1/* ********************************************************************* 2 * Broadcom Common Firmware Environment (CFE) 3 * 4 * Physical memory peek/poke routines File: lib_physio.h 5 * 6 * Little stub routines to allow access to arbitrary physical 7 * addresses. In most cases this should not be needed, as 8 * many physical addresses are within kseg1, but this handles 9 * the cases that are not automagically, so we don't need 10 * to mess up the code with icky macros and such. 11 * 12 * Author: Mitch Lichtenberg 13 * 14 ********************************************************************* 15 * 16 * Copyright 2000,2001,2002,2003 17 * Broadcom Corporation. All rights reserved. 18 * 19 * This software is furnished under license and may be used and 20 * copied only in accordance with the following terms and 21 * conditions. Subject to these conditions, you may download, 22 * copy, install, use, modify and distribute modified or unmodified 23 * copies of this software in source and/or binary form. No title 24 * or ownership is transferred hereby. 25 * 26 * 1) Any source code used, modified or distributed must reproduce 27 * and retain this copyright notice and list of conditions 28 * as they appear in the source file. 29 * 30 * 2) No right is granted to use any trade name, trademark, or 31 * logo of Broadcom Corporation. The "Broadcom Corporation" 32 * name may not be used to endorse or promote products derived 33 * from this software without the prior written permission of 34 * Broadcom Corporation. 35 * 36 * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR 37 * IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED 38 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 39 * PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT 40 * SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN 41 * PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT, 42 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 43 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 44 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 45 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 46 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 47 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF 48 * THE POSSIBILITY OF SUCH DAMAGE. 49 ********************************************************************* */ 50 51 52#ifndef _LIB_PHYSIO_H 53#define _LIB_PHYSIO_H 54 55typedef long physaddr_t; /* 32-bit-only processors can't have >32bit pa's */ 56 57extern void phys_write8(physaddr_t a,uint8_t b); 58extern void phys_write16(physaddr_t a,uint16_t b); 59extern void phys_write32(physaddr_t a,uint32_t b); 60extern void phys_write64(physaddr_t a,uint64_t b); 61extern uint8_t phys_read8(physaddr_t a); 62extern uint16_t phys_read16(physaddr_t a); 63extern uint32_t phys_read32(physaddr_t a); 64extern uint64_t phys_read64(physaddr_t a); 65 66extern void phys_write16_swapped(physaddr_t a,uint16_t b); 67extern void phys_write32_swapped(physaddr_t a,uint32_t b); 68extern uint16_t phys_read16_swapped(physaddr_t a); 69extern uint32_t phys_read32_swapped(physaddr_t a); 70 71#endif 72