Commit graph

9 commits

Author SHA1 Message Date
Masahiro Yamada
ee9bc77f3a ARM: uniphier: add uniphier_cache_set_active_ways()
This outer cache allows to control active ways independently for
each CPU, so this function will be useful to set up active ways
for a specific CPU.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-11 17:49:45 +09:00
Masahiro Yamada
5941638027 ARM: uniphier: add uniphier_cache_inv_way() to support way invalidation
This invalidates entries in specified ways of the outer cache.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-11 17:49:45 +09:00
Masahiro Yamada
7382d17826 ARM: uniphier: move (and rename) CONFIG_UNIPHIER_L2CACHE_ON to Kconfig
Move this option to Kconfig, renaming it into CONFIG_CACHE_UNIPHIER.
The new option name makes sense enough, and the same as Linux has.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-11 17:49:38 +09:00
Masahiro Yamada
95646e1d75 ARM: uniphier: move outer cache register macros to .c file
Now, all of these macros are only used in cache-uniphier.c, so
there is no need to export them in a header file.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-11 17:49:32 +09:00
Masahiro Yamada
6f579db754 ARM: uniphier: export uniphier_cache_enable/disable functions
The System Cache (outer cache) is used not only as L2 cache,
but also as locked SRAM.  The functions for turning on/off it
is necessary whether the L2 cache is enabled or not.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-11 17:49:25 +09:00
Masahiro Yamada
e731a5385d ARM: uniphier: do not compile v7_outer_cache_disable if L2 is disabled
If CONFIG_UNIPHIER_L2CACHE_ON is undefined, the L2 cache is never
enabled, so there is no need for v7_outer_cache_disable().  The weak
stub avoids the compile error anyway.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-11 17:49:12 +09:00
Masahiro Yamada
95a1feca2e ARM: uniphier: support prefetch and touch operations for outer cache
The UniPhier outer cache (L2 cache on ARMv7 SoCs) can be used as
SRAM by locking ways.

These functions will be used to transfer the trampoline code for SMP
into the locked SRAM.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-11 17:49:11 +09:00
Masahiro Yamada
3ffc747574 ARM: uniphier: refactor outer cache code
Unify the range/all operation routines into the common function,
uniphier_cache_maint_common(), and sync code with Linux a bit more.

This reduces the code duplication.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-11 17:49:10 +09:00
Masahiro Yamada
4bab70a77d ARM: uniphier: rename outer-cache register macros
Sync register macros with Linux code.  This will be helpful to
develop the counterpart of Linux.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-07-24 00:17:15 +09:00