text: /*
   *  linux/arch/arm/mach-pxa/trizeps4.c
   *
   *  Support for the Keith und Koep Trizeps4 Module Platform.
   *
   *  Author:	Jürgen Schindele
   *  Created:	20 02, 2006
   *  Copyright:	Jürgen Schindele
   *
   *  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/init.h>
  #include <linux/kernel.h>
  #include <linux/platform_device.h>
  #include <linux/interrupt.h>
  #include <linux/export.h>
  #include <linux/sched.h>
  #include <linux/bitops.h>
  #include <linux/fb.h>
  #include <linux/ioport.h>
  #include <linux/delay.h>
  #include <linux/gpio.h>
  #include <linux/dm9000.h>
  #include <linux/mtd/physmap.h>
  #include <linux/mtd/partitions.h>
  #include <linux/i2c/pxa-i2c.h>
  
  #include <asm/types.h>
  #include <asm/setup.h>
  #include <asm/memory.h>
  #include <asm/mach-types.h>
  #include <asm/irq.h>
  #include <asm/sizes.h>
  
  #include <asm/mach/arch.h>
  #include <asm/mach/map.h>
  #include <asm/mach/irq.h>
  #include <asm/mach/flash.h>
  
  #include <mach/pxa27x.h>
  #include <mach/trizeps4.h>
  #include <mach/audio.h>
  #include <mach/pxafb.h>
  #include <mach/mmc.h>
  #include <mach/irda.h>
  #include <mach/ohci.h>
  #include <mach/smemc.h>
  
  #include "generic.h"
  #include "devices.h"
  
  /*	comment out the following line if you want to use the
   *	Standard UART from PXA for serial / irda transmission
   *	and acivate it if you have status leds connected */
  #define STATUS_LEDS_ON_STUART_PINS 1
  
  /*****************************************************************************
   * MultiFunctionPins of CPU
   *****************************************************************************/
  static unsigned long trizeps4_pin_config[] __initdata = {
  	/* Chip Selects */
  	GPIO15_nCS_1,		/* DiskOnChip CS */
  	GPIO93_GPIO,		/* TRIZEPS4_DOC_IRQ */
  	GPIO94_GPIO,		/* DOC lock */
  
  	GPIO78_nCS_2,		/* DM9000 CS */
  	GPIO101_GPIO,		/* TRIZEPS4_ETH_IRQ */
  
  	GPIO79_nCS_3,		/* Logic CS */
  	GPIO0_GPIO | WAKEUP_ON_EDGE_RISE,	/* Logic irq */
  
  	/* AC97 */
  	GPIO28_AC97_BITCLK,
  	GPIO29_AC97_SDATA_IN_0,
  	GPIO30_AC97_SDATA_OUT,
  	GPIO31_AC97_SYNC,
  
  	/* LCD - 16bpp Active TFT */
  	GPIOxx_LCD_TFT_16BPP,
  
  	/* UART */
  	GPIO9_FFUART_CTS,
  	GPIO10_FFUART_DCD,
  	GPIO16_FFUART_TXD,
  	GPIO33_FFUART_DSR,
  	GPIO38_FFUART_RI,
  	GPIO82_FFUART_DTR,
  	GPIO83_FFUART_RTS,
  	GPIO96_FFUART_RXD,
  
  	GPIO42_BTUART_RXD,
  	GPIO43_BTUART_TXD,
  	GPIO44_BTUART_CTS,
  	GPIO45_BTUART_RTS,
  #ifdef STATUS_LEDS_ON_STUART_PINS
  	GPIO46_GPIO,
  	GPIO47_GPIO,
  #else
  	GPIO46_STUART_RXD,
  	GPIO47_STUART_TXD,
  #endif
  	/* PCMCIA */
  	GPIO11_GPIO,			/* TRIZEPS4_CD_IRQ */
  	GPIO13_GPIO,			/* TRIZEPS4_READY_NINT */
  	GPIO48_nPOE,
  	GPIO49_nPWE,
  	GPIO50_nPIOR,
  	GPIO51_nPIOW,
  	GPIO54_nPCE_2,
  	GPIO55_nPREG,
  	GPIO56_nPWAIT,
  	GPIO57_nIOIS16,
  	GPIO102_nPCE_1,
  	GPIO104_PSKTSEL,
  
  	/* MultiMediaCard */
  	GPIO32_MMC_CLK,
  	GPIO92_MMC_DAT_0,
  	GPIO109_MMC_DAT_1,
  	GPIO110_MMC_DAT_2,
  	GPIO111_MMC_DAT_3,
  	GPIO112_MMC_CMD,
  	GPIO12_GPIO,			/* TRIZEPS4_MMC_IRQ */
  
  	/* USB OHCI */
  	GPIO88_USBH1_PWR,		/* USBHPWR1 */
  	GPIO89_USBH1_PEN,		/* USBHPEN1 */
  
  	/* I2C */
  	GPIO117_I2C_SCL,
  	GPIO118_I2C_SDA,
  };
  
  static unsigned long trizeps4wl_pin_config[] __initdata = {
  	/* SSP 2 */
  	GPIO14_SSP2_SFRM,
  	GPIO19_SSP2_SCLK,
  	GPIO53_GPIO,			/* TRIZEPS4_SPI_IRQ */
  	GPIO86_SSP2_RXD,
  	GPIO87_SSP2_TXD,
  };
  
  /****************************************************************************
   * ONBOARD FLASH
   ****************************************************************************/
  static struct mtd_partition trizeps4_partitions[] = {
  	{
  		.name =		"Bootloader",
  		.offset =	0x00000000,
  		.size =		0x00040000,
  		.mask_flags =	MTD_WRITEABLE  /* force read-only */
  	}, {
  		.name =		"Backup",
  		.offset =	0x00040000,
  		.size =		0x00040000,
  	}, {
  		.name =		"Image",
  		.offset =	0x00080000,
  		.size =		0x01080000,
  	}, {
  		.name =		"IPSM",
  		.offset =	0x01100000,
  		.size =		0x00e00000,
  	}, {
  		.name =		"Registry",
  		.offset =	0x01f00000,
  		.size =		MTDPART_SIZ_FULL,
  	}
  };
  
  static struct physmap_flash_data trizeps4_flash_data[] = {
  	{
  		.width		= 4,			/* bankwidth in bytes */
  		.parts		= trizeps4_partitions,
  		.nr_parts	= ARRAY_SIZE(trizeps4_partitions)
  	}
  };
  
  static struct resource flash_resource = {
  	.start	= PXA_CS0_PHYS,
  	.end	= PXA_CS0_PHYS + SZ_32M - 1,
  	.flags	= IORESOURCE_MEM,
  };
  
  static struct platform_device flash_device = {
  	.name		= "physmap-flash",
  	.id		= 0,
  	.dev = {
  		.platform_data = trizeps4_flash_data,
  	},
  	.resource = &flash_resource,
  	.num_resources = 1,
  };
  
  /****************************************************************************
   * DAVICOM DM9000 Ethernet
   ****************************************************************************/
  static struct resource dm9000_resources[] = {
  	[0] = {
  		.start	= TRIZEPS4_ETH_PHYS+0x300,
  		.end	= TRIZEPS4_ETH_PHYS+0x400-1,
  		.flags	= IORESOURCE_MEM,
  	},
  	[1] = {
  		.start	= TRIZEPS4_ETH_PHYS+0x8300,
  		.end	= TRIZEPS4_ETH_PHYS+0x8400-1,
  		.flags	= IORESOURCE_MEM,
  	},
  	[2] = {
  		.start	= TRIZEPS4_ETH_IRQ,
  		.end	= TRIZEPS4_ETH_IRQ,
  		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  	},
  };
  
  static struct dm9000_plat_data tri_dm9000_platdata = {
  	.flags		= DM9000_PLATF_32BITONLY,
  };
  
  static struct platform_device dm9000_device = {
  	.name		= "dm9000",
  	.id		= -1,
  	.num_resources	= ARRAY_SIZE(dm9000_resources),
  	.resource	= dm9000_resources,
  	.dev		= {
  		.platform_data = &tri_dm9000_platdata,
  	}
  };
  
  /****************************************************************************
   * LED's on GPIO pins of PXA
   ****************************************************************************/
  static struct gpio_led trizeps4_led[] = {
  #ifdef STATUS_LEDS_ON_STUART_PINS
  	{
  		.name = "led0:orange:heartbeat",	/* */
  		.default_trigger = "heartbeat",
  		.gpio = GPIO_HEARTBEAT_LED,
  		.active_low = 1,
  	},
  	{
  		.name = "led1:yellow:cpubusy",		/* */
  		.default_trigger = "cpu-busy",
  		.gpio = GPIO_SYS_BUSY_LED,
  		.active_low = 1,
  	},
  #endif
  };
  
  static struct gpio_led_platform_data trizeps4_led_data = {
  	.leds		= trizeps4_led,
  	.num_leds	= ARRAY_SIZE(trizeps4_led),
  };
  
  static struct platform_device leds_devices = {
  	.name		= "leds-gpio",
  	.id		= -1,
  	.dev		= {
  		.platform_data	= &trizeps4_led_data,
  	},
  };
  
  static struct platform_device *trizeps4_devices[] __initdata = {
  	&flash_device,
  	&dm9000_device,
  	&leds_devices,
  };
  
  static struct platform_device *trizeps4wl_devices[] __initdata = {
  	&flash_device,
  	&leds_devices,
  };
  
  static short trizeps_conxs_bcr;
  
  /* PCCARD power switching supports only 3,3V */
  void board_pcmcia_power(int power)
  {
  	if (power) {
  		/* switch power on, put in reset and enable buffers */
  		trizeps_conxs_bcr |= power;
  		trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
  		trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN;
  		BCR_writew(trizeps_conxs_bcr);
  		/* wait a little */
  		udelay(2000);
  		/* take reset away */
  		trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET;
  		BCR_writew(trizeps_conxs_bcr);
  		udelay(2000);
  	} else {
  		/* put in reset */
  		trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
  		BCR_writew(trizeps_conxs_bcr);
  		udelay(1000);
  		/* switch power off */
  		trizeps_conxs_bcr &= ~0xf;
  		BCR_writew(trizeps_conxs_bcr);
  	}
  	pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff",
  			trizeps_conxs_bcr);
  }
  EXPORT_SYMBOL(board_pcmcia_power);
  
  /* backlight power switching for LCD panel */
  static void board_backlight_power(int on)
  {
  	if (on)
  		trizeps_conxs_bcr |= ConXS_BCR_L_DISP;
  	else
  		trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP;
  
  	pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff",
  			trizeps_conxs_bcr);
  	BCR_writew(trizeps_conxs_bcr);
  }
  
  /* a I2C based RTC is known on CONXS board */
  static struct i2c_board_info trizeps4_i2c_devices[] __initdata = {
  	{ I2C_BOARD_INFO("rtc-pcf8593", 0x51) }
  };
  
  /****************************************************************************
   * MMC card slot external to module
   ****************************************************************************/
  static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int,
  		void *data)
  {
  	int err;
  
  	err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
  		IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_SAMPLE_RANDOM,
  		"MMC card detect", data);
  	if (err) {
  		printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request"
  						"MMC card detect IRQ\n");
  		return -1;
  	}
  	return 0;
  }
  
  static void trizeps4_mci_exit(struct device *dev, void *data)
  {
  	free_irq(TRIZEPS4_MMC_IRQ, data);
  }
  
  static struct pxamci_platform_data trizeps4_mci_platform_data = {
  	.ocr_mask	= MMC_VDD_32_33|MMC_VDD_33_34,
  	.detect_delay_ms= 10,
  	.init 		= trizeps4_mci_init,
  	.exit		= trizeps4_mci_exit,
  	.get_ro		= NULL,	/* write-protection not supported */
  	.setpower 	= NULL,	/* power-switching not supported */
  	.gpio_card_detect = -1,
  	.gpio_card_ro	= -1,
  	.gpio_power	= -1,
  };
  
  /****************************************************************************
   * IRDA mode switching on stuart
   ****************************************************************************/
  #ifndef STATUS_LEDS_ON_STUART_PINS
  static short trizeps_conxs_ircr;
  
  static int trizeps4_irda_startup(struct device *dev)
  {
  	trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
  	IRCR_writew(trizeps_conxs_ircr);
  	return 0;
  }
  
  static void trizeps4_irda_shutdown(struct device *dev)
  {
  	trizeps_conxs_ircr |= ConXS_IRCR_SD;
  	IRCR_writew(trizeps_conxs_ircr);
  }
  
  static void trizeps4_irda_transceiver_mode(struct device *dev, int mode)
  {
  	unsigned long flags;
  
  	local_irq_save(flags);
  	/* Switch mode */
  	if (mode & IR_SIRMODE)
  		trizeps_conxs_ircr &= ~ConXS_IRCR_MODE;	/* Slow mode */
  	else if (mode & IR_FIRMODE)
  		trizeps_conxs_ircr |= ConXS_IRCR_MODE;	/* Fast mode */
  
  	/* Switch power */
  	if (mode & IR_OFF)
  		trizeps_conxs_ircr |= ConXS_IRCR_SD;
  	else
  		trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
  
  	IRCR_writew(trizeps_conxs_ircr);
  	local_irq_restore(flags);
  
  	pxa2xx_transceiver_mode(dev, mode);
  }
  
  static struct pxaficp_platform_data trizeps4_ficp_platform_data = {
  	.gpio_pwdown		= -1,
  	.transceiver_cap	= IR_SIRMODE | IR_FIRMODE | IR_OFF,
  	.transceiver_mode	= trizeps4_irda_transceiver_mode,
  	.startup		= trizeps4_irda_startup,
  	.shutdown		= trizeps4_irda_shutdown,
  };
  #endif
  
  /****************************************************************************
   * OHCI USB port
   ****************************************************************************/
  static struct pxaohci_platform_data trizeps4_ohci_platform_data = {
  	.port_mode	= PMM_PERPORT_MODE,
  	.flags		= ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
  };
  
  static struct map_desc trizeps4_io_desc[] __initdata = {
  	{ 	/* ConXS CFSR */
  		.virtual	= TRIZEPS4_CFSR_VIRT,
  		.pfn		= __phys_to_pfn(TRIZEPS4_CFSR_PHYS),
  		.length		= 0x00001000,
  		.type		= MT_DEVICE
  	},
  	{	/* ConXS BCR */
  		.virtual	= TRIZEPS4_BOCR_VIRT,
  		.pfn		= __phys_to_pfn(TRIZEPS4_BOCR_PHYS),
  		.length		= 0x00001000,
  		.type		= MT_DEVICE
  	},
  	{ 	/* ConXS IRCR */
  		.virtual	= TRIZEPS4_IRCR_VIRT,
  		.pfn		= __phys_to_pfn(TRIZEPS4_IRCR_PHYS),
  		.length		= 0x00001000,
  		.type		= MT_DEVICE
  	},
  	{	/* ConXS DCR */
  		.virtual	= TRIZEPS4_DICR_VIRT,
  		.pfn		= __phys_to_pfn(TRIZEPS4_DICR_PHYS),
  		.length		= 0x00001000,
  		.type		= MT_DEVICE
  	},
  	{	/* ConXS UPSR */
  		.virtual	= TRIZEPS4_UPSR_VIRT,
  		.pfn		= __phys_to_pfn(TRIZEPS4_UPSR_PHYS),
  		.length		= 0x00001000,
  		.type		= MT_DEVICE
  	}
  };
  
  static struct pxafb_mode_info sharp_lcd_mode = {
  	.pixclock	= 78000,
  	.xres		= 640,
  	.yres		= 480,
  	.bpp		= 8,
  	.hsync_len	= 4,
  	.left_margin	= 4,
  	.right_margin	= 4,
  	.vsync_len	= 2,
  	.upper_margin	= 0,
  	.lower_margin	= 0,
  	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
  	.cmap_greyscale	= 0,
  };
  
  static struct pxafb_mach_info sharp_lcd = {
  	.modes		= &sharp_lcd_mode,
  	.num_modes	= 1,
  	.lcd_conn	= LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL,
  	.cmap_inverse	= 0,
  	.cmap_static	= 0,
  	.pxafb_backlight_power = board_backlight_power,
  };
  
  static struct pxafb_mode_info toshiba_lcd_mode = {
  	.pixclock	= 39720,
  	.xres		= 640,
  	.yres		= 480,
  	.bpp		= 8,
  	.hsync_len	= 63,
  	.left_margin	= 12,
  	.right_margin	= 12,
  	.vsync_len	= 4,
  	.upper_margin	= 32,
  	.lower_margin	= 10,
  	.sync		= 0,
  	.cmap_greyscale	= 0,
  };
  
  static struct pxafb_mach_info toshiba_lcd = {
  	.modes		= &toshiba_lcd_mode,
  	.num_modes	= 1,
  	.lcd_conn	= (LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL),
  	.cmap_inverse	= 0,
  	.cmap_static	= 0,
  	.pxafb_backlight_power = board_backlight_power,
  };
  
  static void __init trizeps4_init(void)
  {
  	pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4_pin_config));
  	if (machine_is_trizeps4wl()) {
  		pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4wl_pin_config));
  		platform_add_devices(trizeps4wl_devices,
  					ARRAY_SIZE(trizeps4wl_devices));
  	} else {
  		platform_add_devices(trizeps4_devices,
  					ARRAY_SIZE(trizeps4_devices));
  	}
  
  	pxa_set_ffuart_info(NULL);
  	pxa_set_btuart_info(NULL);
  	pxa_set_stuart_info(NULL);
  
  	if (0)	/* dont know how to determine LCD */
  		pxa_set_fb_info(NULL, &sharp_lcd);
  	else
  		pxa_set_fb_info(NULL, &toshiba_lcd);
  
  	pxa_set_mci_info(&trizeps4_mci_platform_data);
  #ifndef STATUS_LEDS_ON_STUART_PINS
  	pxa_set_ficp_info(&trizeps4_ficp_platform_data);
  #endif
  	pxa_set_ohci_info(&trizeps4_ohci_platform_data);
  	pxa_set_ac97_info(NULL);
  	pxa_set_i2c_info(NULL);
  	i2c_register_board_info(0, trizeps4_i2c_devices,
  					ARRAY_SIZE(trizeps4_i2c_devices));
  
  	/* this is the reset value */
  	trizeps_conxs_bcr = 0x00A0;
  
  	BCR_writew(trizeps_conxs_bcr);
  	board_backlight_power(1);
  }
  
  static void __init trizeps4_map_io(void)
  {
  	pxa27x_map_io();
  	iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc));
  
  	if ((__raw_readl(MSC0) & 0x8) && (__raw_readl(BOOT_DEF) & 0x1)) {
  		/* if flash is 16 bit wide its a Trizeps4 WL */
  		__machine_arch_type = MACH_TYPE_TRIZEPS4WL;
  		trizeps4_flash_data[0].width = 2;
  	} else {
  		/* if flash is 32 bit wide its a Trizeps4 */
  		__machine_arch_type = MACH_TYPE_TRIZEPS4;
  		trizeps4_flash_data[0].width = 4;
  	}
  }
  
  MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
  	/* MAINTAINER("Jürgen Schindele") */
  	.atag_offset	= 0x100,
  	.init_machine	= trizeps4_init,
  	.map_io		= trizeps4_map_io,
  	.init_irq	= pxa27x_init_irq,
  	.handle_irq	= pxa27x_handle_irq,
  	.timer		= &pxa_timer,
  	.restart	= pxa_restart,
  MACHINE_END
  
  MACHINE_START(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module")
  	/* MAINTAINER("Jürgen Schindele") */
  	.atag_offset	= 0x100,
  	.init_machine	= trizeps4_init,
  	.map_io		= trizeps4_map_io,
  	.init_irq	= pxa27x_init_irq,
  	.handle_irq	= pxa27x_handle_irq,
  	.timer		= &pxa_timer,
  	.restart	= pxa_restart,
  MACHINE_END
  