diff options
author | Franck Bui-Huu <fbuihuu@gmail.com> | 2007-02-02 11:41:47 -0500 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2007-02-21 19:50:44 -0500 |
commit | 9693a85378b590cc7a4aa2db2174422585c7c8c4 (patch) | |
tree | 43d031f8e555d9276e68bdb158bd264c2d260346 /arch/mips/defconfig | |
parent | 9654640d0af8f2de40ff3807d3695109d3463f54 (diff) |
[MIPS] Add basic SMARTMIPS ASE support
This patch adds trivial support for SMARTMIPS extension. This extension
is currently implemented by 4KS[CD] CPUs.
Basically it saves/restores ACX register, which is part of the SMARTMIPS
ASE, when needed. This patch does *not* add any support for Smartmips MMU
features.
Futhermore this patch does not add explicit support for 4KS[CD] CPUs since
they are respectively mips32 and mips32r2 compliant. So with the current
processor configuration, a platform that has such CPUs needs to select
both configs:
CPU_HAS_SMARTMIPS
SYS_HAS_CPU_MIPS32_R[12]
This is due to the processor configuration which is mixing up all the
architecture variants and the processor types.
The drawback of this, is that we currently pass '-march=mips32' option to
gcc when building a kernel instead of '-march=4ksc' for 4KSC case. This
can lead to a kernel image a little bit bigger than required.
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/defconfig')
-rw-r--r-- | arch/mips/defconfig | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/mips/defconfig b/arch/mips/defconfig index 6c2a233e36cb..8cb8f5919194 100644 --- a/arch/mips/defconfig +++ b/arch/mips/defconfig | |||
@@ -1,7 +1,7 @@ | |||
1 | # | 1 | # |
2 | # Automatically generated make config: don't edit | 2 | # Automatically generated make config: don't edit |
3 | # Linux kernel version: 2.6.20 | 3 | # Linux kernel version: 2.6.20 |
4 | # Sun Feb 18 21:27:34 2007 | 4 | # Tue Feb 20 21:47:14 2007 |
5 | # | 5 | # |
6 | CONFIG_MIPS=y | 6 | CONFIG_MIPS=y |
7 | 7 | ||
@@ -620,6 +620,7 @@ CONFIG_CONNECTOR=m | |||
620 | # | 620 | # |
621 | # Plug and Play support | 621 | # Plug and Play support |
622 | # | 622 | # |
623 | # CONFIG_PNPACPI is not set | ||
623 | 624 | ||
624 | # | 625 | # |
625 | # Block devices | 626 | # Block devices |