1/* ********************************************************************* 2 * Broadcom Common Firmware Environment (CFE) 3 * 4 * Board device initialization File: bcm91280e_pci.c 5 * 6 * This is the part of the board support package for boards 7 * that support PCI. It describes the board-specific slots/devices 8 * and wiring thereof. 9 * 10 ********************************************************************* 11 * 12 * Copyright 2000,2001,2002,2003 13 * Broadcom Corporation. All rights reserved. 14 * 15 * This software is furnished under license and may be used and 16 * copied only in accordance with the following terms and 17 * conditions. Subject to these conditions, you may download, 18 * copy, install, use, modify and distribute modified or unmodified 19 * copies of this software in source and/or binary form. No title 20 * or ownership is transferred hereby. 21 * 22 * 1) Any source code used, modified or distributed must reproduce 23 * and retain this copyright notice and list of conditions 24 * as they appear in the source file. 25 * 26 * 2) No right is granted to use any trade name, trademark, or 27 * logo of Broadcom Corporation. The "Broadcom Corporation" 28 * name may not be used to endorse or promote products derived 29 * from this software without the prior written permission of 30 * Broadcom Corporation. 31 * 32 * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR 33 * IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED 34 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 35 * PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT 36 * SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN 37 * PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT, 38 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 39 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 40 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 41 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 42 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 43 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF 44 * THE POSSIBILITY OF SUCH DAMAGE. 45 ********************************************************************* */ 46 47#include "cfe.h" 48 49#include "sbmips.h" 50#include "bcm91280e.h" 51#include "bcm1480_regs.h" 52 53#include "pcireg.h" 54#include "pcivar.h" 55#include "pci_internal.h" 56 57/* PCI interrupt mapping on the Cupertino (BCM91280E) board: 58 The BCM91280E is wired for PCI Device mode and has no interrupt 59 inputs. 60*/ 61 62/* Return the base shift of a slot or device on the motherboard. 63 This is board specific, for the bcm91280e only. */ 64uint8_t 65pci_int_shift_0(pcitag_t tag) 66{ 67 return 0; 68} 69 70/* Return the mapping of a bcm91280e device/function interrupt to an 71 interrupt line. For the BCM1480, return 1-4 to indicate the 72 pci_inta - pci_intd inputs to the interrupt mapper, respectively, 73 or 0 if there is no mapping. */ 74uint8_t 75pci_int_map_0(pcitag_t tag) 76{ 77 return 0; 78} 79 80/* PCI-X clock initialization functions. */ 81 82void 83pci_clock_reset(void) 84{ 85 /* Device mode: no on-board clock generator. */ 86} 87 88void 89pci_clock_enable(int on) 90{ 91 /* No separate enable. */ 92} 93 94unsigned int 95pci_clock_select(unsigned int freq) 96{ 97 unsigned int selected; 98 99 /* Clear and selectively reset the controlling GPIO pins. */ 100 101 102 if (freq >= 133) { 103 selected = 133; 104 } 105 else if (freq >= 100) { 106 selected = 100; 107 } 108 else if (freq >= 66) { 109 selected = 66; 110 } 111 else { 112 selected = 33; 113 } 114 115 return selected; 116} 117 118 119/* Local HT topology (master/slave) information. */ 120 121int 122ldt_slave_mode(int port) 123{ 124 /* For now, all ports are nominally masters. */ 125 126 return 0; 127} 128