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MycroftOS: Initial setup for rpi3

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This commit is contained in:
Peter Steenbergen
2018-10-26 19:51:01 +02:00
parent a6afd572f6
commit b68a2beb9e
28 changed files with 2203 additions and 1 deletions
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32
buildroot-external/board/raspberrypi/genimage-raspberrypi.cfg Normal file
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image boot.vfat {
vfat {
files = {
"bcm2708-rpi-b.dtb",
"bcm2708-rpi-b-plus.dtb",
"bcm2708-rpi-cm.dtb",
"rpi-firmware/bootcode.bin",
"rpi-firmware/cmdline.txt",
"rpi-firmware/config.txt",
"rpi-firmware/fixup.dat",
"rpi-firmware/start.elf",
"zImage"
}
}
size = 32M
}
image sdcard.img {
hdimage {
}
partition boot {
partition-type = 0xC
bootable = "true"
image = "boot.vfat"
}
partition rootfs {
partition-type = 0x83
image = "rootfs.ext4"
}
}

30
buildroot-external/board/raspberrypi/genimage-raspberrypi0.cfg Normal file
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image boot.vfat {
vfat {
files = {
"bcm2708-rpi-b-plus.dtb",
"rpi-firmware/bootcode.bin",
"rpi-firmware/cmdline.txt",
"rpi-firmware/config.txt",
"rpi-firmware/fixup.dat",
"rpi-firmware/start.elf",
"zImage"
}
}
size = 32M
}
image sdcard.img {
hdimage {
}
partition boot {
partition-type = 0xC
bootable = "true"
image = "boot.vfat"
}
partition rootfs {
partition-type = 0x83
image = "rootfs.ext4"
}
}

31
buildroot-external/board/raspberrypi/genimage-raspberrypi0w.cfg Normal file
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image boot.vfat {
vfat {
files = {
"bcm2708-rpi-0-w.dtb",
"rpi-firmware/bootcode.bin",
"rpi-firmware/cmdline.txt",
"rpi-firmware/config.txt",
"rpi-firmware/fixup.dat",
"rpi-firmware/start.elf",
"rpi-firmware/overlays",
"zImage"
}
}
size = 32M
}
image sdcard.img {
hdimage {
}
partition boot {
partition-type = 0xC
bootable = "true"
image = "boot.vfat"
}
partition rootfs {
partition-type = 0x83
image = "rootfs.ext4"
}
}

30
buildroot-external/board/raspberrypi/genimage-raspberrypi2.cfg Normal file
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image boot.vfat {
vfat {
files = {
"bcm2709-rpi-2-b.dtb",
"rpi-firmware/bootcode.bin",
"rpi-firmware/cmdline.txt",
"rpi-firmware/config.txt",
"rpi-firmware/fixup.dat",
"rpi-firmware/start.elf",
"zImage"
}
}
size = 32M
}
image sdcard.img {
hdimage {
}
partition boot {
partition-type = 0xC
bootable = "true"
image = "boot.vfat"
}
partition rootfs {
partition-type = 0x83
image = "rootfs.ext4"
}
}

31
buildroot-external/board/raspberrypi/genimage-raspberrypi3-64.cfg Normal file
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image boot.vfat {
vfat {
files = {
"bcm2710-rpi-3-b.dtb",
"bcm2837-rpi-3-b.dtb",
"rpi-firmware/bootcode.bin",
"rpi-firmware/cmdline.txt",
"rpi-firmware/config.txt",
"rpi-firmware/fixup.dat",
"rpi-firmware/start.elf",
"Image"
}
}
size = 32M
}
image sdcard.img {
hdimage {
}
partition boot {
partition-type = 0xC
bootable = "true"
image = "boot.vfat"
}
partition rootfs {
partition-type = 0x83
image = "rootfs.ext4"
}
}

33
buildroot-external/board/raspberrypi/genimage-raspberrypi3.cfg Normal file
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image boot.vfat {
vfat {
files = {
"bcm2710-rpi-3-b.dtb",
"bcm2710-rpi-3-b-plus.dtb",
"bcm2710-rpi-cm3.dtb",
"rpi-firmware/bootcode.bin",
"rpi-firmware/cmdline.txt",
"rpi-firmware/config.txt",
"rpi-firmware/fixup.dat",
"rpi-firmware/start.elf",
"rpi-firmware/overlays",
"zImage"
}
}
size = 32M
}
image sdcard.img {
hdimage {
}
partition boot {
partition-type = 0xC
bootable = "true"
image = "boot.vfat"
}
partition rootfs {
partition-type = 0x83
image = "rootfs.ext4"
}
}

11
buildroot-external/board/raspberrypi/post-build.sh Executable file
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#!/bin/sh
set -u
set -e
# Add a console on tty1
if [ -e ${TARGET_DIR}/etc/inittab ]; then
grep -qE '^tty1::' ${TARGET_DIR}/etc/inittab || \
sed -i '/GENERIC_SERIAL/a\
tty1::respawn:/sbin/getty -L tty1 0 vt100 # HDMI console' ${TARGET_DIR}/etc/inittab
fi

61
buildroot-external/board/raspberrypi/post-image.sh Executable file
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#!/bin/bash
set -e
BOARD_DIR="$(dirname $0)"
BOARD_NAME="$(basename ${BOARD_DIR})"
GENIMAGE_CFG="${BOARD_DIR}/genimage-${BOARD_NAME}.cfg"
GENIMAGE_TMP="${BUILD_DIR}/genimage.tmp"
for arg in "$@"
do
case "${arg}" in
--add-pi3-miniuart-bt-overlay)
if ! grep -qE '^dtoverlay=' "${BINARIES_DIR}/rpi-firmware/config.txt"; then
echo "Adding 'dtoverlay=pi3-miniuart-bt' to config.txt (fixes ttyAMA0 serial console)."
cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt"
# fixes rpi3 ttyAMA0 serial console
dtoverlay=pi3-miniuart-bt
__EOF__
fi
;;
--aarch64)
# Run a 64bits kernel (armv8)
sed -e '/^kernel=/s,=.*,=Image,' -i "${BINARIES_DIR}/rpi-firmware/config.txt"
if ! grep -qE '^arm_control=0x200' "${BINARIES_DIR}/rpi-firmware/config.txt"; then
cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt"
# enable 64bits support
arm_control=0x200
__EOF__
fi
# Enable uart console
if ! grep -qE '^enable_uart=1' "${BINARIES_DIR}/rpi-firmware/config.txt"; then
cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt"
# enable rpi3 ttyS0 serial console
enable_uart=1
__EOF__
fi
;;
--gpu_mem_256=*|--gpu_mem_512=*|--gpu_mem_1024=*)
# Set GPU memory
gpu_mem="${arg:2}"
sed -e "/^${gpu_mem%=*}=/s,=.*,=${gpu_mem##*=}," -i "${BINARIES_DIR}/rpi-firmware/config.txt"
;;
esac
done
rm -rf "${GENIMAGE_TMP}"
genimage \
--rootpath "${TARGET_DIR}" \
--tmppath "${GENIMAGE_TMP}" \
--inputpath "${BINARIES_DIR}" \
--outputpath "${BINARIES_DIR}" \
--config "${GENIMAGE_CFG}"
exit $?

93
buildroot-external/board/raspberrypi/readme.txt Normal file
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Raspberry Pi
Intro
=====
These instructions apply to all models of the Raspberry Pi:
- the original models A and B,
- the "enhanced" models A+ and B+,
- the model B2 (aka Raspberry Pi 2)
- the model B3 (aka Raspberry Pi 3).
How to build it
===============
Configure Buildroot
-------------------
There are two RaspberryPi defconfig files in Buildroot, one for each
major variant, which you should base your work on:
For models A, B, A+ or B+:
$ make raspberrypi_defconfig
For model Zero (model A+ in smaller form factor):
$ make raspberrypi0_defconfig
For model 2 B:
$ make raspberrypi2_defconfig
For model 3 B and B+:
$ make raspberrypi3_defconfig
Build the rootfs
----------------
Note: you will need to have access to the network, since Buildroot will
download the packages' sources.
You may now build your rootfs with:
$ make
(This may take a while, consider getting yourself a coffee ;-) )
Result of the build
-------------------
After building, you should obtain this tree:
output/images/
+-- bcm2708-rpi-b.dtb [1]
+-- bcm2708-rpi-b-plus.dtb [1]
+-- bcm2709-rpi-2-b.dtb [1]
+-- bcm2710-rpi-3-b.dtb [1]
+-- bcm2710-rpi-3-b-plus.dtb [1]
+-- boot.vfat
+-- rootfs.ext4
+-- rpi-firmware/
| +-- bootcode.bin
| +-- cmdline.txt
| +-- config.txt
| +-- fixup.dat
| +-- start.elf
| `-- overlays/ [2]
+-- sdcard.img
`-- zImage
[1] Not all of them will be present, depending on the RaspberryPi
model you are using.
[2] Only for the Raspberry Pi 3 Model (overlay pi3-miniuart-bt is needed
to enable the RPi3 serial console otherwise occupied by the bluetooth
chip). Alternative would be to disable the serial console in cmdline.txt
and /etc/inittab.
How to write the SD card
========================
Once the build process is finished you will have an image called "sdcard.img"
in the output/images/ directory.
Copy the bootable "sdcard.img" onto an SD card with "dd":
$ sudo dd if=output/images/sdcard.img of=/dev/sdX
Insert the SDcard into your Raspberry Pi, and power it up. Your new system
should come up now and start two consoles: one on the serial port on
the P1 header, one on the HDMI output where you can login using a USB
keyboard.