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2021-01-07arch/x86: Move prologue to .init sectionKyösti Mälkki
For arch/x86 the realmode part has to be located within the same 64 KiB as the reset vector. Some older intel platforms also require 4 KiB alignment for _start16bit. To enforce the above, and to separate required parts of .text without matching *(.text.*) rules in linker scripts, tag the pre-C environment assembly code with section .init directive. Description of .init section for ELF: This section holds executable instructions that contribute to the process initialization code. When a program starts to run, the system arranges to execute the code in this section before calling the main program entry point (called main for C programs). Change-Id: If32518b1c19d08935727330314904b52a246af3c Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47599 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-12-10drivers/intel/fsp1_1/cache_as_ram.S: Correct commentFrans Hendriks
Stack is set up for bootblock. Tested on Facebook FBG1701. Change-Id: I0dd3fc91c90bf76e0d93925da35dc197d68d3e88 Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47802 Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-11-22drivers/intel/fsp1_1: Add function to report FSP-T outputFrans Hendriks
This allows to compare the FSP-T output in %ecx and %edx to coreboot's CAR symbols. Tested on Facebook FBG1701 Change-Id: Ice748e542180f6e1dc1505e7f37b6b6c68772bda Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47758 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-11-22src/drivers/intel/fsp1_1/cache_as_ram.S: Clear _bss area onlyFrans Hendriks
Whole car region is cleared, while only small part needs to be done. Clear .bss area only Tested on Facebook FBG1701 Change-Id: I021c2f7d3531c553015fde98d155915f897b434d Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47760 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-11-20drivers/intel/fsp1_1/cache_as_ram.S: Use _car_stack area for stackFrans Hendriks
Top of Temp RAM is used as bootloader stack, which is the _car_region_end area. This area is not equal to CAR stack area as defined in car.ld file. Use _ecar_stack (end of CAR stack) as starting stack location. Tested VBOOT, Vendorboot security and no security on Facebook FBG1701. Change-Id: I16b077f60560de334361b1f0d3758ab1a5cbe895 Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47737 Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com> Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com> Reviewed-by: Christian Walter <christian.walter@9elements.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-11treewide: Remove "this file is part of" linesPatrick Georgi
Stefan thinks they don't add value. Command used: sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool) The exceptions are for: - crossgcc (patch file) - gcov (imported from gcc) - elf.h (imported from GNU's libc) - nvramtool (more complicated header) The removed lines are: - fmt.Fprintln(f, "/* This file is part of the coreboot project. */") -# This file is part of a set of unofficial pre-commit hooks available -/* This file is part of coreboot */ -# This file is part of msrtool. -/* This file is part of msrtool. */ - * This file is part of ncurses, designed to be appended after curses.h.in -/* This file is part of pgtblgen. */ - * This file is part of the coreboot project. - /* This file is part of the coreboot project. */ -# This file is part of the coreboot project. -# This file is part of the coreboot project. -## This file is part of the coreboot project. --- This file is part of the coreboot project. -/* This file is part of the coreboot project */ -/* This file is part of the coreboot project. */ -;## This file is part of the coreboot project. -# This file is part of the coreboot project. It originated in the - * This file is part of the coreinfo project. -## This file is part of the coreinfo project. - * This file is part of the depthcharge project. -/* This file is part of the depthcharge project. */ -/* This file is part of the ectool project. */ - * This file is part of the GNU C Library. - * This file is part of the libpayload project. -## This file is part of the libpayload project. -/* This file is part of the Linux kernel. */ -## This file is part of the superiotool project. -/* This file is part of the superiotool project */ -/* This file is part of uio_usbdebug */ Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-04-06src/drivers: Use SPDX for GPL-2.0-only filesAngel Pons
Done with sed and God Lines. Only done for C-like code for now. Change-Id: I38eaffa391ed5971217ffad74a312b1641e431c9 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40051 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-11-10drivers/intel/fsp1_1: Fake microcode update to make FSP happyArthur Heymans
The FSP loops through microcode updates and at the end checks if the microcode revision is not zero. Since we update the microcode before loading FSP, this is the case and a fake microcode can be passed to the FSP. The advantage is that the Kconfig symbols to specify the location and the size of the microcode blob can be dropped. Change-Id: I63cfb7b19e9795da85566733fb4c1ff989e85d03 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36255 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-11-10soc/intel/braswell: Update microcode before FSPArthur Heymans
The google FSP Braswell version has broken microcode update code and FSP checks at some point if the installed microcode version is non zero, so coreboot has to update it before calling FSP-T. This is fixed with newer FSP releases by Intel, but doing updates in coreboot won't hurt. Tested with both Intel FSP and google FSP. Change-Id: I3e81329854e823dc66fec191adbed617bb37d649 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36198 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-10-22AUTHORS: Move src/drivers/[a*-i*] copyrights into AUTHORS fileMartin Roth
As discussed on the mailing list and voted upon, the coreboot project is going to move the majority of copyrights out of the headers and into an AUTHORS file. This will happen a bit at a time, as we'll be unifying license headers at the same time. Updated Authors file is in a separate commit. Signed-off-by: Martin Roth <martin@coreboot.org> Change-Id: I1acea8c975d14904b7e486dc57a1a67480a6ee6e Reviewed-on: https://review.coreboot.org/c/coreboot/+/36178 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-06-12{drivers,soc/intel/braswell}: Implement C_ENVIRONMENT_BOOTBLOCK supportFrans Hendriks
No C_ENVIRONMENT_BOOTBLOCK support for Braswell is available. Enable support and add required files for the Braswell Bootblock in C. The next changes are made support C_ENVIRONMENT_BOOTBLOCK: - Add car_stage_entry() function bootblock-c_entry() functions. - Specify config DCACHE_BSP_STACK_SIZE and C_ENV_BOOTBLOCK_SIZE. - Add bootblock_c_entry(). - Move init from car_soc_XXX_console_init() to bootblock_soc_XXX_Init() Removed the unused cache_as_ram_main() and weak car_XXX_XXX_console_init() BUG=NA TEST=Booting Embedded Linux on Facebook FBG-1701 Building Google Banos Change-Id: Iab48ad72f1514c93f20d70db5ef4fd8fa2383e8c Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/29662 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>