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 #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_machdep.h> 56 #include <arm/ti/omap4/omap4_reg.h> 57 #include <arm/ti/ti_cpuid.h> 58 59 #include "platform_if.h" 60 61 #if defined(SOC_OMAP4) 62 #include "platform_pl310_if.h" 63 64 static platform_attach_t omap4_attach; 65 static platform_devmap_init_t ti_omap4_devmap_init; 66 #endif 67 #if defined(SOC_TI_AM335X) 68 static platform_attach_t ti_am335x_attach; 69 static platform_devmap_init_t ti_am335x_devmap_init; 70 #endif 71 static platform_cpu_reset_t ti_plat_cpu_reset; 72 73 void (*ti_cpu_reset)(void) = NULL; 74 75 int _ti_chip = -1; 76 77 #if defined(SOC_OMAP4) 78 static int 79 omap4_attach(platform_t plat) 80 { 81 _ti_chip = CHIP_OMAP_4; 82 return (0); 83 } 84 #endif 85 86 #if defined(SOC_TI_AM335X) 87 static int 88 ti_am335x_attach(platform_t plat) 89 { 90 _ti_chip = CHIP_AM335X; 91 return (0); 92 } 93 #endif 94 95 /* 96 * Construct static devmap entries to map out the most frequently used 97 * peripherals using 1mb section mappings. 98 */ 99 #if defined(SOC_OMAP4) 100 static int 101 ti_omap4_devmap_init(platform_t plat) 102 { 103 devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */ 104 devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_CFG devices */ 105 return (0); 106 } 107 #endif 108 109 #if defined(SOC_TI_AM335X) 110 static int 111 ti_am335x_devmap_init(platform_t plat) 112 { 113 114 devmap_add_entry(0x44C00000, 0x00400000); /* 4mb L4_WKUP devices*/ 115 devmap_add_entry(0x47400000, 0x00100000); /* 1mb USB */ 116 devmap_add_entry(0x47800000, 0x00100000); /* 1mb mmchs2 */ 117 devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */ 118 devmap_add_entry(0x49000000, 0x00100000); /* 1mb edma3 */ 119 devmap_add_entry(0x49800000, 0x00300000); /* 3mb edma3 */ 120 devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_FAST devices*/ 121 return (0); 122 } 123 #endif 124 125 static void 126 ti_plat_cpu_reset(platform_t plat) 127 { 128 if (ti_cpu_reset) 129 (*ti_cpu_reset)(); 130 else 131 printf("no cpu_reset implementation\n"); 132 } 133 134 #if defined(SOC_OMAP4) 135 static platform_method_t omap4_methods[] = { 136 PLATFORMMETHOD(platform_attach, omap4_attach), 137 PLATFORMMETHOD(platform_devmap_init, ti_omap4_devmap_init), 138 PLATFORMMETHOD(platform_cpu_reset, ti_plat_cpu_reset), 139 140 #ifdef SMP 141 PLATFORMMETHOD(platform_mp_start_ap, omap4_mp_start_ap), 142 PLATFORMMETHOD(platform_mp_setmaxid, omap4_mp_setmaxid), 143 #endif 144 145 PLATFORMMETHOD(platform_pl310_init, omap4_pl310_init), 146 PLATFORMMETHOD(platform_pl310_write_ctrl, omap4_pl310_write_ctrl), 147 PLATFORMMETHOD(platform_pl310_write_debug, omap4_pl310_write_debug), 148 149 PLATFORMMETHOD_END, 150 }; 151 FDT_PLATFORM_DEF(omap4, "omap4", 0, "ti,omap4430", 200); 152 #endif 153 154 #if defined(SOC_TI_AM335X) 155 static platform_method_t am335x_methods[] = { 156 PLATFORMMETHOD(platform_attach, ti_am335x_attach), 157 PLATFORMMETHOD(platform_devmap_init, ti_am335x_devmap_init), 158 PLATFORMMETHOD(platform_cpu_reset, ti_plat_cpu_reset), 159 160 PLATFORMMETHOD_END, 161 }; 162 163 FDT_PLATFORM_DEF(am335x, "am335x", 0, "ti,am33xx", 200); 164 #endif 165