modification du meta-pengwyn pour l'integration d'un initramfs inclus dans le noyau pour chiffrer une partition avec dm-crypt/LUKS

conf/machine/pengwyn_fitimage.conf

@@ -0,0 +1,126 @@
+#@TYPE: Machine
+#@NAME: AM335x Pengwyn
+#@DESCRIPTION: Machine configuration for the Silica Pengwyn Board 
+
+require conf/machine/include/ti33x.inc
+
+IMAGE_CLASSES += "sdcard_image-pengwyn"
+
+#IMAGE_FSTYPES ?= "tar.bz2 ext4 wic wic.bmap"
+IMAGE_FSTYPES = "tar.bz2 ext4"
+#MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "kernel-image kernel-devicetree"
+#MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "kernel-image kernel-modules"
+MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "kernel-image"
+
+# A list of machine-dependent packages not essential for booting the image. 
+# Thus, the build does not fail if the packages do not exist. 
+# However, the packages are required for a fully-featured image
+#MACHINE_EXTRA_RRECOMMENDS = "kernel-modules"
+
+# Normally AM335 boards use ttyS0, but ICE uses ttyS3, so try both
+SERIAL_CONSOLES = "115200;ttyS0 115200;ttyO0 115200;ttyAMA0"
+SERIAL_CONSOLES_CHECK = "${SERIAL_CONSOLES}"
+
+EXTRA_IMAGEDEPENDS += "virtual/bootloader virtual/dtb"
+
+##########################################################
+#
+# Bootloader
+#
+##########################################################
+
+PREFERRED_PROVIDER_virtual/bootloader ?= "u-boot"
+PREFERRED_VERSION_u-boot ?= "u-boot-ti-staging_2020.07%"
+
+# The file type for the Secondary Program Loader (SPL)
+SPL_BINARY = "MLO"
+UBOOT_SUFFIX = "img"
+UBOOT_MACHINE = "pengwyn_defconfig"
+UBOOT_ENTRYPOINT = "0x80008000"
+UBOOT_LOADADDRESS = "0x80008000"
+UBOOT_DTB_LOADADDRESS = "0x80F80000"
+
+# Localtion of the directory containing the RSA key and certificate used for signing image
+UBOOT_SIGN_KEYDIR = "${PWD}/scle_keys"
+# keys name in keydir (eg. "dev.crt", "dev.key")
+UBOOT_SIGN_KEYNAME = "scle"
+UBOOT_SIGN_ENABLE = "1"
+
+# Localtion of the directory containing the RSA key and certificate used for signing bootloader 
+SPL_SIGN_KEYDIR = "${PWD}/scle_keys"
+SPL_SIGN_KEYNAME = "scle"
+SPL_SIGN_ENABLE = "0"
+
+##########################################################
+#
+# U-Boot FIT Image
+#
+##########################################################
+
+# Enable use of a U-Boot fitImage
+UBOOT_FITIMAGE_ENABLE = "0"
+# U-Boot fitImage Hash Algo
+UBOOT_FIT_HASH_ALG = "sha256"
+# U-Boot fitImage Signature Algo
+UBOOT_FIT_SIGN_ALG = "rsa4096"
+# Generate keys for signing U-Boot fitImage
+UBOOT_FIT_GENERATE_KEYS = "0"
+# Size of private keys in number of bits
+UBOOT_FIT_SIGN_NUMBITS = "4096"
+
+##########################################################
+#
+# Kernel FIT Image
+#
+##########################################################
+
+# Decides whether to generate the keys for signing fitImage if they don’t already exist
+FIT_GENERATE_KEYS = "1"
+# Specifies the hash algorithm used in creating the FIT Image
+FIT_HASH_ALG = "sha256"
+# Specifies the signature algorithm used in creating the FIT Image
+FIT_SIGN_ALG = "rsa4096"
+# Size of private key in number of bits used in fitImage
+FIT_SIGN_NUMBITS = "4096"
+
+##########################################################
+#
+# Linux
+#
+##########################################################
+
+PREFERRED_PROVIDER_virtual/kernel ?= "linux-ti-staging"
+PREFERRED_VERSION_linux-ti-staging ?= "5.4%"
+
+#KERNEL_IMAGETYPE = "uImage"
+KERNEL_CLASSES ?= " kernel-fitimage "
+KERNEL_IMAGETYPE = "fitImage"
+# Not necessary => see devicetree recipe
+#KERNEL_DEVICETREE = "am335x-pengwyn.dtb"
+# Remove dtb from ti33x.inc
+KERNEL_DEVICETREE:remove = " \
+    am335x-evm.dtb \
+    am335x-evmsk.dtb \
+    am335x-icev2.dtb \
+    am335x-pocketbeagle.dtb am335x-bone.dtb am335x-boneblue.dtb \
+    am335x-bonegreen.dtb am335x-bonegreen-wireless.dtb \
+    am335x-boneblack.dtb am335x-boneblack-wireless.dtb \
+    am335x-sancloud-bbe.dtb \
+"
+KERNEL_EXTRA_ARGS += "LOADADDR=${UBOOT_ENTRYPOINT}"
+
+##########################################################
+#
+# Devicetree blob
+#
+##########################################################
+
+PREFERRED_PROVIDER_virtual/dtb ?= "devicetree"
+PREFERRED_VERSION_dtb ?= "1.0%"
+
+MACHINE_FEATURES = "usbgadget usbhost vfat"
+
+#IMAGE_BOOT_FILES = "MLO u-boot.${UBOOT_SUFFIX} uEnv.txt uImage devicetree/am335x-pengwyn.dtb"
+IMAGE_BOOT_FILES = "MLO u-boot.${UBOOT_SUFFIX} uEnv.txt fitImage devicetree/am335x-pengwyn.dtb"
+
+RM_WORK_EXCLUDE += "u-boot-ti-staging linux-ti-staging"