1/* $Id: boot_prep.c,v 1.3 2013/02/23 16:22:39 jkunz Exp $ */ 2 3/* 4 * Copyright (c) 2012 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Petri Laakso. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include <sys/param.h> 33#include <sys/cdefs.h> 34 35#include <arm/imx/imx23_digctlreg.h> 36 37#include <lib/libsa/stand.h> 38 39#include "common.h" 40 41/* 42 * Initialize i.MX23 power, clocks and DRAM. 43 */ 44int 45_start(void) 46{ 47 48 /* Make sure timer is running. */ 49 REG_WR(HW_DIGCTL_BASE + HW_DIGCTL_CTRL_CLR, 50 HW_DIGCTL_CTRL_XTAL24M_GATE); 51 52 printf("\n\rBooting"); 53 54 power_prep(); 55 putchar('.'); 56 57 clock_prep(); 58 putchar('.'); 59 60 pinctrl_prep(); 61 putchar('.'); 62 63 emi_prep(); 64 printf("done.\n\r"); 65 66 args_prep(); 67 68 return 0; 69} 70