Support the MIPS32 / MIPS64 DSP ASE.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 6fc51b2..9253dcc 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -549,3 +549,12 @@
 }
 
 __setup("nofpu", fpu_disable);
+
+int __init dsp_disable(char *s)
+{
+	cpu_data[0].ases &= ~MIPS_ASE_DSP;
+
+	return 1;
+}
+
+__setup("nodsp", dsp_disable);