text: /*
   * linux/arch/arm/mach-at91/board-cap9adk.c
   *
   *  Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
   *  Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
   *  Copyright (C) 2005 SAN People
   *  Copyright (C) 2007 Atmel Corporation.
   *
   * 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; either version 2 of the License, or
   * (at your option) any later version.
   *
   * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  #include <linux/types.h>
  #include <linux/init.h>
  #include <linux/mm.h>
  #include <linux/module.h>
  #include <linux/platform_device.h>
  #include <linux/spi/spi.h>
  #include <linux/spi/ads7846.h>
  #include <linux/fb.h>
  #include <linux/mtd/physmap.h>
  
  #include <video/atmel_lcdc.h>
  
  #include <mach/hardware.h>
  #include <asm/setup.h>
  #include <asm/mach-types.h>
  
  #include <asm/mach/arch.h>
  #include <asm/mach/map.h>
  
  #include <mach/board.h>
  #include <mach/gpio.h>
  #include <mach/at91cap9_matrix.h>
  #include <mach/at91sam9_smc.h>
  #include <mach/system_rev.h>
  
  #include "sam9_smc.h"
  #include "generic.h"
  
  
  static void __init cap9adk_init_early(void)
  {
  	/* Initialize processor: 12 MHz crystal */
  	at91cap9_initialize(12000000);
  
  	/* Setup the LEDs: USER1 and USER2 LED for cpu/timer... */
  	at91_init_leds(AT91_PIN_PA10, AT91_PIN_PA11);
  	/* ... POWER LED always on */
  	at91_set_gpio_output(AT91_PIN_PC29, 1);
  
  	/* Setup the serial ports and console */
  	at91_register_uart(0, 0, 0);		/* DBGU = ttyS0 */
  	at91_set_serial_console(0);
  }
  
  static void __init cap9adk_init_irq(void)
  {
  	at91cap9_init_interrupts(NULL);
  }
  
  
  /*
   * USB Host port
   */
  static struct at91_usbh_data __initdata cap9adk_usbh_data = {
  	.ports		= 2,
  };
  
  /*
   * USB HS Device port
   */
  static struct usba_platform_data __initdata cap9adk_usba_udc_data = {
  	.vbus_pin	= AT91_PIN_PB31,
  };
  
  /*
   * ADS7846 Touchscreen
   */
  #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  static int ads7843_pendown_state(void)
  {
  	return !at91_get_gpio_value(AT91_PIN_PC4);	/* Touchscreen PENIRQ */
  }
  
  static struct ads7846_platform_data ads_info = {
  	.model			= 7843,
  	.x_min			= 150,
  	.x_max			= 3830,
  	.y_min			= 190,
  	.y_max			= 3830,
  	.vref_delay_usecs	= 100,
  	.x_plate_ohms		= 450,
  	.y_plate_ohms		= 250,
  	.pressure_max		= 15000,
  	.debounce_max		= 1,
  	.debounce_rep		= 0,
  	.debounce_tol		= (~0),
  	.get_pendown_state	= ads7843_pendown_state,
  };
  
  static void __init cap9adk_add_device_ts(void)
  {
  	at91_set_gpio_input(AT91_PIN_PC4, 1);	/* Touchscreen PENIRQ */
  	at91_set_gpio_input(AT91_PIN_PC5, 1);	/* Touchscreen BUSY */
  }
  #else
  static void __init cap9adk_add_device_ts(void) {}
  #endif
  
  
  /*
   * SPI devices.
   */
  static struct spi_board_info cap9adk_spi_devices[] = {
  #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
  	{	/* DataFlash card */
  		.modalias	= "mtd_dataflash",
  		.chip_select	= 0,
  		.max_speed_hz	= 15 * 1000 * 1000,
  		.bus_num	= 0,
  	},
  #endif
  #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  	{
  		.modalias	= "ads7846",
  		.chip_select	= 3,		/* can be 2 or 3, depending on J2 jumper */
  		.max_speed_hz	= 125000 * 26,	/* (max sample rate @ 3V) * (cmd + data + overhead) */
  		.bus_num	= 0,
  		.platform_data	= &ads_info,
  		.irq		= AT91_PIN_PC4,
  	},
  #endif
  };
  
  
  /*
   * MCI (SD/MMC)
   */
  static struct at91_mmc_data __initdata cap9adk_mmc_data = {
  	.wire4		= 1,
  //	.det_pin	= ... not connected
  //	.wp_pin		= ... not connected
  //	.vcc_pin	= ... not connected
  };
  
  
  /*
   * MACB Ethernet device
   */
  static struct at91_eth_data __initdata cap9adk_macb_data = {
  	.is_rmii	= 1,
  };
  
  
  /*
   * NAND flash
   */
  static struct mtd_partition __initdata cap9adk_nand_partitions[] = {
  	{
  		.name	= "NAND partition",
  		.offset	= 0,
  		.size	= MTDPART_SIZ_FULL,
  	},
  };
  
  static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
  {
  	*num_partitions = ARRAY_SIZE(cap9adk_nand_partitions);
  	return cap9adk_nand_partitions;
  }
  
  static struct atmel_nand_data __initdata cap9adk_nand_data = {
  	.ale		= 21,
  	.cle		= 22,
  //	.det_pin	= ... not connected
  //	.rdy_pin	= ... not connected
  	.enable_pin	= AT91_PIN_PD15,
  	.partition_info	= nand_partitions,
  };
  
  static struct sam9_smc_config __initdata cap9adk_nand_smc_config = {
  	.ncs_read_setup		= 1,
  	.nrd_setup		= 2,
  	.ncs_write_setup	= 1,
  	.nwe_setup		= 2,
  
  	.ncs_read_pulse		= 6,
  	.nrd_pulse		= 4,
  	.ncs_write_pulse	= 6,
  	.nwe_pulse		= 4,
  
  	.read_cycle		= 8,
  	.write_cycle		= 8,
  
  	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
  	.tdf_cycles		= 1,
  };
  
  static void __init cap9adk_add_device_nand(void)
  {
  	unsigned long csa;
  
  	csa = at91_sys_read(AT91_MATRIX_EBICSA);
  	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
  
  	cap9adk_nand_data.bus_width_16 = board_have_nand_16bit();
  	/* setup bus-width (8 or 16) */
  	if (cap9adk_nand_data.bus_width_16)
  		cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_16;
  	else
  		cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_8;
  
  	/* configure chip-select 3 (NAND) */
  	sam9_smc_configure(3, &cap9adk_nand_smc_config);
  
  	at91_add_device_nand(&cap9adk_nand_data);
  }
  
  
  /*
   * NOR flash
   */
  static struct mtd_partition cap9adk_nor_partitions[] = {
  	{
  		.name		= "NOR partition",
  		.offset		= 0,
  		.size		= MTDPART_SIZ_FULL,
  	},
  };
  
  static struct physmap_flash_data cap9adk_nor_data = {
  	.width		= 2,
  	.parts		= cap9adk_nor_partitions,
  	.nr_parts	= ARRAY_SIZE(cap9adk_nor_partitions),
  };
  
  #define NOR_BASE	AT91_CHIPSELECT_0
  #define NOR_SIZE	SZ_8M
  
  static struct resource nor_flash_resources[] = {
  	{
  		.start	= NOR_BASE,
  		.end	= NOR_BASE + NOR_SIZE - 1,
  		.flags	= IORESOURCE_MEM,
  	}
  };
  
  static struct platform_device cap9adk_nor_flash = {
  	.name		= "physmap-flash",
  	.id		= 0,
  	.dev		= {
  				.platform_data	= &cap9adk_nor_data,
  	},
  	.resource	= nor_flash_resources,
  	.num_resources	= ARRAY_SIZE(nor_flash_resources),
  };
  
  static struct sam9_smc_config __initdata cap9adk_nor_smc_config = {
  	.ncs_read_setup		= 2,
  	.nrd_setup		= 4,
  	.ncs_write_setup	= 2,
  	.nwe_setup		= 4,
  
  	.ncs_read_pulse		= 10,
  	.nrd_pulse		= 8,
  	.ncs_write_pulse	= 10,
  	.nwe_pulse		= 8,
  
  	.read_cycle		= 16,
  	.write_cycle		= 16,
  
  	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
  	.tdf_cycles		= 1,
  };
  
  static __init void cap9adk_add_device_nor(void)
  {
  	unsigned long csa;
  
  	csa = at91_sys_read(AT91_MATRIX_EBICSA);
  	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
  
  	/* configure chip-select 0 (NOR) */
  	sam9_smc_configure(0, &cap9adk_nor_smc_config);
  
  	platform_device_register(&cap9adk_nor_flash);
  }
  
  
  /*
   * LCD Controller
   */
  #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
  static struct fb_videomode at91_tft_vga_modes[] = {
  	{
  	        .name           = "TX09D50VM1CCA @ 60",
  		.refresh	= 60,
  		.xres		= 240,		.yres		= 320,
  		.pixclock	= KHZ2PICOS(4965),
  
  		.left_margin	= 1,		.right_margin	= 33,
  		.upper_margin	= 1,		.lower_margin	= 0,
  		.hsync_len	= 5,		.vsync_len	= 1,
  
  		.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
  		.vmode		= FB_VMODE_NONINTERLACED,
  	},
  };
  
  static struct fb_monspecs at91fb_default_monspecs = {
  	.manufacturer	= "HIT",
  	.monitor        = "TX09D70VM1CCA",
  
  	.modedb		= at91_tft_vga_modes,
  	.modedb_len	= ARRAY_SIZE(at91_tft_vga_modes),
  	.hfmin		= 15000,
  	.hfmax		= 64000,
  	.vfmin		= 50,
  	.vfmax		= 150,
  };
  
  #define AT91CAP9_DEFAULT_LCDCON2 	(ATMEL_LCDC_MEMOR_LITTLE \
  					| ATMEL_LCDC_DISTYPE_TFT    \
  					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
  
  static void at91_lcdc_power_control(int on)
  {
  	if (on)
  		at91_set_gpio_value(AT91_PIN_PC0, 0);	/* power up */
  	else
  		at91_set_gpio_value(AT91_PIN_PC0, 1);	/* power down */
  }
  
  /* Driver datas */
  static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data = {
  	.default_bpp			= 16,
  	.default_dmacon			= ATMEL_LCDC_DMAEN,
  	.default_lcdcon2		= AT91CAP9_DEFAULT_LCDCON2,
  	.default_monspecs		= &at91fb_default_monspecs,
  	.atmel_lcdfb_power_control	= at91_lcdc_power_control,
  	.guard_time			= 1,
  };
  
  #else
  static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data;
  #endif
  
  
  /*
   * AC97
   */
  static struct ac97c_platform_data cap9adk_ac97_data = {
  //	.reset_pin	= ... not connected
  };
  
  
  static void __init cap9adk_board_init(void)
  {
  	/* Serial */
  	at91_add_device_serial();
  	/* USB Host */
  	at91_add_device_usbh(&cap9adk_usbh_data);
  	/* USB HS */
  	at91_add_device_usba(&cap9adk_usba_udc_data);
  	/* SPI */
  	at91_add_device_spi(cap9adk_spi_devices, ARRAY_SIZE(cap9adk_spi_devices));
  	/* Touchscreen */
  	cap9adk_add_device_ts();
  	/* MMC */
  	at91_add_device_mmc(1, &cap9adk_mmc_data);
  	/* Ethernet */
  	at91_add_device_eth(&cap9adk_macb_data);
  	/* NAND */
  	cap9adk_add_device_nand();
  	/* NOR Flash */
  	cap9adk_add_device_nor();
  	/* I2C */
  	at91_add_device_i2c(NULL, 0);
  	/* LCD Controller */
  	at91_add_device_lcdc(&cap9adk_lcdc_data);
  	/* AC97 */
  	at91_add_device_ac97(&cap9adk_ac97_data);
  }
  
  MACHINE_START(AT91CAP9ADK, "Atmel AT91CAP9A-DK")
  	/* Maintainer: Stelian Pop <stelian.pop@leadtechdesign.com> */
  	.timer		= &at91sam926x_timer,
  	.map_io		= at91cap9_map_io,
  	.init_early	= cap9adk_init_early,
  	.init_irq	= cap9adk_init_irq,
  	.init_machine	= cap9adk_board_init,
  MACHINE_END
  