1 /*- 2 * Copyright (c) 2012 Oleksandr Tymoshenko. 3 * Copyright (c) 1994-1998 Mark Brinicombe. 4 * Copyright (c) 1994 Brini. 5 * All rights reserved. 6 * 7 * This code is derived from software written for Brini by Mark Brinicombe 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by Brini. 20 * 4. The name of the company nor the name of the author may be used to 21 * endorse or promote products derived from this software without specific 22 * prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED 25 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 27 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 28 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: FreeBSD: //depot/projects/arm/src/sys/arm/at91/kb920x_machdep.c, rev 45 37 */ 38 39 #include "opt_ddb.h" 40 #include "opt_platform.h" 41 #include "opt_global.h" 42 43 #include <sys/cdefs.h> 44 __FBSDID("$FreeBSD$"); 45 46 #define _ARM32_BUS_DMA_PRIVATE 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/bus.h> 50 51 #include <vm/vm.h> 52 #include <vm/pmap.h> 53 54 #include <machine/bus.h> 55 #include <machine/frame.h> /* For trapframe_t, used in <machine/machdep.h> */ 56 #include <machine/machdep.h> 57 #include <machine/pmap.h> 58 59 #include <dev/fdt/fdt_common.h> 60 61 #include <arm/broadcom/bcm2835/bcm2835_wdog.h> 62 63 /* Start of address space used for bootstrap map */ 64 #define DEVMAP_BOOTSTRAP_MAP_START 0xE0000000 65 66 vm_offset_t 67 initarm_lastaddr(void) 68 { 69 70 return (DEVMAP_BOOTSTRAP_MAP_START - ARM_NOCACHE_KVA_SIZE); 71 } 72 73 void 74 initarm_gpio_init(void) 75 { 76 } 77 78 void 79 initarm_late_init(void) 80 { 81 phandle_t system; 82 pcell_t cells[2]; 83 int len; 84 85 system = OF_finddevice("/system"); 86 if (system != 0) { 87 len = OF_getprop(system, "linux,serial", &cells, sizeof(cells)); 88 if (len > 0) 89 board_set_serial(fdt64_to_cpu(*((uint64_t *)cells))); 90 91 len = OF_getprop(system, "linux,revision", &cells, sizeof(cells)); 92 if (len > 0) 93 board_set_revision(fdt32_to_cpu(*((uint32_t *)cells))); 94 } 95 } 96 97 #define FDT_DEVMAP_MAX (2) // FIXME 98 static struct pmap_devmap fdt_devmap[FDT_DEVMAP_MAX] = { 99 { 0, 0, 0, 0, 0, } 100 }; 101 102 103 /* 104 * Construct pmap_devmap[] with DT-derived config data. 105 */ 106 int 107 platform_devmap_init(void) 108 { 109 int i = 0; 110 111 fdt_devmap[i].pd_va = 0xf2000000; 112 fdt_devmap[i].pd_pa = 0x20000000; 113 fdt_devmap[i].pd_size = 0x01000000; /* 1 MB */ 114 fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE; 115 fdt_devmap[i].pd_cache = PTE_DEVICE; 116 i++; 117 118 pmap_devmap_bootstrap_table = &fdt_devmap[0]; 119 return (0); 120 } 121 122 struct arm32_dma_range * 123 bus_dma_get_range(void) 124 { 125 126 return (NULL); 127 } 128 129 int 130 bus_dma_get_range_nb(void) 131 { 132 133 return (0); 134 } 135 136 void 137 cpu_reset() 138 { 139 bcmwd_watchdog_reset(); 140 while (1); 141 } 142 143