1 /*- 2 * Copyright (c) 1994-1998 Mark Brinicombe. 3 * Copyright (c) 1994 Brini. 4 * All rights reserved. 5 * 6 * This code is derived from software written for Brini by Mark Brinicombe 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Brini. 19 * 4. The name of the company nor the name of the author may be used to 20 * endorse or promote products derived from this software without specific 21 * prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED 24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from: FreeBSD: //depot/projects/arm/src/sys/arm/at91/kb920x_machdep.c, rev 45 36 */ 37 38 #include "opt_platform.h" 39 40 #include <sys/cdefs.h> 41 __FBSDID("$FreeBSD$"); 42 43 #define _ARM32_BUS_DMA_PRIVATE 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/bus.h> 47 48 #include <vm/vm.h> 49 #include <vm/pmap.h> 50 51 #include <machine/bus.h> 52 #include <machine/devmap.h> 53 #include <machine/machdep.h> 54 55 #include <arm/ti/omap4/omap4_reg.h> 56 57 /* Start of address space used for bootstrap map */ 58 #define DEVMAP_BOOTSTRAP_MAP_START 0xF0000000 59 60 void (*ti_cpu_reset)(void); 61 62 vm_offset_t 63 initarm_lastaddr(void) 64 { 65 66 return (DEVMAP_BOOTSTRAP_MAP_START); 67 } 68 69 void 70 initarm_early_init(void) 71 { 72 73 ti_cpu_reset = NULL; 74 } 75 76 void 77 initarm_gpio_init(void) 78 { 79 } 80 81 void 82 initarm_late_init(void) 83 { 84 } 85 86 #define FDT_DEVMAP_MAX (2) // FIXME 87 static struct arm_devmap_entry fdt_devmap[FDT_DEVMAP_MAX] = { 88 { 0, 0, 0, 0, 0, } 89 }; 90 91 92 /* 93 * Construct pmap_devmap[] with DT-derived config data. 94 */ 95 int 96 initarm_devmap_init(void) 97 { 98 int i = 0; 99 #if defined(SOC_OMAP4) 100 fdt_devmap[i].pd_va = 0xF8000000; 101 fdt_devmap[i].pd_pa = 0x48000000; 102 fdt_devmap[i].pd_size = 0x1000000; 103 fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE; 104 fdt_devmap[i].pd_cache = PTE_DEVICE; 105 i++; 106 #elif defined(SOC_TI_AM335X) 107 fdt_devmap[i].pd_va = 0xF4C00000; 108 fdt_devmap[i].pd_pa = 0x44C00000; /* L4_WKUP */ 109 fdt_devmap[i].pd_size = 0x400000; /* 4 MB */ 110 fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE; 111 fdt_devmap[i].pd_cache = PTE_DEVICE; 112 i++; 113 #else 114 #error "Unknown SoC" 115 #endif 116 117 arm_devmap_register_table(&fdt_devmap[0]); 118 return (0); 119 } 120 121 struct arm32_dma_range * 122 bus_dma_get_range(void) 123 { 124 125 return (NULL); 126 } 127 128 int 129 bus_dma_get_range_nb(void) 130 { 131 132 return (0); 133 } 134 135 void 136 cpu_reset() 137 { 138 if (ti_cpu_reset) 139 (*ti_cpu_reset)(); 140 else 141 printf("no cpu_reset implementation\n"); 142 printf("Reset failed!\n"); 143 while (1); 144 } 145