1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
/*
* BRIEF MODULE DESCRIPTION
* setup.c - board dependent boot routines
*
* Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/bootmem.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <asm/bootinfo.h>
#include <asm/mc146818-time.h>
#include <asm/time.h>
#include <asm/wbflush.h>
#include <asm/mach-lemote/pci.h>
#ifdef CONFIG_VT
#include <linux/console.h>
#include <linux/screen_info.h>
#endif
unsigned long cpu_clock_freq;
unsigned long bus_clock;
unsigned int memsize;
unsigned int highmemsize = 0;
void __init plat_time_init(void)
{
/* setup mips r4k timer */
mips_hpt_frequency = cpu_clock_freq / 2;
}
unsigned long read_persistent_clock(void)
{
return mc146818_get_cmos_time();
}
void (*__wbflush)(void);
EXPORT_SYMBOL(__wbflush);
static void wbflush_loongson2e(void)
{
asm(".set\tpush\n\t"
".set\tnoreorder\n\t"
".set mips3\n\t"
"sync\n\t"
"nop\n\t"
".set\tpop\n\t"
".set mips0\n\t");
}
void __init plat_mem_setup(void)
{
set_io_port_base((unsigned long)ioremap(LOONGSON2E_IO_PORT_BASE,
IO_SPACE_LIMIT - LOONGSON2E_PCI_IO_START + 1));
__wbflush = wbflush_loongson2e;
add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM);
#ifdef CONFIG_64BIT
if (highmemsize > 0) {
add_memory_region(0x20000000, highmemsize << 20, BOOT_MEM_RAM);
}
#endif
#ifdef CONFIG_VT
#if defined(CONFIG_VGA_CONSOLE)
conswitchp = &vga_con;
screen_info = (struct screen_info) {
0, 25, /* orig-x, orig-y */
0, /* unused */
0, /* orig-video-page */
0, /* orig-video-mode */
80, /* orig-video-cols */
0, 0, 0, /* ega_ax, ega_bx, ega_cx */
25, /* orig-video-lines */
VIDEO_TYPE_VGAC, /* orig-video-isVGA */
16 /* orig-video-points */
};
#elif defined(CONFIG_DUMMY_CONSOLE)
conswitchp = &dummy_con;
#endif
#endif
}
|
