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