# Copyright (C) 2022 LingYun IoT System Studio
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# Released under the GPLv2 license
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#
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# SPDX-License-Identifier: GPLv2
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#
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SUMMARY = "Linux Kernel provided and supported by LingYun IoT System Studio"
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DESCRIPTION = "Linux Kernel provided and supported by LingYun with focus on IGKBoard"
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LICENSE = "GPLv2"
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LIC_FILES_CHKSUM = "file://${COREBASE}/meta/files/common-licenses/GPL-2.0-only;md5=801f80980d171dd6425610833a22dbe6"
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require recipes-kernel/linux/linux-yocto.inc
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# base: meta-imx/meta-bsp/recipes-kernel/linux/linux-imx_5.10.bb
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# https://source.codeaurora.org/external/imx/linux-imx/tag/?h=lf-5.10.52-2.1.0
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SRCREV = "a11753a89ec610768301d4070e10b8bd60fde8cd"
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LOCALVERSION = "-lf-5.10.52-2.1.0"
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LINUX_VERSION = "5.10.52"
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KERNEL_DANGLING_FEATURES_WARN_ONLY = "1"
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FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
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SRC_URI += " file://linux-imx-lf-5.10.52-2.1.0.patch \
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file://config-lcd.txt \
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file://config-nolcd.txt \
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"
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PATCHTOOL = "patch"
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do_copy_defconfig_append() {
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cp ${S}/arch/arm/configs/igkboard_defconfig ${WORKDIR}/defconfig
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cp ${S}/arch/arm/configs/igkboard_defconfig ${B}/.config
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}
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KERNEL_DTC_FLAGS = "-@"
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KERNEL_DEVICETREE2 ?= ""
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KERNEL_DEVICETREE2:igkboard = " \
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overlays/cam.dtbo \
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overlays/can1.dtbo \
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overlays/can2.dtbo \
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overlays/i2c1.dtbo \
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overlays/lcd.dtbo \
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overlays/nbiot-4g.dtbo \
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overlays/pwm7.dtbo \
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overlays/pwm8.dtbo \
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overlays/spi1.dtbo \
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overlays/uart2.dtbo \
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overlays/uart3.dtbo \
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overlays/uart4.dtbo \
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overlays/uart7.dtbo \
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overlays/w1.dtbo \
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"
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# compile dtbo file, refer to: poky/meta/classes/kernel-devicetree.bbclass
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do_compile:append() {
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if [ -n "${KERNEL_DTC_FLAGS}" ]; then
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export DTC_FLAGS="${KERNEL_DTC_FLAGS}"
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fi
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for dtbf in ${KERNEL_DEVICETREE2}; do
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dtb=`normalize_dtb "$dtbf"`
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oe_runmake $dtb CC="${KERNEL_CC} $cc_extra " LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS}
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done
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}
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# install to linux kernel package
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FILES:${KERNEL_PACKAGE_NAME}-devicetree += "/${KERNEL_IMAGEDEST}/overlays/*.dtbo"
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do_install:append() {
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for dtbf in ${KERNEL_DEVICETREE2}; do
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dtb=`normalize_dtb "$dtbf"`
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install -d ${D}/${KERNEL_IMAGEDEST}/overlays
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install -m 0644 ${B}/arch/arm/boot/dts/$dtb ${D}/${KERNEL_IMAGEDEST}/$dtb
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done
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install -m 0644 ${WORKDIR}/config-lcd.txt ${D}/${KERNEL_IMAGEDEST}/
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install -m 0644 ${WORKDIR}/config-nolcd.txt ${D}/${KERNEL_IMAGEDEST}/
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}
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# install to deploy images path
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do_deploy:append(){
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for dtbf in ${KERNEL_DEVICETREE2}; do
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dtb=`normalize_dtb "$dtbf"`
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install -d ${deployDir}/overlays
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install -m 0644 ${B}/arch/arm/boot/dts/$dtb ${deployDir}/$dtb
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done
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install -m 0644 ${WORKDIR}/config-lcd.txt ${deployDir}/
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install -m 0644 ${WORKDIR}/config-nolcd.txt ${deployDir}/
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}
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