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>
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
new file mode 100644
index 0000000..02513c2
--- /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