sh: Support denormalization on SH-4 FPU.
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/include/asm-sh/cpu-sh4/fpu.h b/include/asm-sh/cpu-sh4/fpu.h
new file mode 100644
index 0000000..febef73
--- /dev/null
+++ b/include/asm-sh/cpu-sh4/fpu.h
@@ -0,0 +1,32 @@
+/*
+ * linux/arch/sh/kernel/cpu/sh4/sh4_fpu.h
+ *
+ * Copyright (C) 2006 STMicroelectronics Limited
+ * Author: Carl Shaw <carl.shaw@st.com>
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License Version 2. See linux/COPYING for more information.
+ *
+ * Definitions for SH4 FPU operations
+ */
+
+#ifndef __CPU_SH4_FPU_H
+#define __CPU_SH4_FPU_H
+
+#define FPSCR_ENABLE_MASK 0x00000f80UL
+
+#define FPSCR_FMOV_DOUBLE (1<<1)
+
+#define FPSCR_CAUSE_INEXACT (1<<12)
+#define FPSCR_CAUSE_UNDERFLOW (1<<13)
+#define FPSCR_CAUSE_OVERFLOW (1<<14)
+#define FPSCR_CAUSE_DIVZERO (1<<15)
+#define FPSCR_CAUSE_INVALID (1<<16)
+#define FPSCR_CAUSE_ERROR (1<<17)
+
+#define FPSCR_DBL_PRECISION (1<<19)
+#define FPSCR_ROUNDING_MODE(x) ((x >> 20) & 3)
+#define FPSCR_RM_NEAREST (0)
+#define FPSCR_RM_ZERO (1)
+
+#endif