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path: root/src/devices/oprom
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2012-04-02x86, oprom: ensure DF is always clearedMathias Krause
The Option ROM might mess with the EFLAGS register and break assumptions the C part of coreboot implicitly has, e.g. the state of the direction flag. Prevent Option ROMs from confusing coreboot by restoring the old EFLAGS value after the Option ROMs has finished and always clear the direction flag before calling the C part of the interrupt handler. Change-Id: I84663be6681b17f95f48d93f0b730e443336b4a8 Signed-off-by: Mathias Krause <minipli@googlemail.com> Reviewed-on: http://review.coreboot.org/837 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-03-30Prepare the BIOS data areas before device init.Duncan Laurie
Since we do not run option roms in normal mode nothing was initializing the BDA/EBDA and yet Linux depends very much on it having sane values here. For the most part the kernel tries to work around this not being initialized, but every once in awhile (1/300 boots or so) it would end up reading something that looked sane from BDA but was not and then it would panic. In this change the EBDA is unconditionally setup before devices are initialized. I'm not set on the location in dev_initialize() but there does not seem to be another place to hook it in so that it runs just once for ALL platforms regardless of whether they use option roms or not. (possibly hardwaremain?) The EBDA setup code has been moved into its own location in arch/x86/lib/ebda.c so it can be compiled in even if the option rom code is not. The low memory size is still set to 1MB which is enough to make linux happy without having to hook into each mainboard to get a more appropriate value. The setup_ebda() function takes inputs so it could be changed for a mainboard if needed. OLD/BROKEN would read garbage. Examples from different boots: ebda_addr=0x75e80 lowmem=0x1553400 ebda_addr=0x5e080 lowmem=0x3e51400 ebda_addr=0x7aa80 lowmem=0x2f8a800 NEW/FIXED now reads consistent values: ebda_addr=0xf6000 lowmem=0x100000 Change-Id: I6cb79f0e3e43cc65f7e5fe98b6cad1a557ccd949 Signed-off-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: http://review.coreboot.org/769 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-03-07Move C labels to start-of-linePatrick Georgi
Also mark the corresponding lint test stable. Change-Id: Ib7c9ed88c5254bf56e68c01cdbd5ab91cd7bfc2f Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/772 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-12-13Fix console output in real mode int10 implementation.Stefan Reinauer
Checking RBIL, int10 AH=0x10 does never output a character. The two output functions are AH=0x09 and AH=0x0e. Change-Id: Id7f4d260b63024748ef771f949e8b60f934bacbc Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/483 Tested-by: build bot (Jenkins) Reviewed-by: Rudolf Marek <r.marek@assembler.cz>
2011-11-01remove trailing whitespaceStefan Reinauer
Change-Id: Ib91889a374515d36a2b12b53aeb12b6ea6e22732 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/364 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2011-10-21Use ntohll where appropriate.Stefan Reinauer
also clean out a local copy of ntohl in yabel. Change-Id: Iffe85a53c9ea25abeb3ac663870eb7eb4874a704 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/288 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2011-10-13Fix compilation of x86emu with gcc 4.6.xStefan Reinauer
gcc 4.6 complains about unused but set variables in x86emu. Particularly some variables are always set but only used in debug mode, or when FPU support is enabled. Change-Id: Ic53bd2303171ab717eb2d2c0ed72744d3eb6989e Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/258 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
2011-10-13Fix native x86 option rom initializationStefan Reinauer
- Intel option roms want an initialized i8259 or they will throw an exception 6. This should be done in the southbridge code, but that is executed much later than the VGA init, so initialize the i8259 in src/devices/oprom/x86.c. In the long run this will allow getting rid of some of the ugly hacks in some AMD boards' romstage.c - Don't overwrite the mode when copying mode info information back from 0x600. Change-Id: Idb01f13dbcd736d8d830b222ffe1ea85799fcd9c Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/257 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
2011-10-13refactor vesa mode setting code and bootsplash codeStefan Reinauer
- adds possibility to set a vesa mode without showing a bootsplash - make bootsplash / mode setting code available in real mode. Change-Id: I0045c9d75757657f4ce531889593102ea1e39ce5 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/256 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
2011-10-13Refactor option rom initialization code in coreboot.Stefan Reinauer
- move int15 handler out of the generic code into the mainboard directories of those mainboards that actually use it. - move vbe headers to vbe.h - move function prototypes used in native oprom code to x86.h Change-Id: Idfff5e804ea328f7b5feebac72497c97329320ee Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/255 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
2011-04-21more ifdef -> if fixesStefan Reinauer
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Acked-by: Stefan Reinauer <stefan.reinauer@coreboot.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6536 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2011-04-21some ifdef --> if fixesStefan Reinauer
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Acked-by: Stefan Reinauer <stefan.reinauer@coreboot.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6535 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2011-01-21Make YABEL warnings-are-errors safePatrick Georgi
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Acked-by: Patrick Georgi <patrick.georgi@secunet.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6290 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2011-01-13Improve compatibility of YABEL with real-world VGABIOSesPatrick Georgi
Some of them do weird things to the option rom region (mapping registers there or so) which failed as we handled these memory region in emulation. As they were copied back to real memory after the emulation was done, we can just as well use real memory directly for these regions. This affects IVT, BDA, and option ROM space. Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Acked-by: Joseph Smith <joe@settoplinux.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6251 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-09-30Rename build system variables to be more intuitive, andPatrick Georgi
at the same time let the user specify sources instead of object files: - objs becomes ramstage-srcs - initobjs becomes romstage-srcs - driver becomes driver-srcs - smmobj becomes smm-srcs The user servicable parts are named accordingly: ramstage-y, romstage-y, driver-y, smm-y Also, the object file names are properly renamed now, using .ramstage.o, .romstage.o, .driver.o, .smm.o suffixes consistently. Remove stubbed out via/epia-m700 dsdt/ssdt files - they didn't easily fit in the build system and aren't useful anyway. Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de> Acked-by: Stefan Reinauer <stepan@coreystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5886 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-09-09Make huge macros inline functions for readability. Remove warnings. Trivial.Myles Watson
Signed-off-by: Myles Watson <mylesgw@gmail.com> Acked-by: Myles Watson <mylesgw@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5797 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-09-09My Jmicron SATA card writes the name of the hard drive to the screen.Myles Watson
This redirects that output to the console and implements a basic keyboard stub. Signed-off-by: Myles Watson <mylesgw@gmail.com> Acked-by: Patrick Georgi <patrick.georgi@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5793 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-09-07My Jmicron SATA card depends on the BIOS not clearing AL when setting AH.Myles Watson
Signed-off-by: Myles Watson <mylesgw@gmail.com> Acked-by: Myles Watson <mylesgw@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5784 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-09-07Make a Kconfig option for debugging output from realmode emulation. Trivial.Myles Watson
Signed-off-by: Myles Watson <mylesgw@gmail.com> Acked-by: Myles Watson <mylesgw@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5783 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-08-30Make yabel work for non-zero bus numbers. The link_num is not the bus number.Myles Watson
Signed-off-by: Myles Watson <mylesgw@gmail.com> Acked-by: Myles Watson <mylesgw@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5757 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-08-23mark unused variables in x86emu as unused. gcc has a mechanism for this.Stefan Reinauer
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5738 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-06-09Same conversion as with resources from static arrays to lists, exceptMyles Watson
there is no free list. Converting resource arrays to lists reduced the size of each device struct from 1092 to 228 bytes. Converting link arrays to lists reduced the size of each device struct from 228 to 68 bytes. Signed-off-by: Myles Watson <mylesgw@gmail.com> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5626 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-06-05tly cosmetical. don't use movw because we use mov in most places.Stefan Reinauer
Also, drop some dead code at the very end where some segment registers get set up and are immediately overwritten by pops. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Nils Jacobs <njacobs8@hetnet.nl> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5613 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-06-04This patch fixes the option rom code that was buggy when it switchedEdwin Beasant
segment registers before restoring register values. This was breaking the Geode VSA, and probably would have hurt other option roms as well. Signed-off-by: Edwin Beasant <edwin_beasant@virtensys.com> Acked-by: Patrick Georgi <patrick.georgi@coresystems.de> Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Nils Jacobs <njacobs8@hetnet.nl> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5612 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-05-27fix warnings.Stefan Reinauer
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5594 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-05-23consistently use decimal for the register offsets, and fix comment typos.Stefan Reinauer
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5582 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-05-21Use lists instead of arrays for resources in devices to reduce memory usage.Myles Watson
Signed-off-by: Myles Watson <mylesgw@gmail.com> Acked-by: Patrick Georgi <patrick.georgi@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5576 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-05-11Change real mode API to allow passing intXX number or entry point andStefan Reinauer
some register values from C. This theoretically fixes non-vga option roms, but it also allows to use the same assembler code for option roms and vsm. It will also make using the bootsplash without yabel a lot easier. Factor out and improve BDA setup, do some rom segment setup for those option roms that need it. Don't call the coreboot exception handler if an exception occurs in real mode. It's only partly usable, but mainly the Kontron 986LCD-M (and other i945GM boards) choke on an exception #6 (invalid opcode). This particular issue is not introduced by the changes in this patch but has been around for quite a while at least. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Patrick Georgi <patrick.georgi@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5543 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-04-27Since some people disapprove of white space cleanups mixed in regular commitsStefan Reinauer
while others dislike them being extra commits, let's clean them up once and for all for the existing code. If it's ugly, let it only be ugly once :-) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5507 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-04-26fix a bug in pcibios check. Stefan Reinauer
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5502 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-04-24drop all duplicate copies of vgabios.c in favorStefan Reinauer
of devices/oprom/x86.c. We have some tests on hardware. Moving RAMBASE to 1MB needs to wait a bit until C7 cache_as_ram.inc has been adapted to cache that area or things will become incredibly slow (1.5s boot time instead of 0.5) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5488 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-04-22via epia-m now works with default x86.c instead of its own copy of vgabios.c.Stefan Reinauer
Allows to drop quite a bunch of nasty code Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5478 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-04-21oops, sorry for the last commit. This commit changes the code to distinguishStefan Reinauer
between having VSA functionality in the code, and adding a VSA image to the ROM. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5473 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-04-21Move the prototype for run_vsa.Myles Watson
Signed-off-by: Myles Watson <mylesgw@gmail.com> Acked-by: Myles Watson <mylesgw@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5472 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-04-21* clean up all but two warnings on artecgroup dbe61Stefan Reinauer
* integrate vsm init into normal x86.c code (so it can run above 1M) * call void main(unsigned long bist) except void cache_as_ram_main(void) on Geode LX (as we do on almost all other platforms now) * Unify Geode LX MSR setup (will bring most non-working LX targets back to life) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Patrick Georgi <patrick.georgi@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5471 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-04-13fix a trivial warning when yabel with direct hw access is enabled.Stefan Reinauer
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5421 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-03-23Prepare for using coreboot x86emu in userspace utility "vgabios"Stefan Reinauer
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Joseph Smith <joe@settoplinux.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5275 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-03-17Clean up warnings in yabel vbe code. No more warnings on the IP1000Stefan Reinauer
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5248 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-03-16it was reason for workaround rules already, and it's somewhat ugly:Stefan Reinauer
util/x86emu is the only part of coreboot that is linked into coreboot itself that lives in util/. It's not a utility and it does not really belong where it lives. ---> svn mv util/x86emu src/devices/oprom plus necessary Makefile changes to get it building again Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5228 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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