| menu "x86 architecture" |
| depends on X86 |
| |
| config SYS_ARCH |
| default "x86" |
| |
| choice |
| prompt "Run U-Boot in 32/64-bit mode" |
| default X86_RUN_32BIT |
| help |
| U-Boot can be built as a 32-bit binary which runs in 32-bit mode |
| even on 64-bit machines. In this case SPL is not used, and U-Boot |
| runs directly from the reset vector (via 16-bit start-up). |
| |
| Alternatively it can be run as a 64-bit binary, thus requiring a |
| 64-bit machine. In this case SPL runs in 32-bit mode (via 16-bit |
| start-up) then jumps to U-Boot in 64-bit mode. |
| |
| For now, 32-bit mode is recommended, as 64-bit is still |
| experimental and is missing a lot of features. |
| |
| config X86_RUN_32BIT |
| bool "32-bit" |
| help |
| Build U-Boot as a 32-bit binary with no SPL. This is the currently |
| supported normal setup. U-Boot will stay in 32-bit mode even on |
| 64-bit machines. When booting a 64-bit kernel, U-Boot will switch |
| to 64-bit just before starting the kernel. Only the bottom 4GB of |
| memory can be accessed through normal means, although |
| arch_phys_memset() can be used for basic access to other memory. |
| |
| config X86_RUN_64BIT |
| bool "64-bit" |
| select X86_64 |
| select SUPPORT_SPL |
| select SPL |
| select SPL_SEPARATE_BSS |
| help |
| Build U-Boot as a 64-bit binary with a 32-bit SPL. This is |
| experimental and many features are missing. U-Boot SPL starts up, |
| runs through the 16-bit and 32-bit init, then switches to 64-bit |
| mode and jumps to U-Boot proper. |
| |
| endchoice |
| |
| config X86_64 |
| bool |
| |
| config SPL_X86_64 |
| bool |
| depends on SPL |
| |
| choice |
| prompt "Mainboard vendor" |
| default VENDOR_EMULATION |
| |
| config VENDOR_ADVANTECH |
| bool "advantech" |
| |
| config VENDOR_CONGATEC |
| bool "congatec" |
| |
| config VENDOR_COREBOOT |
| bool "coreboot" |
| |
| config VENDOR_DFI |
| bool "dfi" |
| |
| config VENDOR_EFI |
| bool "efi" |
| |
| config VENDOR_EMULATION |
| bool "emulation" |
| |
| config VENDOR_GOOGLE |
| bool "Google" |
| |
| config VENDOR_INTEL |
| bool "Intel" |
| |
| endchoice |
| |
| # subarchitectures-specific options below |
| config INTEL_MID |
| bool "Intel MID platform support" |
| select REGMAP |
| select SYSCON |
| help |
| Select to build a U-Boot capable of supporting Intel MID |
| (Mobile Internet Device) platform systems which do not have |
| the PCI legacy interfaces. |
| |
| If you are building for a PC class system say N here. |
| |
| Intel MID platforms are based on an Intel processor and |
| chipset which consume less power than most of the x86 |
| derivatives. |
| |
| # board-specific options below |
| source "board/advantech/Kconfig" |
| source "board/congatec/Kconfig" |
| source "board/coreboot/Kconfig" |
| source "board/dfi/Kconfig" |
| source "board/efi/Kconfig" |
| source "board/emulation/Kconfig" |
| source "board/google/Kconfig" |
| source "board/intel/Kconfig" |
| |
| # platform-specific options below |
| source "arch/x86/cpu/baytrail/Kconfig" |
| source "arch/x86/cpu/braswell/Kconfig" |
| source "arch/x86/cpu/broadwell/Kconfig" |
| source "arch/x86/cpu/coreboot/Kconfig" |
| source "arch/x86/cpu/ivybridge/Kconfig" |
| source "arch/x86/cpu/efi/Kconfig" |
| source "arch/x86/cpu/qemu/Kconfig" |
| source "arch/x86/cpu/quark/Kconfig" |
| source "arch/x86/cpu/queensbay/Kconfig" |
| source "arch/x86/cpu/tangier/Kconfig" |
| |
| # architecture-specific options below |
| |
| config AHCI |
| default y |
| |
| config SYS_MALLOC_F_LEN |
| default 0x800 |
| |
| config RAMBASE |
| hex |
| default 0x100000 |
| |
| config XIP_ROM_SIZE |
| hex |
| depends on X86_RESET_VECTOR |
| default ROM_SIZE |
| |
| config CPU_ADDR_BITS |
| int |
| default 36 |
| |
| config HPET_ADDRESS |
| hex |
| default 0xfed00000 if !HPET_ADDRESS_OVERRIDE |
| |
| config SMM_TSEG |
| bool |
| default n |
| |
| config SMM_TSEG_SIZE |
| hex |
| |
| config X86_RESET_VECTOR |
| bool |
| default n |
| select BINMAN |
| |
| # The following options control where the 16-bit and 32-bit init lies |
| # If SPL is enabled then it normally holds this init code, and U-Boot proper |
| # is normally a 64-bit build. |
| # |
| # The 16-bit init refers to the reset vector and the small amount of code to |
| # get the processor into 32-bit mode. It may be in SPL or in U-Boot proper, |
| # or missing altogether if U-Boot is started from EFI or coreboot. |
| # |
| # The 32-bit init refers to processor init, running binary blobs including |
| # FSP, setting up interrupts and anything else that needs to be done in |
| # 32-bit code. It is normally in the same place as 16-bit init if that is |
| # enabled (i.e. they are both in SPL, or both in U-Boot proper). |
| config X86_16BIT_INIT |
| bool |
| depends on X86_RESET_VECTOR |
| default y if X86_RESET_VECTOR && !SPL |
| help |
| This is enabled when 16-bit init is in U-Boot proper |
| |
| config SPL_X86_16BIT_INIT |
| bool |
| depends on X86_RESET_VECTOR |
| default y if X86_RESET_VECTOR && SPL |
| help |
| This is enabled when 16-bit init is in SPL |
| |
| config X86_32BIT_INIT |
| bool |
| depends on X86_RESET_VECTOR |
| default y if X86_RESET_VECTOR && !SPL |
| help |
| This is enabled when 32-bit init is in U-Boot proper |
| |
| config SPL_X86_32BIT_INIT |
| bool |
| depends on X86_RESET_VECTOR |
| default y if X86_RESET_VECTOR && SPL |
| help |
| This is enabled when 32-bit init is in SPL |
| |
| config RESET_SEG_START |
| hex |
| depends on X86_RESET_VECTOR |
| default 0xffff0000 |
| |
| config RESET_SEG_SIZE |
| hex |
| depends on X86_RESET_VECTOR |
| default 0x10000 |
| |
| config RESET_VEC_LOC |
| hex |
| depends on X86_RESET_VECTOR |
| default 0xfffffff0 |
| |
| config SYS_X86_START16 |
| hex |
| depends on X86_RESET_VECTOR |
| default 0xfffff800 |
| |
| config X86_LOAD_FROM_32_BIT |
| bool "Boot from a 32-bit program" |
| help |
| Define this to boot U-Boot from a 32-bit program which sets |
| the GDT differently. This can be used to boot directly from |
| any stage of coreboot, for example, bypassing the normal |
| payload-loading feature. |
| |
| config BOARD_ROMSIZE_KB_512 |
| bool |
| config BOARD_ROMSIZE_KB_1024 |
| bool |
| config BOARD_ROMSIZE_KB_2048 |
| bool |
| config BOARD_ROMSIZE_KB_4096 |
| bool |
| config BOARD_ROMSIZE_KB_8192 |
| bool |
| config BOARD_ROMSIZE_KB_16384 |
| bool |
| |
| choice |
| prompt "ROM chip size" |
| depends on X86_RESET_VECTOR |
| default UBOOT_ROMSIZE_KB_512 if BOARD_ROMSIZE_KB_512 |
| default UBOOT_ROMSIZE_KB_1024 if BOARD_ROMSIZE_KB_1024 |
| default UBOOT_ROMSIZE_KB_2048 if BOARD_ROMSIZE_KB_2048 |
| default UBOOT_ROMSIZE_KB_4096 if BOARD_ROMSIZE_KB_4096 |
| default UBOOT_ROMSIZE_KB_8192 if BOARD_ROMSIZE_KB_8192 |
| default UBOOT_ROMSIZE_KB_16384 if BOARD_ROMSIZE_KB_16384 |
| help |
| Select the size of the ROM chip you intend to flash U-Boot on. |
| |
| The build system will take care of creating a u-boot.rom file |
| of the matching size. |
| |
| config UBOOT_ROMSIZE_KB_512 |
| bool "512 KB" |
| help |
| Choose this option if you have a 512 KB ROM chip. |
| |
| config UBOOT_ROMSIZE_KB_1024 |
| bool "1024 KB (1 MB)" |
| help |
| Choose this option if you have a 1024 KB (1 MB) ROM chip. |
| |
| config UBOOT_ROMSIZE_KB_2048 |
| bool "2048 KB (2 MB)" |
| help |
| Choose this option if you have a 2048 KB (2 MB) ROM chip. |
| |
| config UBOOT_ROMSIZE_KB_4096 |
| bool "4096 KB (4 MB)" |
| help |
| Choose this option if you have a 4096 KB (4 MB) ROM chip. |
| |
| config UBOOT_ROMSIZE_KB_8192 |
| bool "8192 KB (8 MB)" |
| help |
| Choose this option if you have a 8192 KB (8 MB) ROM chip. |
| |
| config UBOOT_ROMSIZE_KB_16384 |
| bool "16384 KB (16 MB)" |
| help |
| Choose this option if you have a 16384 KB (16 MB) ROM chip. |
| |
| endchoice |
| |
| # Map the config names to an integer (KB). |
| config UBOOT_ROMSIZE_KB |
| int |
| default 512 if UBOOT_ROMSIZE_KB_512 |
| default 1024 if UBOOT_ROMSIZE_KB_1024 |
| default 2048 if UBOOT_ROMSIZE_KB_2048 |
| default 4096 if UBOOT_ROMSIZE_KB_4096 |
| default 8192 if UBOOT_ROMSIZE_KB_8192 |
| default 16384 if UBOOT_ROMSIZE_KB_16384 |
| |
| # Map the config names to a hex value (bytes). |
| config ROM_SIZE |
| hex |
| default 0x80000 if UBOOT_ROMSIZE_KB_512 |
| default 0x100000 if UBOOT_ROMSIZE_KB_1024 |
| default 0x200000 if UBOOT_ROMSIZE_KB_2048 |
| default 0x400000 if UBOOT_ROMSIZE_KB_4096 |
| default 0x800000 if UBOOT_ROMSIZE_KB_8192 |
| default 0xc00000 if UBOOT_ROMSIZE_KB_12288 |
| default 0x1000000 if UBOOT_ROMSIZE_KB_16384 |
| |
| config HAVE_INTEL_ME |
| bool "Platform requires Intel Management Engine" |
| help |
| Newer higher-end devices have an Intel Management Engine (ME) |
| which is a very large binary blob (typically 1.5MB) which is |
| required for the platform to work. This enforces a particular |
| SPI flash format. You will need to supply the me.bin file in |
| your board directory. |
| |
| config X86_RAMTEST |
| bool "Perform a simple RAM test after SDRAM initialisation" |
| help |
| If there is something wrong with SDRAM then the platform will |
| often crash within U-Boot or the kernel. This option enables a |
| very simple RAM test that quickly checks whether the SDRAM seems |
| to work correctly. It is not exhaustive but can save time by |
| detecting obvious failures. |
| |
| config FLASH_DESCRIPTOR_FILE |
| string "Flash descriptor binary filename" |
| depends on HAVE_INTEL_ME |
| default "descriptor.bin" |
| help |
| The filename of the file to use as flash descriptor in the |
| board directory. |
| |
| config INTEL_ME_FILE |
| string "Intel Management Engine binary filename" |
| depends on HAVE_INTEL_ME |
| default "me.bin" |
| help |
| The filename of the file to use as Intel Management Engine in the |
| board directory. |
| |
| config HAVE_FSP |
| bool "Add an Firmware Support Package binary" |
| depends on !EFI |
| help |
| Select this option to add an Firmware Support Package binary to |
| the resulting U-Boot image. It is a binary blob which U-Boot uses |
| to set up SDRAM and other chipset specific initialization. |
| |
| Note: Without this binary U-Boot will not be able to set up its |
| SDRAM so will not boot. |
| |
| config FSP_FILE |
| string "Firmware Support Package binary filename" |
| depends on HAVE_FSP |
| default "fsp.bin" |
| help |
| The filename of the file to use as Firmware Support Package binary |
| in the board directory. |
| |
| config FSP_ADDR |
| hex "Firmware Support Package binary location" |
| depends on HAVE_FSP |
| default 0xfffc0000 |
| help |
| FSP is not Position Independent Code (PIC) and the whole FSP has to |
| be rebased if it is placed at a location which is different from the |
| perferred base address specified during the FSP build. Use Intel's |
| Binary Configuration Tool (BCT) to do the rebase. |
| |
| The default base address of 0xfffc0000 indicates that the binary must |
| be located at offset 0xc0000 from the beginning of a 1MB flash device. |
| |
| config FSP_TEMP_RAM_ADDR |
| hex |
| depends on HAVE_FSP |
| default 0x2000000 |
| help |
| Stack top address which is used in fsp_init() after DRAM is ready and |
| CAR is disabled. |
| |
| config FSP_SYS_MALLOC_F_LEN |
| hex |
| depends on HAVE_FSP |
| default 0x100000 |
| help |
| Additional size of malloc() pool before relocation. |
| |
| config FSP_USE_UPD |
| bool |
| depends on HAVE_FSP |
| default y |
| help |
| Most FSPs use UPD data region for some FSP customization. But there |
| are still some FSPs that might not even have UPD. For such FSPs, |
| override this to n in their platform Kconfig files. |
| |
| config FSP_BROKEN_HOB |
| bool |
| depends on HAVE_FSP |
| help |
| Indicate some buggy FSPs that does not report memory used by FSP |
| itself as reserved in the resource descriptor HOB. Select this to |
| tell U-Boot to do some additional work to ensure U-Boot relocation |
| do not overwrite the important boot service data which is used by |
| FSP, otherwise the subsequent call to fsp_notify() will fail. |
| |
| config ENABLE_MRC_CACHE |
| bool "Enable MRC cache" |
| depends on !EFI && !SYS_COREBOOT |
| help |
| Enable this feature to cause MRC data to be cached in NV storage |
| to be used for speeding up boot time on future reboots and/or |
| power cycles. |
| |
| For platforms that use Intel FSP for the memory initialization, |
| please check FSP output HOB via U-Boot command 'fsp hob' to see |
| if there is FSP_NON_VOLATILE_STORAGE_HOB_GUID (asm/fsp/fsp_hob.h). |
| If such GUID does not exist, MRC cache is not avaiable on such |
| platform (eg: Intel Queensbay), which means selecting this option |
| here does not make any difference. |
| |
| config HAVE_MRC |
| bool "Add a System Agent binary" |
| depends on !HAVE_FSP |
| help |
| Select this option to add a System Agent binary to |
| the resulting U-Boot image. MRC stands for Memory Reference Code. |
| It is a binary blob which U-Boot uses to set up SDRAM. |
| |
| Note: Without this binary U-Boot will not be able to set up its |
| SDRAM so will not boot. |
| |
| config CACHE_MRC_BIN |
| bool |
| depends on HAVE_MRC |
| default n |
| help |
| Enable caching for the memory reference code binary. This uses an |
| MTRR (memory type range register) to turn on caching for the section |
| of SPI flash that contains the memory reference code. This makes |
| SDRAM init run faster. |
| |
| config CACHE_MRC_SIZE_KB |
| int |
| depends on HAVE_MRC |
| default 512 |
| help |
| Sets the size of the cached area for the memory reference code. |
| This ends at the end of SPI flash (address 0xffffffff) and is |
| measured in KB. Typically this is set to 512, providing for 0.5MB |
| of cached space. |
| |
| config DCACHE_RAM_BASE |
| hex |
| depends on HAVE_MRC |
| help |
| Sets the base of the data cache area in memory space. This is the |
| start address of the cache-as-RAM (CAR) area and the address varies |
| depending on the CPU. Once CAR is set up, read/write memory becomes |
| available at this address and can be used temporarily until SDRAM |
| is working. |
| |
| config DCACHE_RAM_SIZE |
| hex |
| depends on HAVE_MRC |
| default 0x40000 |
| help |
| Sets the total size of the data cache area in memory space. This |
| sets the size of the cache-as-RAM (CAR) area. Note that much of the |
| CAR space is required by the MRC. The CAR space available to U-Boot |
| is normally at the start and typically extends to 1/4 or 1/2 of the |
| available size. |
| |
| config DCACHE_RAM_MRC_VAR_SIZE |
| hex |
| depends on HAVE_MRC |
| help |
| This is the amount of CAR (Cache as RAM) reserved for use by the |
| memory reference code. This depends on the implementation of the |
| memory reference code and must be set correctly or the board will |
| not boot. |
| |
| config HAVE_REFCODE |
| bool "Add a Reference Code binary" |
| help |
| Select this option to add a Reference Code binary to the resulting |
| U-Boot image. This is an Intel binary blob that handles system |
| initialisation, in this case the PCH and System Agent. |
| |
| Note: Without this binary (on platforms that need it such as |
| broadwell) U-Boot will be missing some critical setup steps. |
| Various peripherals may fail to work. |
| |
| config SMP |
| bool "Enable Symmetric Multiprocessing" |
| default n |
| help |
| Enable use of more than one CPU in U-Boot and the Operating System |
| when loaded. Each CPU will be started up and information can be |
| obtained using the 'cpu' command. If this option is disabled, then |
| only one CPU will be enabled regardless of the number of CPUs |
| available. |
| |
| config MAX_CPUS |
| int "Maximum number of CPUs permitted" |
| depends on SMP |
| default 4 |
| help |
| When using multi-CPU chips it is possible for U-Boot to start up |
| more than one CPU. The stack memory used by all of these CPUs is |
| pre-allocated so at present U-Boot wants to know the maximum |
| number of CPUs that may be present. Set this to at least as high |
| as the number of CPUs in your system (it uses about 4KB of RAM for |
| each CPU). |
| |
| config AP_STACK_SIZE |
| hex |
| depends on SMP |
| default 0x1000 |
| help |
| Each additional CPU started by U-Boot requires its own stack. This |
| option sets the stack size used by each CPU and directly affects |
| the memory used by this initialisation process. Typically 4KB is |
| enough space. |
| |
| config CPU_INTEL_TURBO_NOT_PACKAGE_SCOPED |
| bool |
| help |
| This option indicates that the turbo mode setting is not package |
| scoped. i.e. turbo_enable() needs to be called on not just the |
| bootstrap processor (BSP). |
| |
| config HAVE_VGA_BIOS |
| bool "Add a VGA BIOS image" |
| help |
| Select this option if you have a VGA BIOS image that you would |
| like to add to your ROM. |
| |
| config VGA_BIOS_FILE |
| string "VGA BIOS image filename" |
| depends on HAVE_VGA_BIOS |
| default "vga.bin" |
| help |
| The filename of the VGA BIOS image in the board directory. |
| |
| config VGA_BIOS_ADDR |
| hex "VGA BIOS image location" |
| depends on HAVE_VGA_BIOS |
| default 0xfff90000 |
| help |
| The location of VGA BIOS image in the SPI flash. For example, base |
| address of 0xfff90000 indicates that the image will be put at offset |
| 0x90000 from the beginning of a 1MB flash device. |
| |
| config HAVE_VBT |
| bool "Add a Video BIOS Table (VBT) image" |
| depends on HAVE_FSP |
| help |
| Select this option if you have a Video BIOS Table (VBT) image that |
| you would like to add to your ROM. This is normally required if you |
| are using an Intel FSP firmware that is complaint with spec 1.1 or |
| later to initialize the integrated graphics device (IGD). |
| |
| Video BIOS Table, or VBT, provides platform and board specific |
| configuration information to the driver that is not discoverable |
| or available through other means. By other means the most used |
| method here is to read EDID table from the attached monitor, over |
| Display Data Channel (DDC) using two pin I2C serial interface. VBT |
| configuration is related to display hardware and is available via |
| the ACPI OpRegion or, on older systems, in the PCI ROM (Option ROM). |
| |
| config VBT_FILE |
| string "Video BIOS Table (VBT) image filename" |
| depends on HAVE_VBT |
| default "vbt.bin" |
| help |
| The filename of the file to use as Video BIOS Table (VBT) image |
| in the board directory. |
| |
| config VBT_ADDR |
| hex "Video BIOS Table (VBT) image location" |
| depends on HAVE_VBT |
| default 0xfff90000 |
| help |
| The location of Video BIOS Table (VBT) image in the SPI flash. For |
| example, base address of 0xfff90000 indicates that the image will |
| be put at offset 0x90000 from the beginning of a 1MB flash device. |
| |
| config VIDEO_FSP |
| bool "Enable FSP framebuffer driver support" |
| depends on HAVE_VBT && DM_VIDEO |
| help |
| Turn on this option to enable a framebuffer driver when U-Boot is |
| using Video BIOS Table (VBT) image for FSP firmware to initialize |
| the integrated graphics device. |
| |
| config ROM_TABLE_ADDR |
| hex |
| default 0xf0000 |
| help |
| All x86 tables happen to like the address range from 0x0f0000 |
| to 0x100000. We use 0xf0000 as the starting address to store |
| those tables, including PIRQ routing table, Multi-Processor |
| table and ACPI table. |
| |
| config ROM_TABLE_SIZE |
| hex |
| default 0x10000 |
| |
| menu "System tables" |
| depends on !EFI && !SYS_COREBOOT |
| |
| config GENERATE_PIRQ_TABLE |
| bool "Generate a PIRQ table" |
| default n |
| help |
| Generate a PIRQ routing table for this board. The PIRQ routing table |
| is generated by U-Boot in the system memory from 0xf0000 to 0xfffff |
| at every 16-byte boundary with a PCI IRQ routing signature ("$PIR"). |
| It specifies the interrupt router information as well how all the PCI |
| devices' interrupt pins are wired to PIRQs. |
| |
| config GENERATE_SFI_TABLE |
| bool "Generate a SFI (Simple Firmware Interface) table" |
| help |
| The Simple Firmware Interface (SFI) provides a lightweight method |
| for platform firmware to pass information to the operating system |
| via static tables in memory. Kernel SFI support is required to |
| boot on SFI-only platforms. If you have ACPI tables then these are |
| used instead. |
| |
| U-Boot writes this table in write_sfi_table() just before booting |
| the OS. |
| |
| For more information, see http://simplefirmware.org |
| |
| config GENERATE_MP_TABLE |
| bool "Generate an MP (Multi-Processor) table" |
| default n |
| help |
| Generate an MP (Multi-Processor) table for this board. The MP table |
| provides a way for the operating system to support for symmetric |
| multiprocessing as well as symmetric I/O interrupt handling with |
| the local APIC and I/O APIC. |
| |
| config GENERATE_ACPI_TABLE |
| bool "Generate an ACPI (Advanced Configuration and Power Interface) table" |
| default n |
| select QFW if QEMU |
| help |
| The Advanced Configuration and Power Interface (ACPI) specification |
| provides an open standard for device configuration and management |
| by the operating system. It defines platform-independent interfaces |
| for configuration and power management monitoring. |
| |
| endmenu |
| |
| config HAVE_ACPI_RESUME |
| bool "Enable ACPI S3 resume" |
| select ENABLE_MRC_CACHE |
| help |
| Select this to enable ACPI S3 resume. S3 is an ACPI-defined sleeping |
| state where all system context is lost except system memory. U-Boot |
| is responsible for restoring the machine state as it was before sleep. |
| It needs restore the memory controller, without overwriting memory |
| which is not marked as reserved. For the peripherals which lose their |
| registers, U-Boot needs to write the original value. When everything |
| is done, U-Boot needs to find out the wakeup vector provided by OSes |
| and jump there. |
| |
| config S3_VGA_ROM_RUN |
| bool "Re-run VGA option ROMs on S3 resume" |
| depends on HAVE_ACPI_RESUME |
| help |
| Execute VGA option ROMs in U-Boot when resuming from S3. Normally |
| this is needed when graphics console is being used in the kernel. |
| |
| Turning it off can reduce some resume time, but be aware that your |
| graphics console won't work without VGA options ROMs. Set it to N |
| if your kernel is only on a serial console. |
| |
| config STACK_SIZE |
| hex |
| depends on HAVE_ACPI_RESUME |
| default 0x1000 |
| help |
| Estimated U-Boot's runtime stack size that needs to be reserved |
| during an ACPI S3 resume. |
| |
| config MAX_PIRQ_LINKS |
| int |
| default 8 |
| help |
| This variable specifies the number of PIRQ interrupt links which are |
| routable. On most older chipsets, this is 4, PIRQA through PIRQD. |
| Some newer chipsets offer more than four links, commonly up to PIRQH. |
| |
| config IRQ_SLOT_COUNT |
| int |
| default 128 |
| help |
| U-Boot can support up to 254 IRQ slot info in the PIRQ routing table |
| which in turns forms a table of exact 4KiB. The default value 128 |
| should be enough for most boards. If this does not fit your board, |
| change it according to your needs. |
| |
| config PCIE_ECAM_BASE |
| hex |
| default 0xe0000000 |
| help |
| This is the memory-mapped address of PCI configuration space, which |
| is only available through the Enhanced Configuration Access |
| Mechanism (ECAM) with PCI Express. It can be set up almost |
| anywhere. Before it is set up, it is possible to access PCI |
| configuration space through I/O access, but memory access is more |
| convenient. Using this, PCI can be scanned and configured. This |
| should be set to a region that does not conflict with memory |
| assigned to PCI devices - i.e. the memory and prefetch regions, as |
| passed to pci_set_region(). |
| |
| config PCIE_ECAM_SIZE |
| hex |
| default 0x10000000 |
| help |
| This is the size of memory-mapped address of PCI configuration space, |
| which is only available through the Enhanced Configuration Access |
| Mechanism (ECAM) with PCI Express. Each bus consumes 1 MiB memory, |
| so a default 0x10000000 size covers all of the 256 buses which is the |
| maximum number of PCI buses as defined by the PCI specification. |
| |
| config I8259_PIC |
| bool "Enable Intel 8259 compatible interrupt controller" |
| default y |
| help |
| Intel 8259 ISA compatible chipset incorporates two 8259 (master and |
| slave) interrupt controllers. Include this to have U-Boot set up |
| the interrupt correctly. |
| |
| config APIC |
| bool "Enable Intel Advanced Programmable Interrupt Controller" |
| default y |
| help |
| The (A)dvanced (P)rogrammable (I)nterrupt (C)ontroller is responsible |
| for catching interrupts and distributing them to one or more CPU |
| cores. In most cases there are some LAPICs (local) for each core and |
| one I/O APIC. This conjunction is found on most modern x86 systems. |
| |
| config PINCTRL_ICH6 |
| bool |
| help |
| Intel ICH6 compatible chipset pinctrl driver. It needs to work |
| together with the ICH6 compatible gpio driver. |
| |
| config I8254_TIMER |
| bool |
| default y |
| help |
| Intel 8254 timer contains three counters which have fixed uses. |
| Include this to have U-Boot set up the timer correctly. |
| |
| config SEABIOS |
| bool "Support booting SeaBIOS" |
| help |
| SeaBIOS is an open source implementation of a 16-bit X86 BIOS. |
| It can run in an emulator or natively on X86 hardware with the use |
| of coreboot/U-Boot. By turning on this option, U-Boot prepares |
| all the configuration tables that are necessary to boot SeaBIOS. |
| |
| Check http://www.seabios.org/SeaBIOS for details. |
| |
| config HIGH_TABLE_SIZE |
| hex "Size of configuration tables which reside in high memory" |
| default 0x10000 |
| depends on SEABIOS |
| help |
| SeaBIOS itself resides in E seg and F seg, where U-Boot puts all |
| configuration tables like PIRQ/MP/ACPI. To avoid conflicts, U-Boot |
| puts a copy of configuration tables in high memory region which |
| is reserved on the stack before relocation. The region size is |
| determined by this option. |
| |
| Increse it if the default size does not fit the board's needs. |
| This is most likely due to a large ACPI DSDT table is used. |
| |
| endmenu |
| |