buildroot/configs/raspberrypicm4io_64_defconfig
Peter Seiderer 689b9ac439 package/rpi-firmware: rework boot/config file handling
Try to be less smart (focused on the one target/one use-case),
instead reduce the rpi-firmware package to a selectable list
of (verbatim) installed firmware files.

- change rpi-firmware config handling from rpi-variant/rpi-flavour
  choices to bootcode.bin, pi-default/-extended/-cut-down and
  pi4-/default/-extended/-cut-down selection

- add BR2_PACKAGE_RPI_FIRMWARE_CONFIG_FILE option to select installable
  config.txt file

- remove config.txt modify code/handling from raspberry post-image.sh
  script

- add different customized config.txt files to the raspberry board
  section

- change dtoverlay krnbt from 'dtoverlay=miniuart-bt,krnbt=on' to extra line
  with explanation comment

- change raspberry defconfigs to select appropiate rpi-firmware
  and config.txt files

- change genimage-raspberrypi4.cfg/genimage-raspberrypi4-64.cfg to
  use start4.elf and fixup4.dat

- update board/raspberrypi/readme.txt (add optional files fixup4.dat,
  start4.elf and zImage)

With this changes a better support for custom use-cases should
be possible, specially multi-target SD cards as suggested by
Stefan Agner ([1]).

[1] http://lists.busybox.net/pipermail/buildroot/2021-February/303318.html

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
[yann.morin.1998@free.fr: fix case of no config.txt provided]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
2021-10-17 22:11:41 +02:00

42 lines
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BR2_aarch64=y
BR2_cortex_a72=y
BR2_ARM_FPU_VFPV4=y
BR2_TOOLCHAIN_BUILDROOT_CXX=y
BR2_SYSTEM_DHCP="eth0"
# Linux headers same as kernel, a 5.10 series
BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_10=y
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,raspberrypi,linux,24c8b0546a820222a1ebcfe606dfacb0e228c466)/linux-24c8b0546a820222a1ebcfe606dfacb0e228c466.tar.gz"
BR2_LINUX_KERNEL_DEFCONFIG="bcm2711"
# Build the DTB from the kernel sources
BR2_LINUX_KERNEL_DTS_SUPPORT=y
BR2_LINUX_KERNEL_INTREE_DTS_NAME="broadcom/bcm2711-rpi-cm4"
BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
BR2_PACKAGE_RPI_FIRMWARE=y
BR2_PACKAGE_RPI_FIRMWARE_VARIANT_PI4=y
BR2_PACKAGE_RPI_FIRMWARE_CONFIG_FILE="board/raspberrypicm4io-64/config_cm4io_64bit.txt"
# Required tools to create the SD image
BR2_PACKAGE_HOST_DOSFSTOOLS=y
BR2_PACKAGE_HOST_GENIMAGE=y
BR2_PACKAGE_HOST_MTOOLS=y
# Required tool to flash CM4 eMMC memory
BR2_PACKAGE_HOST_RASPBERRYPI_USBBOOT=y
# Filesystem / image
BR2_TARGET_ROOTFS_EXT2=y
BR2_TARGET_ROOTFS_EXT2_4=y
BR2_TARGET_ROOTFS_EXT2_SIZE="120M"
# BR2_TARGET_ROOTFS_TAR is not set
BR2_ROOTFS_POST_BUILD_SCRIPT="board/raspberrypicm4io-64/post-build.sh"
BR2_ROOTFS_POST_IMAGE_SCRIPT="board/raspberrypicm4io-64/post-image.sh"