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Diffstat (limited to 'include/asm-arm/macro.h')
-rw-r--r-- | include/asm-arm/macro.h | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/include/asm-arm/macro.h b/include/asm-arm/macro.h deleted file mode 100644 index 57b5260..0000000 --- a/include/asm-arm/macro.h +++ /dev/null @@ -1,74 +0,0 @@ -/* - * include/asm-arm/macro.h - * - * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#ifndef __ASM_ARM_MACRO_H__ -#define __ASM_ARM_MACRO_H__ -#ifdef __ASSEMBLY__ - -/* - * These macros provide a convenient way to write 8, 16 and 32 bit data - * to any address. - * Registers r4 and r5 are used, any data in these registers are - * overwritten by the macros. - * The macros are valid for any ARM architecture, they do not implement - * any memory barriers so caution is recommended when using these when the - * caches are enabled or on a multi-core system. - */ - -.macro write32, addr, data - ldr r4, =\addr - ldr r5, =\data - str r5, [r4] -.endm - -.macro write16, addr, data - ldr r4, =\addr - ldrh r5, =\data - strh r5, [r4] -.endm - -.macro write8, addr, data - ldr r4, =\addr - ldrb r5, =\data - strb r5, [r4] -.endm - -/* - * This macro generates a loop that can be used for delays in the code. - * Register r4 is used, any data in this register is overwritten by the - * macro. - * The macro is valid for any ARM architeture. The actual time spent in the - * loop will vary from CPU to CPU though. - */ - -.macro wait_timer, time - ldr r4, =\time -1: - nop - subs r4, r4, #1 - bcs 1b -.endm - -#endif /* __ASSEMBLY__ */ -#endif /* __ASM_ARM_MACRO_H__ */ |