text: /* linux/arch/arm/mach-s5p64x0/mach-smdk6450.c
   *
   * Copyright (c) 2010 Samsung Electronics Co., Ltd.
   *		http://www.samsung.com
   *
   * 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/kernel.h>
  #include <linux/types.h>
  #include <linux/interrupt.h>
  #include <linux/list.h>
  #include <linux/timer.h>
  #include <linux/delay.h>
  #include <linux/init.h>
  #include <linux/i2c.h>
  #include <linux/serial_core.h>
  #include <linux/platform_device.h>
  #include <linux/io.h>
  #include <linux/module.h>
  #include <linux/clk.h>
  #include <linux/gpio.h>
  #include <linux/pwm_backlight.h>
  
  #include <asm/mach/arch.h>
  #include <asm/mach/map.h>
  #include <asm/irq.h>
  #include <asm/mach-types.h>
  
  #include <mach/hardware.h>
  #include <mach/map.h>
  #include <mach/regs-clock.h>
  #include <mach/i2c.h>
  #include <mach/regs-gpio.h>
  
  #include <plat/regs-serial.h>
  #include <plat/gpio-cfg.h>
  #include <plat/s5p6450.h>
  #include <plat/clock.h>
  #include <plat/devs.h>
  #include <plat/cpu.h>
  #include <plat/iic.h>
  #include <plat/pll.h>
  #include <plat/adc.h>
  #include <plat/ts.h>
  #include <plat/s5p-time.h>
  
  #define SMDK6450_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
  				S3C2410_UCON_RXILEVEL |		\
  				S3C2410_UCON_TXIRQMODE |	\
  				S3C2410_UCON_RXIRQMODE |	\
  				S3C2410_UCON_RXFIFO_TOI |	\
  				S3C2443_UCON_RXERR_IRQEN)
  
  #define SMDK6450_ULCON_DEFAULT	S3C2410_LCON_CS8
  
  #define SMDK6450_UFCON_DEFAULT	(S3C2410_UFCON_FIFOMODE |	\
  				S3C2440_UFCON_TXTRIG16 |	\
  				S3C2410_UFCON_RXTRIG8)
  
  static struct s3c2410_uartcfg smdk6450_uartcfgs[] __initdata = {
  	[0] = {
  		.hwport		= 0,
  		.flags		= 0,
  		.ucon		= SMDK6450_UCON_DEFAULT,
  		.ulcon		= SMDK6450_ULCON_DEFAULT,
  		.ufcon		= SMDK6450_UFCON_DEFAULT,
  	},
  	[1] = {
  		.hwport		= 1,
  		.flags		= 0,
  		.ucon		= SMDK6450_UCON_DEFAULT,
  		.ulcon		= SMDK6450_ULCON_DEFAULT,
  		.ufcon		= SMDK6450_UFCON_DEFAULT,
  	},
  	[2] = {
  		.hwport		= 2,
  		.flags		= 0,
  		.ucon		= SMDK6450_UCON_DEFAULT,
  		.ulcon		= SMDK6450_ULCON_DEFAULT,
  		.ufcon		= SMDK6450_UFCON_DEFAULT,
  	},
  	[3] = {
  		.hwport		= 3,
  		.flags		= 0,
  		.ucon		= SMDK6450_UCON_DEFAULT,
  		.ulcon		= SMDK6450_ULCON_DEFAULT,
  		.ufcon		= SMDK6450_UFCON_DEFAULT,
  	},
  #if CONFIG_SERIAL_SAMSUNG_UARTS > 4
  	[4] = {
  		.hwport		= 4,
  		.flags		= 0,
  		.ucon		= SMDK6450_UCON_DEFAULT,
  		.ulcon		= SMDK6450_ULCON_DEFAULT,
  		.ufcon		= SMDK6450_UFCON_DEFAULT,
  	},
  #endif
  #if CONFIG_SERIAL_SAMSUNG_UARTS > 5
  	[5] = {
  		.hwport		= 5,
  		.flags		= 0,
  		.ucon		= SMDK6450_UCON_DEFAULT,
  		.ulcon		= SMDK6450_ULCON_DEFAULT,
  		.ufcon		= SMDK6450_UFCON_DEFAULT,
  	},
  #endif
  };
  
  static int smdk6450_backlight_init(struct device *dev)
  {
  	int ret;
  
  	ret = gpio_request(S5P6450_GPF(15), "Backlight");
  	if (ret) {
  		printk(KERN_ERR "failed to request GPF for PWM-OUT1\n");
  		return ret;
  	}
  
  	/* Configure GPIO pin with S5P6450_GPF15_PWM_TOUT1 */
  	s3c_gpio_cfgpin(S5P6450_GPF(15), S3C_GPIO_SFN(2));
  
  	return 0;
  }
  
  static void smdk6450_backlight_exit(struct device *dev)
  {
  	s3c_gpio_cfgpin(S5P6450_GPF(15), S3C_GPIO_OUTPUT);
  	gpio_free(S5P6450_GPF(15));
  }
  
  static struct platform_pwm_backlight_data smdk6450_backlight_data = {
  	.pwm_id		= 1,
  	.max_brightness	= 255,
  	.dft_brightness	= 255,
  	.pwm_period_ns	= 78770,
  	.init		= smdk6450_backlight_init,
  	.exit		= smdk6450_backlight_exit,
  };
  
  static struct platform_device smdk6450_backlight_device = {
  	.name		= "pwm-backlight",
  	.dev		= {
  		.parent		= &s3c_device_timer[1].dev,
  		.platform_data	= &smdk6450_backlight_data,
  	},
  };
  
  static struct platform_device *smdk6450_devices[] __initdata = {
  	&s3c_device_adc,
  	&s3c_device_rtc,
  	&s3c_device_i2c0,
  	&s3c_device_i2c1,
  	&s3c_device_ts,
  	&s3c_device_wdt,
  	&samsung_asoc_dma,
  	&s5p6450_device_iis0,
  	&s3c_device_timer[1],
  	&smdk6450_backlight_device,
  	/* s5p6450_device_spi0 will be added */
  };
  
  static struct s3c2410_platform_i2c s5p6450_i2c0_data __initdata = {
  	.flags		= 0,
  	.slave_addr	= 0x10,
  	.frequency	= 100*1000,
  	.sda_delay	= 100,
  	.cfg_gpio	= s5p6450_i2c0_cfg_gpio,
  };
  
  static struct s3c2410_platform_i2c s5p6450_i2c1_data __initdata = {
  	.flags		= 0,
  	.bus_num	= 1,
  	.slave_addr	= 0x10,
  	.frequency	= 100*1000,
  	.sda_delay	= 100,
  	.cfg_gpio	= s5p6450_i2c1_cfg_gpio,
  };
  
  static struct i2c_board_info smdk6450_i2c_devs0[] __initdata = {
  	{ I2C_BOARD_INFO("wm8580", 0x1b), },
  	{ I2C_BOARD_INFO("24c08", 0x50), },	/* Samsung KS24C080C EEPROM */
  };
  
  static struct i2c_board_info smdk6450_i2c_devs1[] __initdata = {
  	{ I2C_BOARD_INFO("24c128", 0x57), },/* Samsung S524AD0XD1 EEPROM */
  };
  
  static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = {
  	.delay			= 10000,
  	.presc			= 49,
  	.oversampling_shift	= 2,
  };
  
  static void __init smdk6450_map_io(void)
  {
  	s5p_init_io(NULL, 0, S5P64X0_SYS_ID);
  	s3c24xx_init_clocks(19200000);
  	s3c24xx_init_uarts(smdk6450_uartcfgs, ARRAY_SIZE(smdk6450_uartcfgs));
  	s5p_set_timer_source(S5P_PWM3, S5P_PWM4);
  }
  
  static void __init smdk6450_machine_init(void)
  {
  	s3c24xx_ts_set_platdata(&s3c_ts_platform);
  
  	s3c_i2c0_set_platdata(&s5p6450_i2c0_data);
  	s3c_i2c1_set_platdata(&s5p6450_i2c1_data);
  	i2c_register_board_info(0, smdk6450_i2c_devs0,
  			ARRAY_SIZE(smdk6450_i2c_devs0));
  	i2c_register_board_info(1, smdk6450_i2c_devs1,
  			ARRAY_SIZE(smdk6450_i2c_devs1));
  
  	platform_add_devices(smdk6450_devices, ARRAY_SIZE(smdk6450_devices));
  }
  
  MACHINE_START(SMDK6450, "SMDK6450")
  	/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
  	.boot_params	= S5P64X0_PA_SDRAM + 0x100,
  
  	.init_irq	= s5p6450_init_irq,
  	.map_io		= smdk6450_map_io,
  	.init_machine	= smdk6450_machine_init,
  	.timer		= &s5p_timer,
  MACHINE_END
  