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7ca5dc14 FF |
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 | */ | |
7ca5dc14 FF |
18 | #include <linux/init.h> |
19 | #include <linux/ioport.h> | |
20 | #include <linux/pm.h> | |
21 | #include <linux/time.h> | |
22 | ||
23 | #include <asm/reboot.h> | |
24 | #include <asm/mach-ar7/ar7.h> | |
25 | #include <asm/mach-ar7/prom.h> | |
238dd317 | 26 | #include <asm/mach-ar7/gpio.h> |
7ca5dc14 FF |
27 | |
28 | static void ar7_machine_restart(char *command) | |
29 | { | |
4d1da8c2 AC |
30 | u32 *softres_reg = ioremap(AR7_REGS_RESET + AR7_RESET_SOFTWARE, 1); |
31 | ||
7ca5dc14 FF |
32 | writel(1, softres_reg); |
33 | } | |
34 | ||
35 | static void ar7_machine_halt(void) | |
36 | { | |
37 | while (1) | |
38 | ; | |
39 | } | |
40 | ||
41 | static 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); | |
4d1da8c2 | 45 | |
7ca5dc14 FF |
46 | writel(power_state, power_reg); |
47 | ar7_machine_halt(); | |
48 | } | |
49 | ||
50 | const char *get_system_type(void) | |
51 | { | |
52 | u16 chip_id = ar7_chip_id(); | |
238dd317 FF |
53 | u16 titan_variant_id = titan_chip_id(); |
54 | ||
7ca5dc14 | 55 | switch (chip_id) { |
7ca5dc14 FF |
56 | case AR7_CHIP_7100: |
57 | return "TI AR7 (TNETD7100)"; | |
58 | case AR7_CHIP_7200: | |
59 | return "TI AR7 (TNETD7200)"; | |
4d1da8c2 AC |
60 | case AR7_CHIP_7300: |
61 | return "TI AR7 (TNETD7300)"; | |
238dd317 FF |
62 | case AR7_CHIP_TITAN: |
63 | switch (titan_variant_id) { | |
64 | case TITAN_CHIP_1050: | |
65 | return "TI AR7 (TNETV1050)"; | |
66 | case TITAN_CHIP_1055: | |
67 | return "TI AR7 (TNETV1055)"; | |
68 | case TITAN_CHIP_1056: | |
69 | return "TI AR7 (TNETV1056)"; | |
70 | case TITAN_CHIP_1060: | |
71 | return "TI AR7 (TNETV1060)"; | |
72 | } | |
7ca5dc14 | 73 | default: |
4d1da8c2 | 74 | return "TI AR7 (unknown)"; |
7ca5dc14 FF |
75 | } |
76 | } | |
77 | ||
78 | static int __init ar7_init_console(void) | |
79 | { | |
80 | return 0; | |
81 | } | |
82 | console_initcall(ar7_init_console); | |
83 | ||
84 | /* | |
85 | * Initializes basic routines and structures pointers, memory size (as | |
86 | * given by the bios and saves the command line. | |
87 | */ | |
7ca5dc14 FF |
88 | void __init plat_mem_setup(void) |
89 | { | |
90 | unsigned long io_base; | |
91 | ||
92 | _machine_restart = ar7_machine_restart; | |
93 | _machine_halt = ar7_machine_halt; | |
94 | pm_power_off = ar7_machine_power_off; | |
7ca5dc14 FF |
95 | |
96 | io_base = (unsigned long)ioremap(AR7_REGS_BASE, 0x10000); | |
97 | if (!io_base) | |
ab75dc02 | 98 | panic("Can't remap IO base!"); |
7ca5dc14 FF |
99 | set_io_port_base(io_base); |
100 | ||
101 | prom_meminit(); | |
102 | ||
103 | printk(KERN_INFO "%s, ID: 0x%04x, Revision: 0x%02x\n", | |
4d1da8c2 | 104 | get_system_type(), ar7_chip_id(), ar7_chip_rev()); |
7ca5dc14 | 105 | } |