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| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2006-03-28 21:00:40 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-03-28 21:00:40 +0100 |
| commit | 23bdf86aa06ebe71bcbf6b7d25de9958c6ab33fa (patch) | |
| tree | 56636558e8cdeee0739e7d8c82d66ffe625340b3 /arch/arm/Makefile | |
| parent | de4533a04eb4f66dbef71f59a9c118256b886823 (diff) | |
| download | talos-obmc-linux-23bdf86aa06ebe71bcbf6b7d25de9958c6ab33fa.tar.gz talos-obmc-linux-23bdf86aa06ebe71bcbf6b7d25de9958c6ab33fa.zip | |
[ARM] 3377/2: add support for intel xsc3 core
Patch from Lennert Buytenhek
This patch adds support for the new XScale v3 core. This is an
ARMv5 ISA core with the following additions:
- L2 cache
- I/O coherency support (on select chipsets)
- Low-Locality Reference cache attributes (replaces mini-cache)
- Supersections (v6 compatible)
- 36-bit addressing (v6 compatible)
- Single instruction cache line clean/invalidate
- LRU cache replacement (vs round-robin)
I attempted to merge the XSC3 support into proc-xscale.S, but XSC3
cores have separate errata and have to handle things like L2, so it
is simpler to keep it separate.
L2 cache support is currently a build option because the L2 enable
bit must be set before we enable the MMU and there is no easy way to
capture command line parameters at this point.
There are still optimizations that can be done such as using LLR for
copypage (in theory using the exisiting mini-cache code) but those
can be addressed down the road.
Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/Makefile')
| -rw-r--r-- | arch/arm/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 99c0d323719a..0f571d3d2fa4 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -57,6 +57,7 @@ tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110 tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100 tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale +tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) ifeq ($(CONFIG_AEABI),y) |
