66f67816a844623977a4595ef23642ed381b3549
[sfrench/cifs-2.6.git] / 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