1 /*- 2 * Copyright (c) 2013 Ruslan Bukin <br@bsdpad.com> 3 * Copyright (c) 2015 Semihalf 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/bus.h> 35 #include <sys/lock.h> 36 #include <sys/mutex.h> 37 #include <sys/devmap.h> 38 39 #include <vm/vm.h> 40 #include <vm/pmap.h> 41 42 #include <machine/bus.h> 43 #include <machine/frame.h> /* For trapframe_t, used in <machine/machdep.h> */ 44 #include <machine/machdep.h> 45 #include <machine/platform.h> 46 #include <machine/fdt.h> 47 48 #include <dev/fdt/fdt_common.h> 49 50 #include "opt_ddb.h" 51 #include "opt_platform.h" 52 53 #define DEVMAP_MAX_VA_ADDRESS 0xF0000000 54 bus_addr_t al_devmap_pa; 55 bus_addr_t al_devmap_size; 56 57 int alpine_get_devmap_base(bus_addr_t *pa, bus_addr_t *size); 58 59 vm_offset_t 60 platform_lastaddr(void) 61 { 62 63 return (DEVMAP_MAX_VA_ADDRESS); 64 } 65 66 void 67 platform_probe_and_attach(void) 68 { 69 70 } 71 72 void 73 platform_gpio_init(void) 74 { 75 76 } 77 78 void 79 platform_late_init(void) 80 { 81 82 } 83 84 /* 85 * Construct devmap table with DT-derived config data. 86 */ 87 int 88 platform_devmap_init(void) 89 { 90 alpine_get_devmap_base(&al_devmap_pa, &al_devmap_size); 91 devmap_add_entry(al_devmap_pa, al_devmap_size); 92 return (0); 93 } 94