release/src-rt-6.x.4708/linux/linux-2.6.36/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                 .orig_video_cols        = 160,
  80                 .orig_video_lines       = 64,
  81                 .orig_video_points      = 16,
  82         };
  83 #endif
  84
  85         add_preferred_console("ttyS", 0, "9600");
  86 }
  87
  88 #ifdef CONFIG_OLIVETTI_M700
  89 #define UART_CLK  1843200
  90 #else
  91 #define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */
  92 #endif
  93
  94 #define MEMPORT(_base, _irq)                            \
  95         {                                               \
  96                 .mapbase        = (_base),              \
  97                 .membase        = (void *)(_base),      \
  98                 .irq            = (_irq),               \
  99                 .uartclk        = UART_CLK,             \
 100                 .iotype         = UPIO_MEM,             \
 101                 .flags          = UPF_BOOT_AUTOCONF,    \
 102         }
 103
 104 static struct plat_serial8250_port jazz_serial_data[] = {
 105         MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ),
 106         MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ),
 107         { },
 108 };
 109
 110 static struct platform_device jazz_serial8250_device = {
 111         .name                   = "serial8250",
 112         .id                     = PLAT8250_DEV_PLATFORM,
 113         .dev                    = {
 114                 .platform_data  = jazz_serial_data,
 115         },
 116 };
 117
 118 static struct resource jazz_esp_rsrc[] = {
 119         {
 120                 .start = JAZZ_SCSI_BASE,
 121                 .end   = JAZZ_SCSI_BASE + 31,
 122                 .flags = IORESOURCE_MEM
 123         },
 124         {
 125                 .start = JAZZ_SCSI_DMA,
 126                 .end   = JAZZ_SCSI_DMA,
 127                 .flags = IORESOURCE_MEM
 128         },
 129         {
 130                 .start = JAZZ_SCSI_IRQ,
 131                 .end   = JAZZ_SCSI_IRQ,
 132                 .flags = IORESOURCE_IRQ
 133         }
 134 };
 135
 136 static struct platform_device jazz_esp_pdev = {
 137         .name           = "jazz_esp",
 138         .num_resources  = ARRAY_SIZE(jazz_esp_rsrc),
 139         .resource       = jazz_esp_rsrc
 140 };
 141
 142 static struct resource jazz_sonic_rsrc[] = {
 143         {
 144                 .start = JAZZ_ETHERNET_BASE,
 145                 .end   = JAZZ_ETHERNET_BASE + 0xff,
 146                 .flags = IORESOURCE_MEM
 147         },
 148         {
 149                 .start = JAZZ_ETHERNET_IRQ,
 150                 .end   = JAZZ_ETHERNET_IRQ,
 151                 .flags = IORESOURCE_IRQ
 152         }
 153 };
 154
 155 static struct platform_device jazz_sonic_pdev = {
 156         .name           = "jazzsonic",
 157         .num_resources  = ARRAY_SIZE(jazz_sonic_rsrc),
 158         .resource       = jazz_sonic_rsrc
 159 };
 160
 161 static struct resource jazz_cmos_rsrc[] = {
 162         {
 163                 .start = 0x70,
 164                 .end   = 0x71,
 165                 .flags = IORESOURCE_IO
 166         },
 167         {
 168                 .start = 8,
 169                 .end   = 8,
 170                 .flags = IORESOURCE_IRQ
 171         }
 172 };
 173
 174 static struct platform_device jazz_cmos_pdev = {
 175         .name           = "rtc_cmos",
 176         .num_resources  = ARRAY_SIZE(jazz_cmos_rsrc),
 177         .resource       = jazz_cmos_rsrc
 178 };
 179
 180 static struct platform_device pcspeaker_pdev = {
 181         .name           = "pcspkr",
 182         .id             = -1,
 183 };
 184
 185 static int __init jazz_setup_devinit(void)
 186 {
 187         platform_device_register(&jazz_serial8250_device);
 188         platform_device_register(&jazz_esp_pdev);
 189         platform_device_register(&jazz_sonic_pdev);
 190         platform_device_register(&jazz_cmos_pdev);
 191         platform_device_register(&pcspeaker_pdev);
 192
 193         return 0;
 194 }
 195
 196 device_initcall(jazz_setup_devinit);