diff options
Diffstat (limited to 'recipes-kernel/linux/linux-toradex_5.4-2.1.x.bb')
| -rw-r--r-- | recipes-kernel/linux/linux-toradex_5.4-2.1.x.bb | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/recipes-kernel/linux/linux-toradex_5.4-2.1.x.bb b/recipes-kernel/linux/linux-toradex_5.4-2.1.x.bb index 7a2f5e3..fc22b5f 100644 --- a/recipes-kernel/linux/linux-toradex_5.4-2.1.x.bb +++ b/recipes-kernel/linux/linux-toradex_5.4-2.1.x.bb @@ -2,6 +2,7 @@ FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}-${PV}:" require recipes-kernel/linux/linux-imx.inc SUMMARY = "Linux kernel for Toradex Freescale i.MX based modules" +SUMMARY_append_preempt-rt = "Real-Time Linux kernel for Toradex Freescale i.MX based modules" LIC_FILES_CHKSUM = "file://COPYING;md5=bbea815ee2795b2f4230826c0c6b8814" @@ -38,3 +39,32 @@ SRCREV_use-head-next = "${AUTOREV}" DEPENDS += "lzop-native bc-native" COMPATIBLE_MACHINE = "(mx6|mx7|mx8)" + +############################################################################### +# Apply the RT patch and change the configuration to use PREMPT_RT when the +# preempt-rt override is set. +############################################################################### + +# patches get moved into the 'older' directory when superseeded, so provide +# both possible storage locations. +MIRRORS_append_preempt-rt = "${KERNELORG_MIRROR}/linux/kernel/projects/rt/5.4/older/ ${KERNELORG_MIRROR}/linux/kernel/projects/rt/5.4/" +SRC_URI_append_preempt-rt = " \ + ${KERNELORG_MIRROR}/linux/kernel/projects/rt/5.4/older/patch-5.4.47-rt28.patch.xz;name=rt-patch \ +" +# This patches do currently not apply but are likely needed or we get +# runtime bugs. +# file://0001-imx_sc_thermal-prevent-BUG-with-rt-patch.patch \ +# file://0002-ddr-perf-prevent-BUG-with-rt-patch.patch \ +# + +SRC_URI[rt-patch.md5sum] = "032a1eee60e746fe32a3aa73604bc3e4" +SRC_URI[rt-patch.sha256sum] = "dadc1379e816e8a23f09713884f8889f0177f291974487f33efc9a646082c562" + +kernel_do_configure_append_preempt-rt() { + # switch to use PREEMPT_RT + kernel_configure_variable PREEMPT_NONE n + kernel_configure_variable PREEMPT_VOLUNTARY n + kernel_configure_variable PREEMPT n + kernel_configure_variable PREEMPT_RT y + oe_runmake olddefconfig +} |