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 __initdata gpio_keys_platform_data ape6evm_keys_pdata = {
  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  * On APE6EVM power is supplied to MMCIF by a tps80032 regulator. For now we
 117  * model a VDD supply to MMCIF, using a fixed 3.3V regulator. Also use the
 118  * static power supply for SDHI0 and SDHI1, whereas SDHI0's VccQ is also
 119  * supplied by the same tps80032 regulator and thus can also be adjusted
 120  * dynamically.
 121  */
 122 static struct regulator_consumer_supply fixed3v3_power_consumers[] =
 123 {
 124         REGULATOR_SUPPLY("vmmc", "sh_mmcif.0"),
 125         REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
 126         REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.1"),
 127 };
 128
 129 /* MMCIF */
 130 static const struct sh_mmcif_plat_data mmcif0_pdata __initconst = {
 131         .caps           = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
 132 };
 133
 134 static const struct resource mmcif0_resources[] __initconst = {
 135         DEFINE_RES_MEM_NAMED(0xee200000, 0x100, "MMCIF0"),
 136         DEFINE_RES_IRQ(gic_spi(169)),
 137 };
 138
 139 /* SDHI0 */
 140 static const struct sh_mobile_sdhi_info sdhi0_pdata __initconst = {
 141         .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE,
 142         .tmio_caps      = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
 143 };
 144
 145 static const struct resource sdhi0_resources[] __initconst = {
 146         DEFINE_RES_MEM_NAMED(0xee100000, 0x100, "SDHI0"),
 147         DEFINE_RES_IRQ(gic_spi(165)),
 148 };
 149
 150 /* SDHI1 */
 151 static const struct sh_mobile_sdhi_info sdhi1_pdata __initconst = {
 152         .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE,
 153         .tmio_caps      = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
 154                           MMC_CAP_NEEDS_POLL,
 155 };
 156
 157 static const struct resource sdhi1_resources[] __initconst = {
 158         DEFINE_RES_MEM_NAMED(0xee120000, 0x100, "SDHI1"),
 159         DEFINE_RES_IRQ(gic_spi(166)),
 160 };
 161
 162 static const struct pinctrl_map ape6evm_pinctrl_map[] __initconst = {
 163         /* SCIFA0 console */
 164         PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.0", "pfc-r8a73a4",
 165                                   "scifa0_data", "scifa0"),
 166         /* SMSC */
 167         PIN_MAP_MUX_GROUP_DEFAULT("smsc911x", "pfc-r8a73a4",
 168                                   "irqc_irq40", "irqc"),
 169         /* MMCIF0 */
 170         PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.0", "pfc-r8a73a4",
 171                                   "mmc0_data8", "mmc0"),
 172         PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.0", "pfc-r8a73a4",
 173                                   "mmc0_ctrl", "mmc0"),
 174         /* SDHI0: uSD: no WP */
 175         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
 176                                   "sdhi0_data4", "sdhi0"),
 177         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
 178                                   "sdhi0_ctrl", "sdhi0"),
 179         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
 180                                   "sdhi0_cd", "sdhi0"),
 181         /* SDHI1 */
 182         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a73a4",
 183                                   "sdhi1_data4", "sdhi1"),
 184         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a73a4",
 185                                   "sdhi1_ctrl", "sdhi1"),
 186 };
 187
 188 static void __init ape6evm_add_standard_devices(void)
 189 {
 190
 191         struct clk *parent;
 192         struct clk *mp;
 193
 194         r8a73a4_clock_init();
 195
 196         /* MP clock parent = extal2 */
 197         parent      = clk_get(NULL, "extal2");
 198         mp          = clk_get(NULL, "mp");
 199         BUG_ON(IS_ERR(parent) || IS_ERR(mp));
 200
 201         clk_set_parent(mp, parent);
 202         clk_put(parent);
 203         clk_put(mp);
 204
 205         pinctrl_register_mappings(ape6evm_pinctrl_map,
 206                                   ARRAY_SIZE(ape6evm_pinctrl_map));
 207         r8a73a4_pinmux_init();
 208         r8a73a4_add_standard_devices();
 209
 210         /* LAN9220 ethernet */
 211         gpio_request_one(270, GPIOF_OUT_INIT_HIGH, NULL); /* smsc9220 RESET */
 212
 213         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 214
 215         platform_device_register_resndata(&platform_bus, "smsc911x", -1,
 216                                           lan9220_res, ARRAY_SIZE(lan9220_res),
 217                                           &lan9220_data, sizeof(lan9220_data));
 218         regulator_register_always_on(1, "fixed-3.3V", fixed3v3_power_consumers,
 219                                      ARRAY_SIZE(fixed3v3_power_consumers), 3300000);
 220         platform_device_register_resndata(&platform_bus, "sh_mmcif", 0,
 221                                           mmcif0_resources, ARRAY_SIZE(mmcif0_resources),
 222                                           &mmcif0_pdata, sizeof(mmcif0_pdata));
 223         platform_device_register_resndata(&platform_bus, "sh_mobile_sdhi", 0,
 224                                           sdhi0_resources, ARRAY_SIZE(sdhi0_resources),
 225                                           &sdhi0_pdata, sizeof(sdhi0_pdata));
 226         platform_device_register_resndata(&platform_bus, "sh_mobile_sdhi", 1,
 227                                           sdhi1_resources, ARRAY_SIZE(sdhi1_resources),
 228                                           &sdhi1_pdata, sizeof(sdhi1_pdata));
 229         platform_device_register_data(&platform_bus, "gpio-keys", -1,
 230                                       &ape6evm_keys_pdata,
 231                                       sizeof(ape6evm_keys_pdata));
 232         platform_device_register_data(&platform_bus, "leds-gpio", -1,
 233                                       &ape6evm_leds_pdata,
 234                                       sizeof(ape6evm_leds_pdata));
 235 }
 236
 237 static const char *ape6evm_boards_compat_dt[] __initdata = {
 238         "renesas,ape6evm",
 239         NULL,
 240 };
 241
 242 DT_MACHINE_START(APE6EVM_DT, "ape6evm")
 243         .init_early     = r8a73a4_init_delay,
 244         .init_machine   = ape6evm_add_standard_devices,
 245         .dt_compat      = ape6evm_boards_compat_dt,
 246 MACHINE_END