# Handle U-Boot config for a machine
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#
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# The format to specify it, in the machine, is:
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#
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# UBOOT_CONFIG ??= <default>
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# UBOOT_CONFIG[foo] = "config,images,binary"
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#
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# or
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#
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# UBOOT_MACHINE = "config"
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#
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# Copyright 2013, 2014 (C) O.S. Systems Software LTDA.
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def removesuffix(s, suffix):
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if suffix and s.endswith(suffix):
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return s[:-len(suffix)]
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return s
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# Some versions of u-boot use .bin and others use .img. By default use .bin
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# but enable individual recipes to change this value.
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UBOOT_SUFFIX ??= "bin"
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UBOOT_BINARY ?= "u-boot.${UBOOT_SUFFIX}"
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UBOOT_BINARYNAME ?= "${@os.path.splitext(d.getVar("UBOOT_BINARY"))[0]}"
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UBOOT_IMAGE ?= "${UBOOT_BINARYNAME}-${MACHINE}-${PV}-${PR}.${UBOOT_SUFFIX}"
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UBOOT_SYMLINK ?= "${UBOOT_BINARYNAME}-${MACHINE}.${UBOOT_SUFFIX}"
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UBOOT_MAKE_TARGET ?= "all"
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# Output the ELF generated. Some platforms can use the ELF file and directly
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# load it (JTAG booting, QEMU) additionally the ELF can be used for debugging
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# purposes.
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UBOOT_ELF ?= ""
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UBOOT_ELF_SUFFIX ?= "elf"
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UBOOT_ELF_IMAGE ?= "u-boot-${MACHINE}-${PV}-${PR}.${UBOOT_ELF_SUFFIX}"
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UBOOT_ELF_BINARY ?= "u-boot.${UBOOT_ELF_SUFFIX}"
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UBOOT_ELF_SYMLINK ?= "u-boot-${MACHINE}.${UBOOT_ELF_SUFFIX}"
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# Some versions of u-boot build an SPL (Second Program Loader) image that
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# should be packaged along with the u-boot binary as well as placed in the
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# deploy directory. For those versions they can set the following variables
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# to allow packaging the SPL.
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SPL_SUFFIX ?= ""
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SPL_BINARY ?= ""
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SPL_DELIMITER ?= "${@'.' if d.getVar("SPL_SUFFIX") else ''}"
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SPL_BINARYFILE ?= "${@os.path.basename(d.getVar("SPL_BINARY"))}"
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SPL_BINARYNAME ?= "${@removesuffix(d.getVar("SPL_BINARYFILE"), "." + d.getVar("SPL_SUFFIX"))}"
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SPL_IMAGE ?= "${SPL_BINARYNAME}-${MACHINE}-${PV}-${PR}${SPL_DELIMITER}${SPL_SUFFIX}"
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SPL_SYMLINK ?= "${SPL_BINARYNAME}-${MACHINE}${SPL_DELIMITER}${SPL_SUFFIX}"
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# Additional environment variables or a script can be installed alongside
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# u-boot to be used automatically on boot. This file, typically 'uEnv.txt'
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# or 'boot.scr', should be packaged along with u-boot as well as placed in the
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# deploy directory. Machine configurations needing one of these files should
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# include it in the SRC_URI and set the UBOOT_ENV parameter.
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UBOOT_ENV_SUFFIX ?= "txt"
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UBOOT_ENV ?= ""
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UBOOT_ENV_BINARY ?= "${UBOOT_ENV}.${UBOOT_ENV_SUFFIX}"
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UBOOT_ENV_IMAGE ?= "${UBOOT_ENV}-${MACHINE}-${PV}-${PR}.${UBOOT_ENV_SUFFIX}"
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UBOOT_ENV_SYMLINK ?= "${UBOOT_ENV}-${MACHINE}.${UBOOT_ENV_SUFFIX}"
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# Default name of u-boot initial env, but enable individual recipes to change
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# this value.
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UBOOT_INITIAL_ENV ?= "${PN}-initial-env"
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# U-Boot EXTLINUX variables. U-Boot searches for /boot/extlinux/extlinux.conf
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# to find EXTLINUX conf file.
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UBOOT_EXTLINUX_INSTALL_DIR ?= "/boot/extlinux"
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UBOOT_EXTLINUX_CONF_NAME ?= "extlinux.conf"
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UBOOT_EXTLINUX_SYMLINK ?= "${UBOOT_EXTLINUX_CONF_NAME}-${MACHINE}-${PR}"
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# Options for the device tree compiler passed to mkimage '-D' feature:
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UBOOT_MKIMAGE_DTCOPTS ??= ""
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SPL_MKIMAGE_DTCOPTS ??= ""
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# mkimage command
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UBOOT_MKIMAGE ?= "uboot-mkimage"
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UBOOT_MKIMAGE_SIGN ?= "${UBOOT_MKIMAGE}"
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# Arguments passed to mkimage for signing
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UBOOT_MKIMAGE_SIGN_ARGS ?= ""
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SPL_MKIMAGE_SIGN_ARGS ?= ""
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# Options to deploy the u-boot device tree
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UBOOT_DTB ?= ""
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UBOOT_DTB_BINARY ??= ""
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python () {
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ubootmachine = d.getVar("UBOOT_MACHINE")
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ubootconfigflags = d.getVarFlags('UBOOT_CONFIG')
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ubootbinary = d.getVar('UBOOT_BINARY')
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ubootbinaries = d.getVar('UBOOT_BINARIES')
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# The "doc" varflag is special, we don't want to see it here
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ubootconfigflags.pop('doc', None)
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ubootconfig = (d.getVar('UBOOT_CONFIG') or "").split()
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if not ubootmachine and not ubootconfig:
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PN = d.getVar("PN")
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FILE = os.path.basename(d.getVar("FILE"))
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bb.debug(1, "To build %s, see %s for instructions on \
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setting up your machine config" % (PN, FILE))
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raise bb.parse.SkipRecipe("Either UBOOT_MACHINE or UBOOT_CONFIG must be set in the %s machine configuration." % d.getVar("MACHINE"))
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if ubootmachine and ubootconfig:
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raise bb.parse.SkipRecipe("You cannot use UBOOT_MACHINE and UBOOT_CONFIG at the same time.")
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if ubootconfigflags and ubootbinaries:
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raise bb.parse.SkipRecipe("You cannot use UBOOT_BINARIES as it is internal to uboot_config.bbclass.")
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if len(ubootconfig) > 0:
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for config in ubootconfig:
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for f, v in ubootconfigflags.items():
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if config == f:
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items = v.split(',')
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if items[0] and len(items) > 3:
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raise bb.parse.SkipRecipe('Only config,images,binary can be specified!')
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d.appendVar('UBOOT_MACHINE', ' ' + items[0])
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# IMAGE_FSTYPES appending
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if len(items) > 1 and items[1]:
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bb.debug(1, "Appending '%s' to IMAGE_FSTYPES." % items[1])
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d.appendVar('IMAGE_FSTYPES', ' ' + items[1])
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if len(items) > 2 and items[2]:
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bb.debug(1, "Appending '%s' to UBOOT_BINARIES." % items[2])
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d.appendVar('UBOOT_BINARIES', ' ' + items[2])
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else:
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bb.debug(1, "Appending '%s' to UBOOT_BINARIES." % ubootbinary)
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d.appendVar('UBOOT_BINARIES', ' ' + ubootbinary)
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break
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}
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