/*
   * linux/arch/arm/mach-pxa/mxm8x10.c
   *
   * Support for the Embedian MXM-8x10 Computer on Module
   *
   * Copyright (C) 2006 Marvell International Ltd.
   * Copyright (C) 2009 Embedian Inc.
   * Copyright (C) 2009 TMT Services & Supplies (Pty) Ltd.
   *
   * 2007-09-04: eric miao <eric.y.miao@gmail.com>
   *             rewrite to align with latest kernel
   *
   * 2010-01-09: Edwin Peer <epeer@tmtservices.co.za>
   * 	       Hennie van der Merwe <hvdmerwe@tmtservices.co.za>
   *             rework for upstream merge
   *
   * 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/serial_8250.h>
  #include <linux/dm9000.h>
  #include <linux/gpio.h>
  #include <linux/i2c/pxa-i2c.h>
  
  #include <linux/platform_data/mtd-nand-pxa3xx.h>
  
  #include <linux/platform_data/video-pxafb.h>
  #include <linux/platform_data/mmc-pxamci.h>
  #include <linux/platform_data/usb-ohci-pxa27x.h>
  #include <mach/pxa320.h>
  
  #include <mach/mxm8x10.h>
  
  #include "devices.h"
  #include "generic.h"
  
  /* GPIO pin definition
  
  External device stuff   - Leave unconfigured for now...
  ---------------------
  GPIO0   -   DREQ    (External DMA Request)
  GPIO3   -   nGCS2   (External Chip Select) Where is nGCS0; nGCS1; nGCS4; nGCS5 ?
  GPIO4   -   nGCS3
  GPIO15  -   EXT_GPIO1
  GPIO16  -   EXT_GPIO2
  GPIO17  -   EXT_GPIO3
  GPIO24  -   EXT_GPIO4
  GPIO25  -   EXT_GPIO5
  GPIO26  -   EXT_GPIO6
  GPIO27  -   EXT_GPIO7
  GPIO28  -   EXT_GPIO8
  GPIO29  -   EXT_GPIO9
  GPIO30  -   EXT_GPIO10
  GPIO31  -   EXT_GPIO11
  GPIO57  -   EXT_GPIO12
  GPIO74  -   EXT_IRQ1
  GPIO75  -   EXT_IRQ2
  GPIO76  -   EXT_IRQ3
  GPIO77  -   EXT_IRQ4
  GPIO78  -   EXT_IRQ5
  GPIO79  -   EXT_IRQ6
  GPIO80  -   EXT_IRQ7
  GPIO81  -   EXT_IRQ8
  GPIO87  -   VCCIO_PWREN (External Device PWREN)
  
  Dallas 1-Wire   - Leave unconfigured for now...
  -------------
  GPIO0_2 -   DS - 1Wire
  
  Ethernet
  --------
  GPIO1   -   DM9000 PWR
  GPIO9   -   DM9K_nIRQ
  GPIO36  -   DM9K_RESET
  
  Keypad  - Leave unconfigured by for now...
  ------
  GPIO1_2 -   KP_DKIN0
  GPIO5_2 -   KP_MKOUT7
  GPIO82  -   KP_DKIN1
  GPIO85  -   KP_DKIN2
  GPIO86  -   KP_DKIN3
  GPIO113 -   KP_MKIN0
  GPIO114 -   KP_MKIN1
  GPIO115 -   KP_MKIN2
  GPIO116 -   KP_MKIN3
  GPIO117 -   KP_MKIN4
  GPIO118 -   KP_MKIN5
  GPIO119 -   KP_MKIN6
  GPIO120 -   KP_MKIN7
  GPIO121 -   KP_MKOUT0
  GPIO122 -   KP_MKOUT1
  GPIO122 -   KP_MKOUT2
  GPIO123 -   KP_MKOUT3
  GPIO124 -   KP_MKOUT4
  GPIO125 -   KP_MKOUT5
  GPIO127 -   KP_MKOUT6
  
  Data Bus    - Leave unconfigured for now...
  --------
  GPIO2   -   nWait (Data Bus)
  
  USB Device
  ----------
  GPIO4_2 -   USBD_PULLUP
  GPIO10  -   UTM_CLK (USB Device UTM Clk)
  GPIO49  -   USB 2.0 Device UTM_DATA0
  GPIO50  -   USB 2.0 Device UTM_DATA1
  GPIO51  -   USB 2.0 Device UTM_DATA2
  GPIO52  -   USB 2.0 Device UTM_DATA3
  GPIO53  -   USB 2.0 Device UTM_DATA4
  GPIO54  -   USB 2.0 Device UTM_DATA5
  GPIO55  -   USB 2.0 Device UTM_DATA6
  GPIO56  -   USB 2.0 Device UTM_DATA7
  GPIO58  -   UTM_RXVALID (USB 2.0 Device)
  GPIO59  -   UTM_RXACTIVE (USB 2.0 Device)
  GPIO60  -   UTM_RXERROR
  GPIO61  -   UTM_OPMODE0
  GPIO62  -   UTM_OPMODE1
  GPIO71  -   USBD_INT    (USB Device?)
  GPIO73  -   UTM_TXREADY (USB 2.0 Device)
  GPIO83  -   UTM_TXVALID (USB 2.0 Device)
  GPIO98  -   UTM_RESET   (USB 2.0 device)
  GPIO99  -   UTM_XCVR_SELECT
  GPIO100 -   UTM_TERM_SELECT
  GPIO101 -   UTM_SUSPENDM_X
  GPIO102 -   UTM_LINESTATE0
  GPIO103 -   UTM_LINESTATE1
  
  Card-Bus Interface  - Leave unconfigured for now...
  ------------------
  GPIO5   -   nPIOR (I/O space output enable)
  GPIO6   -   nPIOW (I/O space write enable)
  GPIO7   -   nIOS16 (Input from I/O space telling size of data bus)
  GPIO8   -   nPWAIT (Input for inserting wait states)
  
  LCD
  ---
  GPIO6_2     -   LDD0
  GPIO7_2     -   LDD1
  GPIO8_2     -   LDD2
  GPIO9_2     -   LDD3
  GPIO11_2    -   LDD5
  GPIO12_2    -   LDD6
  GPIO13_2    -   LDD7
  GPIO14_2    -   VSYNC
  GPIO15_2    -   HSYNC
  GPIO16_2    -   VCLK
  GPIO17_2    -   HCLK
  GPIO18_2    -   VDEN
  GPIO63      -   LDD8    (CPU LCD)
  GPIO64      -   LDD9    (CPU LCD)
  GPIO65      -   LDD10   (CPU LCD)
  GPIO66      -   LDD11   (CPU LCD)
  GPIO67      -   LDD12   (CPU LCD)
  GPIO68      -   LDD13   (CPU LCD)
  GPIO69      -   LDD14   (CPU LCD)
  GPIO70      -   LDD15   (CPU LCD)
  GPIO88      -   VCCLCD_PWREN (LCD Panel PWREN)
  GPIO97      -   BACKLIGHT_EN
  GPIO104     -   LCD_PWREN
  
  PWM   - Leave unconfigured for now...
  ---
  GPIO11  -   PWM0
  GPIO12  -   PWM1
  GPIO13  -   PWM2
  GPIO14  -   PWM3
  
  SD-CARD
  -------
  GPIO18  -   SDDATA0
  GPIO19  -   SDDATA1
  GPIO20  -   SDDATA2
  GPIO21  -   SDDATA3
  GPIO22  -   SDCLK
  GPIO23  -   SDCMD
  GPIO72  -   SD_WP
  GPIO84  -   SD_nIRQ_CD  (SD-Card)
  
  I2C
  ---
  GPIO32  -   I2CSCL
  GPIO33  -   I2CSDA
  
  AC97
  ----
  GPIO35  -   AC97_SDATA_IN
  GPIO37  -   AC97_SDATA_OUT
  GPIO38  -   AC97_SYNC
  GPIO39  -   AC97_BITCLK
  GPIO40  -   AC97_nRESET
  
  UART1
  -----
  GPIO41  -   UART_RXD1
  GPIO42  -   UART_TXD1
  GPIO43  -   UART_CTS1
  GPIO44  -   UART_DCD1
  GPIO45  -   UART_DSR1
  GPIO46  -   UART_nRI1
  GPIO47  -   UART_DTR1
  GPIO48  -   UART_RTS1
  
  UART2
  -----
  GPIO109 -   RTS2
  GPIO110 -   RXD2
  GPIO111 -   TXD2
  GPIO112 -   nCTS2
  
  UART3
  -----
  GPIO105 -   nCTS3
  GPIO106 -   nRTS3
  GPIO107 -   TXD3
  GPIO108 -   RXD3
  
  SSP3    - Leave unconfigured for now...
  ----
  GPIO89  -   SSP3_CLK
  GPIO90  -   SSP3_SFRM
  GPIO91  -   SSP3_TXD
  GPIO92  -   SSP3_RXD
  
  SSP4
  GPIO93  -   SSP4_CLK
  GPIO94  -   SSP4_SFRM
  GPIO95  -   SSP4_TXD
  GPIO96  -   SSP4_RXD
  */
  
  static mfp_cfg_t mfp_cfg[] __initdata = {
  	/* USB */
  	GPIO10_UTM_CLK,
  	GPIO49_U2D_PHYDATA_0,
  	GPIO50_U2D_PHYDATA_1,
  	GPIO51_U2D_PHYDATA_2,
  	GPIO52_U2D_PHYDATA_3,
  	GPIO53_U2D_PHYDATA_4,
  	GPIO54_U2D_PHYDATA_5,
  	GPIO55_U2D_PHYDATA_6,
  	GPIO56_U2D_PHYDATA_7,
  	GPIO58_UTM_RXVALID,
  	GPIO59_UTM_RXACTIVE,
  	GPIO60_U2D_RXERROR,
  	GPIO61_U2D_OPMODE0,
  	GPIO62_U2D_OPMODE1,
  	GPIO71_GPIO, /* USBD_INT */
  	GPIO73_UTM_TXREADY,
  	GPIO83_U2D_TXVALID,
  	GPIO98_U2D_RESET,
  	GPIO99_U2D_XCVR_SEL,
  	GPIO100_U2D_TERM_SEL,
  	GPIO101_U2D_SUSPEND,
  	GPIO102_UTM_LINESTATE_0,
  	GPIO103_UTM_LINESTATE_1,
  	GPIO4_2_GPIO | MFP_PULL_HIGH, /* UTM_PULLUP */
  
  	/* DM9000 */
  	GPIO1_GPIO,
  	GPIO9_GPIO,
  	GPIO36_GPIO,
  
  	/* AC97 */
  	GPIO35_AC97_SDATA_IN_0,
  	GPIO37_AC97_SDATA_OUT,
  	GPIO38_AC97_SYNC,
  	GPIO39_AC97_BITCLK,
  	GPIO40_AC97_nACRESET,
  
  	/* UARTS */
  	GPIO41_UART1_RXD,
  	GPIO42_UART1_TXD,
  	GPIO43_UART1_CTS,
  	GPIO44_UART1_DCD,
  	GPIO45_UART1_DSR,
  	GPIO46_UART1_RI,
  	GPIO47_UART1_DTR,
  	GPIO48_UART1_RTS,
  
  	GPIO109_UART2_RTS,
  	GPIO110_UART2_RXD,
  	GPIO111_UART2_TXD,
  	GPIO112_UART2_CTS,
  
  	GPIO105_UART3_CTS,
  	GPIO106_UART3_RTS,
  	GPIO107_UART3_TXD,
  	GPIO108_UART3_RXD,
  
  	GPIO78_GPIO,
  	GPIO79_GPIO,
  	GPIO80_GPIO,
  	GPIO81_GPIO,
  
  	/* I2C */
  	GPIO32_I2C_SCL,
  	GPIO33_I2C_SDA,
  
  	/* MMC */
  	GPIO18_MMC1_DAT0,
  	GPIO19_MMC1_DAT1,
  	GPIO20_MMC1_DAT2,
  	GPIO21_MMC1_DAT3,
  	GPIO22_MMC1_CLK,
  	GPIO23_MMC1_CMD,
  	GPIO72_GPIO | MFP_PULL_HIGH, /* Card Detect */
  	GPIO84_GPIO | MFP_PULL_LOW, /* Write Protect */
  
  	/* IRQ */
  	GPIO74_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ1 */
  	GPIO75_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ2 */
  	GPIO76_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ3 */
  	GPIO77_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ4 */
  	GPIO78_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ5 */
  	GPIO79_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ6 */
  	GPIO80_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ7 */
  	GPIO81_GPIO | MFP_LPM_EDGE_RISE  /* EXT_IRQ8 */
  };
  
  /* MMC/MCI Support */
  #if defined(CONFIG_MMC)
  static struct pxamci_platform_data mxm_8x10_mci_platform_data = {
  	.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
  	.detect_delay_ms = 10,
  	.gpio_card_detect = MXM_8X10_SD_nCD,
  	.gpio_card_ro = MXM_8X10_SD_WP,
  	.gpio_power = -1
  };
  
  void __init mxm_8x10_mmc_init(void)
  {
  	pxa_set_mci_info(&mxm_8x10_mci_platform_data);
  }
  #endif
  
  /* USB Open Host Controller Interface */
  static struct pxaohci_platform_data mxm_8x10_ohci_platform_data = {
  	.port_mode = PMM_NPS_MODE,
  	.flags = ENABLE_PORT_ALL
  };
  
  void __init mxm_8x10_usb_host_init(void)
  {
  	pxa_set_ohci_info(&mxm_8x10_ohci_platform_data);
  }
  
  /* AC97 Sound Support */
  static struct platform_device mxm_8x10_ac97_device = {
  	.name = "pxa2xx-ac97"
  };
  
  void __init mxm_8x10_ac97_init(void)
  {
  	platform_device_register(&mxm_8x10_ac97_device);
  }
  
  /* NAND flash Support */
  #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
  #define NAND_BLOCK_SIZE SZ_128K
  #define NB(x)           (NAND_BLOCK_SIZE * (x))
  static struct mtd_partition mxm_8x10_nand_partitions[] = {
  	[0] = {
  	       .name = "boot",
  	       .size = NB(0x002),
  	       .offset = NB(0x000),
  	       .mask_flags = MTD_WRITEABLE
  	},
  	[1] = {
  	       .name = "kernel",
  	       .size = NB(0x010),
  	       .offset = NB(0x002),
  	       .mask_flags = MTD_WRITEABLE
  	},
  	[2] = {
  	       .name = "root",
  	       .size = NB(0x36c),
  	       .offset = NB(0x012)
  	},
  	[3] = {
  	       .name = "bbt",
  	       .size = NB(0x082),
  	       .offset = NB(0x37e),
  	       .mask_flags = MTD_WRITEABLE
  	}
  };
  
  static struct pxa3xx_nand_platform_data mxm_8x10_nand_info = {
  	.enable_arbiter	= 1,
  	.keep_config	= 1,
  	.num_cs		= 1,
  	.parts[0]	= mxm_8x10_nand_partitions,
  	.nr_parts[0]	= ARRAY_SIZE(mxm_8x10_nand_partitions)
  };
  
  static void __init mxm_8x10_nand_init(void)
  {
  	pxa3xx_set_nand_info(&mxm_8x10_nand_info);
  }
  #else
  static inline void mxm_8x10_nand_init(void) {}
  #endif /* CONFIG_MTD_NAND_PXA3xx || CONFIG_MTD_NAND_PXA3xx_MODULE */
  
  /* Ethernet support: Davicom DM9000 */
  static struct resource dm9k_resources[] = {
  	[0] = {
  	       .start = MXM_8X10_ETH_PHYS + 0x300,
  	       .end = MXM_8X10_ETH_PHYS + 0x300,
  	       .flags = IORESOURCE_MEM
  	},
  	[1] = {
  	       .start = MXM_8X10_ETH_PHYS + 0x308,
  	       .end = MXM_8X10_ETH_PHYS + 0x308,
  	       .flags = IORESOURCE_MEM
  	},
  	[2] = {
  	       .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
  	       .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
  	       .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE
  	}
  };
  
  static struct dm9000_plat_data dm9k_plat_data = {
  	.flags = DM9000_PLATF_16BITONLY
  };
  
  static struct platform_device dm9k_device = {
  	.name = "dm9000",
  	.id = 0,
  	.num_resources = ARRAY_SIZE(dm9k_resources),
  	.resource = dm9k_resources,
  	.dev = {
  		.platform_data = &dm9k_plat_data
  	}
  };
  
  static void __init mxm_8x10_ethernet_init(void)
  {
  	platform_device_register(&dm9k_device);
  }
  
  /* PXA UARTs */
  static void __init mxm_8x10_uarts_init(void)
  {
  	pxa_set_ffuart_info(NULL);
  	pxa_set_btuart_info(NULL);
  	pxa_set_stuart_info(NULL);
  }
  
  /* I2C and Real Time Clock */
  static struct i2c_board_info __initdata mxm_8x10_i2c_devices[] = {
  	{
  		I2C_BOARD_INFO("ds1337", 0x68)
  	}
  };
  
  static void __init mxm_8x10_i2c_init(void)
  {
  	i2c_register_board_info(0, mxm_8x10_i2c_devices,
  				ARRAY_SIZE(mxm_8x10_i2c_devices));
  	pxa_set_i2c_info(NULL);
  }
  
  void __init mxm_8x10_barebones_init(void)
  {
  	pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_cfg));
  
  	mxm_8x10_uarts_init();
  	mxm_8x10_nand_init();
  	mxm_8x10_i2c_init();
  	mxm_8x10_ethernet_init();
  }