linux/arch/mips/jazz/setup.c
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   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
  25extern asmlinkage void jazz_handle_int(void);
  26
  27extern void jazz_machine_restart(char *command);
  28
  29static 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
  53void __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
 112static 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
 118static 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
 126static 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
 144static 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
 150static 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
 163static struct platform_device jazz_sonic_pdev = {
 164        .name           = "jazzsonic",
 165        .num_resources  = ARRAY_SIZE(jazz_sonic_rsrc),
 166        .resource       = jazz_sonic_rsrc
 167};
 168
 169static 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
 182static 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
 188static struct platform_device pcspeaker_pdev = {
 189        .name           = "pcspkr",
 190        .id             = -1,
 191};
 192
 193static 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
 204device_initcall(jazz_setup_devinit);
 205