1 /* $NetBSD: smdk2410_io_init.c,v 1.2 2005/12/11 12:17:09 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2003 By Noon Software, Inc. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The names of the authors may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 30 #include <arm/s3c2xx0/s3c2410reg.h> 31 32 #define IOW(a, d) (*(volatile unsigned int *)(a) = (d)) 33 #define IOR(a) (*(volatile unsigned int *)(a)) 34 35 void smdk2410_io_init(void); 36 37 void 38 smdk2410_io_init(void) 39 { 40 #define O PCON_OUTPUT 41 #define I PCON_INPUT 42 #define A PCON_ALTFUN 43 #define _ 0 44 #define _C(b15,b14,b13,b12,b11,b10,b9,b8,b7,b6,b5,b4,b3,b2,b1,b0) \ 45 ((b15<<30)|(b14<<28)|(b13<<26)|(b12<<24)|(b11<<22)|(b10<<20)|(b9<<18)|(b8<<16)|(b7<<14)|(b6<<12)|(b5<<10)|(b4<<8)|(b3<<6)|(b2<<4)|(b1<<2)|(b0<<0)) 46 47 /* GPIO port */ 48 IOW(S3C2410_GPIO_BASE+GPIO_PACON, 0x7fffff); 49 IOW(S3C2410_GPIO_BASE+GPIO_PBCON, _C(_,_,_,_,_,I,O,I,O,I,O,O,O,O,O,O)); 50 IOW(S3C2410_GPIO_BASE+GPIO_PBUP, 0x07ff); 51 IOW(S3C2410_GPIO_BASE+GPIO_PCCON, _C(A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A)); 52 IOW(S3C2410_GPIO_BASE+GPIO_PCUP, 0xffff); 53 IOW(S3C2410_GPIO_BASE+GPIO_PDCON, _C(A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A)); 54 IOW(S3C2410_GPIO_BASE+GPIO_PDUP, 0xffff); 55 IOW(S3C2410_GPIO_BASE+GPIO_PECON, _C(A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A)); 56 IOW(S3C2410_GPIO_BASE+GPIO_PEUP, 0xffff); 57 IOW(S3C2410_GPIO_BASE+GPIO_PFCON, _C(_,_,_,_,_,_,_,_,O,O,O,O,A,A,A,A)); 58 IOW(S3C2410_GPIO_BASE+GPIO_PFUP, 0x00ff); 59 IOW(S3C2410_GPIO_BASE+GPIO_PGCON, _C(3,3,3,3,A,O,O,O,3,3,3,3,A,3,A,A)); 60 IOW(S3C2410_GPIO_BASE+GPIO_PGUP, 0xffff); 61 IOW(S3C2410_GPIO_BASE+GPIO_PHCON, _C(_,_,_,_,_,A,A,A,3,3,A,A,A,A,A,A)); 62 IOW(S3C2410_GPIO_BASE+GPIO_PHUP, 0x07ff); 63 IOW(S3C2410_GPIO_BASE+GPIO_EXTINT(0), 0x22222222); 64 IOW(S3C2410_GPIO_BASE+GPIO_EXTINT(1), 0x22222222); 65 IOW(S3C2410_GPIO_BASE+GPIO_EXTINT(2), 0x22222222); 66 67 #undef O 68 #undef I 69 #undef A 70 #undef _ 71 #undef _C 72 73 /* Interrupt controller */ 74 IOW(S3C2410_INTCTL_BASE+INTCTL_INTMOD, 0); 75 IOW(S3C2410_INTCTL_BASE+INTCTL_INTMSK, 0); 76 } 77