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Message-ID: <OF2086513E.4B4F803C-ON482575D0.0022E294-482575D0.0023688F@sunplusct.com> Date: Tue, 9 Jun 2009 14:22:28 +0800 From: liqin.chen@...plusct.com To: linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org Cc: Arnd Bergmann <arnd@...db.de>, Andrew Morton <akpm@...ux-foundation.org>, torvalds@...ux-foundation.org Subject: [PATCH 01/27] score: create Kconfig Kconfig.debug Makefile >From 8737362d631454e26c559188fef4db5a0192ed24 Mon Sep 17 00:00:00 2001 From: Chen Liqin <liqin.chen@...plusct.com> Date: Tue, 9 Jun 2009 13:43:04 +0800 Signed-off-by: Chen Liqin <liqin.chen@...plusct.com> --- arch/score/Kconfig | 243 ++++++++++++++++++++++++++++++++++++++++++++++ arch/score/Kconfig.debug | 37 +++++++ arch/score/Makefile | 50 ++++++++++ 3 files changed, 330 insertions(+), 0 deletions(-) create mode 100644 arch/score/Kconfig create mode 100644 arch/score/Kconfig.debug create mode 100644 arch/score/Makefile diff --git a/arch/score/Kconfig b/arch/score/Kconfig new file mode 100644 index 0000000..9e09b6a --- /dev/null +++ b/arch/score/Kconfig @@ -0,0 +1,243 @@ +config SCORE + bool + default y + select EMBEDDED + +mainmenu "Linux/SCORE Kernel Configuration" + +menu "Machine selection" + +choice + prompt "System type" + default MACH_SPCT6600 + +config ARCH_SCORE7 + bool "SCORE7 processor" + select SYS_SUPPORTS_32BIT_KERNEL + select CPU_SCORE7 + select GENERIC_HAS_IOMAP + +config MACH_SPCT6600 + bool "SPCT6600 series based machines" + select SYS_SUPPORTS_32BIT_KERNEL + select CPU_SCORE7 + select GENERIC_HAS_IOMAP + +config SCORE_SIM + bool "Score simulator" + select SYS_SUPPORTS_32BIT_KERNEL + select CPU_SCORE7 + select GENERIC_HAS_IOMAP +endchoice + +endmenu + +config CPU_SCORE7 + bool + +config GENERIC_IOMAP + bool + default y + +config NO_DMA + bool + default y + +config RWSEM_GENERIC_SPINLOCK + bool + default y + +config GENERIC_FIND_NEXT_BIT + bool + default y + +config GENERIC_HWEIGHT + bool + default y + +config GENERIC_CALIBRATE_DELAY + bool + default y + +config GENERIC_CLOCKEVENTS + bool + default y + +config GENERIC_TIME + bool + default y + +config SCHED_NO_NO_OMIT_FRAME_POINTER + bool + default y + +config GENERIC_HARDIRQS_NO__DO_IRQ + bool + default y + +config GENERIC_SYSCALL_TABLE + bool + def_bool y + +config EARLY_PRINTK + bool "Early printk" if EMBEDDED + depends on SYS_HAS_EARLY_PRINTK + default y + help + This option enables special console drivers which allow the kernel + to print messages very early in the bootup process. + + This is useful for kernel debugging when your machine crashes very + early before the console code is initialized. For normal operation, + it is not recommended because it looks ugly on some machines and + doesn't cooperate with an X server. You should normally say N here, + unless you want to debug such a crash. + +config SYS_HAS_EARLY_PRINTK + bool + +config SCORE_L1_CACHE_SHIFT + int + default "5" + +menu "Kernel type" + +config 32BIT + bool + default y + +config PAGE_SIZE_4KB + bool + default y + +config GENERIC_HARDIRQS + bool + default y + +config ARCH_FLATMEM_ENABLE + bool + default y + +config ARCH_POPULATES_NODE_MAP + bool + default y + +source "mm/Kconfig" + +config MEMORY_START + hex + default 0xa0000000 + +source "kernel/time/Kconfig" + +config HZ + int + default 100 + +source "kernel/Kconfig.preempt" + +config KEXEC + bool "Kexec system call (EXPERIMENTAL)" + depends on EXPERIMENTAL + help + kexec is a system call that implements the ability to shutdown your + current kernel, and to start another kernel. It is like a reboot + but it is independent of the system firmware. And like a reboot + you can start any kernel with it, not just Linux. + + The name comes from the similarity to the exec system call. + + It is an ongoing process to be certain the hardware in a machine + is properly shutdown, so do not be surprised if this code does not + initially work for you. It may help to enable device hotplugging + support. As of this writing the exact hardware interface is + strongly in flux, so no good recommendation can be made. + +config SECCOMP + bool "Enable seccomp to safely compute untrusted bytecode" + depends on PROC_FS + default y + help + This kernel feature is useful for number crunching applications + that may need to compute untrusted bytecode during their + execution. By using pipes or other transports made available to + the process as file descriptors supporting the read/write + syscalls, it's possible to isolate those applications in + their own address space using seccomp. Once seccomp is + enabled via /proc/<pid>/seccomp, it cannot be disabled + and the task is only allowed to execute a few safe syscalls + defined by each seccomp mode. + + If unsure, say Y. Only embedded should say N here. + +endmenu + +config RWSEM_GENERIC_SPINLOCK + bool + default y + +config LOCKDEP_SUPPORT + bool + default y + +config STACKTRACE_SUPPORT + bool + default y + +source "init/Kconfig" + +config PROBE_INITRD_HEADER + bool "Probe initrd header created by addinitrd" + depends on BLK_DEV_INITRD + help + Probe initrd header at the last page of kernel image. + Say Y here if you are using arch/score/boot/addinitrd.c to + add initrd or initramfs image to the kernel image. + Otherwise, say N. + +menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" + +config MMU + bool + default y + +source "drivers/pcmcia/Kconfig" + +source "drivers/pci/hotplug/Kconfig" + +endmenu + +menu "Executable file formats" + +source "fs/Kconfig.binfmt" + +config SYSVIPC_COMPAT + bool + depends on COMPAT && SYSVIPC + default y + +endmenu + +menu "Power management options" + +config ARCH_SUSPEND_POSSIBLE + def_bool y + depends on !SMP + +source "kernel/power/Kconfig" + +endmenu + +source "net/Kconfig" + +source "drivers/Kconfig" + +source "fs/Kconfig" + +source "arch/score/Kconfig.debug" + +source "security/Kconfig" + +source "crypto/Kconfig" + +source "lib/Kconfig" diff --git a/arch/score/Kconfig.debug b/arch/score/Kconfig.debug new file mode 100644 index 0000000..451ed54 --- /dev/null +++ b/arch/score/Kconfig.debug @@ -0,0 +1,37 @@ +menu "Kernel hacking" + +config TRACE_IRQFLAGS_SUPPORT + bool + default y + +source "lib/Kconfig.debug" + +config CMDLINE + string "Default kernel command string" + default "" + help + On some platforms, there is currently no way for the boot loader to + pass arguments to the kernel. For these platforms, you can supply + some command-line options at build time by entering them here. In + other cases you can specify kernel args so that you don't have + to set them up in board prom initialization routines. + +config DEBUG_STACK_USAGE + bool "Enable stack utilization instrumentation" + depends on DEBUG_KERNEL + help + Enables the display of the minimum amount of free stack which each + task has ever had available in the sysrq-T and sysrq-P debug output. + + This option will slow down process creation somewhat. + +config RUNTIME_DEBUG + bool "Enable run-time debugging" + depends on DEBUG_KERNEL + help + If you say Y here, some debugging macros will do run-time checking. + If you say N here, those macros will mostly turn to no-ops. See + include/asm-score/debug.h for debuging macros. + If unsure, say N. + +endmenu diff --git a/arch/score/Makefile b/arch/score/Makefile new file mode 100644 index 0000000..b86ec22 --- /dev/null +++ b/arch/score/Makefile @@ -0,0 +1,50 @@ +# +# arch/score/Makefile +# +# 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. +# + +KBUILD_DEFCONFIG := spct6600_defconfig +CROSS_COMPILE := score-linux- + +# +# CPU-dependent compiler/assembler options for optimization. +# +cflags-y += -g -O2 -G0 -pipe -mel -mnhwloop -D__SCOREEL__ \ + -D__linux__ -ffunction-sections -ffreestanding + +# +# Board-dependent options and extra files +# +KBUILD_AFLAGS += $(cflags-y) +KBUILD_CFLAGS += $(cflags-y) +MODFLAGS += -mlong-calls +LDFLAGS += --oformat elf32-littlescore +LDFLAGS_vmlinux += -G0 -static -nostdlib +CLEAN_FILES += arch/score/kernel/vmlinux.lds + +# +# Choosing incompatible machines durings configuration will result in +# error messages during linking. Select a default linkscript if +# none has been choosen above. +# + +head-y := arch/score/kernel/head.o +libs-y += arch/score/lib/ +core-y += arch/score/kernel/ arch/score/mm/ + +boot := arch/score/boot + +vmlinux.bin: vmlinux + $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ + +archclean: + @$(MAKE) $(clean)=$(boot) + +define archhelp + echo ' vmlinux.bin - Raw binary boot image' + echo + echo ' These will be default as apropriate for a configured platform.' +endef -- 1.6.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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