text: /*-
   * Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
   * All rights reserved.
   *
   * Developed by Semihalf.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. Neither the name of MARVELL nor the names of contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   */
  
  #include <sys/cdefs.h>
  __FBSDID("$FreeBSD: soc2013/dpl/head/sys/arm/mv/discovery/discovery.c 235942 2012-05-18 14:41:14Z gber $");
  
  #include <sys/param.h>
  #include <sys/systm.h>
  #include <sys/bus.h>
  
  #include <machine/bus.h>
  #include <machine/fdt.h>
  
  #include <arm/mv/mvreg.h>
  #include <arm/mv/mvvar.h>
  #include <arm/mv/mvwin.h>
  
  /*
   * Virtual address space layout:
   * -----------------------------
   * 0x0000_0000 - 0xBFFF_FFFF	: User Process (3 GB)
   * 0xC000_0000 - virtual_avail	: Kernel Reserved (text, data, page tables,
   * 				: stack etc.)
   * virtual-avail - 0xEFFF_FFFF	: KVA (virtual_avail is typically < 0xc0a0_0000)
   * 0xF000_0000 - 0xF0FF_FFFF	: No-Cache allocation area (16 MB)
   * 0xF100_0000 - 0xF10F_FFFF	: SoC Integrated devices registers range (1 MB)
   * 0xF110_0000 - 0xF11F_FFFF	: PCI-Express I/O space (1MB)
   * 0xF120_0000 - 0xF12F_FFFF	: PCI I/O space (1MB)
   * 0xF130_0000 - 0xF52F_FFFF	: PCI-Express memory space (64MB)
   * 0xF530_0000 - 0xF92F_FFFF	: PCI memory space (64MB)
   * 0xF930_0000 - 0xF93F_FFFF	: Device Bus: BOOT (1 MB)
   * 0xF940_0000 - 0xF94F_FFFF	: Device Bus: CS0 (1 MB)
   * 0xF950_0000 - 0xFB4F_FFFF	: Device Bus: CS1 (32 MB)
   * 0xFB50_0000 - 0xFB5F_FFFF	: Device Bus: CS2 (1 MB)
   * 0xFB60_0000 - 0xFFFE_FFFF	: Unused (~74MB)
   * 0xFFFF_0000 - 0xFFFF_0FFF	: 'High' vectors page (4 kB)
   * 0xFFFF_1000 - 0xFFFF_1FFF	: ARM_TP_ADDRESS/RAS page (4 kB)
   * 0xFFFF_2000 - 0xFFFF_FFFF	: Unused (56 kB)
   */
  
  
  struct resource_spec mv_gpio_res[] = {
  	{ SYS_RES_MEMORY,	0,	RF_ACTIVE },
  	{ SYS_RES_IRQ,		0,	RF_ACTIVE },
  	{ SYS_RES_IRQ,		1,	RF_ACTIVE },
  	{ SYS_RES_IRQ,		2,	RF_ACTIVE },
  	{ SYS_RES_IRQ,		3,	RF_ACTIVE },
  	{ -1, 0 }
  };
  
  const struct decode_win idma_win_tbl[] = {
  	{ 0 },
  };
  const struct decode_win *idma_wins = idma_win_tbl;
  int idma_wins_no = 0;
  
  const struct decode_win xor_win_tbl[] = {
  	{ 0 },
  };
  const struct decode_win *xor_wins = xor_win_tbl;
  int xor_wins_no = 0;
  
  uint32_t
  get_tclk(void)
  {
  	uint32_t sar;
  
  	/*
  	 * On Discovery TCLK is can be configured to 166 MHz or 200 MHz.
  	 * Current setting is read from Sample At Reset register.
  	 */
  	sar = bus_space_read_4(fdtbus_bs_tag, MV_MPP_BASE, SAMPLE_AT_RESET_HI);
  	sar = (sar & TCLK_MASK) >> TCLK_SHIFT;
  
  	switch (sar) {
  	case 0:
  		return (TCLK_166MHZ);
  	case 1:
  		return (TCLK_200MHZ);
  	default:
  		panic("Unknown TCLK settings!");
  	}
  }
  