sh: Isolate uncached mapping support.
This splits out the uncached mapping support under its own config option,
presently only used by 29-bit mode and 32-bit + PMB. This will make it
possible to optionally add an uncached mapping on sh64 as well as booting
without an uncached mapping for 32-bit.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index b890752..65cb5b8 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -75,6 +75,7 @@
config 29BIT
def_bool !32BIT
depends on SUPERH32
+ select UNCACHED_MAPPING
config 32BIT
bool
@@ -84,6 +85,7 @@
bool "Support 32-bit physical addressing through PMB"
depends on MMU && EXPERIMENTAL && CPU_SH4A && !CPU_SH4AL_DSP
select 32BIT
+ select UNCACHED_MAPPING
help
If you say Y here, physical addressing will be extended to
32-bits through the SH-4A PMB. If this is not set, legacy
@@ -173,6 +175,9 @@
def_bool y
depends on X2TLB || SUPERH64
+config UNCACHED_MAPPING
+ bool
+
choice
prompt "Kernel page size"
default PAGE_SIZE_4KB
