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2013-02-01lib: Prevent unaligned memory access and fix endianess in LZMA decode library.Hung-Te Lin
LZMA decode library used to retrieve output size by: outSize = *(UInt32 *)(src + LZMA_PROPERTIES_SIZE); 'src' is aligned but LZMA_PROPERTIES_SIZE may refer to an unaligned address like src+5, and using that as integer pointer may fail on platforms like ARM. Also this will fail on systems using big-endian (outSize was encoded in little-endian). To fix this, reconstruct outSize in little-endian way. Change-Id: If678e735cb270c3e5e29f36f1fad318096bf7d59 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/2246 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>
2013-01-22src/lib/timestamp.c: Fix spelling of tim*e*stampPaul Menzel
Change-Id: I96d41882c92e577ce816264c493376d2f2d950f6 Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2181 Reviewed-by: Patrick Georgi <patrick@georgi-clan.de> Tested-by: build bot (Jenkins)
2013-01-19Update gcov patch in documentationStefan Reinauer
.. to reflect the recent changes w.r.t avoiding trouble with the coreboot pre-commit hooks. and fix two whitespace errors. Change-Id: I6c94e95dd439940cf3b44231c8aab5126e9d45c7 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/2158 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-by: Martin Roth <martin.roth@se-eng.com>
2013-01-14Make the pre-commit-hook happy about the code in libgcov.cRonald G. Minnich
Make the comments match what pre-commit-hook wants. Change-Id: Ib99a6583f97221df3638bd3b7723f51d5f9c223c Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/2143 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-01-12Implement GCC code coverage analysisStefan Reinauer
In order to provide some insight on what code is executed during coreboot's run time and how well our test scenarios work, this adds code coverage support to coreboot's ram stage. This should be easily adaptable for payloads, and maybe even romstage. See http://gcc.gnu.org/onlinedocs/gcc/Gcov.html for more information. To instrument coreboot, select CONFIG_COVERAGE ("Code coverage support") in Kconfig, and recompile coreboot. coreboot will then store its code coverage information into CBMEM, if possible. Then, run "cbmem -CV" as root on the target system running the instrumented coreboot binary. This will create a whole bunch of .gcda files that contain coverage information. Tar them up, copy them to your build system machine, and untar them. Then you can use your favorite coverage utility (gcov, lcov, ...) to visualize code coverage. For a sneak peak of what will expect you, please take a look at http://www.coreboot.org/~stepan/coreboot-coverage/ Change-Id: Ib287d8309878a1f5c4be770c38b1bc0bb3aa6ec7 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/2052 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Martin Roth <martin@se-eng.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-12-08Only include libgcc wrappers on x86Stefan Reinauer
ARM does not need them, and they're causing trouble Change-Id: I6c70a52c68fdcdbf211217d30c96e1c2877c7f90 Signed-off-by: David Hendricks <dhendrix@chromium.org> Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/2009 Tested-by: build bot (Jenkins)
2012-12-06Unify assembler function handlingStefan Reinauer
Instead of adding regparm(0) to each assembler function called by coreboot, add an asmlinkage macro (like the Linux kernel does) that can be different per architecture (and that is empty on ARM right now) Change-Id: I7ad10c463f6c552f1201f77ae24ed354ac48e2d9 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1973 Reviewed-by: David Hendricks <dhendrix@chromium.org> Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-11-30Drop boot directoryStefan Reinauer
It only has two files, move them to src/lib Change-Id: I17943db4c455aa3a934db1cf56e56e89c009679f Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1959 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2012-11-30src/lib/Makefile.inc: Add license headerStefan Reinauer
Change-Id: If8bce4ebde9101ac9087fcbd43adc0e08c26352d Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/1957 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-11-30Make set_boot_successful depend on PC80_SYSTEMStefan Reinauer
Set_boot_successful depends on CMOS parts that non-PC80 platforms do not have. For now, make the current path depend on CONFIG_PC80_SYSTEM, and make the alternative empty. Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Signed-off-by: Stefan Reinauer <reinauer@google.com> Change-Id: I68cf63367c8054d09a7a22303e7c04fb35ad0153 Reviewed-on: http://review.coreboot.org/1954 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
2012-11-30Make libgcc wrappers arch-specific, add ARMv7David Hendricks
Change-Id: Ia0bbd3bec6588219ce24951c0bcebefc6b6ec80e Signed-off-by: Stefan Reinauer <reinauer@google.com> Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/1940 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> 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>
2012-11-14Tell CBMEM code about ACPI GNVS sectionStefan Reinauer
We moved GNVS to it's own section, but forgot to tell the cbmem code about it. This is purely cosmetical, but add it anyways. Change-Id: Icb3788c0325ea79cc1efff4a876412d07da7936e Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1782 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-11-13Clean up stack checking codeStefan Reinauer
Several small improvements of the stack checking code: - move the CPU0 stack check right before jumping to the payload and out of hardwaremain (that file is too crowded anyways) - fix prototype in lib.h - print size of used stack - use checkstack function both on CPU0 and CPU1-x - print amount of stack used per core Signed-off-by: Stefan Reinauer <reinauer@google.com> Test: Boot coreboot on Link, see the following output: ... CPU1: stack: 00156000 - 00157000, lowest used address 00156c68, stack used: 920 bytes CPU2: stack: 00155000 - 00156000, lowest used address 00155c68, stack used: 920 bytes CPU3: stack: 00154000 - 00155000, lowest used address 00154c68, stack used: 920 bytes ... Jumping to boot code at 1110008 CPU0: stack: 00157000 - 00158000, lowest used address 00157af8, stack used: 1288 bytes Change-Id: I7b83eeee0186559a0a62daa12e3f7782990fd2df Reviewed-on: http://review.coreboot.org/1787 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-11-13Add method for delaying adding of timestampsStefan Reinauer
In hardwaremain() we can't add timestamps before we actually reinitialized the cbmem area. Hence we kept the timestamps in an array and added them later. This is ugly and intrusive and helped hiding a bug that prevented any timestamps to be logged in hardwaremain() when coming out of an S3 resume. The problem is solved by moving the logic to keep a few timestamps around into the timestamp code. This also gets rid of a lot of ugly ifdefs in hardwaremain.c Change-Id: I945fc4c77e990f620c18cbd054ccd87e746706ef Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1785 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-07-30USBDEBUG: retry harder for slow devicesSven Schnelle
Some usb debug devices don't respond fast enough. The linux kernel (which uses almost the same usbdebug code) added a bit more retry code, so let's copy that. Even if it might look stupid, i pass the DBG_LOOPS argument through all functions to keep the code at least a bit in sync with the linux kernel code. Change-Id: I7c4b63b8bf1d2270fd6b8c8aa835e2cb324820bd Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1375 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-07-26USBDEBUG: buffer up to 8 bytesSven Schnelle
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>
2012-07-24SMM: Add support for malloc in SMM if using TSEGDuncan Laurie
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>
2012-07-24Implement stack overflow checking for the BSPRonald G. Minnich
Previous patches implemented stack overflow checking for the APs. This patch builds on the BSP stack poisoning patch to implement stack overflow checking for the BSP, and also prints out maximum stack usage. It reveals that our 32K stack is ridiculously oversized, especially now that the lzma decoder doesn't use a giant 16K on-stack array. Break the stack checking out into a separate function, which we will later use for the APs. CPU0: stack from 00180000 to 00188000:Lowest stack address 00187ad8 To test failure, change the DEADBEEF stack poison value in c_start.S to something else. Then we should get an error like this: Stack overrun on BSP.Increase stack from current 32768 bytes CPU0: stack from 00180000 to 00188000:Lowest stack address 00180000 Separate the act of loading from the act of starting the payload. This allows us better error management and reporting of stack use. Now we see: CPU0: stack from 00180000 to 00188000:Lowest stack address 00187ad8 Tested for both success and failure on Link. At the same time, feel free to carefully check my manipulation of _estack. Change-Id: Ibb09738b15ec6a5510ac81e45dd82756bfa5aac2 Signed-off-by: Ronald G. Minnich <rminnich@chromium.org> Reviewed-on: http://review.coreboot.org/1286 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-07-24Shrink the stack sizes we need in corebootRonald G. Minnich
We accomplish this goal by getting rid of the huge auto array in the ram stage. This will in turn let us reduce CONFIG_STACK_SIZE. We have to leave it on the stack in CAR as that's the simple way to keep it private. It does not matter then as there is only one core that is active. Change-Id: Ie37a057ccae088b7f3bb4aab6de2713e64d96df6 Signed-off-by: Ronald G. Minnich <rminnich@chromium.org> Reviewed-on: http://review.coreboot.org/1271 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-07-24Remove unused free() functionStefan Reinauer
Since coreboot is running very short, we don't free memory. Hence, drop (dummy) free() Change-Id: I6e2737f07c6b9f73ebfad7d124b97a57cb7454a3 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1274 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-07-24malloc/memalign: Remove unneeded linker checkStefan Reinauer
This check got in the code when some Linux distros shipped broken linkers around 1999. Since then, the code around that check was changed, and it does not make sense anymore to have this check. Change-Id: I37c6b690d72f55c18ba4c34e8541a6a441e5e67a Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1275 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-07-24Make memalign print useful messages on failureRonald G. Minnich
Brevity is the soul of wit, except for error messages; then it's a sign of witlessness. I can say this because this error message may be my fault, although it is lost in the 20th century code base so who knows. Anyway, when memalign dies, it's not a bad idea to have a lot of information about what went wrong. So instead of the terse single bit of "something failed" this patch changes things to be a bit more useful. Change-Id: I8851502297e0ae9773912839ebfdf4f9574c8087 Signed-off-by: Ronald G. Minnich <rminnich@chromium.org> Reviewed-on: http://review.coreboot.org/1270 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2012-05-08Don't loop infinitely long on serial comm failuresStefan Reinauer
If serial uart (8250/16x50) takes abnormally long to respond, give up on logging to serial console and instead let the system boot. Also reference bit in LSR register with correct name. Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Ported from 9dd3ef165a1bf1bc404056d3e54337de1a15ac90 to uart8250mem.c: Signed-off-by: Stefan Reinauer <reinauer@google.com> Change-Id: Iaca4f57389c887110e6406d45053935891c96838 Reviewed-on: http://review.coreboot.org/826 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins) Reviewed-by: Peter Stuge <peter@stuge.se> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2012-05-04Make CBFS output more consistentStefan Reinauer
- Prefix all CBFS output messages with CBFS: - Add an option DEBUG_CBFS that is off by default. Without DEBUG_CBFS enabled, the code will no longer print all the files it walks for every file lookup. - Add DEBUG() macro next to LOG() and ERROR() to specify which messages should only be visible with DEBUG_CBFS printed. - Actually print a message when the file we're looking for was found. :) old: Searching for fallback/coreboot_ram Check cmos_layout.bin Check pci8086,0106.rom Check fallback/romstage Check fallback/coreboot_ram Change-Id: I2d731fae17a5f6ca51d435cfb7a58d6e017efa24 Stage: loading fallback/coreboot_ram @ 0x100000 (540672 bytes), entry @ 0x100000 Stage: done loading. new: CBFS: Looking for 'fallback/coreboot_ram' CBFS: found. CBFS: loading stage fallback/coreboot_ram @ 0x100000 (507904 bytes), entry @ 0x100000 CBFS: stage loaded. Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/993 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-05-03Tell CBMEM pretty printer about MRC cacheStefan Reinauer
Sandybridge memory initialization produces some amount of training data that has to be kept around in CBMEM. Add a descriptive name to the CBMEM pretty printer to prevent it from just printing the hex value. Change-Id: I587c0bc3dfcf389ba298d445d2594eef73bc69a8 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/990 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-04-16S3 code in coreboot public folder.zbao
1. Move the Stack to high memory. 2. Restore the MTRR before Coreboot jump to the wakeup vector. Change-Id: I9872e02fcd7eed98e7f630aa29ece810ac32d55a Signed-off-by: Zheng Bao <zheng.bao@amd.com> Signed-off-by: zbao <fishbaozi@gmail.com> Reviewed-on: http://review.coreboot.org/623 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
2012-04-12Add support for aligned allocationRon Minnich
Add a memalign function and have malloc use it. Also, change the default alignment for malloc to u64-aligned. Change-Id: I0788637008f5cb5ac801d8bbdc430ca992c98e81 Signed-off-by: Ron Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/887 Tested-by: build bot (Jenkins) Reviewed-by: Mathias Krause <minipli@googlemail.com>
2012-04-04Use fast memset in SMM mode, tooStefan Reinauer
... and always include IP checksumming in romstage. It's generally useful and our upcoming port needs it. Change-Id: I248402d96a23e58354744e053b9d5cca6b74ad3a Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/827 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-03-30Add native memset() function on x86Stefan Reinauer
Change-Id: Ia118ebe0a4b59bdcefd78895141a365170f6aed2 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/737 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2012-03-30Add faster, architecture dependent memcpy()Stefan Reinauer
Change-Id: I38d15f3f1ec65f0cb7974d2dd4ae6356433bddd8 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: http://review.coreboot.org/736 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2012-03-29Add infrastructure for global data in the CAR phase of bootGabe Black
The cbmem console structure and car global data are put in their own section, with the cbmem console coming after the global data. These areas are linked to be where CAR is available and at the very bottom of the stack. There is one shortcoming of this change: The section created by this change needs to be stripped out by the Makefile since leaving it in confuses cbfstool when it installs the stage in the image. I would like to make the tools link those symbols at the right location but leave allocation of that space out of the ELF. Change-Id: Iccfb99b128d59c5b7d6164796d21ba46d2a674e0 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: http://review.coreboot.org/727 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-03-29CBMEM CONSOLE: Enable coreboot CBMEM console.Vadim Bendebury
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>
2012-03-29CBMEM CONSOLE: Add CBMEM type for console buffer.Vadim Bendebury
Add CBMEM type for the console buffer section. Change-Id: I02757c06d71e46af77b02b90b0e6018a37b62406 Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: http://review.coreboot.org/720 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-03-29CBMEM CONSOLE: Add CBMEM console driver implementation.Vadim Bendebury
The CBMEM console driver saves console output in a CBMEM area, which then is made available to Linux applications for perusing. There are some system limitations which need to be worked around to achieve this goal: - some console traffic is generated before DRAM is initialized, leave alone CBMEM initialized. - after the RAM based stage starts, a lot of traffic is generated before CBMEM is initialized. As a result, the console log lives in three different places - the bottom of the cache as RAM space, the CBMEM buffer (where it is expected to be) and a static buffer used early in the RAM stage. When execution starts (in the cache as RAM mode), the console buffer is allocated at the bottom of the cache as RAM memory address range. Once DRAM is initialized, the CBMEM structure is initialized, and then the console buffer contents are copied from the bottom of the cache as RAM space into the CBMEM area right before the cache as RAM mode is disabled. The src/lib/cbmem_console.c:cbmemc_reinit() takes care of the copying. At this point the cache as RAM memory is about to be disabled, but the ROM stage is still going generating console output. To make sure this output is not lost, cbmemc_reinit() saves the new buffer address at a fixed location (0x600 was chosen for this), and the actual "printing" function checks to see if the RAM is already initialized (the stack is in RAM), and if so, gets the console buffer pointer from this location instead of using the cache as RAM address. When the RAM stage starts, a static buffer is used to store the console output, as the CBMEM buffer location is not known. Then, when CBMEM is reinitialized, cbmemc_reinit() again takes care of the copying. In case the allocated buffers are not large enough, the excessive data is dropped, and the copying routine adds some text to the output buffer to indicate that there has been data lost and how many characters were dropped. Change-Id: I8c126e31db6cb2141f7f4f97c5047f39a8db44fc Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: http://review.coreboot.org/719 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-03-28Include arch/acpi.h instead of manually adding acpi_slp_type.Stefan Reinauer
acpi_slp_type is defined in arch/acpi.h, so let's use that instead of manually spreading extern u8 acpi_slp_type throughout the code. Change-Id: Ia5eb420364c15ab5a764bc328bbd201ca9cb7837 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/714 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-03-28Add timestamp collecting to coreboot.Vadim Bendebury
This patch adds code to initialize the time stamp collection facility in coreboot. It adds a table in the CBMEM section, which provides the base timer reading value (all other readings are offsets of this one) and an array of timestamp id/timestamp value pairs. Just two values are being added now, this will have to be used more extensively and also integrated into payloads to provide more comprehensive boot process time measurements. Also, since the CBMEM area could already contain a section (from the previous run, before reset), when processing a section addition request we should check if a section already exists and return its address, if so. Change-Id: I7ed9f5c400bc5432f228348b41fd19a67c36d533 Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: http://review.coreboot.org/713 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2012-03-28Initialize CBMEM early.Vadim Bendebury
We want to be able to share data between different phases of firmware (rom stage/ram stage/payload). Coreboot CBMEM seems an appropriate location for this data, but normally it is not initialized until coreboot reaches the ram stage. This change initializes the CBMEM while still in rom stage in case CONFIG_EARLY_CBMEM_INIT is set. Note that there is a discrepancy in how coreboot determines the size of DRAM at rom and ram stages, get_top_of_ram() is used at rom stage and is not defined for all platforms. Those platforms will have to define this function should they enable the CONFIG_EARLY_CBMEM_INIT flag. Change-Id: I81691d45e28de59496fb227f2cca4e8c15ece717 Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: http://review.coreboot.org/711 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-03-25Replace ramtest pattern to assist in DIMM configurationKyösti Mälkki
This is developer's testtool. Output from a "rotate ones" -style pattern helps figure out how DIMM addresses are encoded or routed on a certain mainboard. Scattered test should cover every data and address lines on the memory bus, but is probably limited to the first bank of first DIMM. Change-Id: I533a7a873bcc434f99e7faed9dc9337d9ab64196 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> [pg: rebase] Reviewed-on: http://review.coreboot.org/294 Tested-by: build bot (Jenkins) Reviewed-by: Rudolf Marek <r.marek@assembler.cz>
2012-03-11malloc: size is unsigned, don't test for size < 0Patrick Georgi
clang complains Change-Id: Ifadf73cf377c0d1808e20731803e01101bad7e1d Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/780 Tested-by: build bot (Jenkins) Reviewed-by: Mathias Krause <minipli@googlemail.com>
2012-03-09Fix dependency problem for uart8250.c as wellStefan Reinauer
If you build in parallel, option_table.h will occasionally not be there yet and the build will fail. Change-Id: I828956ab2e05c48d20c2f7c55616cc8fa19e1227 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/698 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2012-03-09Fix compilation with CONFIG_USE_OPTION_TABLE enabledStefan Reinauer
Change-Id: I6c5d973442bc1770702180a8964f1bf6ed6062ed Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/696 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-03-09Add support for the Startech PEX1XS1PMINIStefan Reinauer
It has a smaller footprint than the already supported MPEX2S952 Change-Id: Ie36b67f9628882d516ca34ff164f0e8918955a5b Signed-off-by: Stefan Reinauer <reinauer@google.com> Tested-by: Stefan Reinauer <reinauer@google.com> Reviewed-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: http://review.coreboot.org/690 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-03-09Add an implementation for the memchr library functionGabe Black
Change-Id: Icded479d246f7cce8a3d2154c69f75178fa513e1 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: http://review.coreboot.org/708 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins) Reviewed-by: Mathias Krause <minipli@googlemail.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>
2012-02-17Remove whitespace.Patrick Georgi
Fix issues reported by new lint test. Change-Id: I077a829cb4a855cbb3b71b6eb5c66b2068be6def Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/646 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-02-07Don't loop infinitely long on serial comm failuresKyösti Mälkki
If serial uart (8250/16x50) takes abnormally long to respond, give up on logging to serial console and instead let the system boot. Also reference bit in LSR register with correct name. Change-Id: I3796efc3e8690425f04a130af4bc99541b64d335 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/611 Tested-by: build bot (Jenkins) Reviewed-by: Peter Stuge <peter@stuge.se>
2012-01-12lib: add ram_check_nodieSven Schnelle
The current implementation calls die() if memory checking fails. This isn't always what we want: one might want to print error registers, or do some other error handling. Introduce ram_check_nodie() for that reason. It returns 0 if ram check succeeded, otherwise 1. Change-Id: Ib9a9279120755cf63b5b3ba5e0646492c3c29ac2 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/532 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2011-11-02don't scan beyond end of CBFSFlorian Zumbiehl
Change-Id: I66e535f77e513dbfa5fc906ecf288193af78ae62 Signed-off-by: Florian Zumbiehl <florz@florz.de> Reviewed-on: http://review.coreboot.org/369 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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