ti_machdep.c revision 266084 
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: stable/10/sys/arm/ti/ti_machdep.c 266084 2014-05-14 19:18:58Z ian $");
42
43#define _ARM32_BUS_DMA_PRIVATE
44#include <sys/param.h>
45#include <sys/systm.h>
46#include <sys/bus.h>
47
48#include <vm/vm.h>
49#include <vm/pmap.h>
50
51#include <machine/bus.h>
52#include <machine/devmap.h>
53#include <machine/machdep.h>
54
55#include <arm/ti/omap4/omap4_reg.h>
56
57void (*ti_cpu_reset)(void) = NULL;
58
59vm_offset_t
60initarm_lastaddr(void)
61{
62
63	return (arm_devmap_lastaddr());
64}
65
66void
67initarm_early_init(void)
68{
69}
70
71void
72initarm_gpio_init(void)
73{
74}
75
76void
77initarm_late_init(void)
78{
79}
80
81/*
82 * Construct static devmap entries to map out the most frequently used
83 * peripherals using 1mb section mappings.
84 */
85int
86initarm_devmap_init(void)
87{
88#if defined(SOC_OMAP4)
89	arm_devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */
90	arm_devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_CFG devices */
91#elif defined(SOC_TI_AM335X)
92	arm_devmap_add_entry(0x44C00000, 0x00400000); /* 4mb L4_WKUP devices*/
93	arm_devmap_add_entry(0x47400000, 0x00100000); /* 1mb USB            */
94	arm_devmap_add_entry(0x47800000, 0x00100000); /* 1mb mmchs2         */
95	arm_devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */
96	arm_devmap_add_entry(0x49000000, 0x00100000); /* 1mb edma3          */
97	arm_devmap_add_entry(0x49800000, 0x00300000); /* 3mb edma3          */
98	arm_devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_FAST devices*/
99#else
100#error "Unknown SoC"
101#endif
102	return (0);
103}
104
105struct arm32_dma_range *
106bus_dma_get_range(void)
107{
108
109	return (NULL);
110}
111
112int
113bus_dma_get_range_nb(void)
114{
115
116	return (0);
117}
118
119void
120cpu_reset()
121{
122	if (ti_cpu_reset)
123		(*ti_cpu_reset)();
124	else
125		printf("no cpu_reset implementation\n");
126	printf("Reset failed!\n");
127	while (1);
128}
129