arch/arm/mach-mmp/brownstone.c

   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/regulator/machine.h>
  18 #include <linux/regulator/max8649.h>
  19 #include <linux/regulator/fixed.h>
  20 #include <linux/mfd/max8925.h>
  21
  22 #include <asm/mach-types.h>
  23 #include <asm/mach/arch.h>
  24 #include <mach/addr-map.h>
  25 #include <mach/mfp-mmp2.h>
  26 #include <mach/mmp2.h>
  27 #include <mach/irqs.h>
  28
  29 #include "common.h"
  30
  31 #define BROWNSTONE_NR_IRQS      (IRQ_BOARD_START + 40)
  32
  33 #define GPIO_5V_ENABLE          (89)
  34
  35 static unsigned long brownstone_pin_config[] __initdata = {
  36         /* UART1 */
  37         GPIO29_UART1_RXD,
  38         GPIO30_UART1_TXD,
  39
  40         /* UART3 */
  41         GPIO51_UART3_RXD,
  42         GPIO52_UART3_TXD,
  43
  44         /* DFI */
  45         GPIO168_DFI_D0,
  46         GPIO167_DFI_D1,
  47         GPIO166_DFI_D2,
  48         GPIO165_DFI_D3,
  49         GPIO107_DFI_D4,
  50         GPIO106_DFI_D5,
  51         GPIO105_DFI_D6,
  52         GPIO104_DFI_D7,
  53         GPIO111_DFI_D8,
  54         GPIO164_DFI_D9,
  55         GPIO163_DFI_D10,
  56         GPIO162_DFI_D11,
  57         GPIO161_DFI_D12,
  58         GPIO110_DFI_D13,
  59         GPIO109_DFI_D14,
  60         GPIO108_DFI_D15,
  61         GPIO143_ND_nCS0,
  62         GPIO144_ND_nCS1,
  63         GPIO147_ND_nWE,
  64         GPIO148_ND_nRE,
  65         GPIO150_ND_ALE,
  66         GPIO149_ND_CLE,
  67         GPIO112_ND_RDY0,
  68         GPIO160_ND_RDY1,
  69
  70         /* PMIC */
  71         PMIC_PMIC_INT | MFP_LPM_EDGE_FALL,
  72
  73         /* MMC0 */
  74         GPIO131_MMC1_DAT3 | MFP_PULL_HIGH,
  75         GPIO132_MMC1_DAT2 | MFP_PULL_HIGH,
  76         GPIO133_MMC1_DAT1 | MFP_PULL_HIGH,
  77         GPIO134_MMC1_DAT0 | MFP_PULL_HIGH,
  78         GPIO136_MMC1_CMD | MFP_PULL_HIGH,
  79         GPIO139_MMC1_CLK,
  80         GPIO140_MMC1_CD | MFP_PULL_LOW,
  81         GPIO141_MMC1_WP | MFP_PULL_LOW,
  82
  83         /* MMC1 */
  84         GPIO37_MMC2_DAT3 | MFP_PULL_HIGH,
  85         GPIO38_MMC2_DAT2 | MFP_PULL_HIGH,
  86         GPIO39_MMC2_DAT1 | MFP_PULL_HIGH,
  87         GPIO40_MMC2_DAT0 | MFP_PULL_HIGH,
  88         GPIO41_MMC2_CMD | MFP_PULL_HIGH,
  89         GPIO42_MMC2_CLK,
  90
  91         /* MMC2 */
  92         GPIO165_MMC3_DAT7 | MFP_PULL_HIGH,
  93         GPIO162_MMC3_DAT6 | MFP_PULL_HIGH,
  94         GPIO166_MMC3_DAT5 | MFP_PULL_HIGH,
  95         GPIO163_MMC3_DAT4 | MFP_PULL_HIGH,
  96         GPIO167_MMC3_DAT3 | MFP_PULL_HIGH,
  97         GPIO164_MMC3_DAT2 | MFP_PULL_HIGH,
  98         GPIO168_MMC3_DAT1 | MFP_PULL_HIGH,
  99         GPIO111_MMC3_DAT0 | MFP_PULL_HIGH,
 100         GPIO112_MMC3_CMD | MFP_PULL_HIGH,
 101         GPIO151_MMC3_CLK,
 102
 103         /* 5V regulator */
 104         GPIO89_GPIO,
 105 };
 106
 107 static struct regulator_consumer_supply max8649_supply[] = {
 108         REGULATOR_SUPPLY("vcc_core", NULL),
 109 };
 110
 111 static struct regulator_init_data max8649_init_data = {
 112         .constraints    = {
 113                 .name           = "vcc_core range",
 114                 .min_uV         = 1150000,
 115                 .max_uV         = 1280000,
 116                 .always_on      = 1,
 117                 .boot_on        = 1,
 118                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 119         },
 120         .num_consumer_supplies  = 1,
 121         .consumer_supplies      = &max8649_supply[0],
 122 };
 123
 124 static struct max8649_platform_data brownstone_max8649_info = {
 125         .mode           = 2,    /* VID1 = 1, VID0 = 0 */
 126         .extclk         = 0,
 127         .ramp_timing    = MAX8649_RAMP_32MV,
 128         .regulator      = &max8649_init_data,
 129 };
 130
 131 static struct regulator_consumer_supply brownstone_v_5vp_supplies[] = {
 132         REGULATOR_SUPPLY("v_5vp", NULL),
 133 };
 134
 135 static struct regulator_init_data brownstone_v_5vp_data = {
 136         .constraints    = {
 137                 .valid_ops_mask         = REGULATOR_CHANGE_STATUS,
 138         },
 139         .num_consumer_supplies  = ARRAY_SIZE(brownstone_v_5vp_supplies),
 140         .consumer_supplies      = brownstone_v_5vp_supplies,
 141 };
 142
 143 static struct fixed_voltage_config brownstone_v_5vp = {
 144         .supply_name            = "v_5vp",
 145         .microvolts             = 5000000,
 146         .gpio                   = GPIO_5V_ENABLE,
 147         .enable_high            = 1,
 148         .enabled_at_boot        = 1,
 149         .init_data              = &brownstone_v_5vp_data,
 150 };
 151
 152 static struct platform_device brownstone_v_5vp_device = {
 153         .name           = "reg-fixed-voltage",
 154         .id             = 1,
 155         .dev = {
 156                 .platform_data = &brownstone_v_5vp,
 157         },
 158 };
 159
 160 static struct max8925_platform_data brownstone_max8925_info = {
 161         .irq_base               = IRQ_BOARD_START,
 162 };
 163
 164 static struct i2c_board_info brownstone_twsi1_info[] = {
 165         [0] = {
 166                 .type           = "max8649",
 167                 .addr           = 0x60,
 168                 .platform_data  = &brownstone_max8649_info,
 169         },
 170         [1] = {
 171                 .type           = "max8925",
 172                 .addr           = 0x3c,
 173                 .irq            = IRQ_MMP2_PMIC,
 174                 .platform_data  = &brownstone_max8925_info,
 175         },
 176 };
 177
 178 static struct sdhci_pxa_platdata mmp2_sdh_platdata_mmc0 = {
 179         .clk_delay_cycles = 0x1f,
 180 };
 181
 182 static struct sdhci_pxa_platdata mmp2_sdh_platdata_mmc2 = {
 183         .clk_delay_cycles = 0x1f,
 184         .flags = PXA_FLAG_CARD_PERMANENT
 185                 | PXA_FLAG_SD_8_BIT_CAPABLE_SLOT,
 186 };
 187
 188 static struct sram_platdata mmp2_asram_platdata = {
 189         .pool_name      = "asram",
 190         .granularity    = SRAM_GRANULARITY,
 191 };
 192
 193 static struct sram_platdata mmp2_isram_platdata = {
 194         .pool_name      = "isram",
 195         .granularity    = SRAM_GRANULARITY,
 196 };
 197
 198 static void __init brownstone_init(void)
 199 {
 200         mfp_config(ARRAY_AND_SIZE(brownstone_pin_config));
 201
 202         /* on-chip devices */
 203         mmp2_add_uart(1);
 204         mmp2_add_uart(3);
 205         platform_device_register(&mmp2_device_gpio);
 206         mmp2_add_twsi(1, NULL, ARRAY_AND_SIZE(brownstone_twsi1_info));
 207         mmp2_add_sdhost(0, &mmp2_sdh_platdata_mmc0); /* SD/MMC */
 208         mmp2_add_sdhost(2, &mmp2_sdh_platdata_mmc2); /* eMMC */
 209         mmp2_add_asram(&mmp2_asram_platdata);
 210         mmp2_add_isram(&mmp2_isram_platdata);
 211
 212         /* enable 5v regulator */
 213         platform_device_register(&brownstone_v_5vp_device);
 214 }
 215
 216 MACHINE_START(BROWNSTONE, "Brownstone Development Platform")
 217         /* Maintainer: Haojian Zhuang <haojian.zhuang@marvell.com> */
 218         .map_io         = mmp_map_io,
 219         .nr_irqs        = BROWNSTONE_NR_IRQS,
 220         .init_irq       = mmp2_init_irq,
 221         .timer          = &mmp2_timer,
 222         .init_machine   = brownstone_init,
 223         .restart        = mmp_restart,
 224 MACHINE_END