linux/arch/arm/mach-mmp/brownstone.c
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   1/*
   2 *  linux/arch/arm/mach-mmp/brownstone.c
   3 *
   4 *  Support for the Marvell Brownstone Development Platform.
   5 *
   6 *  Copyright (C) 2009-2010 Marvell International Ltd.
   7 *
   8 *  This program is free software; you can redistribute it and/or modify
   9 *  it under the terms of the GNU General Public License version 2 as
  10 *  publishhed by the Free Software Foundation.
  11 */
  12
  13#include <linux/init.h>
  14#include <linux/kernel.h>
  15#include <linux/platform_device.h>
  16#include <linux/io.h>
  17#include <linux/gpio-pxa.h>
  18#include <linux/regulator/machine.h>
  19#include <linux/regulator/max8649.h>
  20#include <linux/regulator/fixed.h>
  21#include <linux/mfd/max8925.h>
  22
  23#include <asm/mach-types.h>
  24#include <asm/mach/arch.h>
  25#include "addr-map.h"
  26#include "mfp-mmp2.h"
  27#include "mmp2.h"
  28#include "irqs.h"
  29
  30#include "common.h"
  31
  32#define BROWNSTONE_NR_IRQS      (MMP_NR_IRQS + 40)
  33
  34#define GPIO_5V_ENABLE          (89)
  35
  36static unsigned long brownstone_pin_config[] __initdata = {
  37        /* UART1 */
  38        GPIO29_UART1_RXD,
  39        GPIO30_UART1_TXD,
  40
  41        /* UART3 */
  42        GPIO51_UART3_RXD,
  43        GPIO52_UART3_TXD,
  44
  45        /* DFI */
  46        GPIO168_DFI_D0,
  47        GPIO167_DFI_D1,
  48        GPIO166_DFI_D2,
  49        GPIO165_DFI_D3,
  50        GPIO107_DFI_D4,
  51        GPIO106_DFI_D5,
  52        GPIO105_DFI_D6,
  53        GPIO104_DFI_D7,
  54        GPIO111_DFI_D8,
  55        GPIO164_DFI_D9,
  56        GPIO163_DFI_D10,
  57        GPIO162_DFI_D11,
  58        GPIO161_DFI_D12,
  59        GPIO110_DFI_D13,
  60        GPIO109_DFI_D14,
  61        GPIO108_DFI_D15,
  62        GPIO143_ND_nCS0,
  63        GPIO144_ND_nCS1,
  64        GPIO147_ND_nWE,
  65        GPIO148_ND_nRE,
  66        GPIO150_ND_ALE,
  67        GPIO149_ND_CLE,
  68        GPIO112_ND_RDY0,
  69        GPIO160_ND_RDY1,
  70
  71        /* PMIC */
  72        PMIC_PMIC_INT | MFP_LPM_EDGE_FALL,
  73
  74        /* MMC0 */
  75        GPIO131_MMC1_DAT3 | MFP_PULL_HIGH,
  76        GPIO132_MMC1_DAT2 | MFP_PULL_HIGH,
  77        GPIO133_MMC1_DAT1 | MFP_PULL_HIGH,
  78        GPIO134_MMC1_DAT0 | MFP_PULL_HIGH,
  79        GPIO136_MMC1_CMD | MFP_PULL_HIGH,
  80        GPIO139_MMC1_CLK,
  81        GPIO140_MMC1_CD | MFP_PULL_LOW,
  82        GPIO141_MMC1_WP | MFP_PULL_LOW,
  83
  84        /* MMC1 */
  85        GPIO37_MMC2_DAT3 | MFP_PULL_HIGH,
  86        GPIO38_MMC2_DAT2 | MFP_PULL_HIGH,
  87        GPIO39_MMC2_DAT1 | MFP_PULL_HIGH,
  88        GPIO40_MMC2_DAT0 | MFP_PULL_HIGH,
  89        GPIO41_MMC2_CMD | MFP_PULL_HIGH,
  90        GPIO42_MMC2_CLK,
  91
  92        /* MMC2 */
  93        GPIO165_MMC3_DAT7 | MFP_PULL_HIGH,
  94        GPIO162_MMC3_DAT6 | MFP_PULL_HIGH,
  95        GPIO166_MMC3_DAT5 | MFP_PULL_HIGH,
  96        GPIO163_MMC3_DAT4 | MFP_PULL_HIGH,
  97        GPIO167_MMC3_DAT3 | MFP_PULL_HIGH,
  98        GPIO164_MMC3_DAT2 | MFP_PULL_HIGH,
  99        GPIO168_MMC3_DAT1 | MFP_PULL_HIGH,
 100        GPIO111_MMC3_DAT0 | MFP_PULL_HIGH,
 101        GPIO112_MMC3_CMD | MFP_PULL_HIGH,
 102        GPIO151_MMC3_CLK,
 103
 104        /* 5V regulator */
 105        GPIO89_GPIO,
 106};
 107
 108static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
 109        .irq_base       = MMP_GPIO_TO_IRQ(0),
 110};
 111
 112static struct regulator_consumer_supply max8649_supply[] = {
 113        REGULATOR_SUPPLY("vcc_core", NULL),
 114};
 115
 116static struct regulator_init_data max8649_init_data = {
 117        .constraints    = {
 118                .name           = "vcc_core range",
 119                .min_uV         = 1150000,
 120                .max_uV         = 1280000,
 121                .always_on      = 1,
 122                .boot_on        = 1,
 123                .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 124        },
 125        .num_consumer_supplies  = 1,
 126        .consumer_supplies      = &max8649_supply[0],
 127};
 128
 129static struct max8649_platform_data brownstone_max8649_info = {
 130        .mode           = 2,    /* VID1 = 1, VID0 = 0 */
 131        .extclk         = 0,
 132        .ramp_timing    = MAX8649_RAMP_32MV,
 133        .regulator      = &max8649_init_data,
 134};
 135
 136static struct regulator_consumer_supply brownstone_v_5vp_supplies[] = {
 137        REGULATOR_SUPPLY("v_5vp", NULL),
 138};
 139
 140static struct regulator_init_data brownstone_v_5vp_data = {
 141        .constraints    = {
 142                .valid_ops_mask         = REGULATOR_CHANGE_STATUS,
 143        },
 144        .num_consumer_supplies  = ARRAY_SIZE(brownstone_v_5vp_supplies),
 145        .consumer_supplies      = brownstone_v_5vp_supplies,
 146};
 147
 148static struct fixed_voltage_config brownstone_v_5vp = {
 149        .supply_name            = "v_5vp",
 150        .microvolts             = 5000000,
 151        .gpio                   = GPIO_5V_ENABLE,
 152        .enable_high            = 1,
 153        .enabled_at_boot        = 1,
 154        .init_data              = &brownstone_v_5vp_data,
 155};
 156
 157static struct platform_device brownstone_v_5vp_device = {
 158        .name           = "reg-fixed-voltage",
 159        .id             = 1,
 160        .dev = {
 161                .platform_data = &brownstone_v_5vp,
 162        },
 163};
 164
 165static struct max8925_platform_data brownstone_max8925_info = {
 166        .irq_base               = MMP_NR_IRQS,
 167};
 168
 169static struct i2c_board_info brownstone_twsi1_info[] = {
 170        [0] = {
 171                .type           = "max8649",
 172                .addr           = 0x60,
 173                .platform_data  = &brownstone_max8649_info,
 174        },
 175        [1] = {
 176                .type           = "max8925",
 177                .addr           = 0x3c,
 178                .irq            = IRQ_MMP2_PMIC,
 179                .platform_data  = &brownstone_max8925_info,
 180        },
 181};
 182
 183static struct sdhci_pxa_platdata mmp2_sdh_platdata_mmc0 = {
 184        .clk_delay_cycles = 0x1f,
 185};
 186
 187static struct sdhci_pxa_platdata mmp2_sdh_platdata_mmc2 = {
 188        .clk_delay_cycles = 0x1f,
 189        .flags = PXA_FLAG_CARD_PERMANENT
 190                | PXA_FLAG_SD_8_BIT_CAPABLE_SLOT,
 191};
 192
 193static struct sram_platdata mmp2_asram_platdata = {
 194        .pool_name      = "asram",
 195        .granularity    = SRAM_GRANULARITY,
 196};
 197
 198static struct sram_platdata mmp2_isram_platdata = {
 199        .pool_name      = "isram",
 200        .granularity    = SRAM_GRANULARITY,
 201};
 202
 203static void __init brownstone_init(void)
 204{
 205        mfp_config(ARRAY_AND_SIZE(brownstone_pin_config));
 206
 207        /* on-chip devices */
 208        mmp2_add_uart(1);
 209        mmp2_add_uart(3);
 210        platform_device_add_data(&mmp2_device_gpio, &mmp2_gpio_pdata,
 211                                 sizeof(struct pxa_gpio_platform_data));
 212        platform_device_register(&mmp2_device_gpio);
 213        mmp2_add_twsi(1, NULL, ARRAY_AND_SIZE(brownstone_twsi1_info));
 214        mmp2_add_sdhost(0, &mmp2_sdh_platdata_mmc0); /* SD/MMC */
 215        mmp2_add_sdhost(2, &mmp2_sdh_platdata_mmc2); /* eMMC */
 216        mmp2_add_asram(&mmp2_asram_platdata);
 217        mmp2_add_isram(&mmp2_isram_platdata);
 218
 219        /* enable 5v regulator */
 220        platform_device_register(&brownstone_v_5vp_device);
 221}
 222
 223MACHINE_START(BROWNSTONE, "Brownstone Development Platform")
 224        /* Maintainer: Haojian Zhuang <haojian.zhuang@marvell.com> */
 225        .map_io         = mmp_map_io,
 226        .nr_irqs        = BROWNSTONE_NR_IRQS,
 227        .init_irq       = mmp2_init_irq,
 228        .init_time      = mmp2_timer_init,
 229        .init_machine   = brownstone_init,
 230        .restart        = mmp_restart,
 231MACHINE_END
 232