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 #if defined(SOC_OMAP4) 62 static platform_attach_t omap4_attach; 63 static platform_devmap_init_t ti_omap4_devmap_init; 64 #endif 65 #if defined(SOC_TI_AM335X) 66 static platform_attach_t ti_am335x_attach; 67 static platform_devmap_init_t ti_am335x_devmap_init; 68 #endif 69 static platform_cpu_reset_t ti_plat_cpu_reset; 70 71 void (*ti_cpu_reset)(void) = NULL; 72 73 int _ti_chip = -1; 74 75 #if defined(SOC_OMAP4) 76 static int 77 omap4_attach(platform_t plat) 78 { 79 _ti_chip = CHIP_OMAP_4; 80 return (0); 81 } 82 #endif 83 84 #if defined(SOC_TI_AM335X) 85 static int 86 ti_am335x_attach(platform_t plat) 87 { 88 _ti_chip = CHIP_AM335X; 89 return (0); 90 } 91 #endif 92 93 /* 94 * Construct static devmap entries to map out the most frequently used 95 * peripherals using 1mb section mappings. 96 */ 97 #if defined(SOC_OMAP4) 98 static int 99 ti_omap4_devmap_init(platform_t plat) 100 { 101 devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */ 102 devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_CFG devices */ 103 return (0); 104 } 105 #endif 106 107 #if defined(SOC_TI_AM335X) 108 static int 109 ti_am335x_devmap_init(platform_t plat) 110 { 111 112 devmap_add_entry(0x44C00000, 0x00400000); /* 4mb L4_WKUP devices*/ 113 devmap_add_entry(0x47400000, 0x00100000); /* 1mb USB */ 114 devmap_add_entry(0x47800000, 0x00100000); /* 1mb mmchs2 */ 115 devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */ 116 devmap_add_entry(0x49000000, 0x00100000); /* 1mb edma3 */ 117 devmap_add_entry(0x49800000, 0x00300000); /* 3mb edma3 */ 118 devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_FAST devices*/ 119 return (0); 120 } 121 #endif 122 123 static void 124 ti_plat_cpu_reset(platform_t plat) 125 { 126 if (ti_cpu_reset) 127 (*ti_cpu_reset)(); 128 else 129 printf("no cpu_reset implementation\n"); 130 } 131 132 #if defined(SOC_OMAP4) 133 static platform_method_t omap4_methods[] = { 134 PLATFORMMETHOD(platform_attach, omap4_attach), 135 PLATFORMMETHOD(platform_devmap_init, ti_omap4_devmap_init), 136 PLATFORMMETHOD(platform_cpu_reset, ti_plat_cpu_reset), 137 138 #ifdef SMP 139 PLATFORMMETHOD(platform_mp_start_ap, omap4_mp_start_ap), 140 PLATFORMMETHOD(platform_mp_setmaxid, omap4_mp_setmaxid), 141 #endif 142 PLATFORMMETHOD_END, 143 }; 144 FDT_PLATFORM_DEF(omap4, "omap4", 0, "ti,omap4430", 200); 145 #endif 146 147 #if defined(SOC_TI_AM335X) 148 static platform_method_t am335x_methods[] = { 149 PLATFORMMETHOD(platform_attach, ti_am335x_attach), 150 PLATFORMMETHOD(platform_devmap_init, ti_am335x_devmap_init), 151 PLATFORMMETHOD(platform_cpu_reset, ti_plat_cpu_reset), 152 153 PLATFORMMETHOD_END, 154 }; 155 156 FDT_PLATFORM_DEF(am335x, "am335x", 0, "ti,am33xx", 200); 157 #endif 158