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arch/microblaze: add choice for endianness and update Makefile

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microblaze architectures can be configured for either little or big endian
formats.  Add a choice option for the user to select the correct endian
format(default to big endian).

Also update the Makefile so toolchain can compile for the format it is
configured for.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Babu Moger <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: "James E.J. Bottomley" <[email protected]>
Cc: Alexander Viro <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Greg KH <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jonas Bonn <[email protected]>
Cc: Max Filippov <[email protected]>
Cc: Michael Ellerman <[email protected]> (powerpc)
Cc: Peter Zijlstra <[email protected]>
Cc: Stafford Horne <[email protected]>
Cc: Stefan Kristiansson <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Babu Moger 2017-09-08 16:14:25 -07:00 • committed by Linus Torvalds
commit 206d3642d8
2 changed files with 18 additions and 0 deletions
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16
arch/microblaze/Kconfig
View file

@ -36,6 +36,22 @@ config MICROBLAZE
select VIRT_TO_BUS
select CPU_NO_EFFICIENT_FFS
# Endianness selection
choice
prompt "Endianness selection"
default CPU_BIG_ENDIAN
help
microblaze architectures can be configured for either little or
big endian formats. Be sure to select the appropriate mode.
config CPU_BIG_ENDIAN
bool "Big endian"
config CPU_LITTLE_ENDIAN
bool "Little endian"
endchoice
config SWAP
def_bool n

2
arch/microblaze/Makefile
View file

@ -35,6 +35,8 @@ endif
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
CPUFLAGS-$(CONFIG_BIG_ENDIAN) += -mbig-endian
CPUFLAGS-$(CONFIG_LITTLE_ENDIAN) += -mlittle-endian
CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))