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-rw-r--r--arch/mips/ar7/setup.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/arch/mips/ar7/setup.c b/arch/mips/ar7/setup.c
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1/*
2 * Carsten Langgaard, carstenl@mips.com
3 * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
4 *
5 * This program is free software; you can distribute it and/or modify it
6 * under the terms of the GNU General Public License (Version 2) as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
17 */
18#include <linux/version.h>
19#include <linux/init.h>
20#include <linux/ioport.h>
21#include <linux/pm.h>
22#include <linux/time.h>
23
24#include <asm/reboot.h>
25#include <asm/mach-ar7/ar7.h>
26#include <asm/mach-ar7/prom.h>
27
28static void ar7_machine_restart(char *command)
29{
30 u32 *softres_reg = ioremap(AR7_REGS_RESET +
31 AR7_RESET_SOFTWARE, 1);
32 writel(1, softres_reg);
33}
34
35static void ar7_machine_halt(void)
36{
37 while (1)
38 ;
39}
40
41static void ar7_machine_power_off(void)
42{
43 u32 *power_reg = (u32 *)ioremap(AR7_REGS_POWER, 1);
44 u32 power_state = readl(power_reg) | (3 << 30);
45 writel(power_state, power_reg);
46 ar7_machine_halt();
47}
48
49const char *get_system_type(void)
50{
51 u16 chip_id = ar7_chip_id();
52 switch (chip_id) {
53 case AR7_CHIP_7300:
54 return "TI AR7 (TNETD7300)";
55 case AR7_CHIP_7100:
56 return "TI AR7 (TNETD7100)";
57 case AR7_CHIP_7200:
58 return "TI AR7 (TNETD7200)";
59 default:
60 return "TI AR7 (Unknown)";
61 }
62}
63
64static int __init ar7_init_console(void)
65{
66 return 0;
67}
68console_initcall(ar7_init_console);
69
70/*
71 * Initializes basic routines and structures pointers, memory size (as
72 * given by the bios and saves the command line.
73 */
74
75void __init plat_mem_setup(void)
76{
77 unsigned long io_base;
78
79 _machine_restart = ar7_machine_restart;
80 _machine_halt = ar7_machine_halt;
81 pm_power_off = ar7_machine_power_off;
82 panic_timeout = 3;
83
84 io_base = (unsigned long)ioremap(AR7_REGS_BASE, 0x10000);
85 if (!io_base)
86 panic("Can't remap IO base!\n");
87 set_io_port_base(io_base);
88
89 prom_meminit();
90
91 printk(KERN_INFO "%s, ID: 0x%04x, Revision: 0x%02x\n",
92 get_system_type(),
93 ar7_chip_id(), ar7_chip_rev());
94}