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authorMax Filippov <jcmvbkbc@gmail.com>2014-06-16 07:25:06 +0400
committerMax Filippov <jcmvbkbc@gmail.com>2014-08-14 11:59:08 +0400
commit420ae9518404c4aeda3abc8e017c8fdcc3a13d6b (patch)
tree36c40eae5e715e35a8cb77899154d9e1398fa95f /arch/xtensa/Kconfig
parent64aa90f26c06e1cb2aacfb98a7d0eccfbd6c1a91 (diff)
downloadlinux-420ae9518404c4aeda3abc8e017c8fdcc3a13d6b.tar.bz2
xtensa: simplify addition of new core variants
Instead of adding new Kconfig options and Makefile rules for each new core variant provide XTENSA_VARIANT_CUSTOM variant and record variant name in the XTENSA_VARIANT_NAME variable. Adding new core variant now means providing directory structure under arch/xtensa/variant and specifying correct name in kernel configuration. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa/Kconfig')
-rw-r--r--arch/xtensa/Kconfig36
1 files changed, 35 insertions, 1 deletions
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 3a617af60d46..7feca8dfdff2 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -62,7 +62,9 @@ config TRACE_IRQFLAGS_SUPPORT
def_bool y
config MMU
- def_bool n
+ bool
+ default n if !XTENSA_VARIANT_CUSTOM
+ default XTENSA_VARIANT_MMU if XTENSA_VARIANT_CUSTOM
config VARIANT_IRQ_SWITCH
def_bool n
@@ -102,8 +104,40 @@ config XTENSA_VARIANT_S6000
select VARIANT_IRQ_SWITCH
select ARCH_REQUIRE_GPIOLIB
select XTENSA_CALIBRATE_CCOUNT
+
+config XTENSA_VARIANT_CUSTOM
+ bool "Custom Xtensa processor configuration"
+ select MAY_HAVE_SMP
+ select HAVE_XTENSA_GPIO32
+ help
+ Select this variant to use a custom Xtensa processor configuration.
+ You will be prompted for a processor variant CORENAME.
endchoice
+config XTENSA_VARIANT_CUSTOM_NAME
+ string "Xtensa Processor Custom Core Variant Name"
+ depends on XTENSA_VARIANT_CUSTOM
+ help
+ Provide the name of a custom Xtensa processor variant.
+ This CORENAME selects arch/xtensa/variant/CORENAME.
+ Dont forget you have to select MMU if you have one.
+
+config XTENSA_VARIANT_NAME
+ string
+ default "dc232b" if XTENSA_VARIANT_DC232B
+ default "dc233c" if XTENSA_VARIANT_DC233C
+ default "fsf" if XTENSA_VARIANT_FSF
+ default "s6000" if XTENSA_VARIANT_S6000
+ default XTENSA_VARIANT_CUSTOM_NAME if XTENSA_VARIANT_CUSTOM
+
+config XTENSA_VARIANT_MMU
+ bool "Core variant has a Full MMU (TLB, Pages, Protection, etc)"
+ depends on XTENSA_VARIANT_CUSTOM
+ default y
+ help
+ Build a Conventional Kernel with full MMU support,
+ ie: it supports a TLB with auto-loading, page protection.
+
config XTENSA_UNALIGNED_USER
bool "Unaligned memory access in use space"
help