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 /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know
  92    exactly which ones ... XXX */
  93 #define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */
  94 #endif
  95
  96 #define MEMPORT(_base, _irq)                            \
  97         {                                               \
  98                 .mapbase        = (_base),              \
  99                 .membase        = (void *)(_base),      \
 100                 .irq            = (_irq),               \
 101                 .uartclk        = UART_CLK,             \
 102                 .iotype         = UPIO_MEM,             \
 103                 .flags          = UPF_BOOT_AUTOCONF,    \
 104         }
 105
 106 static struct plat_serial8250_port jazz_serial_data[] = {
 107         MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ),
 108         MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ),
 109         { },
 110 };
 111
 112 static struct platform_device jazz_serial8250_device = {
 113         .name                   = "serial8250",
 114         .id                     = PLAT8250_DEV_PLATFORM,
 115         .dev                    = {
 116                 .platform_data  = jazz_serial_data,
 117         },
 118 };
 119
 120 static struct resource jazz_esp_rsrc[] = {
 121         {
 122                 .start = JAZZ_SCSI_BASE,
 123                 .end   = JAZZ_SCSI_BASE + 31,
 124                 .flags = IORESOURCE_MEM
 125         },
 126         {
 127                 .start = JAZZ_SCSI_DMA,
 128                 .end   = JAZZ_SCSI_DMA,
 129                 .flags = IORESOURCE_MEM
 130         },
 131         {
 132                 .start = JAZZ_SCSI_IRQ,
 133                 .end   = JAZZ_SCSI_IRQ,
 134                 .flags = IORESOURCE_IRQ
 135         }
 136 };
 137
 138 static struct platform_device jazz_esp_pdev = {
 139         .name           = "jazz_esp",
 140         .num_resources  = ARRAY_SIZE(jazz_esp_rsrc),
 141         .resource       = jazz_esp_rsrc
 142 };
 143
 144 static struct resource jazz_sonic_rsrc[] = {
 145         {
 146                 .start = JAZZ_ETHERNET_BASE,
 147                 .end   = JAZZ_ETHERNET_BASE + 0xff,
 148                 .flags = IORESOURCE_MEM
 149         },
 150         {
 151                 .start = JAZZ_ETHERNET_IRQ,
 152                 .end   = JAZZ_ETHERNET_IRQ,
 153                 .flags = IORESOURCE_IRQ
 154         }
 155 };
 156
 157 static struct platform_device jazz_sonic_pdev = {
 158         .name           = "jazzsonic",
 159         .num_resources  = ARRAY_SIZE(jazz_sonic_rsrc),
 160         .resource       = jazz_sonic_rsrc
 161 };
 162
 163 static struct resource jazz_cmos_rsrc[] = {
 164         {
 165                 .start = 0x70,
 166                 .end   = 0x71,
 167                 .flags = IORESOURCE_IO
 168         },
 169         {
 170                 .start = 8,
 171                 .end   = 8,
 172                 .flags = IORESOURCE_IRQ
 173         }
 174 };
 175
 176 static struct platform_device jazz_cmos_pdev = {
 177         .name           = "rtc_cmos",
 178         .num_resources  = ARRAY_SIZE(jazz_cmos_rsrc),
 179         .resource       = jazz_cmos_rsrc
 180 };
 181
 182 static struct platform_device pcspeaker_pdev = {
 183         .name           = "pcspkr",
 184         .id             = -1,
 185 };
 186
 187 static int __init jazz_setup_devinit(void)
 188 {
 189         platform_device_register(&jazz_serial8250_device);
 190         platform_device_register(&jazz_esp_pdev);
 191         platform_device_register(&jazz_sonic_pdev);
 192         platform_device_register(&jazz_cmos_pdev);
 193         platform_device_register(&pcspeaker_pdev);
 194
 195         return 0;
 196 }
 197
 198 device_initcall(jazz_setup_devinit);