1 files changed, 96 insertions, 88 deletions

diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 981200830432..fa6dc4dd3b19 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -4,16 +4,13 @@
 mainmenu "Linux/Xtensa Kernel Configuration"
 
 config FRAME_POINTER
-        bool
-        default n
+        def_bool n
 
 config ZONE_DMA
-        bool
-        default y
+        def_bool y
 
 config XTENSA
-        bool
-        default y
+        def_bool y
         select HAVE_IDE
         help
           Xtensa processors are 32-bit RISC machines designed by Tensilica
@@ -24,28 +21,25 @@ config XTENSA
           a home page at <http://xtensa.sourceforge.net/>.
 
 config RWSEM_XCHGADD_ALGORITHM
-        bool
-        default y
+        def_bool y
 
 config GENERIC_FIND_NEXT_BIT
-        bool
-        default y
+        def_bool y
 
 config GENERIC_HWEIGHT
-        bool
-        default y
+        def_bool y
 
 config GENERIC_HARDIRQS
-        bool
-        default y
+        def_bool y
+
+config GENERIC_GPIO
+        def_bool y
 
 config ARCH_HAS_ILOG2_U32
-        bool
-        default n
+        def_bool n
 
 config ARCH_HAS_ILOG2_U64
-        bool
-        default n
+        def_bool n
 
 config NO_IOPORT
         def_bool y
@@ -54,9 +48,18 @@ config HZ
         int
         default 100
 
+config GENERIC_TIME
+        def_bool y
+
 source "init/Kconfig"
 source "kernel/Kconfig.freezer"
 
+config MMU
+        def_bool n
+
+config VARIANT_IRQ_SWITCH
+        def_bool n
+
 menu "Processor type and features"
 
 choice
@@ -65,38 +68,41 @@ choice
 
 config XTENSA_VARIANT_FSF
         bool "fsf - default (not generic) configuration"
+        select MMU
 
 config XTENSA_VARIANT_DC232B
         bool "dc232b - Diamond 232L Standard Core Rev.B (LE)"
+        select MMU
         help
-        This variant refers to Tensilica's Diamond 232L Standard core Rev.B (LE).
-endchoice
+          This variant refers to Tensilica's Diamond 232L Standard core Rev.B (LE).
 
-config MMU
-        bool
-        default y
+config XTENSA_VARIANT_S6000
+        bool "s6000 - Stretch software configurable processor"
+        select VARIANT_IRQ_SWITCH
+        select ARCH_REQUIRE_GPIOLIB
+endchoice
 
 config XTENSA_UNALIGNED_USER
         bool "Unaligned memory access in use space"
-        ---help---
-           The Xtensa architecture currently does not handle unaligned
-           memory accesses in hardware but through an exception handler.
-           Per default, unaligned memory accesses are disabled in user space.
+        help
+          The Xtensa architecture currently does not handle unaligned
+          memory accesses in hardware but through an exception handler.
+          Per default, unaligned memory accesses are disabled in user space.
 
-           Say Y here to enable unaligned memory access in user space.
+          Say Y here to enable unaligned memory access in user space.
 
 config PREEMPT
         bool "Preemptible Kernel"
-        ---help---
-           This option reduces the latency of the kernel when reacting to
-           real-time or interactive events by allowing a low priority process to
-           be preempted even if it is in kernel mode executing a system call.
-           Unfortunately the kernel code has some race conditions if both
-           CONFIG_SMP and CONFIG_PREEMPT are enabled, so this option is
-           currently disabled if you are building an SMP kernel.
+        help
+          This option reduces the latency of the kernel when reacting to
+          real-time or interactive events by allowing a low priority process to
+          be preempted even if it is in kernel mode executing a system call.
+          Unfortunately the kernel code has some race conditions if both
+          CONFIG_SMP and CONFIG_PREEMPT are enabled, so this option is
+          currently disabled if you are building an SMP kernel.
 
-           Say Y here if you are building a kernel for a desktop, embedded
-           or real-time system.  Say N if you are unsure.
+          Say Y here if you are building a kernel for a desktop, embedded
+          or real-time system.  Say N if you are unsure.
 
 config MATH_EMULATION
         bool "Math emulation"
@@ -105,6 +111,32 @@ config MATH_EMULATION
 
 endmenu
 
+config XTENSA_CALIBRATE_CCOUNT
+        def_bool n
+        help
+          On some platforms (XT2000, for example), the CPU clock rate can
+          vary.  The frequency can be determined, however, by measuring
+          against a well known, fixed frequency, such as an UART oscillator.
+
+config SERIAL_CONSOLE
+        def_bool n
+
+config XTENSA_ISS_NETWORK
+        def_bool n
+
+menu "Bus options"
+
+config PCI
+        bool "PCI support"
+        default y
+        help
+          Find out whether you have a PCI motherboard. PCI is the name of a
+          bus system, i.e. the way the CPU talks to the other stuff inside
+          your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
+          VESA. If you have PCI, say Y, otherwise N.
+
+source "drivers/pci/Kconfig"
+
 menu "Platform options"
 
 choice
@@ -113,33 +145,35 @@ choice
 
 config XTENSA_PLATFORM_ISS
         bool "ISS"
+        select XTENSA_CALIBRATE_CCOUNT
+        select SERIAL_CONSOLE
+        select XTENSA_ISS_NETWORK
         help
           ISS is an acronym for Tensilica's Instruction Set Simulator.
 
 config XTENSA_PLATFORM_XT2000
         bool "XT2000"
+        select XTENSA_CALIBRATE_CCOUNT
+        select PCI
         help
           XT2000 is the name of Tensilica's feature-rich emulation platform.
           This hardware is capable of running a full Linux distribution.
 
-endchoice
+config XTENSA_PLATFORM_S6105
+        bool "S6105"
+        select SERIAL_CONSOLE
 
+endchoice
 
-config XTENSA_CALIBRATE_CCOUNT
-        bool "Auto calibration of the CPU clock rate"
-        ---help---
-          On some platforms (XT2000, for example), the CPU clock rate can
-          vary.  The frequency can be determined, however, by measuring
-          against a well known, fixed frequency, such as an UART oscillator.
 
 config XTENSA_CPU_CLOCK
         int "CPU clock rate [MHz]"
         depends on !XTENSA_CALIBRATE_CCOUNT
-        default "16"
+        default 16
 
 config GENERIC_CALIBRATE_DELAY
         bool "Auto calibration of the BogoMIPS value"
-        ---help---
+        help
           The BogoMIPS value can easily be derived from the CPU frequency.
 
 config CMDLINE_BOOL
@@ -156,52 +190,27 @@ config CMDLINE
           time by entering them here. As a minimum, you should specify the
           memory size and the root device (e.g., mem=64M root=/dev/nfs).
 
-config SERIAL_CONSOLE
-        bool
-        depends on XTENSA_PLATFORM_ISS
-        default y
-
-config XTENSA_ISS_NETWORK
-        bool
-        depends on XTENSA_PLATFORM_ISS
-        default y
-
 source "mm/Kconfig"
 
 endmenu
 
-menu "Bus options"
-
-config PCI
-        bool "PCI support" if !XTENSA_PLATFORM_ISS
-        depends on !XTENSA_PLATFORM_ISS
-        default y
+config HOTPLUG
+        bool "Support for hot-pluggable devices"
         help
-          Find out whether you have a PCI motherboard. PCI is the name of a
-          bus system, i.e. the way the CPU talks to the other stuff inside
-          your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
-          VESA. If you have PCI, say Y, otherwise N.
+          Say Y here if you want to plug devices into your computer while
+          the system is running, and be able to use them quickly.  In many
+          cases, the devices can likewise be unplugged at any time too.
 
-source "drivers/pci/Kconfig"
+          One well known example of this is PCMCIA- or PC-cards, credit-card
+          size devices such as network cards, modems or hard drives which are
+          plugged into slots found on all modern laptop computers.  Another
+          example, used on modern desktops as well as laptops, is USB.
 
-config HOTPLUG
-
-        bool "Support for hot-pluggable devices"
-        ---help---
-        Say Y here if you want to plug devices into your computer while
-        the system is running, and be able to use them quickly.  In many
-        cases, the devices can likewise be unplugged at any time too.
-
-        One well known example of this is PCMCIA- or PC-cards, credit-card
-        size devices such as network cards, modems or hard drives which are
-        plugged into slots found on all modern laptop computers.  Another
-        example, used on modern desktops as well as laptops, is USB.
-
-        Enable HOTPLUG and build a modular kernel.  Get agent software
-        (from <http://linux-hotplug.sourceforge.net/>) and install it.
-        Then your kernel will automatically call out to a user mode "policy
-        agent" (/sbin/hotplug) to load modules and set up software needed
-        to use devices as you hotplug them.
+          Enable HOTPLUG and build a modular kernel.  Get agent software
+          (from <http://linux-hotplug.sourceforge.net/>) and install it.
+          Then your kernel will automatically call out to a user mode "policy
+          agent" (/sbin/hotplug) to load modules and set up software needed
+          to use devices as you hotplug them.
 
 source "drivers/pcmcia/Kconfig"
 
@@ -213,9 +222,8 @@ menu "Executable file formats"
 
 # only elf supported
 config KCORE_ELF
-        bool
+        def_bool y
         depends on PROC_FS
-        default y
         help
           If you enabled support for /proc file system then the file
           /proc/kcore will contain the kernel core image in ELF format. This
@@ -240,7 +248,7 @@ source "fs/Kconfig"
 menu "Xtensa initrd options"
         depends on BLK_DEV_INITRD
 
-        config EMBEDDED_RAMDISK
+config EMBEDDED_RAMDISK
         bool "Embed root filesystem ramdisk into the kernel"
 
 config EMBEDDED_RAMDISK_IMAGE