firmware/target/arm/imx31/gigabeat-s/system-target.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2007 by Greg White
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #ifndef SYSTEM_TARGET_H
  22 #define SYSTEM_TARGET_H
  23
  24 #include "system-arm.h"
  25 #include "mmu-arm.h"
  26
  27 #ifndef HAVE_ADJUSTABLE_CPU_FREQ
  28 /* TODO: implement CPU frequency scaling */
  29 #define CPUFREQ_DEFAULT CPU_FREQ
  30 #define CPUFREQ_NORMAL CPU_FREQ
  31 #define CPUFREQ_MAX CPU_FREQ
  32 #endif
  33
  34 static inline void udelay(unsigned int usecs)
  35 {
  36     unsigned stop = GPTCNT + usecs;
  37     while (TIME_BEFORE(GPTCNT, stop));
  38 }
  39
  40 void watchdog_init(unsigned int half_seconds);
  41 void watchdog_service(void);
  42
  43 void gpt_start(void);
  44 void gpt_stop(void);
  45
  46 unsigned int iim_system_rev(void);
  47
  48 /* Prepare for transition to firmware */
  49 void system_prepare_fw_start(void);
  50 void tick_stop(void);
  51 void kernel_device_init(void);
  52
  53 void imx31_regmod32(volatile uint32_t *reg_p, uint32_t value,
  54                     uint32_t mask);
  55 void imx31_regset32(volatile uint32_t *reg_p, uint32_t mask);
  56 void imx31_regclr32(volatile uint32_t *reg_p, uint32_t mask);
  57
  58 #define KDEV_INIT
  59
  60 struct ARM_REGS {
  61         int r0;
  62         int r1;
  63         int r2;
  64         int r3;
  65         int r4;
  66         int r5;
  67         int r6;
  68         int r7;
  69         int r8;
  70         int r9;
  71         int r10;
  72         int r11;
  73         int r12;
  74         int sp;
  75         int lr;
  76         int pc;
  77         int cpsr;
  78 } regs;
  79
  80 inline void dumpregs(void);
  81
  82 #endif /* SYSTEM_TARGET_H */