Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

menu "Kernel hacking"

config TRACE_IRQFLAGS_SUPPORT
        bool
        default y

source "lib/Kconfig.debug"

config SH_STANDARD_BIOS
        bool "Use LinuxSH standard BIOS"
        help
          Say Y here if your target has the gdb-sh-stub
          package from www.m17n.org (or any conforming standard LinuxSH BIOS)
          in FLASH or EPROM.  The kernel will use standard BIOS calls during
          boot for various housekeeping tasks (including calls to read and
          write characters to a system console, get a MAC address from an
          on-board Ethernet interface, and shut down the hardware).  Note this
          does not work with machines with an existing operating system in
          mask ROM and no flash (WindowsCE machines fall in this category).
          If unsure, say N.

config EARLY_SCIF_CONSOLE
        bool "Use early SCIF console"
        help
          This enables an early console using a fixed SCIF port. This can
          be used by platforms that are either not running the SH
          standard BIOS, or do not wish to use the BIOS callbacks for the
          serial I/O.

config EARLY_SCIF_CONSOLE_PORT
        hex
        depends on EARLY_SCIF_CONSOLE
        default "0xffe00000" if CPU_SUBTYPE_SH7780
        default "0xffea0000" if CPU_SUBTYPE_SH7785
        default "0xfffe9800" if CPU_SUBTYPE_SH7206
        default "0xf8420000" if CPU_SUBTYPE_SH7619
        default "0xa4400000" if CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7705
        default "0xa4430000" if CPU_SUBTYPE_SH7720
        default "0xffc30000" if CPU_SUBTYPE_SHX3
        default "0xffe80000" if CPU_SH4
        default "0x00000000"

config EARLY_PRINTK
        bool "Early printk support"
        depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE
        help
          Say Y here to redirect kernel printk messages to the serial port
          used by the SH-IPL bootloader, starting very early in the boot
          process and ending when the kernel's serial console is initialised.
          This option is only useful porting the kernel to a new machine,
          when the kernel may crash or hang before the serial console is
          initialised. If unsure, say N.

          On devices that are running SH-IPL and want to keep the port
          initialization consistent while not using the BIOS callbacks,
          select both the EARLY_SCIF_CONSOLE and SH_STANDARD_BIOS, using
          the kernel command line option to toggle back and forth.

config DEBUG_BOOTMEM
        depends on DEBUG_KERNEL
        bool "Debug BOOTMEM initialization"

config DEBUG_STACKOVERFLOW
        bool "Check for stack overflows"
        depends on DEBUG_KERNEL
        help
          This option will cause messages to be printed if free stack space
          drops below a certain limit.

config DEBUG_STACK_USAGE
        bool "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 4KSTACKS
        bool "Use 4Kb for kernel stacks instead of 8Kb"
        depends on DEBUG_KERNEL
        help
          If you say Y here the kernel will use a 4Kb stacksize for the
          kernel stack attached to each process/thread. This facilitates
          running more threads on a system and also reduces the pressure
          on the VM subsystem for higher order allocations. This option
          will also use IRQ stacks to compensate for the reduced stackspace.

config IRQSTACKS
        bool "Use separate kernel stacks when processing interrupts"
        depends on DEBUG_KERNEL
        help
          If you say Y here the kernel will use separate kernel stacks
          for handling hard and soft interrupts.  This can help avoid
          overflowing the process kernel stacks.

config SH_KGDB
        bool "Include KGDB kernel debugger"
        select FRAME_POINTER
        select DEBUG_INFO
        depends on CPU_SH3 || CPU_SH4
        help
          Include in-kernel hooks for kgdb, the Linux kernel source level
          debugger.  See <http://kgdb.sourceforge.net/> for more information.
          Unless you are intending to debug the kernel, say N here.

menu "KGDB configuration options"
        depends on SH_KGDB

config MORE_COMPILE_OPTIONS
        bool "Add any additional compile options"
        help
          If you want to add additional CFLAGS to the kernel build, enable this
          option and then enter what you would like to add in the next question.
          Note however that -g is already appended with the selection of KGDB.

config COMPILE_OPTIONS
        string "Additional compile arguments"
        depends on MORE_COMPILE_OPTIONS

config KGDB_NMI
        bool "Enter KGDB on NMI"
        default n

config SH_KGDB_CONSOLE
        bool "Console messages through GDB"
        depends on !SERIAL_SH_SCI_CONSOLE && SERIAL_SH_SCI=y
        select SERIAL_CORE_CONSOLE
        default n

config KGDB_SYSRQ
        bool "Allow SysRq 'G' to enter KGDB"
        depends on MAGIC_SYSRQ
        default y

comment "Serial port setup"

config KGDB_DEFPORT
        int "Port number (ttySCn)"
        default "1"

config KGDB_DEFBAUD
        int "Baud rate"
        default "115200"

choice
        prompt "Parity"
        depends on SH_KGDB
        default KGDB_DEFPARITY_N

config KGDB_DEFPARITY_N
        bool "None"

config KGDB_DEFPARITY_E
        bool "Even"

config KGDB_DEFPARITY_O
        bool "Odd"

endchoice

choice
        prompt "Data bits"
        depends on SH_KGDB
        default KGDB_DEFBITS_8

config KGDB_DEFBITS_8
        bool "8"

config KGDB_DEFBITS_7
        bool "7"

endchoice

endmenu

endmenu