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  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21 #include <linux/gpio.h>
  22 #include <linux/gpio_keys.h>
  23 #include <linux/input.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/kernel.h>
  26 #include <linux/mfd/tmio.h>
  27 #include <linux/mmc/host.h>
  28 #include <linux/mmc/sh_mmcif.h>
  29 #include <linux/mmc/sh_mobile_sdhi.h>
  30 #include <linux/pinctrl/machine.h>
  31 #include <linux/platform_device.h>
  32 #include <linux/regulator/fixed.h>
  33 #include <linux/regulator/machine.h>
  34 #include <linux/sh_clk.h>
  35 #include <linux/smsc911x.h>
  36 #include <mach/common.h>
  37 #include <mach/irqs.h>
  38 #include <mach/r8a73a4.h>
  39 #include <asm/mach-types.h>
  40 #include <asm/mach/arch.h>
  41
  42 /* LEDS */
  43 static struct gpio_led ape6evm_leds[] = {
  44         {
  45                 .name           = "gnss-en",
  46                 .gpio           = 28,
  47                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
  48         }, {
  49                 .name           = "nfc-nrst",
  50                 .gpio           = 126,
  51                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
  52         }, {
  53                 .name           = "gnss-nrst",
  54                 .gpio           = 132,
  55                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
  56         }, {
  57                 .name           = "bt-wakeup",
  58                 .gpio           = 232,
  59                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
  60         }, {
  61                 .name           = "strobe",
  62                 .gpio           = 250,
  63                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
  64         }, {
  65                 .name           = "bbresetout",
  66                 .gpio           = 288,
  67                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
  68         },
  69 };
  70
  71 static __initdata struct gpio_led_platform_data ape6evm_leds_pdata = {
  72         .leds           = ape6evm_leds,
  73         .num_leds       = ARRAY_SIZE(ape6evm_leds),
  74 };
  75
  76 /* GPIO KEY */
  77 #define GPIO_KEY(c, g, d, ...) \
  78         { .code = c, .gpio = g, .desc = d, .active_low = 1 }
  79
  80 static struct gpio_keys_button gpio_buttons[] = {
  81         GPIO_KEY(KEY_0,                 324,    "S16"),
  82         GPIO_KEY(KEY_MENU,              325,    "S17"),
  83         GPIO_KEY(KEY_HOME,              326,    "S18"),
  84         GPIO_KEY(KEY_BACK,              327,    "S19"),
  85         GPIO_KEY(KEY_VOLUMEUP,          328,    "S20"),
  86         GPIO_KEY(KEY_VOLUMEDOWN,        329,    "S21"),
  87 };
  88
  89 static struct gpio_keys_platform_data ape6evm_keys_pdata __initdata = {
  90         .buttons        = gpio_buttons,
  91         .nbuttons       = ARRAY_SIZE(gpio_buttons),
  92 };
  93
  94 /* Dummy supplies, where voltage doesn't matter */
  95 static struct regulator_consumer_supply dummy_supplies[] = {
  96         REGULATOR_SUPPLY("vddvario", "smsc911x"),
  97         REGULATOR_SUPPLY("vdd33a", "smsc911x"),
  98 };
  99
 100 /* SMSC LAN9220 */
 101 static const struct resource lan9220_res[] __initconst = {
 102         DEFINE_RES_MEM(0x08000000, 0x1000),
 103         {
 104                 .start  = irq_pin(40), /* IRQ40 */
 105                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
 106         },
 107 };
 108
 109 static const struct smsc911x_platform_config lan9220_data __initconst = {
 110         .flags          = SMSC911X_USE_32BIT,
 111         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
 112         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
 113 };
 114
 115 /*
 116  * MMC0 power supplies:
 117  * Both Vcc and VccQ to eMMC on APE6EVM are supplied by a tps80032 voltage
 118  * regulator. Until support for it is added to this file we simulate the
 119  * Vcc supply by a fixed always-on regulator
 120  */
 121 static struct regulator_consumer_supply vcc_mmc0_consumers[] =
 122 {
 123         REGULATOR_SUPPLY("vmmc", "sh_mmcif.0"),
 124 };
 125
 126 /*
 127  * SDHI0 power supplies:
 128  * Vcc to SDHI0 on APE6EVM is supplied by a GPIO-switchable regulator. VccQ is
 129  * provided by the same tps80032 regulator as both MMC0 voltages - see comment
 130  * above
 131  */
 132 static struct regulator_consumer_supply vcc_sdhi0_consumers[] =
 133 {
 134         REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
 135 };
 136
 137 static struct regulator_init_data vcc_sdhi0_init_data = {
 138         .constraints = {
 139                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
 140         },
 141         .num_consumer_supplies  = ARRAY_SIZE(vcc_sdhi0_consumers),
 142         .consumer_supplies      = vcc_sdhi0_consumers,
 143 };
 144
 145 static const struct fixed_voltage_config vcc_sdhi0_info __initconst = {
 146         .supply_name = "SDHI0 Vcc",
 147         .microvolts = 3300000,
 148         .gpio = 76,
 149         .enable_high = 1,
 150         .init_data = &vcc_sdhi0_init_data,
 151 };
 152
 153 /*
 154  * SDHI1 power supplies:
 155  * Vcc and VccQ to SDHI1 on APE6EVM are both fixed at 3.3V
 156  */
 157 static struct regulator_consumer_supply vcc_sdhi1_consumers[] =
 158 {
 159         REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.1"),
 160 };
 161
 162 /* MMCIF */
 163 static const struct sh_mmcif_plat_data mmcif0_pdata __initconst = {
 164         .caps           = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
 165         .slave_id_tx    = SHDMA_SLAVE_MMCIF0_TX,
 166         .slave_id_rx    = SHDMA_SLAVE_MMCIF0_RX,
 167         .ccs_unsupported = true,
 168 };
 169
 170 static const struct resource mmcif0_resources[] __initconst = {
 171         DEFINE_RES_MEM(0xee200000, 0x100),
 172         DEFINE_RES_IRQ(gic_spi(169)),
 173 };
 174
 175 /* SDHI0 */
 176 static const struct sh_mobile_sdhi_info sdhi0_pdata __initconst = {
 177         .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE,
 178         .tmio_caps      = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
 179 };
 180
 181 static const struct resource sdhi0_resources[] __initconst = {
 182         DEFINE_RES_MEM(0xee100000, 0x100),
 183         DEFINE_RES_IRQ(gic_spi(165)),
 184 };
 185
 186 /* SDHI1 */
 187 static const struct sh_mobile_sdhi_info sdhi1_pdata __initconst = {
 188         .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE,
 189         .tmio_caps      = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
 190                           MMC_CAP_NEEDS_POLL,
 191 };
 192
 193 static const struct resource sdhi1_resources[] __initconst = {
 194         DEFINE_RES_MEM(0xee120000, 0x100),
 195         DEFINE_RES_IRQ(gic_spi(166)),
 196 };
 197
 198 static const struct pinctrl_map ape6evm_pinctrl_map[] __initconst = {
 199         /* SCIFA0 console */
 200         PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.0", "pfc-r8a73a4",
 201                                   "scifa0_data", "scifa0"),
 202         /* SMSC */
 203         PIN_MAP_MUX_GROUP_DEFAULT("smsc911x", "pfc-r8a73a4",
 204                                   "irqc_irq40", "irqc"),
 205         /* MMCIF0 */
 206         PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.0", "pfc-r8a73a4",
 207                                   "mmc0_data8", "mmc0"),
 208         PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.0", "pfc-r8a73a4",
 209                                   "mmc0_ctrl", "mmc0"),
 210         /* SDHI0: uSD: no WP */
 211         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
 212                                   "sdhi0_data4", "sdhi0"),
 213         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
 214                                   "sdhi0_ctrl", "sdhi0"),
 215         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
 216                                   "sdhi0_cd", "sdhi0"),
 217         /* SDHI1 */
 218         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a73a4",
 219                                   "sdhi1_data4", "sdhi1"),
 220         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a73a4",
 221                                   "sdhi1_ctrl", "sdhi1"),
 222 };
 223
 224 static void __init ape6evm_add_standard_devices(void)
 225 {
 226
 227         struct clk *parent;
 228         struct clk *mp;
 229
 230         r8a73a4_clock_init();
 231
 232         /* MP clock parent = extal2 */
 233         parent      = clk_get(NULL, "extal2");
 234         mp          = clk_get(NULL, "mp");
 235         BUG_ON(IS_ERR(parent) || IS_ERR(mp));
 236
 237         clk_set_parent(mp, parent);
 238         clk_put(parent);
 239         clk_put(mp);
 240
 241         pinctrl_register_mappings(ape6evm_pinctrl_map,
 242                                   ARRAY_SIZE(ape6evm_pinctrl_map));
 243         r8a73a4_pinmux_init();
 244         r8a73a4_add_standard_devices();
 245
 246         /* LAN9220 ethernet */
 247         gpio_request_one(270, GPIOF_OUT_INIT_HIGH, NULL); /* smsc9220 RESET */
 248
 249         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 250
 251         platform_device_register_resndata(&platform_bus, "smsc911x", -1,
 252                                           lan9220_res, ARRAY_SIZE(lan9220_res),
 253                                           &lan9220_data, sizeof(lan9220_data));
 254
 255         regulator_register_always_on(1, "MMC0 Vcc", vcc_mmc0_consumers,
 256                                      ARRAY_SIZE(vcc_mmc0_consumers), 2800000);
 257         platform_device_register_resndata(&platform_bus, "sh_mmcif", 0,
 258                                           mmcif0_resources, ARRAY_SIZE(mmcif0_resources),
 259                                           &mmcif0_pdata, sizeof(mmcif0_pdata));
 260         platform_device_register_data(&platform_bus, "reg-fixed-voltage", 2,
 261                                       &vcc_sdhi0_info, sizeof(vcc_sdhi0_info));
 262         platform_device_register_resndata(&platform_bus, "sh_mobile_sdhi", 0,
 263                                           sdhi0_resources, ARRAY_SIZE(sdhi0_resources),
 264                                           &sdhi0_pdata, sizeof(sdhi0_pdata));
 265         regulator_register_always_on(3, "SDHI1 Vcc", vcc_sdhi1_consumers,
 266                                      ARRAY_SIZE(vcc_sdhi1_consumers), 3300000);
 267         platform_device_register_resndata(&platform_bus, "sh_mobile_sdhi", 1,
 268                                           sdhi1_resources, ARRAY_SIZE(sdhi1_resources),
 269                                           &sdhi1_pdata, sizeof(sdhi1_pdata));
 270         platform_device_register_data(&platform_bus, "gpio-keys", -1,
 271                                       &ape6evm_keys_pdata,
 272                                       sizeof(ape6evm_keys_pdata));
 273         platform_device_register_data(&platform_bus, "leds-gpio", -1,
 274                                       &ape6evm_leds_pdata,
 275                                       sizeof(ape6evm_leds_pdata));
 276 }
 277
 278 static const char *ape6evm_boards_compat_dt[] __initdata = {
 279         "renesas,ape6evm",
 280         NULL,
 281 };
 282
 283 DT_MACHINE_START(APE6EVM_DT, "ape6evm")
 284         .init_early     = r8a73a4_init_early,
 285         .init_machine   = ape6evm_add_standard_devices,
 286         .dt_compat      = ape6evm_boards_compat_dt,
 287 MACHINE_END