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 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/hdreg.h>
  14 #include <linux/init.h>
  15 #include <linux/ioport.h>
  16 #include <linux/sched.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/mm.h>
  19 #include <linux/console.h>
  20 #include <linux/fb.h>
  21 #include <linux/ide.h>
  22 #include <linux/pm.h>
  23 #include <linux/screen_info.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/serial_8250.h>
  26
  27 #include <asm/bootinfo.h>
  28 #include <asm/irq.h>
  29 #include <asm/jazz.h>
  30 #include <asm/jazzdma.h>
  31 #include <asm/reboot.h>
  32 #include <asm/io.h>
  33 #include <asm/pgtable.h>
  34 #include <asm/time.h>
  35 #include <asm/traps.h>
  36 #include <asm/mc146818-time.h>
  37
  38 extern asmlinkage void jazz_handle_int(void);
  39
  40 extern void jazz_machine_restart(char *command);
  41
  42 void __init plat_timer_setup(struct irqaction *irq)
  43 {
  44         /* set the clock to 100 Hz */
  45         r4030_write_reg32(JAZZ_TIMER_INTERVAL, 9);
  46         setup_irq(JAZZ_TIMER_IRQ, irq);
  47 }
  48
  49 static struct resource jazz_io_resources[] = {
  50         {
  51                 .start  = 0x00,
  52                 .end    = 0x1f,
  53                 .name   = "dma1",
  54                 .flags  = IORESOURCE_BUSY
  55         }, {
  56                 .start  = 0x40,
  57                 .end    = 0x5f,
  58                 .name   = "timer",
  59                 .flags  = IORESOURCE_BUSY
  60         }, {
  61                 .start  = 0x80,
  62                 .end    = 0x8f,
  63                 .name   = "dma page reg",
  64                 .flags  = IORESOURCE_BUSY
  65         }, {
  66                 .start  = 0xc0,
  67                 .end    = 0xdf,
  68                 .name   = "dma2",
  69                 .flags  = IORESOURCE_BUSY
  70         }
  71 };
  72
  73 void __init plat_mem_setup(void)
  74 {
  75         int i;
  76
  77         /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
  78         add_wired_entry (0x02000017, 0x03c00017, 0xe0000000, PM_64K);
  79         /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
  80         add_wired_entry (0x02400017, 0x02440017, 0xe2000000, PM_16M);
  81         /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
  82         add_wired_entry (0x01800017, 0x01000017, 0xe4000000, PM_4M);
  83
  84         set_io_port_base(JAZZ_PORT_BASE);
  85 #ifdef CONFIG_EISA
  86         if (mips_machtype == MACH_MIPS_MAGNUM_4000)
  87                 EISA_bus = 1;
  88 #endif
  89         isa_slot_offset = 0xe3000000;
  90
  91         /* request I/O space for devices used on all i[345]86 PCs */
  92         for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
  93                 request_resource(&ioport_resource, jazz_io_resources + i);
  94
  95         /* The RTC is outside the port address space */
  96
  97         _machine_restart = jazz_machine_restart;
  98
  99 #ifdef CONFIG_VT
 100         screen_info = (struct screen_info) {
 101                 0, 0,           /* orig-x, orig-y */
 102                 0,              /* unused */
 103                 0,              /* orig_video_page */
 104                 0,              /* orig_video_mode */
 105                 160,            /* orig_video_cols */
 106                 0, 0, 0,        /* unused, ega_bx, unused */
 107                 64,             /* orig_video_lines */
 108                 0,              /* orig_video_isVGA */
 109                 16              /* orig_video_points */
 110         };
 111 #endif
 112
 113         add_preferred_console("ttyS", 0, "9600");
 114 }
 115
 116 #ifdef CONFIG_OLIVETTI_M700
 117 #define UART_CLK  1843200
 118 #else
 119 /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know
 120    exactly which ones ... XXX */
 121 #define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */
 122 #endif
 123
 124 #define MEMPORT(_base, _irq)                            \
 125         {                                               \
 126                 .mapbase        = (_base),              \
 127                 .membase        = (void *)(_base),      \
 128                 .irq            = (_irq),               \
 129                 .uartclk        = UART_CLK,             \
 130                 .iotype         = UPIO_MEM,             \
 131                 .flags          = UPF_BOOT_AUTOCONF,    \
 132         }
 133
 134 static struct plat_serial8250_port jazz_serial_data[] = {
 135         MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ),
 136         MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ),
 137         { },
 138 };
 139
 140 static struct platform_device jazz_serial8250_device = {
 141         .name                   = "serial8250",
 142         .id                     = PLAT8250_DEV_PLATFORM,
 143         .dev                    = {
 144                 .platform_data  = jazz_serial_data,
 145         },
 146 };
 147
 148 static struct resource jazz_esp_rsrc[] = {
 149         {
 150                 .start = JAZZ_SCSI_BASE,
 151                 .end   = JAZZ_SCSI_BASE + 31,
 152                 .flags = IORESOURCE_MEM
 153         },
 154         {
 155                 .start = JAZZ_SCSI_DMA,
 156                 .end   = JAZZ_SCSI_DMA,
 157                 .flags = IORESOURCE_MEM
 158         },
 159         {
 160                 .start = JAZZ_SCSI_IRQ,
 161                 .end   = JAZZ_SCSI_IRQ,
 162                 .flags = IORESOURCE_IRQ
 163         }
 164 };
 165
 166 static struct platform_device jazz_esp_pdev = {
 167         .name           = "jazz_esp",
 168         .num_resources  = ARRAY_SIZE(jazz_esp_rsrc),
 169         .resource       = jazz_esp_rsrc
 170 };
 171
 172 static struct resource jazz_sonic_rsrc[] = {
 173         {
 174                 .start = JAZZ_ETHERNET_BASE,
 175                 .end   = JAZZ_ETHERNET_BASE + 0xff,
 176                 .flags = IORESOURCE_MEM
 177         },
 178         {
 179                 .start = JAZZ_ETHERNET_IRQ,
 180                 .end   = JAZZ_ETHERNET_IRQ,
 181                 .flags = IORESOURCE_IRQ
 182         }
 183 };
 184
 185 static struct platform_device jazz_sonic_pdev = {
 186         .name           = "jazzsonic",
 187         .num_resources  = ARRAY_SIZE(jazz_sonic_rsrc),
 188         .resource       = jazz_sonic_rsrc
 189 };
 190
 191 static struct resource jazz_cmos_rsrc[] = {
 192         {
 193                 .start = 0x70,
 194                 .end   = 0x71,
 195                 .flags = IORESOURCE_IO
 196         },
 197         {
 198                 .start = 8,
 199                 .end   = 8,
 200                 .flags = IORESOURCE_IRQ
 201         }
 202 };
 203
 204 static struct platform_device jazz_cmos_pdev = {
 205         .name           = "rtc_cmos",
 206         .num_resources  = ARRAY_SIZE(jazz_cmos_rsrc),
 207         .resource       = jazz_cmos_rsrc
 208 };
 209
 210 static int __init jazz_setup_devinit(void)
 211 {
 212         platform_device_register(&jazz_serial8250_device);
 213         platform_device_register(&jazz_esp_pdev);
 214         platform_device_register(&jazz_sonic_pdev);
 215         platform_device_register(&jazz_cmos_pdev);
 216         return 0;
 217 }
 218
 219 device_initcall(jazz_setup_devinit);