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      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