1 /* $NetBSD: devreg.h,v 1.6 2008/04/28 20:23:35 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _SH3_DEVREG_H_ 30 #define _SH3_DEVREG_H_ 31 /* 32 * SH embeded device register defines. 33 */ 34 35 /* 36 * Access method 37 */ 38 #define _reg_read_1(a) (*(volatile uint8_t *)((vaddr_t)(a))) 39 #define _reg_read_2(a) (*(volatile uint16_t *)((vaddr_t)(a))) 40 #define _reg_read_4(a) (*(volatile uint32_t *)((vaddr_t)(a))) 41 #define _reg_write_1(a, v) \ 42 (*(volatile uint8_t *)(a) = (uint8_t)(v)) 43 #define _reg_write_2(a, v) \ 44 (*(volatile uint16_t *)(a) = (uint16_t)(v)) 45 #define _reg_write_4(a, v) \ 46 (*(volatile uint32_t *)(a) = (uint32_t)(v)) 47 #define _reg_bset_1(a, v) \ 48 (*(volatile uint8_t *)(a) |= (uint8_t)(v)) 49 #define _reg_bset_2(a, v) \ 50 (*(volatile uint16_t *)(a) |= (uint16_t)(v)) 51 #define _reg_bset_4(a, v) \ 52 (*(volatile uint32_t *)(a) |= (uint32_t)(v)) 53 #define _reg_bclr_1(a, v) \ 54 (*(volatile uint8_t *)(a) &= ~(uint8_t)(v)) 55 #define _reg_bclr_2(a, v) \ 56 (*(volatile uint16_t *)(a) &= ~(uint16_t)(v)) 57 #define _reg_bclr_4(a, v) \ 58 (*(volatile uint32_t *)(a) &= ~(uint32_t)(v)) 59 60 /* 61 * Register address. 62 */ 63 #if defined(SH3) && defined(SH4) 64 #define SH_(x) __sh_ ## x 65 #elif defined(SH3) 66 #define SH_(x) SH3_ ## x 67 #elif defined(SH4) 68 #define SH_(x) SH4_ ## x 69 #endif 70 71 #ifndef _LOCORE 72 /* Initialize register address for SH3 && SH4 kernel. */ 73 void sh_devreg_init(void); 74 #endif 75 #endif /* !_SH3_DEVREG_H_ */ 76