| config BR2_TARGET_UBOOT |
| bool "U-Boot" |
| help |
| Build "Das U-Boot" Boot Monitor |
| |
| if BR2_TARGET_UBOOT |
| choice |
| prompt "Build system" |
| default BR2_TARGET_UBOOT_BUILD_SYSTEM_LEGACY |
| |
| config BR2_TARGET_UBOOT_BUILD_SYSTEM_LEGACY |
| bool "Legacy" |
| help |
| Select this option if you use an old U-Boot (older than 2015.04), |
| so that we use the old build system. |
| |
| config BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG |
| bool "Kconfig" |
| help |
| Select this option if you use a recent U-Boot version (2015.04 or |
| newer), so that we use the Kconfig build system. |
| |
| endchoice |
| |
| if BR2_TARGET_UBOOT_BUILD_SYSTEM_LEGACY |
| config BR2_TARGET_UBOOT_BOARDNAME |
| string "U-Boot board name" |
| help |
| One of U-Boot supported boards to be built. |
| This will be suffixed with _config to meet U-Boot standard naming. |
| See boards.cfg in U-Boot source code for the list of available |
| configurations. |
| endif |
| |
| choice |
| prompt "U-Boot Version" |
| help |
| Select the specific U-Boot version you want to use |
| |
| config BR2_TARGET_UBOOT_LATEST_VERSION |
| bool "2016.09.01" |
| |
| config BR2_TARGET_UBOOT_CUSTOM_VERSION |
| bool "Custom version" |
| help |
| This option allows to use a specific official versions |
| |
| config BR2_TARGET_UBOOT_CUSTOM_TARBALL |
| bool "Custom tarball" |
| |
| config BR2_TARGET_UBOOT_CUSTOM_GIT |
| bool "Custom Git repository" |
| |
| config BR2_TARGET_UBOOT_CUSTOM_HG |
| bool "Custom Mercurial repository" |
| |
| config BR2_TARGET_UBOOT_CUSTOM_SVN |
| bool "Custom Subversion repository" |
| |
| endchoice |
| |
| config BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE |
| string "U-Boot version" |
| depends on BR2_TARGET_UBOOT_CUSTOM_VERSION |
| |
| config BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION |
| string "URL of custom U-Boot tarball" |
| depends on BR2_TARGET_UBOOT_CUSTOM_TARBALL |
| |
| if BR2_TARGET_UBOOT_CUSTOM_GIT || BR2_TARGET_UBOOT_CUSTOM_HG || BR2_TARGET_UBOOT_CUSTOM_SVN |
| |
| config BR2_TARGET_UBOOT_CUSTOM_REPO_URL |
| string "URL of custom repository" |
| default BR2_TARGET_UBOOT_CUSTOM_GIT_REPO_URL \ |
| if BR2_TARGET_UBOOT_CUSTOM_GIT_REPO_URL != "" # legacy |
| |
| config BR2_TARGET_UBOOT_CUSTOM_REPO_VERSION |
| string "Custom repository version" |
| default BR2_TARGET_UBOOT_CUSTOM_GIT_VERSION \ |
| if BR2_TARGET_UBOOT_CUSTOM_GIT_VERSION != "" # legacy |
| help |
| Revision to use in the typical format used by Git/Mercurial/Subversion |
| E.G. a sha id, a tag, branch, .. |
| |
| endif |
| |
| config BR2_TARGET_UBOOT_VERSION |
| string |
| default "2016.09.01" if BR2_TARGET_UBOOT_LATEST_VERSION |
| default BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE \ |
| if BR2_TARGET_UBOOT_CUSTOM_VERSION |
| default "custom" if BR2_TARGET_UBOOT_CUSTOM_TARBALL |
| default BR2_TARGET_UBOOT_CUSTOM_REPO_VERSION \ |
| if BR2_TARGET_UBOOT_CUSTOM_GIT || BR2_TARGET_UBOOT_CUSTOM_HG || BR2_TARGET_UBOOT_CUSTOM_SVN |
| |
| config BR2_TARGET_UBOOT_PATCH |
| string "Custom U-Boot patches" |
| default BR2_TARGET_UBOOT_CUSTOM_PATCH_DIR if BR2_TARGET_UBOOT_CUSTOM_PATCH_DIR != "" # legacy |
| help |
| A space-separated list of patches to apply to U-Boot. |
| Each patch can be described as an URL, a local file path, |
| or a directory. In the case of a directory, all files |
| matching *.patch in the directory will be applied. |
| |
| Most users may leave this empty |
| |
| if BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG |
| choice |
| prompt "U-Boot configuration" |
| default BR2_TARGET_UBOOT_USE_DEFCONFIG |
| |
| config BR2_TARGET_UBOOT_USE_DEFCONFIG |
| bool "Using an in-tree board defconfig file" |
| |
| config BR2_TARGET_UBOOT_USE_CUSTOM_CONFIG |
| bool "Using a custom board (def)config file" |
| |
| endchoice |
| |
| config BR2_TARGET_UBOOT_BOARD_DEFCONFIG |
| string "Board defconfig" |
| depends on BR2_TARGET_UBOOT_USE_DEFCONFIG |
| help |
| Name of the board for which U-Boot should be built, without |
| the _defconfig suffix. |
| |
| config BR2_TARGET_UBOOT_CUSTOM_CONFIG_FILE |
| string "Configuration file path" |
| depends on BR2_TARGET_UBOOT_USE_CUSTOM_CONFIG |
| help |
| Path to the U-Boot configuration file. |
| endif |
| |
| config BR2_TARGET_UBOOT_NEEDS_DTC |
| bool "U-Boot needs dtc" |
| select BR2_PACKAGE_HOST_DTC |
| help |
| Select this option if your U-Boot board configuration |
| requires the Device Tree compiler to be available. |
| |
| config BR2_TARGET_UBOOT_NEEDS_OPENSSL |
| bool "U-Boot needs OpenSSL" |
| help |
| Select this option if your U-Boot board configuration |
| requires OpenSSL to be available on the host. This is |
| typically the case when the board configuration has |
| CONFIG_FIT_SIGNATURE enabled. |
| |
| menu "U-Boot binary format" |
| |
| config BR2_TARGET_UBOOT_FORMAT_AIS |
| bool "u-boot.ais" |
| help |
| AIS (Application Image Script) is a format defined by TI. |
| It is required to load code/data on OMAP-L1 processors. |
| u-boot.ais contains U-Boot with the SPL support. |
| |
| config BR2_TARGET_UBOOT_FORMAT_BIN |
| bool "u-boot.bin" |
| default y |
| |
| config BR2_TARGET_UBOOT_FORMAT_DTB_IMG |
| bool "u-boot-dtb.img" |
| |
| config BR2_TARGET_UBOOT_FORMAT_IMG |
| bool "u-boot.img" |
| |
| config BR2_TARGET_UBOOT_FORMAT_IMX |
| bool "u-boot.imx" |
| |
| config BR2_TARGET_UBOOT_FORMAT_NAND_BIN |
| bool "u-boot-nand.bin" |
| |
| config BR2_TARGET_UBOOT_FORMAT_KWB |
| depends on BR2_arm |
| bool "u-boot.kwb (Marvell)" |
| |
| config BR2_TARGET_UBOOT_FORMAT_LDR |
| depends on BR2_bfin |
| bool "u-boot.ldr" |
| |
| config BR2_TARGET_UBOOT_FORMAT_ELF |
| bool "u-boot.elf" |
| |
| config BR2_TARGET_UBOOT_FORMAT_SB |
| depends on BR2_arm |
| bool "u-boot.sb (Freescale i.MX28)" |
| |
| config BR2_TARGET_UBOOT_FORMAT_SD |
| depends on BR2_arm |
| bool "u-boot.sd (Freescale i.MX28)" |
| help |
| This is Freescale i.MX28 SB format, with a header for booting |
| from an SD card. |
| |
| U-boot includes an mxsboot tool to generate this format, |
| starting from 2011.12. |
| |
| See doc/README.mxs (or doc/README.mx28_common before 2013.07) |
| |
| config BR2_TARGET_UBOOT_FORMAT_NAND |
| depends on BR2_arm |
| bool "u-boot.nand (Freescale i.MX28)" |
| help |
| This is Freescale i.MX28 BootStream format (.sb), with a header |
| for booting from a NAND flash. |
| |
| U-boot includes an mxsboot tool to generate this format, |
| starting from 2011.12. |
| |
| There are two possibilities when preparing an image writable to |
| NAND flash: |
| 1) The NAND was not written at all yet or the BCB (Boot Control |
| Blocks) is broken. In this case, the NAND image 'u-boot.nand' |
| needs to written. |
| 2) The NAND flash was already written with a good BCB. This |
| applies after 'u-boot.nand' was correctly written. There is no |
| need to write the BCB again. In this case, the bootloader can be |
| upgraded by writing 'u-boot.sb'. |
| |
| To satisfy both cases, the 'u-boot.nand' image obtained from |
| mxsboot as well as the U-Boot make target 'u-boot.sb' are copied |
| to the binaries directory. |
| |
| See doc/README.mxs (or doc/README.mx28_common before 2013.07) |
| |
| if BR2_TARGET_UBOOT_FORMAT_NAND |
| |
| config BR2_TARGET_UBOOT_FORMAT_NAND_PAGE_SIZE |
| int "NAND page size" |
| default 2048 |
| help |
| The NAND page size of the targets NAND flash in bytes as a |
| decimal integer value. |
| |
| The value provided here is passed to the -w option of mxsboot. |
| |
| config BR2_TARGET_UBOOT_FORMAT_NAND_OOB_SIZE |
| int "NAND OOB size" |
| default 64 |
| help |
| The NAND OOB size of the targets NAND flash in bytes as a |
| decimal integer value. |
| |
| The value provided here is passed to the -o option of mxsboot. |
| |
| config BR2_TARGET_UBOOT_FORMAT_NAND_ERASE_SIZE |
| int "NAND erase size" |
| default 131072 |
| help |
| The NAND eraseblock size of the targets NAND flash in bytes as |
| a decimal integer value. |
| |
| The value provided here is passed to the -e option of mxsboot. |
| |
| endif |
| |
| config BR2_TARGET_UBOOT_FORMAT_CUSTOM |
| bool "Custom (specify below)" |
| help |
| On some platforms, the standard U-Boot binary is not called |
| u-boot.bin, but u-boot<something>.bin. If this is your case, |
| you should select this option and specify the correct name(s) |
| in BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME. |
| |
| config BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME |
| string "U-Boot binary format: custom names" |
| depends on BR2_TARGET_UBOOT_FORMAT_CUSTOM |
| help |
| In case the U-Boot binary for the target platform is not among |
| the default names, one or more custom names can be listed here. |
| Use space to separate multiple names. |
| Example: |
| u-boot_magic.bin |
| |
| endmenu |
| |
| config BR2_TARGET_UBOOT_OMAP_IFT |
| depends on BR2_TARGET_UBOOT_FORMAT_BIN |
| depends on BR2_arm || BR2_armeb |
| select BR2_PACKAGE_HOST_OMAP_U_BOOT_UTILS |
| bool "produce a .ift signed image (OMAP)" |
| help |
| Use gpsign to produce an image of u-boot.bin signed with |
| a Configuration Header for booting on OMAP processors. |
| This allows U-Boot to boot without the need for an |
| intermediate bootloader (e.g. x-loader) if it is written |
| on the first sector of the boot medium. |
| This only works for some media, such as NAND. Check your |
| chip documentation for details. You might also want to |
| read the documentation of gpsign, the tool that generates |
| the .ift image, at: |
| https://github.com/nmenon/omap-u-boot-utils/blob/master/README |
| |
| if BR2_TARGET_UBOOT_OMAP_IFT |
| |
| config BR2_TARGET_UBOOT_OMAP_IFT_CONFIG |
| string "gpsign Configuration Header config file" |
| help |
| The Configuration Header (CH) config file defines the |
| desired content of the CH for the signed image. |
| It usually contains external RAM settings and |
| possibly other external devices initialization. |
| The omap-u-boot-utils software contains example |
| configuration files for some boards: |
| https://github.com/nmenon/omap-u-boot-utils/tree/master/configs |
| |
| endif |
| |
| config BR2_TARGET_UBOOT_SPL |
| bool "Install U-Boot SPL binary image" |
| depends on !BR2_TARGET_XLOADER |
| help |
| Install the U-Boot SPL binary image to the images |
| directory. |
| SPL is a first stage bootloader loaded into internal |
| memory in charge of enabling and configuring the |
| external memory (DDR), and load the u-boot program |
| into DDR. |
| |
| config BR2_TARGET_UBOOT_SPL_NAME |
| string "U-Boot SPL binary image name" |
| default "spl/u-boot-spl.bin" |
| depends on BR2_TARGET_UBOOT_SPL |
| help |
| A space-separated list of SPL binaries, generated during |
| u-boot build. For most platform it is spl/u-boot-spl.bin |
| but not always. It is MLO on OMAP for example. |
| |
| config BR2_TARGET_UBOOT_ZYNQ_IMAGE |
| bool "Generate image for Xilinx Zynq" |
| depends on BR2_arm |
| depends on BR2_TARGET_UBOOT_SPL |
| depends on BR2_TARGET_UBOOT_FORMAT_DTB_IMG |
| help |
| Generate the BOOT.BIN file from U-Boot's SPL. The image |
| boots the Xilinx Zynq chip without any FPGA bitstream. |
| A bitstream can be loaded by the U-Boot. The SPL searchs |
| for u-boot-dtb.img file so this U-Boot format is required |
| to be set. |
| |
| config BR2_TARGET_UBOOT_ALTERA_SOCFPGA_IMAGE_CRC |
| bool "CRC SPL image for Altera SoC FPGA" |
| depends on BR2_arm |
| depends on BR2_TARGET_UBOOT_SPL |
| help |
| Generate SPL image fixed by the mkpimage tool to enable |
| booting on the Altera SoC FPGA based platforms. |
| |
| menuconfig BR2_TARGET_UBOOT_ENVIMAGE |
| bool "Environment image" |
| help |
| Generate a valid binary environment image from a text file |
| describing the key=value pairs of the environment. |
| |
| The environment image will be called uboot-env.bin. |
| |
| if BR2_TARGET_UBOOT_ENVIMAGE |
| |
| config BR2_TARGET_UBOOT_ENVIMAGE_SOURCE |
| string "Source files for environment" |
| help |
| Text files describing the environment. Files should have |
| lines of the form var=value, one per line. Blank lines and |
| lines starting with a # are ignored. |
| |
| Multiple source files are concatenated in the order listed. |
| |
| config BR2_TARGET_UBOOT_ENVIMAGE_SIZE |
| string "Size of environment" |
| help |
| Size of envronment, can be prefixed with 0x for hexadecimal |
| values. |
| |
| config BR2_TARGET_UBOOT_ENVIMAGE_REDUNDANT |
| bool "Environment has two copies" |
| help |
| Some platforms define in their U-Boot configuration that the |
| U-Boot environment should be duplicated in two locations (for |
| extra safety). Check your U-Boot configuration for the |
| CONFIG_ENV_ADDR_REDUND and CONFIG_ENV_SIZE_REDUND settings to |
| see if this is the case for your platform. |
| |
| If it is the case, then you should enable this option to |
| ensure that the U-Boot environment image generated by |
| Buildroot is compatible with the "redundant environment" |
| mechanism of U-Boot. |
| |
| endif # BR2_TARGET_UBOOT_ENVIMAGE |
| |
| endif # BR2_TARGET_UBOOT |
