traspberry-pi4.sh - arm-sdk - os build toolkit for various embedded devices
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       traspberry-pi4.sh (2951B)
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            1 #!/usr/bin/env zsh
            2 # Copyright (c) 2016-2021 Ivan J. <parazyd@dyne.org>
            3 # This file is part of arm-sdk
            4 #
            5 # This source code is free software: you can redistribute it and/or modify
            6 # it under the terms of the GNU General Public License as published by
            7 # the Free Software Foundation, either version 3 of the License, or
            8 # (at your option) any later version.
            9 #
           10 # This software is distributed in the hope that it will be useful,
           11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
           12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
           13 # GNU General Public License for more details.
           14 #
           15 # You should have received a copy of the GNU General Public License
           16 # along with this source code. If not, see <http://www.gnu.org/licenses/>.
           17 
           18 ## kernel build script for Raspberry Pi 4 boards
           19 
           20 ## settings & config
           21 vars+=(device_name arch size parted_type parted_boot parted_root bootfs inittab)
           22 vars+=(gitkernel gitbranch rpifirmware)
           23 arrs+=(custmodules)
           24 
           25 device_name="raspi4"
           26 arch="arm64"
           27 size=1891
           28 inittab=("T0:23:respawn:/sbin/agetty -L ttyAMA0 115200 vt100")
           29 
           30 parted_type="dos"
           31 bootfs="vfat"
           32 rootfs="ext4"
           33 dos_boot="fat32 2048s 264191s"
           34 dos_root="$rootfs 264192s 100%"
           35 
           36 extra_packages+=()
           37 custmodules=(snd_bcm2835)
           38 
           39 gitkernel="https://github.com/raspberrypi/linux"
           40 gitbranch="rpi-4.19.y"
           41 rpifirmware="https://github.com/raspberrypi/firmware.git"
           42 
           43 
           44 prebuild() {
           45         fn prebuild
           46         req=(device_name strapdir)
           47         ckreq || return 1
           48 
           49         notice "executing $device_name prebuild"
           50 
           51         mkdir -p $R/tmp/kernels/$device_name
           52 }
           53 
           54 postbuild() {
           55         fn postbuild
           56 
           57         notice "executing $device_name postbuild"
           58 
           59         copy-root-overlay
           60         postbuild-clean
           61 }
           62 
           63 build_kernel_arm64() {
           64         fn build_kernel_armhf
           65         req=(R arch device_name gitkernel gitbranch rpifirmware)
           66         req+=(strapdir)
           67         ckreq || return 1
           68 
           69         notice "building $arch kernel"
           70 
           71         prebuild || zerr
           72 
           73         get-kernel-sources || zerr
           74         pushd $R/tmp/kernels/$device_name/${device_name}-linux
           75                 # pi4 defconfig
           76                 make \
           77                         $MAKEOPTS \
           78                         ARCH=arm64 \
           79                         CROSS_COMPILE=$compiler \
           80                                 bcm2711_defconfig || zerr
           81 
           82                 # compile kernel and modules
           83                 make \
           84                         $MAKEOPTS \
           85                         ARCH=arm64 \
           86                         CROSS_COMPILE=$compiler || zerr
           87 
           88                 # install kernel modules
           89                 sudo -E PATH="$PATH" \
           90                         make \
           91                                 $MAKEOPTS \
           92                                 ARCH=arm64 \
           93                                 CROSS_COMPILE=$compiler \
           94                                 INSTALL_MOD_PATH=$strapdir \
           95                                         modules_install || zerr
           96         popd
           97 
           98         clone-git "$rpifirmware" "$R/tmp/kernels/$device_name/${device_name}-firmware"
           99         sudo cp -rf  $R/tmp/kernels/$device_name/${device_name}-firmware/boot/* $strapdir/boot/
          100 
          101         pushd $R/tmp/kernels/$device_name/${device_name}-linux
          102         #        sudo perl scripts/mkknlimg --dtok arch/arm64/boot/Image.gz $strapdir/boot/kernel8.img
          103                 sudo cp arch/arm64/boot/Image                 $strapdir/boot/kernel8.img
          104                 sudo cp arch/arm64/boot/dts/broadcom/bcm*.dtb $strapdir/boot/
          105                 sudo cp arch/arm64/boot/dts/overlays/*.dtbo   $strapdir/boot/overlays/
          106                 sudo cp arch/arm64/boot/dts/overlays/README   $strapdir/boot/overlays/
          107         popd
          108 
          109         postbuild || zerr
          110 }