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authorWu Zhangjin <wuzhangjin@gmail.com>2009-07-02 23:27:41 +0800
committerRalf Baechle <ralf@linux-mips.org>2009-09-17 20:07:47 +0200
commit3702bba5eb4f7a0c89107089af6fd9bc2966b65a (patch)
treeab2a7c8a0a88d7fb2ade98d42d24655370537640 /arch/mips/Kconfig
parent3209e70e5ed1821be8d9b87fe9e8bd6cffa4b4c7 (diff)
downloadlinux-3702bba5eb4f7a0c89107089af6fd9bc2966b65a.tar.bz2
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>
Diffstat (limited to 'arch/mips/Kconfig')
-rw-r--r--arch/mips/Kconfig18
1 files changed, 11 insertions, 7 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 482dcc3b91e1..466920aa067f 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1030,12 +1030,10 @@ choice
prompt "CPU type"
default CPU_R4X00
-config CPU_LOONGSON2
- bool "Loongson 2"
- depends on SYS_HAS_CPU_LOONGSON2
- select CPU_SUPPORTS_32BIT_KERNEL
- select CPU_SUPPORTS_64BIT_KERNEL
- select CPU_SUPPORTS_HIGHMEM
+config CPU_LOONGSON2E
+ bool "Loongson 2E"
+ depends on SYS_HAS_CPU_LOONGSON2E
+ select CPU_LOONGSON2
help
The Loongson 2E processor implements the MIPS III instruction set
with many extensions.
@@ -1282,7 +1280,13 @@ config CPU_CAVIUM_OCTEON
endchoice
-config SYS_HAS_CPU_LOONGSON2
+config CPU_LOONGSON2
+ bool
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
+ select CPU_SUPPORTS_HIGHMEM
+
+config SYS_HAS_CPU_LOONGSON2E
bool
config SYS_HAS_CPU_MIPS32_R1