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p720t.c

/*
 *  linux/arch/arm/mach-clps711x/p720t.c
 *
 *  Copyright (C) 2000-2001 Deep Blue Solutions Ltd
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/mm.h>

#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <asm/sizes.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/arch/syspld.h>

#include "common.h"

/*
 * Map the P720T system PLD.  It occupies two address spaces:
 *  SYSPLD_PHYS_BASE and SYSPLD_PHYS_BASE + 0x00400000
 * We map both here.
 */
static struct map_desc p720t_io_desc[] __initdata = {
      {
            .virtual    = SYSPLD_VIRT_BASE,
            .pfn        = __phys_to_pfn(SYSPLD_PHYS_BASE),
            .length           = SZ_1M,
            .type       = MT_DEVICE
      }, {
            .virtual    = 0xfe400000,
            .pfn        = __phys_to_pfn(0x10400000),
            .length           = SZ_1M,
            .type       = MT_DEVICE
      }
};

static void __init
fixup_p720t(struct machine_desc *desc, struct tag *tag,
          char **cmdline, struct meminfo *mi)
{
      /*
       * Our bootloader doesn't setup any tags (yet).
       */
      if (tag->hdr.tag != ATAG_CORE) {
            tag->hdr.tag = ATAG_CORE;
            tag->hdr.size = tag_size(tag_core);
            tag->u.core.flags = 0;
            tag->u.core.pagesize = PAGE_SIZE;
            tag->u.core.rootdev = 0x0100;

            tag = tag_next(tag);
            tag->hdr.tag = ATAG_MEM;
            tag->hdr.size = tag_size(tag_mem32);
            tag->u.mem.size = 4096;
            tag->u.mem.start = PHYS_OFFSET;

            tag = tag_next(tag);
            tag->hdr.tag = ATAG_NONE;
            tag->hdr.size = 0;
      }
}

static void __init p720t_map_io(void)
{
      clps711x_map_io();
      iotable_init(p720t_io_desc, ARRAY_SIZE(p720t_io_desc));
}

MACHINE_START(P720T, "ARM-Prospector720T")
      /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
      .phys_io    = 0x80000000,
      .io_pg_offst      = ((0xff000000) >> 18) & 0xfffc,
      .boot_params      = 0xc0000100,
      .fixup            = fixup_p720t,
      .map_io           = p720t_map_io,
      .init_irq   = clps711x_init_irq,
      .timer            = &clps711x_timer,
MACHINE_END

static int p720t_hw_init(void)
{
      /*
       * Power down as much as possible in case we don't
       * have the drivers loaded.
       */
      PLD_LCDEN = 0;
      PLD_PWR  &= ~(PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON);

      PLD_KBD   = 0;
      PLD_IO    = 0;
      PLD_IRDA  = 0;
      PLD_CODEC = 0;
      PLD_TCH   = 0;
      PLD_SPI   = 0;
#ifndef CONFIG_DEBUG_LL
      PLD_COM2  = 0;
      PLD_COM1  = 0;
#endif

      return 0;
}

__initcall(p720t_hw_init);


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