config ARCH_MAP_SYSMEM depends on SANDBOX def_bool y config CREATE_ARCH_SYMLINK bool config HAVE_ARCH_IOREMAP bool config SYS_CACHE_SHIFT_4 bool config SYS_CACHE_SHIFT_5 bool config SYS_CACHE_SHIFT_6 bool config SYS_CACHE_SHIFT_7 bool config SYS_CACHELINE_SIZE int default 128 if SYS_CACHE_SHIFT_7 default 64 if SYS_CACHE_SHIFT_6 default 32 if SYS_CACHE_SHIFT_5 default 16 if SYS_CACHE_SHIFT_4 # Fall-back for MIPS default 32 if MIPS config LINKER_LIST_ALIGN int default 32 if SANDBOX default 8 if ARM64 || X86 default 4 help Force the each linker list to be aligned to this boundary. This is required if ll_entry_get() is used, since otherwise the linker may add padding into the table, thus breaking it. See linker_lists.rst for full details. choice prompt "Architecture select" default SANDBOX config ARC bool "ARC architecture" select ARC_TIMER select CLK select DM select HAVE_PRIVATE_LIBGCC select SUPPORT_OF_CONTROL select SYS_CACHE_SHIFT_7 select TIMER select SYS_BIG_ENDIAN if CPU_BIG_ENDIAN select SYS_LITTLE_ENDIAN if !CPU_BIG_ENDIAN config ARM bool "ARM architecture" select ARCH_SUPPORTS_LTO select CREATE_ARCH_SYMLINK select HAVE_PRIVATE_LIBGCC if !ARM64 select SUPPORT_ACPI select SUPPORT_OF_CONTROL config M68K bool "M68000 architecture" select HAVE_PRIVATE_LIBGCC select USE_PRIVATE_LIBGCC select SYS_BOOT_GET_CMDLINE select SYS_BOOT_GET_KBD select SYS_CACHE_SHIFT_4 select SUPPORT_OF_CONTROL config MICROBLAZE bool "MicroBlaze architecture" select SUPPORT_OF_CONTROL imply CMD_TIMER imply SPL_REGMAP if SPL imply SPL_TIMER if SPL imply TIMER imply XILINX_TIMER config MIPS bool "MIPS architecture" select HAVE_ARCH_IOREMAP select HAVE_PRIVATE_LIBGCC select SUPPORT_OF_CONTROL select SPL_SEPARATE_BSS if SPL config NIOS2 bool "Nios II architecture" select CPU select DM select DM_EVENT select OF_CONTROL select SUPPORT_OF_CONTROL imply CMD_DM config PPC bool "PowerPC architecture" select HAVE_PRIVATE_LIBGCC select SUPPORT_OF_CONTROL select SYS_BOOT_GET_CMDLINE select SYS_BOOT_GET_KBD config RISCV bool "RISC-V architecture" select CREATE_ARCH_SYMLINK select SUPPORT_ACPI select SUPPORT_OF_CONTROL select OF_CONTROL select DM select DM_EVENT imply SPL_SEPARATE_BSS if SPL imply DM_SERIAL imply DM_MMC imply DM_SPI imply DM_SPI_FLASH imply BLK imply CLK imply MTD imply TIMER imply CMD_DM imply SPL_DM imply SPL_OF_CONTROL imply SPL_LIBCOMMON_SUPPORT imply SPL_LIBGENERIC_SUPPORT imply SPL_SERIAL imply SPL_TIMER config SANDBOX bool "Sandbox" select ARCH_SUPPORTS_LTO select BOARD_LATE_INIT select BZIP2 select CMD_POWEROFF if CMDLINE select DM select DM_EVENT select DM_FUZZING_ENGINE select DM_GPIO select DM_I2C select DM_KEYBOARD select DM_MMC select DM_SERIAL select DM_SPI select DM_SPI_FLASH select GZIP_COMPRESSED select IO_TRACE select LZO select MTD select OF_BOARD_SETUP select PCI_ENDPOINT select SPI select SUPPORT_OF_CONTROL select SYSRESET_CMD_POWEROFF if CMD_POWEROFF select SYS_CACHE_SHIFT_4 select IRQ select SUPPORT_EXTENSION_SCAN if CMDLINE select SUPPORT_ACPI imply BITREVERSE select BLOBLIST imply LTO imply CMD_DM imply CMD_EXCEPTION imply CMD_GETTIME imply CMD_HASH imply CMD_IO imply CMD_IOTRACE imply CMD_LZMADEC imply CMD_SF imply CMD_SF_TEST imply CRC32_VERIFY imply FAT_WRITE imply FIRMWARE imply FUZZING_ENGINE_SANDBOX imply HASH_VERIFY imply LZMA imply TEE imply AVB_VERIFY imply LIBAVB imply CMD_AVB imply PARTITION_TYPE_GUID imply SCP03 imply CMD_SCP03 imply UDP_FUNCTION_FASTBOOT imply VIRTIO_MMIO imply VIRTIO_PCI imply VIRTIO_SANDBOX imply VIRTIO_BLK imply VIRTIO_NET imply DM_SOUND imply PCI_SANDBOX_EP imply PCH imply PHYLIB imply DM_MDIO imply DM_MDIO_MUX imply ACPI imply ACPI_PMC imply ACPI_PMC_SANDBOX imply CMD_PMC imply CMD_CLONE imply SILENT_CONSOLE imply BOOTARGS_SUBST imply PHY_FIXED imply DM_DSA imply CMD_EXTENSION imply KEYBOARD imply PHYSMEM imply GENERATE_ACPI_TABLE imply BINMAN imply CMD_MBR imply CMD_MMC imply BOOTSTD_DEFAULTS if BOOTSTD_FULL && CMDLINE imply BOOTMETH_DISTRO if BOOTSTD_FULL && CMDLINE imply CMD_SYSBOOT if BOOTSTD_FULL config SH bool "SuperH architecture" select HAVE_PRIVATE_LIBGCC select SUPPORT_OF_CONTROL config X86 bool "x86 architecture" select SUPPORT_SPL select SUPPORT_TPL select CREATE_ARCH_SYMLINK select DM select HAVE_ARCH_IOMAP select HAVE_PRIVATE_LIBGCC select OF_CONTROL select PCI select SUPPORT_ACPI select SUPPORT_OF_CONTROL select SYS_CACHE_SHIFT_6 select TIMER select USE_PRIVATE_LIBGCC select X86_TSC_TIMER select IRQ imply HAS_ROM if X86_RESET_VECTOR imply BLK imply CMD_DM imply CMD_FPGA_LOADMK imply CMD_GETTIME imply CMD_IO imply CMD_IRQ imply CMD_PCI imply CMD_SF imply CMD_SF_TEST imply CMD_ZBOOT imply DM_GPIO imply DM_KEYBOARD imply DM_MMC imply DM_RTC imply SCSI imply DM_SERIAL imply MTD imply DM_SPI imply DM_SPI_FLASH imply DM_USB imply LAST_STAGE_INIT imply VIDEO imply SYSRESET imply SPL_SYSRESET imply SYSRESET_X86 imply USB_ETHER_ASIX imply USB_ETHER_SMSC95XX imply USB_HOST_ETHER imply PCH imply PHYSMEM imply RTC_MC146818 imply ACPI imply ACPIGEN if !QEMU && !EFI_APP imply SYSINFO if GENERATE_SMBIOS_TABLE imply SYSINFO_SMBIOS if GENERATE_SMBIOS_TABLE imply TIMESTAMP # Thing to enable for when SPL/TPL are enabled: SPL imply SPL_DM imply SPL_OF_LIBFDT imply SPL_DRIVERS_MISC imply SPL_GPIO imply SPL_PINCTRL imply SPL_LIBCOMMON_SUPPORT imply SPL_LIBGENERIC_SUPPORT imply SPL_SERIAL imply SPL_SPI_FLASH_SUPPORT imply SPL_SPI imply SPL_OF_CONTROL imply SPL_TIMER imply SPL_REGMAP imply SPL_SYSCON # TPL imply TPL_DM imply TPL_DRIVERS_MISC imply TPL_GPIO imply TPL_PINCTRL imply TPL_LIBCOMMON_SUPPORT imply TPL_LIBGENERIC_SUPPORT imply TPL_SERIAL imply TPL_OF_CONTROL imply TPL_TIMER imply TPL_REGMAP imply TPL_SYSCON config XTENSA bool "Xtensa architecture" select CREATE_ARCH_SYMLINK select SUPPORT_OF_CONTROL endchoice config SYS_ARCH string help This option should contain the architecture name to build the appropriate arch/ directory. All the architectures should specify this option correctly. config SYS_CPU string help This option should contain the CPU name to build the correct arch//cpu/ directory. This is optional. For those targets without the CPU directory, leave this option empty. config SYS_SOC string help This option should contain the SoC name to build the directory arch//cpu//. This is optional. For those targets without the SoC directory, leave this option empty. config SYS_VENDOR string help This option should contain the vendor name of the target board. If it is set and board//common/Makefile exists, the vendor common directory is compiled. If CONFIG_SYS_BOARD is also set, the sources under board// directory are compiled. This is optional. For those targets without the vendor directory, leave this option empty. config SYS_BOARD string help This option should contain the name of the target board. If it is set, either board// or board/ directory is compiled depending on whether CONFIG_SYS_VENDOR is set or not. This is optional. For those targets without the board directory, leave this option empty. config SYS_CONFIG_NAME string "Board header file" if ARCH_MESON || ARCH_VERSAL || \ ARCH_VERSAL_NET || ARCH_ZYNQ || ARCH_ZYNQMP || \ ARCH_ZYNQMP_R5 || MICROBLAZE || NIOS2 default "meson64" if ARCH_MESON default "microblaze-generic" if MICROBLAZE default "xilinx_versal" if ARCH_VERSAL default "xilinx_versal_net" if ARCH_VERSAL_NET default "xilinx_zynqmp" if ARCH_ZYNQMP default "xilinx_zynqmp_r5" if ARCH_ZYNQMP_R5 default "zynq-common" if ARCH_ZYNQ help This option should contain the base name of board header file. The header file include/configs/.h should be included from include/config.h. config SYS_DISABLE_DCACHE_OPS bool help This option disables dcache flush and dcache invalidation operations. For example, on coherent systems where cache operatios are not required, enable this option to avoid them. Note that, its up to the individual architectures to implement this functionality. config SYS_IMMR hex "Address for the Internal Memory-Mapped Registers (IMMR) window" depends on PPC || FSL_LSCH2 || FSL_LSCH3 || ARCH_LS1021A default 0xFF000000 if MPC8xx default 0xF0000000 if ARCH_MPC8313 default 0xE0000000 if MPC83xx && !ARCH_MPC8313 default 0x01000000 if ARCH_LS1021A || FSL_LSCH2 || FSL_LSCH3 default 0xFFE00000 if ARCH_P1010 || ARCH_P1011 || ARCH_P1020 || \ ARCH_P1021 || ARCH_P1024 || ARCH_P1025 || \ ARCH_P2020 default SYS_CCSRBAR_DEFAULT help Address for the Internal Memory-Mapped Registers (IMMR) window used to configure the features of many Freescale / NXP SoCs. config MONITOR_IS_IN_RAM bool "U-Boot is loaded in to RAM by a pre-loader" depends on M68K || NIOS2 menu "Skipping low level initialization functions" depends on ARM || MIPS || RISCV config SKIP_LOWLEVEL_INIT bool "Skip calls to certain low level initialization functions" help If enabled, then certain low level initializations (like setting up the memory controller) are omitted and/or U-Boot does not relocate itself into RAM. Normally this variable MUST NOT be defined. The only exception is when U-Boot is loaded (to RAM) by some other boot loader or by a debugger which performs these initializations itself. config SPL_SKIP_LOWLEVEL_INIT bool "Skip calls to certain low level initialization functions in SPL" depends on SPL help If enabled, then certain low level initializations (like setting up the memory controller) are omitted and/or U-Boot does not relocate itself into RAM. Normally this variable MUST NOT be defined. The only exception is when U-Boot is loaded (to RAM) by some other boot loader or by a debugger which performs these initializations itself. config TPL_SKIP_LOWLEVEL_INIT bool "Skip calls to certain low level initialization functions in TPL" depends on SPL && ARM help If enabled, then certain low level initializations (like setting up the memory controller) are omitted and/or U-Boot does not relocate itself into RAM. Normally this variable MUST NOT be defined. The only exception is when U-Boot is loaded (to RAM) by some other boot loader or by a debugger which performs these initializations itself. config SKIP_LOWLEVEL_INIT_ONLY bool "Skip call to lowlevel_init during early boot ONLY" depends on ARM help This allows just the call to lowlevel_init() to be skipped. The normal CP15 init (such as enabling the instruction cache) is still performed. config SPL_SKIP_LOWLEVEL_INIT_ONLY bool "Skip call to lowlevel_init during early SPL boot ONLY" depends on SPL && ARM help This allows just the call to lowlevel_init() to be skipped. The normal CP15 init (such as enabling the instruction cache) is still performed. config TPL_SKIP_LOWLEVEL_INIT_ONLY bool "Skip call to lowlevel_init during early TPL boot ONLY" depends on TPL && ARM help This allows just the call to lowlevel_init() to be skipped. The normal CP15 init (such as enabling the instruction cache) is still performed. endmenu config SYS_HAS_NONCACHED_MEMORY bool "Enable reserving a non-cached memory area for drivers" depends on (ARM || MIPS) && (RTL8169 || MEDIATEK_ETH) help This is useful for drivers that would otherwise require a lot of explicit cache maintenance. For some drivers it's also impossible to properly maintain the cache. For example if the regions that need to be flushed are not a multiple of the cache-line size, *and* padding cannot be allocated between the regions to align them (i.e. if the HW requires a contiguous array of regions, and the size of each region is not cache-aligned), then a flush of one region may result in overwriting data that hardware has written to another region in the same cache-line. This can happen for example in network drivers where descriptors for buffers are typically smaller than the CPU cache-line (e.g. 16 bytes vs. 32 or 64 bytes). config SYS_NONCACHED_MEMORY hex "Size in bytes of the non-cached memory area" depends on SYS_HAS_NONCACHED_MEMORY default 0x100000 help Size of non-cached memory area. This area of memory will be typically located right below the malloc() area and mapped uncached in the MMU. source "arch/arc/Kconfig" source "arch/arm/Kconfig" source "arch/m68k/Kconfig" source "arch/microblaze/Kconfig" source "arch/mips/Kconfig" source "arch/nios2/Kconfig" source "arch/powerpc/Kconfig" source "arch/sandbox/Kconfig" source "arch/sh/Kconfig" source "arch/x86/Kconfig" source "arch/xtensa/Kconfig" source "arch/riscv/Kconfig" if ARM || M68K || PPC source "arch/Kconfig.nxp" endif source "board/keymile/Kconfig" if MIPS || MICROBLAZE choice prompt "Endianness selection" help Some MIPS boards can be configured for either little or big endian byte order. These modes require different U-Boot images. In general there is one preferred byteorder for a particular system but some systems are just as commonly used in the one or the other endianness. config SYS_BIG_ENDIAN bool "Big endian" depends on (SUPPORTS_BIG_ENDIAN && MIPS) || MICROBLAZE config SYS_LITTLE_ENDIAN bool "Little endian" depends on (SUPPORTS_LITTLE_ENDIAN && MIPS) || MICROBLAZE endchoice endif