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brownstone.c

/*
 *  linux/arch/arm/mach-mmp/brownstone.c
 *
 *  Support for the Marvell Brownstone Development Platform.
 *
 *  Copyright (C) 2009-2010 Marvell International Ltd.
 *
 *  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
 *  publishhed by the Free Software Foundation.
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/max8649.h>
#include <linux/regulator/fixed.h>
#include <linux/mfd/max8925.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/addr-map.h>
#include <mach/mfp-mmp2.h>
#include <mach/mmp2.h>
#include <mach/irqs.h>

#include "common.h"

#define BROWNSTONE_NR_IRQS    (IRQ_BOARD_START + 40)

#define GPIO_5V_ENABLE        (89)

static unsigned long brownstone_pin_config[] __initdata = {
      /* UART1 */
      GPIO29_UART1_RXD,
      GPIO30_UART1_TXD,

      /* UART3 */
      GPIO51_UART3_RXD,
      GPIO52_UART3_TXD,

      /* DFI */
      GPIO168_DFI_D0,
      GPIO167_DFI_D1,
      GPIO166_DFI_D2,
      GPIO165_DFI_D3,
      GPIO107_DFI_D4,
      GPIO106_DFI_D5,
      GPIO105_DFI_D6,
      GPIO104_DFI_D7,
      GPIO111_DFI_D8,
      GPIO164_DFI_D9,
      GPIO163_DFI_D10,
      GPIO162_DFI_D11,
      GPIO161_DFI_D12,
      GPIO110_DFI_D13,
      GPIO109_DFI_D14,
      GPIO108_DFI_D15,
      GPIO143_ND_nCS0,
      GPIO144_ND_nCS1,
      GPIO147_ND_nWE,
      GPIO148_ND_nRE,
      GPIO150_ND_ALE,
      GPIO149_ND_CLE,
      GPIO112_ND_RDY0,
      GPIO160_ND_RDY1,

      /* PMIC */
      PMIC_PMIC_INT | MFP_LPM_EDGE_FALL,

      /* MMC0 */
      GPIO131_MMC1_DAT3 | MFP_PULL_HIGH,
      GPIO132_MMC1_DAT2 | MFP_PULL_HIGH,
      GPIO133_MMC1_DAT1 | MFP_PULL_HIGH,
      GPIO134_MMC1_DAT0 | MFP_PULL_HIGH,
      GPIO136_MMC1_CMD | MFP_PULL_HIGH,
      GPIO139_MMC1_CLK,
      GPIO140_MMC1_CD | MFP_PULL_LOW,
      GPIO141_MMC1_WP | MFP_PULL_LOW,

      /* MMC1 */
      GPIO37_MMC2_DAT3 | MFP_PULL_HIGH,
      GPIO38_MMC2_DAT2 | MFP_PULL_HIGH,
      GPIO39_MMC2_DAT1 | MFP_PULL_HIGH,
      GPIO40_MMC2_DAT0 | MFP_PULL_HIGH,
      GPIO41_MMC2_CMD | MFP_PULL_HIGH,
      GPIO42_MMC2_CLK,

      /* MMC2 */
      GPIO165_MMC3_DAT7 | MFP_PULL_HIGH,
      GPIO162_MMC3_DAT6 | MFP_PULL_HIGH,
      GPIO166_MMC3_DAT5 | MFP_PULL_HIGH,
      GPIO163_MMC3_DAT4 | MFP_PULL_HIGH,
      GPIO167_MMC3_DAT3 | MFP_PULL_HIGH,
      GPIO164_MMC3_DAT2 | MFP_PULL_HIGH,
      GPIO168_MMC3_DAT1 | MFP_PULL_HIGH,
      GPIO111_MMC3_DAT0 | MFP_PULL_HIGH,
      GPIO112_MMC3_CMD | MFP_PULL_HIGH,
      GPIO151_MMC3_CLK,

      /* 5V regulator */
      GPIO89_GPIO,
};

static struct regulator_consumer_supply max8649_supply[] = {
      REGULATOR_SUPPLY("vcc_core", NULL),
};

static struct regulator_init_data max8649_init_data = {
      .constraints      = {
            .name       = "vcc_core range",
            .min_uV           = 1150000,
            .max_uV           = 1280000,
            .always_on  = 1,
            .boot_on    = 1,
            .valid_ops_mask   = REGULATOR_CHANGE_VOLTAGE,
      },
      .num_consumer_supplies  = 1,
      .consumer_supplies      = &max8649_supply[0],
};

static struct max8649_platform_data brownstone_max8649_info = {
      .mode       = 2,  /* VID1 = 1, VID0 = 0 */
      .extclk           = 0,
      .ramp_timing      = MAX8649_RAMP_32MV,
      .regulator  = &max8649_init_data,
};

static struct regulator_consumer_supply brownstone_v_5vp_supplies[] = {
      REGULATOR_SUPPLY("v_5vp", NULL),
};

static struct regulator_init_data brownstone_v_5vp_data = {
      .constraints      = {
            .valid_ops_mask         = REGULATOR_CHANGE_STATUS,
      },
      .num_consumer_supplies  = ARRAY_SIZE(brownstone_v_5vp_supplies),
      .consumer_supplies      = brownstone_v_5vp_supplies,
};

static struct fixed_voltage_config brownstone_v_5vp = {
      .supply_name            = "v_5vp",
      .microvolts       = 5000000,
      .gpio             = GPIO_5V_ENABLE,
      .enable_high            = 1,
      .enabled_at_boot  = 1,
      .init_data        = &brownstone_v_5vp_data,
};

static struct platform_device brownstone_v_5vp_device = {
      .name       = "reg-fixed-voltage",
      .id         = 1,
      .dev = {
            .platform_data = &brownstone_v_5vp,
      },
};

static struct max8925_platform_data brownstone_max8925_info = {
      .irq_base         = IRQ_BOARD_START,
};

static struct i2c_board_info brownstone_twsi1_info[] = {
      [0] = {
            .type       = "max8649",
            .addr       = 0x60,
            .platform_data    = &brownstone_max8649_info,
      },
      [1] = {
            .type       = "max8925",
            .addr       = 0x3c,
            .irq        = IRQ_MMP2_PMIC,
            .platform_data    = &brownstone_max8925_info,
      },
};

static struct sdhci_pxa_platdata mmp2_sdh_platdata_mmc0 = {
      .max_speed  = 25000000,
};

static void __init brownstone_init(void)
{
      mfp_config(ARRAY_AND_SIZE(brownstone_pin_config));

      /* on-chip devices */
      mmp2_add_uart(1);
      mmp2_add_uart(3);
      mmp2_add_twsi(1, NULL, ARRAY_AND_SIZE(brownstone_twsi1_info));
      mmp2_add_sdhost(0, &mmp2_sdh_platdata_mmc0); /* SD/MMC */

      /* enable 5v regulator */
      platform_device_register(&brownstone_v_5vp_device);
}

MACHINE_START(BROWNSTONE, "Brownstone Development Platform")
      /* Maintainer: Haojian Zhuang <haojian.zhuang@marvell.com> */
      .map_io           = mmp_map_io,
      .nr_irqs    = BROWNSTONE_NR_IRQS,
      .init_irq   = mmp2_init_irq,
      .timer            = &mmp2_timer,
      .init_machine     = brownstone_init,
MACHINE_END

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