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 void (*ti_cpu_reset)(void) = NULL; 58 59 vm_offset_t 60 initarm_lastaddr(void) 61 { 62 63 return (arm_devmap_lastaddr()); 64 } 65 66 void 67 initarm_early_init(void) 68 { 69 } 70 71 void 72 initarm_gpio_init(void) 73 { 74 } 75 76 void 77 initarm_late_init(void) 78 { 79 } 80 81 /* 82 * Construct static devmap entries to map out the most frequently used 83 * peripherals using 1mb section mappings. 84 */ 85 int 86 initarm_devmap_init(void) 87 { 88 #if defined(SOC_OMAP4) 89 arm_devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */ 90 arm_devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_CFG devices */ 91 #elif defined(SOC_TI_AM335X) 92 arm_devmap_add_entry(0x44C00000, 0x00400000); /* 4mb L4_WKUP devices*/ 93 arm_devmap_add_entry(0x47400000, 0x00100000); /* 1mb USB */ 94 arm_devmap_add_entry(0x47800000, 0x00100000); /* 1mb mmchs2 */ 95 arm_devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */ 96 arm_devmap_add_entry(0x49000000, 0x00100000); /* 1mb edma3 */ 97 arm_devmap_add_entry(0x49800000, 0x00300000); /* 3mb edma3 */ 98 arm_devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_FAST devices*/ 99 #else 100 #error "Unknown SoC" 101 #endif 102 return (0); 103 } 104 105 struct arm32_dma_range * 106 bus_dma_get_range(void) 107 { 108 109 return (NULL); 110 } 111 112 int 113 bus_dma_get_range_nb(void) 114 { 115 116 return (0); 117 } 118 119 void 120 cpu_reset() 121 { 122 if (ti_cpu_reset) 123 (*ti_cpu_reset)(); 124 else 125 printf("no cpu_reset implementation\n"); 126 printf("Reset failed!\n"); 127 while (1); 128 } 129