/*
   * linux/arch/arm/mach-pxa/cm-x270.c
   *
   * Copyright (C) 2007, 2008 CompuLab, Ltd.
   * Mike Rapoport <mike@compulab.co.il>
   *
   * 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/platform_device.h>

  #include <linux/irq.h>
  #include <linux/gpio.h>

  #include <linux/delay.h>

  
  #include <linux/rtc-v3020.h>
  #include <video/mbxfb.h>

  #include <linux/spi/spi.h>

  #include <linux/spi/pxa2xx_spi.h>

  #include <linux/spi/libertas_spi.h>

  #include <mach/pxa27x.h>

  #include <mach/ohci.h>
  #include <mach/mmc.h>
  
  #include "generic.h"
  
  /* physical address if local-bus attached devices */
  #define RTC_PHYS_BASE		(PXA_CS1_PHYS + (5 << 22))
  
  /* GPIO IRQ usage */
  #define GPIO83_MMC_IRQ		(83)

  #define CMX270_MMC_IRQ		PXA_GPIO_TO_IRQ(GPIO83_MMC_IRQ)

  
  /* MMC power enable */
  #define GPIO105_MMC_POWER	(105)

  /* WLAN GPIOS */
  #define GPIO19_WLAN_STRAP	(19)
  #define GPIO102_WLAN_RST	(102)

  static unsigned long cmx270_pin_config[] = {
  	/* AC'97 */
  	GPIO28_AC97_BITCLK,
  	GPIO29_AC97_SDATA_IN_0,
  	GPIO30_AC97_SDATA_OUT,
  	GPIO31_AC97_SYNC,
  	GPIO98_AC97_SYSCLK,
  	GPIO113_AC97_nRESET,
  
  	/* BTUART */
  	GPIO42_BTUART_RXD,
  	GPIO43_BTUART_TXD,
  	GPIO44_BTUART_CTS,
  	GPIO45_BTUART_RTS,
  
  	/* STUART */
  	GPIO46_STUART_RXD,
  	GPIO47_STUART_TXD,
  
  	/* MCI controller */
  	GPIO32_MMC_CLK,
  	GPIO112_MMC_CMD,
  	GPIO92_MMC_DAT_0,
  	GPIO109_MMC_DAT_1,
  	GPIO110_MMC_DAT_2,
  	GPIO111_MMC_DAT_3,
  
  	/* LCD */

  	GPIOxx_LCD_TFT_16BPP,

  
  	/* I2C */
  	GPIO117_I2C_SCL,
  	GPIO118_I2C_SDA,
  
  	/* SSP1 */
  	GPIO23_SSP1_SCLK,
  	GPIO24_SSP1_SFRM,
  	GPIO25_SSP1_TXD,
  	GPIO26_SSP1_RXD,
  
  	/* SSP2 */

  	GPIO19_GPIO,	/* SSP2 clock is used as GPIO for Libertas pin-strap */
  	GPIO14_GPIO,

  	GPIO87_SSP2_TXD,
  	GPIO88_SSP2_RXD,
  
  	/* PC Card */
  	GPIO48_nPOE,
  	GPIO49_nPWE,
  	GPIO50_nPIOR,
  	GPIO51_nPIOW,
  	GPIO85_nPCE_1,
  	GPIO54_nPCE_2,
  	GPIO55_nPREG,
  	GPIO56_nPWAIT,
  	GPIO57_nIOIS16,
  
  	/* SDRAM and local bus */
  	GPIO15_nCS_1,
  	GPIO78_nCS_2,
  	GPIO79_nCS_3,
  	GPIO80_nCS_4,
  	GPIO33_nCS_5,
  	GPIO49_nPWE,
  	GPIO18_RDY,
  
  	/* GPIO */
  	GPIO0_GPIO	| WAKEUP_ON_EDGE_BOTH,
  	GPIO105_GPIO	| MFP_LPM_DRIVE_HIGH,	/* MMC/SD power */
  	GPIO53_GPIO,				/* PC card reset */

  	GPIO102_GPIO,				/* WLAN reset */

  
  	/* NAND controls */
  	GPIO11_GPIO	| MFP_LPM_DRIVE_HIGH,	/* NAND CE# */
  	GPIO89_GPIO,				/* NAND Ready/Busy */
  
  	/* interrupts */
  	GPIO10_GPIO,	/* DM9000 interrupt */
  	GPIO83_GPIO,	/* MMC card detect */

  	GPIO95_GPIO,	/* WLAN interrupt */

  };
  
  /* V3020 RTC */
  #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
  static struct resource cmx270_v3020_resource[] = {
  	[0] = {
  		.start = RTC_PHYS_BASE,
  		.end   = RTC_PHYS_BASE + 4,
  		.flags = IORESOURCE_MEM,
  	},
  };
  
  struct v3020_platform_data cmx270_v3020_pdata = {
  	.leftshift = 16,
  };
  
  static struct platform_device cmx270_rtc_device = {
  	.name		= "v3020",
  	.num_resources	= ARRAY_SIZE(cmx270_v3020_resource),
  	.resource	= cmx270_v3020_resource,
  	.id		= -1,
  	.dev		= {
  		.platform_data = &cmx270_v3020_pdata,
  	}
  };
  
  static void __init cmx270_init_rtc(void)
  {
  	platform_device_register(&cmx270_rtc_device);
  }
  #else

  static inline void cmx270_init_rtc(void) {}

  #endif
  
  /* 2700G graphics */
  #if defined(CONFIG_FB_MBX) || defined(CONFIG_FB_MBX_MODULE)
  static u64 fb_dma_mask = ~(u64)0;
  
  static struct resource cmx270_2700G_resource[] = {
  	/* frame buffer memory including ODFB and External SDRAM */
  	[0] = {
  		.start = PXA_CS2_PHYS,
  		.end   = PXA_CS2_PHYS + 0x01ffffff,
  		.flags = IORESOURCE_MEM,
  	},
  	/* Marathon registers */
  	[1] = {
  		.start = PXA_CS2_PHYS + 0x03fe0000,
  		.end   = PXA_CS2_PHYS + 0x03ffffff,
  		.flags = IORESOURCE_MEM,
  	},
  };

  static unsigned long cmx270_marathon_on[] = {
  	GPIO58_GPIO,
  	GPIO59_GPIO,
  	GPIO60_GPIO,
  	GPIO61_GPIO,
  	GPIO62_GPIO,
  	GPIO63_GPIO,
  	GPIO64_GPIO,
  	GPIO65_GPIO,
  	GPIO66_GPIO,
  	GPIO67_GPIO,
  	GPIO68_GPIO,
  	GPIO69_GPIO,
  	GPIO70_GPIO,
  	GPIO71_GPIO,
  	GPIO72_GPIO,
  	GPIO73_GPIO,
  	GPIO74_GPIO,
  	GPIO75_GPIO,
  	GPIO76_GPIO,
  	GPIO77_GPIO,
  };
  
  static unsigned long cmx270_marathon_off[] = {
  	GPIOxx_LCD_TFT_16BPP,
  };

  
  static int cmx270_marathon_probe(struct fb_info *fb)
  {

  	int gpio, err;
  
  	for (gpio = 58; gpio <= 77; gpio++) {
  		err = gpio_request(gpio, "LCD");
  		if (err)
  			return err;
  		gpio_direction_input(gpio);
  	}
  
  	pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_marathon_on));

  	return 0;
  }
  
  static int cmx270_marathon_remove(struct fb_info *fb)
  {

  	int gpio;
  
  	pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_marathon_off));
  
  	for (gpio = 58; gpio <= 77; gpio++)
  		gpio_free(gpio);

  	return 0;
  }
  
  static struct mbxfb_platform_data cmx270_2700G_data = {
  	.xres = {
  		.min = 240,
  		.max = 1200,
  		.defval = 640,
  	},
  	.yres = {
  		.min = 240,
  		.max = 1200,
  		.defval = 480,
  	},
  	.bpp = {
  		.min = 16,
  		.max = 32,
  		.defval = 16,
  	},
  	.memsize = 8*1024*1024,
  	.probe = cmx270_marathon_probe,
  	.remove = cmx270_marathon_remove,
  };
  
  static struct platform_device cmx270_2700G = {
  	.name		= "mbx-fb",
  	.dev		= {
  		.platform_data	= &cmx270_2700G_data,
  		.dma_mask	= &fb_dma_mask,
  		.coherent_dma_mask = 0xffffffff,
  	},
  	.num_resources	= ARRAY_SIZE(cmx270_2700G_resource),
  	.resource	= cmx270_2700G_resource,
  	.id		= -1,
  };
  
  static void __init cmx270_init_2700G(void)
  {
  	platform_device_register(&cmx270_2700G);
  }
  #else
  static inline void cmx270_init_2700G(void) {}
  #endif
  
  /* PXA27x OHCI controller setup */
  #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)

  static struct pxaohci_platform_data cmx270_ohci_platform_data = {
  	.port_mode	= PMM_PERPORT_MODE,

  	.flags		= ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,

  };
  
  static void __init cmx270_init_ohci(void)
  {
  	pxa_set_ohci_info(&cmx270_ohci_platform_data);
  }
  #else
  static inline void cmx270_init_ohci(void) {}
  #endif
  
  #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)

  static struct pxamci_platform_data cmx270_mci_platform_data = {

  	.ocr_mask		= MMC_VDD_32_33|MMC_VDD_33_34,
  	.gpio_card_detect	= GPIO83_MMC_IRQ,
  	.gpio_card_ro		= -1,
  	.gpio_power		= GPIO105_MMC_POWER,
  	.gpio_power_invert	= 1,

  };
  
  static void __init cmx270_init_mmc(void)
  {
  	pxa_set_mci_info(&cmx270_mci_platform_data);
  }
  #else
  static inline void cmx270_init_mmc(void) {}
  #endif

  #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
  static struct pxa2xx_spi_master cm_x270_spi_info = {
  	.num_chipselect	= 1,
  	.enable_dma	= 1,
  };
  
  static struct pxa2xx_spi_chip cm_x270_libertas_chip = {
  	.rx_threshold	= 1,
  	.tx_threshold	= 1,
  	.timeout	= 1000,
  	.gpio_cs	= 14,
  };
  
  static unsigned long cm_x270_libertas_pin_config[] = {
  	/* SSP2 */
  	GPIO19_SSP2_SCLK,
  	GPIO14_GPIO,
  	GPIO87_SSP2_TXD,
  	GPIO88_SSP2_RXD,
  
  };
  
  static int cm_x270_libertas_setup(struct spi_device *spi)
  {
  	int err = gpio_request(GPIO19_WLAN_STRAP, "WLAN STRAP");
  	if (err)
  		return err;
  
  	err = gpio_request(GPIO102_WLAN_RST, "WLAN RST");
  	if (err)
  		goto err_free_strap;
  
  	err = gpio_direction_output(GPIO102_WLAN_RST, 0);
  	if (err)
  		goto err_free_strap;
  	msleep(100);
  
  	err = gpio_direction_output(GPIO19_WLAN_STRAP, 1);
  	if (err)
  		goto err_free_strap;
  	msleep(100);
  
  	pxa2xx_mfp_config(ARRAY_AND_SIZE(cm_x270_libertas_pin_config));
  
  	gpio_set_value(GPIO102_WLAN_RST, 1);
  	msleep(100);
  
  	spi->bits_per_word = 16;
  	spi_setup(spi);
  
  	return 0;
  
  err_free_strap:
  	gpio_free(GPIO19_WLAN_STRAP);
  
  	return err;
  }
  
  static int cm_x270_libertas_teardown(struct spi_device *spi)
  {
  	gpio_set_value(GPIO102_WLAN_RST, 0);
  	gpio_free(GPIO102_WLAN_RST);
  	gpio_free(GPIO19_WLAN_STRAP);
  
  	return 0;
  }
  
  struct libertas_spi_platform_data cm_x270_libertas_pdata = {
  	.use_dummy_writes	= 1,
  	.setup			= cm_x270_libertas_setup,
  	.teardown		= cm_x270_libertas_teardown,
  };
  
  static struct spi_board_info cm_x270_spi_devices[] __initdata = {
  	{
  		.modalias		= "libertas_spi",
  		.max_speed_hz		= 13000000,
  		.bus_num		= 2,

  		.irq			= PXA_GPIO_TO_IRQ(95),

  		.chip_select		= 0,
  		.controller_data	= &cm_x270_libertas_chip,
  		.platform_data		= &cm_x270_libertas_pdata,
  	},
  };
  
  static void __init cmx270_init_spi(void)
  {
  	pxa2xx_set_spi_info(2, &cm_x270_spi_info);
  	spi_register_board_info(ARRAY_AND_SIZE(cm_x270_spi_devices));
  }
  #else
  static inline void cmx270_init_spi(void) {}
  #endif

  void __init cmx270_init(void)
  {
  	pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config));

  #ifdef CONFIG_PM
  	pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
  #endif

  	cmx270_init_rtc();
  	cmx270_init_mmc();
  	cmx270_init_ohci();
  	cmx270_init_2700G();

  	cmx270_init_spi();

  }