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 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/bus.h> 46 #include <sys/devmap.h> 47 48 #include <vm/vm.h> 49 #include <vm/pmap.h> 50 51 #include <machine/bus.h> 52 #include <machine/machdep.h> 53 #include <machine/platformvar.h> 54 55 #include <arm/ti/omap4/omap4_reg.h> 56 #include <arm/ti/omap4/omap4_mp.h> 57 #include <arm/ti/ti_cpuid.h> 58 59 #include "platform_if.h" 60 61 void (*ti_cpu_reset)(void) = NULL; 62 63 int _ti_chip = -1; 64 65 #if defined(SOC_OMAP4) 66 static int 67 omap4_attach(platform_t plat) 68 { 69 _ti_chip = CHIP_OMAP_4; 70 return (0); 71 } 72 #endif 73 74 #if defined(SOC_TI_AM335X) 75 static int 76 ti_am335x_attach(platform_t plat) 77 { 78 _ti_chip = CHIP_AM335X; 79 return (0); 80 } 81 #endif 82 83 static vm_offset_t 84 ti_lastaddr(platform_t plat) 85 { 86 87 return (devmap_lastaddr()); 88 } 89 90 /* 91 * Construct static devmap entries to map out the most frequently used 92 * peripherals using 1mb section mappings. 93 */ 94 #if defined(SOC_OMAP4) 95 static int 96 ti_omap4_devmap_init(platform_t plat) 97 { 98 devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */ 99 devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_CFG devices */ 100 return (0); 101 } 102 #endif 103 104 #if defined(SOC_TI_AM335X) 105 static int 106 ti_am335x_devmap_init(platform_t plat) 107 { 108 109 devmap_add_entry(0x44C00000, 0x00400000); /* 4mb L4_WKUP devices*/ 110 devmap_add_entry(0x47400000, 0x00100000); /* 1mb USB */ 111 devmap_add_entry(0x47800000, 0x00100000); /* 1mb mmchs2 */ 112 devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */ 113 devmap_add_entry(0x49000000, 0x00100000); /* 1mb edma3 */ 114 devmap_add_entry(0x49800000, 0x00300000); /* 3mb edma3 */ 115 devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_FAST devices*/ 116 return (0); 117 } 118 #endif 119 120 static void 121 ti_plat_cpu_reset(platform_t plat) 122 { 123 if (ti_cpu_reset) 124 (*ti_cpu_reset)(); 125 else 126 printf("no cpu_reset implementation\n"); 127 } 128 129 #if defined(SOC_OMAP4) 130 static platform_method_t omap4_methods[] = { 131 PLATFORMMETHOD(platform_attach, omap4_attach), 132 PLATFORMMETHOD(platform_devmap_init, ti_omap4_devmap_init), 133 PLATFORMMETHOD(platform_lastaddr, ti_lastaddr), 134 PLATFORMMETHOD(platform_cpu_reset, ti_plat_cpu_reset), 135 136 #ifdef SMP 137 PLATFORMMETHOD(platform_mp_start_ap, omap4_mp_start_ap), 138 PLATFORMMETHOD(platform_mp_setmaxid, omap4_mp_setmaxid), 139 #endif 140 PLATFORMMETHOD_END, 141 }; 142 FDT_PLATFORM_DEF(omap4, "omap4", 0, "ti,omap4430", 200); 143 #endif 144 145 #if defined(SOC_TI_AM335X) 146 static platform_method_t am335x_methods[] = { 147 PLATFORMMETHOD(platform_attach, ti_am335x_attach), 148 PLATFORMMETHOD(platform_devmap_init, ti_am335x_devmap_init), 149 PLATFORMMETHOD(platform_lastaddr, ti_lastaddr), 150 PLATFORMMETHOD(platform_cpu_reset, ti_plat_cpu_reset), 151 152 PLATFORMMETHOD_END, 153 }; 154 155 FDT_PLATFORM_DEF(am335x, "am335x", 0, "ti,am33xx", 200); 156 #endif 157