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