MIPS: Loongson: Add GCC 4.4 support for Loongson2E

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Because only gcc >=4.4 have loongson-specific support, we need to choose
the suitable -march argument for gcc <= 4.3 and gcc >= 4.4, and here, we
use -march=loongson2e for loongson2e.

Thanks goes to Arnaud Patard <apatard@mandriva.com> for suggestion of
using cc-options(Documentation/kbuild/makefiles.txt). and thanks Zhang
Le for introducing the new CPU_LOONGSON2E kernel option.

NOTE: -mtune option is not need if -march and -mtune use the same value.

Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

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Wu Zhangjin 2009-07-02 23:27:41 +08:00 • committed by Ralf Baechle

parent 3209e70e5e

commit 3702bba5eb

3 changed files with 17 additions and 9 deletions

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18

arch/mips/Kconfig

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arch/mips/Makefile

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arch/mips/loongson/Kconfig

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