1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
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
KCONFIG_MODE = "--alldefconfig"
KBUILD_DEFCONFIG_raspberrypi0-wifi ?= "bcmrpi_defconfig"
KBUILD_DEFCONFIG_raspberrypi ?= "bcmrpi_defconfig"
KBUILD_DEFCONFIG_raspberrypi2 ?= "bcm2709_defconfig"
KBUILD_DEFCONFIG_raspberrypi3 ?= "bcm2709_defconfig"
KBUILD_DEFCONFIG_raspberrypi3-64 ?= "bcmrpi3_defconfig"
# CMDLINE for raspberrypi
CMDLINE ?= "dwc_otg.lpm_enable=0 console=serial0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait"
# Add the kernel debugger over console kernel command line option if enabled
CMDLINE_append = ' ${@base_conditional("ENABLE_KGDB", "1", "kgdboc=serial0,115200", "", d)}'
# Disable rpi logo on boot
CMDLINE_append += ' ${@base_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 = " ${CMDLINE_DEBUG}"
# Quirk for udev greater or equal 141
UDEV_GE_141 ?= "1"
# Enable OABI compat for people stuck with obsolete userspace
ARM_KEEP_OABI ?= "1"
KERNEL_INITRAMFS ?= '${@base_conditional("INITRAMFS_IMAGE_BUNDLE", "1", "1", "", d)}'
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"
# 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" >> ${B}/.config
else
echo "CONFIG_$1=$2" >> ${B}/.config
fi
}
do_configure_prepend() {
mv -f ${B}/.config ${B}/.config.patched
CONF_SED_SCRIPT=""
# oabi / eabi support
kernel_configure_variable AEABI y
if [ "${ARM_KEEP_OABI}" = "1" ] ; then
kernel_configure_variable OABI_COMPAT y
else
kernel_configure_variable OABI_COMPAT n
fi
# 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
if [ ! -z "${KERNEL_INITRAMFS}" ]; then
kernel_configure_variable BLK_DEV_INITRD y
kernel_configure_variable INITRAMFS_SOURCE ""
kernel_configure_variable RD_GZIP y
kernel_configure_variable OVERLAY_FS y
kernel_configure_variable SQUASHFS y
kernel_configure_variable UBIFS_FS y
fi
# Activate CONFIG_LEGACY_PTYS
kernel_configure_variable LEGACY_PTYS y
# this module is built externally via drbd-utils
kernel_configure_variable BLK_DEV_DRBD n
# Activate the configuration options for VC4
VC4GRAPHICS="${@bb.utils.contains("MACHINE_FEATURES", "vc4graphics", "1", "0", d)}"
if [ ${VC4GRAPHICS} = "1" ]; then
kernel_configure_variable I2C_BCM2835 y
kernel_configure_variable DRM y
kernel_configure_variable DRM_FBDEV_EMULATION y
kernel_configure_variable DRM_VC4 y
fi
# Keep this the last line
# Remove all modified configs and add the rest to .config
sed -e "${CONF_SED_SCRIPT}" < '${B}/.config.patched' >> '${B}/.config'
rm -f ${B}/.config.patched
yes '' | oe_runmake oldconfig
}
do_compile_append_raspberrypi3-64() {
cc_extra=$(get_cc_option)
oe_runmake dtbs CC="${KERNEL_CC} $cc_extra " LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS}
}
do_install_prepend() {
install -d ${D}${nonarch_base_libdir}/firmware
}
do_deploy_append() {
# Deploy cmdline.txt
install -d ${DEPLOYDIR}/bcm2835-bootfiles
PITFT="${@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}/bcm2835-bootfiles/cmdline.txt
}
|
