7930e90b24c0c8514a29d47e7131fbcc13afc919
[openwrt/svn-archive/archive.git] / target / linux / ar7-2.6 / files / arch / mips / ar7 / setup.c
1 /*
2 * $Id$
3 *
4 * Copyright (C) 2006, 2007 OpenWrt.org
5 *
6 * Carsten Langgaard, carstenl@mips.com
7 * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
8 *
9 * This program is free software; you can distribute it and/or modify it
10 * under the terms of the GNU General Public License (Version 2) as
11 * published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 * for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
21 */
22 #include <linux/init.h>
23 #include <linux/sched.h>
24 #include <linux/ioport.h>
25 #include <linux/pci.h>
26 #include <linux/tty.h>
27 #include <linux/pm.h>
28 #include <linux/serial_8250.h>
29 #include <linux/serial_core.h>
30 #include <linux/serial.h>
31 #include <linux/serial_reg.h>
32
33 #include <asm/cpu.h>
34 #include <asm/irq.h>
35 #include <asm/mips-boards/generic.h>
36 #include <asm/mips-boards/prom.h>
37 #include <asm/dma.h>
38 #include <asm/time.h>
39 #include <asm/traps.h>
40 #include <asm/io.h>
41 #include <asm/reboot.h>
42 #include <asm/gdb-stub.h>
43 #include <asm/ar7/ar7.h>
44
45 extern void ar7_time_init(void);
46 static void ar7_machine_restart(char *command);
47 static void ar7_machine_halt(void);
48 static void ar7_machine_power_off(void);
49
50 static void ar7_machine_restart(char *command)
51 {
52 volatile u32 *softres_reg = (u32 *)ioremap(AR7_REGS_RESET +
53 AR7_RESET_SOFTWARE, 1);
54 *softres_reg = 1;
55 }
56
57 static void ar7_machine_halt(void)
58 {
59 while (1);
60 }
61
62 static void ar7_machine_power_off(void)
63 {
64 volatile u32 *power_reg = (u32 *)ioremap(AR7_REGS_POWER, 1);
65 u32 power_state = *power_reg | (3 << 30);
66 *power_reg = power_state;
67 ar7_machine_halt();
68 }
69
70 const char *get_system_type(void)
71 {
72 u16 chip_id = ar7_chip_id();
73 switch (chip_id) {
74 case AR7_CHIP_7300:
75 return "TI AR7 (TNETD7300)";
76 case AR7_CHIP_7100:
77 return "TI AR7 (TNETD7100)";
78 case AR7_CHIP_7200:
79 return "TI AR7 (TNETD7200)";
80 default:
81 return "TI AR7 (Unknown)";
82 }
83 }
84
85 static int __init ar7_init_console(void)
86 {
87 return 0;
88 }
89
90 /*
91 * Initializes basic routines and structures pointers, memory size (as
92 * given by the bios and saves the command line.
93 */
94
95 extern void ar7_init_clocks(void);
96
97 void __init plat_mem_setup(void)
98 {
99 unsigned long io_base;
100
101 _machine_restart = ar7_machine_restart;
102 _machine_halt = ar7_machine_halt;
103 pm_power_off = ar7_machine_power_off;
104 board_time_init = ar7_time_init;
105 panic_timeout = 3;
106
107 io_base = (unsigned long)ioremap(AR7_REGS_BASE, 0x10000);
108 if (!io_base) panic("Can't remap IO base!\n");
109 set_io_port_base(io_base);
110
111 prom_meminit();
112 ar7_init_clocks();
113
114 ioport_resource.start = 0;
115 ioport_resource.end = ~0;
116 iomem_resource.start = 0;
117 iomem_resource.end = ~0;
118 }
119
120 console_initcall(ar7_init_console);