text: /*
   * linux/arch/arm/mach-omap1/board-voiceblue.c
   *
   * Modified from board-generic.c
   *
   * Copyright (C) 2004 2N Telekomunikace, Ladislav Michl <michl@2n.cz>
   *
   * Code for OMAP5910 based VoiceBlue board (VoIP to GSM gateway).
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   */
  
  #include <linux/delay.h>
  #include <linux/platform_device.h>
  #include <linux/interrupt.h>
  #include <linux/init.h>
  #include <linux/kernel.h>
  #include <linux/notifier.h>
  #include <linux/reboot.h>
  #include <linux/serial_8250.h>
  #include <linux/serial_reg.h>
  
  #include <asm/hardware.h>
  #include <asm/mach-types.h>
  #include <asm/mach/arch.h>
  #include <asm/mach/flash.h>
  #include <asm/mach/map.h>
  
  #include <asm/arch/common.h>
  #include <asm/arch/gpio.h>
  #include <asm/arch/mux.h>
  #include <asm/arch/tc.h>
  #include <asm/arch/usb.h>
  
  extern void omap_init_time(void);
  extern int omap_gpio_init(void);
  
  static struct plat_serial8250_port voiceblue_ports[] = {
  	{
  		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x40000),
  		.irq		= OMAP_GPIO_IRQ(12),
  		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
  		.iotype		= UPIO_MEM,
  		.regshift	= 1,
  		.uartclk	= 3686400,
  	},
  	{
  		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x50000),
  		.irq		= OMAP_GPIO_IRQ(13),
  		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
  		.iotype		= UPIO_MEM,
  		.regshift	= 1,
  		.uartclk	= 3686400,
  	},
  	{
  		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x60000),
  		.irq		= OMAP_GPIO_IRQ(14),
  		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
  		.iotype		= UPIO_MEM,
  		.regshift	= 1,
  		.uartclk	= 3686400,
  	},
  	{
  		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x70000),
  		.irq		= OMAP_GPIO_IRQ(15),
  		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
  		.iotype		= UPIO_MEM,
  		.regshift	= 1,
  		.uartclk	= 3686400,
  	},
  	{ },
  };
  
  static struct platform_device serial_device = {
  	.name			= "serial8250",
  	.id			= PLAT8250_DEV_PLATFORM1,
  	.dev			= {
  		.platform_data	= voiceblue_ports,
  	},
  };
  
  static int __init ext_uart_init(void)
  {
  	return platform_device_register(&serial_device);
  }
  arch_initcall(ext_uart_init);
  
  static struct flash_platform_data voiceblue_flash_data = {
  	.map_name	= "cfi_probe",
  	.width		= 2,
  };
  
  static struct resource voiceblue_flash_resource = {
  	.start	= OMAP_CS0_PHYS,
  	.end	= OMAP_CS0_PHYS + SZ_32M - 1,
  	.flags	= IORESOURCE_MEM,
  };
  
  static struct platform_device voiceblue_flash_device = {
  	.name		= "omapflash",
  	.id		= 0,
  	.dev		= {
  		.platform_data	= &voiceblue_flash_data,
  	},
  	.num_resources	= 1,
  	.resource	= &voiceblue_flash_resource,
  };
  
  static struct resource voiceblue_smc91x_resources[] = {
  	[0] = {
  		.start	= OMAP_CS2_PHYS + 0x300,
  		.end	= OMAP_CS2_PHYS + 0x300 + 16,
  		.flags	= IORESOURCE_MEM,
  	},
  	[1] = {
  		.start	= OMAP_GPIO_IRQ(8),
  		.end	= OMAP_GPIO_IRQ(8),
  		.flags	= IORESOURCE_IRQ,
  	},
  };
  
  static struct platform_device voiceblue_smc91x_device = {
  	.name		= "smc91x",
  	.id		= 0,
  	.num_resources	= ARRAY_SIZE(voiceblue_smc91x_resources),
  	.resource	= voiceblue_smc91x_resources,
  };
  
  static struct platform_device *voiceblue_devices[] __initdata = {
  	&voiceblue_flash_device,
  	&voiceblue_smc91x_device,
  };
  
  static struct omap_usb_config voiceblue_usb_config __initdata = {
  	.hmc_mode	= 3,
  	.register_host	= 1,
  	.register_dev   = 1,
  	.pins[0]	= 2,
  	.pins[1]	= 6,
  	.pins[2]	= 6,
  };
  
  static struct omap_mmc_config voiceblue_mmc_config __initdata = {
  	.mmc[0] = {
  		.enabled	= 1,
  		.power_pin	= 2,
  		.switch_pin	= -1,
  	},
  };
  
  static struct omap_uart_config voiceblue_uart_config __initdata = {
  	.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
  };
  
  static struct omap_board_config_kernel voiceblue_config[] = {
  	{ OMAP_TAG_USB,  &voiceblue_usb_config },
  	{ OMAP_TAG_MMC,  &voiceblue_mmc_config },
  	{ OMAP_TAG_UART, &voiceblue_uart_config },
  };
  
  static void __init voiceblue_init_irq(void)
  {
  	omap1_init_common_hw();
  	omap_init_irq();
  	omap_gpio_init();
  }
  
  static void __init voiceblue_init(void)
  {
  	/* Watchdog */
  	omap_request_gpio(0);
  	/* smc91x reset */
  	omap_request_gpio(7);
  	omap_set_gpio_direction(7, 0);
  	omap_set_gpio_dataout(7, 1);
  	udelay(2);	/* wait at least 100ns */
  	omap_set_gpio_dataout(7, 0);
  	mdelay(50);	/* 50ms until PHY ready */
  	/* smc91x interrupt pin */
  	omap_request_gpio(8);
  	/* 16C554 reset*/
  	omap_request_gpio(6);
  	omap_set_gpio_direction(6, 0);
  	omap_set_gpio_dataout(6, 0);
  	/* 16C554 interrupt pins */
  	omap_request_gpio(12);
  	omap_request_gpio(13);
  	omap_request_gpio(14);
  	omap_request_gpio(15);
  	set_irq_type(OMAP_GPIO_IRQ(12), IRQT_RISING);
  	set_irq_type(OMAP_GPIO_IRQ(13), IRQT_RISING);
  	set_irq_type(OMAP_GPIO_IRQ(14), IRQT_RISING);
  	set_irq_type(OMAP_GPIO_IRQ(15), IRQT_RISING);
  
  	platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
  	omap_board_config = voiceblue_config;
  	omap_board_config_size = ARRAY_SIZE(voiceblue_config);
  	omap_serial_init();
  
  	/* There is a good chance board is going up, so enable power LED
  	 * (it is connected through invertor) */
  	omap_writeb(0x00, OMAP_LPG1_LCR);
  	omap_writeb(0x00, OMAP_LPG1_PMR);	/* Disable clock */
  }
  
  static void __init voiceblue_map_io(void)
  {
  	omap1_map_common_io();
  }
  
  #define MACHINE_PANICED		1
  #define MACHINE_REBOOTING	2
  #define MACHINE_REBOOT		4
  static unsigned long machine_state;
  
  static int panic_event(struct notifier_block *this, unsigned long event,
  	 void *ptr)
  {
  	if (test_and_set_bit(MACHINE_PANICED, &machine_state))
  		return NOTIFY_DONE;
  
  	/* Flash power LED */
  	omap_writeb(0x78, OMAP_LPG1_LCR);
  	omap_writeb(0x01, OMAP_LPG1_PMR);	/* Enable clock */
  
  	return NOTIFY_DONE;
  }
  
  static struct notifier_block panic_block = {
  	.notifier_call	= panic_event,
  };
  
  static int __init voiceblue_setup(void)
  {
  	/* Setup panic notifier */
  	notifier_chain_register(&panic_notifier_list, &panic_block);
  
  	return 0;
  }
  postcore_initcall(voiceblue_setup);
  
  static int wdt_gpio_state;
  
  void voiceblue_wdt_enable(void)
  {
  	omap_set_gpio_direction(0, 0);
  	omap_set_gpio_dataout(0, 0);
  	omap_set_gpio_dataout(0, 1);
  	omap_set_gpio_dataout(0, 0);
  	wdt_gpio_state = 0;
  }
  
  void voiceblue_wdt_disable(void)
  {
  	omap_set_gpio_dataout(0, 0);
  	omap_set_gpio_dataout(0, 1);
  	omap_set_gpio_dataout(0, 0);
  	omap_set_gpio_direction(0, 1);
  }
  
  void voiceblue_wdt_ping(void)
  {
  	if (test_bit(MACHINE_REBOOT, &machine_state))
  		return;
  
  	wdt_gpio_state = !wdt_gpio_state;
  	omap_set_gpio_dataout(0, wdt_gpio_state);
  }
  
  void voiceblue_reset(void)
  {
  	set_bit(MACHINE_REBOOT, &machine_state);
  	voiceblue_wdt_enable();
  	while (1) ;
  }
  
  EXPORT_SYMBOL(voiceblue_wdt_enable);
  EXPORT_SYMBOL(voiceblue_wdt_disable);
  EXPORT_SYMBOL(voiceblue_wdt_ping);
  
  MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
  	/* Maintainer: Ladislav Michl <michl@2n.cz> */
  	.phys_io	= 0xfff00000,
  	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
  	.boot_params	= 0x10000100,
  	.map_io		= voiceblue_map_io,
  	.init_irq	= voiceblue_init_irq,
  	.init_machine	= voiceblue_init,
  	.timer		= &omap_timer,
  MACHINE_END
  