1 /*- 2 * Copyright (c) 2015 Andrew Turner 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 */ 27 28 #include "opt_platform.h" 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #define _ARM32_BUS_DMA_PRIVATE 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/devmap.h> 37 38 #include <vm/vm.h> 39 40 #include <machine/bus.h> 41 #include <machine/platform.h> 42 #include <machine/platformvar.h> 43 44 #include <arm/qemu/virt_mp.h> 45 46 #include "platform_if.h" 47 48 struct arm32_dma_range * 49 bus_dma_get_range(void) 50 { 51 52 return (NULL); 53 } 54 55 int 56 bus_dma_get_range_nb(void) 57 { 58 59 return (0); 60 } 61 62 void 63 cpu_reset(void) 64 { 65 66 while (1); 67 } 68 69 static vm_offset_t 70 virt_lastaddr(platform_t plat) 71 { 72 73 return (devmap_lastaddr()); 74 } 75 76 /* 77 * Set up static device mappings. 78 */ 79 static int 80 virt_devmap_init(platform_t plat) 81 { 82 83 devmap_add_entry(0x09000000, 0x100000); /* Uart */ 84 return (0); 85 } 86 87 static platform_method_t virt_methods[] = { 88 PLATFORMMETHOD(platform_devmap_init, virt_devmap_init), 89 PLATFORMMETHOD(platform_lastaddr, virt_lastaddr), 90 91 #ifdef SMP 92 PLATFORMMETHOD(platform_mp_start_ap, virt_mp_start_ap), 93 PLATFORMMETHOD(platform_mp_setmaxid, virt_mp_setmaxid), 94 #endif 95 96 PLATFORMMETHOD_END, 97 }; 98 99 FDT_PLATFORM_DEF(virt, "virt", 0, "linux,dummy-virt", 1); 100 101 static int 102 gem5_devmap_init(platform_t plat) 103 { 104 105 devmap_add_entry(0x1c090000, 0x100000); /* Uart */ 106 return (0); 107 } 108 109 static platform_method_t gem5_methods[] = { 110 PLATFORMMETHOD(platform_devmap_init, gem5_devmap_init), 111 PLATFORMMETHOD(platform_lastaddr, virt_lastaddr), 112 113 PLATFORMMETHOD_END, 114 }; 115 116 FDT_PLATFORM_DEF(gem5, "gem5", 0, "arm,vexpress", 1); 117