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platform.h revision 1.3 
      1 /*	$NetBSD: platform.h,v 1.3 2019/05/18 08:49:23 skrll 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 Nick Hudson
      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_BCM53XX_PLATFORM_H
     33 #define _EVBARM_BCM53XX_PLATFORM_H
     34 
     35 #include <arm/broadcom/bcm53xx_reg.h>
     36 
     37 /*
     38  * Memory will be mapped starting at 0x8000_0000 through 0xbfff_ffff
     39  * Kernel VM space: KERNEL_VM_BASE to 0xc0000000.  Leave 1MB unused.
     40  */
     41 #define	KERNEL_VM_BASE		(KERNEL_BASE + 0x40000000)
     42 #if BCM53XX_IO_SIZE >= L1_SS_SIZE
     43 #define	KERNEL_VM_TOP		((0xfff00000 - BCM53XX_IO_SIZE) & -L1_SS_SIZE)
     44 #else
     45 #define	KERNEL_VM_TOP		(0xfff00000 - BCM53XX_IO_SIZE)
     46 #endif
     47 #define	KERNEL_VM_SIZE		(KERNEL_VM_TOP - KERNEL_VM_BASE)
     48 
     49 /*
     50  * BCM53xx ARM Peripherals.  Their physical address would live in the user
     51  * address space, so we can't map 1:1 VA:PA.  So shove them just after the
     52  * top of the kernel VM.
     53  */
     54 
     55 #define	KERNEL_IO_VBASE			KERNEL_VM_TOP
     56 
     57 #define	KERNEL_IO_PCIE0_OWIN_VBASE	KERNEL_IO_VBASE
     58 #define	KERNEL_IO_PCIE1_OWIN_VBASE	(KERNEL_IO_PCIE0_OWIN_VBASE + BCM53XX_PCIE0_OWIN_SIZE)
     59 #define	KERNEL_IO_PCIE2_OWIN_VBASE	(KERNEL_IO_PCIE1_OWIN_VBASE + BCM53XX_PCIE1_OWIN_SIZE)
     60 #define	KERNEL_IO_IOREG_VBASE		(KERNEL_IO_PCIE2_OWIN_VBASE + BCM53XX_PCIE2_OWIN_SIZE)
     61 #define	KERNEL_IO_ARMCORE_VBASE		(KERNEL_IO_IOREG_VBASE + BCM53XX_IOREG_SIZE)
     62 #define	KERNEL_IO_ROM_REGION_VBASE	(KERNEL_IO_ARMCORE_VBASE + BCM53XX_ARMCORE_SIZE)
     63 #define	KERNEL_IO_END_VBASE		(KERNEL_IO_ROM_REGION_VBASE + BCM53XX_ROM_REGION_SIZE)
     64 
     65 #endif	/* _EVBARM_BCM53XX_PLATFORM_H */
     66