MIPS: Add detection of DSP ASE Revision 2.

[ralf@linux-mips.org: This patch really only detects the ASE and passes its
existence on to userland via /proc/cpuinfo.  The DSP ASE Rev 2. adds new
resources but no resources that would need management by the kernel.]

Signed-off-by: Steven J. Hill <sjhill@mips.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4165/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index 7dc0db8..52c4e91 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -332,6 +332,7 @@
 #define MIPS_ASE_SMARTMIPS	0x00000008 /* SmartMIPS */
 #define MIPS_ASE_DSP		0x00000010 /* Signal Processing ASE */
 #define MIPS_ASE_MIPSMT		0x00000020 /* CPU supports MIPS MT */
+#define MIPS_ASE_DSP2P		0x00000040 /* Signal Processing ASE Rev 2 */
 
 
 #endif /* _ASM_CPU_H */