2 * Carsten Langgaard, carstenl@mips.com
3 * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
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.
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
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.
18 #include <linux/version.h>
19 #include <linux/init.h>
20 #include <linux/ioport.h>
23 #include <asm/reboot.h>
25 #include <asm/ar7/ar7.h>
26 #include <asm/ar7/gpio.h>
27 #include <asm/ar7/prom.h>
29 static int titan_variant; /*hold the results of the gpio_init_titan_variant() so that it is only called once*/
30 static void ar7_machine_restart(char *command);
31 static void ar7_machine_halt(void);
32 static void ar7_machine_power_off(void);
34 static void ar7_machine_restart(char *command)
36 u32 *softres_reg = (u32 *)ioremap(AR7_REGS_RESET +
37 AR7_RESET_SOFTWARE, 1);
38 writel(1, softres_reg);
41 static void ar7_machine_halt(void)
46 static void ar7_machine_power_off(void)
48 u32 *power_reg = (u32 *)ioremap(AR7_REGS_POWER, 1);
49 u32 power_state = readl(power_reg) | (3 << 30);
50 writel(power_state, power_reg);
54 const char *get_system_type(void)
56 u16 chip_id = ar7_chip_id();
59 return "TI AR7 (TNETD7300)";
61 return "TI AR7 (TNETD7100)";
63 return "TI AR7 (TNETD7200)";
65 titan_variant = ar7_init_titan_variant();
66 switch (titan_variant /*(gpio_get_value_titan(1) >> 12) & 0xf*/) {
68 return "TI AR7 (TNETV1050)";
70 return "TI AR7 (TNETV1055)";
72 return "TI AR7 (TNETV1056)";
74 return "TI AR7 (TNETV1060)";
77 return "TI AR7 (Unknown)";
81 static int __init ar7_init_console(void)
87 * Initializes basic routines and structures pointers, memory size (as
88 * given by the bios and saves the command line.
91 extern void ar7_init_clocks(void);
93 void __init plat_mem_setup(void)
95 unsigned long io_base;
97 _machine_restart = ar7_machine_restart;
98 _machine_halt = ar7_machine_halt;
99 pm_power_off = ar7_machine_power_off;
102 io_base = (unsigned long)ioremap(AR7_REGS_BASE, 0x10000);
103 if (!io_base) panic("Can't remap IO base!\n");
104 set_io_port_base(io_base);
109 ioport_resource.start = 0;
110 ioport_resource.end = ~0;
111 iomem_resource.start = 0;
112 iomem_resource.end = ~0;
114 printk(KERN_INFO "%s, ID: 0x%04x, Revision: 0x%02x\n",
116 ar7_chip_id(), ar7_chip_rev());
119 console_initcall(ar7_init_console);