1 files changed, 95 insertions, 0 deletions
diff --git a/include/asm-blackfin/macros.h b/include/asm-blackfin/macros.h
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+++ b/include/asm-blackfin/macros.h
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+/************************************************************************
+ *
+ * macros.h
+ *
+ * (c) Copyright 2001-2003 Analog Devices, Inc.  All rights reserved.
+ *
+ ************************************************************************/
+
+/* Defines various assembly macros. */
+
+#ifndef _MACROS_H
+#define _MACROS_H
+
+#define LO(con32) ((con32) & 0xFFFF)
+#define lo(con32) ((con32) & 0xFFFF)
+#define HI(con32) (((con32) >> 16) & 0xFFFF)
+#define hi(con32) (((con32) >> 16) & 0xFFFF)
+
+/*
+ * Set the corresponding bits in a System Register (SR);
+ * All bits set in "mask" will be set in the system register
+ * specified by "sys_reg" bitset_SR(sys_reg, mask), where
+ * sys_reg is the system register and mask are the bits to be set.
+ */
+#define bitset_SR(sys_reg, mask)\
+		[--SP] = (R7:6);\
+		r7 = sys_reg;\
+		r6.l = (mask) & 0xffff;\
+		r6.h = (mask) >> 16;\
+		r7 = r7 | r6;\
+		sys_reg = r7;\
+		csync;\
+		(R7:6) = [SP++]
+
+/*
+ * Clear the corresponding bits in a System Register (SR);
+ * All bits set in "mask" will be cleared in the SR
+ * specified by "sys_reg" bitclr_SR(sys_reg, mask), where
+ * sys_reg is the SR and mask are the bits to be cleared.
+ */
+#define bitclr_SR(sys_reg, mask)\
+		[--SP] = (R7:6);\
+		r7 = sys_reg;\
+		r7 =~ r7;\
+		r6.l = (mask) & 0xffff;\
+		r6.h = (mask) >> 16;\
+		r7 = r7 | r6;\
+		r7 =~ r7;\
+		sys_reg = r7;\
+		csync;\
+		(R7:6) = [SP++]
+
+/*
+ * Set the corresponding bits in a Memory Mapped Register (MMR);
+ * All bits set in "mask" will be set in the MMR specified by "mmr_reg"
+ * bitset_MMR(mmr_reg, mask), where mmr_reg is the MMR and mask are
+ * the bits to be set.
+ */
+#define bitset_MMR(mmr_reg, mask)\
+		[--SP] = (R7:6);\
+		[--SP] = P5;\
+		p5.l = mmr_reg & 0xffff;\
+		p5.h = mmr_reg >> 16;\
+		r7 = [p5];\
+		r6.l = (mask) & 0xffff;\
+		r6.h = (mask) >> 16;\
+		r7 = r7 | r6;\
+		[p5] = r7;\
+		csync;\
+		p5 = [SP++];\
+		(R7:6) = [SP++]
+
+/*
+ * Clear the corresponding bits in a Memory Mapped Register (MMR);
+ * All bits set in "mask" will be cleared in the MMR specified by "mmr_reg"
+ * bitclr_MMRreg(mmr_reg, mask), where sys_reg is the MMR and mask are
+ * the bits to be cleared.
+ */
+#define bitclr_MMR(mmr_reg, mask)\
+		[--SP] = (R7:6);\
+		[--SP] = P5;\
+		p5.l = mmr_reg & 0xffff;\
+		p5.h = mmr_reg >> 16;\
+		r7 = [p5];\
+		r7 =~ r7;\
+		r6.l = (mask) & 0xffff;\
+		r6.h = (mask) >> 16;\
+		r7 = r7 | r6;\
+		r7 =~ r7;\
+		[p5] = r7;\
+		csync;\
+		p5 = [SP++];\
+		(R7:6) = [SP++]
+
+#endif				/* _MACROS_H */