X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=Kconfig;h=c8b86cd3843decd86f2f5f477b249717cc4eb365;hb=1612ff0dfba57b1002d8c7a54778eb553ace98f4;hp=9b07838764329918f59e083c2b32b4ff6dd55cf4;hpb=c6e18144b69231192a2722dbf5a0be9d18d60fcd;p=platform%2Fkernel%2Fu-boot.git diff --git a/Kconfig b/Kconfig index 9b07838..c8b86cd 100644 --- a/Kconfig +++ b/Kconfig @@ -1,6 +1,7 @@ # # For a description of the syntax of this configuration file, -# see Documentation/kbuild/kconfig-language.txt. +# see the file Documentation/kbuild/kconfig-language.txt in the +# Linux kernel source tree. # mainmenu "U-Boot $UBOOTVERSION Configuration" @@ -13,11 +14,17 @@ source "arch/Kconfig" menu "General setup" +config BROKEN + bool + help + This option cannot be enabled. It is used as dependency + for broken and incomplete features. + config LOCALVERSION string "Local version - append to U-Boot release" help Append an extra string to the end of your U-Boot version. - This will show up on your boot log, for example. + This will show up in your boot log, for example. The string you set here will be appended after the contents of any files with a filename matching localversion* in your object and source tree, in that order. Your total string can @@ -28,11 +35,11 @@ config LOCALVERSION_AUTO default y help This will try to automatically determine if the current tree is a - release tree by looking for git tags that belong to the current + release tree by looking for Git tags that belong to the current top of tree revision. A string of the format -gxxxxxxxx will be added to the localversion - if a git-based tree is found. The string generated by this will be + if a Git-based tree is found. The string generated by this will be appended after any matching localversion* files, and after the value set in CONFIG_LOCALVERSION. @@ -52,11 +59,68 @@ config CC_OPTIMIZE_FOR_SIZE This option is enabled by default for U-Boot. +config CC_COVERAGE + bool "Enable code coverage analysis" + depends on SANDBOX + help + Enabling this option will pass "--coverage" to gcc to compile + and link code instrumented for coverage analysis. + +config DISTRO_DEFAULTS + bool "Select defaults suitable for booting general purpose Linux distributions" + imply USE_BOOTCOMMAND + select CMD_BOOTZ if ARM && !ARM64 + select CMD_BOOTI if ARM64 + select CMD_DHCP if CMD_NET + select CMD_PING if CMD_NET + select CMD_PXE if NET + select CMD_ENV_EXISTS + select CMD_EXT2 + select CMD_EXT4 + select CMD_FAT + select CMD_FS_GENERIC + imply CMD_MII if NET + select CMD_PART if PARTITIONS + select HUSH_PARSER + select CMDLINE_EDITING + select AUTO_COMPLETE + select SYS_LONGHELP + select SUPPORT_RAW_INITRD + select ENV_VARS_UBOOT_CONFIG + help + Select this to enable various options and commands which are suitable + for building u-boot for booting general purpose Linux distributions. + +config ENV_VARS_UBOOT_CONFIG + bool "Add arch, board, vendor and soc variables to default environment" + help + Define this in order to add variables describing the + U-Boot build configuration to the default environment. + These will be named arch, cpu, board, vendor, and soc. + Enabling this option will cause the following to be defined: + - CONFIG_SYS_ARCH + - CONFIG_SYS_CPU + - CONFIG_SYS_BOARD + - CONFIG_SYS_VENDOR + - CONFIG_SYS_SOC + +config SYS_BOOT_GET_CMDLINE + bool "Enable kernel command line setup" + help + Enables allocating and saving kernel cmdline in space between + "bootm_low" and "bootm_low" + BOOTMAPSZ. + +config SYS_BOOT_GET_KBD + bool "Enable kernel board information setup" + help + Enables allocating and saving a kernel copy of the bd_info in + space between "bootm_low" and "bootm_low" + BOOTMAPSZ. + config SYS_MALLOC_F bool "Enable malloc() pool before relocation" default y if DM help - Before relocation memory is very limited on many platforms. Still, + Before relocation, memory is very limited on many platforms. Still, we can provide a small malloc() pool if needed. Driver model in particular needs this to operate, so that it can allocate the initial serial device and any others that are needed. @@ -64,13 +128,34 @@ config SYS_MALLOC_F config SYS_MALLOC_F_LEN hex "Size of malloc() pool before relocation" depends on SYS_MALLOC_F + default 0x1000 if AM33XX default 0x400 help - Before relocation memory is very limited on many platforms. Still, + Before relocation, memory is very limited on many platforms. Still, we can provide a small malloc() pool if needed. Driver model in particular needs this to operate, so that it can allocate the initial serial device and any others that are needed. +config SPL_SYS_MALLOC_F_LEN + hex "Size of malloc() pool in SPL before relocation" + depends on SYS_MALLOC_F + default SYS_MALLOC_F_LEN + help + Before relocation, memory is very limited on many platforms. Still, + we can provide a small malloc() pool if needed. Driver model in + particular needs this to operate, so that it can allocate the + initial serial device and any others that are needed. + +config TPL_SYS_MALLOC_F_LEN + hex "Size of malloc() pool in TPL before relocation" + depends on SYS_MALLOC_F + default SYS_MALLOC_F_LEN + help + Before relocation, memory is very limited on many platforms. Still, + we can provide a small malloc() pool if needed. Driver model in + particular needs this to operate, so that it can allocate the + initial serial device and any others that are needed. + menuconfig EXPERT bool "Configure standard U-Boot features (expert users)" default y @@ -78,7 +163,7 @@ menuconfig EXPERT This option allows certain base U-Boot options and settings to be disabled or tweaked. This is for specialized environments which can tolerate a "non-standard" U-Boot. - Only use this if you really know what you are doing. + Use this only if you really know what you are doing. if EXPERT config SYS_MALLOC_CLEAR_ON_INIT @@ -95,104 +180,249 @@ if EXPERT Then the boot time can be significantly reduced. Warning: When disabling this, please check if malloc calls, maybe - should be replaced by calloc - if expects zeroed memory. -endif -endmenu # General setup - -menu "Boot images" - -config SUPPORT_SPL - bool + should be replaced by calloc - if one expects zeroed memory. -config SUPPORT_TPL - bool - -config SPL - bool - depends on SUPPORT_SPL - prompt "Enable SPL" +config TOOLS_DEBUG + bool "Enable debug information for tools" help - If you want to build SPL as well as the normal image, say Y. + Enable generation of debug information for tools such as mkimage. + This can be used for debugging purposes. With debug information + it is possible to set breakpoints on particular lines, single-step + debug through the source code, etc. -config SPL_SYS_MALLOC_SIMPLE - bool - depends on SPL - prompt "Only use malloc_simple functions in the spl" - help - Say Y here to only use the *_simple malloc functions from - malloc_simple.c, rather then using the versions from dlmalloc.c - this will make the SPL binary smaller at the cost of more heap - usage as the *_simple malloc functions do not re-use free-ed mem. +endif # EXPERT -config SPL_STACK_R - depends on SPL - bool "Enable SDRAM location for SPL stack" +config PHYS_64BIT + bool "64bit physical address support" help - SPL starts off execution in SRAM and thus typically has only a small - stack available. Since SPL sets up DRAM while in its board_init_f() - function, it is possible for the stack to move there before - board_init_r() is reached. This option enables a special SDRAM - location for the SPL stack. U-Boot SPL switches to this after - board_init_f() completes, and before board_init_r() starts. + Say Y here to support 64bit physical memory address. + This can be used not only for 64bit SoCs, but also for + large physical address extention on 32bit SoCs. -config SPL_STACK_R_ADDR - depends on SPL_STACK_R - hex "SDRAM location for SPL stack" +config BUILD_ROM + bool "Build U-Boot as BIOS replacement" + depends on X86 help - Specify the address in SDRAM for the SPL stack. This will be set up - before board_init_r() is called. + This option allows to build a ROM version of U-Boot. + The build process generally requires several binary blobs + which are not shipped in the U-Boot source tree. + Please, see doc/README.x86 for details. -config SPL_STACK_R_MALLOC_SIMPLE_LEN - depends on SPL_STACK_R && SPL_SYS_MALLOC_SIMPLE - hex "Size of malloc_simple heap after switching to DRAM SPL stack" - default 0x100000 - help - Specify the amount of the stack to use as memory pool for - malloc_simple after switching the stack to DRAM. This may be set - to give board_init_r() a larger heap then the initial heap in - SRAM which is limited to SYS_MALLOC_F_LEN bytes. +endmenu # General setup -config SPL_SEPARATE_BSS - depends on SPL - bool "BSS section is in a different memory region from text" - help - Some platforms need a large BSS region in SPL and can provide this - because RAM is already set up. In this case BSS can be moved to RAM. - This option should then be enabled so that the correct device tree - location is used. Normally we put the device tree at the end of BSS - but with this option enabled, it goes at _image_binary_end. +menu "Boot images" -config TPL - bool - depends on SPL && SUPPORT_TPL - prompt "Enable TPL" +config ANDROID_BOOT_IMAGE + bool "Enable support for Android Boot Images" + default y if FASTBOOT help - If you want to build TPL as well as the normal image and SPL, say Y. + This enables support for booting images which use the Android + image format header. config FIT bool "Support Flattened Image Tree" + select MD5 + select SHA1 help - This option allows to boot the new uImage structrure, + This option allows you to boot the new uImage structure, Flattened Image Tree. FIT is formally a FDT, which can include images of various types (kernel, FDT blob, ramdisk, etc.) in a single blob. To boot this new uImage structure, pass the address of the blob to the "bootm" command. + FIT is very flexible, supporting compression, multiple images, + multiple configurations, verification through hashing and also + verified boot (secure boot using RSA). -config FIT_VERBOSE - bool "Display verbose messages on FIT boot" - depends on FIT +if FIT + +config FIT_ENABLE_SHA256_SUPPORT + bool "Support SHA256 checksum of FIT image contents" + select SHA256 + default y + help + Enable this to support SHA256 checksum of FIT image contents. A + SHA256 checksum is a 256-bit (32-byte) hash value used to check that + the image contents have not been corrupted. SHA256 is recommended + for use in secure applications since (as at 2016) there is no known + feasible attack that could produce a 'collision' with differing + input data. Use this for the highest security. Note that only the + SHA256 variant is supported: SHA512 and others are not currently + supported in U-Boot. config FIT_SIGNATURE bool "Enable signature verification of FIT uImages" - depends on FIT depends on DM select RSA + select HASH help This option enables signature verification of FIT uImages, using a hash signed and verified using RSA. If CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive - hashing is available using hardware, RSA library will use it. - See doc/uImage.FIT/signature.txt for more details. + hashing is available using hardware, then the RSA library will use + it. See doc/uImage.FIT/signature.txt for more details. + + WARNING: When relying on signed FIT images with a required signature + check the legacy image format is disabled by default, so that + unsigned images cannot be loaded. If a board needs the legacy image + format support in this case, enable it using + CONFIG_IMAGE_FORMAT_LEGACY. + +config FIT_SIGNATURE_MAX_SIZE + hex "Max size of signed FIT structures" + depends on FIT_SIGNATURE + default 0x10000000 + help + This option sets a max size in bytes for verified FIT uImages. + A sane value of 256MB protects corrupted DTB structures from overlapping + device memory. Assure this size does not extend past expected storage + space. + +config FIT_VERBOSE + bool "Show verbose messages when FIT images fail" + help + Generally a system will have valid FIT images so debug messages + are a waste of code space. If you are debugging your images then + you can enable this option to get more verbose information about + failures. + +config FIT_BEST_MATCH + bool "Select the best match for the kernel device tree" + help + When no configuration is explicitly selected, default to the + one whose fdt's compatibility field best matches that of + U-Boot itself. A match is considered "best" if it matches the + most specific compatibility entry of U-Boot's fdt's root node. + The order of entries in the configuration's fdt is ignored. + +config FIT_IMAGE_POST_PROCESS + bool "Enable post-processing of FIT artifacts after loading by U-Boot" + depends on TI_SECURE_DEVICE + help + Allows doing any sort of manipulation to blobs after they got extracted + from FIT images like stripping off headers or modifying the size of the + blob, verification, authentication, decryption etc. in a platform or + board specific way. In order to use this feature a platform or board- + specific implementation of board_fit_image_post_process() must be + provided. Also, anything done during this post-processing step would + need to be comprehended in how the images were prepared before being + injected into the FIT creation (i.e. the blobs would have been pre- + processed before being added to the FIT image). + +if SPL + +config SPL_FIT + bool "Support Flattened Image Tree within SPL" + depends on SPL + select SPL_OF_LIBFDT + +config SPL_FIT_PRINT + bool "Support FIT printing within SPL" + depends on SPL_FIT + help + Support printing the content of the fitImage in a verbose manner in SPL. + +config SPL_FIT_SIGNATURE + bool "Enable signature verification of FIT firmware within SPL" + depends on SPL_DM + select SPL_FIT + select SPL_RSA + +config SPL_LOAD_FIT + bool "Enable SPL loading U-Boot as a FIT" + select SPL_FIT + help + Normally with the SPL framework a legacy image is generated as part + of the build. This contains U-Boot along with information as to + where it should be loaded. This option instead enables generation + of a FIT (Flat Image Tree) which provides more flexibility. In + particular it can handle selecting from multiple device tree + and passing the correct one to U-Boot. + +config SPL_LOAD_FIT_FULL + bool "Enable SPL loading U-Boot as a FIT" + select SPL_FIT + help + Normally with the SPL framework a legacy image is generated as part + of the build. This contains U-Boot along with information as to + where it should be loaded. This option instead enables generation + of a FIT (Flat Image Tree) which provides more flexibility. In + particular it can handle selecting from multiple device tree + and passing the correct one to U-Boot. + +config SPL_FIT_IMAGE_POST_PROCESS + bool "Enable post-processing of FIT artifacts after loading by the SPL" + depends on SPL_LOAD_FIT + help + Allows doing any sort of manipulation to blobs after they got extracted + from the U-Boot FIT image like stripping off headers or modifying the + size of the blob, verification, authentication, decryption etc. in a + platform or board specific way. In order to use this feature a platform + or board-specific implementation of board_fit_image_post_process() must + be provided. Also, anything done during this post-processing step would + need to be comprehended in how the images were prepared before being + injected into the FIT creation (i.e. the blobs would have been pre- + processed before being added to the FIT image). + +config SPL_FIT_SOURCE + string ".its source file for U-Boot FIT image" + depends on SPL_FIT + help + Specifies a (platform specific) FIT source file to generate the + U-Boot FIT image. This could specify further image to load and/or + execute. + +config SPL_FIT_GENERATOR + string ".its file generator script for U-Boot FIT image" + depends on SPL_FIT + default "board/sunxi/mksunxi_fit_atf.sh" if SPL_LOAD_FIT && ARCH_SUNXI + help + Specifies a (platform specific) script file to generate the FIT + source file used to build the U-Boot FIT image file. This gets + passed a list of supported device tree file stub names to + include in the generated image. + +endif # SPL + +endif # FIT + +config IMAGE_FORMAT_LEGACY + bool "Enable support for the legacy image format" + default y if !FIT_SIGNATURE + help + This option enables the legacy image format. It is enabled by + default for backward compatibility, unless FIT_SIGNATURE is + set where it is disabled so that unsigned images cannot be + loaded. If a board needs the legacy image format support in this + case, enable it here. + +config OF_BOARD_SETUP + bool "Set up board-specific details in device tree before boot" + depends on OF_LIBFDT + help + This causes U-Boot to call ft_board_setup() before booting into + the Operating System. This function can set up various + board-specific information in the device tree for use by the OS. + The device tree is then passed to the OS. + +config OF_SYSTEM_SETUP + bool "Set up system-specific details in device tree before boot" + depends on OF_LIBFDT + help + This causes U-Boot to call ft_system_setup() before booting into + the Operating System. This function can set up various + system-specific information in the device tree for use by the OS. + The device tree is then passed to the OS. + +config OF_STDOUT_VIA_ALIAS + bool "Update the device-tree stdout alias from U-Boot" + depends on OF_LIBFDT + help + This uses U-Boot's serial alias from the aliases node to update + the device tree passed to the OS. The "linux,stdout-path" property + in the chosen node is set to point to the correct serial node. + This option currently references CONFIG_CONS_INDEX, which is + incorrect when used with device tree as this option does not + exist / should not be used. config SYS_EXTRA_OPTIONS string "Extra Options (DEPRECATED)" @@ -208,12 +438,17 @@ config SYS_EXTRA_OPTIONS new boards should not use this option. config SYS_TEXT_BASE - depends on SPARC || ARC || X86 || ARCH_UNIPHIER || ARCH_ZYNQMP || \ - (M68K && !TARGET_ASTRO_MCF5373L) + depends on !NIOS2 && !XTENSA depends on !EFI_APP + default 0x80800000 if ARCH_OMAP2PLUS + default 0x4a000000 if ARCH_SUNXI && !MACH_SUN9I && !MACH_SUN8I_V3S + default 0x2a000000 if ARCH_SUNXI && MACH_SUN9I + default 0x42e00000 if ARCH_SUNXI && MACH_SUN8I_V3S hex "Text Base" help - TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture + The address in memory that U-Boot will be running from, initially. + + config SYS_CLK_FREQ depends on ARC || ARCH_SUNXI @@ -221,12 +456,28 @@ config SYS_CLK_FREQ help TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture +config ARCH_FIXUP_FDT_MEMORY + bool "Enable arch_fixup_memory_banks() call" + default y + help + Enable FDT memory map syncup before OS boot. This feature can be + used for booting OS with different memory setup where the part of + the memory location should be used for different purpose. + endmenu # Boot images +source "api/Kconfig" + source "common/Kconfig" +source "cmd/Kconfig" + +source "disk/Kconfig" + source "dts/Kconfig" +source "env/Kconfig" + source "net/Kconfig" source "drivers/Kconfig"