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board-mop500.c

/*
 * Copyright (C) 2008-2009 ST-Ericsson
 *
 * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.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/init.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/amba/bus.h>
#include <linux/amba/pl022.h>
#include <linux/spi/spi.h>
#include <linux/mfd/ab8500.h>
#include <linux/mfd/tc3589x.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#include <plat/pincfg.h>
#include <plat/i2c.h>

#include <mach/hardware.h>
#include <mach/setup.h>
#include <mach/devices.h>
#include <mach/irqs.h>

#include "devices-db8500.h"
#include "pins-db8500.h"
#include "board-mop500.h"
#include "board-mop500-regulators.h"

static pin_cfg_t mop500_pins[] = {
      /* SSP0 */
      GPIO143_SSP0_CLK,
      GPIO144_SSP0_FRM,
      GPIO145_SSP0_RXD,
      GPIO146_SSP0_TXD,

      /* I2C */
      GPIO147_I2C0_SCL,
      GPIO148_I2C0_SDA,
      GPIO16_I2C1_SCL,
      GPIO17_I2C1_SDA,
      GPIO10_I2C2_SDA,
      GPIO11_I2C2_SCL,
      GPIO229_I2C3_SDA,
      GPIO230_I2C3_SCL,

      /* SKE keypad */
      GPIO153_KP_I7,
      GPIO154_KP_I6,
      GPIO155_KP_I5,
      GPIO156_KP_I4,
      GPIO157_KP_O7,
      GPIO158_KP_O6,
      GPIO159_KP_O5,
      GPIO160_KP_O4,
      GPIO161_KP_I3,
      GPIO162_KP_I2,
      GPIO163_KP_I1,
      GPIO164_KP_I0,
      GPIO165_KP_O3,
      GPIO166_KP_O2,
      GPIO167_KP_O1,
      GPIO168_KP_O0,

      /* GPIO_EXP_INT */
      GPIO217_GPIO,

      /* STMPE1601 IRQ */
      GPIO218_GPIO    | PIN_INPUT_PULLUP,
};

static struct ab8500_platform_data ab8500_platdata = {
      .irq_base   = MOP500_AB8500_IRQ_BASE,
      .regulator  = ab8500_regulators,
      .num_regulator    = ARRAY_SIZE(ab8500_regulators),
};

static struct resource ab8500_resources[] = {
      [0] = {
            .start      = IRQ_DB8500_AB8500,
            .end  = IRQ_DB8500_AB8500,
            .flags      = IORESOURCE_IRQ
      }
};

struct platform_device ab8500_device = {
      .name = "ab8500-i2c",
      .id = 0,
      .dev = {
            .platform_data = &ab8500_platdata,
      },
      .num_resources = 1,
      .resource = ab8500_resources,
};

static struct pl022_ssp_controller ssp0_platform_data = {
      .bus_id = 0,
      /* pl022 not yet supports dma */
      .enable_dma = 0,
      /* on this platform, gpio 31,142,144,214 &
       * 224 are connected as chip selects
       */
      .num_chipselect = 5,
};

/*
 * TC35892
 */

static void mop500_tc35892_init(struct tc3589x *tc3589x, unsigned int base)
{
      mop500_sdi_tc35892_init();
}

static struct tc3589x_gpio_platform_data mop500_tc35892_gpio_data = {
      .gpio_base  = MOP500_EGPIO(0),
      .setup            = mop500_tc35892_init,
};

static struct tc3589x_platform_data mop500_tc35892_data = {
      .block            = TC3589x_BLOCK_GPIO,
      .gpio       = &mop500_tc35892_gpio_data,
      .irq_base   = MOP500_EGPIO_IRQ_BASE,
};

static struct i2c_board_info mop500_i2c0_devices[] = {
      {
            I2C_BOARD_INFO("tc3589x", 0x42),
            .irq            = NOMADIK_GPIO_TO_IRQ(217),
            .platform_data  = &mop500_tc35892_data,
      },
};

#define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
static struct nmk_i2c_controller u8500_i2c##id##_data = { \
      /*                      \
       * slave data setup time, which is  \
       * 250 ns,100ns,10ns which is 14,6,2      \
       * respectively for a 48 Mhz  \
       * i2c clock                  \
       */                     \
      .slsu       = _slsu,    \
      /* Tx FIFO threshold */       \
      .tft        = _tft,           \
      /* Rx FIFO threshold */       \
      .rft        = _rft,           \
      /* std. mode operation */     \
      .clk_freq   = clk,            \
      .sm         = _sm,            \
}

/*
 * The board uses 4 i2c controllers, initialize all of
 * them with slave data setup time of 250 ns,
 * Tx & Rx FIFO threshold values as 1 and standard
 * mode of operation
 */
U8500_I2C_CONTROLLER(0, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
U8500_I2C_CONTROLLER(2, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
U8500_I2C_CONTROLLER(3, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);

static void __init mop500_i2c_init(void)
{
      db8500_add_i2c0(&u8500_i2c0_data);
      db8500_add_i2c1(&u8500_i2c1_data);
      db8500_add_i2c2(&u8500_i2c2_data);
      db8500_add_i2c3(&u8500_i2c3_data);
}

/* add any platform devices here - TODO */
static struct platform_device *platform_devs[] __initdata = {
};

static void __init mop500_spi_init(void)
{
      db8500_add_ssp0(&ssp0_platform_data);
}

static void __init mop500_uart_init(void)
{
      db8500_add_uart0();
      db8500_add_uart1();
      db8500_add_uart2();
}

static void __init u8500_init_machine(void)
{
      u8500_init_devices();

      nmk_config_pins(mop500_pins, ARRAY_SIZE(mop500_pins));

      platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));

      mop500_i2c_init();
      mop500_sdi_init();
      mop500_spi_init();
      mop500_uart_init();

      mop500_keypad_init();

      platform_device_register(&ab8500_device);

      i2c_register_board_info(0, mop500_i2c0_devices,
                        ARRAY_SIZE(mop500_i2c0_devices));
}

MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
      /* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
      .boot_params      = 0x100,
      .map_io           = u8500_map_io,
      .init_irq   = ux500_init_irq,
      /* we re-use nomadik timer here */
      .timer            = &ux500_timer,
      .init_machine     = u8500_init_machine,
MACHINE_END

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