Hexagon: Add configuration and makefiles for the Hexagon architecture.

Signed-off-by: Linas Vepstas <linas@codeaurora.org>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 220 insertions, 0 deletions

diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
new file mode 100644
index 000000000000..02513c2dd5ec
--- /dev/null
+++ b/arch/hexagon/Kconfig
@@ -0,0 +1,220 @@
+# Hexagon configuration
+comment "Linux Kernel Configuration for Hexagon"
+
+config HEXAGON
+        def_bool y
+        select HAVE_OPROFILE
+        select USE_GENERIC_SMP_HELPERS if SMP
+        # Other pending projects/to-do items.
+        # select HAVE_REGS_AND_STACK_ACCESS_API
+        # select HAVE_HW_BREAKPOINT if PERF_EVENTS
+        # select ARCH_HAS_CPU_IDLE_WAIT
+        # select ARCH_WANT_OPTIONAL_GPIOLIB
+        # select ARCH_REQUIRE_GPIOLIB
+        # select HAVE_CLK
+        # select IRQ_PER_CPU
+        select HAVE_IRQ_WORK
+        # select GENERIC_PENDING_IRQ if SMP
+        select GENERIC_ATOMIC64
+        select HAVE_PERF_EVENTS
+        select HAVE_GENERIC_HARDIRQS
+        select GENERIC_HARDIRQS_NO__DO_IRQ
+        select GENERIC_HARDIRQS_NO_DEPRECATED
+        # GENERIC_ALLOCATOR is used by dma_alloc_coherent()
+        select GENERIC_ALLOCATOR
+        select GENERIC_IRQ_SHOW
+        select HAVE_ARCH_KGDB
+        select HAVE_ARCH_TRACEHOOK
+        select NO_IOPORT
+        # mostly generic routines, with some accelerated ones
+        ---help---
+          Qualcomm Hexagon is a processor architecture designed for high
+          performance and low power across a wide variety of applications.
+
+config HEXAGON_ARCH_V1
+        bool
+
+config HEXAGON_ARCH_V2
+        bool
+
+config HEXAGON_ARCH_V3
+        bool
+
+config HEXAGON_ARCH_V4
+        bool
+
+config FRAME_POINTER
+        def_bool y
+
+config LOCKDEP_SUPPORT
+        def_bool y
+
+config PCI
+        def_bool n
+
+config EARLY_PRINTK
+        def_bool y
+
+config KTIME_SCALAR
+        def_bool y
+
+config MMU
+        def_bool y
+
+config TRACE_IRQFLAGS_SUPPORT
+        def_bool y
+
+config GENERIC_CSUM
+        def_bool y
+
+#
+# Use the generic interrupt handling code in kernel/irq/:
+#
+config GENERIC_IRQ_PROBE
+        def_bool y
+
+config GENERIC_IOMAP
+        def_bool y
+
+#config ZONE_DMA
+#       bool
+#       default y
+
+config HAS_DMA
+        bool
+        select HAVE_DMA_ATTRS
+        default y
+
+config NEED_SG_DMA_LENGTH
+        def_bool y
+
+config RWSEM_GENERIC_SPINLOCK
+        def_bool n
+
+config RWSEM_XCHGADD_ALGORITHM
+        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_BROADCAST
+        def_bool y
+
+config STACKTRACE_SUPPORT
+        def_bool y
+        select STACKTRACE
+
+config GENERIC_BUG
+        def_bool y
+        depends on BUG
+
+config BUG
+        def_bool y
+
+menu "Machine selection"
+
+choice
+        prompt "System type"
+        default HEXAGON_ARCH_V2
+
+config HEXAGON_COMET
+        bool "Comet Board"
+        select HEXAGON_ARCH_V2
+        ---help---
+          Support for the Comet platform.
+
+endchoice
+
+config HEXAGON_VM
+        def_bool y
+
+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, you should supply some
+          command-line options at build time by entering them here.  At a
+          minimum, you should specify the memory size and the root device
+          (e.g., mem=64M root=/dev/nfs).
+
+config HEXAGON_ANGEL_TRAPS
+        bool "Use Angel Traps"
+        default n
+        ---help---
+          Enable angel debug traps (for printk's).
+
+config SMP
+        bool "Multi-Processing support"
+        ---help---
+          Enables SMP support in the kernel.  If unsure, say "Y"
+
+config NR_CPUS
+        int "Maximum number of CPUs" if SMP
+        range 2 6 if SMP
+        default "1" if !SMP
+        default "6" if SMP
+        ---help---
+          This allows you to specify the maximum number of CPUs which this
+          kernel will support.  The maximum supported value is 6 and the
+          minimum value which makes sense is 2.
+
+          This is purely to save memory - each supported CPU adds
+          approximately eight kilobytes to the kernel image.
+
+choice
+        prompt "Kernel page size"
+        default PAGE_SIZE_4KB
+        ---help---
+          Changes the default page size; use with caution.
+
+config PAGE_SIZE_4KB
+        bool "4KB"
+
+config PAGE_SIZE_16KB
+        bool "16KB"
+
+config PAGE_SIZE_64KB
+        bool "64KB"
+
+config PAGE_SIZE_256KB
+        bool "256KB"
+
+endchoice
+
+source "mm/Kconfig"
+
+source "kernel/Kconfig.hz"
+source "kernel/time/Kconfig"
+
+config GENERIC_GPIO
+        bool "Generic GPIO support"
+        default n
+
+endmenu
+
+source "init/Kconfig"
+source "drivers/Kconfig"
+source "fs/Kconfig"
+
+menu "Executable File Formats"
+source "fs/Kconfig.binfmt"
+endmenu
+
+source "net/Kconfig"
+source "security/Kconfig"
+source "crypto/Kconfig"
+source "lib/Kconfig"
+
+menu "Kernel hacking"
+source "lib/Kconfig.debug"
+endmenu