commit 3702bba5eb4f7a0c89107089af6fd9bc2966b65a
author Wu Zhangjin <wuzhangjin@gmail.com> Thu Jul 02 23:27:41 2009 +0800
committer Ralf Baechle <ralf@linux-mips.org> Thu Sep 17 20:07:47 2009 +0200
tree ab2a7c8a0a88d7fb2ade98d42d24655370537640
parent 3209e70e5ed1821be8d9b87fe9e8bd6cffa4b4c7

MIPS: Loongson: Add GCC 4.4 support for Loongson2E

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>

arch/mips/loongson/Kconfig

diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig
index 376712a..d450925 100644
--- a/arch/mips/loongson/Kconfig
+++ b/arch/mips/loongson/Kconfig
@@ -7,7 +7,7 @@
     select ARCH_SPARSEMEM_ENABLE
     select CEVT_R4K
     select CSRC_R4K
-    select SYS_HAS_CPU_LOONGSON2
+    select SYS_HAS_CPU_LOONGSON2E
     select DMA_NONCOHERENT
     select BOOT_ELF32
     select BOARD_SCACHE