2 * BRIEF MODULE DESCRIPTION
3 * setup.c - board dependent boot routines
5 * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
6 * Author: Fuxin Zhang, zhangfx@lemote.com
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
16 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
19 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 * You should have received a copy of the GNU General Public License along
25 * with this program; if not, write to the Free Software Foundation, Inc.,
26 * 675 Mass Ave, Cambridge, MA 02139, USA.
29 #include <linux/bootmem.h>
30 #include <linux/init.h>
32 #include <linux/ioport.h>
33 #include <linux/interrupt.h>
34 #include <linux/irq.h>
35 #include <linux/kernel.h>
36 #include <linux/mc146818rtc.h>
38 #include <linux/module.h>
39 #include <linux/pci.h>
40 #include <linux/tty.h>
41 #include <linux/types.h>
43 #include <asm/bootinfo.h>
44 #include <asm/mc146818-time.h>
46 #include <asm/wbflush.h>
49 #include <linux/console.h>
50 #include <linux/screen_info.h>
53 extern void mips_reboot_setup(void);
56 #define PTR_PAD(p) ((0xffffffff00000000)|((unsigned long long)(p)))
58 #define PTR_PAD(p) (p)
61 unsigned long cpu_clock;
62 unsigned long bus_clock;
64 unsigned int highmemsize = 0;
66 void __init plat_timer_setup(struct irqaction *irq)
68 setup_irq(MIPS_CPU_IRQ_BASE + 7, irq);
71 static void __init loongson2e_time_init(void)
73 /* setup mips r4k timer */
74 mips_hpt_frequency = cpu_clock / 2;
77 static unsigned long __init mips_rtc_get_time(void)
79 return mc146818_get_cmos_time();
82 void (*__wbflush)(void);
83 EXPORT_SYMBOL(__wbflush);
85 static void wbflush_loongson2e(void)
96 void __init plat_mem_setup(void)
98 set_io_port_base(PTR_PAD(0xbfd00000));
102 board_time_init = loongson2e_time_init;
103 rtc_mips_get_time = mips_rtc_get_time;
105 __wbflush = wbflush_loongson2e;
107 add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM);
109 if (highmemsize > 0) {
110 add_memory_region(0x20000000, highmemsize << 20, BOOT_MEM_RAM);
115 #if defined(CONFIG_VGA_CONSOLE)
116 conswitchp = &vga_con;
118 screen_info = (struct screen_info) {
119 0, 25, /* orig-x, orig-y */
121 0, /* orig-video-page */
122 0, /* orig-video-mode */
123 80, /* orig-video-cols */
124 0, 0, 0, /* ega_ax, ega_bx, ega_cx */
125 25, /* orig-video-lines */
126 VIDEO_TYPE_VGAC, /* orig-video-isVGA */
127 16 /* orig-video-points */
129 #elif defined(CONFIG_DUMMY_CONSOLE)
130 conswitchp = &dummy_con;