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https://github.com/edk2-porting/linux-next.git
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e6ce1324e4
The device tree code is now in two pieces: some which can be used generically
on any platform which selects CONFIG_OF_FLATTREE, and some early which is used
at boot time on only a few architectures. This patch segregates the early
code so that only those architectures which care about it need compile it.
This also means that some of the requirements in the early code (such as
a cmd_line variable) that most architectures (e.g. X86) don't provide
can be ignored.
Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
[grant.likely@secretlab.ca: remove extra blank line addition]
[grant.likely@secretlab.ca: fixed incorrect #ifdef CONFIG_EARLY_FLATTREE check]
[grant.likely@secretlab.ca: Made OF_EARLY_FLATTREE select instead of depend
on OF_FLATTREE]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
295 lines
6.8 KiB
Plaintext
295 lines
6.8 KiB
Plaintext
config MICROBLAZE
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def_bool y
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select HAVE_MEMBLOCK
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select HAVE_FUNCTION_TRACER
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select HAVE_FUNCTION_TRACE_MCOUNT_TEST
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select HAVE_FUNCTION_GRAPH_TRACER
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select HAVE_DYNAMIC_FTRACE
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select HAVE_FTRACE_MCOUNT_RECORD
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select USB_ARCH_HAS_EHCI
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select ARCH_WANT_OPTIONAL_GPIOLIB
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select HAVE_OPROFILE
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select HAVE_ARCH_KGDB
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select HAVE_DMA_ATTRS
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select HAVE_DMA_API_DEBUG
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select TRACING_SUPPORT
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select OF
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select OF_EARLY_FLATTREE
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config SWAP
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def_bool n
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config RWSEM_GENERIC_SPINLOCK
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def_bool y
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config RWSEM_XCHGADD_ALGORITHM
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bool
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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_FIND_NEXT_BIT
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def_bool y
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config GENERIC_HWEIGHT
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def_bool y
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config GENERIC_HARDIRQS
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def_bool y
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config GENERIC_IRQ_PROBE
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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_TIME_VSYSCALL
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def_bool n
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config GENERIC_CLOCKEVENTS
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def_bool y
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config GENERIC_HARDIRQS_NO__DO_IRQ
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def_bool y
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config GENERIC_GPIO
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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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config HAVE_LATENCYTOP_SUPPORT
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def_bool y
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source "init/Kconfig"
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source "kernel/Kconfig.freezer"
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source "arch/microblaze/platform/Kconfig.platform"
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menu "Processor type and features"
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source "kernel/time/Kconfig"
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source "kernel/Kconfig.preempt"
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source "kernel/Kconfig.hz"
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config MMU
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bool "MMU support"
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default n
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config NO_MMU
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bool
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depends on !MMU
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default 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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config SECCOMP
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bool "Enable seccomp to safely compute untrusted bytecode"
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depends on PROC_FS
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default y
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help
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This kernel feature is useful for number crunching applications
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that may need to compute untrusted bytecode during their
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execution. By using pipes or other transports made available to
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the process as file descriptors supporting the read/write
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syscalls, it's possible to isolate those applications in
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their own address space using seccomp. Once seccomp is
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enabled via /proc/<pid>/seccomp, it cannot be disabled
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and the task is only allowed to execute a few safe syscalls
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defined by each seccomp mode.
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If unsure, say Y. Only embedded should say N here.
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endmenu
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menu "Advanced setup"
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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 XILINX_UNCACHED_SHADOW
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bool "Are you using uncached shadow for RAM ?"
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depends on ADVANCED_OPTIONS && !MMU
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default n
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help
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This is needed to be able to allocate uncachable memory regions.
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The feature requires the design to define the RAM memory controller
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window to be twice as large as the actual physical memory.
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config HIGHMEM_START_BOOL
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bool "Set high memory pool address"
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depends on ADVANCED_OPTIONS && HIGHMEM
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help
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This option allows you to set the base address of the kernel virtual
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area used to map high memory pages. This can be useful in
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optimizing the layout of kernel virtual memory.
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Say N here unless you know what you are doing.
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config HIGHMEM_START
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hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
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depends on MMU
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default "0xfe000000"
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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 && MMU
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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 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" if MMU
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default KERNEL_BASE_ADDR if !MMU
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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 && MMU
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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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choice
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prompt "Page size"
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default MICROBLAZE_4K_PAGES
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depends on ADVANCED_OPTIONS && !MMU
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help
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Select the kernel logical page size. Increasing the page size
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will reduce software overhead at each page boundary, allow
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hardware prefetch mechanisms to be more effective, and allow
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larger dma transfers increasing IO efficiency and reducing
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overhead. However the utilization of memory will increase.
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For example, each cached file will using a multiple of the
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page size to hold its contents and the difference between the
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end of file and the end of page is wasted.
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If unsure, choose 4K_PAGES.
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config MICROBLAZE_4K_PAGES
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bool "4k page size"
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config MICROBLAZE_8K_PAGES
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bool "8k page size"
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config MICROBLAZE_16K_PAGES
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bool "16k page size"
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config MICROBLAZE_32K_PAGES
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bool "32k page size"
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endchoice
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endmenu
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source "mm/Kconfig"
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menu "Exectuable file formats"
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source "fs/Kconfig.binfmt"
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endmenu
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menu "Bus Options"
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config PCI
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bool "PCI support"
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config PCI_DOMAINS
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def_bool PCI
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config PCI_SYSCALL
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def_bool PCI
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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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source "drivers/pci/Kconfig"
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endmenu
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source "net/Kconfig"
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source "drivers/Kconfig"
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source "fs/Kconfig"
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source "arch/microblaze/Kconfig.debug"
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source "security/Kconfig"
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source "crypto/Kconfig"
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source "lib/Kconfig"
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