1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1994-1998 Mark Brinicombe. 5 * Copyright (c) 1994 Brini. 6 * All rights reserved. 7 * 8 * This code is derived from software written for Brini by Mark Brinicombe 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by Brini. 21 * 4. The name of the company nor the name of the author may be used to 22 * endorse or promote products derived from this software without specific 23 * prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED 26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 28 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 29 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 30 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * from: FreeBSD: //depot/projects/arm/src/sys/arm/at91/kb920x_machdep.c, rev 45 38 */ 39 40 #include "opt_platform.h" 41 42 #include <sys/cdefs.h> 43 __FBSDID("$FreeBSD$"); 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/bus.h> 48 #include <sys/devmap.h> 49 50 #include <vm/vm.h> 51 #include <vm/pmap.h> 52 53 #include <machine/bus.h> 54 #include <machine/machdep.h> 55 #include <machine/platformvar.h> 56 57 #include <arm/ti/omap4/omap4_machdep.h> 58 #include <arm/ti/omap4/omap4_reg.h> 59 #include <arm/ti/ti_cpuid.h> 60 61 #include "platform_if.h" 62 63 #if defined(SOC_OMAP4) 64 #include "platform_pl310_if.h" 65 66 static platform_attach_t omap4_attach; 67 static platform_devmap_init_t ti_omap4_devmap_init; 68 #endif 69 #if defined(SOC_TI_AM335X) 70 static platform_attach_t ti_am335x_attach; 71 static platform_devmap_init_t ti_am335x_devmap_init; 72 #endif 73 static platform_cpu_reset_t ti_plat_cpu_reset; 74 75 void (*ti_cpu_reset)(void) = NULL; 76 77 int _ti_chip = -1; 78 79 #if defined(SOC_OMAP4) 80 static int 81 omap4_attach(platform_t plat) 82 { 83 _ti_chip = CHIP_OMAP_4; 84 return (0); 85 } 86 #endif 87 88 #if defined(SOC_TI_AM335X) 89 static int 90 ti_am335x_attach(platform_t plat) 91 { 92 _ti_chip = CHIP_AM335X; 93 return (0); 94 } 95 #endif 96 97 /* 98 * Construct static devmap entries to map out the most frequently used 99 * peripherals using 1mb section mappings. 100 */ 101 #if defined(SOC_OMAP4) 102 static int 103 ti_omap4_devmap_init(platform_t plat) 104 { 105 devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */ 106 devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_CFG devices */ 107 return (0); 108 } 109 #endif 110 111 #if defined(SOC_TI_AM335X) 112 static int 113 ti_am335x_devmap_init(platform_t plat) 114 { 115 116 devmap_add_entry(0x44C00000, 0x00400000); /* 4mb L4_WKUP devices*/ 117 devmap_add_entry(0x47400000, 0x00100000); /* 1mb USB */ 118 devmap_add_entry(0x47800000, 0x00100000); /* 1mb mmchs2 */ 119 devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */ 120 devmap_add_entry(0x49000000, 0x00100000); /* 1mb edma3 */ 121 devmap_add_entry(0x49800000, 0x00300000); /* 3mb edma3 */ 122 devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_FAST devices*/ 123 return (0); 124 } 125 #endif 126 127 static void 128 ti_plat_cpu_reset(platform_t plat) 129 { 130 if (ti_cpu_reset) 131 (*ti_cpu_reset)(); 132 else 133 printf("no cpu_reset implementation\n"); 134 } 135 136 #if defined(SOC_OMAP4) 137 static platform_method_t omap4_methods[] = { 138 PLATFORMMETHOD(platform_attach, omap4_attach), 139 PLATFORMMETHOD(platform_devmap_init, ti_omap4_devmap_init), 140 PLATFORMMETHOD(platform_cpu_reset, ti_plat_cpu_reset), 141 142 #ifdef SMP 143 PLATFORMMETHOD(platform_mp_start_ap, omap4_mp_start_ap), 144 PLATFORMMETHOD(platform_mp_setmaxid, omap4_mp_setmaxid), 145 #endif 146 147 PLATFORMMETHOD(platform_pl310_init, omap4_pl310_init), 148 PLATFORMMETHOD(platform_pl310_write_ctrl, omap4_pl310_write_ctrl), 149 PLATFORMMETHOD(platform_pl310_write_debug, omap4_pl310_write_debug), 150 151 PLATFORMMETHOD_END, 152 }; 153 FDT_PLATFORM_DEF(omap4, "omap4", 0, "ti,omap4430", 200); 154 #endif 155 156 #if defined(SOC_TI_AM335X) 157 static platform_method_t am335x_methods[] = { 158 PLATFORMMETHOD(platform_attach, ti_am335x_attach), 159 PLATFORMMETHOD(platform_devmap_init, ti_am335x_devmap_init), 160 PLATFORMMETHOD(platform_cpu_reset, ti_plat_cpu_reset), 161 162 PLATFORMMETHOD_END, 163 }; 164 165 FDT_PLATFORM_DEF(am335x, "am335x", 0, "ti,am33xx", 200); 166 #endif 167