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/gpio-pxa.h>
  18 #include <linux/gpio/machine.h>
  19 #include <linux/regulator/machine.h>
  20 #include <linux/regulator/max8649.h>
  21 #include <linux/regulator/fixed.h>
  22 #include <linux/mfd/max8925.h>
  23
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26 #include "addr-map.h"
  27 #include "mfp-mmp2.h"
  28 #include "mmp2.h"
  29 #include "irqs.h"
  30
  31 #include "common.h"
  32
  33 #define BROWNSTONE_NR_IRQS      (MMP_NR_IRQS + 40)
  34
  35 #define GPIO_5V_ENABLE          (89)
  36
  37 static unsigned long brownstone_pin_config[] __initdata = {
  38         /* UART1 */
  39         GPIO29_UART1_RXD,
  40         GPIO30_UART1_TXD,
  41
  42         /* UART3 */
  43         GPIO51_UART3_RXD,
  44         GPIO52_UART3_TXD,
  45
  46         /* DFI */
  47         GPIO168_DFI_D0,
  48         GPIO167_DFI_D1,
  49         GPIO166_DFI_D2,
  50         GPIO165_DFI_D3,
  51         GPIO107_DFI_D4,
  52         GPIO106_DFI_D5,
  53         GPIO105_DFI_D6,
  54         GPIO104_DFI_D7,
  55         GPIO111_DFI_D8,
  56         GPIO164_DFI_D9,
  57         GPIO163_DFI_D10,
  58         GPIO162_DFI_D11,
  59         GPIO161_DFI_D12,
  60         GPIO110_DFI_D13,
  61         GPIO109_DFI_D14,
  62         GPIO108_DFI_D15,
  63         GPIO143_ND_nCS0,
  64         GPIO144_ND_nCS1,
  65         GPIO147_ND_nWE,
  66         GPIO148_ND_nRE,
  67         GPIO150_ND_ALE,
  68         GPIO149_ND_CLE,
  69         GPIO112_ND_RDY0,
  70         GPIO160_ND_RDY1,
  71
  72         /* PMIC */
  73         PMIC_PMIC_INT | MFP_LPM_EDGE_FALL,
  74
  75         /* MMC0 */
  76         GPIO131_MMC1_DAT3 | MFP_PULL_HIGH,
  77         GPIO132_MMC1_DAT2 | MFP_PULL_HIGH,
  78         GPIO133_MMC1_DAT1 | MFP_PULL_HIGH,
  79         GPIO134_MMC1_DAT0 | MFP_PULL_HIGH,
  80         GPIO136_MMC1_CMD | MFP_PULL_HIGH,
  81         GPIO139_MMC1_CLK,
  82         GPIO140_MMC1_CD | MFP_PULL_LOW,
  83         GPIO141_MMC1_WP | MFP_PULL_LOW,
  84
  85         /* MMC1 */
  86         GPIO37_MMC2_DAT3 | MFP_PULL_HIGH,
  87         GPIO38_MMC2_DAT2 | MFP_PULL_HIGH,
  88         GPIO39_MMC2_DAT1 | MFP_PULL_HIGH,
  89         GPIO40_MMC2_DAT0 | MFP_PULL_HIGH,
  90         GPIO41_MMC2_CMD | MFP_PULL_HIGH,
  91         GPIO42_MMC2_CLK,
  92
  93         /* MMC2 */
  94         GPIO165_MMC3_DAT7 | MFP_PULL_HIGH,
  95         GPIO162_MMC3_DAT6 | MFP_PULL_HIGH,
  96         GPIO166_MMC3_DAT5 | MFP_PULL_HIGH,
  97         GPIO163_MMC3_DAT4 | MFP_PULL_HIGH,
  98         GPIO167_MMC3_DAT3 | MFP_PULL_HIGH,
  99         GPIO164_MMC3_DAT2 | MFP_PULL_HIGH,
 100         GPIO168_MMC3_DAT1 | MFP_PULL_HIGH,
 101         GPIO111_MMC3_DAT0 | MFP_PULL_HIGH,
 102         GPIO112_MMC3_CMD | MFP_PULL_HIGH,
 103         GPIO151_MMC3_CLK,
 104
 105         /* 5V regulator */
 106         GPIO89_GPIO,
 107 };
 108
 109 static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
 110         .irq_base       = MMP_GPIO_TO_IRQ(0),
 111 };
 112
 113 static struct regulator_consumer_supply max8649_supply[] = {
 114         REGULATOR_SUPPLY("vcc_core", NULL),
 115 };
 116
 117 static struct regulator_init_data max8649_init_data = {
 118         .constraints    = {
 119                 .name           = "vcc_core range",
 120                 .min_uV         = 1150000,
 121                 .max_uV         = 1280000,
 122                 .always_on      = 1,
 123                 .boot_on        = 1,
 124                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 125         },
 126         .num_consumer_supplies  = 1,
 127         .consumer_supplies      = &max8649_supply[0],
 128 };
 129
 130 static struct max8649_platform_data brownstone_max8649_info = {
 131         .mode           = 2,    /* VID1 = 1, VID0 = 0 */
 132         .extclk         = 0,
 133         .ramp_timing    = MAX8649_RAMP_32MV,
 134         .regulator      = &max8649_init_data,
 135 };
 136
 137 static struct regulator_consumer_supply brownstone_v_5vp_supplies[] = {
 138         REGULATOR_SUPPLY("v_5vp", NULL),
 139 };
 140
 141 static struct regulator_init_data brownstone_v_5vp_data = {
 142         .constraints    = {
 143                 .valid_ops_mask         = REGULATOR_CHANGE_STATUS,
 144         },
 145         .num_consumer_supplies  = ARRAY_SIZE(brownstone_v_5vp_supplies),
 146         .consumer_supplies      = brownstone_v_5vp_supplies,
 147 };
 148
 149 static struct fixed_voltage_config brownstone_v_5vp = {
 150         .supply_name            = "v_5vp",
 151         .microvolts             = 5000000,
 152         .enabled_at_boot        = 1,
 153         .init_data              = &brownstone_v_5vp_data,
 154 };
 155
 156 static struct platform_device brownstone_v_5vp_device = {
 157         .name           = "reg-fixed-voltage",
 158         .id             = 1,
 159         .dev = {
 160                 .platform_data = &brownstone_v_5vp,
 161         },
 162 };
 163
 164 static struct gpiod_lookup_table brownstone_v_5vp_gpiod_table = {
 165         .dev_id = "reg-fixed-voltage.1", /* .id set to 1 above */
 166         .table = {
 167                 GPIO_LOOKUP("gpio-pxa", GPIO_5V_ENABLE,
 168                             NULL, GPIO_ACTIVE_HIGH),
 169                 { },
 170         },
 171 };
 172
 173 static struct max8925_platform_data brownstone_max8925_info = {
 174         .irq_base               = MMP_NR_IRQS,
 175 };
 176
 177 static struct i2c_board_info brownstone_twsi1_info[] = {
 178         [0] = {
 179                 .type           = "max8649",
 180                 .addr           = 0x60,
 181                 .platform_data  = &brownstone_max8649_info,
 182         },
 183         [1] = {
 184                 .type           = "max8925",
 185                 .addr           = 0x3c,
 186                 .irq            = IRQ_MMP2_PMIC,
 187                 .platform_data  = &brownstone_max8925_info,
 188         },
 189 };
 190
 191 static struct sdhci_pxa_platdata mmp2_sdh_platdata_mmc0 = {
 192         .clk_delay_cycles = 0x1f,
 193 };
 194
 195 static struct sdhci_pxa_platdata mmp2_sdh_platdata_mmc2 = {
 196         .clk_delay_cycles = 0x1f,
 197         .flags = PXA_FLAG_CARD_PERMANENT
 198                 | PXA_FLAG_SD_8_BIT_CAPABLE_SLOT,
 199 };
 200
 201 static struct sram_platdata mmp2_asram_platdata = {
 202         .pool_name      = "asram",
 203         .granularity    = SRAM_GRANULARITY,
 204 };
 205
 206 static struct sram_platdata mmp2_isram_platdata = {
 207         .pool_name      = "isram",
 208         .granularity    = SRAM_GRANULARITY,
 209 };
 210
 211 static void __init brownstone_init(void)
 212 {
 213         mfp_config(ARRAY_AND_SIZE(brownstone_pin_config));
 214
 215         /* on-chip devices */
 216         mmp2_add_uart(1);
 217         mmp2_add_uart(3);
 218         platform_device_add_data(&mmp2_device_gpio, &mmp2_gpio_pdata,
 219                                  sizeof(struct pxa_gpio_platform_data));
 220         platform_device_register(&mmp2_device_gpio);
 221         mmp2_add_twsi(1, NULL, ARRAY_AND_SIZE(brownstone_twsi1_info));
 222         mmp2_add_sdhost(0, &mmp2_sdh_platdata_mmc0); /* SD/MMC */
 223         mmp2_add_sdhost(2, &mmp2_sdh_platdata_mmc2); /* eMMC */
 224         mmp2_add_asram(&mmp2_asram_platdata);
 225         mmp2_add_isram(&mmp2_isram_platdata);
 226
 227         /* enable 5v regulator */
 228         gpiod_add_lookup_table(&brownstone_v_5vp_gpiod_table);
 229         platform_device_register(&brownstone_v_5vp_device);
 230 }
 231
 232 MACHINE_START(BROWNSTONE, "Brownstone Development Platform")
 233         /* Maintainer: Haojian Zhuang <haojian.zhuang@marvell.com> */
 234         .map_io         = mmp_map_io,
 235         .nr_irqs        = BROWNSTONE_NR_IRQS,
 236         .init_irq       = mmp2_init_irq,
 237         .init_time      = mmp2_timer_init,
 238         .init_machine   = brownstone_init,
 239         .restart        = mmp_restart,
 240 MACHINE_END