sh: Restrict DSP support to specific CPUs.
authorPaul Mundt <lethal@linux-sh.org>
Wed, 25 Jul 2007 07:26:10 +0000 (16:26 +0900)
committerPaul Mundt <lethal@linux-sh.org>
Thu, 26 Jul 2007 06:35:24 +0000 (15:35 +0900)
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>
arch/sh/Kconfig
arch/sh/mm/Kconfig

index 2aad2ff39a2fc88415cf4a2c7564a8b133f96624..0a631d0f75f1550782a716441a2d69fc45318321 100644 (file)
@@ -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"
index 03f7b988d5dd86ee46954f5ce06bc2502661488e..ff67422c8dcb13a8228a41a9ae7ad7b1cf4855a0 100644 (file)
@@ -27,6 +27,7 @@ config CPU_SH4A
 config CPU_SH4AL_DSP
        bool
        select CPU_SH4A
+       select CPU_HAS_DSP
 
 config CPU_SUBTYPE_ST40
        bool
@@ -102,6 +103,7 @@ config CPU_SUBTYPE_SH7710
        bool "Support SH7710 processor"
        select CPU_SH3
        select CPU_HAS_IPR_IRQ
+       select CPU_HAS_DSP
        help
          Select SH7710 if you have a SH3-DSP SH7710 CPU.
 
@@ -109,6 +111,7 @@ config CPU_SUBTYPE_SH7712
        bool "Support SH7712 processor"
        select CPU_SH3
        select CPU_HAS_IPR_IRQ
+       select CPU_HAS_DSP
        help
          Select SH7712 if you have a SH3-DSP SH7712 CPU.