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
omap4_attach(platform_t plat)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
ti_am335x_attach(platform_t plat)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
ti_omap4_devmap_init(platform_t plat)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
ti_am335x_devmap_init(platform_t plat)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
ti_plat_cpu_reset(platform_t plat)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