kernel/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/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 <mach/addr-map.h>
  26 #include <mach/mfp-mmp2.h>
  27 #include <mach/mmp2.h>
  28 #include <mach/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
  36 static 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
 108 static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
 109         .irq_base       = MMP_GPIO_TO_IRQ(0),
 110 };
 111
 112 static struct regulator_consumer_supply max8649_supply[] = {
 113         REGULATOR_SUPPLY("vcc_core", NULL),
 114 };
 115
 116 static 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
 129 static 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
 136 static struct regulator_consumer_supply brownstone_v_5vp_supplies[] = {
 137         REGULATOR_SUPPLY("v_5vp", NULL),
 138 };
 139
 140 static 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
 148 static 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
 157 static 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
 165 static struct max8925_platform_data brownstone_max8925_info = {
 166         .irq_base               = MMP_NR_IRQS,
 167 };
 168
 169 static 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
 183 static struct sdhci_pxa_platdata mmp2_sdh_platdata_mmc0 = {
 184         .clk_delay_cycles = 0x1f,
 185 };
 186
 187 static 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
 193 static struct sram_platdata mmp2_asram_platdata = {
 194         .pool_name      = "asram",
 195         .granularity    = SRAM_GRANULARITY,
 196 };
 197
 198 static struct sram_platdata mmp2_isram_platdata = {
 199         .pool_name      = "isram",
 200         .granularity    = SRAM_GRANULARITY,
 201 };
 202
 203 static 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
 223 MACHINE_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,
 231 MACHINE_END