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217 lines
5.5 KiB
217 lines
5.5 KiB
# SPDX-License-Identifier: GPL-2.0-only |
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config MICROBLAZE |
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def_bool y |
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select ARCH_32BIT_OFF_T |
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select ARCH_NO_SWAP |
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select ARCH_HAS_DMA_PREP_COHERENT |
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select ARCH_HAS_GCOV_PROFILE_ALL |
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select ARCH_HAS_SYNC_DMA_FOR_CPU |
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select ARCH_HAS_SYNC_DMA_FOR_DEVICE |
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select ARCH_MIGHT_HAVE_PC_PARPORT |
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select ARCH_WANT_IPC_PARSE_VERSION |
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select BUILDTIME_TABLE_SORT |
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select TIMER_OF |
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select CLONE_BACKWARDS3 |
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select COMMON_CLK |
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select DMA_DIRECT_REMAP |
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select GENERIC_ATOMIC64 |
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select GENERIC_CPU_DEVICES |
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select GENERIC_IDLE_POLL_SETUP |
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select GENERIC_IRQ_PROBE |
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select GENERIC_IRQ_SHOW |
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select GENERIC_PCI_IOMAP |
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select GENERIC_SCHED_CLOCK |
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select HAVE_ARCH_HASH |
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select HAVE_ARCH_KGDB |
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select HAVE_ARCH_SECCOMP |
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select HAVE_DEBUG_KMEMLEAK |
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select HAVE_DMA_CONTIGUOUS |
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select HAVE_DYNAMIC_FTRACE |
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select HAVE_FTRACE_MCOUNT_RECORD |
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select HAVE_FUNCTION_GRAPH_TRACER |
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select HAVE_FUNCTION_TRACER |
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select HAVE_PCI |
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select IRQ_DOMAIN |
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select XILINX_INTC |
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select MODULES_USE_ELF_RELA |
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select OF |
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select OF_EARLY_FLATTREE |
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select PCI_DOMAINS_GENERIC if PCI |
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select PCI_SYSCALL if PCI |
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select VIRT_TO_BUS |
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select CPU_NO_EFFICIENT_FFS |
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select MMU_GATHER_NO_RANGE |
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select SPARSE_IRQ |
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select SET_FS |
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# Endianness selection |
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choice |
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prompt "Endianness selection" |
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default CPU_LITTLE_ENDIAN |
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help |
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microblaze architectures can be configured for either little or |
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big endian formats. Be sure to select the appropriate mode. |
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config CPU_BIG_ENDIAN |
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bool "Big endian" |
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config CPU_LITTLE_ENDIAN |
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bool "Little endian" |
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endchoice |
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config ZONE_DMA |
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def_bool y |
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config ARCH_HAS_ILOG2_U32 |
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def_bool n |
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config ARCH_HAS_ILOG2_U64 |
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def_bool n |
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config GENERIC_HWEIGHT |
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def_bool y |
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config GENERIC_CALIBRATE_DELAY |
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def_bool y |
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config GENERIC_CSUM |
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def_bool y |
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config STACKTRACE_SUPPORT |
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def_bool y |
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config LOCKDEP_SUPPORT |
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def_bool y |
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source "arch/microblaze/Kconfig.platform" |
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menu "Processor type and features" |
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source "kernel/Kconfig.hz" |
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config MMU |
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def_bool y |
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comment "Boot options" |
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config CMDLINE_BOOL |
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bool "Default bootloader kernel arguments" |
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config CMDLINE |
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string "Default kernel command string" |
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depends on CMDLINE_BOOL |
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default "console=ttyUL0,115200" |
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help |
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On some architectures there is currently no way for the boot loader |
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to pass arguments to the kernel. For these architectures, you should |
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supply some command-line options at build time by entering them |
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here. |
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config CMDLINE_FORCE |
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bool "Force default kernel command string" |
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depends on CMDLINE_BOOL |
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default n |
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help |
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Set this to have arguments from the default kernel command string |
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override those passed by the boot loader. |
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endmenu |
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menu "Kernel features" |
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config NR_CPUS |
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int |
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default "1" |
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config ADVANCED_OPTIONS |
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bool "Prompt for advanced kernel configuration options" |
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help |
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This option will enable prompting for a variety of advanced kernel |
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configuration options. These options can cause the kernel to not |
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work if they are set incorrectly, but can be used to optimize certain |
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aspects of kernel memory management. |
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Unless you know what you are doing, say N here. |
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comment "Default settings for advanced configuration options are used" |
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depends on !ADVANCED_OPTIONS |
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config HIGHMEM |
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bool "High memory support" |
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select KMAP_LOCAL |
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help |
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The address space of Microblaze processors is only 4 Gigabytes large |
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and it has to accommodate user address space, kernel address |
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space as well as some memory mapped IO. That means that, if you |
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have a large amount of physical memory and/or IO, not all of the |
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memory can be "permanently mapped" by the kernel. The physical |
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memory that is not permanently mapped is called "high memory". |
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If unsure, say n. |
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config LOWMEM_SIZE_BOOL |
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bool "Set maximum low memory" |
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depends on ADVANCED_OPTIONS |
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help |
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This option allows you to set the maximum amount of memory which |
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will be used as "low memory", that is, memory which the kernel can |
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access directly, without having to set up a kernel virtual mapping. |
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This can be useful in optimizing the layout of kernel virtual |
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memory. |
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Say N here unless you know what you are doing. |
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config LOWMEM_SIZE |
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hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL |
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default "0x30000000" |
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config MANUAL_RESET_VECTOR |
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hex "Microblaze reset vector address setup" |
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default "0x0" |
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help |
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Set this option to have the kernel override the CPU Reset vector. |
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If zero, no change will be made to the MicroBlaze reset vector at |
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address 0x0. |
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If non-zero, a jump instruction to this address, will be written |
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to the reset vector at address 0x0. |
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If you are unsure, set it to default value 0x0. |
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config KERNEL_START_BOOL |
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bool "Set custom kernel base address" |
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depends on ADVANCED_OPTIONS |
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help |
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This option allows you to set the kernel virtual address at which |
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the kernel will map low memory (the kernel image will be linked at |
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this address). This can be useful in optimizing the virtual memory |
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layout of the system. |
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Say N here unless you know what you are doing. |
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config KERNEL_START |
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hex "Virtual address of kernel base" if KERNEL_START_BOOL |
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default "0xc0000000" |
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config TASK_SIZE_BOOL |
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bool "Set custom user task size" |
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depends on ADVANCED_OPTIONS |
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help |
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This option allows you to set the amount of virtual address space |
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allocated to user tasks. This can be useful in optimizing the |
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virtual memory layout of the system. |
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Say N here unless you know what you are doing. |
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config TASK_SIZE |
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hex "Size of user task space" if TASK_SIZE_BOOL |
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default "0x80000000" |
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endmenu |
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menu "Bus Options" |
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config PCI_XILINX |
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bool "Xilinx PCI host bridge support" |
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depends on PCI |
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endmenu
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