nios2: Build infrastructure
This patch adds Makefile and Kconfig files required for building a nios2 kernel. Signed-off-by: Ley Foon Tan <lftan@altera.com>
This commit is contained in:
Ley Foon Tan
parent
9cce02ec71
commit
2fc8483fdc
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config NIOS2
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def_bool y
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select ARCH_WANT_OPTIONAL_GPIOLIB
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select CLKSRC_OF
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select GENERIC_ATOMIC64
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select GENERIC_CLOCKEVENTS
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select GENERIC_CPU_DEVICES
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select GENERIC_IRQ_PROBE
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select GENERIC_IRQ_SHOW
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select HAVE_ARCH_TRACEHOOK
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select IRQ_DOMAIN
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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 SOC_BUS
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select SPARSE_IRQ
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select USB_ARCH_HAS_HCD if USB_SUPPORT
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config GENERIC_CSUM
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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_CALIBRATE_DELAY
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def_bool y
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config NO_IOPORT_MAP
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def_bool y
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config HAS_DMA
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def_bool y
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config FPU
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def_bool n
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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 TRACE_IRQFLAGS_SUPPORT
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def_bool n
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source "init/Kconfig"
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menu "Kernel features"
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source "kernel/Kconfig.preempt"
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source "kernel/Kconfig.freezer"
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source "kernel/Kconfig.hz"
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source "mm/Kconfig"
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config FORCE_MAX_ZONEORDER
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int "Maximum zone order"
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range 9 20
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default "11"
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help
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The kernel memory allocator divides physically contiguous memory
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blocks into "zones", where each zone is a power of two number of
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pages. This option selects the largest power of two that the kernel
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keeps in the memory allocator. If you need to allocate very large
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blocks of physically contiguous memory, then you may need to
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increase this value.
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This config option is actually maximum order plus one. For example,
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a value of 11 means that the largest free memory block is 2^10 pages.
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endmenu
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source "arch/nios2/platform/Kconfig.platform"
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menu "Processor type and features"
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config MMU
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def_bool y
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config NIOS2_ALIGNMENT_TRAP
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bool "Catch alignment trap"
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default y
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help
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Nios II CPUs cannot fetch/store data which is not bus aligned,
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i.e., a 2 or 4 byte fetch must start at an address divisible by
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2 or 4. Any non-aligned load/store instructions will be trapped and
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emulated in software if you say Y here, which has a performance
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impact.
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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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default y
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config CMDLINE
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string "Default kernel command string"
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default ""
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depends on CMDLINE_BOOL
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help
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On some platforms, there is currently no way for the boot loader to
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pass arguments to the kernel. For these platforms, you can supply
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some command-line options at build time by entering them here. In
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other cases you can specify kernel args so that you don't have
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to set them up in board prom initialization routines.
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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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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 NIOS2_CMDLINE_IGNORE_DTB
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bool "Ignore kernel command string from DTB"
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depends on !CMDLINE_FORCE
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default y
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help
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Set this to ignore the bootargs property from the devicetree's
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chosen node and fall back to CMDLINE if nothing is passed.
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config NIOS2_PASS_CMDLINE
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bool "Passed kernel command line from u-boot"
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default n
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help
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Use bootargs env variable from u-boot for kernel command line.
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will override "Default kernel command string".
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Say N if you are unsure.
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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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comment "Default settings for advanced configuration options are used"
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depends on !ADVANCED_OPTIONS
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config NIOS2_KERNEL_MMU_REGION_BASE_BOOL
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bool "Set custom kernel MMU region 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 virtual address of the kernel MMU region.
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Say N here unless you know what you are doing.
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config NIOS2_KERNEL_MMU_REGION_BASE
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hex "Virtual base address of the kernel MMU region " if NIOS2_KERNEL_MMU_REGION_BASE_BOOL
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default "0x80000000"
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help
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This option allows you to set the virtual base address of the kernel MMU region.
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config NIOS2_KERNEL_REGION_BASE_BOOL
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bool "Set custom kernel region 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 virtual address of the kernel region.
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Say N here unless you know what you are doing.
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config NIOS2_KERNEL_REGION_BASE
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hex "Virtual base address of the kernel region " if NIOS2_KERNEL_REGION_BASE_BOOL
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default "0xc0000000"
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config NIOS2_IO_REGION_BASE_BOOL
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bool "Set custom I/O region 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 virtual address of the I/O region.
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Say N here unless you know what you are doing.
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config NIOS2_IO_REGION_BASE
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hex "Virtual base address of the I/O region" if NIOS2_IO_REGION_BASE_BOOL
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default "0xe0000000"
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endmenu
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menu "Executable file formats"
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source "fs/Kconfig.binfmt"
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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/nios2/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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menu "Kernel hacking"
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config TRACE_IRQFLAGS_SUPPORT
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def_bool y
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source "lib/Kconfig.debug"
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config DEBUG_STACK_USAGE
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bool "Enable stack utilization instrumentation"
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depends on DEBUG_KERNEL
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help
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Enables the display of the minimum amount of free stack which each
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task has ever had available in the sysrq-T and sysrq-P debug output.
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This option will slow down process creation somewhat.
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endmenu
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@ -0,0 +1,73 @@
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# Copyright (C) 2013 Altera Corporation
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# Copyright (C) 1994, 95, 96, 2003 by Wind River Systems
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# Written by Fredrik Markstrom
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#
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# This file is included by the global makefile so that you can add your own
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# architecture-specific flags and dependencies. Remember to do have actions
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# for "archclean" cleaning up for this architecture.
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#
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# Nios2 port by Wind River Systems Inc trough:
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# fredrik.markstrom@gmail.com and ivarholmqvist@gmail.com
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UTS_SYSNAME = Linux
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export MMU
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LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
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KBUILD_CFLAGS += -pipe -D__linux__ -D__ELF__
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KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_MUL_SUPPORT),-mhw-mul,-mno-hw-mul)
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KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_MULX_SUPPORT),-mhw-mulx,-mno-hw-mulx)
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KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_DIV_SUPPORT),-mhw-div,-mno-hw-div)
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KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_FPU_SUPPORT),-mcustom-fpu-cfg=60-1,)
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KBUILD_CFLAGS += -fno-optimize-sibling-calls
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KBUILD_CFLAGS += -DUTS_SYSNAME=\"$(UTS_SYSNAME)\"
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KBUILD_CFLAGS += -fno-builtin
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KBUILD_CFLAGS += -G 0
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head-y := arch/nios2/kernel/head.o
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libs-y += arch/nios2/lib/ $(LIBGCC)
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core-y += arch/nios2/kernel/ arch/nios2/mm/
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core-y += arch/nios2/platform/
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INSTALL_PATH ?= /tftpboot
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nios2-boot := arch/$(ARCH)/boot
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BOOT_TARGETS = vmImage zImage
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PHONY += $(BOOT_TARGETS) install
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KBUILD_IMAGE := $(nios2-boot)/vmImage
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ifneq ($(CONFIG_NIOS2_DTB_SOURCE),"")
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core-y += $(nios2-boot)/
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endif
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all: vmImage
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archclean:
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$(Q)$(MAKE) $(clean)=$(nios2-boot)
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%.dtb:
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$(Q)$(MAKE) $(build)=$(nios2-boot) $(nios2-boot)/$@
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dtbs:
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$(Q)$(MAKE) $(build)=$(nios2-boot) $(nios2-boot)/$@
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$(BOOT_TARGETS): vmlinux
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$(Q)$(MAKE) $(build)=$(nios2-boot) $(nios2-boot)/$@
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install:
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$(Q)$(MAKE) $(build)=$(nios2-boot) BOOTIMAGE=$(KBUILD_IMAGE) install
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define archhelp
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echo '* vmImage - Kernel-only image for U-Boot ($(KBUILD_IMAGE))'
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echo ' install - Install kernel using'
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echo ' (your) ~/bin/$(INSTALLKERNEL) or'
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echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
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echo ' install to $$(INSTALL_PATH)'
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echo ' dtbs - Build device tree blobs for enabled boards'
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endef
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#
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# arch/nios2/boot/Makefile
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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UIMAGE_LOADADDR = $(shell $(NM) vmlinux | awk '$$NF == "_stext" {print $$1}')
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UIMAGE_ENTRYADDR = $(shell $(NM) vmlinux | awk '$$NF == "_start" {print $$1}')
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UIMAGE_COMPRESSION = gzip
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OBJCOPYFLAGS_vmlinux.bin := -O binary
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targets += vmlinux.bin vmlinux.gz vmImage
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$(obj)/vmlinux.bin: vmlinux FORCE
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$(call if_changed,objcopy)
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$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
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$(call if_changed,gzip)
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$(obj)/vmImage: $(obj)/vmlinux.gz
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$(call if_changed,uimage)
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@$(kecho) 'Kernel: $@ is ready'
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# Rule to build device tree blobs
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DTB_SRC := $(patsubst "%",%,$(CONFIG_NIOS2_DTB_SOURCE))
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# Make sure the generated dtb gets removed during clean
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extra-$(CONFIG_NIOS2_DTB_SOURCE_BOOL) += system.dtb
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$(obj)/system.dtb: $(DTB_SRC) FORCE
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$(call cmd,dtc)
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# Ensure system.dtb exists
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$(obj)/linked_dtb.o: $(obj)/system.dtb
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obj-$(CONFIG_NIOS2_DTB_SOURCE_BOOL) += linked_dtb.o
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targets += $(dtb-y)
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# Rule to build device tree blobs with make command
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$(obj)/%.dtb: $(src)/dts/%.dts FORCE
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$(call if_changed_dep,dtc)
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$(obj)/dtbs: $(addprefix $(obj)/, $(dtb-y))
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clean-files := *.dtb
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install:
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sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"
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@ -0,0 +1,52 @@
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#!/bin/sh
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# Copyright (C) 1995 by Linus Torvalds
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#
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# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
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#
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# "make install" script for nios2 architecture
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#
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# Arguments:
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# $1 - kernel version
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# $2 - kernel image file
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# $3 - kernel map file
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# $4 - default install path (blank if root directory)
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#
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verify () {
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if [ ! -f "$1" ]; then
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echo "" 1>&2
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echo " *** Missing file: $1" 1>&2
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echo ' *** You need to run "make" before "make install".' 1>&2
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echo "" 1>&2
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exit 1
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fi
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}
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# Make sure the files actually exist
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verify "$2"
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verify "$3"
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# User may have a custom install script
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if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
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if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
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# Default install - same as make zlilo
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if [ -f $4/vmlinuz ]; then
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mv $4/vmlinuz $4/vmlinuz.old
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fi
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if [ -f $4/System.map ]; then
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mv $4/System.map $4/System.old
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fi
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cat $2 > $4/vmlinuz
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cp $3 $4/System.map
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sync
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@ -0,0 +1,77 @@
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CONFIG_SYSVIPC=y
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CONFIG_NO_HZ_IDLE=y
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CONFIG_BSD_PROCESS_ACCT=y
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CONFIG_LOG_BUF_SHIFT=14
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CONFIG_SYSCTL_SYSCALL=y
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# CONFIG_ELF_CORE is not set
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# CONFIG_EPOLL is not set
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# CONFIG_SIGNALFD is not set
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# CONFIG_TIMERFD is not set
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# CONFIG_EVENTFD is not set
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# CONFIG_SHMEM is not set
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# CONFIG_AIO is not set
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CONFIG_EMBEDDED=y
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CONFIG_SLAB=y
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CONFIG_MODULES=y
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CONFIG_MODULE_UNLOAD=y
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CONFIG_NIOS2_MEM_BASE=0x10000000
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CONFIG_NIOS2_HW_MUL_SUPPORT=y
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CONFIG_NIOS2_HW_DIV_SUPPORT=y
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CONFIG_CUSTOM_CACHE_SETTINGS=y
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CONFIG_NIOS2_DCACHE_SIZE=0x8000
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CONFIG_NIOS2_ICACHE_SIZE=0x8000
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# CONFIG_NIOS2_CMDLINE_IGNORE_DTB is not set
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CONFIG_NIOS2_PASS_CMDLINE=y
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CONFIG_NET=y
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CONFIG_PACKET=y
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CONFIG_UNIX=y
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CONFIG_INET=y
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CONFIG_IP_MULTICAST=y
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CONFIG_IP_PNP=y
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CONFIG_IP_PNP_DHCP=y
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CONFIG_IP_PNP_BOOTP=y
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CONFIG_IP_PNP_RARP=y
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# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
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# CONFIG_INET_XFRM_MODE_TUNNEL is not set
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# CONFIG_INET_XFRM_MODE_BEET is not set
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# CONFIG_INET_LRO is not set
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# CONFIG_IPV6 is not set
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# CONFIG_WIRELESS is not set
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CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
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CONFIG_DEVTMPFS=y
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CONFIG_DEVTMPFS_MOUNT=y
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# CONFIG_FW_LOADER is not set
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CONFIG_MTD=y
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CONFIG_MTD_CMDLINE_PARTS=y
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CONFIG_MTD_BLOCK=y
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CONFIG_MTD_CFI=y
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CONFIG_MTD_CFI_INTELEXT=y
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CONFIG_MTD_CFI_AMDSTD=y
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CONFIG_MTD_PHYSMAP_OF=y
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CONFIG_BLK_DEV_LOOP=y
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CONFIG_NETDEVICES=y
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CONFIG_ALTERA_TSE=y
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CONFIG_MARVELL_PHY=y
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# CONFIG_WLAN is not set
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# CONFIG_INPUT_MOUSE is not set
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# CONFIG_SERIO_SERPORT is not set
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# CONFIG_VT is not set
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CONFIG_SERIAL_ALTERA_JTAGUART=y
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CONFIG_SERIAL_ALTERA_JTAGUART_CONSOLE=y
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CONFIG_SERIAL_ALTERA_UART=y
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# CONFIG_HW_RANDOM is not set
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# CONFIG_HWMON is not set
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# CONFIG_USB_SUPPORT is not set
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CONFIG_NEW_LEDS=y
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CONFIG_LEDS_CLASS=y
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CONFIG_LEDS_TRIGGERS=y
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CONFIG_LEDS_TRIGGER_HEARTBEAT=y
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# CONFIG_DNOTIFY is not set
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# CONFIG_INOTIFY_USER is not set
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CONFIG_JFFS2_FS=y
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CONFIG_NFS_FS=y
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CONFIG_NFS_V3_ACL=y
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CONFIG_ROOT_NFS=y
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CONFIG_SUNRPC_DEBUG=y
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CONFIG_DEBUG_INFO=y
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# CONFIG_ENABLE_WARN_DEPRECATED is not set
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@ -0,0 +1,66 @@
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generic-y += atomic.h
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generic-y += auxvec.h
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generic-y += barrier.h
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generic-y += bitops.h
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generic-y += bitsperlong.h
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generic-y += bug.h
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generic-y += bugs.h
|
||||
generic-y += clkdev.h
|
||||
generic-y += cputime.h
|
||||
generic-y += current.h
|
||||
generic-y += device.h
|
||||
generic-y += div64.h
|
||||
generic-y += dma.h
|
||||
generic-y += emergency-restart.h
|
||||
generic-y += errno.h
|
||||
generic-y += exec.h
|
||||
generic-y += fb.h
|
||||
generic-y += fcntl.h
|
||||
generic-y += ftrace.h
|
||||
generic-y += futex.h
|
||||
generic-y += hardirq.h
|
||||
generic-y += hash.h
|
||||
generic-y += hw_irq.h
|
||||
generic-y += ioctl.h
|
||||
generic-y += ioctls.h
|
||||
generic-y += ipcbuf.h
|
||||
generic-y += irq_regs.h
|
||||
generic-y += irq_work.h
|
||||
generic-y += kdebug.h
|
||||
generic-y += kmap_types.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += local.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += mman.h
|
||||
generic-y += module.h
|
||||
generic-y += msgbuf.h
|
||||
generic-y += param.h
|
||||
generic-y += pci.h
|
||||
generic-y += percpu.h
|
||||
generic-y += poll.h
|
||||
generic-y += posix_types.h
|
||||
generic-y += preempt.h
|
||||
generic-y += resource.h
|
||||
generic-y += scatterlist.h
|
||||
generic-y += sections.h
|
||||
generic-y += segment.h
|
||||
generic-y += sembuf.h
|
||||
generic-y += serial.h
|
||||
generic-y += shmbuf.h
|
||||
generic-y += shmparam.h
|
||||
generic-y += siginfo.h
|
||||
generic-y += signal.h
|
||||
generic-y += socket.h
|
||||
generic-y += sockios.h
|
||||
generic-y += spinlock.h
|
||||
generic-y += stat.h
|
||||
generic-y += statfs.h
|
||||
generic-y += termbits.h
|
||||
generic-y += termios.h
|
||||
generic-y += topology.h
|
||||
generic-y += trace_clock.h
|
||||
generic-y += types.h
|
||||
generic-y += unaligned.h
|
||||
generic-y += user.h
|
||||
generic-y += vga.h
|
||||
generic-y += xor.h
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
include include/uapi/asm-generic/Kbuild.asm
|
||||
|
||||
header-y += elf.h
|
||||
header-y += ucontext.h
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
#
|
||||
# Makefile for the nios2 linux kernel.
|
||||
#
|
||||
|
||||
extra-y += head.o
|
||||
extra-y += vmlinux.lds
|
||||
|
||||
obj-y += cpuinfo.o
|
||||
obj-y += entry.o
|
||||
obj-y += insnemu.o
|
||||
obj-y += irq.o
|
||||
obj-y += nios2_ksyms.o
|
||||
obj-y += process.o
|
||||
obj-y += prom.o
|
||||
obj-y += ptrace.o
|
||||
obj-y += setup.o
|
||||
obj-y += signal.o
|
||||
obj-y += sys_nios2.o
|
||||
obj-y += syscall_table.o
|
||||
obj-y += time.o
|
||||
obj-y += traps.o
|
||||
|
||||
obj-$(CONFIG_MODULES) += module.o
|
||||
obj-$(CONFIG_NIOS2_ALIGNMENT_TRAP) += misaligned.o
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
/*
|
||||
* Copyright (C) 2004 Microtronix Datacom Ltd
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU General
|
||||
* Public License. See the file COPYING in the main directory of this
|
||||
* archive for more details.
|
||||
*/
|
||||
|
||||
#include <linux/export.h>
|
||||
#include <linux/string.h>
|
||||
|
||||
/* string functions */
|
||||
|
||||
EXPORT_SYMBOL(memcpy);
|
||||
EXPORT_SYMBOL(memset);
|
||||
EXPORT_SYMBOL(memmove);
|
||||
|
||||
/*
|
||||
* libgcc functions - functions that are used internally by the
|
||||
* compiler... (prototypes are not correct though, but that
|
||||
* doesn't really matter since they're not versioned).
|
||||
*/
|
||||
#define DECLARE_EXPORT(name) extern void name(void); EXPORT_SYMBOL(name)
|
||||
|
||||
DECLARE_EXPORT(__gcc_bcmp);
|
||||
DECLARE_EXPORT(__divsi3);
|
||||
DECLARE_EXPORT(__moddi3);
|
||||
DECLARE_EXPORT(__modsi3);
|
||||
DECLARE_EXPORT(__udivmoddi4);
|
||||
DECLARE_EXPORT(__udivsi3);
|
||||
DECLARE_EXPORT(__umoddi3);
|
||||
DECLARE_EXPORT(__umodsi3);
|
||||
DECLARE_EXPORT(__muldi3);
|
||||
|
|
@ -0,0 +1,75 @@
|
|||
/*
|
||||
* Copyright (C) 2009 Thomas Chou <thomas@wytron.com.tw>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
*/
|
||||
#include <asm/page.h>
|
||||
#include <asm-generic/vmlinux.lds.h>
|
||||
#include <asm/cache.h>
|
||||
#include <asm/thread_info.h>
|
||||
|
||||
OUTPUT_FORMAT("elf32-littlenios2", "elf32-littlenios2", "elf32-littlenios2")
|
||||
|
||||
OUTPUT_ARCH(nios)
|
||||
ENTRY(_start) /* Defined in head.S */
|
||||
|
||||
jiffies = jiffies_64;
|
||||
|
||||
SECTIONS
|
||||
{
|
||||
. = CONFIG_NIOS2_MEM_BASE | CONFIG_NIOS2_KERNEL_REGION_BASE;
|
||||
|
||||
_text = .;
|
||||
_stext = .;
|
||||
HEAD_TEXT_SECTION
|
||||
.text : {
|
||||
TEXT_TEXT
|
||||
SCHED_TEXT
|
||||
LOCK_TEXT
|
||||
IRQENTRY_TEXT
|
||||
KPROBES_TEXT
|
||||
} =0
|
||||
_etext = .;
|
||||
|
||||
.got : {
|
||||
*(.got.plt)
|
||||
*(.igot.plt)
|
||||
*(.got)
|
||||
*(.igot)
|
||||
}
|
||||
|
||||
EXCEPTION_TABLE(L1_CACHE_BYTES)
|
||||
|
||||
. = ALIGN(PAGE_SIZE);
|
||||
__init_begin = .;
|
||||
INIT_TEXT_SECTION(PAGE_SIZE)
|
||||
INIT_DATA_SECTION(PAGE_SIZE)
|
||||
PERCPU_SECTION(L1_CACHE_BYTES)
|
||||
__init_end = .;
|
||||
|
||||
_sdata = .;
|
||||
RO_DATA_SECTION(PAGE_SIZE)
|
||||
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
|
||||
_edata = .;
|
||||
|
||||
BSS_SECTION(0, 0, 0)
|
||||
_end = .;
|
||||
|
||||
STABS_DEBUG
|
||||
DWARF_DEBUG
|
||||
NOTES
|
||||
|
||||
DISCARDS
|
||||
}
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
#
|
||||
# Makefile for Nios2-specific library files.
|
||||
#
|
||||
|
||||
lib-y += delay.o
|
||||
lib-y += memcpy.o
|
||||
lib-y += memmove.o
|
||||
lib-y += memset.o
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
#
|
||||
# Makefile for the Nios2-specific parts of the memory manager.
|
||||
#
|
||||
|
||||
obj-y += cacheflush.o
|
||||
obj-y += dma-mapping.o
|
||||
obj-y += extable.o
|
||||
obj-y += fault.o
|
||||
obj-y += init.o
|
||||
obj-y += ioremap.o
|
||||
obj-y += mmu_context.o
|
||||
obj-y += pgtable.o
|
||||
obj-y += tlb.o
|
||||
obj-y += uaccess.o
|
||||
|
|
@ -0,0 +1,129 @@
|
|||
menu "Platform options"
|
||||
|
||||
comment "Memory settings"
|
||||
|
||||
config NIOS2_MEM_BASE
|
||||
hex "Memory base address"
|
||||
default "0x00000000"
|
||||
help
|
||||
This is the physical address of the memory that the kernel will run
|
||||
from. This address is used to link the kernel and setup initial memory
|
||||
management. You should take the raw memory address without any MMU
|
||||
or cache bits set.
|
||||
Please not that this address is used directly so you have to manually
|
||||
do address translation if it's connected to a bridge.
|
||||
|
||||
comment "Device tree"
|
||||
|
||||
config NIOS2_DTB_AT_PHYS_ADDR
|
||||
bool "DTB at physical address"
|
||||
default n
|
||||
help
|
||||
When enabled you can select a physical address to load the dtb from.
|
||||
Normally this address is passed by a bootloader such as u-boot but
|
||||
using this you can use a devicetree without a bootloader.
|
||||
This way you can store a devicetree in NOR flash or an onchip rom.
|
||||
Please note that this address is used directly so you have to manually
|
||||
do address translation if it's connected to a bridge. Also take into
|
||||
account that when using an MMU you'd have to ad 0xC0000000 to your
|
||||
address
|
||||
|
||||
config NIOS2_DTB_PHYS_ADDR
|
||||
hex "DTB Address"
|
||||
depends on NIOS2_DTB_AT_PHYS_ADDR
|
||||
default "0xC0000000"
|
||||
help
|
||||
Physical address of a dtb blob.
|
||||
|
||||
config NIOS2_DTB_SOURCE_BOOL
|
||||
bool "Compile and link device tree into kernel image"
|
||||
default n
|
||||
help
|
||||
This allows you to specify a dts (device tree source) file
|
||||
which will be compiled and linked into the kernel image.
|
||||
|
||||
config NIOS2_DTB_SOURCE
|
||||
string "Device tree source file"
|
||||
depends on NIOS2_DTB_SOURCE_BOOL
|
||||
default ""
|
||||
help
|
||||
Absolute path to the device tree source (dts) file describing your
|
||||
system.
|
||||
|
||||
comment "Nios II instructions"
|
||||
|
||||
config NIOS2_HW_MUL_SUPPORT
|
||||
bool "Enable MUL instruction"
|
||||
default n
|
||||
help
|
||||
Set to true if you configured the Nios II to include the MUL
|
||||
instruction. This will enable the -mhw-mul compiler flag.
|
||||
|
||||
config NIOS2_HW_MULX_SUPPORT
|
||||
bool "Enable MULX instruction"
|
||||
default n
|
||||
help
|
||||
Set to true if you configured the Nios II to include the MULX
|
||||
instruction. Enables the -mhw-mulx compiler flag.
|
||||
|
||||
config NIOS2_HW_DIV_SUPPORT
|
||||
bool "Enable DIV instruction"
|
||||
default n
|
||||
help
|
||||
Set to true if you configured the Nios II to include the DIV
|
||||
instruction. Enables the -mhw-div compiler flag.
|
||||
|
||||
config NIOS2_FPU_SUPPORT
|
||||
bool "Custom floating point instr support"
|
||||
default n
|
||||
help
|
||||
Enables the -mcustom-fpu-cfg=60-1 compiler flag.
|
||||
|
||||
config NIOS2_CI_SWAB_SUPPORT
|
||||
bool "Byteswap custom instruction"
|
||||
default n
|
||||
help
|
||||
Use the byteswap (endian converter) Nios II custom instruction provided
|
||||
by Altera and which can be enabled in QSYS builder. This accelerates
|
||||
endian conversions in the kernel (e.g. ntohs).
|
||||
|
||||
config NIOS2_CI_SWAB_NO
|
||||
int "Byteswap custom instruction number" if NIOS2_CI_SWAB_SUPPORT
|
||||
default 0
|
||||
help
|
||||
Number of the instruction as configured in QSYS Builder.
|
||||
|
||||
comment "Cache settings"
|
||||
|
||||
config CUSTOM_CACHE_SETTINGS
|
||||
bool "Custom cache settings"
|
||||
help
|
||||
This option allows you to tweak the cache settings used during early
|
||||
boot (where the information from device tree is not yet available).
|
||||
There should be no reason to change these values. Linux will work
|
||||
perfectly fine, even if the Nios II is configured with smaller caches.
|
||||
|
||||
Say N here unless you know what you are doing.
|
||||
|
||||
config NIOS2_DCACHE_SIZE
|
||||
hex "D-Cache size" if CUSTOM_CACHE_SETTINGS
|
||||
range 0x200 0x10000
|
||||
default "0x800"
|
||||
help
|
||||
Maximum possible data cache size.
|
||||
|
||||
config NIOS2_DCACHE_LINE_SIZE
|
||||
hex "D-Cache line size" if CUSTOM_CACHE_SETTINGS
|
||||
range 0x10 0x20
|
||||
default "0x20"
|
||||
help
|
||||
Minimum possible data cache line size.
|
||||
|
||||
config NIOS2_ICACHE_SIZE
|
||||
hex "I-Cache size" if CUSTOM_CACHE_SETTINGS
|
||||
range 0x200 0x10000
|
||||
default "0x1000"
|
||||
help
|
||||
Maximum possible instruction cache size.
|
||||
|
||||
endmenu
|
||||
|
|
@ -0,0 +1 @@
|
|||
obj-y += platform.o
|
||||
Loading…
Reference in New Issue