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      1 /* $Id: common.h,v 1.4 2013/10/07 17:36:40 matt 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 #ifndef _BOOTIMX23_COMMON_
     33 #define _BOOTIMX23_COMMON_
     34 
     35 #define REG_RD(reg) *(volatile uint32_t *)(reg)
     36 #define REG_WR(reg, val)						\
     37 do {									\
     38 	*(volatile uint32_t *)((reg)) = val;				\
     39 } while (0)
     40 #define REG_RD_HW(reg) *(volatile uint16_t *)(reg)
     41 #define REG_WR_HW(reg, val)						\
     42 do {									\
     43 	*(volatile uint16_t *)((reg)) = val;				\
     44 } while (0)
     45 #define REG_RD_BYTE(reg) *(volatile uint8_t *)(reg)
     46 #define REG_WR_BYTE(reg, val)						\
     47 do {									\
     48 	*(volatile uint8_t *)((reg)) = val;				\
     49 } while (0)
     50 
     51 int emi_prep(void);
     52 int pinctrl_prep(void);
     53 int args_prep(void);
     54 void delay(unsigned int);
     55 void putchar(int);
     56 int getchar(void);
     57 
     58 /* Power prep. */
     59 void en_vbusvalid(void);
     60 int vbusvalid(void);
     61 void power_tune(void);
     62 void en_4p2_reg(void);
     63 void en_4p2_to_dcdc(void);
     64 void power_vddd_from_dcdc(int, int);
     65 void power_vdda_from_dcdc(int, int);
     66 void power_vddio_from_dcdc(int, int);
     67 void power_vddmem(int);
     68 
     69 /* Clock prep. */
     70 void en_pll(void);
     71 void set_hbus_div(unsigned int);
     72 void set_cpu_frac(unsigned int);
     73 void bypass_cpu(void);
     74 void set_emi_div(unsigned int);
     75 void set_emi_frac(unsigned int);
     76 void bypass_emi(void);
     77 void set_ssp_div(unsigned int);
     78 void set_io_frac(unsigned int);
     79 void bypass_ssp(void);
     80 void bypass_saif(void);
     81 
     82 #endif /* !_BOOTIMX23_COMMON_ */
     83