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Message-Id: <1305144843-5058-8-git-send-email-msalter@redhat.com> Date: Wed, 11 May 2011 16:13:54 -0400 From: Mark Salter <msalter@...hat.com> To: linux-kernel@...r.kernel.org Subject: [PATCH 07/16] C6X: add toplevel configury and makefile Signed-off-by: Mark Salter <msalter@...hat.com> --- arch/c6x/Kconfig | 213 ++++++++++++++++++++++++++++++++++++++++++++++++ arch/c6x/Kconfig.debug | 25 ++++++ arch/c6x/Makefile | 33 ++++++++ 3 files changed, 271 insertions(+), 0 deletions(-) create mode 100644 arch/c6x/Kconfig create mode 100644 arch/c6x/Kconfig.debug create mode 100644 arch/c6x/Makefile diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig new file mode 100644 index 0000000..d4881c1 --- /dev/null +++ b/arch/c6x/Kconfig @@ -0,0 +1,213 @@ +# +# For a description of the syntax of this configuration file, +# see Documentation/kbuild/kconfig-language.txt. +# + +config TMS320C6X + def_bool y + select GENERIC_IRQ_SHOW + select HAVE_GENERIC_HARDIRQS + select GENERIC_FIND_FIRST_BIT + select GENERIC_FIND_NEXT_BIT + select GENERIC_FIND_LAST_BIT + select GENERIC_FIND_BIT_LE + +config MMU + def_bool n + +config ZONE_DMA + def_bool y + +config SBUS + def_bool n + +config FPU + def_bool n + +config HIGHMEM + def_bool n + +config NUMA + def_bool n + +config RWSEM_GENERIC_SPINLOCK + def_bool y + +config RWSEM_XCHGADD_ALGORITHM + def_bool n + +config GENERIC_CALIBRATE_DELAY + def_bool y + +config GENERIC_FIND_NEXT_BIT + def_bool y + +config GENERIC_HWEIGHT + def_bool y + +config GENERIC_TIME + def_bool y + +config GENERIC_CLOCKEVENTS + def_bool y + +config GENERIC_CLOCKEVENTS_BUILD + def_bool y + depends on GENERIC_CLOCKEVENTS + +config GENERIC_CLOCKEVENTS_BROADCAST + bool + +config GENERIC_BUG + def_bool y + +config COMMON_CLKDEV + def_bool y + +config BIG_KERNEL + bool "Build a big kernel" + help + The C6X function call instruction has a limited range of +/- 2MiB. + This is sufficient for most kernels, but some kernel configurations + with lots of compiled-in functionality may require a larger range + for function calls. Use this option to have the compiler generate + function calls with 32-bit range. This will make the kernel both + larger and slower. + + If unsure, say N. + +config XIP_KERNEL + bool "Kernel Execute-In-Place" + help + Execute-In-Place allows the kernel to run from non-volatile storage + directly addressable by the CPU, such as NOR flash. This saves RAM + space since the text section of the kernel is not loaded from flash + to RAM. Read-write sections, such as the data section and stack, + are still copied to RAM. The XIP kernel is not compressed since + it has to run directly from flash, so it will take more space to + store it. The flash address used to link the kernel object files, + and for storing it, is configuration dependent. Therefore, if you + say Y here, you must know the proper physical address where to + store the kernel image depending on your own flash memory usage. + + If unsure, say N. + +config XIP_KERNEL_TEXT_ADDR + hex "XIP Kernel Physical Location" + depends on XIP_KERNEL + default "0xB0000000" + help + This is the physical address where the kernel image will be + stored. This address is dependent on your own platform + device constraints. + +source "init/Kconfig" + +# Use the generic interrupt handling code in kernel/irq/ + +source "kernel/Kconfig.freezer" + +config CMDLINE + string "Kernel command line" + default "console=ttyS0,57600" + +config CPU_BIG_ENDIAN + bool "Build big-endian kernel" + help + Say Y if you plan on running a kernel in big-endian mode. + Note that your board must be properly built and your board + port must properly enable any big-endian related features + of your chipset/board/processor. + +config FORCE_MAX_ZONEORDER + int + default "13" + +menu "Processor type and features" + +config TMS320C64XPLUS + bool "TMS320C64X+" + select SERIAL_CORE + +config HVC_C6X + bool "HVC console (CIO)" + select HVC_DRIVER + def_bool y + +source "arch/c6x/platforms/Kconfig" + +config USE_RT_TIMER + bool "Compensate for lost ticks" + default n + +config SGMII + bool "Ethernet SGMII support" + default n + +config TMS320C64X_GEMAC_0 + bool "First Ethernet interface" + depends on TMS320C64X_GEMAC && SOC_TMS320C6472 + default y + +config TMS320C64X_GEMAC_1 + bool "Second Ethernet interface" + depends on TMS320C64X_GEMAC && SOC_TMS320C6472 + default n + +config TMS320C6X_CACHES_ON + bool "L2 cache support" + default y + +config KERNEL_RAM_BASE_ADDRESS + hex "Virtual address of memory base" + default 0xe0000000 if SOC_TMS320C6455 + default 0xe0000000 if SOC_TMS320C6457 + default 0xe0000000 if SOC_TMS320C6472 + default 0x80000000 + +source "mm/Kconfig" + +source "kernel/Kconfig.preempt" + +source "kernel/Kconfig.hz" +source "kernel/time/Kconfig" + +endmenu + +menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)" + +config PCI + bool "PCI support" + help + Support for PCI bus. +endmenu + +menu "Executable file formats" + +source "fs/Kconfig.binfmt" + +endmenu + +menu "Power management options" + +config PM + bool "Power Management support" + help + Support processor power management modes + +endmenu + +source "net/Kconfig" + +source "drivers/Kconfig" + +source "fs/Kconfig" + +source "security/Kconfig" + +source "crypto/Kconfig" + +source "lib/Kconfig" + +source "arch/c6x/Kconfig.debug" + diff --git a/arch/c6x/Kconfig.debug b/arch/c6x/Kconfig.debug new file mode 100644 index 0000000..49b18b2 --- /dev/null +++ b/arch/c6x/Kconfig.debug @@ -0,0 +1,25 @@ +menu "Kernel hacking" + +source "lib/Kconfig.debug" + +config EARLY_PRINTK + bool "Early printk" + default n + 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. After enabling this + feature, you must add "earlyprintk=hvc" to the command line (bootargs). + +config ACCESS_CHECK + bool "Check the user pointer address" + default y + help + Usually the pointer transfer from user space is checked to see if its + address is in the kernel space. + + Say N here to disable that check to improve the performance. + +endmenu diff --git a/arch/c6x/Makefile b/arch/c6x/Makefile new file mode 100644 index 0000000..3561875 --- /dev/null +++ b/arch/c6x/Makefile @@ -0,0 +1,33 @@ +# +# linux/arch/c6x/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. +# + +cflags-y := -D__linux__ -D__TMS320C6X__ + +cflags-$(CONFIG_TMS320C64XPLUS) += -D__TMS320C6XPLUS__ -march=c64x+ -msdata=none -mno-dsbt + +cflags-$(CONFIG_BIG_KERNEL) += -mlong-calls + +CFLAGS_MODULE += -mlong-calls + +KBUILD_CPPFLAGS += -I$(srctree)/arch/c6x/platforms/include -I$(obj)/arch/c6x/kernel + +KBUILD_CFLAGS += $(cflags-y) +KBUILD_AFLAGS += $(cflags-y) + +ifdef CONFIG_CPU_BIG_ENDIAN +KBUILD_CFLAGS += -mbig-endian +KBUILD_AFLAGS += -mbig-endian +LINKFLAGS += -mbig-endian +KBUILD_LDFLAGS += -mbig-endian +LDFLAGS += -EB +endif + +head-y := arch/c6x/kernel/head.o +core-y += arch/c6x/kernel/ arch/c6x/mm/ arch/c6x/platforms/ +libs-y += arch/c6x/lib/ + -- 1.6.2.5 -- 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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