARM ISAGabe Black
This adds a wrapper around main() in romstage which is compiled using -marm. This assumes that the bootblock branches to romstage in ARM mode. The long-term idea is to enforce ABI compatibility when handing off to the next stage by using shims which are which are compiled in a pre- determiend manner and leave the main portions of each stage up to whatever the compiler wants. So it will eventually look like this: 1. bootblock_main (ARM/Thumb) 2. bootblock_exit (ARM) 3. romstage_entry (ARM) 4. romstage_main (ARM/Thumb) (credit to Gabe Black for writing the patch, I'm just uploading it) Change-Id: I4fdb8d2c6c2c0a7178bcb9154c378ddce0567309 Signed-off-by: David Hendricks <dhendrix@chromium.org> Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/2175 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-18Snow bootblock (bloated/debug version)David Hendricks
This is the bloated Snow bootblock which includes: - SPI driver - UART, including requisite I2C, Maxim PMIC, and clock config code. - Adjustments for magic offsets (id section, stack pointer address) This is just a temporary solution until we have romstage loading. Once that happens, we'll rip out all but the code necessary for copying SPI ROM content into SRAM. Change-Id: I2a11e272eb9b6f626b5d9783eabb4a720a1d06be Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2170 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-17make main() in snow's romstage.c our romstage entry pointDavid Hendricks
Our earlier attempt was jumping straight from asm to the old u-boot board_init_f in lowlevel_init_c.c. We are getting ready to transition to using a real bootblock for ARM, so add romstage.c to the files compiled and we'll make main() our entry point. This also updates romstage.ld to place main() (*(.text.startup)) at the beginning of romstage. Change-Id: Ifc77a6bfba27d915c4cad62c6c8040665294628a Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2163 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-17remove argument in snow's romstage main()David Hendricks
We don't pass any arguments into romstage on ARM. Change-Id: I018f28a57fc486c9240345cf0f4043b79027d864 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2162 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-16Fix high dword of MTRR mask set with CONFIG_CPU_ADDR_BITSMartin Roth
Bits were being shifted off the end of the mask accidentally. This results in all masks being 32 bits wide instead of 48. Change-Id: I5f4d1b6a323df1aa4568ff4491f82447b8a2f839 Signed-off-by: Martin Roth <martin.roth@se-eng.com> Reviewed-on: http://review.coreboot.org/2146 Tested-by: build bot (Jenkins) Reviewed-by: Zheng Bao <zheng.bao@amd.com> Reviewed-by: Marc Jones <marcj303@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2013-01-11AMD: Set the mask of MTRR according to CONFIG_CPU_ADDR_BITSZheng Bao
The high bits of mtrr mask are MBZ (Must be zero). Writing 1 to these bits will cause exception. So be carefull when spread this change. The supermicro/h8scm needs more work. Currently it is set as it was. We need to check if the F10 and F15 have different value. Change-Id: I2dd8bf07ecee2fe4d1721cec6b21623556e68947 Signed-off-by: Zheng Bao <zheng.bao@amd.com> Signed-off-by: zbao <fishbaozi@gmail.com> Reviewed-on: http://review.coreboot.org/1661 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
2013-01-10armv7: replace magic constant for romstage locationDavid Hendricks
This replaces 0x02023400 with an SoC-specific Kconfig variable. Change-Id: I21482d54a1e1fa6c4437c030ddae2b0bb3331551 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2130 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-10Fix 2 infinite loops if IMC doesn't respondMartin Roth
ACPI code: The ACPI code is not currently being compiled in by default, but assuming that it will be at some point, I'm fixing the loop that waits for the IMC to respond after sending it a command. The loop now exits after 500ms, similar to the function in agesa. Agesa Code: a 16 bit variable will always be less than 100000. Change to be a 32 bit variable. Change-Id: I9430ef900a22d056871b744f3b1511abdfea516e Signed-off-by: Martin Roth <martin@se-eng.com> Reviewed-on: http://review.coreboot.org/2119 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-01-08qemu-x86: Implement more featuresStefan Reinauer
This patch switches the Qemu target to use (pseudo) Cache As RAM and enables some ACPI code. This allows to use the CBMEM console and timestamp code with coreboot in Qemu. Right now, the ACPI code is commented out because leaving it in breaks IDE. Change-Id: Ie20f3ecc194004f354ae3437b9cf9175382cadf8 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/2113 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-04Tyan s8226: change lapic of lapic_cluster 0 to 0x10Siyuan Wang
There are two CPUs on s8226 and each CPU has 8 cores. CPU 0 takes lapic from 0x10 to 0x17 and CPU 1 takes from 0x20 to 0x27. So the first core's lapic is 0x10 rather than 0x20. Change-Id: I925114d44f2f4974eb62c3832d8c9139a2a06c96 Signed-off-by: Siyuan Wang <SiYuan.Wang@amd.com> Signed-off-by: Siyuan Wang <wangsiyuanbuaa@gmail.com> Reviewed-on: http://review.coreboot.org/2099 Reviewed-by: Zheng Bao <zheng.bao@amd.com> Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-03Rename mainboard_smi.c to smihandler.cPatrick Georgi
This mirrors the naming convention of handlers in northbridge and southbridge. Change-Id: I45d97c569991c955f0ae54ce909d8c267e9a5173 Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/2058 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-01-03import SPL files for board_i2c_{claim,release}_bus()David Hendricks
This imports SPL (second phase loader) files from U-Boot. Most of the content of these files will eventually go away since they're fairly U-Boot specific. For now they are here to make Jenkins happy. Change-Id: Ib3a365ecb9dc304b20f7c1c06665aad2c0c53e69 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2081 Tested-by: build bot (Jenkins) Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2013-01-02Supermicro H8QGI: Pass callout pointer to AmdReadEventLog functionAladyshev Konstantin
I have issues when AmdReadEventLog function tries to use BiosCallouts interface. So it is necessary to provide callout pointer to this function. Change-Id: I4080e5f07d5d28c41688b2a7deff944b7a0f7bf7 Signed-off-by: Aladyshev Konstantin <aladyshev@nicevt.ru> Reviewed-on: http://review.coreboot.org/2064 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com> Reviewed-by: Zheng Bao <zheng.bao@amd.com>
2012-12-30M4A785T-M: Add support for external GFX.Denis 'GNUtoo' Carikli
This commit enables the external graphics card. In order to work, the internal graphic card has to be disabled, that is done in src/device/device.c through: vga_onboard->ops->disable(vga_onboard); which calls the RS780 disable operation introduced in the following commit: "rs780: add .disable pcie_ops" This commit was tested with and without the following card: 02:00.0 VGA compatible controller: nVidia Corporation GT218 [GeForce 210] (rev a2) Thanks Aladyshev for the pointer(in the #coreboot IRC channel on Freenode servers): Dec 20 19:43:32 <Aladyshev> If you list your internal card in devicetree.cb, coreboot will distinguish external and internal VGA and choose external one Change-Id: I92e59dffd158db096a6e99d1ef6e2e248fef933c Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org> Reviewed-on: http://review.coreboot.org/2067 Tested-by: build bot (Jenkins) Reviewed-by: Dave Frodin <dave.frodin@se-eng.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-12-29corrections for MAX77686 config variableDavid Hendricks
Fix some minor discrepancies which prevented the MAX77676 from getting compiled in properly. Change-Id: Ib29136da6c15a4bdb24926a91729431c507cd209 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2076 Tested-by: build bot (Jenkins) Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-12-28Supermicro H8QGI: Add onboard VGA to devicetree.cbAladyshev Konstantin
Supermicro H8QGI has integrated Matrox G200 16MB DDR2 graphics. List it in devicetree.cb to mark it as onboard VGA to coreboot. This change makes menuconfig option "Use onboard VGA as primary video device" work. Change-Id: Ia6b9f60e3ae705689f22babd544ad6e628a85df1 Signed-off-by: Aladyshev Konstantin <aladyshev@nicevt.ru> Reviewed-on: http://review.coreboot.org/2042 Tested-by: build bot (Jenkins) Reviewed-by: Siyuan Wang <wangsiyuanbuaa@gmail.com> Reviewed-by: Marc Jones <marcj303@gmail.com>
2012-12-28Supermicro H8QGI: fix bus_sp5100[] clear in get_bus_conf.cAladyshev Konstantin
Fix little mistake in get_bus_conf code Change-Id: I8c09e501082caa0a20266b007c0744630a356de0 Signed-off-by: Aladyshev Konstantin <aladyshev@nicevt.ru> Reviewed-on: http://review.coreboot.org/2046 Tested-by: build bot (Jenkins) Reviewed-by: Siyuan Wang <wangsiyuanbuaa@gmail.com> Reviewed-by: Zheng Bao <zheng.bao@amd.com> Reviewed-by: Marc Jones <marcj303@gmail.com>
2012-12-28BiosCallOuts: Replace REQUIRED_CALLOUTS define with flexible variableAladyshev Konstantin
Size of BiosCallouts[] struct can be calculated as: CallOutCount = sizeof (BiosCallouts) / sizeof (BiosCallouts [0]); There is no longer need for REQUIRED_CALLOUTS define. Originally that change was done for AMD Persimmon in commit d7a696d0f229abccc95ff411f28d91b9b796ab74 Author: efdesign98 <efdesign98@gmail.com> Date: Thu Sep 15 15:24:26 2011 -0600 Persimmon updates for AMD F14 rev C0 without deleting the define. This was ported to some of the other boards and for some the define was not removed. The AMD Inagua, Parmer and Thatcher boards were already adapted but the define was left in. So just remove it for those. Tested on Supermicro H8QGI. Change-Id: Ia09795579a1170fa20ab94a30feb1af6821153d2 Signed-off-by: Aladyshev Konstantin <aladyshev@nicevt.ru> Reviewed-on: http://review.coreboot.org/2049 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martin@se-eng.com> Reviewed-by: Marc Jones <marcj303@gmail.com>
2012-12-21Supermicro H8QGI: Fix routing from 16 to 55 in ACPI tableAladyshev Konstantin
H8QGI board has 2 IO-APICS with 56 IRQ’s: IOAPIC[0]: GSI 0-23 - SB700 southbridge IOAPIC[1]: GSI 24-55 - RD890 northbridge `gDefaultApicDeviceInfoTable[]` structure in northbridge code vendorcode/amd/cimx/rd890/nbIoApic.c has IO-APIC interrupt mapping for HT and IOMMU set to last 31 IRQ pin (24+31=55). CONST APIC_DEVICE_INFO gDefaultApicDeviceInfoTable[] = { // Group Swizzling Port Int Pin {0, 0, 31}, //HT {0, 0, 31}, //IOMMU […] Also the same value (55) can be found in original Supermicro BIOS ACPI DSDT. Change-Id: Ie26da1f773716d1b7f5f5f884050ae799afc0b7e Signed-off-by: Aladyshev Konstantin <aladyshev@nicevt.ru> Reviewed-on: http://review.coreboot.org/2047 Tested-by: build bot (Jenkins) Reviewed-by: Zheng Bao <zheng.bao@amd.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-12-12SB800: Add IMC ROM and fan control.Martin Roth
Add configuration for AMD's IMC ROM and fan registers for cimx/sb800 platforms. - Allows user to add the IMC rom to the build and to configure the location of the "signature" between the allowed positions. - Allows for no fan control, manual setup of SB800 Fan registers, or setup of the IMC fan configuration registers. - Register configuration is done through devicetree.cb. No files need to be added for new platform configuration. - Initial setup is for Persimmon, but may be extended to any cimx/sb800 platform. Change-Id: Ib06408d794988cbb29eed6adbeeadea8b2629bae Signed-off-by: Martin Roth <martin@se-eng.com> Reviewed-on: http://review.coreboot.org/1977 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-by: Marc Jones <marcj303@gmail.com>
2012-12-12Add support for Google Parrot ChromebookStefan Reinauer
AKA Acer C7 Chromebook See http://www.google.com/intl/en/chrome/devices/acer-c7-chromebook.html for more information. Thank you to Sage Electronic Engineering, LLC for making this possible! http://www.se-eng.com/ Change-Id: Ic4e4d50045a82cbb82e1dea3cd5a04525a648612 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/2026 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-12-12Add minimal mainboard support for snowRonald G. Minnich
This is the minimal set of sources that allow the board to build. These need to be filled in with actual code. But if we get these in upstream we can stop working against a WIP patch. Change-Id: I9347a573bb40761f6a12be3ee8febe3ca4be55a3 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/2018 Tested-by: build bot (Jenkins)
2012-12-01Drop TINY_BOOTBLOCKKyösti Mälkki
Change-Id: I38ea2ed2be4d9240ec8cb6d5dc5b3cc578cdaefb Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/1963 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2012-11-30Supermicro h8scm: add agesa version of supermicroSiyuan Wang
Supermicro h8scm has a C32 CPU socket, the details of this board is: http://www.supermicro.com/Aplus/motherboard/Opteron4100/SR56x0/H8SCM-F.cfm We are planning to replace legacy C32 code with agesa and the h8scm_fam10 do not support family 15 CPU, so we update this mainboard with this patch. This code supports memory at 800M Hz of f10 CPU, bu f15 CPU does not has this limitation. If you want to change the frequency of memory, please edit the macros "BLDCFG_MEMORY_BUS_FREQUENCY_LIMIT" and "BLDCFG_MEMORY_CLOCK_SELECT" in src/mainboard/supermicro/h8scm/buildOpts.c Change-Id: I9ca9e70d7f3e82c07e7d36695bf31008db152afb Signed-off-by: Siyuan Wang <SiYuan.Wang@amd.com> Signed-off-by: Siyuan Wang <wangsiyuanbuaa@gmail.com> Reviewed-on: http://review.coreboot.org/1510 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
2012-11-30AMD SB800: Interrupt routine for PCI slots on PersimmonZheng Bao
Set the correct device number in the pcie interrupt routine in ACPI asl. The device number is decided by which address pin is connected to IDSEL. Table 3-1: IDSEL Generation Primary Address AD[15::11] Secondary Address AD[31::16] 0 0000 0000 0000 0000 0001 0 0001 0000 0000 0000 0010 0 0010 0000 0000 0000 0100 0 0011 0000 0000 0000 1000 0 0100 0000 0000 0001 0000 0 0101 0000 0000 0010 0000 0 0110 0000 0000 0100 0000 0 0111 0000 0000 1000 0000 0 1000 0000 0001 0000 0000 0 1001 0000 0010 0000 0000 0 1010 0000 0100 0000 0000 0 1011 0000 1000 0000 0000 0 1100 0001 0000 0000 0000 0 1101 0010 0000 0000 0000 0 1110 0100 0000 0000 0000 0 1111 1000 0000 0000 0000 1 xxxx 0000 0000 0000 0000 On persimmon, PCI slot 0's IDSEL is connected to AD19, so the device number is 3. Slot 1's IDSEL is connected to AD20, so the device number is 4. Change-Id: Ic0fb7ac1c87ec306bf314e4d2b8c2bdc9031081b Signed-off-by: Zheng Bao <zheng.bao@amd.com> Signed-off-by: zbao <fishbaozi@gmail.com> Reviewed-on: http://review.coreboot.org/1610 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martin@se-eng.com> Reviewed-by: Marc Jones <marcj303@gmail.com>
2012-11-30Persimmon: Disable the unused PCI clocksDave Frodin
Change-Id: I4b735fe4e6441f99236e43b34695fdac95b8888a Signed-off-by: Dave Frodin <dave.frodin@se-eng.com> Reviewed-on: http://review.coreboot.org/1875 Tested-by: build bot (Jenkins) Reviewed-by: Zheng Bao <zheng.bao@amd.com> Reviewed-by: Marc Jones <marcj303@gmail.com>
2012-11-30Lumpy: Need byteorder.h in romstageStefan Reinauer
Not sure why this never triggered an error before. Change-Id: I85d8b3b862492df04163a5f751c7ea4288406860 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1946 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
2012-11-29Drop empty mainboard.cKyösti Mälkki
Change-Id: Idcf9349d96297b8cb0ea1e68769e02659ac16ab8 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/1933 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-11-29Drop empty mainboard_opsKyösti Mälkki
Change-Id: I24866142eebcb8fdbc7e21f5b2f364a8d1b264b3 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/1932 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-11-28Remove assembly coded log2 functionRonald G. Minnich
As we move to supporting other systems we need to get rid of assembly where we can. The log2 function in src/lib is identical to the assembly one (tested for all 32-bit signed integers :-) and takes about 10 ns to run as opposed to 5ns for the non-portable assembly version. While speed is good, I think we can spare the 15 ns or so we add to boot time by using the C version only. Change-Id: Icafa565eae282c85fa5fc01b3bd1f110cd9aaa91 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/1928 Tested-by: build bot (Jenkins)
2012-11-28amdk8/amdfam10: Use CAR_GLOBAL for sysinfoPatrick Georgi
This gets rid of the somewhat unstructured placement of AMD's sysinfo structure in CAR. We used to carve out some CAR space using a Kconfig variable, and then put sysinfo there manually (by "virtue" of pointer magic). Now it's a variable with the CAR_GLOBAL qualifier, and build system magic. For this, the following steps were done (but must happen together since the intermediates won't build): - Add new CAR_GLOBAL sysinfo_car - point all sysinfo pointers to sysinfo_car instead of GLOBAL_VAR - remove DCACHE_RAM_GLOBAL_VAR_SIZE - from CAR setup (no need to reserve the space) - commented out code (that was commented out for years) - only copy sizeof(sysinfo) into RAM after ram init, where before it copied the whole GLOBAL_VAR area. - from Kconfig Change-Id: I3cbcccd883ca6751326c8e32afde2eb0c91229ed Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/1887 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Marc Jones <marcj303@gmail.com>
2012-11-27Drop driver-y from GM45/ICH9/RK9Stefan Reinauer
This broke because those components were not yet committed when the patch to drop the driver class was made. Change-Id: I29948223503a6c4b196eafa169c064cd26da1be1 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1934 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-11-27Remove AMD special case for LAPIC based udelay()Patrick Georgi
- Optionally override FSB clock detection in generic LAPIC code with constant value. - Override on AMD Model fxx, 10xxx, agesa CPUs with 200MHz - compile LAPIC code for romstage, too - Remove #include ".../apic_timer.c" in AMD based mainboards - Remove custom udelay implementation from intel northbridges' romstages Future work: - remove the compile time special case (requires some cpuid based switching) - drop northbridge udelay implementations (i945, i5000) if not required anymore (eg. can SMM use the LAPIC timer?) Change-Id: I25bacaa2163f5e96ab7f3eaf1994ab6899eff054 Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Reviewed-on: http://review.coreboot.org/1618 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-11-27Fix technexion tim5690 board VGA handlerStefan Reinauer
When dropping ramstage.a, unused functions with unresolved symbols are not silently dropped anymore. This makes the tim5690 compilation fail. This fix makes sure we don't compile in the int15 handler code when we don't set CONFIG_VGA_ROM_RUN Change-Id: If6872c983d9fd811eb33259421f94b551f3b9b34 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1929 Reviewed-by: Patrick Georgi <patrick@georgi-clan.de> Tested-by: build bot (Jenkins)
2012-11-27Drop duplicate files that prevent building without ramstage.aStefan Reinauer
When dropping ramstage.a duplicate symbols in ramstage will start breaking the build. Hence drop all the duplicate functions implemented by mainboards that have those functions in generic or component code already. Change-Id: I5cf8245c67b6f0f348388db54256d28f47017a61 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1865 Reviewed-by: Patrick Georgi <patrick@georgi-clan.de> Tested-by: build bot (Jenkins)
2012-11-27Get rid of drivers classPatrick Georgi
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>
2012-11-27roda/rk886ex: Correct COMB irq reading / reduce warningsNico Huber
The calculation of COMB's irq reading was wrong by the 4-bit shift. Also, the asl compiler warned about the splitting in lo/hi bytes which seems unnecessary. Change-Id: Ia5101d5a19f68c2da827d7e37a18922f959604c7 Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: http://review.coreboot.org/1923 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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