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authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/Kconfig
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/Kconfig')
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+#
+# For a description of the syntax of this configuration file,
+# see the file Documentation/kbuild/kconfig-language.txt in the
+# Linux kernel source tree.
+#
+mainmenu "U-Boot $(UBOOTVERSION) Configuration"
+
+comment "Compiler: $(CC_VERSION_TEXT)"
+
+source "scripts/Kconfig.include"
+
+# Allow defaults in arch-specific code to override any given here
+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 DEPRECATED
+ bool
+ help
+ This option cannot be enabled. It it used as a dependency for
+ code that relies on deprecated features that will be removed and
+ the conversion deadline has passed.
+
+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 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
+ be a maximum of 64 characters.
+
+config LOCALVERSION_AUTO
+ bool "Automatically append version information to the version string"
+ 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
+ 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
+ appended after any matching localversion* files, and after the value
+ set in CONFIG_LOCALVERSION.
+
+ (The actual string used here is the first eight characters produced
+ by running the command:
+
+ $ git rev-parse --verify HEAD
+
+ which is done within the script "scripts/setlocalversion".)
+
+config CC_OPTIMIZE_FOR_SIZE
+ bool "Optimize for size"
+ default y
+ help
+ Enabling this option will pass "-Os" instead of "-O2" to gcc
+ resulting in a smaller U-Boot image.
+
+ This option is enabled by default for U-Boot.
+
+config OPTIMIZE_INLINING
+ bool "Allow compiler to uninline functions marked 'inline' in full U-Boot"
+ default n
+ help
+ This option determines if U-Boot forces gcc to inline the functions
+ developers have marked 'inline'. Doing so takes away freedom from gcc to
+ do what it thinks is best, which is desirable in some cases for size
+ reasons.
+
+config SPL_OPTIMIZE_INLINING
+ bool "Allow compiler to uninline functions marked 'inline' in SPL"
+ depends on SPL
+ default n
+ help
+ This option determines if U-Boot forces gcc to inline the functions
+ developers have marked 'inline'. Doing so takes away freedom from gcc to
+ do what it thinks is best, which is desirable in some cases for size
+ reasons.
+
+config ARCH_SUPPORTS_LTO
+ bool
+
+config LTO
+ bool "Enable Link Time Optimizations"
+ depends on ARCH_SUPPORTS_LTO
+ default n
+ help
+ This option enables Link Time Optimization (LTO), a mechanism which
+ allows the compiler to optimize between different compilation units.
+
+ This can optimize away dead code paths, resulting in smaller binary
+ size (if CC_OPTIMIZE_FOR_SIZE is enabled).
+
+ This option is not available for every architecture and may
+ introduce bugs.
+
+ Currently, when compiling with GCC, due to a weird bug regarding
+ jobserver, the final linking will not respect make's --jobs argument.
+ Instead all available processors will be used (as reported by the
+ nproc command).
+
+ If unsure, say n.
+
+config TPL_OPTIMIZE_INLINING
+ bool "Allow compiler to uninline functions marked 'inline' in TPL"
+ depends on TPL
+ default n
+ help
+ This option determines if U-Boot forces gcc to inline the functions
+ developers have marked 'inline'. Doing so takes away freedom from gcc to
+ do what it thinks is best, which is desirable in some cases for size
+ reasons.
+
+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 CC_HAS_ASM_INLINE
+ def_bool $(success,echo 'void foo(void) { asm inline (""); }' | $(CC) -x c - -c -o /dev/null)
+
+config XEN
+ bool "Select U-Boot be run as a bootloader for XEN Virtual Machine"
+ help
+ Enabling this option will make U-Boot be run as a bootloader
+ for XEN [1] Virtual Machine.
+
+ Xen is a virtual machine monitor (VMM) or a type-1 hypervisor with support
+ for para-virtualization. Xen can organize the safe execution of several
+ virtual machines on the same physical system with performance close to
+ native. It is used as the basis for a number of different commercial and
+ open source applications, such as: server virtualization, Infrastructure
+ as a Service (IaaS), desktop virtualization, security applications,
+ embedded and hardware appliances.
+ Xen has a special VM called Domain-0 that runs the Dom0 kernel and allows
+ Xen to use the device drivers for the Domain-0 kernel by default.
+
+ [1] - https://xenproject.org/
+
+config DISTRO_DEFAULTS
+ bool "Select defaults suitable for booting general purpose Linux distributions"
+ select AUTO_COMPLETE
+ select CMDLINE_EDITING
+ select CMD_BOOTI if ARM64
+ select CMD_BOOTZ if ARM && !ARM64
+ select CMD_DHCP if CMD_NET
+ select CMD_ENV_EXISTS
+ select CMD_EXT2
+ select CMD_EXT4
+ select CMD_FAT
+ select CMD_FS_GENERIC
+ select CMD_PART if PARTITIONS
+ select CMD_PING if CMD_NET
+ select CMD_PXE if NET
+ select CMD_SYSBOOT
+ select ENV_VARS_UBOOT_CONFIG
+ select HUSH_PARSER
+ select SUPPORT_RAW_INITRD
+ select SYS_LONGHELP
+ imply CMD_MII if NET
+ imply USB_STORAGE
+ imply USE_BOOTCOMMAND
+ 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 NR_DRAM_BANKS
+ int "Number of DRAM banks"
+ default 1 if ARCH_SUNXI || ARCH_OWL
+ default 4
+ help
+ This defines the number of DRAM banks.
+
+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,
+ 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 SYS_MALLOC_F_LEN
+ hex "Size of malloc() pool before relocation"
+ depends on SYS_MALLOC_F
+ default 0x1000 if AM33XX
+ default 0x4000 if SANDBOX
+ default 0x2000 if (ARCH_IMX8 || ARCH_IMX8M || ARCH_MX7 || \
+ ARCH_MX7ULP || ARCH_MX6 || ARCH_MX5 || \
+ ARCH_LS1012A || ARCH_LS1021A || ARCH_LS1043A || \
+ ARCH_LS1046A || ARCH_QEMU || ARCH_SUNXI || ARCH_OWL)
+ default 0x400
+ 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 SYS_MALLOC_LEN
+ hex "Define memory for Dynamic allocation"
+ depends on ARCH_ZYNQ || ARCH_VERSAL || ARCH_STM32MP || ARCH_ROCKCHIP
+ default 0x2000000 if ARCH_ROCKCHIP
+ help
+ This defines memory to be allocated for Dynamic allocation
+ TODO: Use for other architectures
+
+config SPL_SYS_MALLOC_F_LEN
+ hex "Size of malloc() pool in SPL"
+ depends on SYS_MALLOC_F && SPL
+ default 0x2800 if RCAR_GEN3
+ default SYS_MALLOC_F_LEN
+ help
+ In SPL 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.
+
+ It is possible to enable CONFIG_SYS_SPL_MALLOC_START to start a new
+ malloc() region in SDRAM once it is inited.
+
+config TPL_SYS_MALLOC_F_LEN
+ hex "Size of malloc() pool in TPL"
+ depends on SYS_MALLOC_F && TPL
+ default SPL_SYS_MALLOC_F_LEN
+ help
+ In TPL 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
+ help
+ 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.
+ Use this only if you really know what you are doing.
+
+if EXPERT
+ config SYS_MALLOC_CLEAR_ON_INIT
+ bool "Init with zeros the memory reserved for malloc (slow)"
+ default y
+ help
+ This setting is enabled by default. The reserved malloc
+ memory is initialized with zeros, so first malloc calls
+ will return the pointer to the zeroed memory. But this
+ slows the boot time.
+
+ It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
+ value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
+ Then the boot time can be significantly reduced.
+ Warning:
+ When disabling this, please check if malloc calls, maybe
+ should be replaced by calloc - if one expects zeroed memory.
+
+config SYS_MALLOC_DEFAULT_TO_INIT
+ bool "Default malloc to init while reserving the memory for it"
+ default n
+ help
+ It may happen that one needs to move the dynamic allocation
+ from one to another memory range, eg. when moving the malloc
+ from the limited static to a potentially large dynamic (DDR)
+ memory.
+
+ If so then on top of setting the updated memory aside one
+ needs to bring the malloc init.
+
+ If such a scenario is sought choose yes.
+
+config TOOLS_DEBUG
+ bool "Enable debug information for tools"
+ help
+ 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.
+
+endif # EXPERT
+
+config PHYS_64BIT
+ bool "64bit physical address support"
+ help
+ Say Y here to support 64bit physical memory address.
+ This can be used not only for 64bit SoCs, but also for
+ large physical address extension on 32bit SoCs.
+
+config HAS_ROM
+ bool
+ select BINMAN
+ help
+ Enables building of a u-boot.rom target. This collects U-Boot and
+ any necessary binary blobs.
+
+config ROM_NEEDS_BLOBS
+ bool
+ depends on HAS_ROM
+ help
+ Enable this if building the u-boot.rom target needs binary blobs, and
+ so cannot be done normally. In this case, U-Boot will only build the
+ ROM if the required blobs exist. If not, you will see an warning like:
+
+ Image 'main-section' is missing external blobs and is non-functional:
+ intel-descriptor intel-me intel-refcode intel-vga intel-mrc
+
+config BUILD_ROM
+ bool "Build U-Boot as BIOS replacement"
+ depends on HAS_ROM
+ default y if !ROM_NEEDS_BLOBS
+ help
+ 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/arch/x86.rst for details.
+
+config SPL_IMAGE
+ string "SPL image used in the combined SPL+U-Boot image"
+ default "spl/boot.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
+ default "spl/u-boot-spl.bin"
+ depends on SPL
+ help
+ Select the SPL build target that shall be generated by the SPL
+ build process (default spl/u-boot-spl.bin). This image will be
+ used to generate a combined image with SPL and main U-Boot
+ proper as one single image.
+
+config BUILD_TARGET
+ string "Build target special images"
+ default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_ARRIA10
+ default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_GEN5
+ default "u-boot-spl.kwb" if ARCH_MVEBU && SPL
+ default "u-boot-elf.srec" if RCAR_GEN3
+ default "u-boot.itb" if !BINMAN && SPL_LOAD_FIT && (ARCH_ROCKCHIP || \
+ ARCH_SUNXI || RISCV || ARCH_ZYNQMP)
+ default "u-boot.kwb" if ARCH_KIRKWOOD
+ default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
+ default "u-boot-with-spl.imx" if ARCH_MX6 && SPL
+ help
+ Some SoCs need special image types (e.g. U-Boot binary
+ with a special header) as build targets. By defining
+ CONFIG_BUILD_TARGET in the SoC / board header, this
+ special image will be automatically built upon calling
+ make / buildman.
+
+config SYS_CUSTOM_LDSCRIPT
+ bool "Use a custom location for the U-Boot linker script"
+ help
+ Normally when linking U-Boot we will look in the board directory,
+ the CPU directory and finally the "cpu" directory of the architecture
+ for the ile "u-boot.lds" and use that as our linker. However, in
+ some cases we need to provide a different linker script. To do so,
+ enable this option and then provide the location under
+ CONFIG_SYS_LDSCRIPT.
+
+config SYS_LDSCRIPT
+ depends on SYS_CUSTOM_LDSCRIPT
+ string "Custom ldscript location"
+ help
+ Path within the source tree to the linker script to use for the
+ main U-Boot binary.
+
+config ERR_PTR_OFFSET
+ hex
+ default 0x0
+ help
+ Some U-Boot pointers have redundant information, so we can use a
+ scheme where we can return either an error code or a pointer with the
+ same return value. The default implementation just casts the pointer
+ to a number, however, this may fail on platforms where the end of the
+ address range is used for valid pointers (e.g. 0xffffff00 is a valid
+ heap pointer in socfpga SPL).
+ For such platforms, this value provides an upper range of those error
+ pointer values - up to 'MAX_ERRNO' bytes below this value must be
+ unused/invalid addresses.
+
+config PLATFORM_ELFENTRY
+ string
+ default "__start" if MIPS
+ default "_start"
+
+config STACK_SIZE
+ hex "Define max stack size that can be used by U-Boot"
+ default 0x4000000 if ARCH_VERSAL || ARCH_ZYNQMP
+ default 0x200000 if MICROBLAZE
+ default 0x1000000
+ help
+ Define Max stack size that can be used by U-Boot. This value is used
+ by the UEFI sub-system. On some boards initrd_high is calculated as
+ base stack pointer minus this stack size.
+
+config SYS_HAS_SRAM
+ bool
+ default y if TARGET_PIC32MZDASK
+ default y if TARGET_DEVKIT8000
+ default y if TARGET_TRICORDER
+ default n
+ help
+ Enable this to allow support for the on board SRAM.
+ SRAM base address is controlled by CONFIG_SYS_SRAM_BASE.
+ SRAM size is controlled by CONFIG_SYS_SRAM_SIZE.
+
+config SYS_SRAM_BASE
+ hex
+ default 0x80000000 if TARGET_PIC32MZDASK
+ default 0x40200000 if TARGET_DEVKIT8000
+ default 0x40200000 if TARGET_TRICORDER
+ default 0x0
+
+config SYS_SRAM_SIZE
+ hex
+ default 0x00080000 if TARGET_PIC32MZDASK
+ default 0x10000 if TARGET_DEVKIT8000
+ default 0x10000 if TARGET_TRICORDER
+ default 0x0
+
+config EXAMPLES
+ bool "Compile API examples"
+ depends on !SANDBOX
+ default y if ARCH_QEMU
+ help
+ U-Boot provides an API for standalone applications. Examples are
+ provided in directory examples/.
+
+endmenu # General setup
+
+source "api/Kconfig"
+
+source "common/Kconfig"
+
+source "cmd/Kconfig"
+
+source "disk/Kconfig"
+
+source "dts/Kconfig"
+
+source "env/Kconfig"
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "lib/Kconfig"
+
+source "test/Kconfig"
+
+source "tools/Kconfig"