diff options
author | Wu Zhangjin <wuzhangjin@gmail.com> | 2009-07-02 11:27:41 -0400 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2009-09-17 14:07:47 -0400 |
commit | 3702bba5eb4f7a0c89107089af6fd9bc2966b65a (patch) | |
tree | ab2a7c8a0a88d7fb2ade98d42d24655370537640 /arch/mips/Kconfig | |
parent | 3209e70e5ed1821be8d9b87fe9e8bd6cffa4b4c7 (diff) |
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/Kconfig | 18 |
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 | |||
1030 | prompt "CPU type" | 1030 | prompt "CPU type" |
1031 | default CPU_R4X00 | 1031 | default CPU_R4X00 |
1032 | 1032 | ||
1033 | config CPU_LOONGSON2 | 1033 | config CPU_LOONGSON2E |
1034 | bool "Loongson 2" | 1034 | bool "Loongson 2E" |
1035 | depends on SYS_HAS_CPU_LOONGSON2 | 1035 | depends on SYS_HAS_CPU_LOONGSON2E |
1036 | select CPU_SUPPORTS_32BIT_KERNEL | 1036 | select CPU_LOONGSON2 |
1037 | select CPU_SUPPORTS_64BIT_KERNEL | ||
1038 | select CPU_SUPPORTS_HIGHMEM | ||
1039 | help | 1037 | help |
1040 | The Loongson 2E processor implements the MIPS III instruction set | 1038 | The Loongson 2E processor implements the MIPS III instruction set |
1041 | with many extensions. | 1039 | with many extensions. |
@@ -1282,7 +1280,13 @@ config CPU_CAVIUM_OCTEON | |||
1282 | 1280 | ||
1283 | endchoice | 1281 | endchoice |
1284 | 1282 | ||
1285 | config SYS_HAS_CPU_LOONGSON2 | 1283 | config CPU_LOONGSON2 |
1284 | bool | ||
1285 | select CPU_SUPPORTS_32BIT_KERNEL | ||
1286 | select CPU_SUPPORTS_64BIT_KERNEL | ||
1287 | select CPU_SUPPORTS_HIGHMEM | ||
1288 | |||
1289 | config SYS_HAS_CPU_LOONGSON2E | ||
1286 | bool | 1290 | bool |
1287 | 1291 | ||
1288 | config SYS_HAS_CPU_MIPS32_R1 | 1292 | config SYS_HAS_CPU_MIPS32_R1 |