traspberry-pi1.sh - arm-sdk - os build toolkit for various embedded devices
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traspberry-pi1.sh (3641B)
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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 1 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="raspi1"
26 arch="armel"
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.git"
40 gitbranch="rpi-4.14.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
61 notice "downloading broadcom firmware for bt/wifi"
62 sudo mkdir -p $strapdir/lib/firmware/brcm
63 # https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/brcm
64 sudo wget -q -O "$strapdir/lib/firmware/brcm/brcmfmac43430-sdio.bin" \
65 https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/brcm/brcmfmac43430-sdio.bin
66
67 postbuild-clean
68 }
69
70 build_kernel_armel() {
71 fn build_kernel_armel
72 req=(R arch device_name gitkernel gitbranch rpifirmware)
73 req+=(strapdir)
74 ckreq || return 1
75
76 notice "building $arch kernel"
77
78 prebuild || zerr
79
80 get-kernel-sources || zerr
81 pushd $R/tmp/kernels/$device_name/${device_name}-linux
82 # pi1 defconfig
83 make \
84 $MAKEOPTS \
85 ARCH=arm \
86 CROSS_COMPILE=$compiler \
87 bcmrpi_defconfig || zerr
88
89 # compile kernel and modules
90 make \
91 $MAKEOPTS \
92 ARCH=arm \
93 CROSS_COMPILE=$compiler || zerr
94
95 # install kernel modules
96 sudo -E PATH="$PATH" \
97 make \
98 $MAKEOPTS \
99 ARCH=arm \
100 CROSS_COMPILE=$compiler \
101 INSTALL_MOD_PATH=$strapdir \
102 modules_install || zerr
103 popd
104
105 clone-git "$rpifirmware" "$R/tmp/kernels/$device_name/${device_name}-firmware"
106 sudo cp $R/tmp/kernels/$device_name/${device_name}-firmware/boot/bootcode.bin "$strapdir/boot/"
107 sudo cp $R/tmp/kernels/$device_name/${device_name}-firmware/boot/fixup* "$strapdir/boot/"
108 sudo cp $R/tmp/kernels/$device_name/${device_name}-firmware/boot/start* "$strapdir/boot/"
109 sudo cp $R/tmp/kernels/$device_name/${device_name}-firmware/boot/COPYING.linux "$strapdir/boot/"
110 sudo cp $R/tmp/kernels/$device_name/${device_name}-firmware/boot/LICENCE.broadcom "$strapdir/boot/"
111
112 pushd $R/tmp/kernels/$device_name/${device_name}-linux
113 sudo perl scripts/mkknlimg --dtok arch/arm/boot/zImage $strapdir/boot/kernel.img
114 sudo cp arch/arm/boot/dts/bcm*.dtb $strapdir/boot/
115 sudo cp arch/arm/boot/dts/overlays/*.dtbo $strapdir/boot/overlays/
116 sudo cp arch/arm/boot/dts/overlays/README $strapdir/boot/overlays/
117 popd
118
119 postbuild || zerr
120 }