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                .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
 106static 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
 112static 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
 120static 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
 138static 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
 144static 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
 157static struct platform_device jazz_sonic_pdev = {
 158        .name           = "jazzsonic",
 159        .num_resources  = ARRAY_SIZE(jazz_sonic_rsrc),
 160        .resource       = jazz_sonic_rsrc
 161};
 162
 163static 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
 176static 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
 182static struct platform_device pcspeaker_pdev = {
 183        .name           = "pcspkr",
 184        .id             = -1,
 185};
 186
 187static 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
 198device_initcall(jazz_setup_devinit);
 199