a10_machdep.c revision 259365
154561Sbp/*- 254561Sbp * Copyright (c) 2012 Ganbold Tsagaankhuu <ganbold@gmail.com> 370711Sobrien * All rights reserved. 454561Sbp * 570711Sobrien * This code is derived from software written for Brini by Mark Brinicombe 670711Sobrien * 754561Sbp * Redistribution and use in source and binary forms, with or without 854561Sbp * modification, are permitted provided that the following conditions 954561Sbp * are met: 1059061Sbp * 1. Redistributions of source code must retain the above copyright 1154561Sbp * notice, this list of conditions and the following disclaimer. 1254561Sbp * 2. Redistributions in binary form must reproduce the above copyright 1354561Sbp * notice, this list of conditions and the following disclaimer in the 1454561Sbp * documentation and/or other materials provided with the distribution. 1554561Sbp * 1654561Sbp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1754561Sbp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1854561Sbp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19151350Syar * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2054561Sbp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2154561Sbp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2254561Sbp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2354561Sbp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2454561Sbp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2554561Sbp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2656424Sbp * SUCH DAMAGE. 2756424Sbp * 2856424Sbp * from: FreeBSD: //depot/projects/arm/src/sys/arm/ti/ti_machdep.c 2956424Sbp */ 3056424Sbp 3156424Sbp#include "opt_ddb.h" 32151350Syar#include "opt_platform.h" 3356424Sbp 3460966Speter#include <sys/cdefs.h> 35__FBSDID("$FreeBSD: stable/10/sys/arm/allwinner/a10_machdep.c 259365 2013-12-14 00:16:08Z ian $"); 36 37#define _ARM32_BUS_DMA_PRIVATE 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/bus.h> 41 42#include <vm/vm.h> 43#include <vm/pmap.h> 44 45#include <machine/bus.h> 46#include <machine/devmap.h> 47#include <machine/machdep.h> 48 49#include <dev/fdt/fdt_common.h> 50 51#include <arm/allwinner/a10_wdog.h> 52 53/* Start of address space used for bootstrap map */ 54#define DEVMAP_BOOTSTRAP_MAP_START 0xE0000000 55 56 57vm_offset_t 58initarm_lastaddr(void) 59{ 60 61 return (DEVMAP_BOOTSTRAP_MAP_START); 62} 63 64void 65initarm_early_init(void) 66{ 67 68} 69 70void 71initarm_gpio_init(void) 72{ 73} 74 75void 76initarm_late_init(void) 77{ 78} 79 80#define FDT_DEVMAP_MAX (1 + 2 + 1 + 1) 81static struct arm_devmap_entry fdt_devmap[FDT_DEVMAP_MAX] = { 82 { 0, 0, 0, 0, 0, } 83}; 84 85/* 86 * Construct pmap_devmap[] with DT-derived config data. 87 */ 88int 89initarm_devmap_init(void) 90{ 91 int i = 0; 92 93 fdt_devmap[i].pd_va = 0xE1C00000; 94 fdt_devmap[i].pd_pa = 0x01C00000; 95 fdt_devmap[i].pd_size = 0x00400000; /* 4 MB */ 96 fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE; 97 fdt_devmap[i].pd_cache = PTE_DEVICE; 98 99 i++; 100 101 arm_devmap_register_table(&fdt_devmap[0]); 102 103 return (0); 104} 105 106struct arm32_dma_range * 107bus_dma_get_range(void) 108{ 109 return (NULL); 110} 111 112int 113bus_dma_get_range_nb(void) 114{ 115 return (0); 116} 117 118void 119cpu_reset() 120{ 121 a10wd_watchdog_reset(); 122 printf("Reset failed!\n"); 123 while (1); 124} 125