diff options
author | Paul Fagerburg <pfagerburg@chromium.org> | 2019-08-23 11:22:14 -0600 |
---|---|---|
committer | Patrick Georgi <pgeorgi@google.com> | 2019-09-19 09:37:12 +0000 |
commit | b4eb02aa8b9e7c479e8cb104197afd326c36f974 (patch) | |
tree | d539bc7cb26cf28ecd0e1c7b5a06525526464dcf | |
parent | db7906a57902e4a2a582308f0e2834d335c85805 (diff) | |
download | coreboot-b4eb02aa8b9e7c479e8cb104197afd326c36f974.tar.gz |
hatch: automate creating a new variant in coreboot
To create a new variant of the hatch baseboard, we need to
add the variant's GBB_HWID and other information to Kconfig
and Kconfig.name, and set up a skeletal build based on the
hatch baseboard.
BUG=b:140261109
BRANCH=none
TEST=``./create_coreboot_variant.sh sushi && git show``
Kconfig will have three new lines for the SUSHI variant, and
Kconfig.name will have an entirely new section.
New files created are:
variants/sushi/Makefile.inc
variants/sushi/overridetree.cb
variants/sushi/include/ec.h
variants/sushi/include/gpio.h
variants/sushi/include/variant/acpi/dptf.asl
Also run the script with an existing board name to verify that you
can't create a variant that already exists.
Change-Id: I1a5b9c8735faafebb2e4e384cb3346867d64c556
Signed-off-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35239
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
7 files changed, 305 insertions, 0 deletions
diff --git a/util/mainboard/google/hatch/create_coreboot_variant.sh b/util/mainboard/google/hatch/create_coreboot_variant.sh new file mode 100755 index 0000000000..32720ca54e --- /dev/null +++ b/util/mainboard/google/hatch/create_coreboot_variant.sh @@ -0,0 +1,78 @@ +#!/bin/bash +# +# This file is part of the coreboot project. +# +# Copyright 2019 Google LLC. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; version 2 of the License. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +if [[ "$#" -ne 1 ]]; then + echo "Usage: $0 variant_name" + echo "e.g. $0 kohaku" + echo "Adds a new variant of Hatch to Kconfig and Kconfig.name, creates the" + echo "skeleton files for acpi, ec, and gpio, copies the makefile for" + echo "SPD sources, and sets up a basic overridetree" + exit 1 +fi + +# Note that this script is specific to Hatch, and so it does not allow +# you to specify the baseboard as one of the cmdline arguments. +# +# This is the name of the base board that we're cloning to make the variant. +base="hatch" +# This is the name of the variant that is being cloned +# ${var,,} converts to all lowercase +variant="${1,,}" + +# This script and the templates live in util/mainboard/google/hatch +# We need to create files in src/mainboard/google/hatch +pushd "${BASH_SOURCE%/*}" || exit +SRC=$(pwd) +popd || exit +pushd "${SRC}/../../../../src/mainboard/google/${base}" || { + echo "The baseboard directory for ${base} does not exist."; + exit; } + +# Make sure the variant doesn't already exist +if [[ -e variants/${variant} ]]; then + echo "variants/${variant} already exists." + echo "Have you already created this variant?" + popd || exit + exit 2 +fi + +# Start a branch. Use YMD timestamp to avoid collisions. +DATE=$(date +%Y%m%d) +git checkout -b "create_${variant}_${DATE}" + +# Copy the template tree to the target +cp -r "${SRC}/template/*" "variants/${variant}/" +git add "variants/${variant}/" + +# Now add the new variant to Kconfig and Kconfig.name +# These files are in the current directory, e.g. src/mainboard/google/hatch +"${SRC}/kconfig.py" --name "${variant}" + +mv Kconfig.new Kconfig +mv Kconfig.name.new Kconfig.name + +git add Kconfig Kconfig.name + +# Now commit the files +git commit -sm "${base}: Create ${variant} variant + +BUG=none +TEST=util/abuild/abuild -p none -t google/${base} -x -a +make sure the build includes GOOGLE_${variant^^}" + +popd || exit + +echo "Please check all the files (git show), make any changes you want," +echo "and then push to coreboot HEAD:refs/for/master" diff --git a/util/mainboard/google/hatch/kconfig.py b/util/mainboard/google/hatch/kconfig.py new file mode 100755 index 0000000000..8b54b75c51 --- /dev/null +++ b/util/mainboard/google/hatch/kconfig.py @@ -0,0 +1,156 @@ +#!/usr/bin/python3 +"""Add a new variant to the Kconfig and Kconfig.name for the baseboard + +To start a new variant of an existing baseboard, we need to add +the variant into the Kconfig and Kconfig.name files for the +baseboard. In Kconfig, we have three sections that need additional +entries, GBB_HWID, MAINBOARD_PART_NUMBER, and VARIANT_DIR. + +In GBB_HWID, we need to add a HWID that includes a numeric suffix. +The numeric suffix is the CRC-32 of the all-caps ASCII name, +modulo 10000. +For example, if the board name is "Fizz", we calculate the CRC of +"FIZZ TEST", which is 0x598C492D. In decimal, the value is 1502365997, +modulo 10000 is 5997. So the HWID string is "FIZZ TEST 5997" +In the past, we have used an online CRC-32 calculator such as +https://www.lammertbies.nl/comm/info/crc-calculation.html, and then +used the calculator app to convert to decimal and take the last +4 digits. + +The MAINBOARD_PART_NUMBER and VARIANT_DIR are simpler, just using +various capitalizations of the variant name to create the strings. + +Kconfig.name adds an entire section for the new variant, and all +of these use various capitalizations of the variant name. The strings +in this section are SOC-specific, so we'll need versions for each +SOC that we support. + +Copyright 2019 Google LLC. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; version 2 of the License. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. +""" + +import argparse +import zlib + + +def main(): + parser = argparse.ArgumentParser( + description="Add strings to coreboot Kconfig for a new board variant") + parser.add_argument('--name', type=str, required=True, + help='Name of the board variant') + args = parser.parse_args() + + add_to_Kconfig(args.name) + add_to_Kconfig_name(args.name) + + +def get_gbb_hwid(variant_name): + """Create the GBB_HWID for a variant + + variant_name The name of the board variant, e.g. 'kohaku' + + Returns: + GBB_HWID string for the board variant, e.g. 'KOHAKU TEST 1953' + + Note that the case of the variant name does not matter; it gets + converted to all uppercase as part of this function.""" + hwid = variant_name + ' test' + upperhwid = hwid.upper() + suffix = zlib.crc32(upperhwid.encode('UTF-8')) % 10000 + gbb_hwid = upperhwid + ' ' + str(suffix).zfill(4) + return gbb_hwid + + +def add_to_Kconfig(variant_name): + """Add options for the variant to the Kconfig + + Open the Kconfig file and read it line-by-line. When we detect that we're + in one of the sections of interest, wait until we get a blank line + (signalling the end of that section), and then add our new line before + the blank line. The updated lines are written out to Kconfig.new in the + same directory as Kconfig. + + variant_name The name of the board variant, e.g. 'kohaku'""" + # These are the part of the strings that we'll add to the sections + BOARD = 'BOARD_GOOGLE_' + variant_name.upper() + gbb_hwid = get_gbb_hwid(variant_name) + lowercase = variant_name.lower() + capitalized = lowercase.capitalize() + + # These flags track whether we're in a section where we need to add an option + in_gbb_hwid = False + in_mainboard_part_number = False + in_variant_dir = False + + inputname = 'Kconfig' + outputname = 'Kconfig.new' + with open(outputname, 'w') as outfile: + with open(inputname, 'r') as infile: + for rawline in infile: + line = rawline.rstrip('\r\n') + + # Are we in one of the sections of interest? + if line == 'config GBB_HWID': + in_gbb_hwid = True + if line == 'config MAINBOARD_PART_NUMBER': + in_mainboard_part_number = True + if line == 'config VARIANT_DIR': + in_variant_dir = True + + # Are we at the end of a section, and if so, is it one of the + # sections of interest? + if line == '': + if in_gbb_hwid: + print('\tdefault "' + gbb_hwid + '" if ' + BOARD, file=outfile) + in_gbb_hwid = False + if in_mainboard_part_number: + print('\tdefault "' + capitalized + '" if ' + BOARD, file=outfile) + in_mainboard_part_number = False + if in_variant_dir: + print('\tdefault "' + lowercase + '" if ' + BOARD, file=outfile) + in_variant_dir = False + + print(line, file=outfile) + + +def add_to_Kconfig_name(variant_name): + """Add a config section for the variant to the Kconfig.name + + Kconfig.name is easier to modify than Kconfig; it only has a block at + the end with the new variant's details. + + config BOARD_GOOGLE_${VARIANT} + + variant_name The name of the board variant, e.g. 'kohaku'""" + # Board name for the config section + uppercase = variant_name.upper() + BOARD = 'BOARD_GOOGLE_' + uppercase + capitalized = variant_name.lower().capitalize() + + inputname = 'Kconfig.name' + outputname = 'Kconfig.name.new' + with open(outputname, 'w') as outfile: + with open(inputname, 'r') as infile: + # Copy all input lines to output + for rawline in infile: + line = rawline.rstrip('\r\n') + print(line, file=outfile) + + # Now add the new section + print('\nconfig ' + BOARD, file=outfile) + print('\tbool "-> ' + capitalized + '"', file=outfile) + print('\tselect BOARD_GOOGLE_BASEBOARD_HATCH', file=outfile) + print('\tselect BOARD_ROMSIZE_KB_16384', file=outfile) + print('\tselect SOC_INTEL_COMETLAKE', file=outfile) + + +if __name__ == '__main__': + main() diff --git a/util/mainboard/google/hatch/template/Makefile.inc b/util/mainboard/google/hatch/template/Makefile.inc new file mode 100644 index 0000000000..38cf728d8f --- /dev/null +++ b/util/mainboard/google/hatch/template/Makefile.inc @@ -0,0 +1,13 @@ +## This file is part of the coreboot project. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; version 2 of the License. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## + +SPD_SOURCES = diff --git a/util/mainboard/google/hatch/template/include/variant/acpi/dptf.asl b/util/mainboard/google/hatch/template/include/variant/acpi/dptf.asl new file mode 100644 index 0000000000..496334daab --- /dev/null +++ b/util/mainboard/google/hatch/template/include/variant/acpi/dptf.asl @@ -0,0 +1,14 @@ +/* + * This file is part of the coreboot project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <baseboard/acpi/dptf.asl> diff --git a/util/mainboard/google/hatch/template/include/variant/ec.h b/util/mainboard/google/hatch/template/include/variant/ec.h new file mode 100644 index 0000000000..25269627bd --- /dev/null +++ b/util/mainboard/google/hatch/template/include/variant/ec.h @@ -0,0 +1,19 @@ +/* + * This file is part of the coreboot project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef VARIANT_EC_H +#define VARIANT_EC_H + +#include <baseboard/ec.h> + +#endif diff --git a/util/mainboard/google/hatch/template/include/variant/gpio.h b/util/mainboard/google/hatch/template/include/variant/gpio.h new file mode 100644 index 0000000000..1322233ad0 --- /dev/null +++ b/util/mainboard/google/hatch/template/include/variant/gpio.h @@ -0,0 +1,19 @@ +/* + * This file is part of the coreboot project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the + * GNU General Public License for more details. + */ + +#ifndef VARIANT_GPIO_H +#define VARIANT_GPIO_H + +#include <baseboard/gpio.h> + +#endif diff --git a/util/mainboard/google/hatch/template/overridetree.cb b/util/mainboard/google/hatch/template/overridetree.cb new file mode 100644 index 0000000000..abbcaaa08c --- /dev/null +++ b/util/mainboard/google/hatch/template/overridetree.cb @@ -0,0 +1,6 @@ +chip soc/intel/cannonlake + + device domain 0 on + end + +end |