raspberrypi0_defconfig

BR2_arm=y
BR2_arm1176jzf_s=y
BR2_ARM_EABIHF=y

# Linux headers same as kernel, a 5.10 series
BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_10=y

BR2_TOOLCHAIN_BUILDROOT_CXX=y

BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,raspberrypi,linux,0b54dbda3cca2beb51e236a25738784e90853b64)/linux-0b54dbda3cca2beb51e236a25738784e90853b64.tar.gz"
BR2_LINUX_KERNEL_DEFCONFIG="bcmrpi"

# Build the DTBs for A/B from the kernel sources: the zero is the same
# as the A+ model, just in a different form-factor
BR2_LINUX_KERNEL_DTS_SUPPORT=y
BR2_LINUX_KERNEL_INTREE_DTS_NAME="bcm2708-rpi-zero"

BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y

BR2_PACKAGE_RPI_FIRMWARE=y
BR2_PACKAGE_RPI_FIRMWARE_BOOTCODE_BIN=y
BR2_PACKAGE_RPI_FIRMWARE_VARIANT_PI=y
BR2_PACKAGE_RPI_FIRMWARE_CONFIG_FILE="board/raspberrypi0/config_default.txt"
# BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTB_OVERLAYS is not set

# Required tools to create the SD image
BR2_PACKAGE_HOST_DOSFSTOOLS=y
BR2_PACKAGE_HOST_GENIMAGE=y
BR2_PACKAGE_HOST_MTOOLS=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/raspberrypi0/post-build.sh"
BR2_ROOTFS_POST_IMAGE_SCRIPT="board/raspberrypi0/post-image.sh"