Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw
[linux-2.6] / arch / mips / jazz / setup.c
1 /*
2  * Setup pointers to hardware-dependent routines.
3  *
4  * This file is subject to the terms and conditions of the GNU General Public
5  * License.  See the file "COPYING" in the main directory of this archive
6  * for more details.
7  *
8  * Copyright (C) 1996, 1997, 1998, 2001 by Ralf Baechle
9  * Copyright (C) 2001 MIPS Technologies, Inc.
10  * Copyright (C) 2007 by Thomas Bogendoerfer
11  */
12 #include <linux/eisa.h>
13 #include <linux/hdreg.h>
14 #include <linux/init.h>
15 #include <linux/ioport.h>
16 #include <linux/sched.h>
17 #include <linux/interrupt.h>
18 #include <linux/mm.h>
19 #include <linux/console.h>
20 #include <linux/fb.h>
21 #include <linux/ide.h>
22 #include <linux/pm.h>
23 #include <linux/screen_info.h>
24 #include <linux/platform_device.h>
25 #include <linux/serial_8250.h>
26
27 #include <asm/bootinfo.h>
28 #include <asm/i8253.h>
29 #include <asm/irq.h>
30 #include <asm/jazz.h>
31 #include <asm/jazzdma.h>
32 #include <asm/reboot.h>
33 #include <asm/io.h>
34 #include <asm/pgtable.h>
35 #include <asm/time.h>
36 #include <asm/traps.h>
37 #include <asm/mc146818-time.h>
38
39 extern asmlinkage void jazz_handle_int(void);
40
41 extern void jazz_machine_restart(char *command);
42
43 static struct resource jazz_io_resources[] = {
44         {
45                 .start  = 0x00,
46                 .end    = 0x1f,
47                 .name   = "dma1",
48                 .flags  = IORESOURCE_BUSY
49         }, {
50                 .start  = 0x40,
51                 .end    = 0x5f,
52                 .name   = "timer",
53                 .flags  = IORESOURCE_BUSY
54         }, {
55                 .start  = 0x80,
56                 .end    = 0x8f,
57                 .name   = "dma page reg",
58                 .flags  = IORESOURCE_BUSY
59         }, {
60                 .start  = 0xc0,
61                 .end    = 0xdf,
62                 .name   = "dma2",
63                 .flags  = IORESOURCE_BUSY
64         }
65 };
66
67 void __init plat_time_init(void)
68 {
69         setup_pit_timer();
70 }
71
72 void __init plat_mem_setup(void)
73 {
74         int i;
75
76         /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
77         add_wired_entry(0x02000017, 0x03c00017, 0xe0000000, PM_64K);
78         /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
79         add_wired_entry(0x02400017, 0x02440017, 0xe2000000, PM_16M);
80         /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
81         add_wired_entry(0x01800017, 0x01000017, 0xe4000000, PM_4M);
82
83         set_io_port_base(JAZZ_PORT_BASE);
84 #ifdef CONFIG_EISA
85         if (mips_machtype == MACH_MIPS_MAGNUM_4000)
86                 EISA_bus = 1;
87 #endif
88         isa_slot_offset = 0xe3000000;
89
90         /* request I/O space for devices used on all i[345]86 PCs */
91         for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
92                 request_resource(&ioport_resource, jazz_io_resources + i);
93
94         /* The RTC is outside the port address space */
95
96         _machine_restart = jazz_machine_restart;
97
98 #ifdef CONFIG_VT
99         screen_info = (struct screen_info) {
100                 0, 0,           /* orig-x, orig-y */
101                 0,              /* unused */
102                 0,              /* orig_video_page */
103                 0,              /* orig_video_mode */
104                 160,            /* orig_video_cols */
105                 0, 0, 0,        /* unused, ega_bx, unused */
106                 64,             /* orig_video_lines */
107                 0,              /* orig_video_isVGA */
108                 16              /* orig_video_points */
109         };
110 #endif
111
112         add_preferred_console("ttyS", 0, "9600");
113 }
114
115 #ifdef CONFIG_OLIVETTI_M700
116 #define UART_CLK  1843200
117 #else
118 /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know
119    exactly which ones ... XXX */
120 #define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */
121 #endif
122
123 #define MEMPORT(_base, _irq)                            \
124         {                                               \
125                 .mapbase        = (_base),              \
126                 .membase        = (void *)(_base),      \
127                 .irq            = (_irq),               \
128                 .uartclk        = UART_CLK,             \
129                 .iotype         = UPIO_MEM,             \
130                 .flags          = UPF_BOOT_AUTOCONF,    \
131         }
132
133 static struct plat_serial8250_port jazz_serial_data[] = {
134         MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ),
135         MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ),
136         { },
137 };
138
139 static struct platform_device jazz_serial8250_device = {
140         .name                   = "serial8250",
141         .id                     = PLAT8250_DEV_PLATFORM,
142         .dev                    = {
143                 .platform_data  = jazz_serial_data,
144         },
145 };
146
147 static struct resource jazz_esp_rsrc[] = {
148         {
149                 .start = JAZZ_SCSI_BASE,
150                 .end   = JAZZ_SCSI_BASE + 31,
151                 .flags = IORESOURCE_MEM
152         },
153         {
154                 .start = JAZZ_SCSI_DMA,
155                 .end   = JAZZ_SCSI_DMA,
156                 .flags = IORESOURCE_MEM
157         },
158         {
159                 .start = JAZZ_SCSI_IRQ,
160                 .end   = JAZZ_SCSI_IRQ,
161                 .flags = IORESOURCE_IRQ
162         }
163 };
164
165 static struct platform_device jazz_esp_pdev = {
166         .name           = "jazz_esp",
167         .num_resources  = ARRAY_SIZE(jazz_esp_rsrc),
168         .resource       = jazz_esp_rsrc
169 };
170
171 static struct resource jazz_sonic_rsrc[] = {
172         {
173                 .start = JAZZ_ETHERNET_BASE,
174                 .end   = JAZZ_ETHERNET_BASE + 0xff,
175                 .flags = IORESOURCE_MEM
176         },
177         {
178                 .start = JAZZ_ETHERNET_IRQ,
179                 .end   = JAZZ_ETHERNET_IRQ,
180                 .flags = IORESOURCE_IRQ
181         }
182 };
183
184 static struct platform_device jazz_sonic_pdev = {
185         .name           = "jazzsonic",
186         .num_resources  = ARRAY_SIZE(jazz_sonic_rsrc),
187         .resource       = jazz_sonic_rsrc
188 };
189
190 static struct resource jazz_cmos_rsrc[] = {
191         {
192                 .start = 0x70,
193                 .end   = 0x71,
194                 .flags = IORESOURCE_IO
195         },
196         {
197                 .start = 8,
198                 .end   = 8,
199                 .flags = IORESOURCE_IRQ
200         }
201 };
202
203 static struct platform_device jazz_cmos_pdev = {
204         .name           = "rtc_cmos",
205         .num_resources  = ARRAY_SIZE(jazz_cmos_rsrc),
206         .resource       = jazz_cmos_rsrc
207 };
208
209 static int __init jazz_setup_devinit(void)
210 {
211         platform_device_register(&jazz_serial8250_device);
212         platform_device_register(&jazz_esp_pdev);
213         platform_device_register(&jazz_sonic_pdev);
214         platform_device_register(&jazz_cmos_pdev);
215         return 0;
216 }
217
218 device_initcall(jazz_setup_devinit);