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, 07 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/irq.h>
  29 #include <asm/jazz.h>
  30 #include <asm/jazzdma.h>
  31 #include <asm/reboot.h>
  32 #include <asm/io.h>
  33 #include <asm/pgtable.h>
  34 #include <asm/time.h>
  35 #include <asm/traps.h>
  36 #include <asm/mc146818-time.h>
  37
  38 extern asmlinkage void jazz_handle_int(void);
  39
  40 extern void jazz_machine_restart(char *command);
  41
  42 static struct resource jazz_io_resources[] = {
  43         {
  44                 .start  = 0x00,
  45                 .end    = 0x1f,
  46                 .name   = "dma1",
  47                 .flags  = IORESOURCE_BUSY
  48         }, {
  49                 .start  = 0x40,
  50                 .end    = 0x5f,
  51                 .name   = "timer",
  52                 .flags  = IORESOURCE_BUSY
  53         }, {
  54                 .start  = 0x80,
  55                 .end    = 0x8f,
  56                 .name   = "dma page reg",
  57                 .flags  = IORESOURCE_BUSY
  58         }, {
  59                 .start  = 0xc0,
  60                 .end    = 0xdf,
  61                 .name   = "dma2",
  62                 .flags  = IORESOURCE_BUSY
  63         }
  64 };
  65
  66 void __init plat_mem_setup(void)
  67 {
  68         int i;
  69
  70         /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
  71         add_wired_entry(0x02000017, 0x03c00017, 0xe0000000, PM_64K);
  72         /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
  73         add_wired_entry(0x02400017, 0x02440017, 0xe2000000, PM_16M);
  74         /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
  75         add_wired_entry(0x01800017, 0x01000017, 0xe4000000, PM_4M);
  76
  77         set_io_port_base(JAZZ_PORT_BASE);
  78 #ifdef CONFIG_EISA
  79         if (mips_machtype == MACH_MIPS_MAGNUM_4000)
  80                 EISA_bus = 1;
  81 #endif
  82         isa_slot_offset = 0xe3000000;
  83
  84         /* request I/O space for devices used on all i[345]86 PCs */
  85         for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
  86                 request_resource(&ioport_resource, jazz_io_resources + i);
  87
  88         /* The RTC is outside the port address space */
  89
  90         _machine_restart = jazz_machine_restart;
  91
  92 #ifdef CONFIG_VT
  93         screen_info = (struct screen_info) {
  94                 0, 0,           /* orig-x, orig-y */
  95                 0,              /* unused */
  96                 0,              /* orig_video_page */
  97                 0,              /* orig_video_mode */
  98                 160,            /* orig_video_cols */
  99                 0, 0, 0,        /* unused, ega_bx, unused */
 100                 64,             /* orig_video_lines */
 101                 0,              /* orig_video_isVGA */
 102                 16              /* orig_video_points */
 103         };
 104 #endif
 105
 106         add_preferred_console("ttyS", 0, "9600");
 107 }
 108
 109 #ifdef CONFIG_OLIVETTI_M700
 110 #define UART_CLK  1843200
 111 #else
 112 /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know
 113    exactly which ones ... XXX */
 114 #define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */
 115 #endif
 116
 117 #define MEMPORT(_base, _irq)                            \
 118         {                                               \
 119                 .mapbase        = (_base),              \
 120                 .membase        = (void *)(_base),      \
 121                 .irq            = (_irq),               \
 122                 .uartclk        = UART_CLK,             \
 123                 .iotype         = UPIO_MEM,             \
 124                 .flags          = UPF_BOOT_AUTOCONF,    \
 125         }
 126
 127 static struct plat_serial8250_port jazz_serial_data[] = {
 128         MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ),
 129         MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ),
 130         { },
 131 };
 132
 133 static struct platform_device jazz_serial8250_device = {
 134         .name                   = "serial8250",
 135         .id                     = PLAT8250_DEV_PLATFORM,
 136         .dev                    = {
 137                 .platform_data  = jazz_serial_data,
 138         },
 139 };
 140
 141 static struct resource jazz_esp_rsrc[] = {
 142         {
 143                 .start = JAZZ_SCSI_BASE,
 144                 .end   = JAZZ_SCSI_BASE + 31,
 145                 .flags = IORESOURCE_MEM
 146         },
 147         {
 148                 .start = JAZZ_SCSI_DMA,
 149                 .end   = JAZZ_SCSI_DMA,
 150                 .flags = IORESOURCE_MEM
 151         },
 152         {
 153                 .start = JAZZ_SCSI_IRQ,
 154                 .end   = JAZZ_SCSI_IRQ,
 155                 .flags = IORESOURCE_IRQ
 156         }
 157 };
 158
 159 static struct platform_device jazz_esp_pdev = {
 160         .name           = "jazz_esp",
 161         .num_resources  = ARRAY_SIZE(jazz_esp_rsrc),
 162         .resource       = jazz_esp_rsrc
 163 };
 164
 165 static struct resource jazz_sonic_rsrc[] = {
 166         {
 167                 .start = JAZZ_ETHERNET_BASE,
 168                 .end   = JAZZ_ETHERNET_BASE + 0xff,
 169                 .flags = IORESOURCE_MEM
 170         },
 171         {
 172                 .start = JAZZ_ETHERNET_IRQ,
 173                 .end   = JAZZ_ETHERNET_IRQ,
 174                 .flags = IORESOURCE_IRQ
 175         }
 176 };
 177
 178 static struct platform_device jazz_sonic_pdev = {
 179         .name           = "jazzsonic",
 180         .num_resources  = ARRAY_SIZE(jazz_sonic_rsrc),
 181         .resource       = jazz_sonic_rsrc
 182 };
 183
 184 static struct resource jazz_cmos_rsrc[] = {
 185         {
 186                 .start = 0x70,
 187                 .end   = 0x71,
 188                 .flags = IORESOURCE_IO
 189         },
 190         {
 191                 .start = 8,
 192                 .end   = 8,
 193                 .flags = IORESOURCE_IRQ
 194         }
 195 };
 196
 197 static struct platform_device jazz_cmos_pdev = {
 198         .name           = "rtc_cmos",
 199         .num_resources  = ARRAY_SIZE(jazz_cmos_rsrc),
 200         .resource       = jazz_cmos_rsrc
 201 };
 202
 203 static int __init jazz_setup_devinit(void)
 204 {
 205         platform_device_register(&jazz_serial8250_device);
 206         platform_device_register(&jazz_esp_pdev);
 207         platform_device_register(&jazz_sonic_pdev);
 208         platform_device_register(&jazz_cmos_pdev);
 209         return 0;
 210 }
 211
 212 device_initcall(jazz_setup_devinit);