arch/arm/mach-shmobile/board-ape6evm.c

   1 /*
   2  * APE6EVM board support
   3  *
   4  * Copyright (C) 2013  Renesas Solutions Corp.
   5  * Copyright (C) 2013  Magnus Damm
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 #include <linux/gpio.h>
  18 #include <linux/gpio_keys.h>
  19 #include <linux/input.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/kernel.h>
  22 #include <linux/mfd/tmio.h>
  23 #include <linux/mmc/host.h>
  24 #include <linux/mmc/sh_mmcif.h>
  25 #include <linux/mmc/sh_mobile_sdhi.h>
  26 #include <linux/pinctrl/machine.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/regulator/fixed.h>
  29 #include <linux/regulator/machine.h>
  30 #include <linux/sh_clk.h>
  31 #include <linux/smsc911x.h>
  32
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35
  36 #include "common.h"
  37 #include "irqs.h"
  38 #include "r8a73a4.h"
  39
  40 /* LEDS */
  41 static struct gpio_led ape6evm_leds[] = {
  42         {
  43                 .name           = "gnss-en",
  44                 .gpio           = 28,
  45                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
  46         }, {
  47                 .name           = "nfc-nrst",
  48                 .gpio           = 126,
  49                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
  50         }, {
  51                 .name           = "gnss-nrst",
  52                 .gpio           = 132,
  53                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
  54         }, {
  55                 .name           = "bt-wakeup",
  56                 .gpio           = 232,
  57                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
  58         }, {
  59                 .name           = "strobe",
  60                 .gpio           = 250,
  61                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
  62         }, {
  63                 .name           = "bbresetout",
  64                 .gpio           = 288,
  65                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
  66         },
  67 };
  68
  69 static __initdata struct gpio_led_platform_data ape6evm_leds_pdata = {
  70         .leds           = ape6evm_leds,
  71         .num_leds       = ARRAY_SIZE(ape6evm_leds),
  72 };
  73
  74 /* GPIO KEY */
  75 #define GPIO_KEY(c, g, d, ...) \
  76         { .code = c, .gpio = g, .desc = d, .active_low = 1 }
  77
  78 static struct gpio_keys_button gpio_buttons[] = {
  79         GPIO_KEY(KEY_0,                 324,    "S16"),
  80         GPIO_KEY(KEY_MENU,              325,    "S17"),
  81         GPIO_KEY(KEY_HOME,              326,    "S18"),
  82         GPIO_KEY(KEY_BACK,              327,    "S19"),
  83         GPIO_KEY(KEY_VOLUMEUP,          328,    "S20"),
  84         GPIO_KEY(KEY_VOLUMEDOWN,        329,    "S21"),
  85 };
  86
  87 static struct gpio_keys_platform_data ape6evm_keys_pdata __initdata = {
  88         .buttons        = gpio_buttons,
  89         .nbuttons       = ARRAY_SIZE(gpio_buttons),
  90 };
  91
  92 /* Dummy supplies, where voltage doesn't matter */
  93 static struct regulator_consumer_supply dummy_supplies[] = {
  94         REGULATOR_SUPPLY("vddvario", "smsc911x"),
  95         REGULATOR_SUPPLY("vdd33a", "smsc911x"),
  96 };
  97
  98 /* SMSC LAN9220 */
  99 static const struct resource lan9220_res[] __initconst = {
 100         DEFINE_RES_MEM(0x08000000, 0x1000),
 101         {
 102                 .start  = irq_pin(40), /* IRQ40 */
 103                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
 104         },
 105 };
 106
 107 static const struct smsc911x_platform_config lan9220_data __initconst = {
 108         .flags          = SMSC911X_USE_32BIT,
 109         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
 110         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
 111 };
 112
 113 /*
 114  * MMC0 power supplies:
 115  * Both Vcc and VccQ to eMMC on APE6EVM are supplied by a tps80032 voltage
 116  * regulator. Until support for it is added to this file we simulate the
 117  * Vcc supply by a fixed always-on regulator
 118  */
 119 static struct regulator_consumer_supply vcc_mmc0_consumers[] =
 120 {
 121         REGULATOR_SUPPLY("vmmc", "sh_mmcif.0"),
 122 };
 123
 124 /*
 125  * SDHI0 power supplies:
 126  * Vcc to SDHI0 on APE6EVM is supplied by a GPIO-switchable regulator. VccQ is
 127  * provided by the same tps80032 regulator as both MMC0 voltages - see comment
 128  * above
 129  */
 130 static struct regulator_consumer_supply vcc_sdhi0_consumers[] =
 131 {
 132         REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
 133 };
 134
 135 static struct regulator_init_data vcc_sdhi0_init_data = {
 136         .constraints = {
 137                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
 138         },
 139         .num_consumer_supplies  = ARRAY_SIZE(vcc_sdhi0_consumers),
 140         .consumer_supplies      = vcc_sdhi0_consumers,
 141 };
 142
 143 static const struct fixed_voltage_config vcc_sdhi0_info __initconst = {
 144         .supply_name = "SDHI0 Vcc",
 145         .microvolts = 3300000,
 146         .gpio = 76,
 147         .enable_high = 1,
 148         .init_data = &vcc_sdhi0_init_data,
 149 };
 150
 151 /*
 152  * SDHI1 power supplies:
 153  * Vcc and VccQ to SDHI1 on APE6EVM are both fixed at 3.3V
 154  */
 155 static struct regulator_consumer_supply vcc_sdhi1_consumers[] =
 156 {
 157         REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.1"),
 158 };
 159
 160 /* MMCIF */
 161 static const struct sh_mmcif_plat_data mmcif0_pdata __initconst = {
 162         .caps           = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
 163         .slave_id_tx    = SHDMA_SLAVE_MMCIF0_TX,
 164         .slave_id_rx    = SHDMA_SLAVE_MMCIF0_RX,
 165         .ccs_unsupported = true,
 166 };
 167
 168 static const struct resource mmcif0_resources[] __initconst = {
 169         DEFINE_RES_MEM(0xee200000, 0x100),
 170         DEFINE_RES_IRQ(gic_spi(169)),
 171 };
 172
 173 /* SDHI0 */
 174 static const struct sh_mobile_sdhi_info sdhi0_pdata __initconst = {
 175         .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE,
 176         .tmio_caps      = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
 177 };
 178
 179 static const struct resource sdhi0_resources[] __initconst = {
 180         DEFINE_RES_MEM(0xee100000, 0x100),
 181         DEFINE_RES_IRQ(gic_spi(165)),
 182 };
 183
 184 /* SDHI1 */
 185 static const struct sh_mobile_sdhi_info sdhi1_pdata __initconst = {
 186         .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE,
 187         .tmio_caps      = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
 188                           MMC_CAP_NEEDS_POLL,
 189 };
 190
 191 static const struct resource sdhi1_resources[] __initconst = {
 192         DEFINE_RES_MEM(0xee120000, 0x100),
 193         DEFINE_RES_IRQ(gic_spi(166)),
 194 };
 195
 196 static const struct pinctrl_map ape6evm_pinctrl_map[] __initconst = {
 197         /* SCIFA0 console */
 198         PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.0", "pfc-r8a73a4",
 199                                   "scifa0_data", "scifa0"),
 200         /* SMSC */
 201         PIN_MAP_MUX_GROUP_DEFAULT("smsc911x", "pfc-r8a73a4",
 202                                   "irqc_irq40", "irqc"),
 203         /* MMCIF0 */
 204         PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.0", "pfc-r8a73a4",
 205                                   "mmc0_data8", "mmc0"),
 206         PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.0", "pfc-r8a73a4",
 207                                   "mmc0_ctrl", "mmc0"),
 208         /* SDHI0: uSD: no WP */
 209         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
 210                                   "sdhi0_data4", "sdhi0"),
 211         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
 212                                   "sdhi0_ctrl", "sdhi0"),
 213         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
 214                                   "sdhi0_cd", "sdhi0"),
 215         /* SDHI1 */
 216         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a73a4",
 217                                   "sdhi1_data4", "sdhi1"),
 218         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a73a4",
 219                                   "sdhi1_ctrl", "sdhi1"),
 220 };
 221
 222 static void __init ape6evm_add_standard_devices(void)
 223 {
 224
 225         struct clk *parent;
 226         struct clk *mp;
 227
 228         r8a73a4_clock_init();
 229
 230         /* MP clock parent = extal2 */
 231         parent      = clk_get(NULL, "extal2");
 232         mp          = clk_get(NULL, "mp");
 233         BUG_ON(IS_ERR(parent) || IS_ERR(mp));
 234
 235         clk_set_parent(mp, parent);
 236         clk_put(parent);
 237         clk_put(mp);
 238
 239         pinctrl_register_mappings(ape6evm_pinctrl_map,
 240                                   ARRAY_SIZE(ape6evm_pinctrl_map));
 241         r8a73a4_pinmux_init();
 242         r8a73a4_add_standard_devices();
 243
 244         /* LAN9220 ethernet */
 245         gpio_request_one(270, GPIOF_OUT_INIT_HIGH, NULL); /* smsc9220 RESET */
 246
 247         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 248
 249         platform_device_register_resndata(NULL, "smsc911x", -1,
 250                                           lan9220_res, ARRAY_SIZE(lan9220_res),
 251                                           &lan9220_data, sizeof(lan9220_data));
 252
 253         regulator_register_always_on(1, "MMC0 Vcc", vcc_mmc0_consumers,
 254                                      ARRAY_SIZE(vcc_mmc0_consumers), 2800000);
 255         platform_device_register_resndata(NULL, "sh_mmcif", 0,
 256                                           mmcif0_resources, ARRAY_SIZE(mmcif0_resources),
 257                                           &mmcif0_pdata, sizeof(mmcif0_pdata));
 258         platform_device_register_data(NULL, "reg-fixed-voltage", 2,
 259                                       &vcc_sdhi0_info, sizeof(vcc_sdhi0_info));
 260         platform_device_register_resndata(NULL, "sh_mobile_sdhi", 0,
 261                                           sdhi0_resources, ARRAY_SIZE(sdhi0_resources),
 262                                           &sdhi0_pdata, sizeof(sdhi0_pdata));
 263         regulator_register_always_on(3, "SDHI1 Vcc", vcc_sdhi1_consumers,
 264                                      ARRAY_SIZE(vcc_sdhi1_consumers), 3300000);
 265         platform_device_register_resndata(NULL, "sh_mobile_sdhi", 1,
 266                                           sdhi1_resources, ARRAY_SIZE(sdhi1_resources),
 267                                           &sdhi1_pdata, sizeof(sdhi1_pdata));
 268         platform_device_register_data(NULL, "gpio-keys", -1,
 269                                       &ape6evm_keys_pdata,
 270                                       sizeof(ape6evm_keys_pdata));
 271         platform_device_register_data(NULL, "leds-gpio", -1,
 272                                       &ape6evm_leds_pdata,
 273                                       sizeof(ape6evm_leds_pdata));
 274 }
 275
 276 static const char *ape6evm_boards_compat_dt[] __initdata = {
 277         "renesas,ape6evm",
 278         NULL,
 279 };
 280
 281 DT_MACHINE_START(APE6EVM_DT, "ape6evm")
 282         .init_early     = shmobile_init_delay,
 283         .init_machine   = ape6evm_add_standard_devices,
 284         .init_late      = shmobile_init_late,
 285         .dt_compat      = ape6evm_boards_compat_dt,
 286 MACHINE_END