blob: d3447689a08ca7c83e16abed25581d54d96f2498 [file] [log] [blame]
Patrick Williams8b8bc412016-08-17 15:02:23 -05001inherit image_types
Patrick Williams8b8bc412016-08-17 15:02:23 -05002
3#
Brad Bishop316dfdd2018-06-25 12:45:53 -04004# Create an image that can be written onto a SD card using dd.
Patrick Williams8b8bc412016-08-17 15:02:23 -05005#
6# The disk layout used is:
7#
8# 0 -> IMAGE_ROOTFS_ALIGNMENT - reserved for other data
9# IMAGE_ROOTFS_ALIGNMENT -> BOOT_SPACE - bootloader and kernel
10# BOOT_SPACE -> SDIMG_SIZE - rootfs
11#
12
13# Default Free space = 1.3x
14# Use IMAGE_OVERHEAD_FACTOR to add more space
15# <--------->
16# 4MiB 40MiB SDIMG_ROOTFS
17# <-----------------------> <----------> <---------------------->
18# ------------------------ ------------ ------------------------
19# | IMAGE_ROOTFS_ALIGNMENT | BOOT_SPACE | ROOTFS_SIZE |
20# ------------------------ ------------ ------------------------
21# ^ ^ ^ ^
22# | | | |
23# 0 4MiB 4MiB + 40MiB 4MiB + 40Mib + SDIMG_ROOTFS
24
25# This image depends on the rootfs image
26IMAGE_TYPEDEP_rpi-sdimg = "${SDIMG_ROOTFS_TYPE}"
27
28# Set kernel and boot loader
29IMAGE_BOOTLOADER ?= "bcm2835-bootfiles"
30
Patrick Williams8b8bc412016-08-17 15:02:23 -050031# Kernel image name
32SDIMG_KERNELIMAGE_raspberrypi ?= "kernel.img"
33SDIMG_KERNELIMAGE_raspberrypi2 ?= "kernel7.img"
Brad Bishop3a5fbf52017-12-04 02:17:07 -050034SDIMG_KERNELIMAGE_raspberrypi3-64 ?= "kernel8.img"
Patrick Williams8b8bc412016-08-17 15:02:23 -050035
36# Boot partition volume id
37BOOTDD_VOLUME_ID ?= "${MACHINE}"
38
39# Boot partition size [in KiB] (will be rounded up to IMAGE_ROOTFS_ALIGNMENT)
40BOOT_SPACE ?= "40960"
41
42# Set alignment to 4MB [in KiB]
43IMAGE_ROOTFS_ALIGNMENT = "4096"
44
45# Use an uncompressed ext3 by default as rootfs
46SDIMG_ROOTFS_TYPE ?= "ext3"
Brad Bishopd7bf8c12018-02-25 22:55:05 -050047SDIMG_ROOTFS = "${IMGDEPLOYDIR}/${IMAGE_LINK_NAME}.${SDIMG_ROOTFS_TYPE}"
Patrick Williams8b8bc412016-08-17 15:02:23 -050048
Brad Bishop1a4b7ee2018-12-16 17:11:34 -080049# For the names of kernel artifacts
50inherit kernel-artifact-names
51
Brad Bishopd7bf8c12018-02-25 22:55:05 -050052do_image_rpi_sdimg[depends] = " \
Brad Bishopf27bdd52018-05-07 15:42:31 +020053 parted-native:do_populate_sysroot \
54 mtools-native:do_populate_sysroot \
55 dosfstools-native:do_populate_sysroot \
56 virtual/kernel:do_deploy \
57 ${IMAGE_BOOTLOADER}:do_deploy \
Brad Bishopf76da502019-10-10 08:51:21 -040058 rpi-config:do_deploy \
Brad Bishop26bdd442019-08-16 17:08:17 -040059 ${@bb.utils.contains('MACHINE_FEATURES', 'armstub', 'armstubs:do_deploy', '' ,d)} \
Brad Bishopf27bdd52018-05-07 15:42:31 +020060 ${@bb.utils.contains('RPI_USE_U_BOOT', '1', 'u-boot:do_deploy', '',d)} \
61 ${@bb.utils.contains('RPI_USE_U_BOOT', '1', 'rpi-u-boot-scr:do_deploy', '',d)} \
62"
Patrick Williams8b8bc412016-08-17 15:02:23 -050063
Brad Bishop316dfdd2018-06-25 12:45:53 -040064do_image_rpi_sdimg[recrdeps] = "do_build"
65
Patrick Williams8b8bc412016-08-17 15:02:23 -050066# SD card image name
Patrick Williamsb2e6a9b2017-02-23 20:31:26 -060067SDIMG = "${IMGDEPLOYDIR}/${IMAGE_NAME}.rootfs.rpi-sdimg"
Patrick Williams8b8bc412016-08-17 15:02:23 -050068
Patrick Williams8b8bc412016-08-17 15:02:23 -050069# Additional files and/or directories to be copied into the vfat partition from the IMAGE_ROOTFS.
70FATPAYLOAD ?= ""
71
Brad Bishop6e60e8b2018-02-01 10:27:11 -050072# SD card vfat partition image name
Brad Bishop1a4b7ee2018-12-16 17:11:34 -080073SDIMG_VFAT_DEPLOY ?= "${RPI_USE_U_BOOT}"
Brad Bishop6e60e8b2018-02-01 10:27:11 -050074SDIMG_VFAT = "${IMAGE_NAME}.vfat"
75SDIMG_LINK_VFAT = "${IMGDEPLOYDIR}/${IMAGE_LINK_NAME}.vfat"
76
Brad Bishopd7bf8c12018-02-25 22:55:05 -050077def split_overlays(d, out, ver=None):
78 dts = d.getVar("KERNEL_DEVICETREE")
Brad Bishopf27bdd52018-05-07 15:42:31 +020079 # Device Tree Overlays are assumed to be suffixed by '-overlay.dtb' (4.1.x) or by '.dtbo' (4.4.9+) string and will be put in a dedicated folder
Brad Bishopd7bf8c12018-02-25 22:55:05 -050080 if out:
81 overlays = oe.utils.str_filter_out('\S+\-overlay\.dtb$', dts, d)
82 overlays = oe.utils.str_filter_out('\S+\.dtbo$', overlays, d)
83 else:
84 overlays = oe.utils.str_filter('\S+\-overlay\.dtb$', dts, d) + \
85 " " + oe.utils.str_filter('\S+\.dtbo$', dts, d)
86
87 return overlays
88
Patrick Williams8b8bc412016-08-17 15:02:23 -050089IMAGE_CMD_rpi-sdimg () {
90
Brad Bishopf27bdd52018-05-07 15:42:31 +020091 # Align partitions
92 BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE} + ${IMAGE_ROOTFS_ALIGNMENT} - 1)
93 BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE_ALIGNED} - ${BOOT_SPACE_ALIGNED} % ${IMAGE_ROOTFS_ALIGNMENT})
94 SDIMG_SIZE=$(expr ${IMAGE_ROOTFS_ALIGNMENT} + ${BOOT_SPACE_ALIGNED} + $ROOTFS_SIZE)
Patrick Williams8b8bc412016-08-17 15:02:23 -050095
Brad Bishopf27bdd52018-05-07 15:42:31 +020096 echo "Creating filesystem with Boot partition ${BOOT_SPACE_ALIGNED} KiB and RootFS $ROOTFS_SIZE KiB"
Patrick Williams8b8bc412016-08-17 15:02:23 -050097
Brad Bishopf27bdd52018-05-07 15:42:31 +020098 # Check if we are building with device tree support
99 DTS="${KERNEL_DEVICETREE}"
Patrick Williams8b8bc412016-08-17 15:02:23 -0500100
Brad Bishopf27bdd52018-05-07 15:42:31 +0200101 # Initialize sdcard image file
102 dd if=/dev/zero of=${SDIMG} bs=1024 count=0 seek=${SDIMG_SIZE}
Patrick Williams8b8bc412016-08-17 15:02:23 -0500103
Brad Bishopf27bdd52018-05-07 15:42:31 +0200104 # Create partition table
105 parted -s ${SDIMG} mklabel msdos
106 # Create boot partition and mark it as bootable
107 parted -s ${SDIMG} unit KiB mkpart primary fat32 ${IMAGE_ROOTFS_ALIGNMENT} $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ROOTFS_ALIGNMENT})
108 parted -s ${SDIMG} set 1 boot on
109 # Create rootfs partition to the end of disk
110 parted -s ${SDIMG} -- unit KiB mkpart primary ext2 $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ROOTFS_ALIGNMENT}) -1s
111 parted ${SDIMG} print
Patrick Williams8b8bc412016-08-17 15:02:23 -0500112
Brad Bishopf27bdd52018-05-07 15:42:31 +0200113 # Create a vfat image with boot files
114 BOOT_BLOCKS=$(LC_ALL=C parted -s ${SDIMG} unit b print | awk '/ 1 / { print substr($4, 1, length($4 -1)) / 512 /2 }')
115 rm -f ${WORKDIR}/boot.img
Andrew Geissler1c349142019-02-19 19:49:56 -0600116 mkfs.vfat -F32 -n "${BOOTDD_VOLUME_ID}" -S 512 -C ${WORKDIR}/boot.img $BOOT_BLOCKS
Brad Bishop26bdd442019-08-16 17:08:17 -0400117 mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/bcm2835-bootfiles/* ::/ || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/bcm2835-bootfiles/* into boot.img"
118 if [ "${@bb.utils.contains("MACHINE_FEATURES", "armstub", "1", "0", d)}" = "1" ]; then
119 mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/armstubs/${ARMSTUB} ::/ || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/armstubs/${ARMSTUB} into boot.img"
120 fi
Brad Bishopf27bdd52018-05-07 15:42:31 +0200121 if test -n "${DTS}"; then
122 # Copy board device trees to root folder
123 for dtbf in ${@split_overlays(d, True)}; do
124 dtb=`basename $dtbf`
Brad Bishop26bdd442019-08-16 17:08:17 -0400125 mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/$dtb ::$dtb || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/$dtb into boot.img"
Brad Bishopf27bdd52018-05-07 15:42:31 +0200126 done
Patrick Williams8b8bc412016-08-17 15:02:23 -0500127
Brad Bishopf27bdd52018-05-07 15:42:31 +0200128 # Copy device tree overlays to dedicated folder
129 mmd -i ${WORKDIR}/boot.img overlays
130 for dtbf in ${@split_overlays(d, False)}; do
131 dtb=`basename $dtbf`
Brad Bishop26bdd442019-08-16 17:08:17 -0400132 mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/$dtb ::overlays/$dtb || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/$dtb into boot.img"
Brad Bishopf27bdd52018-05-07 15:42:31 +0200133 done
134 fi
135 if [ "${RPI_USE_U_BOOT}" = "1" ]; then
Brad Bishop26bdd442019-08-16 17:08:17 -0400136 mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/u-boot.bin ::${SDIMG_KERNELIMAGE} || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/u-boot.bin into boot.img"
137 mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/boot.scr ::boot.scr || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/boot.scr into boot.img"
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800138 if [ ! -z "${INITRAMFS_IMAGE}" -a "${INITRAMFS_IMAGE_BUNDLE}" = "1" ]; then
Brad Bishop26bdd442019-08-16 17:08:17 -0400139 mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${INITRAMFS_LINK_NAME}.bin ::${KERNEL_IMAGETYPE} || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${INITRAMFS_LINK_NAME}.bin into boot.img"
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800140 else
Brad Bishop26bdd442019-08-16 17:08:17 -0400141 mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE} ::${KERNEL_IMAGETYPE} || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE} into boot.img"
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800142 fi
Brad Bishopf27bdd52018-05-07 15:42:31 +0200143 else
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800144 if [ ! -z "${INITRAMFS_IMAGE}" -a "${INITRAMFS_IMAGE_BUNDLE}" = "1" ]; then
Brad Bishop26bdd442019-08-16 17:08:17 -0400145 mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${INITRAMFS_LINK_NAME}.bin ::${SDIMG_KERNELIMAGE} || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${INITRAMFS_LINK_NAME}.bin into boot.img"
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800146 else
Brad Bishop26bdd442019-08-16 17:08:17 -0400147 mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE} ::${SDIMG_KERNELIMAGE} || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE} into boot.img"
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800148 fi
Brad Bishopf27bdd52018-05-07 15:42:31 +0200149 fi
Patrick Williams8b8bc412016-08-17 15:02:23 -0500150
Brad Bishop15ae2502019-06-18 21:44:24 -0400151 if [ -n "${FATPAYLOAD}" ] ; then
Brad Bishopf27bdd52018-05-07 15:42:31 +0200152 echo "Copying payload into VFAT"
153 for entry in ${FATPAYLOAD} ; do
Brad Bishop26bdd442019-08-16 17:08:17 -0400154 # use bbwarn instead of bbfatal to stop aborting on vfat issues like not supporting .~lock files
155 mcopy -v -i ${WORKDIR}/boot.img -s ${IMAGE_ROOTFS}$entry :: || bbwarn "mcopy cannot copy ${IMAGE_ROOTFS}$entry into boot.img"
Brad Bishopf27bdd52018-05-07 15:42:31 +0200156 done
157 fi
Patrick Williams8b8bc412016-08-17 15:02:23 -0500158
Brad Bishopf27bdd52018-05-07 15:42:31 +0200159 # Add stamp file
160 echo "${IMAGE_NAME}" > ${WORKDIR}/image-version-info
Brad Bishop26bdd442019-08-16 17:08:17 -0400161 mcopy -v -i ${WORKDIR}/boot.img ${WORKDIR}/image-version-info :: || bbfatal "mcopy cannot copy ${WORKDIR}/image-version-info into boot.img"
Patrick Williams8b8bc412016-08-17 15:02:23 -0500162
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800163 # Deploy vfat partition
164 if [ "${SDIMG_VFAT_DEPLOY}" = "1" ]; then
Brad Bishopf27bdd52018-05-07 15:42:31 +0200165 cp ${WORKDIR}/boot.img ${IMGDEPLOYDIR}/${SDIMG_VFAT}
166 ln -sf ${SDIMG_VFAT} ${SDIMG_LINK_VFAT}
167 fi
Patrick Williams8b8bc412016-08-17 15:02:23 -0500168
Brad Bishopf27bdd52018-05-07 15:42:31 +0200169 # Burn Partitions
170 dd if=${WORKDIR}/boot.img of=${SDIMG} conv=notrunc seek=1 bs=$(expr ${IMAGE_ROOTFS_ALIGNMENT} \* 1024)
171 # If SDIMG_ROOTFS_TYPE is a .xz file use xzcat
172 if echo "${SDIMG_ROOTFS_TYPE}" | egrep -q "*\.xz"
173 then
174 xzcat ${SDIMG_ROOTFS} | dd of=${SDIMG} conv=notrunc seek=1 bs=$(expr 1024 \* ${BOOT_SPACE_ALIGNED} + ${IMAGE_ROOTFS_ALIGNMENT} \* 1024)
175 else
176 dd if=${SDIMG_ROOTFS} of=${SDIMG} conv=notrunc seek=1 bs=$(expr 1024 \* ${BOOT_SPACE_ALIGNED} + ${IMAGE_ROOTFS_ALIGNMENT} \* 1024)
177 fi
Patrick Williams8b8bc412016-08-17 15:02:23 -0500178}
179
180ROOTFS_POSTPROCESS_COMMAND += " rpi_generate_sysctl_config ; "
181
182rpi_generate_sysctl_config() {
Brad Bishopf27bdd52018-05-07 15:42:31 +0200183 # systemd sysctl config
184 test -d ${IMAGE_ROOTFS}${sysconfdir}/sysctl.d && \
185 echo "vm.min_free_kbytes = 8192" > ${IMAGE_ROOTFS}${sysconfdir}/sysctl.d/rpi-vm.conf
Patrick Williams8b8bc412016-08-17 15:02:23 -0500186
Brad Bishopf27bdd52018-05-07 15:42:31 +0200187 # sysv sysctl config
188 IMAGE_SYSCTL_CONF="${IMAGE_ROOTFS}${sysconfdir}/sysctl.conf"
189 test -e ${IMAGE_ROOTFS}${sysconfdir}/sysctl.conf && \
190 sed -e "/vm.min_free_kbytes/d" -i ${IMAGE_SYSCTL_CONF}
191 echo "" >> ${IMAGE_SYSCTL_CONF} && echo "vm.min_free_kbytes = 8192" >> ${IMAGE_SYSCTL_CONF}
Patrick Williams8b8bc412016-08-17 15:02:23 -0500192}