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);