kernel/2.6.29.6-aldebaran-rt/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, 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
  25 extern asmlinkage void jazz_handle_int(void);
  26
  27 extern void jazz_machine_restart(char *command);
  28
  29 static struct resource jazz_io_resources[] = {
  30         {
  31                 .start  = 0x00,
  32                 .end    = 0x1f,
  33                 .name   = "dma1",
  34                 .flags  = IORESOURCE_BUSY
  35         }, {
  36                 .start  = 0x40,
  37                 .end    = 0x5f,
  38                 .name   = "timer",
  39                 .flags  = IORESOURCE_BUSY
  40         }, {
  41                 .start  = 0x80,
  42                 .end    = 0x8f,
  43                 .name   = "dma page reg",
  44                 .flags  = IORESOURCE_BUSY
  45         }, {
  46                 .start  = 0xc0,
  47                 .end    = 0xdf,
  48                 .name   = "dma2",
  49                 .flags  = IORESOURCE_BUSY
  50         }
  51 };
  52
  53 void __init plat_mem_setup(void)
  54 {
  55         int i;
  56
  57         /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
  58         add_wired_entry(0x02000017, 0x03c00017, 0xe0000000, PM_64K);
  59         /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
  60         add_wired_entry(0x02400017, 0x02440017, 0xe2000000, PM_16M);
  61         /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
  62         add_wired_entry(0x01800017, 0x01000017, 0xe4000000, PM_4M);
  63
  64         set_io_port_base(JAZZ_PORT_BASE);
  65 #ifdef CONFIG_EISA
  66         EISA_bus = 1;
  67 #endif
  68
  69         /* request I/O space for devices used on all i[345]86 PCs */
  70         for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
  71                 request_resource(&ioport_resource, jazz_io_resources + i);
  72
  73         /* The RTC is outside the port address space */
  74
  75         _machine_restart = jazz_machine_restart;
  76
  77 #ifdef CONFIG_VT
  78         screen_info = (struct screen_info) {
  79                 0, 0,           /* orig-x, orig-y */
  80                 0,              /* unused */
  81                 0,              /* orig_video_page */
  82                 0,              /* orig_video_mode */
  83                 160,            /* orig_video_cols */
  84                 0, 0, 0,        /* unused, ega_bx, unused */
  85                 64,             /* orig_video_lines */
  86                 0,              /* orig_video_isVGA */
  87                 16              /* orig_video_points */
  88         };
  89 #endif
  90
  91         add_preferred_console("ttyS", 0, "9600");
  92 }
  93
  94 #ifdef CONFIG_OLIVETTI_M700
  95 #define UART_CLK  1843200
  96 #else
  97 /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know
  98    exactly which ones ... XXX */
  99 #define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */
 100 #endif
 101
 102 #define MEMPORT(_base, _irq)                            \
 103         {                                               \
 104                 .mapbase        = (_base),              \
 105                 .membase        = (void *)(_base),      \
 106                 .irq            = (_irq),               \
 107                 .uartclk        = UART_CLK,             \
 108                 .iotype         = UPIO_MEM,             \
 109                 .flags          = UPF_BOOT_AUTOCONF,    \
 110         }
 111
 112 static struct plat_serial8250_port jazz_serial_data[] = {
 113         MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ),
 114         MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ),
 115         { },
 116 };
 117
 118 static struct platform_device jazz_serial8250_device = {
 119         .name                   = "serial8250",
 120         .id                     = PLAT8250_DEV_PLATFORM,
 121         .dev                    = {
 122                 .platform_data  = jazz_serial_data,
 123         },
 124 };
 125
 126 static struct resource jazz_esp_rsrc[] = {
 127         {
 128                 .start = JAZZ_SCSI_BASE,
 129                 .end   = JAZZ_SCSI_BASE + 31,
 130                 .flags = IORESOURCE_MEM
 131         },
 132         {
 133                 .start = JAZZ_SCSI_DMA,
 134                 .end   = JAZZ_SCSI_DMA,
 135                 .flags = IORESOURCE_MEM
 136         },
 137         {
 138                 .start = JAZZ_SCSI_IRQ,
 139                 .end   = JAZZ_SCSI_IRQ,
 140                 .flags = IORESOURCE_IRQ
 141         }
 142 };
 143
 144 static struct platform_device jazz_esp_pdev = {
 145         .name           = "jazz_esp",
 146         .num_resources  = ARRAY_SIZE(jazz_esp_rsrc),
 147         .resource       = jazz_esp_rsrc
 148 };
 149
 150 static struct resource jazz_sonic_rsrc[] = {
 151         {
 152                 .start = JAZZ_ETHERNET_BASE,
 153                 .end   = JAZZ_ETHERNET_BASE + 0xff,
 154                 .flags = IORESOURCE_MEM
 155         },
 156         {
 157                 .start = JAZZ_ETHERNET_IRQ,
 158                 .end   = JAZZ_ETHERNET_IRQ,
 159                 .flags = IORESOURCE_IRQ
 160         }
 161 };
 162
 163 static struct platform_device jazz_sonic_pdev = {
 164         .name           = "jazzsonic",
 165         .num_resources  = ARRAY_SIZE(jazz_sonic_rsrc),
 166         .resource       = jazz_sonic_rsrc
 167 };
 168
 169 static struct resource jazz_cmos_rsrc[] = {
 170         {
 171                 .start = 0x70,
 172                 .end   = 0x71,
 173                 .flags = IORESOURCE_IO
 174         },
 175         {
 176                 .start = 8,
 177                 .end   = 8,
 178                 .flags = IORESOURCE_IRQ
 179         }
 180 };
 181
 182 static struct platform_device jazz_cmos_pdev = {
 183         .name           = "rtc_cmos",
 184         .num_resources  = ARRAY_SIZE(jazz_cmos_rsrc),
 185         .resource       = jazz_cmos_rsrc
 186 };
 187
 188 static struct platform_device pcspeaker_pdev = {
 189         .name           = "pcspkr",
 190         .id             = -1,
 191 };
 192
 193 static int __init jazz_setup_devinit(void)
 194 {
 195         platform_device_register(&jazz_serial8250_device);
 196         platform_device_register(&jazz_esp_pdev);
 197         platform_device_register(&jazz_sonic_pdev);
 198         platform_device_register(&jazz_cmos_pdev);
 199         platform_device_register(&pcspeaker_pdev);
 200
 201         return 0;
 202 }
 203
 204 device_initcall(jazz_setup_devinit);