/*
   * ALPHAPROJECT AP-SH4AD-0A Support.
   *
   * Copyright (C) 2010 ALPHAPROJECT Co.,Ltd.
   * Copyright (C) 2010  Matt Fleming
   * Copyright (C) 2010  Paul Mundt
   *
   * 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.
   */
  #include <linux/init.h>
  #include <linux/platform_device.h>
  #include <linux/io.h>
  #include <linux/regulator/fixed.h>
  #include <linux/regulator/machine.h>
  #include <linux/smsc911x.h>
  #include <linux/irq.h>
  #include <linux/clk.h>
  #include <asm/machvec.h>
  #include <asm/sizes.h>
  
  /* Dummy supplies, where voltage doesn't matter */
  static struct regulator_consumer_supply dummy_supplies[] = {
  	REGULATOR_SUPPLY("vddvario", "smsc911x"),
  	REGULATOR_SUPPLY("vdd33a", "smsc911x"),
  };
  
  static struct resource smsc911x_resources[] = {
  	[0] = {
  		.name		= "smsc911x-memory",
  		.start		= 0xA4000000,
  		.end		= 0xA4000000 + SZ_256 - 1,
  		.flags		= IORESOURCE_MEM,
  	},
  	[1] = {
  		.name		= "smsc911x-irq",
  		.start		= evt2irq(0x200),
  		.end		= evt2irq(0x200),
  		.flags		= IORESOURCE_IRQ,
  	},
  };
  
  static struct smsc911x_platform_config smsc911x_config = {
  	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  	.irq_type	= SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  	.flags		= SMSC911X_USE_16BIT,
  	.phy_interface	= PHY_INTERFACE_MODE_MII,
  };
  
  static struct platform_device smsc911x_device = {
  	.name		= "smsc911x",
  	.id		= -1,
  	.num_resources	= ARRAY_SIZE(smsc911x_resources),
  	.resource	= smsc911x_resources,
  	.dev = {
  		.platform_data = &smsc911x_config,
  	},
  };
  
  static struct platform_device *apsh4ad0a_devices[] __initdata = {
  	&smsc911x_device,
  };
  
  static int __init apsh4ad0a_devices_setup(void)
  {
  	regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
  
  	return platform_add_devices(apsh4ad0a_devices,
  				    ARRAY_SIZE(apsh4ad0a_devices));
  }
  device_initcall(apsh4ad0a_devices_setup);
  
  static int apsh4ad0a_mode_pins(void)
  {
  	int value = 0;
  
  	/* These are the factory default settings of SW1 and SW2.
  	 * If you change these dip switches then you will need to
  	 * adjust the values below as well.
  	 */
  	value |=  MODE_PIN0;  /* Clock Mode 3 */
  	value |=  MODE_PIN1;
  	value &= ~MODE_PIN2;
  	value &= ~MODE_PIN3;
  	value &= ~MODE_PIN4;  /* 16-bit Area0 bus width  */
  	value |=  MODE_PIN5;
  	value |=  MODE_PIN6;
  	value |=  MODE_PIN7;  /* Normal mode */
  	value |=  MODE_PIN8;  /* Little Endian */
  	value |=  MODE_PIN9;  /* Crystal resonator */
  	value &= ~MODE_PIN10; /* 29-bit address mode */
  	value &= ~MODE_PIN11; /* PCI-E Root port */
  	value &= ~MODE_PIN12; /* 4 lane + 1 lane */
  	value |=  MODE_PIN13; /* AUD Enable */
  	value &= ~MODE_PIN14; /* Normal Operation */
  
  	return value;
  }
  
  static int apsh4ad0a_clk_init(void)
  {
  	struct clk *clk;
  	int ret;
  
  	clk = clk_get(NULL, "extal");
  	if (IS_ERR(clk))
  		return PTR_ERR(clk);
  	ret = clk_set_rate(clk, 33333000);
  	clk_put(clk);
  
  	return ret;
  }
  
  /* Initialize the board */
  static void __init apsh4ad0a_setup(char **cmdline_p)
  {
  	pr_info("Alpha Project AP-SH4AD-0A support:
  ");
  }
  
  static void __init apsh4ad0a_init_irq(void)
  {
  	plat_irq_setup_pins(IRQ_MODE_IRQ3210);
  }
  
  /*
   * The Machine Vector
   */
  static struct sh_machine_vector mv_apsh4ad0a __initmv = {
  	.mv_name		= "AP-SH4AD-0A",
  	.mv_setup		= apsh4ad0a_setup,
  	.mv_mode_pins		= apsh4ad0a_mode_pins,
  	.mv_clk_init		= apsh4ad0a_clk_init,
  	.mv_init_irq		= apsh4ad0a_init_irq,
  };