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microblaze: Enable asm optimization only for HW with barrel-shifter

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Asm code uses barrel-shifter instruction that's why we have
to protect cases when HW don't have it.

Reported-by: John Linn <john.linn@xilinx.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2009-10-26 09:56:48 +01:00
parent 3e78e4e5ea
commit 27d2a3ee5e
1 changed files with 1 additions and 1 deletions
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2
arch/microblaze/platform/Kconfig.platform
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@ -53,7 +53,7 @@ config OPT_LIB_FUNCTION
config OPT_LIB_ASM
bool "Optimalized lib function ASM"
depends on OPT_LIB_FUNCTION
depends on OPT_LIB_FUNCTION && (XILINX_MICROBLAZE0_USE_BARREL = 1)
default n
help
Allows turn on optimalized library function (memcpy and memmove).