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Linux/arch/mips/jazz/setup.c

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  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, 07, 08 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/init.h>
 14 #include <linux/ioport.h>
 15 #include <linux/console.h>
 16 #include <linux/screen_info.h>
 17 #include <linux/platform_device.h>
 18 #include <linux/serial_8250.h>
 19 
 20 #include <asm/jazz.h>
 21 #include <asm/jazzdma.h>
 22 #include <asm/reboot.h>
 23 #include <asm/pgtable.h>
 24 #include <asm/tlbmisc.h>
 25 
 26 extern asmlinkage void jazz_handle_int(void);
 27 
 28 extern void jazz_machine_restart(char *command);
 29 
 30 static struct resource jazz_io_resources[] = {
 31         {
 32                 .start  = 0x00,
 33                 .end    = 0x1f,
 34                 .name   = "dma1",
 35                 .flags  = IORESOURCE_BUSY
 36         }, {
 37                 .start  = 0x40,
 38                 .end    = 0x5f,
 39                 .name   = "timer",
 40                 .flags  = IORESOURCE_BUSY
 41         }, {
 42                 .start  = 0x80,
 43                 .end    = 0x8f,
 44                 .name   = "dma page reg",
 45                 .flags  = IORESOURCE_BUSY
 46         }, {
 47                 .start  = 0xc0,
 48                 .end    = 0xdf,
 49                 .name   = "dma2",
 50                 .flags  = IORESOURCE_BUSY
 51         }
 52 };
 53 
 54 void __init plat_mem_setup(void)
 55 {
 56         int i;
 57 
 58         /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
 59         add_wired_entry(0x02000017, 0x03c00017, 0xe0000000, PM_64K);
 60         /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
 61         add_wired_entry(0x02400017, 0x02440017, 0xe2000000, PM_16M);
 62         /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
 63         add_wired_entry(0x01800017, 0x01000017, 0xe4000000, PM_4M);
 64 
 65         set_io_port_base(JAZZ_PORT_BASE);
 66 #ifdef CONFIG_EISA
 67         EISA_bus = 1;
 68 #endif
 69 
 70         /* request I/O space for devices used on all i[345]86 PCs */
 71         for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
 72                 request_resource(&ioport_resource, jazz_io_resources + i);
 73 
 74         /* The RTC is outside the port address space */
 75 
 76         _machine_restart = jazz_machine_restart;
 77 
 78 #ifdef CONFIG_VT
 79         screen_info = (struct screen_info) {
 80                 .orig_video_cols        = 160,
 81                 .orig_video_lines       = 64,
 82                 .orig_video_points      = 16,
 83         };
 84 #endif
 85 
 86         add_preferred_console("ttyS", 0, "9600");
 87 }
 88 
 89 #ifdef CONFIG_OLIVETTI_M700
 90 #define UART_CLK  1843200
 91 #else
 92 /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know
 93    exactly which ones ... XXX */
 94 #define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */
 95 #endif
 96 
 97 #define MEMPORT(_base, _irq)                            \
 98         {                                               \
 99                 .mapbase        = (_base),              \
100                 .membase        = (void *)(_base),      \
101                 .irq            = (_irq),               \
102                 .uartclk        = UART_CLK,             \
103                 .iotype         = UPIO_MEM,             \
104                 .flags          = UPF_BOOT_AUTOCONF,    \
105         }
106 
107 static struct plat_serial8250_port jazz_serial_data[] = {
108         MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ),
109         MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ),
110         { },
111 };
112 
113 static struct platform_device jazz_serial8250_device = {
114         .name                   = "serial8250",
115         .id                     = PLAT8250_DEV_PLATFORM,
116         .dev                    = {
117                 .platform_data  = jazz_serial_data,
118         },
119 };
120 
121 static struct resource jazz_esp_rsrc[] = {
122         {
123                 .start = JAZZ_SCSI_BASE,
124                 .end   = JAZZ_SCSI_BASE + 31,
125                 .flags = IORESOURCE_MEM
126         },
127         {
128                 .start = JAZZ_SCSI_DMA,
129                 .end   = JAZZ_SCSI_DMA,
130                 .flags = IORESOURCE_MEM
131         },
132         {
133                 .start = JAZZ_SCSI_IRQ,
134                 .end   = JAZZ_SCSI_IRQ,
135                 .flags = IORESOURCE_IRQ
136         }
137 };
138 
139 static struct platform_device jazz_esp_pdev = {
140         .name           = "jazz_esp",
141         .num_resources  = ARRAY_SIZE(jazz_esp_rsrc),
142         .resource       = jazz_esp_rsrc
143 };
144 
145 static struct resource jazz_sonic_rsrc[] = {
146         {
147                 .start = JAZZ_ETHERNET_BASE,
148                 .end   = JAZZ_ETHERNET_BASE + 0xff,
149                 .flags = IORESOURCE_MEM
150         },
151         {
152                 .start = JAZZ_ETHERNET_IRQ,
153                 .end   = JAZZ_ETHERNET_IRQ,
154                 .flags = IORESOURCE_IRQ
155         }
156 };
157 
158 static struct platform_device jazz_sonic_pdev = {
159         .name           = "jazzsonic",
160         .num_resources  = ARRAY_SIZE(jazz_sonic_rsrc),
161         .resource       = jazz_sonic_rsrc
162 };
163 
164 static struct resource jazz_cmos_rsrc[] = {
165         {
166                 .start = 0x70,
167                 .end   = 0x71,
168                 .flags = IORESOURCE_IO
169         },
170         {
171                 .start = 8,
172                 .end   = 8,
173                 .flags = IORESOURCE_IRQ
174         }
175 };
176 
177 static struct platform_device jazz_cmos_pdev = {
178         .name           = "rtc_cmos",
179         .num_resources  = ARRAY_SIZE(jazz_cmos_rsrc),
180         .resource       = jazz_cmos_rsrc
181 };
182 
183 static struct platform_device pcspeaker_pdev = {
184         .name           = "pcspkr",
185         .id             = -1,
186 };
187 
188 static int __init jazz_setup_devinit(void)
189 {
190         platform_device_register(&jazz_serial8250_device);
191         platform_device_register(&jazz_esp_pdev);
192         platform_device_register(&jazz_sonic_pdev);
193         platform_device_register(&jazz_cmos_pdev);
194         platform_device_register(&pcspeaker_pdev);
195 
196         return 0;
197 }
198 
199 device_initcall(jazz_setup_devinit);
200 

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