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/devmap.h> 56 #include <machine/machdep.h> 57 58 #include <dev/fdt/fdt_common.h> 59 60 #include <arm/broadcom/bcm2835/bcm2835_wdog.h> 61 62 /* Start of address space used for bootstrap map */ 63 #define DEVMAP_BOOTSTRAP_MAP_START 0xE0000000 64 65 vm_offset_t 66 initarm_lastaddr(void) 67 { 68 69 return (DEVMAP_BOOTSTRAP_MAP_START); 70 } 71 72 void 73 initarm_early_init(void) 74 { 75 76 } 77 78 void 79 initarm_gpio_init(void) 80 { 81 } 82 83 void 84 initarm_late_init(void) 85 { 86 phandle_t system; 87 pcell_t cells[2]; 88 int len; 89 90 system = OF_finddevice("/system"); 91 if (system != 0) { 92 len = OF_getprop(system, "linux,serial", &cells, sizeof(cells)); 93 if (len > 0) 94 board_set_serial(fdt64_to_cpu(*((uint64_t *)cells))); 95 96 len = OF_getprop(system, "linux,revision", &cells, sizeof(cells)); 97 if (len > 0) 98 board_set_revision(fdt32_to_cpu(*((uint32_t *)cells))); 99 } 100 } 101 102 #define FDT_DEVMAP_MAX (2) // FIXME 103 static struct arm_devmap_entry fdt_devmap[FDT_DEVMAP_MAX] = { 104 { 0, 0, 0, 0, 0, } 105 }; 106 107 108 /* 109 * Construct pmap_devmap[] with DT-derived config data. 110 */ 111 int 112 initarm_devmap_init(void) 113 { 114 int i = 0; 115 116 fdt_devmap[i].pd_va = 0xf2000000; 117 fdt_devmap[i].pd_pa = 0x20000000; 118 fdt_devmap[i].pd_size = 0x01000000; /* 1 MB */ 119 fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE; 120 fdt_devmap[i].pd_cache = PTE_DEVICE; 121 i++; 122 123 arm_devmap_register_table(&fdt_devmap[0]); 124 return (0); 125 } 126 127 struct arm32_dma_range * 128 bus_dma_get_range(void) 129 { 130 131 return (NULL); 132 } 133 134 int 135 bus_dma_get_range_nb(void) 136 { 137 138 return (0); 139 } 140 141 void 142 cpu_reset() 143 { 144 bcmwd_watchdog_reset(); 145 while (1); 146 } 147 148