Merge tag 'renesas-soc-fixes3-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel...
[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/irqchip.h>
22 #include <linux/irqchip/arm-gic.h>
23 #include <linux/kernel.h>
24 #include <linux/mfd/tmio.h>
25 #include <linux/mmc/host.h>
26 #include <linux/mmc/sh_mmcif.h>
27 #include <linux/mmc/sh_mobile_sdhi.h>
28 #include <linux/pinctrl/machine.h>
29 #include <linux/platform_device.h>
30 #include <linux/regulator/fixed.h>
31 #include <linux/regulator/machine.h>
32 #include <linux/sh_clk.h>
33 #include <linux/smsc911x.h>
34
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37
38 #include "common.h"
39 #include "irqs.h"
40 #include "r8a73a4.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(NULL, "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(NULL, "sh_mmcif", 0,
258                                           mmcif0_resources, ARRAY_SIZE(mmcif0_resources),
259                                           &mmcif0_pdata, sizeof(mmcif0_pdata));
260         platform_device_register_data(NULL, "reg-fixed-voltage", 2,
261                                       &vcc_sdhi0_info, sizeof(vcc_sdhi0_info));
262         platform_device_register_resndata(NULL, "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(NULL, "sh_mobile_sdhi", 1,
268                                           sdhi1_resources, ARRAY_SIZE(sdhi1_resources),
269                                           &sdhi1_pdata, sizeof(sdhi1_pdata));
270         platform_device_register_data(NULL, "gpio-keys", -1,
271                                       &ape6evm_keys_pdata,
272                                       sizeof(ape6evm_keys_pdata));
273         platform_device_register_data(NULL, "leds-gpio", -1,
274                                       &ape6evm_leds_pdata,
275                                       sizeof(ape6evm_leds_pdata));
276 }
277
278 static void __init ape6evm_legacy_init_time(void)
279 {
280         /* Do not invoke DT-based timers via clocksource_of_init() */
281 }
282
283 static void __init ape6evm_legacy_init_irq(void)
284 {
285         void __iomem *gic_dist_base = ioremap_nocache(0xf1001000, 0x1000);
286         void __iomem *gic_cpu_base = ioremap_nocache(0xf1002000, 0x1000);
287
288         gic_init(0, 29, gic_dist_base, gic_cpu_base);
289
290         /* Do not invoke DT-based interrupt code via irqchip_init() */
291 }
292
293
294 static const char *ape6evm_boards_compat_dt[] __initdata = {
295         "renesas,ape6evm",
296         NULL,
297 };
298
299 DT_MACHINE_START(APE6EVM_DT, "ape6evm")
300         .init_early     = shmobile_init_delay,
301         .init_irq       = ape6evm_legacy_init_irq,
302         .init_machine   = ape6evm_add_standard_devices,
303         .init_late      = shmobile_init_late,
304         .dt_compat      = ape6evm_boards_compat_dt,
305         .init_time      = ape6evm_legacy_init_time,
306 MACHINE_END