/*      $NetBSD: gemini.h,v 1.8 2008/12/06 05:22:39 cliff Exp $ */

/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas <[email protected]>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef _EVBARM_GEMINI_GEMINI_H
#define _EVBARM_GEMINI_GEMINI_H

/*
* sanity check opt_gemini.h
*/
#include "opt_gemini.h"
#if !defined(GEMINI)
# error must define GEMINI to use gemini.h
#endif
#if !defined(GEMINI_SINGLE) && !defined(GEMINI_MASTER) && !defined(GEMINI_SLAVE)
# error must define one of GEMINI_SINGLE, GEMINI_MASTER, or GEMINI_SLAVE
#endif
#if defined(GEMINI_SINGLE)
# if defined(GEMINI_MASTER) || defined(GEMINI_SLAVE)
#  error GEMINI_SINGLE can not define either GEMINI_MASTER or GEMINI_SLAVE
# endif
#else
# if defined(GEMINI_MASTER) && defined(GEMINI_SLAVE)
#  error can not define both GEMINI_MASTER and GEMINI_SLAVE
# endif
#endif

#include <machine/vmparam.h>
#include <arm/gemini/gemini_reg.h>


/*
* Kernel VM space: 192MB at KERNEL_VM_BASE
*/
#define KERNEL_VM_BASE          ((KERNEL_BASE + 0x01000000) & ~(0x400000-1))
#define KERNEL_VM_SIZE          0x0C000000

/*
* We devmap IO starting at KERNEL_VM_BASE + KERNEL_VM_SIZE
*/
#define GEMINI_KERNEL_IO_VBASE  (KERNEL_VM_BASE + KERNEL_VM_SIZE)
#define GEMINI_GLOBAL_VBASE     GEMINI_KERNEL_IO_VBASE
#define GEMINI_WATCHDOG_VBASE   (GEMINI_GLOBAL_VBASE   + L1_S_SIZE)
#define GEMINI_UART_VBASE       (GEMINI_WATCHDOG_VBASE + L1_S_SIZE)
#define GEMINI_LPCHC_VBASE      (GEMINI_UART_VBASE     + L1_S_SIZE)
#define GEMINI_LPCIO_VBASE      (GEMINI_LPCHC_VBASE    + L1_S_SIZE)
#define GEMINI_TIMER_VBASE      (GEMINI_LPCIO_VBASE    + L1_S_SIZE)
#define GEMINI_DRAMC_VBASE      (GEMINI_TIMER_VBASE    + L1_S_SIZE)

/*
* mapping of physical RAM
*/
#define GEMINI_RAMDISK_VBASE    (GEMINI_DRAMC_VBASE    + L1_S_SIZE)
#define GEMINI_RAMDISK_PBASE    0x00800000
#define GEMINI_RAMDISK_SIZE     0x00300000
#define GEMINI_RAMDISK_PEND     (GEMINI_RAMDISK_PBASE + GEMINI_RAMDISK_SIZE)

#define GEMINI_IPMQ_VBASE                                       \
       ((GEMINI_RAMDISK_VBASE + GEMINI_RAMDISK_SIZE            \
         + (L1_S_SIZE * 4) - 1) & ~((L1_S_SIZE * 4) - 1))
               /* round up for l2pt alignment */
#ifdef GEMINI_SLAVE
# define        GEMINI_IPMQ_PBASE       (GEMINI_RAMDISK_PEND + (GEMINI_BUSBASE * 1024 * 1024))
#else
# define        GEMINI_IPMQ_PBASE       GEMINI_RAMDISK_PEND
#endif
#if 0
# define        GEMINI_IPMQ_SIZE        (2 * sizeof(ipm_queue_t))
#else
# define        GEMINI_IPMQ_SIZE        (2 * 4096)
#endif
#define GEMINI_IPMQ_PEND        (GEMINI_IPMQ_PBASE + GEMINI_IPMQ_SIZE)

/*
* reserve physical RAM, as needed
*
* NOTE: the RAM used for the IPM queues is owned by the MASTER
* so MASTER needs to reserve those pages from VM; the slave does not.
* Hence, GEMINI_RAM_RESV_PEND is adjusted for the MASTER but not the SLAVE.
*/
#define GEMINI_RAM_RESV_PBASE   0
#define GEMINI_RAM_RESV_PEND    0
#if defined(MEMORY_DISK_DYNAMIC)
# undef  GEMINI_RAM_RESV_PBASE
# undef  GEMINI_RAM_RESV_PEND
# define GEMINI_RAM_RESV_PBASE  GEMINI_RAMDISK_PBASE
# define GEMINI_RAM_RESV_PEND   GEMINI_RAMDISK_PEND
#endif
#if (NGEMINIIPM > 0) && !defined(GEMINI_SLAVE)
# if (NGEMINIIPM > 1)
#  error unexpected NGEMINIIPM > 1
# endif
# if (GEMINI_RAM_RESV_PBASE == 0)
#  undef  GEMINI_RAM_RESV_PBASE
#  define GEMINI_RAM_RESV_PBASE GEMINI_IPMQ_PBASE
# endif
# undef  GEMINI_RAM_RESV_PEND
# define GEMINI_RAM_RESV_PEND   GEMINI_IPMQ_PEND
#endif

/*
* to map all of memory, including RAM owned by both core.
* we start at nice round vbase to simplify conversion
* from VA to PA and back
*/
#define GEMINI_ALLMEM_PBASE     0
#define GEMINI_ALLMEM_VBASE     0xf0000000
#define GEMINI_ALLMEM_SIZE      128             /* units of MB */


#endif /* _EVBARM_GEMINI_GEMINI_H */

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