/*

   * arch/arm/mach-orion5x/rd88f5182-setup.c

   *
   * Marvell Orion-NAS Reference Design Setup
   *
   * Maintainer: Ronen Shitrit <rshitrit@marvell.com>
   *

   * This file is licensed under the terms of the GNU General Public
   * License version 2.  This program is licensed "as is" without any

   * warranty of any kind, whether express or implied.
   */

  #include <linux/gpio.h>

  #include <linux/kernel.h>
  #include <linux/init.h>
  #include <linux/platform_device.h>
  #include <linux/pci.h>
  #include <linux/irq.h>
  #include <linux/mtd/physmap.h>
  #include <linux/mv643xx_eth.h>

  #include <linux/ata_platform.h>

  #include <linux/i2c.h>
  #include <asm/mach-types.h>

  #include <asm/leds.h>
  #include <asm/mach/arch.h>
  #include <asm/mach/pci.h>

  #include <mach/orion5x.h>

  #include "common.h"

  #include "mpp.h"

  
  /*****************************************************************************
   * RD-88F5182 Info
   ****************************************************************************/
  
  /*
   * 512K NOR flash Device bus boot chip select
   */
  
  #define RD88F5182_NOR_BOOT_BASE		0xf4000000
  #define RD88F5182_NOR_BOOT_SIZE		SZ_512K
  
  /*
   * 16M NOR flash on Device bus chip select 1
   */
  
  #define RD88F5182_NOR_BASE		0xfc000000
  #define RD88F5182_NOR_SIZE		SZ_16M
  
  /*
   * PCI
   */
  
  #define RD88F5182_PCI_SLOT0_OFFS	7
  #define RD88F5182_PCI_SLOT0_IRQ_A_PIN	7
  #define RD88F5182_PCI_SLOT0_IRQ_B_PIN	6
  
  /*
   * GPIO Debug LED
   */
  
  #define RD88F5182_GPIO_DBG_LED		0
  
  /*****************************************************************************
   * 16M NOR Flash on Device bus CS1
   ****************************************************************************/
  
  static struct physmap_flash_data rd88f5182_nor_flash_data = {
  	.width		= 1,
  };
  
  static struct resource rd88f5182_nor_flash_resource = {
  	.flags			= IORESOURCE_MEM,
  	.start			= RD88F5182_NOR_BASE,
  	.end			= RD88F5182_NOR_BASE + RD88F5182_NOR_SIZE - 1,
  };
  
  static struct platform_device rd88f5182_nor_flash = {
  	.name			= "physmap-flash",
  	.id			= 0,
  	.dev		= {
  		.platform_data	= &rd88f5182_nor_flash_data,
  	},
  	.num_resources		= 1,
  	.resource		= &rd88f5182_nor_flash_resource,
  };
  
  #ifdef CONFIG_LEDS
  
  /*****************************************************************************
   * Use GPIO debug led as CPU active indication
   ****************************************************************************/
  
  static void rd88f5182_dbgled_event(led_event_t evt)
  {
  	int val;
  
  	if (evt == led_idle_end)
  		val = 1;
  	else if (evt == led_idle_start)
  		val = 0;
  	else
  		return;
  
  	gpio_set_value(RD88F5182_GPIO_DBG_LED, val);
  }
  
  static int __init rd88f5182_dbgled_init(void)
  {
  	int pin;
  
  	if (machine_is_rd88f5182()) {
  		pin = RD88F5182_GPIO_DBG_LED;
  
  		if (gpio_request(pin, "DBGLED") == 0) {
  			if (gpio_direction_output(pin, 0) != 0) {
  				printk(KERN_ERR "rd88f5182_dbgled_init failed "
  						"to set output pin %d
  ", pin);
  				gpio_free(pin);
  				return 0;
  			}
  		} else {
  			printk(KERN_ERR "rd88f5182_dbgled_init failed "
  					"to request gpio %d
  ", pin);
  			return 0;
  		}
  
  		leds_event = rd88f5182_dbgled_event;
  	}

  	return 0;
  }
  
  __initcall(rd88f5182_dbgled_init);
  
  #endif
  
  /*****************************************************************************
   * PCI
   ****************************************************************************/
  
  void __init rd88f5182_pci_preinit(void)
  {
  	int pin;
  
  	/*
  	 * Configure PCI GPIO IRQ pins
  	 */
  	pin = RD88F5182_PCI_SLOT0_IRQ_A_PIN;
  	if (gpio_request(pin, "PCI IntA") == 0) {
  		if (gpio_direction_input(pin) == 0) {

  			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);

  		} else {
  			printk(KERN_ERR "rd88f5182_pci_preinit faield to "
  					"set_irq_type pin %d
  ", pin);
  			gpio_free(pin);
  		}
  	} else {
  		printk(KERN_ERR "rd88f5182_pci_preinit failed to request gpio %d
  ", pin);
  	}
  
  	pin = RD88F5182_PCI_SLOT0_IRQ_B_PIN;
  	if (gpio_request(pin, "PCI IntB") == 0) {
  		if (gpio_direction_input(pin) == 0) {

  			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);

  		} else {
  			printk(KERN_ERR "rd88f5182_pci_preinit faield to "
  					"set_irq_type pin %d
  ", pin);
  			gpio_free(pin);
  		}
  	} else {
  		printk(KERN_ERR "rd88f5182_pci_preinit failed to gpio_request %d
  ", pin);
  	}
  }

  static int __init rd88f5182_pci_map_irq(const struct pci_dev *dev, u8 slot,
  	u8 pin)

  {

  	int irq;

  	/*

  	 * Check for devices with hard-wired IRQs.

  	 */

  	irq = orion5x_pci_map_irq(dev, slot, pin);
  	if (irq != -1)
  		return irq;

  
  	/*
  	 * PCI IRQs are connected via GPIOs
  	 */
  	switch (slot - RD88F5182_PCI_SLOT0_OFFS) {
  	case 0:
  		if (pin == 1)
  			return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_A_PIN);
  		else
  			return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_B_PIN);
  	default:
  		return -1;
  	}
  }
  
  static struct hw_pci rd88f5182_pci __initdata = {
  	.nr_controllers	= 2,
  	.preinit	= rd88f5182_pci_preinit,
  	.swizzle	= pci_std_swizzle,

  	.setup		= orion5x_pci_sys_setup,
  	.scan		= orion5x_pci_sys_scan_bus,

  	.map_irq	= rd88f5182_pci_map_irq,
  };
  
  static int __init rd88f5182_pci_init(void)
  {
  	if (machine_is_rd88f5182())
  		pci_common_init(&rd88f5182_pci);
  
  	return 0;
  }
  
  subsys_initcall(rd88f5182_pci_init);
  
  /*****************************************************************************
   * Ethernet
   ****************************************************************************/
  
  static struct mv643xx_eth_platform_data rd88f5182_eth_data = {

  	.phy_addr	= MV643XX_ETH_PHY_ADDR(8),

  };
  
  /*****************************************************************************
   * RTC DS1338 on I2C bus
   ****************************************************************************/
  static struct i2c_board_info __initdata rd88f5182_i2c_rtc = {

  	I2C_BOARD_INFO("ds1338", 0x68),

  };
  
  /*****************************************************************************

   * Sata
   ****************************************************************************/
  static struct mv_sata_platform_data rd88f5182_sata_data = {

  	.n_ports	= 2,

  };
  
  /*****************************************************************************

   * General Setup
   ****************************************************************************/

  static unsigned int rd88f5182_mpp_modes[] __initdata = {
  	MPP0_GPIO,		/* Debug Led */
  	MPP1_GPIO,		/* Reset Switch */
  	MPP2_UNUSED,
  	MPP3_GPIO,		/* RTC Int */
  	MPP4_GPIO,
  	MPP5_GPIO,
  	MPP6_GPIO,		/* PCI_intA */
  	MPP7_GPIO,		/* PCI_intB */
  	MPP8_UNUSED,
  	MPP9_UNUSED,
  	MPP10_UNUSED,
  	MPP11_UNUSED,
  	MPP12_SATA_LED,		/* SATA 0 presence */
  	MPP13_SATA_LED,		/* SATA 1 presence */
  	MPP14_SATA_LED,		/* SATA 0 active */
  	MPP15_SATA_LED,		/* SATA 1 active */
  	MPP16_UNUSED,
  	MPP17_UNUSED,
  	MPP18_UNUSED,
  	MPP19_UNUSED,
  	0,

  };

  static void __init rd88f5182_init(void)
  {
  	/*
  	 * Setup basic Orion functions. Need to be called early.
  	 */

  	orion5x_init();

  	orion5x_mpp_conf(rd88f5182_mpp_modes);

  	/*

  	 * MPP[20] PCI Clock to MV88F5182
  	 * MPP[21] PCI Clock to mini PCI CON11
  	 * MPP[22] USB 0 over current indication
  	 * MPP[23] USB 1 over current indication
  	 * MPP[24] USB 1 over current enable
  	 * MPP[25] USB 0 over current enable
  	 */

  	/*
  	 * Configure peripherals.
  	 */
  	orion5x_ehci0_init();
  	orion5x_ehci1_init();

  	orion5x_eth_init(&rd88f5182_eth_data);

  	orion5x_i2c_init();

  	orion5x_sata_init(&rd88f5182_sata_data);

  	orion5x_uart0_init();

  	orion5x_xor_init();

  
  	orion5x_setup_dev_boot_win(RD88F5182_NOR_BOOT_BASE,
  				   RD88F5182_NOR_BOOT_SIZE);
  
  	orion5x_setup_dev1_win(RD88F5182_NOR_BASE, RD88F5182_NOR_SIZE);
  	platform_device_register(&rd88f5182_nor_flash);
  
  	i2c_register_board_info(0, &rd88f5182_i2c_rtc, 1);

  }
  
  MACHINE_START(RD88F5182, "Marvell Orion-NAS Reference Design")
  	/* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */

  	.atag_offset	= 0x100,

  	.init_machine	= rd88f5182_init,

  	.map_io		= orion5x_map_io,

  	.init_early	= orion5x_init_early,

  	.init_irq	= orion5x_init_irq,
  	.timer		= &orion5x_timer,

  	.restart	= orion5x_restart,

  MACHINE_END