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DESCRIPTION = "Linux Kernel for Raspberry Pi"
SECTION = "kernel"
LICENSE = "GPLv2"
LIC_FILES_CHKSUM = "file://COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
COMPATIBLE_MACHINE = "^rpi$"
PE = "1"
PV = "${LINUX_VERSION}+git${SRCPV}"
inherit kernel siteinfo
require recipes-kernel/linux/linux-yocto.inc
SRC_URI += " \
file://rpi-kernel-misc.cfg \
${@bb.utils.contains("INITRAMFS_IMAGE_BUNDLE", "1", "file://initramfs-image-bundle.cfg", "", d)} \
${@bb.utils.contains("MACHINE_FEATURES", "vc4graphics", "file://vc4graphics.cfg", "", d)} \
"
KCONFIG_MODE = "--alldefconfig"
KBUILD_DEFCONFIG_raspberrypi0-wifi ?= "bcmrpi_defconfig"
KBUILD_DEFCONFIG_raspberrypi ?= "bcmrpi_defconfig"
KBUILD_DEFCONFIG_raspberrypi-cm3 ?= "bcm2709_defconfig"
KBUILD_DEFCONFIG_raspberrypi2 ?= "bcm2709_defconfig"
KBUILD_DEFCONFIG_raspberrypi3 ?= "bcm2709_defconfig"
KBUILD_DEFCONFIG_raspberrypi3-64 ?= "bcmrpi3_defconfig"
KBUILD_DEFCONFIG_raspberrypi4 ?= "bcm2711_defconfig"
KBUILD_DEFCONFIG_raspberrypi4-64 ?= "bcm2711_defconfig"
LINUX_VERSION_EXTENSION ?= ""
# CMDLINE for raspberrypi
SERIAL = "${@oe.utils.conditional("ENABLE_UART", "1", "console=serial0,115200", "", d)}"
CMA ?= "${@oe.utils.conditional("RASPBERRYPI_CAMERA_V2", "1", "cma=64M", "", d)}"
CMDLINE ?= "dwc_otg.lpm_enable=0 ${SERIAL} root=/dev/mmcblk0p2 rootfstype=ext4 rootwait ${CMA}"
# Add the kernel debugger over console kernel command line option if enabled
CMDLINE_append = ' ${@oe.utils.conditional("ENABLE_KGDB", "1", "kgdboc=serial0,115200", "", d)}'
# Disable rpi logo on boot
CMDLINE_append = ' ${@oe.utils.conditional("DISABLE_RPI_BOOT_LOGO", "1", "logo.nologo", "", d)}'
# You can define CMDLINE_DEBUG as "debug" in your local.conf or distro.conf
# to enable kernel debugging.
CMDLINE_DEBUG ?= ""
CMDLINE_append = " ${CMDLINE_DEBUG}"
KERNEL_MODULE_AUTOLOAD += "${@bb.utils.contains("MACHINE_FEATURES", "pitft28r", "stmpe-ts", "", d)}"
# A LOADADDR is needed when building a uImage format kernel. This value is not
# set by default in rpi-4.8.y and later branches so we need to provide it
# manually. This value unused if KERNEL_IMAGETYPE is not uImage.
KERNEL_EXTRA_ARGS += "LOADADDR=0x00008000"
do_compile_append() {
if [ "${SITEINFO_BITS}" = "64" ]; then
cc_extra=$(get_cc_option)
oe_runmake dtbs CC="${KERNEL_CC} $cc_extra " LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS}
fi
}
do_deploy_append() {
# Deploy cmdline.txt only for the main kernel package
if [ ${KERNEL_PACKAGE_NAME} = "kernel" ]; then
install -d ${DEPLOYDIR}/${BOOTFILES_DIR_NAME}
PITFT="${@bb.utils.contains("MACHINE_FEATURES", "pitft", "1", "0", d)}"
if [ ${PITFT} = "1" ]; then
PITFT_PARAMS="fbcon=map:10 fbcon=font:VGA8x8"
fi
echo "${CMDLINE}${PITFT_PARAMS}" > ${DEPLOYDIR}/${BOOTFILES_DIR_NAME}/cmdline.txt
fi
}
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