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setup.c

/*
 * Setup pointers to hardware-dependent routines.
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1996, 1997, 1998, 2001, 07, 08 by Ralf Baechle
 * Copyright (C) 2001 MIPS Technologies, Inc.
 * Copyright (C) 2007 by Thomas Bogendoerfer
 */
#include <linux/eisa.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/console.h>
#include <linux/screen_info.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>

#include <asm/jazz.h>
#include <asm/jazzdma.h>
#include <asm/reboot.h>
#include <asm/pgtable.h>

extern asmlinkage void jazz_handle_int(void);

extern void jazz_machine_restart(char *command);

static struct resource jazz_io_resources[] = {
      {
            .start      = 0x00,
            .end  = 0x1f,
            .name = "dma1",
            .flags      = IORESOURCE_BUSY
      }, {
            .start      = 0x40,
            .end  = 0x5f,
            .name = "timer",
            .flags      = IORESOURCE_BUSY
      }, {
            .start      = 0x80,
            .end  = 0x8f,
            .name = "dma page reg",
            .flags      = IORESOURCE_BUSY
      }, {
            .start      = 0xc0,
            .end  = 0xdf,
            .name = "dma2",
            .flags      = IORESOURCE_BUSY
      }
};

void __init plat_mem_setup(void)
{
      int i;

      /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
      add_wired_entry(0x02000017, 0x03c00017, 0xe0000000, PM_64K);
      /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
      add_wired_entry(0x02400017, 0x02440017, 0xe2000000, PM_16M);
      /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
      add_wired_entry(0x01800017, 0x01000017, 0xe4000000, PM_4M);

      set_io_port_base(JAZZ_PORT_BASE);
#ifdef CONFIG_EISA
      EISA_bus = 1;
#endif

      /* request I/O space for devices used on all i[345]86 PCs */
      for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
            request_resource(&ioport_resource, jazz_io_resources + i);

      /* The RTC is outside the port address space */

      _machine_restart = jazz_machine_restart;

#ifdef CONFIG_VT
      screen_info = (struct screen_info) {
            0, 0,       /* orig-x, orig-y */
            0,          /* unused */
            0,          /* orig_video_page */
            0,          /* orig_video_mode */
            160,        /* orig_video_cols */
            0, 0, 0,    /* unused, ega_bx, unused */
            64,         /* orig_video_lines */
            0,          /* orig_video_isVGA */
            16          /* orig_video_points */
      };
#endif

      add_preferred_console("ttyS", 0, "9600");
}

#ifdef CONFIG_OLIVETTI_M700
#define UART_CLK  1843200
#else
/* Some Jazz machines seem to have an 8MHz crystal clock but I don't know
   exactly which ones ... XXX */
#define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */
#endif

#define MEMPORT(_base, _irq)                    \
      {                                   \
            .mapbase    = (_base),        \
            .membase    = (void *)(_base),      \
            .irq        = (_irq),         \
            .uartclk    = UART_CLK,       \
            .iotype           = UPIO_MEM,       \
            .flags            = UPF_BOOT_AUTOCONF,    \
      }

static struct plat_serial8250_port jazz_serial_data[] = {
      MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ),
      MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ),
      { },
};

static struct platform_device jazz_serial8250_device = {
      .name             = "serial8250",
      .id               = PLAT8250_DEV_PLATFORM,
      .dev              = {
            .platform_data    = jazz_serial_data,
      },
};

static struct resource jazz_esp_rsrc[] = {
      {
            .start = JAZZ_SCSI_BASE,
            .end   = JAZZ_SCSI_BASE + 31,
            .flags = IORESOURCE_MEM
      },
      {
            .start = JAZZ_SCSI_DMA,
            .end   = JAZZ_SCSI_DMA,
            .flags = IORESOURCE_MEM
      },
      {
            .start = JAZZ_SCSI_IRQ,
            .end   = JAZZ_SCSI_IRQ,
            .flags = IORESOURCE_IRQ
      }
};

static struct platform_device jazz_esp_pdev = {
      .name           = "jazz_esp",
      .num_resources  = ARRAY_SIZE(jazz_esp_rsrc),
      .resource       = jazz_esp_rsrc
};

static struct resource jazz_sonic_rsrc[] = {
      {
            .start = JAZZ_ETHERNET_BASE,
            .end   = JAZZ_ETHERNET_BASE + 0xff,
            .flags = IORESOURCE_MEM
      },
      {
            .start = JAZZ_ETHERNET_IRQ,
            .end   = JAZZ_ETHERNET_IRQ,
            .flags = IORESOURCE_IRQ
      }
};

static struct platform_device jazz_sonic_pdev = {
      .name           = "jazzsonic",
      .num_resources  = ARRAY_SIZE(jazz_sonic_rsrc),
      .resource       = jazz_sonic_rsrc
};

static struct resource jazz_cmos_rsrc[] = {
      {
            .start = 0x70,
            .end   = 0x71,
            .flags = IORESOURCE_IO
      },
      {
            .start = 8,
            .end   = 8,
            .flags = IORESOURCE_IRQ
      }
};

static struct platform_device jazz_cmos_pdev = {
      .name           = "rtc_cmos",
      .num_resources  = ARRAY_SIZE(jazz_cmos_rsrc),
      .resource       = jazz_cmos_rsrc
};

static struct platform_device pcspeaker_pdev = {
      .name           = "pcspkr",
      .id         = -1,
};

static int __init jazz_setup_devinit(void)
{
      platform_device_register(&jazz_serial8250_device);
      platform_device_register(&jazz_esp_pdev);
      platform_device_register(&jazz_sonic_pdev);
      platform_device_register(&jazz_cmos_pdev);
      platform_device_register(&pcspeaker_pdev);

      return 0;
}

device_initcall(jazz_setup_devinit);

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