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Diffstat (limited to 'meta-rcar-gen2/recipes-kernel/linux/linux.inc')
| -rw-r--r-- | meta-rcar-gen2/recipes-kernel/linux/linux.inc | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux.inc b/meta-rcar-gen2/recipes-kernel/linux/linux.inc new file mode 100644 index 0000000..a265ee8 --- /dev/null +++ b/meta-rcar-gen2/recipes-kernel/linux/linux.inc @@ -0,0 +1,139 @@ +DESCRIPTION = "Linux Kernel" +SECTION = "kernel" +LICENSE = "GPLv2" + +LIC_FILES_CHKSUM = "file://COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7" + +inherit kernel siteinfo + +# Enable OABI compat for people stuck with obsolete userspace +ARM_KEEP_OABI ?= "1" + +# Quirk for udev greater or equal 141 +UDEV_GE_141 ?= "1" + +# Set the verbosity of kernel messages during runtime +# You can define CMDLINE_DEBUG in your local.conf or distro.conf to override this behaviour +CMDLINE_DEBUG ?= '${@base_conditional("DISTRO_TYPE", "release", "quiet", "debug", d)}' +CMDLINE_append = " ${CMDLINE_DEBUG}" + +# Set a variable in .configure +# $1 - Configure variable to be set +# $2 - value [n/y/value] +kernel_configure_variable() { + # Remove the config + CONF_SED_SCRIPT="$CONF_SED_SCRIPT /CONFIG_$1[ =]/d;" + if test "$2" = "n" + then + echo "# CONFIG_$1 is not set" >> ${S}/.config + else + echo "CONFIG_$1=$2" >> ${S}/.config + fi +} + +do_configure_prepend() { + # Clean .config + echo "" > ${S}/.config + CONF_SED_SCRIPT="" + + # oabi / eabi support + if [ "${TARGET_OS}" = "linux-gnueabi" -o "${TARGET_OS}" = "linux-uclibceabi" ]; then + kernel_configure_variable AEABI y + if [ "${ARM_KEEP_OABI}" = "1" ] ; then + kernel_configure_variable OABI_COMPAT y + else + kernel_configure_variable OABI_COMPAT n + fi + else + kernel_configure_variable AEABI n + kernel_configure_variable OABI_COMPAT n + fi + + # Set cmdline + kernel_configure_variable CMDLINE "\"${CMDLINE}\"" + + # Localversion + kernel_configure_variable LOCALVERSION "\"\"" + kernel_configure_variable LOCALVERSION_AUTO n + + # Udev quirks + # Newer versions of udev mandate that sysfs doesn't have deprecated entries + if [ "${UDEV_GE_141}" = "1" ] ; then + kernel_configure_variable SYSFS_DEPRECATED n + kernel_configure_variable SYSFS_DEPRECATED_V2 n + kernel_configure_variable HOTPLUG y + kernel_configure_variable UEVENT_HELPER_PATH "\"\"" + kernel_configure_variable UNIX y + kernel_configure_variable SYSFS y + kernel_configure_variable PROC_FS y + kernel_configure_variable TMPFS y + kernel_configure_variable INOTIFY_USER y + kernel_configure_variable SIGNALFD y + kernel_configure_variable TMPFS_POSIX_ACL y + kernel_configure_variable BLK_DEV_BSG y + kernel_configure_variable DEVTMPFS y + kernel_configure_variable DEVTMPFS_MOUNT y + fi + + # Newer inits like systemd need cgroup support + if [ "${KERNEL_ENABLE_CGROUPS}" = "1" ] ; then + kernel_configure_variable CGROUP_SCHED y + kernel_configure_variable CGROUPS y + kernel_configure_variable CGROUP_NS y + kernel_configure_variable CGROUP_FREEZER y + kernel_configure_variable CGROUP_DEVICE y + kernel_configure_variable CPUSETS y + kernel_configure_variable PROC_PID_CPUSET y + kernel_configure_variable CGROUP_CPUACCT y + kernel_configure_variable RESOURCE_COUNTERS y + fi + + # root-over-nfs-over-usb-eth support. Limited, but should cover some cases + # Enable this by setting a proper CMDLINE_NFSROOT_USB. + if [ ! -z "${CMDLINE_NFSROOT_USB}" ]; then + oenote "Configuring the kernel for root-over-nfs-over-usb-eth with CMDLINE ${CMDLINE_NFSROOT_USB}" + kernel_configure_variable INET y + kernel_configure_variable IP_PNP y + kernel_configure_variable USB_GADGET y + kernel_configure_variable USB_GADGET_SELECTED y + kernel_configure_variable USB_ETH y + kernel_configure_variable NFS_FS y + kernel_configure_variable ROOT_NFS y + kernel_configure_variable ROOT_NFS y + kernel_configure_variable CMDLINE "\"${CMDLINE_NFSROOT_USB}\"" + fi + + # Activate CONFIG_LEGACY_PTYS + kernel_configure_variable LEGACY_PTYS y + + # Keep this the last line + # Remove all modified configs and add the rest to .config + sed -e "${CONF_SED_SCRIPT}" < '${WORKDIR}/defconfig' >> '${S}/.config' + + yes '' | oe_runmake oldconfig +} + +do_configure_append_porter() { + # Enable CAN + kernel_configure_variable CAN y + kernel_configure_variable CAN_RCAR y + + yes '' | oe_runmake oldconfig +} + +# Automatically depend on lzop-native if CONFIG_KERNEL_LZO is enabled +python () { + try: + defconfig = bb.fetch2.localpath('file://defconfig', d) + except bb.fetch2.FetchError: + return + + try: + configfile = open(defconfig) + except IOError: + return + + if 'CONFIG_KERNEL_LZO=y\n' in configfile.readlines(): + depends = d.getVar('DEPENDS', False) + d.setVar('DEPENDS', depends + ' lzop-native') +} |