sys/arch/evbarm/gemini/gemini.h

   1 /*      $NetBSD: gemini.h,v 1.7 2008/11/20 07:49:54 cliff Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Matt Thomas <matt@3am-software.com>
   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 _EVBARM_GEMINI_GEMINI_H
  33 #define _EVBARM_GEMINI_GEMINI_H
  34
  35 /*
  36  * sanity check opt_gemini.h
  37  */
  38 #include "opt_gemini.h"
  39 #if !defined(GEMINI)
  40 # error must define GEMINI to use gemini.h
  41 #endif
  42 #if !defined(GEMINI_SINGLE) && !defined(GEMINI_MASTER) && !defined(GEMINI_SLAVE)
  43 # error must define one of GEMINI_SINGLE, GEMINI_MASTER, or GEMINI_SLAVE
  44 #endif
  45 #if defined(GEMINI_SINGLE)
  46 # if defined(GEMINI_MASTER) || defined(GEMINI_SLAVE)
  47 #  error GEMINI_SINGLE can not define either GEMINI_MASTER or GEMINI_SLAVE
  48 # endif
  49 #else
  50 # if defined(GEMINI_MASTER) && defined(GEMINI_SLAVE)
  51 #  error can not define both GEMINI_MASTER and GEMINI_SLAVE
  52 # endif
  53 #endif
  54
  55 #include <machine/vmparam.h>
  56 #include <arm/gemini/gemini_reg.h>
  57
  58
  59 /*
  60  * Kernel VM space: 192MB at KERNEL_VM_BASE
  61  */
  62 #define KERNEL_VM_BASE          ((KERNEL_BASE + 0x01000000) & ~(0x400000-1))
  63 #define KERNEL_VM_SIZE          0x0C000000
  64
  65 /*
  66  * We devmap IO starting at KERNEL_VM_BASE + KERNEL_VM_SIZE
  67  */
  68 #define GEMINI_KERNEL_IO_VBASE  (KERNEL_VM_BASE + KERNEL_VM_SIZE)
  69 #define GEMINI_GLOBAL_VBASE     GEMINI_KERNEL_IO_VBASE
  70 #define GEMINI_WATCHDOG_VBASE   (GEMINI_GLOBAL_VBASE   + L1_S_SIZE)
  71 #define GEMINI_UART_VBASE       (GEMINI_WATCHDOG_VBASE + L1_S_SIZE)
  72 #define GEMINI_LPCHC_VBASE      (GEMINI_UART_VBASE     + L1_S_SIZE)
  73 #define GEMINI_LPCIO_VBASE      (GEMINI_LPCHC_VBASE    + L1_S_SIZE)
  74 #define GEMINI_TIMER_VBASE      (GEMINI_LPCIO_VBASE    + L1_S_SIZE)
  75 #define GEMINI_DRAMC_VBASE      (GEMINI_TIMER_VBASE    + L1_S_SIZE)
  76
  77 /*
  78  * mapping of physical RAM
  79  */
  80 #define GEMINI_RAMDISK_VBASE    (GEMINI_DRAMC_VBASE    + L1_S_SIZE)
  81 #define GEMINI_RAMDISK_PBASE    0x00800000
  82 #define GEMINI_RAMDISK_SIZE     0x00300000
  83 #define GEMINI_RAMDISK_PEND     (GEMINI_RAMDISK_PBASE + GEMINI_RAMDISK_SIZE)
  84
  85 #define GEMINI_IPMQ_VBASE                                       \
  86         ((GEMINI_RAMDISK_VBASE + GEMINI_RAMDISK_SIZE            \
  87           + (L1_S_SIZE * 4) - 1) & ~((L1_S_SIZE * 4) - 1))
  88                 /* round up for l2pt alignment */
  89 #ifdef GEMINI_SLAVE
  90 # define        GEMINI_IPMQ_PBASE       (GEMINI_RAMDISK_PEND + (GEMINI_BUSBASE * 1024 * 1024))
  91 #else
  92 # define        GEMINI_IPMQ_PBASE       GEMINI_RAMDISK_PEND
  93 #endif
  94 #if 0
  95 # define        GEMINI_IPMQ_SIZE        (2 * sizeof(ipm_queue_t))
  96 #else
  97 # define        GEMINI_IPMQ_SIZE        (2 * 4096)
  98 #endif
  99 #define GEMINI_IPMQ_PEND        (GEMINI_IPMQ_PBASE + GEMINI_IPMQ_SIZE)
 100
 101 /*
 102  * reserve physical RAM, as needed
 103  *
 104  * NOTE: the RAM used for the IPM queues is owned by the MASTER
 105  * so MASTER needs to reserve those pages from VM; the slave does not.
 106  * Hence, GEMINI_RAM_RESV_PEND is adjusted for the MASTER but not the SLAVE.
 107  */
 108 #define GEMINI_RAM_RESV_PBASE   0
 109 #define GEMINI_RAM_RESV_PEND    0
 110 #if defined(MEMORY_DISK_DYNAMIC)
 111 # undef  GEMINI_RAM_RESV_PBASE
 112 # undef  GEMINI_RAM_RESV_PEND
 113 # define GEMINI_RAM_RESV_PBASE  GEMINI_RAMDISK_PBASE
 114 # define GEMINI_RAM_RESV_PEND   GEMINI_RAMDISK_PEND
 115 #endif
 116 #if (NGEMINIIPM > 0) && !defined(GEMINI_SLAVE)
 117 # if (NGEMINIIPM > 1)
 118 #  error unexpected NGEMINIIPM > 1
 119 # endif
 120 # if (GEMINI_RAM_RESV_PBASE == 0)
 121 #  undef  GEMINI_RAM_RESV_PBASE
 122 #  define GEMINI_RAM_RESV_PBASE GEMINI_IPMQ_PBASE
 123 # endif
 124 # undef  GEMINI_RAM_RESV_PEND
 125 # define GEMINI_RAM_RESV_PEND   GEMINI_IPMQ_PEND
 126 #endif
 127
 128 /*
 129  * to map all of memory, including RAM owned by both core.
 130  * we start at nice round vbase to simplify conversion
 131  * from VA to PA and back
 132  */
 133 #define GEMINI_ALLMEM_PBASE     0
 134 #define GEMINI_ALLMEM_VBASE     0xf0000000
 135 #define GEMINI_ALLMEM_SIZE      128             /* units of MB */
 136
 137
 138 #endif /* _EVBARM_GEMINI_GEMINI_H */