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