/*
   * Bock-W board support
   *
   * Copyright (C) 2013  Renesas Solutions Corp.
   * Copyright (C) 2013  Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
   *
   * 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; version 2 of the License.
   *
   * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
   */
  
  #include <linux/of_platform.h>
  #include <mach/common.h>
  #include <mach/r8a7778.h>
  #include <asm/mach/arch.h>
  
  /*
   *	see board-bock.c for checking detail of dip-switch
   */
  
  #define FPGA	0x18200000
  #define IRQ0MR	0x30
  #define COMCTLR	0x101c
  
  #define PFC	0xfffc0000
  #define PUPR4	0x110
  static void __init bockw_init(void)
  {
  	void __iomem *fpga;
  	void __iomem *pfc;
  
  	r8a7778_clock_init();
  	r8a7778_init_irq_extpin_dt(1);
  	r8a7778_add_dt_devices();
  
  	fpga = ioremap_nocache(FPGA, SZ_1M);
  	if (fpga) {
  		/*
  		 * CAUTION
  		 *
  		 * IRQ0/1 is cascaded interrupt from FPGA.
  		 * it should be cared in the future
  		 * Now, it is assuming IRQ0 was used only from SMSC.
  		 */
  		u16 val = ioread16(fpga + IRQ0MR);
  		val &= ~(1 << 4); /* enable SMSC911x */
  		iowrite16(val, fpga + IRQ0MR);
  
  		iounmap(fpga);
  	}
  
  	pfc = ioremap_nocache(PFC, 0x200);
  	if (pfc) {
  		/*
  		 * FIXME
  		 *
  		 * SDHI CD/WP pin needs pull-up
  		 */
  		iowrite32(ioread32(pfc + PUPR4) | (3 << 26), pfc + PUPR4);
  		iounmap(pfc);
  	}
  
  	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
  }
  
  static const char *bockw_boards_compat_dt[] __initdata = {
  	"renesas,bockw-reference",
  	NULL,
  };
  
  DT_MACHINE_START(BOCKW_DT, "bockw")
  	.init_early	= r8a7778_init_delay,
  	.init_irq	= r8a7778_init_irq_dt,
  	.init_machine	= bockw_init,
  	.dt_compat	= bockw_boards_compat_dt,
  MACHINE_END