adds timer unit to ifxmips tree
[librecmc/librecmc.git] / target / linux / ifxmips / files / arch / mips / ifxmips / board.c
1 /*
2  *   arch/mips/ifxmips/board.c
3  *
4  *   This program is free software; you can redistribute it and/or modify
5  *   it under the terms of the GNU General Public License as published by
6  *   the Free Software Foundation; either version 2 of the License, or
7  *   (at your option) any later version.
8  *
9  *   This program is distributed in the hope that it will be useful,
10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  *   GNU General Public License for more details.
13  *
14  *   You should have received a copy of the GNU General Public License
15  *   along with this program; if not, write to the Free Software
16  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
17  *
18  *   Copyright (C) 2007 John Crispin <blogic@openwrt.org> 
19  *
20  */
21
22 #include <linux/autoconf.h>
23 #include <linux/init.h>
24 #include <linux/module.h>
25 #include <linux/types.h>
26 #include <linux/string.h>
27 #include <linux/mtd/physmap.h>
28 #include <linux/kernel.h>
29 #include <linux/reboot.h>
30 #include <linux/platform_device.h>
31 #include <asm/bootinfo.h>
32 #include <asm/reboot.h>
33 #include <asm/time.h>
34 #include <asm/irq.h>
35 #include <asm/io.h>
36 #include <asm/ifxmips/ifxmips.h>
37
38 #define MAX_IFXMIPS_DEVS                7
39
40 #define BOARD_DANUBE                    "Danube"
41 #define BOARD_DANUBE_CHIPID             0x10129083
42
43 #define BOARD_TWINPASS                  "Twinpass"
44 #define BOARD_TWINPASS_CHIPID   0x3012D083
45
46 #define BOARD_DANUBE                    "Danube"
47
48 static unsigned int chiprev;
49
50 static struct platform_device *ifxmips_devs[MAX_IFXMIPS_DEVS];
51
52 static struct platform_device ifxmips_led[] =
53 {
54         {
55                 .id = 0,
56                 .name = "ifxmips_led",
57         },
58 };
59
60 static struct platform_device ifxmips_gpio[] =
61 {
62         {
63                 .id = 0,
64                 .name = "ifxmips_gpio",
65         },
66 };
67
68 static struct platform_device ifxmips_mii[] =
69 {
70         {
71                 .id = 0,
72                 .name = "ifxmips_mii0",
73         },
74 };
75
76 static struct platform_device ifxmips_wdt[] =
77 {
78         {
79                 .id = 0,
80                 .name = "ifxmips_wdt",
81         },
82 };
83
84 static struct physmap_flash_data ifxmips_mtd_data = {
85         .width    = 2,
86 };
87
88 static struct resource ifxmips_mtd_resource = {
89         .start  = IFXMIPS_FLASH_START,
90         .end    = IFXMIPS_FLASH_START + IFXMIPS_FLASH_MAX - 1,
91         .flags  = IORESOURCE_MEM,
92 };
93
94 static struct platform_device ifxmips_mtd[] =
95 {
96         {
97                 .id = 0,
98                 .name = "ifxmips_mtd",
99                 .dev = {
100                         .platform_data = &ifxmips_mtd_data,
101                 },
102                 .num_resources  = 1,
103                 .resource   = &ifxmips_mtd_resource,
104         },
105 };
106
107 #ifdef CONFIG_GPIO_DEVICE
108 static struct resource ifxmips_gpio_dev_resources[] = {
109         {
110                 .name = "gpio",
111                 .flags  = 0,
112                 .start = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 8) | (1 << 9) | (1 << 12),
113                 .end = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 8) | (1 << 9) | (1 << 12),
114         },
115 };
116
117 static struct platform_device ifxmips_gpio_dev[] = {
118         {
119                 .name     = "GPIODEV",
120                 .id     = -1,
121                 .num_resources    = ARRAY_SIZE(ifxmips_gpio_dev_resources),
122                 .resource   = ifxmips_gpio_dev_resources,
123         }
124 };
125 #endif
126
127 const char*
128 get_system_type (void)
129 {
130         chiprev = ifxmips_r32(IFXMIPS_MPS_CHIPID);
131         switch(chiprev)
132         {
133         case BOARD_DANUBE_CHIPID:
134                 return BOARD_DANUBE;
135
136         case BOARD_TWINPASS_CHIPID:
137                 return BOARD_TWINPASS;
138         }
139
140         return BOARD_SYSTEM_TYPE;
141 }
142
143 int __init ifxmips_init_devices(void)
144 {
145         /*
146         *       This is where we detect what chip we are running on
147         *       Currently we support 3 chips
148         *       1.) Danube
149         *       2.) Twinpass (Danube without dsl phy)
150         */
151
152         int dev = 0;
153
154         /* the following devices are generic for all targets */
155         ifxmips_devs[dev++] = ifxmips_led;
156         ifxmips_devs[dev++] = ifxmips_gpio;
157         ifxmips_devs[dev++] = ifxmips_mii;
158         ifxmips_devs[dev++] = ifxmips_mtd;
159         ifxmips_devs[dev++] = ifxmips_wdt;
160 #ifdef CONFIG_GPIO_DEVICE
161         ifxmips_devs[dev++] = ifxmips_gpio_dev;
162 #endif
163         return platform_add_devices(ifxmips_devs, dev);
164 }
165
166 arch_initcall(ifxmips_init_devices);