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 /* GPIO KEY */
  43 #define GPIO_KEY(c, g, d, ...) \
  44         { .code = c, .gpio = g, .desc = d, .active_low = 1 }
  45
  46 static struct gpio_keys_button gpio_buttons[] = {
  47         GPIO_KEY(KEY_0,                 324,    "S16"),
  48         GPIO_KEY(KEY_MENU,              325,    "S17"),
  49         GPIO_KEY(KEY_HOME,              326,    "S18"),
  50         GPIO_KEY(KEY_BACK,              327,    "S19"),
  51         GPIO_KEY(KEY_VOLUMEUP,          328,    "S20"),
  52         GPIO_KEY(KEY_VOLUMEDOWN,        329,    "S21"),
  53 };
  54
  55 static struct __initdata gpio_keys_platform_data ape6evm_keys_pdata = {
  56         .buttons        = gpio_buttons,
  57         .nbuttons       = ARRAY_SIZE(gpio_buttons),
  58 };
  59
  60 /* Dummy supplies, where voltage doesn't matter */
  61 static struct regulator_consumer_supply dummy_supplies[] = {
  62         REGULATOR_SUPPLY("vddvario", "smsc911x"),
  63         REGULATOR_SUPPLY("vdd33a", "smsc911x"),
  64 };
  65
  66 /* SMSC LAN9220 */
  67 static const struct resource lan9220_res[] = {
  68         DEFINE_RES_MEM(0x08000000, 0x1000),
  69         {
  70                 .start  = irq_pin(40), /* IRQ40 */
  71                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
  72         },
  73 };
  74
  75 static const struct smsc911x_platform_config lan9220_data = {
  76         .flags          = SMSC911X_USE_32BIT,
  77         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
  78         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
  79 };
  80
  81 /*
  82  * On APE6EVM power is supplied to MMCIF by a tps80032 regulator. For now we
  83  * model a VDD supply to MMCIF, using a fixed 3.3V regulator. Also use the
  84  * static power supply for SDHI0 and SDHI1, whereas SDHI0's VccQ is also
  85  * supplied by the same tps80032 regulator and thus can also be adjusted
  86  * dynamically.
  87  */
  88 static struct regulator_consumer_supply fixed3v3_power_consumers[] =
  89 {
  90         REGULATOR_SUPPLY("vmmc", "sh_mmcif.0"),
  91         REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
  92         REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.1"),
  93 };
  94
  95 /* MMCIF */
  96 static struct sh_mmcif_plat_data mmcif0_pdata = {
  97         .caps           = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
  98 };
  99
 100 static struct resource mmcif0_resources[] = {
 101         DEFINE_RES_MEM_NAMED(0xee200000, 0x100, "MMCIF0"),
 102         DEFINE_RES_IRQ(gic_spi(169)),
 103 };
 104
 105 /* SDHI0 */
 106 static struct sh_mobile_sdhi_info sdhi0_pdata = {
 107         .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE,
 108         .tmio_caps      = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
 109 };
 110
 111 static struct resource sdhi0_resources[] = {
 112         DEFINE_RES_MEM_NAMED(0xee100000, 0x100, "SDHI0"),
 113         DEFINE_RES_IRQ(gic_spi(165)),
 114 };
 115
 116 /* SDHI1 */
 117 static struct sh_mobile_sdhi_info sdhi1_pdata = {
 118         .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE,
 119         .tmio_caps      = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
 120                           MMC_CAP_NEEDS_POLL,
 121 };
 122
 123 static struct resource sdhi1_resources[] = {
 124         DEFINE_RES_MEM_NAMED(0xee120000, 0x100, "SDHI1"),
 125         DEFINE_RES_IRQ(gic_spi(166)),
 126 };
 127
 128 static const struct pinctrl_map ape6evm_pinctrl_map[] = {
 129         /* SCIFA0 console */
 130         PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.0", "pfc-r8a73a4",
 131                                   "scifa0_data", "scifa0"),
 132         /* SMSC */
 133         PIN_MAP_MUX_GROUP_DEFAULT("smsc911x", "pfc-r8a73a4",
 134                                   "irqc_irq40", "irqc"),
 135         /* MMCIF0 */
 136         PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.0", "pfc-r8a73a4",
 137                                   "mmc0_data8", "mmc0"),
 138         PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.0", "pfc-r8a73a4",
 139                                   "mmc0_ctrl", "mmc0"),
 140         /* SDHI0: uSD: no WP */
 141         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
 142                                   "sdhi0_data4", "sdhi0"),
 143         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
 144                                   "sdhi0_ctrl", "sdhi0"),
 145         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
 146                                   "sdhi0_cd", "sdhi0"),
 147         /* SDHI1 */
 148         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a73a4",
 149                                   "sdhi1_data4", "sdhi1"),
 150         PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a73a4",
 151                                   "sdhi1_ctrl", "sdhi1"),
 152 };
 153
 154 static void __init ape6evm_add_standard_devices(void)
 155 {
 156
 157         struct clk *parent;
 158         struct clk *mp;
 159
 160         r8a73a4_clock_init();
 161
 162         /* MP clock parent = extal2 */
 163         parent      = clk_get(NULL, "extal2");
 164         mp          = clk_get(NULL, "mp");
 165         BUG_ON(IS_ERR(parent) || IS_ERR(mp));
 166
 167         clk_set_parent(mp, parent);
 168         clk_put(parent);
 169         clk_put(mp);
 170
 171         pinctrl_register_mappings(ape6evm_pinctrl_map,
 172                                   ARRAY_SIZE(ape6evm_pinctrl_map));
 173         r8a73a4_pinmux_init();
 174         r8a73a4_add_standard_devices();
 175
 176         /* LAN9220 ethernet */
 177         gpio_request_one(270, GPIOF_OUT_INIT_HIGH, NULL); /* smsc9220 RESET */
 178
 179         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 180
 181         platform_device_register_resndata(&platform_bus, "smsc911x", -1,
 182                                           lan9220_res, ARRAY_SIZE(lan9220_res),
 183                                           &lan9220_data, sizeof(lan9220_data));
 184         regulator_register_always_on(1, "fixed-3.3V", fixed3v3_power_consumers,
 185                                      ARRAY_SIZE(fixed3v3_power_consumers), 3300000);
 186         platform_device_register_resndata(&platform_bus, "sh_mmcif", 0,
 187                                           mmcif0_resources, ARRAY_SIZE(mmcif0_resources),
 188                                           &mmcif0_pdata, sizeof(mmcif0_pdata));
 189         platform_device_register_resndata(&platform_bus, "sh_mobile_sdhi", 0,
 190                                           sdhi0_resources, ARRAY_SIZE(sdhi0_resources),
 191                                           &sdhi0_pdata, sizeof(sdhi0_pdata));
 192         platform_device_register_resndata(&platform_bus, "sh_mobile_sdhi", 1,
 193                                           sdhi1_resources, ARRAY_SIZE(sdhi1_resources),
 194                                           &sdhi1_pdata, sizeof(sdhi1_pdata));
 195         platform_device_register_data(&platform_bus, "gpio-keys", -1,
 196                                       &ape6evm_keys_pdata,
 197                                       sizeof(ape6evm_keys_pdata));
 198 }
 199
 200 static const char *ape6evm_boards_compat_dt[] __initdata = {
 201         "renesas,ape6evm",
 202         NULL,
 203 };
 204
 205 DT_MACHINE_START(APE6EVM_DT, "ape6evm")
 206         .init_early     = r8a73a4_init_delay,
 207         .init_time      = shmobile_timer_init,
 208         .init_machine   = ape6evm_add_standard_devices,
 209         .dt_compat      = ape6evm_boards_compat_dt,
 210 MACHINE_END