diff options
Diffstat (limited to 'include/asm-blackfin/macros.h')
| -rw-r--r-- | include/asm-blackfin/macros.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/include/asm-blackfin/macros.h b/include/asm-blackfin/macros.h new file mode 100644 index 00000000000..c0c04a2f2dd --- /dev/null +++ b/include/asm-blackfin/macros.h @@ -0,0 +1,95 @@ +/************************************************************************ + * + * 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 */ |