sh: Restrict DSP support to specific CPUs.

Not all CPUs support the DSP, and this leads to problems when mixing
and matching CPU types and DSP opcodes. Fix this up by only allowing
CONFIG_SH_DSP to be enabled for the CPUs that explicitly have such a
block.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 5 insertions, 2 deletions

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 2aad2ff39a2f..0a631d0f75f1 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -134,8 +134,8 @@ config SH_FPU_EMU
 
 config SH_DSP
         bool "DSP support"
-        default y if SH4AL_DSP || !CPU_SH4
-        default n
+        depends on CPU_HAS_DSP
+        default y
         help
           Selecting this option will enable support for SH processors that
           have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
@@ -199,6 +199,9 @@ config CPU_HAS_SR_RB
 config CPU_HAS_PTEA
         bool
 
+config CPU_HAS_DSP
+        bool
+
 endmenu
 
 menu "Board support"