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 #include <machine/platformvar.h> 55 56 #include <arm/ti/omap4/omap4_reg.h> 57 58 #include "platform_if.h" 59 60 void (*ti_cpu_reset)(void) = NULL; 61 62 static vm_offset_t 63 ti_lastaddr(platform_t plat) 64 { 65 66 return (arm_devmap_lastaddr()); 67 } 68 69 /* 70 * Construct static devmap entries to map out the most frequently used 71 * peripherals using 1mb section mappings. 72 */ 73 #if defined(SOC_OMAP4) 74 static int 75 ti_omap4_devmap_init(platform_t plat) 76 { 77 arm_devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */ 78 arm_devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_CFG devices */ 79 return (0); 80 } 81 #endif 82 83 #if defined(SOC_TI_AM335X) 84 static int 85 ti_am335x_devmap_init(platform_t plat) 86 { 87 88 arm_devmap_add_entry(0x44C00000, 0x00400000); /* 4mb L4_WKUP devices*/ 89 arm_devmap_add_entry(0x47400000, 0x00100000); /* 1mb USB */ 90 arm_devmap_add_entry(0x47800000, 0x00100000); /* 1mb mmchs2 */ 91 arm_devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */ 92 arm_devmap_add_entry(0x49000000, 0x00100000); /* 1mb edma3 */ 93 arm_devmap_add_entry(0x49800000, 0x00300000); /* 3mb edma3 */ 94 arm_devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_FAST devices*/ 95 return (0); 96 } 97 #endif 98 99 struct arm32_dma_range * 100 bus_dma_get_range(void) 101 { 102 103 return (NULL); 104 } 105 106 int 107 bus_dma_get_range_nb(void) 108 { 109 110 return (0); 111 } 112 113 void 114 cpu_reset() 115 { 116 if (ti_cpu_reset) 117 (*ti_cpu_reset)(); 118 else 119 printf("no cpu_reset implementation\n"); 120 printf("Reset failed!\n"); 121 while (1); 122 } 123 124 #if defined(SOC_OMAP4) 125 static platform_method_t omap4_methods[] = { 126 PLATFORMMETHOD(platform_devmap_init, ti_omap4_devmap_init), 127 PLATFORMMETHOD(platform_lastaddr, ti_lastaddr), 128 129 PLATFORMMETHOD_END, 130 }; 131 FDT_PLATFORM_DEF(omap4, "omap4", 0, "ti,omap4430"); 132 #endif 133 134 #if defined(SOC_TI_AM335X) 135 static platform_method_t am335x_methods[] = { 136 PLATFORMMETHOD(platform_devmap_init, ti_am335x_devmap_init), 137 PLATFORMMETHOD(platform_lastaddr, ti_lastaddr), 138 139 PLATFORMMETHOD_END, 140 }; 141 142 FDT_PLATFORM_DEF(am335x, "am335x", 0, "ti,am335x"); 143 #endif 144