rk30xx_machdep.c revision 256949 
1/*-
2 * Copyright (c) 2013 Ganbold Tsagaankhuu <ganbold@gmail.com>
3 * All rights reserved.
4 *
5 * This code is derived from software written for Brini by Mark Brinicombe
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * from: FreeBSD: //depot/projects/arm/src/sys/arm/ti/ti_machdep.c
29 */
30
31#include "opt_ddb.h"
32#include "opt_platform.h"
33
34#include <sys/cdefs.h>
35__FBSDID("$FreeBSD: head/sys/arm/rockchip/rk30xx_machdep.c 256949 2013-10-23 00:39:43Z ganbold $");
36
37#define _ARM32_BUS_DMA_PRIVATE
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/bus.h>
41
42#include <vm/vm.h>
43#include <vm/pmap.h>
44
45#include <machine/armreg.h>
46#include <machine/bus.h>
47#include <machine/frame.h> /* For trapframe_t, used in <machine/machdep.h> */
48#include <machine/machdep.h>
49#include <machine/pmap.h>
50
51#include <dev/fdt/fdt_common.h>
52
53/* Start of address space used for bootstrap map */
54#define DEVMAP_BOOTSTRAP_MAP_START	0xF0000000
55
56vm_offset_t
57initarm_lastaddr(void)
58{
59
60	return (DEVMAP_BOOTSTRAP_MAP_START - ARM_NOCACHE_KVA_SIZE);
61}
62
63void
64initarm_gpio_init(void)
65{
66}
67
68void
69initarm_late_init(void)
70{
71
72	/* Enable cache */
73	cpufunc_control(CPU_CONTROL_DC_ENABLE|CPU_CONTROL_IC_ENABLE,
74	    CPU_CONTROL_DC_ENABLE|CPU_CONTROL_IC_ENABLE);
75}
76
77#define FDT_DEVMAP_MAX		(1 + 2 + 1 + 1)
78static struct pmap_devmap fdt_devmap[FDT_DEVMAP_MAX] = {
79	{ 0, 0, 0, 0, 0, }
80};
81
82/*
83 * Construct pmap_devmap[] with DT-derived config data.
84 */
85int
86platform_devmap_init(void)
87{
88	int i = 0;
89
90	fdt_devmap[i].pd_va = 0xF0000000;
91	fdt_devmap[i].pd_pa = 0x20000000;
92	fdt_devmap[i].pd_size = 0x100000;
93	fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE;
94	fdt_devmap[i].pd_cache = PTE_DEVICE;
95	i++;
96
97	pmap_devmap_bootstrap_table = &fdt_devmap[0];
98
99	return (0);
100}
101
102struct arm32_dma_range *
103bus_dma_get_range(void)
104{
105
106	return (NULL);
107}
108
109int
110bus_dma_get_range_nb(void)
111{
112
113	return (0);
114}
115
116void
117cpu_reset()
118{
119
120	printf("No cpu_reset implementation!\n");
121	while (1);
122}
123